[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.strabis.cz\/vyroba-presnych-der\/#Article","mainEntityOfPage":"https:\/\/www.strabis.cz\/vyroba-presnych-der\/","headline":"V\u00fdroba p\u0159esn\u00fdch d\u011br","name":"V\u00fdroba p\u0159esn\u00fdch d\u011br","description":"Ve stroj\u00edrenstv\u00ed je zapot\u0159eb\u00ed vyrobit mnoho p\u0159esn\u00fdch d\u011br, kdy rozhodn\u011b oby\u010dejn\u00fd vrt\u00e1k nesta\u010d\u00ed. Z\u00e1rove\u0148 je mus\u00edme m\u00edt \u010d\u00edm m\u011b\u0159it, aby byly skute\u010dn\u011b p\u0159esn\u00e9. V\u00fdroba p\u0159esn\u00fdch d\u011br Nesta\u010d\u00ed pouze vrt\u00e1k Jestli\u017ee pot\u0159ebujeme t\u0159eba doma do kovu vyvrtat otvor, jen\u017e bude slou\u017e\u00ed ke spojen\u00ed pomoc\u00ed \u0161roubu a matice, tak sta\u010d\u00ed zm\u011b\u0159it pot\u0159ebn\u00fd pr\u016fm\u011br n\u00e1sledn\u011b vz\u00edt a upnout […]","datePublished":"2020-10-23","dateModified":"2023-05-03","author":{"@type":"Person","@id":"https:\/\/www.strabis.cz\/author\/#Person","name":"strabis.cz\n","url":"https:\/\/www.strabis.cz\/author\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/68b3ed45b3ae6ecdad6bfa25b4077e93536d7764172b2830acbdb661d7242512?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/68b3ed45b3ae6ecdad6bfa25b4077e93536d7764172b2830acbdb661d7242512?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"strabis.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.strabis.cz\/wp-content\/uploads\/d%C3%ADry%20v%20kovu.jpg","url":"https:\/\/www.strabis.cz\/wp-content\/uploads\/d%C3%ADry%20v%20kovu.jpg","height":0,"width":0},"url":"https:\/\/www.strabis.cz\/vyroba-presnych-der\/","about":["V\u00fdrobky"],"wordCount":483,"articleBody":"        Ve stroj\u00edrenstv\u00ed je zapot\u0159eb\u00ed vyrobit mnoho p\u0159esn\u00fdch d\u011br, kdy rozhodn\u011b oby\u010dejn\u00fd vrt\u00e1k nesta\u010d\u00ed. Z\u00e1rove\u0148 je mus\u00edme m\u00edt \u010d\u00edm m\u011b\u0159it, aby byly skute\u010dn\u011b p\u0159esn\u00e9.V\u00fdroba p\u0159esn\u00fdch d\u011brNesta\u010d\u00ed pouze vrt\u00e1kJestli\u017ee pot\u0159ebujeme t\u0159eba doma do kovu vyvrtat otvor, jen\u017e bude slou\u017e\u00ed ke spojen\u00ed pomoc\u00ed \u0161roubu a matice, tak sta\u010d\u00ed zm\u011b\u0159it pot\u0159ebn\u00fd pr\u016fm\u011br n\u00e1sledn\u011b vz\u00edt a upnout p\u0159\u00edslu\u0161n\u00fd vrt\u00e1k do vrta\u010dky a vyrobit pot\u0159ebnou d\u00edru. Ov\u0161em vrt\u00e1n\u00edm pomoc\u00ed tohoto n\u00e1stroje je d\u00edra v\u017edy o n\u011bco v\u011bt\u0161\u00ed, aby pr\u00e1v\u011b t\u0159eba \u0161roub hezky d\u00edrou pro\u0161el. Ov\u0161em n\u011bkdy pot\u0159ebujeme, aby byla d\u00edra opravdu p\u0159esn\u00e1, p\u0159i\u010dem\u017e krom\u011b t\u0159eba z\u00e1vit\u016f si to vy\u017eaduj\u00ed t\u0159eba spojen\u00ed h\u0159\u00eddele s d\u00edrou. Tam klidn\u011b z\u00e1le\u017e\u00ed