Advertisement

On the Geometric and Thermal Errors of a Hexapod Machine Tool

  • J. A. Soons
Part of the Advanced Manufacturing book series (ADVMANUF)

Abstract

This paper describes the measurement and analysis of the quasi-static errors of a prototype hexapod milling machine located at the National Institute of Standards and Technology (NIST). Emphasis is placed on a) identification of the most important parametric errors and their potential impact on performance, b) description of the techniques used to measure and estimate the parametric errors, and c) application of various concepts to model the geometric and thermal errors of the hexapod.

Keywords

Machine Tool Tool Path Thermal Error Angular Error Spherical Joint 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Arai, T., et al., Design, analysis, and construction of a prototype parallel link manipulator, IEEE International Workshop on Intelligent Robots and Systems, pp. 205–212, 1990.Google Scholar
  2. 2.
    Bailey, P., The merits of hexapods for robotic applications, IEE Colloquium — Next Steps for Industrial Robotics, IEE Computing and Control Division C15 ( Robotics), London, United Kingdom, 1994Google Scholar
  3. 3.
    Hocken, R.J., Ed., Machine tool accuracy, Volume 5 of Technology of Machine Tools: A Survey of the State of the Art by the Machine Tool Task Force, University of California, Livermore, CA, 1980.Google Scholar
  4. 4.
    Ropponen, T., and Arai, T., Accuracy analysis of a modified Stewart platform manipulator, Proceedings of the IEEE International Conference on Robotics and Automation, pp. 521–525, 1995.Google Scholar
  5. 5.
    Soons, J.A., and Schellekens, P.H., On the calibration of multi-axis machines using distance measurements, Proceedings International Symposium on Metrology and Quality Control in Production, pp. 321–340, 1992Google Scholar
  6. 6.
    Soons, J.A., Error analysis of a hexapod machine tool, Laser Metrology and Machine Performance III, Proceedings of the 3rd Lamdamap Conference, D.G. Ford et al. Eds., Computational Mechanics Publications, 347–358, 1997Google Scholar
  7. 7.
    Wang, J., and Masory, O., On the accuracy of a Stewart platform — Part I The effect of manufacturing tolerances, Proceedings of the IEEE International Conference on Robotics and Automation, pp. 114–120, 1993Google Scholar
  8. 8.
    Zhuang, H., and Liu, L., Self-calibration of a class of parallel manipulators, Proceedings of the IEEE International Conference on Robotics and Automation, pp. 994–999, 1996.Google Scholar
  9. 9.
    Ziegert, J.C., and Mize, C.D., Laser ball-bar: A new instrument for machine tool metrology, Precision Engineering, 16, pp. 259–267, 1994.CrossRefGoogle Scholar
  10. 10.
    Ziegert, J.C., “Hexapod Calibration,” Presentation during the second Hexapod Users Group Meeting at the National Institute of Standards and Technology, Gaithersburg MD, March 1997Google Scholar

Copyright information

© Springer-Verlag London Limited 1999

Authors and Affiliations

  • J. A. Soons
    • 1
  1. 1.Automated Production Technology DivisionNational Institute of Standards and TechnologyGaithersburgUSA

Personalised recommendations