{"id":2007,"date":"2021-04-20T03:21:00","date_gmt":"2021-04-20T03:21:00","guid":{"rendered":"https:\/\/pj4iaixa9m.wpdns.site\/?p=2007"},"modified":"2021-04-22T04:57:43","modified_gmt":"2021-04-22T04:57:43","slug":"best-introduction-to-blanking-section-and-blanking-gap-foundation","status":"publish","type":"post","link":"https:\/\/www.harslepress.com\/cs\/best-introduction-to-blanking-section-and-blanking-gap-foundation\/","title":{"rendered":"\u00davod do sekce Blanking and Blanking Gap Foundation"},"content":{"rendered":"<p class=\"yoast-reading-time__wrapper\"><span class=\"yoast-reading-time__icon\"><\/span><span class=\"yoast-reading-time__descriptive-text\">P\u0159edpokl\u00e1dan\u00e1 doba \u010dten\u00ed:  <\/span><span class=\"yoast-reading-time__reading-time\">25<\/span><span class=\"yoast-reading-time__time-unit\"> minut<\/span><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Za norm\u00e1ln\u00edch okolnost\u00ed <a href=\"https:\/\/www.harsle.com\/J23-Inclinable-Punching-Machine-pd6320164.html\" target=\"_blank\" rel=\"noopener\">zatemn\u011bn\u00ed<\/a> pracovn\u00edch podm\u00ednek, smykov\u00e9 trhliny zp\u016fsoben\u00e9 okrajem <a href=\"https:\/\/www.harsle.com\/J23-Inclinable-Punching-Machine-pd6320164.html\" target=\"_blank\" rel=\"noopener\">r\u00e1na p\u011bst\u00ed<\/a> a smykov\u00e9 trhliny zp\u016fsoben\u00e9 okrajem konk\u00e1vn\u00ed matrice se vz\u00e1jemn\u011b spojuj\u00ed. V tomto okam\u017eiku lze z\u00edskat pr\u016f\u0159ez z\u00e1slepkou, jak je zn\u00e1zorn\u011bno na obr\u00e1zku 1-1. M\u00e1 n\u00e1sleduj\u00edc\u00ed 4 charakteristick\u00e9 oblasti.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"800\" height=\"391\" src=\"https:\/\/www.harslepress.com\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u56fe1.jpg\" alt=\"\" class=\"wd-lazy-fade wp-image-2009\" srcset=\"\" data-srcset=\"https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u56fe1.jpg 800w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u56fe1-150x73.jpg 150w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u56fe1-300x147.jpg 300w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u56fe1-768x375.jpg 768w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u56fe1-600x293.jpg 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption><br>Obr\u00e1zek 1-1 Pr\u016f\u0159ezov\u00e1 charakteristika z\u00e1slepek<\/figcaption><\/figure>\n\n\n\n<ul class=\"wp-block-list\"><li>Oblast sesunut\u00fdch roh\u016f (zaoblen\u00e9 rohy).<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Tato oblast je vytvo\u0159ena ohybovou a prodlu\u017eovac\u00ed deformac\u00ed materi\u00e1lu v bl\u00edzkosti okraje lisovn\u00edku, kdy\u017e je okraj lisovn\u00edku vtla\u010den do materi\u00e1lu, a materi\u00e1l je tvarov\u00e1n do mezery mezi lisovn\u00edkem a konk\u00e1vn\u00ed formou. P\u0159i procesu d\u011brov\u00e1n\u00ed je \u00fahel zhroucen\u00ed um\u00edst\u011bn na mal\u00e9m konci \u010d\u00e1sti otvoru; p\u0159i procesu vysek\u00e1v\u00e1n\u00ed je \u00fahel zhroucen\u00ed um\u00edst\u011bn na velk\u00e9m konci povrchu obrobku. \u010c\u00edm lep\u0161\u00ed je plasticita f\u00f3lie, t\u00edm v\u011bt\u0161\u00ed je mezera mezi konvexn\u00ed a konk\u00e1vn\u00ed formou a t\u00edm v\u011bt\u0161\u00ed je vytvo\u0159en\u00fd \u00fahel zhroucen\u00ed.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Sv\u011btl\u00e1 kapela<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Tato oblast se vyskytuje ve f\u00e1zi plastick\u00e9 deformace. Kdy\u017e \u0159ezn\u00e1 hrana \u0159e\u017ee do p\u00e1sov\u00e9ho materi\u00e1lu, p\u00e1sov\u00fd materi\u00e1l a bo\u010dn\u00ed povrchy konvexn\u00edch a konk\u00e1vn\u00edch \u0159ezn\u00fdch hran jsou vytla\u010dov\u00e1ny pro vytvo\u0159en\u00ed jasn\u00e9ho vertik\u00e1ln\u00edho \u0159ezu. Obvykle zab\u00edr\u00e1 1\/3~1\/2 cel\u00e9 sekce. P\u0159i procesu d\u011brov\u00e1n\u00ed je sv\u011btl\u00fd p\u00e1s um\u00edst\u011bn na mal\u00e9m konci \u010d\u00e1sti otvoru; v <a href=\"https:\/\/www.harslepress.com\/cs\/product\/100t-punching-machine-steel-hinge-making-automatic-power-press-production-line-foil-container-making-machine\/\">zatemn\u011bn\u00ed<\/a> P\u0159i procesu se sv\u011btl\u00fd p\u00e1s nach\u00e1z\u00ed na velk\u00e9m konci \u010d\u00e1sti d\u00edlu. \u010c\u00edm lep\u0161\u00ed je plasticita plechu, t\u00edm men\u0161\u00ed je mezera mezi konvexn\u00ed a konk\u00e1vn\u00ed formou a t\u00edm \u0161ir\u0161\u00ed je \u0161\u00ed\u0159ka sv\u011btl\u00e9ho p\u00e1su. Sv\u011btl\u00fd p\u00e1s je obvykle povrch m\u011b\u0159\u00edc\u00edho p\u00e1su, kter\u00fd ovliv\u0148uje rozm\u011brovou p\u0159esnost sou\u010d\u00e1sti.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Poruchov\u00e1 z\u00f3na<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Tato oblast se tvo\u0159\u00ed ve f\u00e1zi zlomeniny. Lomov\u00e1 z\u00f3na se nach\u00e1z\u00ed vedle sv\u011btl\u00e9 z\u00f3ny, co\u017e je trhac\u00ed povrch tvo\u0159en\u00fd kontinu\u00e1ln\u00ed expanz\u00ed mikrotrhlin v bl\u00edzkosti \u0159ezn\u00e9 hrany pod tahov\u00fdm nap\u011bt\u00edm. Povrch lomov\u00e9 z\u00f3ny je drsn\u00fd a m\u00e1 \u0161ikm\u00fd \u00fahel 4\u00b0~6\u00b0. P\u0159i procesu d\u011brov\u00e1n\u00ed je zlomenina um\u00edst\u011bna na velk\u00e9m konci \u010d\u00e1sti otvoru; p\u0159i procesu vysek\u00e1v\u00e1n\u00ed se zlomenina nach\u00e1z\u00ed na mal\u00e9m konci \u010d\u00e1sti d\u00edlu. \u010c\u00edm v\u011bt\u0161\u00ed je mezera mezi konvexn\u00ed a konk\u00e1vn\u00ed formou, t\u00edm \u0161ir\u0161\u00ed je z\u00f3na trhliny a t\u00edm v\u011bt\u0161\u00ed je \u0161ikm\u00fd \u00fahel.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Z\u00e1vada<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Vznik ot\u0159ep\u016f je zp\u016fsoben t\u00edm, \u017ee v pozdn\u00ed f\u00e1zi plastick\u00e9 deformace, kdy se \u0159ezn\u00e9 hrany razn\u00edku a matrice za\u0159ez\u00e1vaj\u00ed do zpracov\u00e1van\u00e9ho plechu do ur\u010dit\u00e9 hloubky, doch\u00e1z\u00ed ke stla\u010den\u00ed materi\u00e1lu na p\u0159edn\u00ed stran\u011b \u0159ezn\u00e9 hrany, a \u0159ezn\u00e1 hrana je ve stavu vysok\u00e9ho statick\u00e9ho tlaku, tak\u017ee po\u010d\u00e1te\u010dn\u00ed bod trhliny se nevyskytuje na \u0161pi\u010dce \u010depele, ale nedaleko od strany formy. P\u016fsoben\u00edm tahov\u00e9ho nap\u011bt\u00ed se trhliny prodlou\u017e\u00ed a materi\u00e1l se l\u00e1me za vzniku ot\u0159ep\u016f. Vzd\u00e1lenost mezi m\u00edstem, kde dojde k prasknut\u00ed, a \u0161pi\u010dkou \u010depele se stanou ot\u0159epy. v\u00fd\u0161ka. Ot\u0159epy jsou p\u0159i b\u011b\u017en\u00e9m vysek\u00e1v\u00e1n\u00ed nevyhnuteln\u00e9.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Existuje mnoho faktor\u016f, kter\u00e9 ovliv\u0148uj\u00ed kvalitu sekce st\u0159\u00edhac\u00edch d\u00edl\u016f, z nich\u017e nejvlivn\u011bj\u0161\u00ed je st\u0159ihov\u00e1 mezera mezi konvexn\u00edmi a konk\u00e1vn\u00edmi matricemi. Za podm\u00ednek zaslepen\u00ed s p\u0159im\u011b\u0159enou v\u016fl\u00ed m\u00e1 z\u00edskan\u00fd zaslepovac\u00ed kus mal\u00fd \u00fahel zhroucen\u00ed pr\u016f\u0159ezu a norm\u00e1ln\u00ed jasn\u00fd p\u00e1s. P\u0159esto\u017ee je poru\u0161en\u00fd p\u00e1s drsn\u00fd, je relativn\u011b ploch\u00fd, s mal\u00fdm sklonem a bez zjevn\u00fdch ot\u0159ep\u016f.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-dimensional-accuracy-of-blanking-parts\"><strong>Rozm\u011brov\u00e1 p\u0159esnost vysek\u00e1v\u00e1n\u00ed d\u00edl\u016f<\/strong><strong><\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Rozm\u011brov\u00e1 p\u0159esnost z\u00e1slepky se vztahuje k rozd\u00edlu mezi skute\u010dnou velikost\u00ed z\u00e1slepky a z\u00e1kladn\u00ed velikost\u00ed na v\u00fdkresu. \u010c\u00edm men\u0161\u00ed rozd\u00edl, t\u00edm vy\u0161\u0161\u00ed p\u0159esnost. Tento rozd\u00edl zahrnuje dv\u011b odchylky: jedna je v\u00fdrobn\u00ed odchylka samotn\u00e9 formy a druh\u00e1 je odchylka vysek\u00e1vac\u00ed \u010d\u00e1sti vzhledem k velikosti lisovn\u00edku nebo matrice.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Rozm\u011brov\u00e1 p\u0159esnost st\u0159\u00edhac\u00edch d\u00edl\u016f souvis\u00ed s mnoha faktory, jako je stupe\u0148 v\u00fdroby matrice, st\u0159i\u017en\u00e1 mezera, vlastnosti materi\u00e1lu atd. Hlavn\u00edm faktorem je st\u0159i\u017en\u00e1 mezera.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>V\u00fdrobn\u00ed p\u0159esnost raznice<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00fdrobn\u00ed p\u0159esnost matrice m\u00e1 p\u0159\u00edm\u00fd vliv na rozm\u011brovou p\u0159esnost vysek\u00e1vac\u00edch d\u00edl\u016f. \u010c\u00edm vy\u0161\u0161\u00ed je p\u0159esnost matrice, t\u00edm vy\u0161\u0161\u00ed je p\u0159esnost vysek\u00e1vac\u00edho d\u00edlu za jin\u00fdch podm\u00ednek. Za norm\u00e1ln\u00edch okolnost\u00ed je v\u00fdrobn\u00ed p\u0159esnost raznice o 2 a\u017e 4 \u00farovn\u011b p\u0159esnosti vy\u0161\u0161\u00ed ne\u017e p\u0159esnost vysek\u00e1vac\u00edch d\u00edl\u016f. Kdy\u017e m\u00e1 vysek\u00e1vac\u00ed z\u00e1pustka p\u0159im\u011b\u0159enou v\u016fli a ostr\u00e9 hrany, vztah mezi p\u0159esnost\u00ed v\u00fdroby z\u00e1pustky a p\u0159esnost\u00ed z\u00e1sekov\u00fdch \u010d\u00e1st\u00ed je uveden v tabulce 1-2.