Contour error analysis and gain tuning for CNC machining center

Author

Na, Il-Ju ; Choi, Chong-Ho ; Jang, Tae-Jeong ; Choi, Byeong-Kap ; Song, O-Sok

Author_Institution

Dept. of Control & Instrum. Eng., Seoul Nat. Univ., South Korea

Volume

1

fYear

1996

fDate

18-21 Mar 1996

Firstpage

197

Abstract

One of the most important performance criteria in tuning the gain of position loop controller for CNC machining center is the contour error. We derive error formulae for the linear and circular interpolation which can be applied to the axis-matched and mismatched cases. For the axis-matched case, the derived formula can be easily interpreted in the frequency domain. Based on this interpretation, we propose a gain tuning method for the P and PD controller. The effectiveness of the method is demonstrated in a series of experiments

Keywords

computerised numerical control; error analysis; interpolation; machining; proportional control; servomechanisms; tuning; two-term control; CNC machining center; P controller; PD controller; circular interpolation; contour error analysis; gain tuning; linear interpolation; Computer numerical control; Error analysis; Error correction; Feedback loop; Interpolation; Milling machines; PD control; Performance gain; Servomechanisms; Steady-state;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Motion Control, 1996. AMC '96-MIE. Proceedings., 1996 4th International Workshop on

Conference_Location

Mie

Print_ISBN

0-7803-3219-9

Type

conf

DOI

10.1109/AMC.1996.509404

Filename

509404