[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.snella.cz\/bez-vystruzniku-nevyrobite-presny-otvor\/#Article","mainEntityOfPage":"https:\/\/www.snella.cz\/bez-vystruzniku-nevyrobite-presny-otvor\/","headline":"Bez v\u00fdstru\u017en\u00edk\u016f nevyrob\u00edte p\u0159esn\u00fd otvor","name":"Bez v\u00fdstru\u017en\u00edk\u016f nevyrob\u00edte p\u0159esn\u00fd otvor","description":"M\u00e1te doma elektrickou vrta\u010dku? Pravd\u011bpodobn\u011b na tuto ot\u00e1zku odpov\u00edte kladn\u011b, proto\u017ee a\u010dkoli jde o ryze stroj\u00edrensk\u00fd v\u00fdrobek, vrta\u010dky pat\u0159\u00ed do b\u011b\u017en\u00e9 v\u00fdbavy dom\u00e1cnost\u00ed a jsou zde mnohdy p\u0159\u00edmo nutnost\u00ed. Bez…","datePublished":"2023-05-20","dateModified":"2023-07-20","author":{"@type":"Person","@id":"https:\/\/www.snella.cz\/author\/devene\/#Person","name":"devene","url":"https:\/\/www.snella.cz\/author\/devene\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/dcb1aeb5e7d95014cdc92e76cf3c72f6b456579bf773ad0081803a6569ffc19c?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/dcb1aeb5e7d95014cdc92e76cf3c72f6b456579bf773ad0081803a6569ffc19c?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"snella.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.snella.cz\/wp-content\/uploads\/gears-3528112_640.jpg","url":"https:\/\/www.snella.cz\/wp-content\/uploads\/gears-3528112_640.jpg","height":0,"width":0},"url":"https:\/\/www.snella.cz\/bez-vystruzniku-nevyrobite-presny-otvor\/","about":["V\u00fdrobky"],"wordCount":396,"articleBody":"   M\u00e1te doma elektrickou vrta\u010dku? Pravd\u011bpodobn\u011b na tuto ot\u00e1zku odpov\u00edte kladn\u011b, proto\u017ee a\u010dkoli jde o ryze stroj\u00edrensk\u00fd v\u00fdrobek, vrta\u010dky pat\u0159\u00ed do b\u011b\u017en\u00e9 v\u00fdbavy dom\u00e1cnost\u00ed a jsou zde mnohdy p\u0159\u00edmo nutnost\u00ed. Bez vrta\u010dky nep\u0159ipevn\u00edte na ze\u010f konzoli ani poli\u010dku a zhotovujete-li jednoduch\u00e9 v\u00fdrobky ze d\u0159eva, k jejich mont\u00e1\u017ei b\u00fdv\u00e1 nutn\u00e9 vrt\u00e1n\u00ed otvor\u016f pro vruty \u010di \u0161rouby.S vrta\u010dkou se seznamuj\u00ed ji\u017e d\u011bti \u0161kolou povinn\u00e9 a u\u010d\u00ed se z\u00e1kladn\u00edmu kontaktu s t\u011bmito n\u00e1stroji v dom\u00e1cnostech i ve \u0161koln\u00edch d\u00edln\u00e1ch. Vyvrtan\u00e9 otvory ov\u0161em nejsou dostate\u010dn\u011b p\u0159esn\u00e9 pro n\u011bkter\u00e9 pohybliv\u00e9 soustroj\u00ed a hod\u00ed se jen pro n\u011bkter\u00e9 mont\u00e1\u017en\u00ed spoje.Vyhrubov\u00e1n\u00ed a vystru\u017eov\u00e1n\u00edChcete-li zhotovit velmi p\u0159esn\u00fd kruhov\u00fd otvor v kovov\u00e9m obrobku, vrt\u00e1k v\u00e1m na to sta\u010dit nebude. Je to d\u00e1no p\u0159\u00edmo jeho konstrukc\u00ed a geometri\u00ed. Dva protilehl\u00e9 b\u0159ity vrt\u00e1ku nikdy nedoc\u00edl\u00ed toho, aby proch\u00e1zely vrtan\u00fdm otvorem s minim\u00e1ln\u00ed excentricitou a v\u016fl\u00ed, vznik\u00e1 tu pom\u011brn\u011b zna\u010dn\u00e1 nep\u0159esnost a vyvrtan\u00fd otvor je pak mo\u017en\u00e9 vyu\u017e\u00edt maxim\u00e1ln\u011b pro situace, kdy je mezi otvorem a spojovac\u00edm komponentem velk\u00e1 v\u016fle. Typick\u00fdm p\u0159\u00edkladem tohoto \u0159e\u0161en\u00ed je vyvrtan\u00fd otvor pro \u0161rouby s matic\u00ed.Otvory pro kontakt dvou \u010di v\u00edce pohybliv\u00fdch sou\u010d\u00e1stek, kde je z\u00e1kladn\u00edm p\u0159edpokladem minim\u00e1ln\u00ed t\u0159en\u00ed a z\u00e1rove\u0148 p\u0159esn\u00fd chod mechanismu, se mus\u00ed vyrobit jinak. Nejprve se vrt\u00e1kem p\u0159edvrtaj\u00ed a n\u00e1sledn\u011b se podrob\u00ed vyhrubov\u00e1n\u00ed a p\u0159\u00edpadn\u011b vystru\u017eov\u00e1n\u00ed. Slou\u017e\u00ed k tomu nap\u0159\u00edklad ku\u017eelov\u00fd v\u00fdstru\u017en\u00edk I-n\u00e1stroje.N\u00e1stroje pro vyhrubov\u00e1n\u00ed a vystru\u017eov\u00e1n\u00ed se z konstruk\u010dn\u00edho hlediska od vrt\u00e1k\u016f v\u00fdznamn\u011b li\u0161\u00ed, a to zejm\u00e9na po\u010dtem \u0159ezn\u00fdch b\u0159it\u016f. \u010c\u00edm v\u00edce b\u0159it\u016f se po obvodu n\u00e1stroje nach\u00e1z\u00ed, t\u00edm p\u0159esn\u011bj\u0161\u00ed kontakt s obr\u00e1b\u011bn\u00fdm materi\u00e1lem a z\u00e1rove\u0148 hlad\u0161\u00ed povrch otvoru. Takto lze doc\u00edlit i t\u011bch nejp\u0159esn\u011bj\u0161\u00edch otvor\u016f pro velmi nam\u00e1han\u00e9 pohybliv\u00e9 \u010d\u00e1sti stroj\u016f, jako jsou nap\u0159\u00edklad klikov\u00e9 h\u0159\u00eddele spalovac\u00edch motor\u016f.                                                                                                                                                                                                                                                                                                                                                                                          4.7\/5 - (4 votes)        "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Bez v\u00fdstru\u017en\u00edk\u016f nevyrob\u00edte p\u0159esn\u00fd otvor","item":"https:\/\/www.snella.cz\/bez-vystruzniku-nevyrobite-presny-otvor\/#breadcrumbitem"}]}]