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"800\" height=\"463\" src=\"https:\/\/www.harslepress.com\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u88681-2.jpg\" alt=\"\" class=\"wd-lazy-fade wp-image-2012\" srcset=\"\" data-srcset=\"https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u88681-2.jpg 800w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u88681-2-150x87.jpg 150w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u88681-2-300x174.jpg 300w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u88681-2-768x444.jpg 768w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u88681-2-600x347.jpg 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption>Tabulka 1-2 P\u0159esnost zaslepovac\u00edch d\u00edl\u016f<\/figcaption><\/figure>\n\n\n\n<ul class=\"wp-block-list\"><li>Zaslepovac\u00ed mezera<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Kdy\u017e je mezera p\u0159\u00edli\u0161 velk\u00e1, krom\u011b st\u0159ihu b\u011bhem procesu vysek\u00e1v\u00e1n\u00ed bude listov\u00fd materi\u00e1l tak\u00e9 produkovat v\u011bt\u0161\u00ed natahov\u00e1n\u00ed a deformaci ohybem. Po vyst\u0159i\u017een\u00ed se materi\u00e1l pru\u017en\u011b vzpamatuje a velikost z\u00e1\u0159ezu se smr\u0161t\u00ed ve skute\u010dn\u00e9m sm\u011bru. U vysek\u00e1vac\u00edch d\u00edl\u016f bude velikost men\u0161\u00ed ne\u017e velikost raznice a u vysek\u00e1vac\u00edch d\u00edl\u016f bude velikost v\u011bt\u0161\u00ed ne\u017e velikost razidla.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kdy\u017e je mezera p\u0159\u00edli\u0161 mal\u00e1, bude listov\u00fd materi\u00e1l krom\u011b st\u0159ihu vystaven v\u011bt\u0161\u00edmu stla\u010den\u00ed b\u011bhem procesu vysek\u00e1v\u00e1n\u00ed. Po vysek\u00e1v\u00e1n\u00ed zp\u016fsob\u00ed elastick\u00e9 zotaven\u00ed materi\u00e1lu velikost zast\u0159ihovac\u00edho kusu, aby se rozt\u00e1hla v opa\u010dn\u00e9m sm\u011bru entity. U vysek\u00e1vac\u00edch d\u00edl\u016f bude jeho velikost v\u011bt\u0161\u00ed ne\u017e velikost matrice; u d\u011brovac\u00edch d\u00edl\u016f bude jeho velikost men\u0161\u00ed ne\u017e velikost razn\u00edku.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kdy\u017e je mezera vhodn\u00e1, b\u011bhem procesu d\u011brov\u00e1n\u00ed se deforma\u010dn\u00ed z\u00f3na listov\u00e9ho materi\u00e1lu odd\u011bl\u00ed p\u016fsoben\u00edm st\u0159ihu, tak\u017ee velikost z\u00e1\u0159ezu je rovna velikosti matrice a velikosti d\u011brovac\u00edho kusu se rovn\u00e1 velikosti razn\u00edku.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Povaha materi\u00e1lu<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Povaha materi\u00e1lu m\u00e1 velk\u00fd vliv na velikost pru\u017en\u00e9 deformace materi\u00e1lu p\u0159i procesu d\u011brov\u00e1n\u00ed. Elastick\u00e1 deformace m\u011bkk\u00e9 oceli je mal\u00e1 a hodnota odskoku po d\u011brov\u00e1n\u00ed je tak\u00e9 mal\u00e1, tak\u017ee p\u0159esnost d\u00edl\u016f je vysok\u00e1. U tvrd\u00e9 oceli je situace pr\u00e1v\u011b opa\u010dn\u00e1.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Chyba tvaru z\u00e1slepky<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Chyba tvaru z\u00e1slepek se t\u00fdk\u00e1 defekt\u016f, jako je deformace, zkreslen\u00ed a deformace. Nadm\u011brn\u00e1 v\u016fle m\u016f\u017ee snadno zp\u016fsobit deformaci (kopule); nerovnom\u011brn\u00fd materi\u00e1l, nerovnom\u011brn\u00e1 v\u016fle a nerovnom\u011brn\u00e9 t\u0159en\u00ed mezi zadn\u00edm \u00fahlem matrice a materi\u00e1lem zp\u016fsob\u00ed vady zkreslen\u00ed; okraj polotovaru je prora\u017een nebo je p\u0159\u00edli\u0161 mal\u00e1 vzd\u00e1lenost otvoru atd., bude zp\u016fsobeno vyboulen\u00edm. Deformovan\u00e9.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Hlavn\u00edm faktorem, kter\u00fd ovliv\u0148uje tvarovou chybu z\u00e1slepky, je mezera \u010depele. Studie uk\u00e1zaly, \u017ee obecn\u00fdm pravidlem vlivu mezery na kupoli z\u00e1slepkov\u00fdch d\u00edl\u016f je, \u017ee kdy\u017e je mezera mal\u00e1, kupole je v\u011bt\u0161\u00ed; kdy\u017e je mezera tlou\u0161\u0165ky materi\u00e1lu (5%~15%), kopule je men\u0161\u00ed; jak se mezera zv\u011bt\u0161uje, kopule se zv\u011bt\u0161\u00ed, aby se sn\u00ed\u017eila rovinnost z\u00e1slepky.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">P\u0159i d\u011brov\u00e1n\u00ed se vy\u017eaduje nejen d\u011brov\u00e1n\u00ed d\u00edl\u016f, kter\u00e9 sv\u00fdm tvarem a velikost\u00ed odpov\u00eddaj\u00ed po\u017eadavk\u016fm v\u00fdkresu, ale maj\u00ed i ur\u010dit\u00e9 po\u017eadavky na kvalitu. Kvalita z\u00e1slepek zahrnuje kvalitu \u0159ezu, rozm\u011brovou p\u0159esnost a tvarovou chybu. Zaslepovac\u00ed sekce by m\u011bla b\u00fdt co nejv\u00edce svisl\u00e1, hladk\u00e1 a s mal\u00fdmi ot\u0159epy. Rozm\u011brov\u00e1 p\u0159esnost by m\u011bla b\u00fdt zaru\u010dena v rozsahu tolerance specifikovan\u00e9m na v\u00fdkresech. Tvar sou\u010d\u00e1sti by m\u011bl spl\u0148ovat po\u017eadavky v\u00fdkresu a povrch by m\u011bl b\u00fdt co nejvertik\u00e1ln\u011bj\u0161\u00ed, to znamen\u00e1, \u017ee kopule by m\u011bla b\u00fdt mal\u00e1.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Rozd\u00edl mezi rozm\u011bry konvexn\u00edho a konk\u00e1vn\u00edho okraje d\u011brovac\u00ed matrice se naz\u00fdv\u00e1 d\u011brovac\u00ed mezera, kter\u00e1 je zn\u00e1zorn\u011bna Z, a tak\u00e9 oboustrann\u00e1 mezera (jednostrann\u00e1 mezera je zn\u00e1zorn\u011bna Z\/2). Mezera je velmi d\u016fle\u017eit\u00fdm procesn\u00edm parametrem p\u0159i konstrukci vysek\u00e1vac\u00ed matrice. Mezera st\u0159\u00edh\u00e1n\u00ed m\u00e1 velk\u00fd vliv na kvalitu, s\u00edlu st\u0159\u00edh\u00e1n\u00ed a \u017eivotnost z\u00e1\u0159ez\u016f. V dlouhodob\u00e9m v\u00fdzkumu se zjistilo, \u017ee z\u00e1kon vlivu je jin\u00fd. Neexistuje tedy absolutn\u011b rozumn\u00e1 hodnota mezery, kter\u00e1 by z\u00e1rove\u0148 dok\u00e1zala splnit po\u017eadavky na nejlep\u0161\u00ed kvalitu pr\u016f\u0159ezu st\u0159\u00edhac\u00edch d\u00edl\u016f, nejvy\u0161\u0161\u00ed rozm\u011brovou p\u0159esnost, nejdel\u0161\u00ed \u017eivotnost a nejmen\u0161\u00ed st\u0159\u00edhac\u00ed s\u00edlu. Ve skute\u010dn\u00e9 v\u00fdrob\u011b se p\u0159i v\u00fdb\u011bru mezery zohled\u0148uj\u00ed p\u0159edev\u0161\u00edm dva hlavn\u00ed faktory kvality v\u00fdseku v\u00fdst\u0159i\u017eku a \u017eivotnosti formy, kter\u00e9 \u00fazce souvis\u00ed s v\u00fdrobn\u00edmi n\u00e1klady a kvalitou v\u00fdrobku.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><a href=\"https:\/\/www.harslepress.com\/cs\/product\/100t-punching-machine-steel-hinge-making-automatic-power-press-production-line-foil-container-making-machine\/\">Zatemn\u011bn\u00ed<\/a> mezera<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Zaslepovac\u00ed mezera m\u00e1 velk\u00fd vliv na kvalitu vysek\u00e1vac\u00edho d\u00edlu, \u017eivotnost matrice, vyb\u00edjec\u00ed s\u00edlu atd., ale z\u00e1kon vlivu je jin\u00fd a neexistuje \u017e\u00e1dn\u00e1 mezera, kter\u00e1 by vyhovovala po\u017eadavk\u016fm na kvalitu obrobku, \u017eivotnost matrice a s\u00edlu vysek\u00e1v\u00e1n\u00ed p\u0159i stejn\u00fd \u010das. P\u0159i skute\u010dn\u00e9 v\u00fdrob\u011b se p\u0159i v\u00fdb\u011bru zast\u0159ihovac\u00ed mezery zohled\u0148uje p\u0159edev\u0161\u00edm kvalita zast\u0159ihovac\u00ed sekce a \u017eivotnost formy. Sou\u010dasn\u011b s ohledem na odchylky ve v\u00fdrob\u011b forem a opot\u0159eben\u00ed p\u0159i pou\u017e\u00edv\u00e1n\u00ed vyberte vhodn\u00fd rozsah mezery, pokud lze v tomto rozsahu zpracov\u00e1vat dobr\u00e9 z\u00e1\u0159ezov\u00e9 d\u00edly. Minim\u00e1ln\u00ed hodnota tohoto rozsahu se naz\u00fdv\u00e1 minim\u00e1ln\u00ed rozumn\u00e1 mezera, kter\u00e1 je reprezentov\u00e1na Z<sub>min<\/sub>; maxim\u00e1ln\u00ed hodnota se naz\u00fdv\u00e1 maxim\u00e1ln\u00ed rozumn\u00e1 mezera, kter\u00e1 je reprezentov\u00e1na Z<sub>max<\/sub>. Vzhledem k tomu, \u017ee opot\u0159eben\u00ed formy b\u011bhem pou\u017e\u00edv\u00e1n\u00ed zv\u011bt\u0161\u00ed mezeru, vlastn\u00ed konstrukce a v\u00fdroba formy \u010dasto pou\u017e\u00edv\u00e1 minim\u00e1ln\u00ed rozumnou mezeru Z<sub>min<\/sub>.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Stanoven\u00ed p\u0159im\u011b\u0159en\u00e9 slep\u00e9 mezery<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">V sou\u010dasn\u00e9 dob\u011b existuj\u00ed t\u0159i metody pro stanoven\u00ed p\u0159im\u011b\u0159en\u00e9 hodnoty slep\u00e9 mezery: teoretick\u00e9 stanoven\u00ed, empirick\u00e9 stanoven\u00ed a metoda vyhled\u00e1vac\u00ed tabulky.<\/p>\n\n\n\n<ol class=\"wp-block-list\" type=\"1\"><li>Teoretick\u00e1 metoda stanoven\u00ed.<\/li><\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Metoda teoretick\u00e9ho stanoven\u00ed se tak\u00e9 naz\u00fdv\u00e1 metoda vzorce. Hlavn\u00edm z\u00e1kladem t\u00e9to metody je zajistit, aby se horn\u00ed a spodn\u00ed mikrotrhliny p\u0159ekr\u00fdvaly a z\u00edskaly tak dobr\u00fd \u0159ez.