Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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An Automated Machine-Vision-based Feeding System for Engine Mount Parts

머신비젼 기반의 엔진마운트 부품 자동공급시스템

  • 이형근 (계명대학교 대학원 생산시스템공학과) ;
  • 이문규 (계명대학교 산업공학전공)
  • Published : 2001.05.01
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Abstract

This paper describes a machine-vision-based prototype system for automatically feeding engine-mount parts to a swaging machine which assembles engine mounts. The system developed consists of a robot, a feeding device with two cylinders and two photo sensors, and a machine vision system. The machine vision system recognizes the type of different parts being fed from the feeding device and estimates the angular difference between the inner-hole center of the part and the point predetermined for assembling. The robot then picks up each part and rotated it through the estimated angle such that the parts are well assembled together as specified. An algorithm has been developed to recognize different part types and estimate the angular difference. The test results obtained for a set of real specimens indicate that the algorithm performs well enough to be applied to prototype system.

Keywords

References

  1. 고국원, 박원식, 조형석, '생산 시스템 자동화 분야에서의 시각 인식 장치,' 제어.자동화.시스템 공학회지, 제2권, pp. 38-49, 1996
  2. 류경, 문윤식 김경민, 박귀태, '칩 마운터에서의 FIC 부품인식에 관한 연구,' 제어.자동화.시스템공학 논문지, 제4권, 제3호, pp. 384-391, 1998
  3. 윤종민, '3차원 진동을 이용한 부품의 이송 및 정렬에 관한 연구,' 연세대학교 대학원 박사학위논문, pp. 1-35, 1998
  4. 이문규, 이정화, '악조건하에서 카메라 교정을 위한 알고리즘,' 한국정밀 공학회지, 제16권, 제2호, pp. 164-175, 1999
  5. 이장용, 전경진, '공업용 침송 재봉기의 톱니와 바늘대 이송 메카니즘 해석 및 최적설계,' 한국정밀공학회지, 제14권, 제10호, pp. 35-43, 1997
  6. 정홍규, 박래홍, 'SMD 및 PCB의 방향과 위치탐지,' 전자공학회 논문집, 제31권, 제3호, pp. 281-291, 1994
  7. Chang, C. A., Lo, C. C., and, Hsieh, K. H., 'Neural networks and Fouries descriptors for part position using bar code features in material handling systems,' Computers and Industrial Engineering, Vol. 32, No. 2, pp. 467-476, 1997 https://doi.org/10.1016/S0360-8352(96)00213-6
  8. Lee, M. K. and Blenis, R., 'Design Concept and Prototype Development of a Flexible Integrated Vision System,' Journal of Robotic Systems, 11(5), pp. 387-398, 1994
  9. Pratt, W.K., Digital Image Processing, Wiley-Interscience Publication 1991
  10. Rao, a., Krigman, D. J., and, Goldberg, K. Y., 'Complete Algorithms for Feedign Polyhedral Parts Using Pivot Grasps,' IEEE Transactions on Robotics and Automation, Vol. 12, No. 2, 1996 https://doi.org/10.1109/70.488952
  11. Wu, X., Wu, L., and, Wu, A., 'The Robust Algorithums for Finding the Center of an Arc,' Computer Vision and Image Understanding, Vol. 62, No. 3, pp. 269-278, 1995 https://doi.org/10.1006/cviu.1995.1054