Improvement of the technological process of fork asssembly machining

Ovaj završni rad opisuje unaprjeđenje jednog tehnološkog postupka te tranziciju izrade s konvencionalnih na numerički upravljane alatne strojeve. Cilj je, osim unaprjeđenja samog tehnološkog postupka, povećati kvalitetu i ponovljivost proizvoda te omogućiti izradu veće količine uz korištenje što manjeg broja alatnih strojeva (CNC tokarski stroj, CNC glodaći obradni centar). U uvodnom dijelu je opisan postojeći tehnološki postupak izrade sklopa vilice te su istaknuti učestali problemi prilikom izrade. U nastavku se opisuje unaprjeđenje tehnološkog postupka izrade sastavnih dijelova sklopa vilice, razrađuje se u smislene cjeline te se daje slijedan prikaz potrebnih operacija i alata. Posebna pažnja je posvećena osmišljavanju i konstruiranju pomoćnih steznih naprava, koje uvelike pomažu prilikom realizacije sveukupnog unaprjeđenja, jer se u jednoj napravi pozicionira, steže i na kraju obrađuje veći broj pozicija sklopa vilice (tijelo vilice i svornjak). Sve komponente su konstruirane te su operacije izrade simulirane u 3D virtualnom prikazu programskog paketa Solidworks 2015. Naposljetku se komentiraju moguća dodatna i buduća unaprjeđenja tehnološkog postupka izrade sklopa vilice.This bachelor thesis deals with the improvement of the technological machining process and the transition from conventional to numerically controlled machine tools machining. The main objective, apart from improving the technological machining process itself, is to increase the quality and repeatability of the product as well as the production quantity while using as few as possible of machine tools (CNC lathe, CNC milling machine). The introductory section describes the existing technological machining process of the fork assembly manufacturing where frequent problems of manufacturing are highlighted. In the following, the improved technological machining process of the fork assembly components is described, elaborated in a meaningful whole and is given a sequential overview of the required operations and tools. Particular attention is paid to conceptualization and design of auxiliary clamping devices, which greatly assist in the realization of the entire improvement, because in one clamping device, a large number of components of the fork assembly (fork body and bolt) are positioned, clamped and machined. All components are designed and operations simulated in the 3D virtual representation of Solidworks 2015. Lastly, possible additional and future improvements of the technological machining process of fork assembly is commented