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Obr\u00e1zek 1-3 ukazuje okam\u017eit\u00fd stav trhlin p\u0159i d\u011brov\u00e1n\u00ed. Podle geometrick\u00e9ho vztahu na obr\u00e1zku lze z\u00edskat p\u0159im\u011b\u0159enou mezeru jako<\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">                                                                 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Z=2(th<sub>0<\/sub>)tanp=2t(1-h<sub>0<\/sub>\/t)tan\u03b2 (2-1)&nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"800\" height=\"660\" src=\"https:\/\/www.harslepress.com\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u56fe2-1.jpg\" alt=\"\" class=\"wd-lazy-fade wp-image-2011\" srcset=\"\" data-srcset=\"https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u56fe2-1.jpg 800w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u56fe2-1-150x124.jpg 150w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u56fe2-1-300x248.jpg 300w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u56fe2-1-768x634.jpg 768w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u56fe2-1-600x495.jpg 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption><br>Obr\u00e1zek 1-3 Teoretick\u00fd diagram v\u00fdpo\u010dtu slep\u00e9 mezery<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Zde t \u2014 tlou\u0161\u0165ka materi\u00e1lu;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">           h<sub>0<\/sub>\u2014-Hloubka d\u011brov\u00e1n\u00ed do materi\u00e1lu, kdy\u017e se objev\u00ed trhliny;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">           h<sub>0<\/sub>\/t\u2014-relativn\u00ed hloubka prora\u017een\u00ed do materi\u00e1lu p\u0159i v\u00fdskytu trhlin;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">           \u03b2 \u2013 \u00fahel mezi smykovou trhlinou a svislic\u00ed<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Z rovnice 2-1 je vid\u011bt, \u017ee p\u0159im\u011b\u0159en\u00e1 mezera Z souvis\u00ed s tlou\u0161\u0165kou materi\u00e1lu t, relativn\u00ed hloubkou pr\u016fniku razn\u00edku do materi\u00e1lu h0\/t a \u00fahlem trhliny \u03b2, a h0\/t se nevztahuje pouze na plasticita materi\u00e1lu, ale tak\u00e9 ovlivn\u011bn\u00e1 celkovou tlou\u0161\u0165kou materi\u00e1lu. vlivy. Hodnoty h<sub>0<\/sub>\/t a p jsou uvedeny v tabulce 1-4.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:100%\">\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"800\" height=\"469\" src=\"https:\/\/www.harslepress.com\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u88681-4.jpg\" alt=\"\" class=\"wd-lazy-fade wp-image-2013\" srcset=\"\" data-srcset=\"https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u88681-4.jpg 800w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u88681-4-300x176.jpg 300w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u88681-4-768x450.jpg 768w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u88681-4-18x12.jpg 18w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u88681-4-150x88.jpg 150w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption>Tabulka 1-4 h<sub>\u00d3<\/sub>hodnoty \/t a \u03b2 n\u011bkter\u00fdch materi\u00e1l\u016f<\/figcaption><\/figure>\n<\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Stru\u010dn\u011b \u0159e\u010deno, \u010d\u00edm v\u011bt\u0161\u00ed je tlou\u0161\u0165ka materi\u00e1lu, t\u00edm ni\u017e\u0161\u00ed je plasticita tvrd\u00fdch a k\u0159ehk\u00fdch materi\u00e1l\u016f, t\u00edm v\u011bt\u0161\u00ed je po\u017eadovan\u00e1 hodnota mezery Z; \u010d\u00edm ten\u010d\u00ed je tlou\u0161\u0165ka materi\u00e1lu, t\u00edm lep\u0161\u00ed je plasticita, t\u00edm men\u0161\u00ed je po\u017eadovan\u00e1 hodnota mezery.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Vzhledem k tomu, \u017ee metoda teoretick\u00e9ho v\u00fdpo\u010dtu je nepohodln\u00e1 pro pou\u017eit\u00ed ve v\u00fdrob\u011b, jsou v sou\u010dasnosti \u0161iroce pou\u017e\u00edv\u00e1na empirick\u00e1 data.<\/p>\n\n\n\n<ol class=\"wp-block-list\" type=\"1\"><li>Empirick\u00e1 metoda stanoven\u00ed<\/li><\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Pro v\u00fdpo\u010det hodnoty p\u0159im\u011b\u0159en\u00e9 slep\u00e9 mezery Z se ve v\u00fdrob\u011b b\u011b\u017en\u011b pou\u017e\u00edv\u00e1 n\u00e1sleduj\u00edc\u00ed empirick\u00fd vzorec.<\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">                                                         Z=ct (2-2)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ve vzorci t\u2014-tlou\u0161\u0165ka materi\u00e1lu, (mm);<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">                             c\u2014-Koeficient souvisej\u00edc\u00ed s vlastnostmi materi\u00e1lu a tlou\u0161\u0165kou, kdy\u017e t&lt;3mm, c=6%~12%; kdy\u017e t&gt;3 mm, c=15%~25%.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kdy\u017e je materi\u00e1l m\u011bkk\u00fd, vezm\u011bte malou hodnotu; kdy\u017e je materi\u00e1l tvrd\u00fd, vezm\u011bte velkou hodnotu.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Metoda vyhled\u00e1vac\u00ed tabulky<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Obecn\u011b budou empirick\u00e1 data poskytnuta speci\u00e1ln\u00ed tabulkou pro po\u010d\u00e1te\u010dn\u00ed st\u0159i\u017enou mezeru vysek\u00e1vac\u00edch a d\u011brovac\u00edch matric, kterou lze pou\u017e\u00edt pro st\u0159\u00edh\u00e1n\u00ed za obecn\u00fdch podm\u00ednek. Minim\u00e1ln\u00ed hodnota Z<sub>min<\/sub>&nbsp;po\u010d\u00e1te\u010dn\u00ed mezery v tabulce je minim\u00e1ln\u00ed rozumn\u00e1 mezera a maxim\u00e1ln\u00ed hodnota Z<sub>max<\/sub>&nbsp;po\u010d\u00e1te\u010dn\u00ed mezery je vz\u00edt v \u00favahu v\u00fdrobn\u00ed chybu razn\u00edku a matrice, p\u0159idat hodnotu na z\u00e1klad\u011b Z<sub>min<\/sub>. B\u011bhem pou\u017e\u00edv\u00e1n\u00ed se bude mezera zv\u011bt\u0161ovat opot\u0159eben\u00edm pracovn\u00ed \u010d\u00e1sti formy, tak\u017ee maxim\u00e1ln\u00ed mezera (maxim\u00e1ln\u00ed rozumn\u00e1 mezera) m\u016f\u017ee p\u0159ekro\u010dit hodnotu uvedenou v tabulce.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Princip v\u00fdb\u011bru p\u0159im\u011b\u0159en\u00e9 mezery d\u011brov\u00e1n\u00ed<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00fdrobn\u00ed praxe prok\u00e1zala, \u017ee kdy\u017e je zaslepovac\u00ed mezera nastavena na malou hodnotu, kvalita pr\u016f\u0159ezu zaslepovac\u00edho d\u00edlu je lep\u0161\u00ed, ale pokud je mezera p\u0159\u00edli\u0161 mal\u00e1, zv\u00fd\u0161\u00ed se zaslepovac\u00ed s\u00edla a vratn\u00e1 s\u00edla a servis \u017eivotnost formy se zkr\u00e1t\u00ed. Proto by p\u0159i v\u00fdb\u011bru slep\u00e9 mezery m\u011bly b\u00fdt komplexn\u011b zv\u00e1\u017eeny r\u016fzn\u00e9 faktory.<\/p>\n\n\n\n<ol class=\"wp-block-list\" type=\"1\"><li>Nen\u00ed-li kvalita d\u011brovac\u00edch d\u00edl\u016f vysok\u00e1, mezera by m\u011bla b\u00fdt co nejv\u011bt\u0161\u00ed v rozumn\u00e9m rozsahu, aby se prodlou\u017eila \u017eivotnost formy a sn\u00ed\u017eila se s\u00edla d\u011brov\u00e1n\u00ed, tla\u010dn\u00e1 s\u00edla a vykl\u00e1dac\u00ed s\u00edla.<\/li><li>Kdy\u017e je kvalita vysek\u00e1vac\u00edch d\u00edl\u016f vysok\u00e1, m\u011bla by b\u00fdt v rozumn\u00e9m rozsahu v\u016fle zvolena men\u0161\u00ed hodnota, tak\u017ee i kdy\u017e se sn\u00ed\u017e\u00ed \u017eivotnost matrice, je zaru\u010dena kvalita vyst\u0159i\u017een\u00ed d\u00edl\u016f.<\/li><\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">P\u0159i konstrukci matrice Z<sub>min<\/sub>&nbsp;je obecn\u011b br\u00e1na jako po\u010d\u00e1te\u010dn\u00ed mezera, hlavn\u011b s ohledem na to, \u017ee matrice by m\u011bla b\u00fdt po ur\u010dit\u00e9 dob\u011b nabrou\u0161ena. Po brou\u0161en\u00ed se mezera zv\u011bt\u0161\u00ed a vytvo\u0159\u00ed p\u0159echod od Z<sub>min<\/sub>&nbsp;do Z<sub>max<\/sub>. Proto, aby forma mohla vyr\u00e1\u017eet kvalifikovan\u00e9 d\u00edly v relativn\u011b dlouh\u00e9m \u010dasov\u00e9m obdob\u00ed, zvy\u0161te m\u00edru vyu\u017eit\u00ed formy a sni\u017ete v\u00fdrobn\u00ed n\u00e1klady, Z<sub>min<\/sub>&nbsp;se obecn\u011b pou\u017e\u00edv\u00e1 jako po\u010d\u00e1te\u010dn\u00ed mezera p\u0159i navrhov\u00e1n\u00ed formy.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>V\u00fdpo\u010det velikosti konvexn\u00ed a konk\u00e1vn\u00ed \u0159ezn\u00e9 hrany<\/strong><strong><\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Velikost ost\u0159\u00ed a tolerance jsou hlavn\u00edmi faktory, kter\u00e9 ovliv\u0148uj\u00ed rozm\u011brovou p\u0159esnost vysek\u00e1vac\u00edch d\u00edl\u016f. P\u0159im\u011b\u0159en\u00e1 hodnota mezery matrice je tak\u00e9 zaru\u010dena velikost\u00ed konvexn\u00edch a konk\u00e1vn\u00edch hran matrice a jejich tolerancemi. Proto je spr\u00e1vn\u00e9 stanoven\u00ed rozm\u011br\u016f a toleranc\u00ed \u0159ezn\u00fdch hran konvexn\u00edch a konk\u00e1vn\u00edch z\u00e1pustek kl\u00ed\u010dov\u00fdm \u00fakolem p\u0159i konstrukci z\u00e1pustky.