Konstrukcija 4-osne NU glodalice za obradu polimernih pjena

Mlinarić, Marko (2015) Konstrukcija 4-osne NU glodalice za obradu polimernih pjena. = Construction of 4-axis CNC milling machine for machining of polymer foams. Master's thesis (Bologna) , Sveučilište u Zagrebu, Fakultet strojarstva i brodogradnje, UNSPECIFIED. Mentor: Ciglar, Damir.

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Abstract (Croatian)

U radu je prikazan proces konstruiranja 4-osne numerički upravljane glodalice za obradu polimernih pjena. Polimerne pjene su relativno jeftin i lako obradljiv materijal s dobrim mehaničkim svojstvima zbog čega se koriste za izradu raznih ortopedskih pomagala i medicinskih implantata. Na glodalici je predviđena obrada dijelova sličnih pojedinim dijelovima ljudskog dijela, npr. torzo. Za obradu takvih površina dovoljne su četiri numerički upravljane osi od kojih su tri translacijske i jedna rotacijska. Rotacijska os je ostvarena s okretnim stolom. Prvi korak u ovom radu je proračun osnovnih dijelova stroja, a to su kuglično navojno vreteno, pogonski servo motor, linearne vodilice i reduktor okretnog stola. Nakon toga je cijela glodalica modelirana u CAD programu „CATIA“. Da bi glodalica potpuno ispunila svoju funkciju, modelirani su i neki konstrukcijski dodaci kao što su šiljak, protuuteg, kutija za odvojenu česticu i zaštita za operatera. Potrebna dokumentacija za izradu stroja izrađena je u programu „AutoCAD“.

Abstract

In this thesis a designing process of an 4-axis CNC milling machine for machining of polymeric foams is shown. Polymeric foams are relatively inexpensive material with high machinability and good mechanical properties. Because of this propertis they are used for making various orthopedic devices and medical implants. The milling machine is designed for milling parts identical to certain parts of human body, such as torso. For milling such surfaces four numerically controlled axes are sufficient, three translational and one rotational. The rotational axis is achieved by the rotary table. The first step in this thesis is the calculation of the basic parts of the machine, such as ballscrew, servo motor drive, linear guideway and gearbox rotary table. After that, the entire milling machine is modeled in CAD software "CATIA". To achieve the complete function of the milling machine, some constructional extras such as spike, a counterweight, a box for a separate particle and protection for the operater were modeled. The necessary documentation for making the milling machine is made in the „AutoCAD“ software.

Item Type: Thesis (Master's thesis (Bologna))
Uncontrolled Keywords: numerički upravljana glodalica; polimerne pjene; konstruiranje
Keywords (Croatian): CNC milling machine; polymer foams; construction
Subjects: TECHNICAL SCIENCE > Mechanical Engineering > mechanical engineering design and drafting
Divisions: 1200 Department of Technology > 1230 Chair of Machine Tools
Date Deposited: 08 Jul 2015 08:18
Last Modified: 16 Oct 2015 12:41
URI: http://repozitorij.fsb.hr/id/eprint/4484

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