[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.lukre.cz\/protahovaci-trn-se-vyplati-pro-velkoseriovou-vyrobu\/#Article","mainEntityOfPage":"https:\/\/www.lukre.cz\/protahovaci-trn-se-vyplati-pro-velkoseriovou-vyrobu\/","headline":"Protahovac\u00ed trn se vyplat\u00ed pro velkos\u00e9riovou v\u00fdrobu","name":"Protahovac\u00ed trn se vyplat\u00ed pro velkos\u00e9riovou v\u00fdrobu","description":"Stroj\u00edrensk\u00e1 v\u00fdroba nen\u00ed pro na\u0161i zemi ni\u010d\u00edm nezn\u00e1m\u00fdm, a\u010dkoli se m\u016f\u017ee zd\u00e1t, \u017ee za socialismu jsme v tomto sm\u011bru pokulh\u00e1vali za z\u00e1padn\u00edmi mocnostmi, \u0159ada stroj\u00edrensk\u00fdch odv\u011btv\u00ed se u n\u00e1s dr\u017eela a st\u00e1le dr\u017e\u00ed na sv\u011btov\u00e9 \u0161pi\u010dce. Vzpome\u0148me kup\u0159\u00edkladu brn\u011bnskou Zbrojovku, v\u00fdrobu speci\u00e1ln\u00edch kovov\u00fdch slitin pro l\u00e9ka\u0159sk\u00e9 \u00fa\u010dely (kloubn\u00ed n\u00e1hrady atp.), sv\u011btov\u011b proslul\u00fd provoz produkce turb\u00edn […]","datePublished":"2021-09-15","dateModified":"2023-05-22","author":{"@type":"Person","@id":"https:\/\/www.lukre.cz\/author\/#Person","name":"","url":"https:\/\/www.lukre.cz\/author\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/6eaf701939e92690bed32d6f2e2c0f9e1355f2e3837c1fb45fbfacf848239e2d?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/6eaf701939e92690bed32d6f2e2c0f9e1355f2e3837c1fb45fbfacf848239e2d?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"lukre.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.lukre.cz\/wp-content\/uploads\/industry-g5a024c7d9_640.jpg","url":"https:\/\/www.lukre.cz\/wp-content\/uploads\/industry-g5a024c7d9_640.jpg","height":0,"width":0},"url":"https:\/\/www.lukre.cz\/protahovaci-trn-se-vyplati-pro-velkoseriovou-vyrobu\/","about":["Zbo\u017e\u00ed"],"wordCount":405,"articleBody":"   Stroj\u00edrensk\u00e1 v\u00fdroba nen\u00ed pro na\u0161i zemi ni\u010d\u00edm nezn\u00e1m\u00fdm, a\u010dkoli se m\u016f\u017ee zd\u00e1t, \u017ee za socialismu jsme v tomto sm\u011bru pokulh\u00e1vali za z\u00e1padn\u00edmi mocnostmi, \u0159ada stroj\u00edrensk\u00fdch odv\u011btv\u00ed se u n\u00e1s dr\u017eela a st\u00e1le dr\u017e\u00ed na sv\u011btov\u00e9 \u0161pi\u010dce. Vzpome\u0148me kup\u0159\u00edkladu brn\u011bnskou Zbrojovku, v\u00fdrobu speci\u00e1ln\u00edch kovov\u00fdch slitin pro l\u00e9ka\u0159sk\u00e9 \u00fa\u010dely (kloubn\u00ed n\u00e1hrady atp.), sv\u011btov\u011b proslul\u00fd provoz produkce turb\u00edn v Plzni nebo rozs\u00e1hl\u00fd komplex mladoboleslavsk\u00e9 \u0160kodovky.Stroja\u0159ina se tak\u00e9 u n\u00e1s vyu\u010duje jako u\u010debn\u00ed obor a studuje se v mnoha d\u00edl\u010d\u00edch zam\u011b\u0159en\u00edch na \u010cVUT v Praze a na dal\u0161\u00edch vysok\u00fdch \u0161kol\u00e1ch v Brn\u011b, Liberci, Jihlav\u011b, \u010cesk\u00fdch Bud\u011bjovic\u00edch, Ostrav\u011b, v Plzni, \u00dast\u00ed nad Labem a v Hradci Kr\u00e1lov\u00e9.Sou\u010d\u00e1st\u00ed v\u00fduky tohoto velmi obs\u00e1hl\u00e9ho a n\u00e1ro\u010dn\u00e9ho technick\u00e9ho oboru jsou i v\u00fdrobn\u00ed n\u00e1stroje pro stroj\u00edrenskou v\u00fdrobu. Mo\u017en\u00e1 byste dok\u00e1zali odvodit, \u017ee existuje soustru\u017enick\u00fd n\u016f\u017e, fr\u00e9za, vrt\u00e1k, v\u00fdhrubn\u00edk, v\u00fdstru\u017en\u00edk, pilov\u00fd list \u010di brusn\u00e9 listy a kotou\u010de, ov\u0161em existuj\u00ed i m\u00e9n\u011b zn\u00e1m\u00e9 n\u00e1stroje, jako je protahovac\u00ed trn. K \u010demu je vlastn\u011b pot\u0159ebujeme?Pro otvory neobvykl\u00e9ho tvaru, kter\u00e9 se jinak obt\u00ed\u017en\u011b vyr\u00e1b\u00ed \u2013 kruhov\u00fd otvor v kovov\u00e9m obrobku lze zhotovit velmi snadno, ale co kdy\u017e pot\u0159ebujete vyrobit otvor nepravideln\u00fdch rozm\u011br\u016f, r\u016fzn\u00e9 tvarov\u00e9 dr\u00e1\u017eky obd\u00e9ln\u00edkov\u00e9ho pr\u016f\u0159ezu atp.? P\u0159edstavte si takov\u00fd otvor v mosazn\u00e9 vlo\u017ece patentn\u00edho z\u00e1mku do dve\u0159\u00ed, jak byste jej vyrobili? Protahovac\u00edm trnem velmi snadno.Pro s\u00e9riovou v\u00fdrobu \u2013 protahovac\u00ed trn lze popsat tak, \u017ee jde o dlouh\u00fd a \u00fazk\u00fd trn, opat\u0159en\u00fd \u0159ezn\u00fdmi zuby tak, aby v \u0159ad\u011b za sebou ka\u017ed\u00fd z nich odeb\u00edral p\u0159esnou t\u0159\u00edsku a po jeho prota\u017een\u00ed otvorem doc\u00edlil posledn\u00ed zub fin\u00e1ln\u00edho po\u017eadovan\u00e9ho tvaru. Vyrobit samotn\u00fd protahovac\u00ed trn je velmi slo\u017eit\u00e1 v\u00fdrobn\u00ed operace a takov\u00fd n\u00e1stroj je tak\u00e9 pat\u0159i\u010dn\u011b drah\u00fd, proto se vypl\u00e1c\u00ed pouze pro s\u00e9riovou v\u00fdrobu d\u00edl\u010d\u00edch sou\u010d\u00e1stek, co\u017e jsou nap\u0159. ozuben\u00e1 kola nebo zmi\u0148ovan\u00e9 vlo\u017eky do z\u00e1mk\u016f.                                                                                                                                                                                                                                                                                                                                                                                          4.7\/5 - (9 votes)        "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Protahovac\u00ed trn se vyplat\u00ed pro velkos\u00e9riovou v\u00fdrobu","item":"https:\/\/www.lukre.cz\/protahovaci-trn-se-vyplati-pro-velkoseriovou-vyrobu\/#breadcrumbitem"}]}]