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Princip v\u00fdpo\u010dtu<\/strong><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Existence mezery mezi konvexn\u00edmi a konk\u00e1vn\u00edmi matricemi zp\u016fsobuje z\u00fa\u017een\u00ed pr\u016f\u0159ezu z\u00e1slepky, tak\u017ee m\u011b\u0159en\u00ed velikosti a pou\u017eit\u00ed z\u00e1slepky jsou zalo\u017eeny na velikosti leskl\u00e9ho p\u00e1su. Leskl\u00fd p\u00e1s st\u0159i\u017enice se vyr\u00e1b\u00ed \u0159ez\u00e1n\u00edm materi\u00e1lu \u0159eznou hranou raznice a sv\u011btl\u00fd p\u00e1s d\u011brovac\u00ed \u010d\u00e1sti se vyr\u00e1b\u00ed \u0159ez\u00e1n\u00edm materi\u00e1lu ost\u0159\u00edm razn\u00edku. Proto by n\u00e1vrh velikosti konvexn\u00edch a konk\u00e1vn\u00edch hran m\u011bl rozli\u0161ovat mezi d\u011brov\u00e1n\u00edm a vysek\u00e1v\u00e1n\u00edm a dodr\u017eovat n\u00e1sleduj\u00edc\u00ed z\u00e1sady.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Ur\u010dete velikost b\u0159itu referen\u010dn\u00ed matrice.<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Vysek\u00e1vac\u00ed matrice je navr\u017eena tak, aby nejprve ur\u010dila velikost \u0159ezn\u00e9 hrany konk\u00e1vn\u00ed matrice. Mezera se bere na konvexn\u00ed matrici na z\u00e1klad\u011b konk\u00e1vn\u00ed matrice a zaslepovac\u00ed mezera se z\u00edsk\u00e1 zmen\u0161en\u00edm velikosti konvexn\u00ed matrice. P\u0159i navrhov\u00e1n\u00ed d\u011brovac\u00ed matrice nejprve ur\u010dete velikost d\u011brovac\u00ed \u010depele, vezm\u011bte razn\u00edk jako m\u011b\u0159\u00edtko a vezm\u011bte mezeru na matrici. Vysek\u00e1vac\u00ed mezera se z\u00edsk\u00e1 zv\u011bt\u0161en\u00edm velikosti matrice.<\/p>\n\n\n\n<h5 class=\"wp-block-heading\"><strong>P\u0159i pou\u017e\u00edv\u00e1n\u00ed dodr\u017eujte z\u00e1kon o opot\u0159eben\u00ed matrice<\/strong><\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">B\u011bhem procesu vysek\u00e1v\u00e1n\u00ed se konvexn\u00ed a konk\u00e1vn\u00ed formy ot\u00edraj\u00ed o vysek\u00e1vac\u00ed d\u00edly nebo odpad. Obrys konvexn\u00ed formy se zmen\u0161uje a zmen\u0161uje, obrys konk\u00e1vn\u00ed formy se zv\u011bt\u0161uje a mezera mezi konvexn\u00ed formou a konk\u00e1vn\u00ed formou se zv\u011bt\u0161uje. P\u0159i n\u00e1vrhu vysek\u00e1vac\u00ed matrice by m\u011bla b\u00fdt p\u016fvodn\u00ed velikost matrice bl\u00edzk\u00e1 nebo rovna minim\u00e1ln\u00ed velikosti obrobku; p\u0159i n\u00e1vrhu d\u011brovac\u00ed matrice by se z\u00e1kladn\u00ed velikost razn\u00edku m\u011bla bl\u00ed\u017eit nebo rovnat maxim\u00e1ln\u00ed mezn\u00ed velikosti otvoru obrobku. Bez ohledu na d\u011brov\u00e1n\u00ed nebo vysek\u00e1v\u00e1n\u00ed se zaslepovac\u00ed mezera obecn\u011b vol\u00ed jako nejmen\u0161\u00ed rozumn\u00e1 hodnota mezery Z<sub>min<\/sub>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Rezerva opot\u0159eben\u00ed formy souvis\u00ed s p\u0159esnost\u00ed v\u00fdroby obrobku. Vyj\u00e1d\u0159eno x\u0394, \u0394 je hodnota tolerance obrobku a x je koeficient opot\u0159eben\u00ed a jeho hodnota je mezi 0,5 a 1. N\u00e1sleduj\u00edc\u00ed principy v\u00fdb\u011bru jsou zalo\u017eeny na v\u00fdrobn\u00ed p\u0159esnosti obrobku.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">P\u0159esnost obrobku je vy\u0161\u0161\u00ed ne\u017e IT10: x=1;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">P\u0159esnost obrobku je IT11~IT13: x=0,75;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">P\u0159esnost obrobku je IT14: x=0,5.<\/p>\n\n\n\n<h5 class=\"wp-block-heading\"><strong>Zva\u017ete vztah mezi p\u0159esnost\u00ed obrobku a p\u0159esnost\u00ed formy<\/strong><\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">P\u0159i volb\u011b v\u00fdrobn\u00ed tolerance hrany z\u00e1pustky je nutn\u00e9 zv\u00e1\u017eit vztah mezi p\u0159esnost\u00ed obrobku a p\u0159esnost\u00ed z\u00e1pustky, a to nejen pro zaji\u0161t\u011bn\u00ed p\u0159esnosti obrobku, ale tak\u00e9 pro zaji\u0161t\u011bn\u00ed p\u0159im\u011b\u0159en\u00e9 mezery hodnota. Obecn\u011b je p\u0159esnost matrice o 2 ~ 4 vy\u0161\u0161\u00ed ne\u017e p\u0159esnost obrobku. Pro jednoduch\u00e9 kruhov\u00e9 a \u010dtvercov\u00e9 b\u0159ity lze v\u00fdrobn\u00ed odchylku zvolit podle IT6~IT7; u slo\u017eit\u00fdch b\u0159it\u016f lze v\u00fdrobn\u00ed odchylku zvolit podle 1\/4 hodnoty tolerance odpov\u00eddaj\u00edc\u00ed \u010d\u00e1sti obrobku; pro \u0159ezn\u00e9 hrany Pokud se velikost \u00fast\u00ed po opot\u0159eben\u00ed nezm\u011bn\u00ed, m\u016f\u017ee b\u00fdt hodnota v\u00fdrobn\u00ed odchylky 1\/8 hodnoty tolerance odpov\u00eddaj\u00edc\u00ed \u010d\u00e1sti obrobku a p\u0159edpona \u201e\u00b1\u201c.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Ozna\u010den\u00ed tolerance se \u0159\u00edd\u00ed z\u00e1sadou \u201edo t\u011bla\u201c<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Tolerance velikosti obrobku a v\u00fdrobn\u00ed odchylka velikosti hrany z\u00e1pustky by m\u011bly b\u00fdt z\u00e1sadn\u011b ozna\u010deny jako jednosm\u011brn\u00e1 tolerance podle principu \u201evstupov\u00e1n\u00ed do t\u011bla\u201c. Princip takzvan\u00e9ho \u201elidsk\u00e9ho t\u011bla\u201c znamen\u00e1, \u017ee index by m\u011bl b\u00fdt ozna\u010den ve sm\u011bru materi\u00e1lov\u00e9 entity, kdy\u017e je specifikov\u00e1na tolerance velikosti obrobku. U rozm\u011br\u016f, kter\u00e9 se po opot\u0159eben\u00ed nem\u011bn\u00ed, je v\u0161ak obousm\u011brn\u00e1 odchylka obecn\u011b v\u00fdrazn\u00e1.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00fdpo\u010det velikosti \u0159ezn\u00e9 hrany konvexn\u00edch a konk\u00e1vn\u00edch forem by m\u011bl vz\u00edt v \u00favahu vlastnosti v\u00fdroby forem.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>V\u00fdpo\u010det velikosti \u0159ezn\u00e9 hrany <a href=\"https:\/\/www.harsle.com\/J23-Inclinable-Punching-Machine-pd6320164.html\" target=\"_blank\" rel=\"noopener\">r\u00e1na p\u011bst\u00ed<\/a> a zem\u0159\u00edt<\/strong><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Vzhledem k r\u016fzn\u00fdm metod\u00e1m zpracov\u00e1n\u00ed matrice je odli\u0161n\u00fd i zp\u016fsob v\u00fdpo\u010dtu velikosti b\u0159itu, kter\u00fd lze v z\u00e1sad\u011b rozd\u011blit do dvou kategori\u00ed.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Zp\u016fsob zpracov\u00e1n\u00ed samostatn\u011b podle vzoru razn\u00edku a konk\u00e1vn\u00ed formy.<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Tato metoda je vhodn\u00e1 p\u0159edev\u0161\u00edm pro kulat\u00e9 nebo jednoduch\u00e9 a pravideln\u00e9 tvarovan\u00e9 obrobky. Proto\u017ee konvexn\u00ed a konk\u00e1vn\u00ed formy pro st\u0159\u00edh\u00e1n\u00ed takov\u00fdch obrobk\u016f jsou relativn\u011b jednoduch\u00e9 na v\u00fdrobu a p\u0159esnost je snadn\u00e9 zajistit, je pou\u017eito samostatn\u00e9 zpracov\u00e1n\u00ed. P\u0159i n\u00e1vrhu by m\u011bly b\u00fdt na v\u00fdkresech vyzna\u010deny rozm\u011bry a v\u00fdrobn\u00ed tolerance razn\u00edku a \u0159ezn\u00fdch hran.<\/p>\n\n\n\n<h6 class=\"wp-block-heading\"><strong>d\u011brov\u00e1n\u00ed.<\/strong><strong><\/strong><\/h6>\n\n\n\n<p class=\"wp-block-paragraph\">P\u0159edpokl\u00e1dejme, \u017ee pr\u016fm\u011br otvoru d\u011brovan\u00e9ho d\u00edlu je d<sub>0<\/sub><sup>+A<\/sup>. Podle principu v\u00fdpo\u010dtu velikosti b\u0159itu je vzorec v\u00fdpo\u010dtu n\u00e1sleduj\u00edc\u00ed.<\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">Konvexn\u00ed forma: d<sub>p<\/sub>=(1+x\u0394)<sup>0<\/sup><sub>-\u03b4p<\/sub>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;        &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2-3)<\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">Zem\u0159\u00edt: d<sub>d<\/sub>=(d+x\u0394+Z<sub>min<\/sub>)<sub>0<\/sub><sup>+5<\/sup><sup>d<\/sup><sup>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/sup>&nbsp;(2-4)<\/p>\n\n\n\n<h6 class=\"wp-block-heading\"><strong>Zatemn\u011bn\u00ed.<\/strong><strong><\/strong><\/h6>\n\n\n\n<p class=\"wp-block-paragraph\">P\u0159edpokl\u00e1dejme, \u017ee velikost z\u00e1slepky z\u00e1slepky je D<sup>0<\/sup><sub>-A<\/sub>. Podle principu v\u00fdpo\u010dtu velikosti b\u0159itu je vzorec v\u00fdpo\u010dtu n\u00e1sleduj\u00edc\u00ed.<\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">Zem\u0159\u00edt: D<sub>d<\/sub>=(D-x\u0394)<sub>0<\/sub><sup>+\u03b4d<\/sup><sup>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<\/sup>&nbsp;(2-5)<\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">Pun\u010d: D<sub>p<\/sub>= (D-xA-Z<sub>min<\/sub>)<sup>0<\/sup><sub>-\u03b4p<\/sub>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2-6)<\/p>\n\n\n\n<h6 class=\"wp-block-heading\"><strong>St\u0159edov\u00e1 vzd\u00e1lenost.<\/strong><strong><\/strong><\/h6>\n\n\n\n<p class=\"wp-block-paragraph\">St\u0159edov\u00e1 vzd\u00e1lenost je rozm\u011br, kter\u00fd po opot\u0159eben\u00ed z\u016fst\u00e1v\u00e1 v podstat\u011b nezm\u011bn\u011bn. Ve stejn\u00e9m kroku je na obrobek vyra\u017eena vzd\u00e1lenost d\u00edry a vzd\u00e1lenost st\u0159edu d\u00edry konk\u00e1vn\u00edho modelu lze ur\u010dit podle n\u00e1sleduj\u00edc\u00edho vzorce.