한국생산제조학회지 (Journal of the Korean Society of Manufacturing Technology Engineers)

  • 제20권3호
  • /
  • Pages.310-315
  • /
  • 2011
  • /
  • 2508-5093(pISSN)
  • /
  • 2508-5107(eISSN)
한국생산제조학회 (The Korean Society of Manufacturing Technology Engineers)
권호 표지

공구 중심점의 변위 최소화를 위한 문형 공작기계의 크로스레일 개선 연구

The Displacement Minimization of the tool Center Point by the Crossrail Structure Improvement of the Portal Machine

  • 투고 : 2011.05.04
  • 심사 : 2011.06.01
  • 발행 : 2011.06.15
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

General portal machine represents a distinct weak spot concerning their structural behavior because of long protruding structure components, such as saddles and rams. The weak point causes the deformation of the machine tool and consequently rises a severe machining error. The purpose of this study is to improve the structural design of crossrail in order to minimize it's distortion. Tool Center Point (TCP) was chosen as a reference point for evaluating the distortion effect of a crossrail and topological optimization was adopted as a method of structural design improvement. The displacements of TCP according to the machining positions were investigated by structural analyses for both of original crossrail design and the improved one. The comparing results showed that the displacement of TCP could be reduced about 55% maximum.

키워드

참고문헌

  1. Brecher. C., Manoharan. D., and Klein. W., 2010, "Active Compensation for Portal Machines," Production Engineering, Vol. 4, No. 2-3, pp. 255-260. https://doi.org/10.1007/s11740-010-0212-y
  2. Brecher. C., Manoharan. D., and Stephan Witt. E. W. E., 2008, "Structure Integrated Adaptronical Systems for Machine Tools," Production Engineering, Vol. 2, No. 2, pp. 219-223. https://doi.org/10.1007/s11740-007-0074-0
  3. Choi. Y. H., Jang. S. H., Kim. I. S., Cho. Y. J., and Oh. C. W., 2006, "Structural Layout Design Alternative of a 5-Axes Multi-tasking Machine Considering Loop Stiffness," Proceedings of the KSMTE Spring Conference, pp. 226-231.
  4. Lee. M. K., Park. J. B., Kim. N. S., Min. D. L., and Lee. E. S., 2010, "Deflection Measurement and Analysis of the Cross Rail for Gantry type Machine Tools," Proceedings of the KSMTE Autumn Conference, pp. 78-82.
  5. Optistruct, 2010, Optistruct 10.0 Reference, Altair Engineering Inc.