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Proceedings Paper

On-line cylindricity-measurement and error-compensating control in an ultraprecision lathe
Author(s): Shengyi Li; Ming-Nuan Qin; C. James Li
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Paper Abstract

An on-line cylindricity measuring and compensating system is currently developped in our lab at Changsha Institute of Technology. Firstly the modeling about the error and on-line measuring is introduced in this paper. Based on 3-point method EST (Error Separating Technique) the method has been improved and used to separate the workpiece form error from error caused by inaccurate motion of machine tool. In order to overcome complrx modeling problem of the pizoelectrical actuator a new cotrol method P-integrator learning control i uHed to increase the accuracy of tracking compensating control. The experiment shows that the accuracy of cylindricity measurement is within 0 05 rn tlkL compensated cylindricity within 0. 2 m/6Omm which is improved more than 85.

Paper Details

Date Published: 22 September 1993
PDF: 4 pages
Proc. SPIE 2101, Measurement Technology and Intelligent Instruments, (22 September 1993); doi: 10.1117/12.156339
Show Author Affiliations
Shengyi Li, Changsha Institute of Technology (China)
Ming-Nuan Qin, Changsha Institute of Technology (China)
C. James Li, Columbia Univ. (China)

Published in SPIE Proceedings Vol. 2101:
Measurement Technology and Intelligent Instruments
Li Zhu, Editor(s)

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