<\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">L<sub>d<\/sub>=L+1\/8 \u0394 (2-7)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ve vzorci (2-3) ~ vzorci (2-7):<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D, d-z\u00e1kladn\u00ed velikost st\u0159\u00edhac\u00edch a d\u011brovac\u00edch obrobk\u016f, mm;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D<sub>p<\/sub>, D<sub>d<\/sub>\u2014-vysek\u00e1vac\u00ed konvexn\u00ed a konk\u00e1vn\u00ed velikost \u0159ezn\u00e9 hrany, mm;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">d<sub>p<\/sub>, d<sub>d<\/sub>\u2014-d\u011brovac\u00ed konvexn\u00ed a konk\u00e1vn\u00ed velikost \u0159ezn\u00e9 hrany, mm;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">L<sub>d<\/sub>, L\u2014-jmenovit\u00e1 velikost st\u0159edov\u00e9 vzd\u00e1lenosti otvoru obrobku a st\u0159edov\u00e9 vzd\u00e1lenosti otvoru matrice, mm;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0394\u2014-tolerance obrobku, mm;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">5<sub>p<\/sub>, 5<sub>d<\/sub>\u2014-v\u00fdrobn\u00ed tolerance konvexn\u00edch a konk\u00e1vn\u00edch forem, tolerance razn\u00edku je odstran\u011bna a tolerance konk\u00e1vn\u00ed formy je p\u0159evzata. Obecn\u011b se vol\u00ed podle 1\/3~1\/4 tolerance sou\u010d\u00e1sti. Pro st\u0159\u00edh\u00e1n\u00ed d\u00edl\u016f s jednoduch\u00fdmi tvary (jako jsou kulat\u00e9 d\u00edly, \u010dtvercov\u00e9 d\u00edly atd.) lze kv\u016fli jednoduch\u00e9 v\u00fdrob\u011b a snadn\u00e9 p\u0159esnosti zvolit v\u00fdrobn\u00ed tolerance podle \u00farovn\u00ed IT8~IT6, nebo si prohl\u00e9dn\u011bte tabulku 1-7.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">X\u2014-Koeficient opot\u0159eben\u00ed, jeho hodnota by m\u011bla b\u00fdt mezi 0,5 a 1, co\u017e souvis\u00ed s p\u0159esnost\u00ed z\u00e1slepek. Lze jej p\u0159\u00edmo vybrat podle \u00farovn\u011b tolerance z\u00e1slepek nebo ur\u010dit podle tabulky 1-8.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Z<sub>min<\/sub>\u2014-Minim\u00e1ln\u00ed slep\u00e1 mezera.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\">Materi\u00e1l<\/td><td class=\"has-text-align-center\" data-align=\"center\">Z\u00e1kladn\u00ed velikost<\/td><td class=\"has-text-align-center\" data-align=\"center\">&nbsp;<\/td><td class=\"has-text-align-center\" data-align=\"center\">&nbsp;<\/td><td class=\"has-text-align-center\" data-align=\"center\">&nbsp;<\/td><td class=\"has-text-align-center\" data-align=\"center\">&nbsp;<\/td><td class=\"has-text-align-center\" data-align=\"center\">&nbsp;<\/td><td class=\"has-text-align-center\" data-align=\"center\">&nbsp;<\/td><td class=\"has-text-align-center\" data-align=\"center\">&nbsp;<\/td><td class=\"has-text-align-center\" data-align=\"center\">&nbsp;<\/td><td class=\"has-text-align-center\" data-align=\"center\">&nbsp;<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Tlou\u0161\u0165ka<\/td><td class=\"has-text-align-center\" data-align=\"center\">~10<\/td><td class=\"has-text-align-center\" data-align=\"center\">&nbsp;<\/td><td class=\"has-text-align-center\" data-align=\"center\">\uff1e10~50<\/td><td class=\"has-text-align-center\" data-align=\"center\">&nbsp;<\/td><td class=\"has-text-align-center\" data-align=\"center\">\uff1e50~100<\/td><td class=\"has-text-align-center\" data-align=\"center\">&nbsp;<\/td><td class=\"has-text-align-center\" data-align=\"center\">\uff1e100~150<\/td><td class=\"has-text-align-center\" data-align=\"center\">&nbsp;<\/td><td class=\"has-text-align-center\" data-align=\"center\">\uff1e150~200<\/td><td class=\"has-text-align-center\" data-align=\"center\">&nbsp;<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">t (mm)<\/td><td class=\"has-text-align-center\" data-align=\"center\">+5<sub>d<\/sub><\/td><td class=\"has-text-align-center\" data-align=\"center\">-\u03b4<sub>p<\/sub><\/td><td class=\"has-text-align-center\" data-align=\"center\">+5<sub>d<\/sub><\/td><td class=\"has-text-align-center\" data-align=\"center\">-\u03b4<sub>p<\/sub><\/td><td class=\"has-text-align-center\" data-align=\"center\">+5<sub>d<\/sub><\/td><td class=\"has-text-align-center\" data-align=\"center\">-\u03b4<sub>p<\/sub><\/td><td class=\"has-text-align-center\" data-align=\"center\">+5<sub>d<\/sub><\/td><td class=\"has-text-align-center\" data-align=\"center\">-\u03b4<sub>p<\/sub><\/td><td class=\"has-text-align-center\" data-align=\"center\">+5<sub>d<\/sub><\/td><td class=\"has-text-align-center\" data-align=\"center\">-\u03b4<sub>p<\/sub><\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">0.4<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.006<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.004<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.006<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.004<\/td><td class=\"has-text-align-center\" data-align=\"center\">___<\/td><td class=\"has-text-align-center\" data-align=\"center\">___<\/td><td class=\"has-text-align-center\" data-align=\"center\">___<\/td><td class=\"has-text-align-center\" data-align=\"center\">___<\/td><td class=\"has-text-align-center\" data-align=\"center\">___<\/td><td class=\"has-text-align-center\" data-align=\"center\">___<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">0.5<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.006<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.004<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.006<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.004<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.008<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.005<\/td><td class=\"has-text-align-center\" data-align=\"center\">___<\/td><td class=\"has-text-align-center\" data-align=\"center\">___<\/td><td class=\"has-text-align-center\" data-align=\"center\">___<\/td><td class=\"has-text-align-center\" data-align=\"center\">___<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">0.6<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.006<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.004<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.008<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.005<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.008<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.005<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.010<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.007<\/td><td class=\"has-text-align-center\" data-align=\"center\">___<\/td><td class=\"has-text-align-center\" data-align=\"center\">___<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">0.8<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.007<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.005<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.008<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.006<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.010<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.007<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.012<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.008<\/td><td class=\"has-text-align-center\" data-align=\"center\">___<\/td><td class=\"has-text-align-center\" data-align=\"center\">___<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">1.0<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.008<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.006<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.010<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.007<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.012<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.008<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.015<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.010<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.017<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.012<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">1.2<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.010<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.007<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.012<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.008<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.017<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.010<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.017<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.012<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.022<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.014<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">1.5<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.012<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.008<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.015<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.010<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.020<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.012<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.020<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.014<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.025<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.017<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">1.8<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.015<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.010<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.017<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.012<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.025<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.014<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.025<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.017<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