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Virtual Modelling and Simulation of a CNC Machine Feed Drive System

Zoran Pandilov ; University “Sv. Kiril i Metodij”-Skopje, Faculty of Mechanical Engineering, Skopje, Republic of Macedonia
Andrzej Milecki ; Poznan University of Technology, Faculty of Mechanical Engineering and Management, Poznan, Poland
Amadeusz Nowak ; Poznan University of Technology, Faculty of Mechanical Engineering and Management, Poznan, Poland
Filip Górski ; Poznan University of Technology, Faculty of Mechanical Engineering and Management, Poznan, Poland
Damian Grajewski ; Poznan University of Technology, Faculty of Mechanical Engineering and Management, Poznan, Poland
Damir Ciglar ; University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Zagreb, Croatia
Miho Klaić ; University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Zagreb, Croatia
Tihomir Mulc ; SAS-Strojogradnja, Zadar, Croatia

Sažetak

This paper deals with the virtual modelling and simulation of a complex CNC machine tool feed drive system. The first phase of the study was the modelling of a very complex structure of the feed drive which consists of many elements (position, velocity and current control regulators, actuators, mechanical transmission elements, etc.). All these elements have great influence on important parameters of the machine tool such as movement stability, positioning accuracy and dynamic stiffness. For the modelling of the system the Matlab-SIMULINK and Matlab-Sim Scape Toolbox software was used. The Matlab-Sim Scape Toolbox allowed us to use the complete CAD model of the geometry of the machine tool, automatically calculating the selected properties.
The influence of changing and optimizing several feed drive parameters (position loop gain Kv, proportional gain Kp of the velocity controller, integral gain of velocity controller-Tn, electrical drive time constant Te, total moving mass m, sampling period Ts, etc.) on the positioning accuracy and the dynamic stiffness was simulated, tested and validated.
The finished Matlab-Simulink and Sim Scape models were initially visualized in the Matlab program. They were very simplified, comparing with their later visualization in the Virtual Reality EON Studio program.

Ključne riječi

virtual modelling; simulation; CNC machine tool feed drive

Hrčak ID:

152132

URI

https://hrcak.srce.hr/152132

Datum izdavanja:

28.1.2016.

Posjeta: 6.571 *