A Workmanlike Orthogonal-Type Robot with a Force Input Device
Fusaomi Nagata*, Takanori Mizobuchi*, Sho Yoshitake*,
Hitoshi Suzukawa*, Hiroto Ishihara*, and Keigo Watanabe**
*Department of Mechanical Engineering, Faculty of Engineering, Tokyo University of Science, Yamaguchi, 1-1-1 Daigaku-Dori, Sanyo-Onoda 756-0884, Japan
**Department of Intelligent Mechanical Systems, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
In this paper, a workmanlike orthogonal-type robot with a force input device is presented. The control system is composed of a force feedback loop, a position feedback loop and a position feedforward loop. The force feedback loop controls the resultant force consisting of tool contact force and kinetic friction forces. The stability criterion of the force control system is briefly discussed. Also, the position feedback loop controls the position in only pick feed direction. The position feedforward loop leads the tool tip along a desired trajectory called Cutter Location data (CL data), in which the feed rate is suitably generated by a fuzzy reasoning according to each model’s curvature. Further, a fine stick-slip motion control strategy is added to the control system to improve the lapping efficiency. The fine stick-slip motion is orthogonally generated to the direction of tool movement. Finally, a force input device is presented for an operator to manually regulate the desired feed rate or the desired polishing force. The force input device allows the robot to realize cooperative motion between the automatic control and the manual control reflecting the operator’s skill. The effectiveness of the robot is examined through experiments.
Hitoshi Suzukawa, Hiroto Ishihara, and Keigo Watanabe, “A Workmanlike Orthogonal-Type Robot with a Force Input Device,” J. Adv. Comput. Intell. Intell. Inform., Vol.15, No.7, pp. 888-895, 2011.
-  P. M. Barrie, A. Cunningham, P. Mass, D. W. Pritty, and A. Proudfoot, “A Cartesian Robot with a Modular Control System and Limited Intelligence Capability,” J. of Microcomputer Applications, Vol.8, No.2, pp. 109-121, 1985.
-  M. Callegari, F. Cannella, S. Monti, and C. Santolini, “Dynamic Models for the Re-Engineering of a High-Speed Cartesian Robot,” Procs. of 2001 IEEE/ASME Intelligent Mechatronics, pp. 560-565, 2001.
-  Y. Touati and Y. Amirat, “Fuzzy Logic Controller DesignMethodology for Cartesian Robot Control,” Int. J. of Computer Applications in Technology, Vol.27, No.2-3, pp. 85-96, 2006.
-  O. Fuchiwaki, D. Misaki, C. Kanamori, and H. Aoyama, “Development of the Orthogonal Microrobot for Accurate Microscopic Operations,” J. of Micro-Nano Mechatronics, Vol.4, No.1-2, pp. 85-93, 2008.
-  M. J. Tsai, J. L. Chang, and J. F. Haung, “Development of an Automatic Mold Polishing System,” Procs. of 2003 IEEE Int. Conf. on Robotics & Automation, pp. 3517-3522, Taipei, Taiwan, 2003.
-  M. J. Tsai, J. J. Fang, and J. L. Chang, “Robotic Path Planning for an Automatic Mold Polishing System,” Int. J. of Robotics and Automation, Vol.19, No.2, pp. 81-89, 2004.
-  F. Nagata, T. Mizobuchi, and K. Watanabe, “A Workmanlike Orthogonal-type Robot for Finishing an LED Lens Mold,” Procs. of Joint 5th Int. Conf. on Soft Computing and Intelligent Systems and 11th Int. Symposium on Advanced Intelligent Systems, pp. 1271-1276, 2010.
-  O. Bilkay and O. Anlagan, “Computer Simulation of Stick-Slip Motion in Machine Tool Slideways,” Tribology International, Vol.37, No.4, pp. 347-351, 2004.
-  X. Mei, M. Tsutsumi, T. Tao, and N. Sun, “Study on the Compensation of Error by Stick-Slip for High-Precision Table,” Int. J. of Machine tools & Manufacture, Vol.44, No.5, pp. 503-510, 2004.
-  F. Nagata, T. Hase, Z. Haga, M. Omoto, and K. Watanabe, “CAD/CAM-Based Position/Force Controller for a Mold Polishing Robot,” Mechatronics, Vol.17, No.4-5, pp. 207-216, 2007.
-  F. Nagata and K. Watanabe, “Feed Rate Control Using a Fuzzy Reasoning for a Mold Polishing Robot,” J. of Robotics and Mechatronics, Vol.18, No.1, pp. 76-82, 2006.
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