.032<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.019<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">2.0<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.017<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.012<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.020<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.014<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.030<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.017<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.029<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.020<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.035<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.021<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">2.5<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.023<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.014<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.027<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.017<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.035<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.020<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.035<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.023<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.040<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.027<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">3.0<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.027<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.017<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.030<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.020<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.040<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.023<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.040<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.027<\/td><td class=\"has-text-align-center\" data-align=\"center\">+0.045<\/td><td class=\"has-text-align-center\" data-align=\"center\">-0.030<\/td><\/tr><\/tbody><\/table><figcaption><br>Tabulka 1-7 V\u00fdrobn\u00ed limitn\u00ed odchylka d\u011brovac\u00edch konvexn\u00edch a konk\u00e1vn\u00edch forem pravideln\u00e9ho tvaru<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\">Materi\u00e1l<\/td><td class=\"has-text-align-center\" data-align=\"center\">Nekruhov\u00fd obrobek x hodnota<\/td><td class=\"has-text-align-center\" data-align=\"center\">&nbsp;<\/td><td class=\"has-text-align-center\" data-align=\"center\">&nbsp;<\/td><td class=\"has-text-align-center\" data-align=\"center\">Kulat\u00fd obrobek x hodnota<\/td><td class=\"has-text-align-center\" data-align=\"center\">&nbsp;<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">Tlou\u0161\u0165ka<\/td><td class=\"has-text-align-center\" data-align=\"center\">1<\/td><td class=\"has-text-align-center\" data-align=\"center\">0.75<\/td><td class=\"has-text-align-center\" data-align=\"center\">0.5<\/td><td class=\"has-text-align-center\" data-align=\"center\">0.75<\/td><td class=\"has-text-align-center\" data-align=\"center\">0.5<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">t (mm)<\/td><td class=\"has-text-align-center\" data-align=\"center\">Tolerance obrobku \u0394(mm)<\/td><td class=\"has-text-align-center\" data-align=\"center\">&nbsp;<\/td><td class=\"has-text-align-center\" data-align=\"center\">&nbsp;<\/td><td class=\"has-text-align-center\" data-align=\"center\">&nbsp;<\/td><td class=\"has-text-align-center\" data-align=\"center\">&nbsp;<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">1<\/td><td class=\"has-text-align-center\" data-align=\"center\">\uff1c0,16<\/td><td class=\"has-text-align-center\" data-align=\"center\">0.17~0.35<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u22650,36<\/td><td class=\"has-text-align-center\" data-align=\"center\">\uff1c0,16<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u22650,16<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">1~2<\/td><td class=\"has-text-align-center\" data-align=\"center\">\uff1c0,20<\/td><td class=\"has-text-align-center\" data-align=\"center\">0.21~0.41<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u22650,42<\/td><td class=\"has-text-align-center\" data-align=\"center\">\uff1c0,20<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u22650,20<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">2~4<\/td><td class=\"has-text-align-center\" data-align=\"center\">\uff1c0,24<\/td><td class=\"has-text-align-center\" data-align=\"center\">0.25~0.49<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u22650,50<\/td><td class=\"has-text-align-center\" data-align=\"center\">\uff1c0,24<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u22650,24<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">\uff1e4<\/td><td class=\"has-text-align-center\" data-align=\"center\">\uff1c0,30<\/td><td class=\"has-text-align-center\" data-align=\"center\">0.31~0.59<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u22650,60<\/td><td class=\"has-text-align-center\" data-align=\"center\">\uff1c0,30<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u22650,30<\/td><\/tr><\/tbody><\/table><figcaption><br>Tabulka 1-8 Koeficient opot\u0159eben\u00ed x<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Tato metoda v\u00fdpo\u010dtu je vhodn\u00e1 pro kulat\u00e9 a pravideln\u00e9 tvarovan\u00e9 v\u00fdst\u0159i\u017eky. P\u0159i navrhov\u00e1n\u00ed by m\u011bly b\u00fdt rozm\u011bry b\u0159itu a v\u00fdrobn\u00ed tolerance vyzna\u010deny na v\u00fdkresech konvexn\u00edch a konk\u00e1vn\u00edch matric. Aby se zajistilo, \u017ee slep\u00e1 mezera bude v rozumn\u00e9m rozsahu, m\u011bl by b\u00fdt stanoven n\u00e1sleduj\u00edc\u00ed vzorec.<\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">|\u03b4<sub>p<\/sub>|+|\u03b4<sub>d<\/sub>|\u2264 Z<sub>max<\/sub>\u2013 Z<sub>min<\/sub>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2-8)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pokud v\u00fd\u0161e uveden\u00fd vzorec neplat\u00ed, p\u0159esnost v\u00fdroby formy by se m\u011bla zlep\u0161it, aby se sn\u00ed\u017eilo \u03b4<sub>d<\/sub>&nbsp;a 5<sub>p<\/sub>. Pokud je tedy tvar formy slo\u017eit\u00fd, tato metoda nen\u00ed vhodn\u00e1.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>P\u0159\u00edklad 2-1<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.harsle.com\/J23-Inclinable-Punching-Machine-pd6320164.html\" target=\"_blank\" rel=\"noopener\">D\u011brov\u00e1n\u00ed<\/a> spojovac\u00ed kus, jak je zn\u00e1zorn\u011bno na obr\u00e1zku 1-9. Materi\u00e1l zn\u00e1m\u00e9 sou\u010d\u00e1sti je Q235 a tlou\u0161\u0165ka materi\u00e1lu je t=0,5 mm. Vypo\u010d\u00edtejte rozm\u011bry a tolerance konvexn\u00edch a konk\u00e1vn\u00edch okrajov\u00fdch \u010d\u00e1st\u00ed vysek\u00e1vac\u00ed matrice.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0158e\u0161en\u00ed: Z obr\u00e1zku 1-9 je vid\u011bt, \u017ee tento d\u00edl je obecn\u00fdm d\u011brovac\u00edm a vysek\u00e1vac\u00edm d\u00edlem bez zvl\u00e1\u0161tn\u00edch po\u017eadavk\u016f a konvexn\u00ed a konk\u00e1vn\u00ed formy jsou vyr\u00e1b\u011bny odd\u011blen\u011b podle zp\u016fsobu v\u00fdm\u011bnn\u00e9ho zpracov\u00e1n\u00ed. Vn\u011bj\u0161\u00ed rozm\u011br \u03c636<sup>0<\/sup><sub>-0.62<\/sub>&nbsp;se z\u00edsk\u00e1 zaslepen\u00edm a vnit\u0159n\u00ed otvor o velikosti 2-\u03c66<sub>0<\/sub><sup>+0.12<\/sup>&nbsp;a velikost 18\u00b10,09 se z\u00edskaj\u00ed sou\u010dasn\u00fdm d\u011brov\u00e1n\u00edm.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"800\" height=\"713\" src=\"https:\/\/www.harslepress.com\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u5fae\u4fe1\u56fe\u7247_20210414145843-1.jpg\" alt=\"\" class=\"wd-lazy-fade wp-image-2154\" srcset=\"\" data-srcset=\"https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u5fae\u4fe1\u56fe\u7247_20210414145843-1.jpg 800w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u5fae\u4fe1\u56fe\u7247_20210414145843-1-300x267.jpg 300w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u5fae\u4fe1\u56fe\u7247_20210414145843-1-768x684.jpg 768w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u5fae\u4fe1\u56fe\u7247_20210414145843-1-13x12.jpg 13w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u5fae\u4fe1\u56fe\u7247_20210414145843-1-150x134.jpg 150w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption><br>Obr\u00e1zek 1-9 Sch\u00e9ma d\u00edl\u016f spojovac\u00edho kusu<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Ur\u010dete po\u010d\u00e1te\u010dn\u00ed mezeru, vyhledejte v tabulce Z<sub>min<\/sub>= 0,04 mm, Z<sub>max<\/sub>= 0,06 mm<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ur\u010dete koeficient opot\u0159eben\u00ed x, zkontrolujte tabulku d\u011brov\u00e1n\u00ed 2-\u03c66<sub>0<\/sub><sup>+0.12<\/sup>&nbsp;&nbsp;koeficient opot\u0159eben\u00ed x=0,75; zaclon\u011bn\u00ed \u03c636<sup>0<\/sup><sub>-0.62<\/sub>, koeficient opot\u0159eben\u00ed x=0,5.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00fdpo\u010det velikosti konvexn\u00ed a konk\u00e1vn\u00ed hrany d\u011brov\u00e1n\u00ed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pod\u00edvej se na st\u016fl, -\u03b4<sub>p<\/sub>=-0,004 mm, -5<sub>d<\/sub>=-0,006 mm.