The OMM System for Machined Form and Surface Roughness Measurement Concerned with Volumetric Error

기계 체적오차가 고려된 가공형상-거칠기 측정 OMM 시스템

  • 이상준 (대천대학 기계자동차계열) ;
  • 김선호 (한국기계연구원 자동화연구) ;
  • 김옥현 (충북대학교 기계공학부)
  • Published : 2000.07.01

Abstract

Machining information such as machined form and surface roughness accuracy is an important factor for manufacturing precise parts. To this regard, OMM(On the Machine Measurement) has been issued for last several decades to alternate with CMM. In this research, measuring system consisting of a laser probe is developed for machined form and surface roughness measurement on the machine tool. The obtained machined form accuracy is compared with reference one defined in CAD model. The measured surface roughness data is compared with measured master surface beforehand. Furthermore, using the pre-defined volumetric error map approach compensates the geometric accuracy of the machine tool. The overall performance is compared with CMM, and verified the feasibility of the measurement system.

Keywords

References

  1. Owen, J. V., 'CMMs on the shop floor,' Manufacturing Engineering, April, pp. 66-70, 1991
  2. Keizo, U., 'Die & mold 3-dimensional measuring on the machine, 'Conf. on Die and Mold Technology, pp. 208-209, 1994
  3. 김선호, 김인훈, 'Scanning Probe를 이용한 OMM( On the Machine Measuring) 시스템 개발 및 평가', 한국정밀공학회지, 제13권 제10호, pp. 71-77, 1996
  4. 이승우, 김선호, '기상측정 시스템 개발,' 대한산업공학지, 제10권 제1호, pp. 199-205, 1998
  5. 이상준, 김선호, 김옥현, 'OMM 시스템의 측정 오차 해석,' 한국정밀공학회지, 제15권 제5호, pp. 34-42, 1998
  6. 조명우, 이세희, 서태일, 'CAD/CAM/CAI 통합에 기조한 자유곡면의 OMM : Ⅰ측정오차 모델링,' 한국정밀공학회지, 제16권, 제10호, pp. 172-181, 1999
  7. Kreuci, J. V., 'CMM measurement enhancement using probe compensation algorithms,' SME Techical Paper MS90-09, 1990
  8. Taylor, A., 'Performance characteristics of touch trigger probes,' SME Technical Paper MS90-266, 1990
  9. Reshetov, D. N. and Portman, V. T., 'Accuracy of machine tools,' ASME Press, 1988