DOI QR코드

DOI QR Code

Development of Automatic Inspection System for Lead Screw of Computer

컴퓨터용 Lead Screw의 자동검사 시스템 개발

  • Bae, Jin-Ho (Division of Mechanical and Automotive Engineering, Kongju National University) ;
  • Ra, Seung-Woo (Seoul Metal Co. Ltd.) ;
  • Yu, Pill-Sang (Seoul Metal Co. Ltd.) ;
  • Kim, Sung-Gaun (Division of Mechanical and Automotive Engineering, Kongju National University)
  • Received : 2010.04.22
  • Accepted : 2010.11.19
  • Published : 2010.11.30

Abstract

In manual inspection of Lead Screw of computers many workers are needed to inspect samples, and its main disadvantage is that such types of inspection system not only gives low production, but also gives low perfection. Besides, in manual inspection system, the inspection cost of samples is higher than that of the automatic inspection system. Therefore, in this study to compensate these shortcomings, an automatic inspection system is developed. For the inspection of the surfaces and different dimensional parameters of computer Lead screw, a $360^{\circ}$ rotating machine vision system is developed. From the detailed analysis of the inspection results using the present developed inspection system, it is observed that the developed Lead Screw automatic inspection system is superior to those of manually inspection system.

컴퓨터용 Lead Screw는 검사방식이 수동검사로 이루어져 작업자의 주관적 판단으로 인한 미검출과 과검출이 발생하고, 생산성이 저하되는 단점이 있다. 따라서 본 연구에서는 이러한 단점을 보완하고자 Lead Screw 자동검사 시스템을 개발했다. 검사시스템은 Lead Screw 자동공급 및 이송을 위한 공급 이송 장치와, 표면검사를 위한 $360^{\circ}$ 회전장치, 치수검사를 위한 머신비젼 부분으로 구성된다. Lead Screw 자동검사 시스템으로 표면과 치수 측정결과, 오검률 및 미검률이 수동검사 결과보다 우수함을 보였다.

Keywords

References

  1. 정보통신산업진흥원, "21세기 한국 컴퓨터산업의 현황과 국제경쟁력 분석", pp. 65-90, 11월, 1999.
  2. Information Processing Society, SangHak Lee, MyongHo Seo, TaeChoong Chung, "Development of Automatic Nut Inspection System using Image Processing", Vol. 11, No. 4, pp. 235-236, 2004. https://doi.org/10.3745/KIPSTA.2004.11A.4.235
  3. 서울금속, "Automatic Inspection System Manual", pp. 11-14, 12월, 2008.
  4. Basart. J. P., and Gonzalez, R. C.,"Binary Morphology", Bellingham, Wash, pp. 227-305, 1992.
  5. Kyuwon Jeong, Jongsung Park, Changu Gang., "A study on the defect inspection of the LCD polarizer film using the vision system", Journal of Industrial Science and Technology Institute, Vol. 17, No. 1, pp. 47-53, 2003.
  6. Jones, R., and Svalbe, I., "Algorithms for the Decomposition of GrayScale Morphological Operations", IEEE Trans. Pattern Anal. Machine Intell, Vol. 16, No. 6, pp. 581-588, 1994. https://doi.org/10.1109/34.295903
  7. 조명전기설비학회논문지, "독립형 비전을 이용한 자동차용 Valve-Seal의 자동 검사시스템 개발", vol.21, no.8, pp.71-80, 2007. https://doi.org/10.5207/JIEIE.2007.21.8.071