[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.rotoml.cz\/jak-byste-zhotovili-velmi-presny-kruhovy-otvor\/#Article","mainEntityOfPage":"https:\/\/www.rotoml.cz\/jak-byste-zhotovili-velmi-presny-kruhovy-otvor\/","headline":"Jak byste zhotovili velmi p\u0159esn\u00fd kruhov\u00fd otvor","name":"Jak byste zhotovili velmi p\u0159esn\u00fd kruhov\u00fd otvor","description":"Co je to vrta\u010dka, v\u00ed ka\u017ed\u00fd. Je to stroj, s jeho\u017e funkc\u00ed se seznamuj\u00ed u\u017e d\u011bti ve \u0161kol\u00e1ch a posl\u00e9ze studenti a u\u010dni ve...","datePublished":"2023-03-27","dateModified":"2023-04-28","author":{"@type":"Person","@id":"https:\/\/www.rotoml.cz\/author\/devene\/#Person","name":"devene","url":"https:\/\/www.rotoml.cz\/author\/devene\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/1aa4d33840e2afc29128e2a456d425ca0d17b173c888af2db652b1d34fe6f93d?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/1aa4d33840e2afc29128e2a456d425ca0d17b173c888af2db652b1d34fe6f93d?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"rotoml.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.rotoml.cz\/wp-content\/uploads\/drilling-g2b40ba6ac_640.jpg","url":"https:\/\/www.rotoml.cz\/wp-content\/uploads\/drilling-g2b40ba6ac_640.jpg","height":0,"width":0},"url":"https:\/\/www.rotoml.cz\/jak-byste-zhotovili-velmi-presny-kruhovy-otvor\/","about":["Zbo\u017e\u00ed"],"wordCount":392,"articleBody":"       Co je to vrta\u010dka, v\u00ed ka\u017ed\u00fd. Je to stroj, s jeho\u017e funkc\u00ed se seznamuj\u00ed u\u017e d\u011bti ve \u0161kol\u00e1ch a posl\u00e9ze studenti a u\u010dni ve st\u0159edn\u00edch odborn\u00fdch u\u010dili\u0161t\u00edch. Uchopit do ruky vrt\u00e1k, upnout jej do skl\u00ed\u010didla a vyvrtat kruhov\u00fd, respektive v\u00e1lcov\u00fd otvor, je \u010dinnost, kterou zvl\u00e1dne kde kdo, ale to je\u0161t\u011b neznamen\u00e1, \u017ee zhotoven\u00fd otvor m\u00e1 dokonal\u00fd tvar a velmi jemn\u00fd povrch. Vrt\u00e1ky jsou toti\u017e ur\u010den\u00e9 pro relativn\u011b nep\u0159esnou pr\u00e1ci, a takov\u00e9to otvory slou\u017e\u00ed zejm\u00e9na pro \u0161roubov\u00e9 spoje. \u0160roub se tudy prot\u00e1hne s v\u011bt\u0161\u00ed v\u016fl\u00ed a na nep\u0159esn\u00e9 kruhovitosti tolik nez\u00e1le\u017e\u00ed.Jin\u00e1 situace nast\u00e1v\u00e1 v okam\u017eiku, kdy je zapot\u0159eb\u00ed zhotovit naopak otvor velmi p\u0159esn\u00fd. Takov\u00fd, aby poslou\u017eil pro vz\u00e1jemnou interakci s n\u011bjakou h\u0159\u00eddel\u00ed. H\u0159\u00eddel mus\u00ed m\u00edt v\u016f\u010di otvoru minim\u00e1ln\u00ed v\u016fli a vz\u00e1jemn\u00fd spoj mus\u00ed b\u00fdt pohybliv\u00fd, s minim\u00e1ln\u00ed \u00fahlovou toleranc\u00ed v\u00fdkyvu do stran. Jako jeden z p\u0159\u00edklad\u016f bychom mohli uv\u00e9st valiv\u00e1 lo\u017eiska, p\u00edst v tlakov\u00e9m lisu anebo klikovou h\u0159\u00eddel v motoru automobilu.Jak vyrobit p\u0159esn\u00fd otvorVe stroj\u00edrenstv\u00ed se postupuje tak, \u017ee se nejprve p\u0159edvrt\u00e1 otvor men\u0161\u00edho pr\u016fm\u011bru vrt\u00e1kem, a do otvoru se pak nasad\u00ed dal\u0161\u00ed dva n\u00e1stroje \u2013 v\u00fdhrubn\u00edk a v\u00fdstru\u017en\u00edk staviteln\u00fd. V\u00fdhrubn\u00edky a v\u00fdstru\u017en\u00edky jsou v\u00edceb\u0159it\u00e9 n\u00e1stroje, kter\u00e9 zhotov\u00ed otvory pot\u0159ebn\u00e9 jakosti, v mnoha \u0159e\u0161en\u00edch kovov\u00fdch obrobk\u016f. Vyu\u017e\u00edvaj\u00ed se jak v kusov\u00e9, tak v s\u00e9riov\u00e9 v\u00fdrob\u011b, a uplatn\u00ed se v\u0161ude, kde vrt\u00e1ky nesta\u010d\u00ed. Mohou to b\u00fdt i situace, kdy nap\u0159\u00edklad majitel\u00e9 veter\u00e1n\u016f a dal\u0161\u00edch technick\u00fdch vymo\u017eenost\u00ed, se nemohou spol\u00e9hat na n\u00e1hradn\u00ed d\u00edly v prodeji, a mus\u00ed si poradit sami.V\u00fdhrubn\u00edky jsou ji\u017e speci\u00e1ln\u00ed stroj\u00edrensk\u00e9 n\u00e1stroje, kter\u00e9 se v b\u011b\u017en\u00fdch dom\u00e1cnostech a kutilsk\u00fdch d\u00edln\u00e1ch sice nevyskytuj\u00ed tak hojn\u011b, ale to neznamen\u00e1, \u017ee byste je nemohli m\u00edt doma v p\u0159\u00edpad\u011b pot\u0159eby i vy. Jsou sice dra\u017e\u0161\u00ed, ne\u017e vrt\u00e1ky, ale rozhodn\u011b nejsou cenov\u011b nedostupn\u00e9 a p\u0159edra\u017een\u00e9.                                                                                                                                                                                                                                                                                                                                                                                          4.1\/5 - (10 votes)        "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Jak byste zhotovili velmi p\u0159esn\u00fd kruhov\u00fd otvor","item":"https:\/\/www.rotoml.cz\/jak-byste-zhotovili-velmi-presny-kruhovy-otvor\/#breadcrumbitem"}]}]