[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.lixus.cz\/jak-vyrobit-velmi-presny-ale-slozity-otvor\/#Article","mainEntityOfPage":"https:\/\/www.lixus.cz\/jak-vyrobit-velmi-presny-ale-slozity-otvor\/","headline":"Jak vyrobit velmi p\u0159esn\u00fd, ale slo\u017eit\u00fd otvor","name":"Jak vyrobit velmi p\u0159esn\u00fd, ale slo\u017eit\u00fd otvor","description":"Stroj\u00edrenstv\u00ed se n\u011bkdy op\u00edr\u00e1 o speci\u00e1ln\u00ed n\u00e1stroje, o nich\u017e byste ani nep\u0159edpokl\u00e1dali, \u017ee maj\u00ed n\u011bco spole\u010dn\u00e9ho se stroja\u0159inou. Mnoz\u00ed z v\u00e1s si toti\u017e pod pojmem \u201estroj\u00edrenstv\u00ed\u201c p\u0159edstav\u00ed ot\u00e1\u010den\u00ed obrobk\u016f na soustruhu a obr\u00e1b\u011bn\u00ed soustru\u017enick\u00fdm no\u017eem, vrt\u00e1n\u00ed otvor\u016f na sloupov\u00e9 vrta\u010dce, fr\u00e9zov\u00e1n\u00ed dr\u00e1\u017eek v\u00e1lcovou fr\u00e9zou nebo brou\u0161en\u00ed povrchu jemn\u00fdm brusn\u00fdm kotou\u010dem, a jestli\u017ee zaslechnou v\u00fdraz \u201eprotahovac\u00ed […]","datePublished":"2024-06-12","dateModified":"2024-06-12","author":{"@type":"Person","@id":"https:\/\/www.lixus.cz\/author\/#Person","name":"","url":"https:\/\/www.lixus.cz\/author\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/70b0b0c6ef7dca5d65c935edece415df3e99a7281ef835a281ae62fb4236351b?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/70b0b0c6ef7dca5d65c935edece415df3e99a7281ef835a281ae62fb4236351b?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"lixus.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.lixus.cz\/wp-content\/uploads\/house-1407562_640_4.jpg","url":"https:\/\/www.lixus.cz\/wp-content\/uploads\/house-1407562_640_4.jpg","height":0,"width":0},"url":"https:\/\/www.lixus.cz\/jak-vyrobit-velmi-presny-ale-slozity-otvor\/","about":["Nakupov\u00e1n\u00ed"],"wordCount":396,"articleBody":"      Stroj\u00edrenstv\u00ed se n\u011bkdy op\u00edr\u00e1 o speci\u00e1ln\u00ed n\u00e1stroje, o nich\u017e byste ani nep\u0159edpokl\u00e1dali, \u017ee maj\u00ed n\u011bco spole\u010dn\u00e9ho se stroja\u0159inou. Mnoz\u00ed z v\u00e1s si toti\u017e pod pojmem \u201estroj\u00edrenstv\u00ed\u201c p\u0159edstav\u00ed ot\u00e1\u010den\u00ed obrobk\u016f na soustruhu a obr\u00e1b\u011bn\u00ed soustru\u017enick\u00fdm no\u017eem, vrt\u00e1n\u00ed otvor\u016f na sloupov\u00e9 vrta\u010dce, fr\u00e9zov\u00e1n\u00ed dr\u00e1\u017eek v\u00e1lcovou fr\u00e9zou nebo brou\u0161en\u00ed povrchu jemn\u00fdm brusn\u00fdm kotou\u010dem, a jestli\u017ee zaslechnou v\u00fdraz \u201eprotahovac\u00ed trn\u201c, mohou se domn\u00edvat, \u017ee je to n\u011bjak\u00fd vtip, studentsk\u00fd \u017eert\u00edk, kter\u00fd se sna\u017e\u00ed za\u0159adit n\u011bjak\u00fd ostr\u00fd zahradnick\u00fd