International Journal of Precision Engineering and Manufacturing

Korean Society for Precision Engineering (한국정밀공학회)
권호 표지

User-friendly Automatic Polishing Robot System and Its Integrated Operating Program

  • Lee, Min-Cheol (School of Mechanical Engineering, Pusan National University) ;
  • Jung, Jin-Young (Graduated School of Mechanical and Intelligent Systems Engineering, Pusan National University) ;
  • Go, Seok-Jo (Division of Mechanical Engineering, Dongeui Institute of Technology)
  • Published : 2004.07.01
Download PDF
⟨ Previous Next ⟩

Abstract

Polishing a die that has free-form surfaces is a time-consuming and tedious job, and requires a considerable amount of high-precision skill. In order to reduce the polishing time and cope with the shortage of skilled workers, an automatic polishing robot system was developed. The polishing robot system is composed of two subsystems, a three-axis machining center and a two-axis polishing head. The machining center is controlled by a FANUC controller, and the polishing head by DSP controller. The system has five degrees of freedom and is able to keep the polishing tool normal to the die surface during operation. To easily operate the developed polishing robot system, this study developed an integrated operating program in the Windows environment. The program consists of five modules: a polishing data generation module, a code separation module, a polishing module, a graphic simulator module, and a teaching module. Also, the automatic teaching system was developed to easily obtain teaching data and it consists of a three dimensional joystick and a proximity sensor. Also, to evaluate the performance of the integrated operating program and the polishing robot system, polishing experiments of a die of shadow mask were carried out.

Keywords

References

  1. Kazutoyo, M., Tsukasa, K., Satoru, I., Katsumasa, S. and Tetuo, S., 'Study on Automatic Polishing of Injection Mold- Polishing with constant pressure under controlled tool staying time-,' Proc. of the ABTEC, pp. 431-434, 1995
  2. Park, G. M., Jang, J. H. and Han, C. S., 'A study on the Experimental Analysis of the Automatic Fine Polishing System,' J. of the KSPE, Vol. 12, No. 9, pp. 30-39, 1995
  3. Suziki, M., Ichiyasu, S., Kirii, K., Sunahara, S., Sakuta, T. and Asai, A., 'Development of Die-finishing Robotic System Controlled by CAD/ CAM System,' JSPE-58-08, pp. 1309-1314, 1992
  4. Kang, S. C., Kim, M. S. and Lee, K. I., 'Development and Verification of a Robot Off-line Programming System for Die Polishing Process,' J. of the KSPE, Vol. 14, No. 1, pp. 69-77, 1997
  5. Kunieda, M., Nakagawa, T. and Higuchi, T., 'Robot Polishing of Curved Surface with Magnetically Pressed Polishing Tool,' JSPE, Vol. 54, No. 1, pp. 121-125, 1988
  6. Oh, Y. S. and Ryuh, B. S., 'The Development of Grinding Robot System Using NC Data and Off-Line Programming,' J. of the KSPE, Vol. 16, No. 3, pp. 9-17, 1999
  7. Park, S. J., Lee, S. H., Ryu, K. S., Sin, B. S., Choi, D. S. and Kim, D. H., Development of an Integrated Design and Machining System for 3-D Surface, Final Report, KIMM, 1993
  8. Shunichi, K., Tojiro, A. and Ichiro, L., 'Development of a Robot-Polishing System (Polishing Force Control by Means of Fuzzy Set Theory),' JSME J. Series C, Vol. 57. No. 543, pp. 3714-3719, 1991
  9. Chung, S. C., Kuk, K. H. and Choi, G. B., 'Development of Off-Line Robot Task Programming System for Polishing Process of Sculptured Surfaces,' J. of the KSPE, Vol. 8, No. 4, pp. 84-94, 1991
  10. Go, S. J. and Lee, M. C. 'Development of a Controller for Polishing Robot Attached to Machining Center and Its Performance Evaluation,' Proc. of '98 KACC, pp. 346-352, 1998
  11. FANUC, FANUC 18M User Manual, FANUC, 1996
  12. Lee, M. C., Go, S. J., Lee, M. H., Jun, C. S., Kim, D. S., Cha, K. D. and Ahn, J. H., 'A Robust Trajectory Tracking Control of a Polishing Robot System Based on CAM Data,' Int. J. of RCIM, Vol. 17:1-2, pp. 177-183, 2001
  13. Cha, K. D., Kim, D. S., Jun, C. S., Cho, K. K. and Lee, M. C., 'A Dedicated CAM System for a 5-Axis Polishing Machine,' KSME 98PD, pp. 27-28, 1998
  14. Fu, K. S., Gonzalez, R. C. and Lee, C. S. G., Robotics, McGraw-Hill, 1987
  15. Lee, M. C. and Ha, D. J., 'A Study on the Development of Polishing Robot System Attached to Machining Center for Curved Surface Die,' J. of the KSPE, Vol. 16, No. 4, pp. 163-177, 1999
  16. Lee, M. C., Cho, Y. G. and Lee, M. H., 'Evaluation of Polishing Performance Using the Improved Polishing Robot System Attached to Machining Center,' Int. J. of the KSPE, Vol. 3, No. 4, pp. 43-53, 2002
  17. Hwacheon, Hwacheon Moulds Polishing Robot, Hwacheon, 1997
  18. Jeong, J. H., Polishing system for a Mold Cavity, Final Report, ERC/NSDM, 1995