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IJAT Vol.3 No.3 pp. 271-276
doi: 10.20965/ijat.2009.p0271
(2009)

Paper:

A Study on Tool Position and Posture Measurement Device by Using Parallel Mechanism

Yukitoshi Ihara* and Shozo Matsushita**

*Osaka Institute of Technology
5-16-1 Omiya, Asahi-ku, Osaka 535-8585, Japan

**Itoki Corporation
1-14-12 Imafuku-higashi, Joto-ku, Osaka 536-0002, Japan

Received:
February 9, 2009
Accepted:
March 26, 2009
Published:
May 5, 2009
Keywords:
motion accuracy, parallel kinematics, machining centers
Abstract

The main purpose of this study is to develop a measuring test device by parallel kinematics for measuring a motion accuracy of multiaxis machining centers. The initially developed measuring test device could measure only position of the spindle with three displacement sensors. With the 3DOF device the motion accuracy of machine tools with three-axis was measured. Since the mechanism of the joint was smooth and the sensor resolution was small enough, the measured result showed that the measuring device had an enough performance for the machining centers in normal accuracy. Then the 6DOF measuring test device was developed. It had six displacement sensors and it could measure both position and posture angle of the main spindle. Despite the adoption of parallel kinematics, forward kinematics calculation was possible due to the sophisticated arrangement of sensors, thus the hi-speed data acquisition could be possible.

Cite this article as:
Y. Ihara and S. Matsushita, “A Study on Tool Position and Posture Measurement Device by Using Parallel Mechanism,” Int. J. Automation Technol., Vol.3, No.3, pp. 271-276, 2009.
Data files:
References
  1. [1] ISO 230, “Test code for machine tools,” 1996.
  2. [2] ISO 10791, “Test conditions for machining centers,” 1998.
  3. [3] J. C. Ziegert and C. D. Mize, “Laser ball-bar: A new instrument for machine tool metrology,” Precision Engineering, Vol.16, pp. 259-264, 1994.
  4. [4] N. Srinivasa, J. C. Ziegert, and C. D. Mize, “Spindle thermal drift measurement using the laser ball-bar,” Precision Engineering, Vol.18, pp. 118-127, 1996.
  5. [5] Y. Nakao, H. Goto, and C. Yamashita, “Motion Trajectory Measurement Method of Machining Center Using Parallel Mechanism (1st Report: Principle of Measurement Method and Measurement Experiments),” Journal of JSME, Vol.68, No.676, pp. 3735-3741, December 2002.
  6. [6] S. Weikert, “R-test, a New Device for Accuracy Measurement on Five Axis Machine Tools,” Annals of the CIRP, Vol.53, No.1, pp. 429-432, 2004.

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Last updated on Nov. 19, 2019