Journal of the Korean Society for Precision Engineering (한국정밀공학회지)
- Volume 19 Issue 6
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- Pages.77-85
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- 2002
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- 1225-9071(pISSN)
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- 2287-8769(eISSN)
Improvement of Motion Accuracy Using Transfer Function in Linear Motion Bearing Guide
전달함수를 이용한 직선베어링 안내면의 운동정밀도 향상
- Kim, Kyung-Ho (Korea Institute of Science and Technology) ;
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Park, Chun-Hong
(Automation Eng., KIMM) ;
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Lee, Hu-Sang
(Automation Eng., KIMM) ;
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Kim, Seung-Woo
(Korea Institute of Science and Technology)
- Published : 2002.06.01
Abstract
An analysis method which calculates corrective machining information for improving the motion accuracy of linear motion guide Is proposed in this paper. The method is composed of two algorithms. One is the algorithm fur prediction of the motion errors from rail form error. The other is the algorithm for prediction of rail form error from the motion errors of table. Transfer function is utilized in each algorithm, which represents the ratio of bearing reaction force variation to unit magnitude of spatial frequencies of raid from error. As the corrective machining information is acquired from the measured motion errors of table, the method has a merit not to measure rail form error directly. Validity of the method is verified both theoretically and experimentally. By applying the method, linear motion error of test equipment is reduced from 5.97