Journal of the Korean Society of Industry Convergence (한국산업융합학회 논문집)

The Korean Society of Industry Convergence (한국산업융합학회)
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Design of a 6-axis Compliance Device with F/T Sensing for Position/Force Control

위치/힘 동시제어를 위한 F/T측정 기능을 갖는 6축 순응기구 설계

  • Kim, Han Sung (Dept. of Mechanical Engineering, Kyungnam University)
  • Received : 2018.01.17
  • Accepted : 2018.03.05
  • Published : 2018.03.31
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Abstract

In this paper, the design of a novel 6-axis compliance device with force/torque sensing capability and the experiment results on force measurement are presented. Unlike the traditional control methods using a force/torque sensor with very limited compliance, the force control method employs a compliant device to provide sufficient compliance between an industrial robot and a rigid environment for more stable force control. The proposed compliance device is designed to have a diagonal stiffness matrix at the tip and uses strain gauge measurement which is robust to dust and oil. The measurement circuit is designed with low-cost IC chips however the force resolution is 0.04N.

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References

  1. Raibert, M. J. and Craig, J. J. 1981. Hybrid Position/force Control of Manipulators. ASME J. Dyn. Syst. Meas. Contr. 103, 126-133. https://doi.org/10.1115/1.3139652
  2. Duffy, J. 1990. The fallacy of modern hybrid control theory that is based on orthogonal complements of twist and wrench spaces. J. Robot. Syst. 7, 139-144. https://doi.org/10.1002/rob.4620070202
  3. Drake, S. H. and Simunovic, S. N. 1979. Compliant Assembly System Device. U.S. Patent 4,155,169.
  4. Griffis, M. and Duffy J. 1991. Kinestatic Control: A Novel Theory for Simultaneously Regulating Force and Displacement. Trans. ASME Journal of Mechanical Design. 113(4), 508-515. https://doi.org/10.1115/1.2912812
  5. Griffis, M. 1991. A novel theory for simultaneously regulating force and displacement. Ph.D. dissertation, University of Florida, Gainesville.
  6. Jung, H. 2006. Mechanisms with Variable Compliance. Doctorate Thesis, University of Florida.
  7. Choi, S. W., Choi, Y. J., Kim, S. H. 1999. Using a Compliant Wrist for a Teleoperated Robot. Proc. of the 1999 IEEE/RSJ IROS, 585-589.
  8. Vibhute, A. 2011. Implementing Kinestatic Control using Six DOF Compliant Parallel Mechanism. Master thesis, University of Florida.
  9. Duffy, J. 1996. Statics and Kinematics with Applications to Robotics. Cambridge University press, Cambridge, UK. Ch. 5, 153-169.
  10. Tsai, L. W. 1999. Robot Analysis: The Mechanics of Serial and Parallel Manipulators. John Wiley & Sons, Inc., 224-225.
  11. Griffis, M., Duffy, J. 1993. Global Stiffness Modeling of a Class of Simple Compliant Couplings. Mechanisms and Machine Theory. 28, 207-224. https://doi.org/10.1016/0094-114X(93)90088-D
  12. Kim, H.S. 2014. Kinestatic Control using Six-axis Parallel-type Compliant Device. KSMTE. 23(5), 421-427.