trn mezi stroj\u00edrensk\u00e9 n\u00e1stroje.Protahovac\u00ed trn opravdu nen\u00ed ani zahradnick\u00e9, ani jin\u00e9 zem\u011bd\u011blsk\u00e9 n\u00e1\u0159ad\u00ed, je to skute\u010dn\u00fd n\u00e1stroj pro v\u00fdrobu zpravidla slo\u017eit\u00fdch vnit\u0159n\u00edch tvar\u016f, kter\u00e9 byste nedok\u00e1zali vyr\u00e1b\u011bt jinak. Nap\u0159\u00edklad si p\u0159edstavte, \u017ee v\u00e1m n\u011bkdo zad\u00e1 do v\u00fdroby zhotoven\u00ed otvoru ve tvaru sedmic\u00edp\u00e9 hv\u011bzdy. Ostr\u00e9 geometrick\u00e9 \u00fahly v jednotliv\u00fdch paprsc\u00edch \u201ehv\u011bzdy\u201c byste ni\u010d\u00edm jin\u00fdm nevyrobili. Princip protahov\u00e1n\u00ed funguje tak, \u017ee se nejprve v obrobku p\u0159edvrt\u00e1 otvor, kter\u00fdm se pot\u00e9 postupn\u011b protahuje trn. Ten m\u00e1 tvar dlouh\u00e9 ozuben\u00e9 ty\u010de a ka\u017ed\u00fd zub postupn\u011b odeb\u00edr\u00e1 z materi\u00e1lu t\u0159\u00edsku. Zuby jsou odstup\u0148ovan\u00e9 tak, aby ka\u017ed\u00fd odebral jen mal\u00fd pod\u00edl t\u0159\u00edsek a fin\u00e1ln\u00ed posledn\u00ed zuby ji\u017e doc\u00edl\u00ed po\u017eadovan\u00e9ho obr\u00e1b\u011bn\u00e9ho tvaru. Jedn\u00edm z praktick\u00fdch p\u0159\u00edklad\u016f vyu\u017eit\u00ed protahovac\u00edch trn\u016f jsou patentn\u00ed dve\u0159n\u00ed z\u00e1mky, neexistuje \u017e\u00e1dn\u00fd jin\u00fd n\u00e1stroj, kter\u00fdm by bylo mo\u017eno vyrobit tak slo\u017eit\u00fd vnit\u0159n\u00ed otvor. Bez protahovac\u00edho trnu bychom uzamykali dve\u0159e st\u00e1le jen klasick\u00fdmi kl\u00ed\u010di, a otev\u0159en\u00ed takov\u00e9ho z\u00e1mku nen\u00ed pro zku\u0161en\u00e9ho kasa\u0159e \u017e\u00e1dn\u00fd probl\u00e9m.Jak ji\u017e mo\u017en\u00e1 tu\u0161\u00edte, zhotovit protahovac\u00ed trn nen\u00ed jednoduch\u00e9, jsou to velmi drah\u00e9 n\u00e1stroje, a proto se tak\u00e9 uplatn\u00ed pouze v s\u00e9riov\u00e9 v\u00fdrob\u011b, aby se v\u00fdrobn\u00ed n\u00e1klady zaplatily v po\u010dtu prodan\u00fdch kus\u016f v\u00fdrobk\u016f. Po\u010det prodan\u00fdch dve\u0159n\u00edch z\u00e1mk\u016f pak d\u00e1v\u00e1 protahovac\u00edm trn\u016fm tohoto typu vysloven\u011b zelenou.                                                                                                                                                                                                                                                                                                                                                                                          3.7\/5 - (6 votes)        "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Jak vyrobit velmi p\u0159esn\u00fd, ale slo\u017eit\u00fd otvor","item":"https:\/\/www.lixus.cz\/jak-vyrobit-velmi-presny-ale-slozity-otvor\/#breadcrumbitem"}]}]