On-line cylindricity-measurement and error-compensating control in an ultraprecision lathe

Shengyi Li; Ming-Nuan Qin; C. James Li

doi:10.1117/12.156339

22 September 1993 On-line cylindricity-measurement and error compensating control in an ultra-precision lathe

Shengyi Li, Ming-Nuan Qin, C. James Li

Proceedings Volume 2101, Measurement Technology and Intelligent Instruments; (1993) https://doi.org/10.1117/12.156339
Event: Measurement Technology and Intelligent Instruments, 1993, Wuhan, China

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.

Citation Download Citation

Shengyi Li, Ming-Nuan Qin, and C. James Li "On-line cylindricity-measurement and error compensating control in an ultra-precision lathe", Proc. SPIE 2101, Measurement Technology and Intelligent Instruments, (22 September 1993); https://doi.org/10.1117/12.156339

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