한국정밀공학회지 (Journal of the Korean Society for Precision Engineering)

  • 제21권4호
  • /
  • Pages.57-63
  • /
  • 2004
  • /
  • 1225-9071(pISSN)
  • /
  • 2287-8769(eISSN)
한국정밀공학회 (Korean Society for Precision Engineering)
권호 표지

스캐닝 프로브를 이용한 미지의 자유곡면 점군 획득에 관한 연구

Digitization of Unknown Sculptured Surface Using a Scanning Probe

  • 권기복 (영남대학교 대학원 기계공학과) ;
  • 김재현 (영남대학교 대학원 기계공학과) ;
  • 이정근 (영남대학교 대학원 기계공학과) ;
  • 박정환 (영남대학교 기계공학부) ;
  • 고태조 (영남대학교 기계공학부)
  • 발행 : 2004.04.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

This paper describes a method for digitizing the compound surfaces which are comprised of several unknown feature shapes such as base surface, and draft wall. From the reverse engineering's point of view, the main step is to digitize or gather three-dimensional points on an object rapidly and precisely. As well known, the non-contact digitizing apparatus using a laser or structured light can rapidly obtain a great bulk of digitized points, while the touch or scanning probe gives higher accuracy by directly contacting its stylus onto the part surface. By combining those two methods, unknown features can be digitized efficiently. The paper proposes a digitizing methodology using the approximated surface model obtained from laser-scanned data, followed by the use of a scanning probe. Each surface boundary curve and the confining area is investigated to select the most suitable digitizing path topology, which is similar to generating NC tool-paths. The methodology was tested with a simple physical model whose shape is comprised of a base surface, draft walls and cavity volumes.

키워드

참고문헌

  1. Song, C. K., 'Autonomous digitization of unknown free-form surfaces by triangular polyhedral approximation,' Ph.D. Thesis, KAIST, 1996
  2. Kim, S. H. and Kim, D. H., 'On-the-Machine Mesurement System,' J. of KSPE, Vol. 18, No. 6, pp. 9-18, 2001
  3. Chen, L.C. and Lin, G.C.I., 'An integrated reverse engineering approach to reconstructing free-form surfaces,' CIMS, Vol. 10, pp. 49-60, 1997
  4. Tamas Varady, 'Reverse engineering of geometric models - an introduction,' Computer-Aided Design, Vol. 29, No. 4, pp. 255-268, 1997 https://doi.org/10.1016/S0010-4485(96)00054-1
  5. Song, C. K., Kim, S. W. and Park, J., 'Automatic measurement of 3-dimensional profile of free-formed surfaces by using touch-trigger probes,' Journal of the Korean Society of Mechanical Engineers(in Korea), Vol. 17, No. 2, pp. 407-415, 1993
  6. Duffie, N., Bollinger, J., Piper, R. and Kroneberg, M., 'CAD directed inspection and error analysis using surface patch databases,' Annals of the CIRP, Vol. 33, No. 1, pp. 347-350, 1984 https://doi.org/10.1016/S0007-8506(07)61440-1
  7. Cho, M. W., 'Flexible inspection system using CAD database and vision guided coordinate machine,' Ph.D. Thesis, University of Illinois at Chicago, IL, 1992
  8. Pahk, H. J., Kim, Y. H., Hong, Y. S. and Kim, S. G., 'Development of computer-aided inspection system with CMM for integrated mold manufacturing,' Annals of the CIRP, Vol. 42, No. 1, pp. 557-560, 1993 https://doi.org/10.1016/S0007-8506(07)62508-6
  9. Kim, S. H. and Kim, I. H., 'The Development and Evaluation of OMM(On the Machine Measuring) System Using Scanning Probe,' J. of KSPE, Vol. 13, No. 10, pp. 71-77, 1996
  10. Kim, S. H., Lee, S. J. and Kim, O. H., 'The Analysis of Measuring Error in OMM System,' J. of KSPE, Vol. 15, No. 5, pp. 34-42, 1998
  11. Ko, T. J., Kim, H. S. and Lee, H. G., 'Reverse Engineering by effective digitizing with Sensor Fusion,' J. of KSPE Conference, Vol. 1, pp. 419-422 1999
  12. Lee, S. J., Kim, S. H. and Kim, O. H., 'The OMM System for Machined Form and Surface Roughness Measurement Concerned with Volumetric Error,' J. of KSPE, Vol. 17, No. 5, pp. 232-240, 2000
  13. CubicTek, Z-Master Reference Manual, 2002
  14. Park, J. W. and Ko, T. J., 'OMN system based on CAD model,' J. of KSPE, Vol. 18, No. 6, pp. 37-42, 2001
  15. Park, J. W., Chung, Y. C. and Choi, B. K., 'Precision Shape Modeling by Z-Map Model,' J. of KSPE, Vol. 15, No. 11, pp. 180-188, 1998
  16. Park, J. W., Kim, B. H. and Choi, B. K., 'Pencil Curve Tracing via Virtual Digitizing,' Transactions of the Society of CAD/CAM Engineers, Vol. 2, No. 4, pp. 253-266, 1997
  17. Kim, J. H., 'A study on the z-map generation & segmentation in reverse engineering by cloud-of-points data,' MS Thesis, Yeungnam University, 2002
  18. Choi,Byoung K., Jerard, Robert B., Sculptured surface machining, Kluwer Academic Publishers, pp. 58-64, 1999