Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Servo Mismatch Estimation of Miniaturized Machine Tools Using Laser Tracker

레이저 트래커를 이용한 소형 공작기계의 서보 불일치 추정

  • Lee, Hoon Hee (School of Mechanical Engineering, Kyungpook National University) ;
  • Kweon, Sung Hwan (Institute of Mechanical Engineering Technology, Kyungpook National University) ;
  • Son, Jin Gwan (School of Mechanical Engineering, Kyungpook National University) ;
  • Yang, Seung Han (School of Mechanical Engineering, Kyungpook National University)
  • Received : 2016.01.05
  • Accepted : 2016.05.09
  • Published : 2016.08.01
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Abstract

Servo mismatch, which affects positioning accuracy of multi-axis machine tools, is usually estimated via the circular test. However, due to mechanical restrictions in measuring instruments, the circular test using a double ball-bar is difficult to apply in miniaturized or super-large sized machine tools. Laser trackers are widely used to measure the form accuracy of parts and the positioning accuracy of driving systems. In this paper, a technique for the servo mismatch estimation of multi-axis machine tools is proposed via the circular test using a laser tracker. To verify the proposed technique, experiments using a double ball-bar and laser tracker are conducted in a 3-axis machine tool. The difference in the evaluation results is 0.05 msec. The servo mismatch for the miniaturized machine tool is also evaluated using the proposed technique.

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References

  1. Mayr, J., Jedrzejewski, J., Uhlmann, E., Donmez, M. A., Knapp, W., et al., "Thermal Issues in Machine Tools," CIRP Annals-Manufacturing Technology, Vol. 61, No. 2, pp. 771-791, 2012. https://doi.org/10.1016/j.cirp.2012.05.008
  2. Schwenke, H., Knapp, W., Haitjema, H., Wecken-Mann, A., Schmitt, R., et al., "Geometric Error Measurement and Compensation of Machines-An Update," CIRP Annals-Manufacturing Technology, Vol. 57, No. 2, pp. 660-675, 2008. https://doi.org/10.1016/j.cirp.2008.09.008
  3. Lee, J. H., Liu, Y., and Yang, S. H., "Accuracy Improvement of Miniaturized Machine Tool: Geometric Error Modeling and Compensation," International Journal of Machine Tools and Manufacture, Vol. 46, No. 12, pp. 1508-1516, 2006. https://doi.org/10.1016/j.ijmachtools.2005.09.004
  4. Koren Y., "Cross-Coupled Biaxial Computer Control for Manufacturing System," Journal of Dynamic Systems, Measurement, and Control, Vol. 202, No. 4, pp. 265-271, 1980.
  5. ISO 230-4, "Test Code for Machine Tools-Part 4: Circular Test for Numerically Controlled Machine Tools," 2005.
  6. Knapp, W., "Circular Test for Three-coordinate Measuring Machines and Machine Tools," Precision Engineering, Vol. 5, No. 3, pp. 115-124, 1983. https://doi.org/10.1016/0141-6359(83)90007-7
  7. Bryan, J. B., "A Simple Method for Testing Measuring Machines and Machine Tools Part 1: Principles and Applications," Precision Engineering, Vol. 4, No. 2, pp. 61-69, 1982. https://doi.org/10.1016/0141-6359(82)90018-6
  8. Kakino, Y., Ihara, Y., Nakatsu, Y., and Okamura, K., "The Measurement of Motion Errors of NC Machine Tools and Diagnosis of Their Origins by Using Telescoping Magnetic Ball Bar Method," CIRP Annals-Manufacturing Technology, Vol. 36, No. 1, pp. 377-380, 1987. https://doi.org/10.1016/S0007-8506(07)62626-2
  9. Hai, N., Yuan, J., and Ni, J., "Reverse Kinematic Analysis of Machine Tool Error using Telescoping Ball Bar," Proc. of International Mechanical Engineering Congress and Exposition, pp. 277-286, 1994.
  10. Lee, K. I. and Yang, S. H., "Measurement and Verification of Position-Independent Geometric Errors of a Five-Axis Machine Tool Using a Double Ball-Bar," International Journal of Machine Tools and Manufacture, Vol. 70, pp. 45-52, 2013. https://doi.org/10.1016/j.ijmachtools.2013.03.010
  11. Renishaw plc, "QC20-W Wireless Ballbar System Description and Specification," http://www.renishaw.com/media/pdf/en/bc37e3f237284417baa57889d207cf97.pdf (Accessed 4 January 2016)
  12. FANUC, "FANUC Robonano ${\alpha}$-0iB," http://www.fanuc.co.jp/en/product/catalog/pdf/robonano/ROBON ANO%20a-0iB(E)_v10.pdf (Accessed 4 January 2016)
  13. TSUGAMI, "CNC Precision Automatic Lathe," http://www.tsugami.co.jp/eng/product/auto-lathe (Accessed 4 January 2016)
  14. Nubiola, A. and Bonev, I. A., "Absolute Calibration of an ABB IRB 1600 Robot Using a Laser Tracker," Robotics and Computer-Integrated Manufacturing, Vol. 29, No. 1, pp. 236-245, 2013. https://doi.org/10.1016/j.rcim.2012.06.004
  15. Zhang, Z. and Hu, H., "A General Strategy for Geometric Error Identification of Multi-Axis Machine Tools based on Point Measurement," The International Journal of Advanced Manufacturing Technology, Vol. 69, No. 5, pp. 1483-1497, 2013. https://doi.org/10.1007/s00170-013-5094-7