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Proceedings Paper

Fast tool servo system for online compensation of error motion on an ultraprecision lathe
Author(s): Xiaohui Wang; Tao Sun
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Paper Abstract

In order to obtain high accuracy and a fine surface finish of large area workpiece, position control of machine tool has become the main concern to achieve high precision position control. In this system, diamond turning with a fast tool servo (FTS) driven by a piezoelectric actuator along with a capacitive displacement sensor was chosen as the fabrication method. A laser interferometer is implemented to measure the straightness error of the translational slide accurately. The detected error signals are compensated by the FTS during the cutting process. To achieve better tracking performance, proportional integral (PI) feed back control with a feed-forward predictor is implemented. Experimental results show that the FTS can effectively and successfully compensate the straightness errors of the X-axis translational slide of the miniature ultra-precision lathe.

Paper Details

Date Published: 21 May 2009
PDF: 5 pages
Proc. SPIE 7282, 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, 728211 (21 May 2009); doi: 10.1117/12.830820
Show Author Affiliations
Xiaohui Wang, Harbin Institute of Technology (China)
Tao Sun, Harbin Institute of Technology (China)


Published in SPIE Proceedings Vol. 7282:
4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies

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