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Velikost ost\u0159\u00ed d\u011brova\u010de: d<sub>d<\/sub>=(d+x \u0394)<sup>0<\/sup><sub>-\u03b4<\/sub><sub>p<\/sub>=(6+0,75X0,12)<sup>0<\/sup><sub>-\u03b4<\/sub><sub>p<\/sub>=6.09<sup>0<\/sup><sub>-0.004<\/sub>mm<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Velikost \u0159ezn\u00e9 hrany: d<sub>d<\/sub>=(d+Z<sub>min<\/sub>)<sub>0<\/sub><sup>+5<\/sup><sup>d<\/sup>=(6.09+0.04) <sub>0<\/sub><sup>+5<\/sup><sup>d<\/sup>=6.13<sub>0<\/sub><sup>+0.006<\/sup>mm<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Zkontrolujte, |\u03b4<sub>p<\/sub>|+|\u03b4<sub>d<\/sub>|=0,004+0,006=0,01 mm. Z<sub>max<\/sub>-Z<sub>min<\/sub>=0,06-0,04 = 0,02 mm. Spl\u0148ujte po\u017eadavky |\u03b4<sub>p<\/sub>|+|\u03b4<sub>d<\/sub>|\u2264 Z<sub>max<\/sub>\u2013 Z<sub>min<\/sub>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00fdpo\u010det velikosti b\u0159itu vysek\u00e1v\u00e1n\u00ed konvexn\u00edch a konk\u00e1vn\u00edch \u0159ezn\u00fdch hran.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pod\u00edvejte se do tabulky -\u03b4<sub>p<\/sub>=0,004 mm, -5<sub>d<\/sub>= 0,006 mm.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Velikost \u0159ezn\u00e9 hrany: D<sub>d<\/sub>=(Dx \u0394)<sub>0<\/sub><sup>+5<\/sup><sup>d<\/sup>=(36-0,5X0,62)<sub>0<\/sub><sup>+5<\/sup><sup>d<\/sup>=35.69<sub>0<\/sub><sup>+0.006<\/sup>mm<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Velikost ost\u0159\u00ed d\u011brova\u010de: D<sub>p<\/sub>= (D<sub>d<\/sub>-Z<sub>min<\/sub>)<sup>0<\/sup><sub>-\u03b4<\/sub><sub>p<\/sub>=(35.69-0.04)<sup>0<\/sup><sub>-\u03b4<\/sub><sub>p<\/sub>=35.65<sup>0<\/sup><sub>-0.004<\/sub>mm<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Zkontrolujte, |\u03b4<sub>p<\/sub>|+|\u03b4<sub>d<\/sub>|=0,004+0,006, Z<sub>max<\/sub>-Z<sub>min<\/sub>=0,06-0,04 = 0,02 mm. Spl\u0148ujte po\u017eadavky |\u03b4<sub>p<\/sub>|+|\u03b4<sub>d<\/sub>|\u2264 Z<sub>max<\/sub>\u2013 Z<sub>min<\/sub>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00fdpo\u010det st\u0159edov\u00e9 vzd\u00e1lenosti.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">L<sub>d<\/sub>=L\u00b1\u0394 =18\u00b10,125X2X0,09=18\u00b10,023 mm<\/p>\n\n\n\n<h5 class=\"wp-block-heading\"><strong>Koordinovan\u00e1 metoda zpracov\u00e1n\u00ed razn\u00edku a matrice.<\/strong><\/h5>\n\n\n\n<p class=\"wp-block-paragraph\">Kdy\u017e se konvexn\u00ed a konk\u00e1vn\u00ed formy zpracov\u00e1vaj\u00ed odd\u011blen\u011b, aby se zajistila ur\u010dit\u00e1 hodnota mezery mezi konvexn\u00ed a konk\u00e1vn\u00ed formou, mus\u00ed b\u00fdt p\u0159\u00edsn\u011b omezena v\u00fdrobn\u00ed tolerance razn\u00edku. Proto je v\u00fdroba razn\u00edku obt\u00ed\u017en\u00e1. Pro d\u011brov\u00e1n\u00ed tenk\u00fdch materi\u00e1l\u016f (vzhledem k mal\u00e9mu rozd\u00edlu mezi Z<sub>max<\/sub>&nbsp;a Z<sub>min<\/sub>), vysek\u00e1vac\u00edch z\u00e1pustek pro tvarov\u011b slo\u017eit\u00e9 obrobky a vysek\u00e1vac\u00edch z\u00e1pustek pro kusovou v\u00fdrobu, \u010dasto se pou\u017e\u00edv\u00e1 zp\u016fsob kooperativn\u00edho zpracov\u00e1n\u00ed pr\u016fbojn\u00edk a z\u00e1pustka.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Zp\u016fsob spolupr\u00e1ce razn\u00edku a konk\u00e1vn\u00ed formy spo\u010d\u00edv\u00e1 v tom, \u017ee se nejprve vyrob\u00ed referen\u010dn\u00ed d\u00edl (d\u011brovac\u00ed nebo sami\u010d\u00ed forma) podle konstruk\u010dn\u00ed velikosti a pot\u00e9 se p\u0159iprav\u00ed dal\u0161\u00ed d\u00edl podle skute\u010dn\u00e9 velikosti referen\u010dn\u00edho d\u00edlu podle minim\u00e1ln\u00ed p\u0159im\u011b\u0159en\u00e9 mezery. Charakteristick\u00fdm rysem tohoto zp\u016fsobu zpracov\u00e1n\u00ed je, \u017ee p\u0159\u00edpravou je zaru\u010dena mezera formy, proces je relativn\u011b jednoduch\u00fd, nen\u00ed nutn\u00e9 kontrolovat podm\u00ednky |\u03b4<sub>p<\/sub>|+|\u03b4<sub>d<\/sub>|\u2264 Z<sub>max<\/sub>\u2013 Z<sub>min<\/sub>a m\u016f\u017ee tak\u00e9 zv\u011bt\u0161it v\u00fdrobn\u00ed toleranci referen\u010dn\u00edch d\u00edl\u016f, co\u017e usnad\u0148uje v\u00fdrobu. P\u0159i n\u00e1vrhu by m\u011bly b\u00fdt podrobn\u011b vyzna\u010deny rozm\u011bry b\u0159itu a v\u00fdrobn\u00ed tolerance referen\u010dn\u00edch d\u00edl\u016f a na odpov\u00eddaj\u00edc\u00edch d\u00edlech jsou vyzna\u010deny pouze jmenovit\u00e9 rozm\u011bry a \u017e\u00e1dn\u00e9 tolerance se nezaznamen\u00e1vaj\u00ed. M\u011bl by b\u00fdt ozna\u010den pouze v\u00fdkres: \u201eB\u0159it konvexn\u00ed (konk\u00e1vn\u00ed) matrice je jako konk\u00e1vn\u00ed (konvexn\u00ed) Skute\u010dn\u00e1 velikost b\u0159itu formy je p\u0159ipravena tak, aby byla zaji\u0161t\u011bna minim\u00e1ln\u00ed oboustrann\u00e1 p\u0159im\u011b\u0159en\u00e1 hodnota mezery Z<sub>min<\/sub>\u201c. V sou\u010dasn\u00e9 dob\u011b v\u011bt\u0161ina tov\u00e1ren obecn\u011b p\u0159ij\u00edm\u00e1 tento zp\u016fsob zpracov\u00e1n\u00ed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">U vysek\u00e1vac\u00edch d\u00edl\u016f se slo\u017eit\u00fdmi tvary jsou velikostn\u00ed vlastnosti ka\u017ed\u00e9ho d\u00edlu odli\u0161n\u00e9 a tak\u00e9 podm\u00ednky opot\u0159eben\u00ed razn\u00edku a matrice jsou odli\u0161n\u00e9. Velikost \u0159ezn\u00e9 hrany referen\u010dn\u00ed sou\u010d\u00e1sti je proto t\u0159eba vypo\u010d\u00edtat r\u016fzn\u00fdmi metodami.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Obr\u00e1zek 1-10 (a) ukazuje<a href=\"https:\/\/www.harsle.com\/J23-Inclinable-Punching-Machine-pd6320164.html\" target=\"_blank\" rel=\"noopener\"> zaslepovac\u00ed d\u00edl<\/a>. Jako z\u00e1kladn\u00ed \u010d\u00e1st v\u00fdpo\u010dtu by m\u011bla b\u00fdt pou\u017eita matrice. Opot\u0159eben\u00ed matrice se v\u0161ak d\u011bl\u00ed do t\u0159\u00ed kategori\u00ed: Prvn\u00ed typ je zv\u011bt\u0161en\u00e1 velikost matrice po opot\u0159eben\u00ed (na obr\u00e1zku) Velikost typu A); Druh\u00fdm typem je zmen\u0161en\u00e1 velikost po opot\u0159eben\u00ed raznice (velikost B na obr\u00e1zku); T\u0159et\u00edm typem je velikost, kter\u00e1 z\u016fst\u00e1v\u00e1 nezm\u011bn\u011bna po opot\u0159eben\u00ed raznice (velikost C na obr\u00e1zku). Obr\u00e1zek 1-10(b) ukazuje d\u011brovac\u00ed \u010d\u00e1st. Jako referen\u010dn\u00ed d\u00edl by m\u011bl b\u00fdt pou\u017eit pr\u016fbojn\u00edk. Podle opot\u0159eben\u00ed razn\u00edku lze rozm\u011bry rozd\u011blit do t\u0159\u00ed kategori\u00ed: A, B a C podle zp\u016fsobu zn\u00e1zorn\u011bn\u00e9ho na obr\u00e1zku. P\u0159i opot\u0159ebov\u00e1n\u00ed razn\u00edku je zv\u011bt\u0161en\u00ed nebo zmen\u0161en\u00ed jeho velikosti tak\u00e9 v souladu se z\u00e1konem, \u017ee velikost typu A se zv\u011bt\u0161uje, velikost typu B se zmen\u0161uje a velikost typu C z\u016fst\u00e1v\u00e1 nezm\u011bn\u011bna. T\u00edmto zp\u016fsobem lze pro vysek\u00e1v\u00e1n\u00ed d\u00edl\u016f a d\u011brov\u00e1n\u00ed d\u00edl\u016f se slo\u017eit\u00fdmi tvary vypo\u010d\u00edtat velikost \u0159ezn\u00e9 hrany referen\u010dn\u00edho d\u00edlu podle n\u00e1sleduj\u00edc\u00edho vzorce.<\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">Velikost typu A: A=(A<sub>max<\/sub>-x \u0394)<sub>0<\/sub><sup>+5<\/sup><\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">Velikost typu B: B=(B<sub>min<\/sub>+x \u0394)<sup>0<\/sup><sub>-\u03b4<\/sub><\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\">Velikost typu C: C=C\u00b15\/2<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ve vzorci A, B, C-z\u00e1kladn\u00ed velikost referen\u010dn\u00edch d\u00edl\u016f, mm;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A<sub>max<\/sub><sub>&nbsp;<\/sub>\u2014- Maxim\u00e1ln\u00ed mezn\u00ed hodnota rozm\u011br\u016f z\u00e1slepek typu A, mm;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B<sub>min<\/sub><sub>&nbsp;<\/sub>\u2014- Minim\u00e1ln\u00ed mezn\u00ed hodnota velikosti z\u00e1slepek typu B, mm;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u03b4 \u2014- Tolerance v\u00fdroby formy, mm.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"800\" height=\"276\" src=\"https:\/\/www.harslepress.com\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u5fae\u4fe1\u56fe\u7247_202104141458431-1.jpg\" alt=\"\" class=\"wd-lazy-fade wp-image-2156\" srcset=\"\" data-srcset=\"https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u5fae\u4fe1\u56fe\u7247_202104141458431-1.jpg 800w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u5fae\u4fe1\u56fe\u7247_202104141458431-1-150x52.jpg 150w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u5fae\u4fe1\u56fe\u7247_202104141458431-1-300x104.jpg 300w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u5fae\u4fe1\u56fe\u7247_202104141458431-1-768x265.jpg 768w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u5fae\u4fe1\u56fe\u7247_202104141458431-1-600x207.jpg 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption><br>Obr\u00e1zek 1-10 Klasifikace velikosti vysek\u00e1v\u00e1n\u00ed a d\u011brov\u00e1n\u00ed<\/figcaption><\/figure>\n\n\n\n<ul class=\"wp-block-list\"><li>P\u0159\u00edklad 2-2<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Z\u00e1slepka zobrazen\u00e1 na obr\u00e1zku 1-11, materi\u00e1l je ocel \u010d. 10, tlou\u0161\u0165ka materi\u00e1lu je 1 mm a rozm\u011bry a=80<sup>0<\/sup><sub>-0.42<\/sub>mm, b=40<sup>0<\/sup><sub>-.034<\/sub>mm, c=35<sup>0<\/sup><sub>-.034<\/sub>mm, d=22\u00b10,14 mm, e=15<sup>0<\/sup><sub>-.012<\/sub>mm. Pokuste se ur\u010dit velikost a toleranci razn\u00edku a hrany raznice raznice.