opravdu na tis\u00edcin\u00e1ch milimetru, aby bylo spojen\u00ed t\u0159eba t\u011bsn\u00e9. P\u0159i n\u011bm se d\u011bl\u00e1 h\u0159\u00eddele o n\u011bco v\u011bt\u0161\u00ed a d\u00edra o n\u011bco men\u0161\u00ed. Spojen\u00ed se pak vytvo\u0159\u00ed lisov\u00e1n\u00edm, nebo se d\u00edra nah\u0159eje, aby se do\u010dasn\u011b rozt\u00e1hla. Takov\u00e9ho otvoru se d\u00e1 dos\u00e1hnout nap\u0159\u00edklad tak, \u017ee nejd\u0159\u00edv vyvrt\u00e1me o n\u011bco men\u0161\u00ed d\u00edru a potom se pou\u017eije v\u00fdstru\u017en\u00edk. Ten je samoz\u0159ejm\u011b normalizovan\u00fd a je z odoln\u00e9ho materi\u00e1lu, p\u0159i\u010dem\u017e jeho rozm\u011bry a geometrie b\u0159it\u016f umo\u017e\u0148uje opravdu skv\u011blou p\u0159esnost.M\u011b\u0159en\u00ed Norm\u00e1ln\u00ed d\u00edru lze zm\u011b\u0159it i posuvnou, kdy se zase a\u017e tak nehraje na p\u0159esnost. Takov\u00e9 m\u011b\u0159en\u00ed je vhodn\u00e9 t\u0159eba p\u0159i hobby v\u00fdrob\u011b, kde je to naprosto posta\u010duj\u00edc\u00ed. Ov\u0161em existuje i p\u0159esn\u00e9 stroj\u00edrenstv\u00ed, kde opravdu p\u0159esnost na desetinu milimetru nesta\u010d\u00ed. Proto \u010dasto posuvn\u00e9 m\u011b\u0159\u00edtko nahrazuje mikrometr, kdy u\u017e v\u011bt\u0161inou opravdu p\u0159esnost rozhodn\u011b sta\u010d\u00ed. Nav\u00edc je mnohdy dobr\u00e9 investovat do digit\u00e1ln\u00ed verze, kde se V\u00e1m hodnota uk\u00e1\u017ee p\u0159\u00edmo na displeji a nemus\u00edme v\u016fbec nic \u0159e\u0161it. Ale rozhodn\u011b s t\u00edm b\u011b\u017en\u00fdm nezm\u011b\u0159\u00edme rozm\u011br d\u00edry, tak\u017ee mus\u00edme s\u00e1hnout po vnit\u0159n\u00edm mikrometru. Vhodn\u00fd je rozhodn\u011b tak\u00e9 dutinom\u011br https:\/\/www.i-nastroje.cz\/Dutinomery-subita-c11_398_2.htm, proto\u017ee ten m\u011b\u0159\u00ed minim\u00e1ln\u011b na setiny milimetru, tak\u017ee vzhledem k tomu a tak\u00e9 kvality v\u00fdrobky m\u00e1te pot\u0159ebnou p\u0159esnost zaru\u010denou. M\u016f\u017eete i zvolit pevn\u00e9 dutinom\u011bry, kdy nemus\u00edte nic slo\u017eit\u011b zm\u011b\u0159it, proto\u017ee maj\u00ed pevn\u011b dan\u00fd pr\u016fm\u011br, kdy hezky vyzkou\u0161\u00edte, jak pasuje do Va\u0161\u00ed d\u00edry. Nejv\u00fdhodn\u011bj\u0161\u00ed je cel\u00e1 sada m\u011b\u0159idel.                                                                                                                                                                                                                                                                                                                                                                                           4.2\/5 - (8 votes)        "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"V\u00fdroba p\u0159esn\u00fdch d\u011br","item":"https:\/\/www.strabis.cz\/vyroba-presnych-der\/#breadcrumbitem"}]}]