Comparative investigation of rotary and linear motor feed drive systems for high precision machine tools

Author

Brandenburg, G. ; Bruckl, S. ; Dormann, J. ; Heinzl, J. ; Schmidt, C.

Author_Institution

Tech. Univ. Munchen, Garching, Germany

fYear

2000

fDate

1-1 April 2000

Firstpage

384

Lastpage

389

Abstract

International competition calls for increased machining accuracy of machine tools in the near future. In precision machining a position accuracy of 0.01 /spl mu/m is a desired standard. A new control applying oversampling methods for the current measurement has been developed in order to use a linear motor as a high-precision feed drive for a submicrometer range machine tool. The performance of the new linear drive system has been compared with different rotary drive systems on a lathe with air bearings of the slides. The new direct drive yields better results than any rotary drive system with precision ball or roller screws.

Keywords

electric current measurement; linear motors; machine tools; machining; motor drives; position control; air bearings; current measurement; direct drive; high precision machine tools; high-precision feed drive; increased machining accuracy; lathe; linear motor feed drive systems; oversampling methods; position accuracy; precision machining; rotary drive systems; submicrometer range machine tool;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Motion Control, 2000. Proceedings. 6th International Workshop on

Conference_Location

Nagoya, Japan

Print_ISBN

0-7803-5976-3

Type

conf

DOI

10.1109/AMC.2000.862898

Filename

862898