Prediction and Compensation of Dynamic Errors for Coordinate Measuring Machines
Author:
Dong Chensong1, Zhang Chuck1, Wang Ben1, Zhang Guoxiong2
Affiliation:
1. Department of Industrial Engineering, Florida A&M University-Florida State University, Tallahassee, FL 32310, USA 2. College of Precision Instrument and Opto-electronics Engineering, Tianjin University, Tianjin, 300072, P. R. China
Abstract
Coordinate measuring machines (CMMs) are already widely utilized as measuring tools in the modern manufacturing industry. Rapidly approaching now is the trend for next-generation CMMs. However, the increases in measuring velocity of CMM applications are limited by dynamic errors that occur in CMMs. In this paper, a systematic approach for modeling the dynamic errors of a touch-trigger probe CMM is developed through theoretical analysis and experimental study. An overall analysis of the dynamic errors of CMMs is conducted, with weak components of the CMM identified with a laser interferometer. The probing process, as conducted with a touch-trigger probe, is analyzed. The dynamic errors are measured, modeled, and predicted using neural networks. The results indicate that, using this mode, it is possible to compensate for the dynamic errors of CMMs.
Publisher
ASME International
Subject
Industrial and Manufacturing Engineering,Computer Science Applications,Mechanical Engineering,Control and Systems Engineering
Reference14 articles.
1. Weekers, W. G., and Schellekens, P. H. J., 1995, “Assessment of Dynamic Errors of CMMs for Fast Probing,” CIRP Ann., 44(1), pp. 469–474. 2. Soons, J. A., 1993, “Accuracy Analysis of Multi-axis Machines,” PhD Thesis, Eindhoven University of Technology. 3. Zhang, G. X., Veale, R., Borchardt, B., and Hocken, R., 1985, “Error Compensation of Coordinate Measuring Machines,” CIRP Ann., 34(1), pp. 445–448. 4. Schellekens, P. H. J., et al., 1989, Development of Methods for the Numerical Error Correction of Machine Tools, Final Report, BCR, 3320/1/0/160/89/8-BCR-NL, Brussels. 5. Estler, W. T., et al., 1997, “Practical Aspects of Touch-trigger Probe Error Compensation,” Precis. Eng., 21(1), pp. 1–17.
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