Konstrukcija 4-osne NU glodalice za obradu polimernih pjena

master's thesis

• Title (english): Construction of 4-axis CNC milling machine for machining of polymer foams
• Author: Marko Mlinarić
• Mentor: Damir Ciglar (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2015-07-16, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering; Production Mechanical Engineering

Abstract

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 (english)

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.

• Keywords: numerički upravljana glodalica; polimerne pjene; konstruiranje
• Keywords (english): CNC milling machine; polymer foams; construction
• Language: croatian
• URN:NBN: urn:nbn:hr:235:009852
• Study programme: Title: Mechanical Engineering; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka strojarstva (magistar/magistra inženjer/inženjerka strojarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2019-05-22 13:34:33