[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.rep-checa.cz\/strojni-protahovani\/#Article","mainEntityOfPage":"https:\/\/www.rep-checa.cz\/strojni-protahovani\/","headline":"Strojn\u00ed protahov\u00e1n\u00ed","name":"Strojn\u00ed protahov\u00e1n\u00ed","description":"Protahov\u00e1n\u00ed je \u010dasto pou\u017e\u00edvan\u00fd proces, kdy za pomoc\u00ed speci\u00e1ln\u00edho n\u00e1stroje vyr\u00e1b\u00edme jist\u00fd tvar obrobku. N\u00e1stroje jsou v sad\u011b nebo jeden odstup\u0148ovan\u00fd Strojn\u00ed protahov\u00e1n\u00ed V\u00fdroba r\u016fzn\u00fdch tvar\u016f T\u0159eba takov\u00e1 dr\u00e1\u017eka pro pero v kotou\u010di je nekruhov\u00fd tvar, co\u017e je trochu probl\u00e9m, proto\u017ee nem\u016f\u017eeme vyu\u017e\u00edt klasickou metodu jako je t\u0159eba vrt\u00e1n\u00ed. U n\u011bj se toti\u017e ot\u00e1\u010d\u00ed n\u00e1stroj […]","datePublished":"2021-03-19","dateModified":"2023-05-03","author":{"@type":"Person","@id":"https:\/\/www.rep-checa.cz\/author\/#Person","name":"","url":"https:\/\/www.rep-checa.cz\/author\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/7b822bed19dfbc78d1cf42b3649cc2489d12c54b7aef64ae719c01ed9f13d563?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/7b822bed19dfbc78d1cf42b3649cc2489d12c54b7aef64ae719c01ed9f13d563?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"rep-checa.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.rep-checa.cz\/wp-content\/uploads\/pr%C3%A1ce%20s%20kovem_1.jpg","url":"https:\/\/www.rep-checa.cz\/wp-content\/uploads\/pr%C3%A1ce%20s%20kovem_1.jpg","height":0,"width":0},"url":"https:\/\/www.rep-checa.cz\/strojni-protahovani\/","about":["V\u00fdrobky"],"wordCount":451,"articleBody":"        Protahov\u00e1n\u00ed je \u010dasto pou\u017e\u00edvan\u00fd proces, kdy za pomoc\u00ed speci\u00e1ln\u00edho n\u00e1stroje vyr\u00e1b\u00edme jist\u00fd tvar obrobku. N\u00e1stroje jsou v sad\u011b nebo jeden odstup\u0148ovan\u00fdStrojn\u00ed protahov\u00e1n\u00edV\u00fdroba r\u016fzn\u00fdch tvar\u016f T\u0159eba takov\u00e1 dr\u00e1\u017eka pro pero v kotou\u010di je nekruhov\u00fd tvar, co\u017e je trochu probl\u00e9m, proto\u017ee nem\u016f\u017eeme vyu\u017e\u00edt klasickou metodu jako je t\u0159eba vrt\u00e1n\u00ed. U n\u011bj se toti\u017e ot\u00e1\u010d\u00ed n\u00e1stroj v jedn\u00e9 ose, a proto\u017e je v\u00fdsledkem kruhov\u00fd tvar. Pro tyto nekruhov\u00e9 mus\u00edme tedy zvolit jinou technologie, kter\u00e1 n\u00e1m zajist\u00ed klidn\u011b s\u00e9riovou v\u00fdrobu v\u00fdhodnou tak\u00e9 z ekonomick\u00e9ho hlediska. T\u00edm je potla\u010dov\u00e1n\u00ed, o kter\u00e9 se star\u00e1 stejnojmenn\u00fd stoj s n\u00e1zvem protahova\u010dka.Jeho \u00fakolem je p\u016fsobit na n\u00e1stroj tlakem, aby byla zaji\u0161t\u011bna jeho dostate\u010dn\u00e1 s\u00edla k potla\u010den\u00ed dan\u00e9ho tvaru. Tato technologie m\u00e1 krom\u011b produktivity tak\u00e9 p\u0159ednost v p\u0159esnosti a kvalit\u011b povrchu, tak\u017ee mnohdy po prota\u017een\u00ed je u\u017e dan\u00fd prvek hotov\u00fd a my s n\u00edm nemus\u00edme nic d\u011blat, co\u017e se n\u00e1m samoz\u0159ejm\u011b hod\u00ed. Pohon stoje b\u00fdv\u00e1 v\u011bt\u0161inou zaji\u0161t\u011bn hydraulicky, proto\u017ee hydraulika um\u00ed zajisti velkou s\u00edlu v tlaku, jen\u017e je mnohdy k potla\u010dov\u00e1n\u00ed zapot\u0159eb\u00ed. Nen\u00ed probl\u00e9m p\u0159i pou\u017e\u00edv\u00e1n\u00ed v s\u00e9riov\u00e9 v\u00fdrob\u011b.N\u00e1strojeN\u00e1stroje pro tuto metodu rozhodn\u011b nejsou jen tak ledajak\u00e9, proto\u017ee mus\u00ed m\u00edt jist\u00fd tvar a geometrii b\u0159it\u016f, aby proces prob\u00edhal, jak m\u00e1. Geometrie protahovac\u00edho trnu I-nastroje.cz se d\u011bl\u00ed podle pot\u0159ebn\u00e9ho tvaru, kdy krom\u011b oby\u010dejn\u00e9 dr\u00e1tky m\u00e1me nap\u0159\u00edklad \u0161estihran, \u010dtverec a tak\u00e9 speci\u00e1ln\u00ed tvary. Materi\u00e1l je odeb\u00edr\u00e1n\u00ed p\u011bkn\u011b postupn\u011b v form\u011b t\u0159\u00edsky, o co\u017e se star\u00e1 v\u011bt\u0161inou jeden n\u00e1stroj. Ten m\u00e1 toti\u017e p\u0159esn\u011b odstup\u0148ovan\u00e9 b\u0159ity, co\u017e n\u00e1m umo\u017e\u0148uje prot\u00e1hnut\u00ed najednou, co\u017e je tak\u00e9 \u010dasov\u011b v\u00fdhodn\u00e9. Krom\u011b dobr\u00e9ho odb\u011bru materi\u00e1lu se db\u00e1 tak\u00e9 na odvod t\u0159\u00edsek, kdy mus\u00ed b\u00fdt mezi jednotliv\u00fdmi b\u0159ity nebo zuby dostate\u010dn\u00e1 mezera, proto\u017ee p\u0159i odb\u011bru n\u00e1strojem nemaj\u00ed t\u0159\u00edsky uvnit\u0159 t\u011blesa kam j\u00edt. Kdy\u017e se pod\u00edv\u00e1me na cenu, tak klidn\u011b p\u0159ekra\u010duje 10 000 K\u010d, a proto se nejedn\u00e1 o levn\u00fd n\u00e1stroj. Na druhou stanu toho dost vydr\u017e\u00ed. Z t\u011bchto dvou d\u016fvod\u016f je pou\u017e\u00edv\u00e1n hlavn\u011b v s\u00e9riov\u00e9 v\u00fdrob\u011b, kdy se jeho pou\u017eit\u00ed vyplat\u00ed, tak\u017ee tato metoda je dost roz\u0161\u00ed\u0159en\u00e1.                                                                                                                                                                                                                                                                                                                                                                                           4.1\/5 - (10 votes)        "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Strojn\u00ed protahov\u00e1n\u00ed","item":"https:\/\/www.rep-checa.cz\/strojni-protahovani\/#breadcrumbitem"}]}]