Development of An User-Friendly Integrated Program and Teaching System for Automatic Polishing Robot System

자동 연마 시스템의 사용자 지향형 통합 프로그램 및 자동 교시 시스템 개발

  • 고석조 (동의공업대학 기계시스템계열) ;
  • 이민철 (부산대학교 기계공학부) ;
  • 이만형 (부산대학교 기계공학부) ;
  • 안중환 (부산대학교 기계공학부) ;
  • 전차수 (경상대학교 산업공학과) ;
  • 이돈진 (부산대학교 지능기계공학과)
  • Published : 2001.04.01

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. Some workers tend to gradually avoid the polishing work because of the poor environment caused by dust and noise. In order to reduce the polishing time and cope with the shortage of skilled workers, a user-friendly automatic polishing system was developed in this research. The polishing system with five degrees of freedom is able to keep the polishing tool normal to the die surface. The polishing system is controlled by a PC-NC controller. To easily operate the developed polishing robot system, this study developed an integrated program in the Windows environment. This program consists of four modules: the polishing module, the graphic simulator, the polishing data generation module, and the 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. The joystick is used to simultaneously drive the polishing system to an arbitrary orientation and the proximity sensor is used to obtain teaching points precisely. Also, to evaluate the stability of the driving program and the teaching system, polishing experiments of a die of saddle shape were carried out.

Keywords

References

  1. M. Kunieda, T. Nakagawa, and T. Higuchi, 'Robot polishing of curved surface with magnetically pressed polishing tool,' JSPE, vol. 54, no.1, pp. 121-125, 1988
  2. M. Suziki, S. Ichiyasu, K. Kirii, S. Sunahara, T. Sakuta, and A. Asai, 'Development of Die-finishing robotic system controlled by CAD/CAM system,' JSPE-58-08, pp. 1309-1314, 1992
  3. M. Kazutoyo, K. Tsukasa, I. Satoru, S. Katsumasa, and S. Tetuo, 'Study on automatic polishing of injection Mold-polishing with constant pressure under controlled tool staying time-,' Proc. Of the ABTEC, pp. 431-434, 1995. (in Japanese)
  4. 박균명, 장진희, 한창수, '자동경면 다듬질 장치의 실험적 분석에 관한 연구,' 한국정밀공학회지, 제12권 제9호, pp. 30-39, 1995
  5. 강성철, 김문상, 이교일, '금형 연마작업을 위한 로봇 오프라인 프로그래밍 시스템의 개발 및 적용,' 한국정밀공학회지, 제14권 제1호, pp. 69-77, 1997
  6. K. Satio, 'Finishing and polishing of free form surface,' Bulletin of Japan Society of Precision Engineering, vol. 18, no. 2, pp. 104-109, 1984
  7. K. Shunichi, A. Tojiro, and I. Ichiro, '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. (in Japanese)
  8. K. Saito and T. Miyoshi, 'Automation of polishing process for a cavity surface on dies and molds by using an expert system,' Annuls of CIRP, vol. 42, no. 1, pp. 553-556, 1993
  9. 박삼진 외 8명, 3차원 곡면의 설계 및 가공 통합시스템 개발, 최종보고서, 한국기계연구원, 1993
  10. 조현덕, 자유곡면을 위한 5-축 정밀가공에 관한 연구, 박사학위논문, 한국과학기술원, 1993
  11. 차경덕, 김동수, 전차수, 조규갑, 이민철, '5축 연마기를 위한 전용 CAM 시스템,' 대한기계학회 '98년도 생산 및 설계공학부문 학술강연회 강연집, 부산대학교, pp. 27-31, 1998
  12. M. C. Lee, S. J. Go, M. H. Lee, C. S. Jun, D. S. Kim, K. D. Cha, and J. H. An, 'Robust trajectory tracking control of a polishing robot system based on CAM data,' The 10th Int. Conf. on FAIM(Flexible Automation and Intelligent Manufacturing), Maryland, USA, pp. 497-506, June, 2000
  13. S. J. Go and M. C. Lee, 'Development of a controller for polishing robot attached to machining center and its performance evaluation,' Proc. Of '98 KACC Int. Session Papers, Pusan, Korea, pp. 346-351, Oct., 1998
  14. Delta Tau, PMAC User's Manual, Delta Tau Data Systems,
  15. 이돈진, 김선호, 박경택, 안중환, '개방형 CNC에서 절삭력 변화에 따른 이송계의 최적 서보게인,' 한국정밀공학회 '98춘계학술대회 논문집, 충북대학교, pp. 211-214, 1998