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"800\" height=\"450\" src=\"https:\/\/www.harslepress.com\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u5fae\u4fe1\u56fe\u7247_202104141458432.jpg\" alt=\"\" class=\"wd-lazy-fade wp-image-2157\" srcset=\"\" data-srcset=\"https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u5fae\u4fe1\u56fe\u7247_202104141458432.jpg 800w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u5fae\u4fe1\u56fe\u7247_202104141458432-150x84.jpg 150w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u5fae\u4fe1\u56fe\u7247_202104141458432-300x169.jpg 300w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u5fae\u4fe1\u56fe\u7247_202104141458432-768x432.jpg 768w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u5fae\u4fe1\u56fe\u7247_202104141458432-600x338.jpg 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption><br>Obr\u00e1zek 1-11 V\u00fdkres d\u00edl\u016f z\u00e1slepek<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u0158e\u0161en\u00ed: The <a href=\"https:\/\/www.harslepress.com\/cs\/product\/100t-punching-machine-steel-hinge-making-automatic-power-press-production-line-foil-container-making-machine\/\">zatemn\u011bn\u00ed<\/a> \u010c\u00e1st je z\u00e1\u0159ezov\u00e1 \u010d\u00e1st a sami\u010d\u00ed forma je vybr\u00e1na jako referen\u010dn\u00ed \u010d\u00e1st a je vyrobena podle zp\u016fsobu spolupr\u00e1ce s vnit\u0159n\u00ed formou a vnit\u0159n\u00ed formou. V\u00fdpo\u010det pot\u0159ebuje pouze ur\u010dit velikost \u0159ezn\u00e9 hrany a v\u00fdrobn\u00ed toleranci vysek\u00e1vac\u00ed matrice a velikost d\u011brovac\u00ed hrany se vyr\u00e1b\u00ed podle skute\u010dn\u00e9 velikosti matrice, aby byla zaji\u0161t\u011bna co nejmen\u0161\u00ed v\u016fle.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ur\u010dete po\u010d\u00e1te\u010dn\u00ed mezeru: Z<sub>min<\/sub>= 0,10 mm, Z<sub>max<\/sub>= 0,13 mm p\u0159i pohledu na tabulku.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ur\u010dete koeficient opot\u0159eben\u00ed x: vyhledejte v tabulce a=80<sup>0<\/sup><sub>-0.42<\/sub>, koeficient opot\u0159eben\u00ed x=0,5; velikost e=15<sup>0<\/sup><sub>-0.12<\/sub>mm, koeficient opot\u0159eben\u00ed x=10; ostatn\u00ed koeficienty opot\u0159eben\u00ed lis x=0,75.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Velikost typu A: a<sub>d<\/sub>=(a-x\u0394)<sub>0<\/sub><sup>+5<\/sup>=(80-0,5X0,042)<sub>0<\/sub><sup>+0.42\/4<\/sup>=79.79<sub>0<\/sub><sup>+0.105<\/sup>(mm)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">b<sub>d<\/sub>=(b-x\u0394)<sub>0<\/sub><sup>+5<\/sup>=(40-0,75X0,34)<sub>0<\/sub><sup>+0.<\/sup><sup>34<\/sup><sup>\/4<\/sup>=39.75<sub>0<\/sub><sup>+0.<\/sup><sup>08<\/sup><sup>5<\/sup>(mm)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C<sub>d<\/sub>=(c-x\u0394)<sub>0<\/sub><sup>+5<\/sup>=(35-0,14+0,75X0,34)<sub>0<\/sub><sup>+0.<\/sup><sup>34<\/sup><sup>\/4<\/sup>=34.75<sub>0<\/sub><sup>+0.<\/sup><sup>08<\/sup><sup>5<\/sup>(mm)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Velikost typu B: d<sub>d<\/sub>= (d<sub>min<\/sub>+x\u0394)<sup>0<\/sup><sub>-\u03b4<\/sub>=(22-0,14+0,75X0,28)<sup>0<\/sup><sub>-0.28\/4<\/sub>=22.07<sup>0<\/sup><sub>-0.<\/sub><sub>070<\/sub>(mm)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Velikost C: Kdy\u017e je velikost C s konstantn\u00edm opot\u0159eben\u00edm ozna\u010dena jako jednosm\u011brn\u00e1 odchylka, existuj\u00ed dva p\u0159\u00edpady, C<sup>0<\/sup><sub>-A<\/sub>&nbsp;a C<sub>0<\/sub><sup>+A<\/sup>. V tomto okam\u017eiku se do rovnice vezme mezn\u00ed pr\u016fm\u011brn\u00e1 velikost C a pot\u00e9<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img decoding=\"async\" src=\"https:\/\/www.harslepress.com\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/16188996811.png\" alt=\"\" class=\"wd-lazy-fade wp-image-2158\" width=\"800\" srcset=\"\" data-srcset=\"https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/16188996811.png 428w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/16188996811-300x32.png 300w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/16188996811-18x2.png 18w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/16188996811-150x16.png 150w\" sizes=\"(max-width: 428px) 100vw, 428px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Z\u00e1kladn\u00ed velikost <a href=\"https:\/\/www.harslepress.com\/cs\/product\/100t-punching-machine-steel-hinge-making-automatic-power-press-production-line-foil-container-making-machine\/\">d\u011brova\u010d<\/a> je stejn\u00fd jako z\u00e1kladn\u00ed rozm\u011br konk\u00e1vn\u00ed formy, respektive 79,79 mm, 39,75 mm, 34,75 mm, 26,07 mm, 14,94 mm. Nen\u00ed nutn\u00e9 zna\u010dit odchylku velikosti, ale je t\u0159eba ji poznamenat ve form\u011b: skute\u010dn\u00e1 velikost \u0159ezn\u00e9 hrany razn\u00edku Je formulov\u00e1na s vysek\u00e1vac\u00ed matric\u00ed, aby se zajistilo, \u017ee mezera mezi dv\u011bma stranami je 0,10~0,13 mm. Rozm\u011bry raznice a razn\u00edku jsou uvedeny na obr\u00e1zku 1-12.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"800\" height=\"372\" src=\"https:\/\/www.harslepress.com\/wp-content\/themes\/woodmart\/images\/lazy.svg\" data-src=\"https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u5fae\u4fe1\u56fe\u7247_202104141458433.jpg\" alt=\"\" class=\"wd-lazy-fade wp-image-2159\" srcset=\"\" data-srcset=\"https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u5fae\u4fe1\u56fe\u7247_202104141458433.jpg 800w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u5fae\u4fe1\u56fe\u7247_202104141458433-150x70.jpg 150w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u5fae\u4fe1\u56fe\u7247_202104141458433-300x140.jpg 300w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u5fae\u4fe1\u56fe\u7247_202104141458433-768x357.jpg 768w, https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/\u5fae\u4fe1\u56fe\u7247_202104141458433-600x279.jpg 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption><br>Obr\u00e1zek 1-12 Velikost raznice a razn\u00edku<\/figcaption><\/figure>\n\n\n\n<ul class=\"wp-block-list\"><li>Princip v\u00fdb\u011bru zp\u016fsobu v\u00fdroby.<\/li><\/ul>\n\n\n\n<h6 class=\"wp-block-heading\"><strong>1. Kdy\u017e m\u00e1 z\u00e1\u0159ezov\u00e1 \u010d\u00e1st slo\u017eit\u00fd tvar (velk\u00fd po\u010det rozm\u011br\u016f), hrana matrice je vyrobena odpov\u00eddaj\u00edc\u00edm zp\u016fsobem zpracov\u00e1n\u00ed.<\/strong><strong><\/strong><\/h6>\n\n\n\n<h6 class=\"wp-block-heading\"><strong>2. Kdy\u017e se <a href=\"https:\/\/www.harsle.com\/J23-Inclinable-Punching-Machine-pd6320164.html\" target=\"_blank\" rel=\"noopener\">zatemn\u011bn\u00ed <\/a>d\u00edl je jednoduch\u00e9ho tvaru (mal\u00fd po\u010det rozm\u011br\u016f), zvolte zp\u016fsob v\u00fdroby b\u0159itu podle n\u00e1sleduj\u00edc\u00edho diskriminantu.<\/strong><\/h6>\n\n\n\n<p class=\"wp-block-paragraph\">Kdy\u017e \u03b4<sub>p<\/sub>&nbsp;+ 5<sub>d<\/sub>&gt; Z<sub>max<\/sub>\u2013 Z<sub>min<\/sub>, hrana matrice je vyrobena odpov\u00eddaj\u00edc\u00edm zp\u016fsobem zpracov\u00e1n\u00ed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kdy\u017e \u03b4<sub>p<\/sub>&nbsp;+ 5<sub>d<\/sub>&nbsp;\u2264 Z<sub>max<\/sub>\u2013 Z<sub>min<\/sub>\u0159ezn\u00e1 hrana matrice je vyrobena samostatn\u00fdm zp\u016fsobem zpracov\u00e1n\u00ed.<\/p>","protected":false},"excerpt":{"rendered":"<p>Za norm\u00e1ln\u00edch pracovn\u00edch podm\u00ednek vysek\u00e1v\u00e1n\u00ed vznikaj\u00ed smykov\u00e9 trhliny zp\u016fsoben\u00e9 okrajem razn\u00edku a smykov\u00e9 trhliny vznikl\u00e9<\/p>","protected":false},"author":4,"featured_media":2202,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[606,610,609],"class_list":["post-2007","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-punching-machine","tag-punching","tag-punching-gap","tag-punching-section"],"jetpack_featured_media_url":"https:\/\/www.harslepress.com\/wp-content\/uploads\/2021\/04\/16190672721.jpg","_links":{"self":[{"href":"https:\/\/www.harslepress.com\/cs\/wp-json\/wp\/v2\/posts\/2007","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.harslepress.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.harslepress.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.harslepress.com\/cs\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.harslepress.com\/cs\/wp-json\/wp\/v2\/comments?post=2007"}],"version-history":[{"count":0,"href":"https:\/\/www.harslepress.com\/cs\/wp-json\/wp\/v2\/posts\/2007\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.harslepress.com\/cs\/wp-json\/wp\/v2\/media\/2202"}],"wp:attachment":[{"href":"https:\/\/www.harslepress.com\/cs\/wp-json\/wp\/v2\/media?parent=2007"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.harslepress.com\/cs\/wp-json\/wp\/v2\/categories?post=2007"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.harslepress.com\/cs\/wp-json\/wp\/v2\/tags?post=2007"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}