Thermal Characteristic Estimation of NC Machining Center Bed following Rib Structure

리브 구조에 따른 머시닝센터 베드의 열적 특성 평가

  • 김양진 (한국기계연구원 초정밀기계시스템연구실)
  • Received : 2010.10.22
  • Accepted : 2010.11.25
  • Published : 2010.12.15

Abstract

Rib structure has been used to bed and column of machine tool to heighten weight stiffness ratio, cost performance and weight saving. In this paper the bed rib structure was estimated with thermal characteristics. Using superposition principle, machine tool designer can describe every complicated heat generation in the machine tool thermal source. As thermal characteristics, thermal deformation of guide rail and column and Maximum-minimum temperature variation were selected. The size, configuration and direction against the thermal loading surface operated to the thermal characteristics. The DB chart was made following rib structure estimating thermal characteristics. With superposition principle and DB chart, machine tool designer can prognosticate the thermal characteristics without FEM analysis to every bed rib structure.

Keywords

References

  1. Sata, T., Takeuchi, Y., Okubo, N., and Sato, K., 1975 "Control of the Thermal Deformation of a Machine Tool(1st Report) -Rapid Stabilization of a Machine Tool before Working," Journal of the Japan Society for Precision Engineering, Vol. 41, pp. 592-597. https://doi.org/10.2493/jjspe1933.41.592
  2. Takeuchi, Y., Okubo, N., and Sata, T., 1975, "Control of the Thermal Deformation of a Machine Tool(2nd Report) -Control on Varying Heat Source," Journal of the Japan Society for Precision Engineering, Vol. 41, pp. 1084-1089. https://doi.org/10.2493/jjspe1933.41.1084
  3. Loewenfeld, K., 1957, "Die Gestaltung von Platten," Konstruktion, Vol. 5, pp. 180-187.
  4. Hori, S., Nishiwaki, N., and Ishitomi, K., 1996, "Study on Estimating Thermal Deformation of Machine System," Transactions of the Japan Society of Mechanical Engineers, Vol. 96, pp. 1391-1396.
  5. Hori, S. and Nishiwaki, N., 1997, "Study on Thermal Deformation of Machine Tool Structure Estimated by Its Basic Characteristics," Transactions of the Japan Society of Mechanical Engineers, Vol. 97, pp. 1836-1841.