Backlash Error Measurement and Compensation on the Vertical Machining Center

Huanlao Liu, Xiaoning Xue, Guangyu Tan

.

DOI: 10.4236/eng.2010.26053                

Abstract

The position errors in the axis direction of a vertical machine center have been measured by means of the VM101 linear encored measurement system. The character of the backlash error is discussed; results show that the backlash error has great influence on the position error. The position accuracy is enhanced after the backlash errors are compensated.

Keywords

Position Error, Backlash Error, Error Model, Artificial Neural Network

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1]	E. S. Lee, S. H. Suh and J. W. Shon, “A Comprehensivemethod for Calibration of Volumetric Positioning Accuracy on CNC Machines,” The International Journal of Advanced Manufacturing Technology, Vol. 14, No. 1, 1998, pp. 43-49.
[2]	J. Ni and S. M. Wu, “An On-Line Measurement Technique for Machine Volumetric Error Compensation,” Journal of Engineering for Industry, Vol. 115, 1993, pp. 85-92.
[3]	Y. C. Shin, H. Chin and M. J. Brink, “Characterization of CNC Machining Centers,” Journal of Manufacturing Systems, Vol. 10, No. 5, 1992, pp. 407-421.
[4]	Y. M. Ertekin and A. C. Okafor, “Vertical Machining Center Accuracy Characterization Using Laser Interferometer, Part 1. Linear Positional Errors,” Journal of Material Processing Technology, Vol. 105, No. 3, 2000, pp. 394-406.
[5]	W. Knapp, “Test of the Three-Dimensional Uncertainty of Machine Tools and Measuring Machine and its Relation to the Machine Errors,” Annals of CIRP, Vol. 32, No. 1, 1983, pp. 459-464.
[6]	Y. Kakino, Y. Ihara and Y. Nakatsu, “The Measurement of Motion Errors of NC Machine Tools and Diagnosis of their Origins by Using Telescoping Magnetic Ball Bar Method,” Annals of the CIRP, Vol. 36, No. 1, 1987, pp. 377-380.
[7]	W. Knapp, “Interim Checks for Machine Tools,” Proceedings of the 3rd International Conference on Laser Metrology and Machine Performance―LAMDAMP, 1997, pp. 161-168.
[8]	Y. S. Tarng, J. Y. Kao and Y. S. Lim, “Identification of and Compensation for Backlash on the Contouring Accuracy of CNC Machine Center,” The International Journal of Advanced Manufacturing Technology, Vol. 13, No. 2, 1997, pp. 359-366.
[9]	“HEIDENHAIN Mounting and Operating Instructions—VM 101 Incremental Comparator System,” Germany, 2000.
[10]	N. Srinnivasa, J. C. Ziegert and S. Smith, “Prediction of Position Errors of a Three Axis Machine Tool Using a Neural Network,” Proceedings of the Japan/USA Symposium on Flexible Automation, San Francisco, 1992, pp. 203-209.