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Static and Dynamic Characteristics of the Spindle Bearing System with a Gear Located on the Bearing Span

베어링 스팬상에 기어구동축을 갖는 스핀들 베어링 시스템의 정적 및 동적 해석방법에 관한 연구

  • Choe, Jin-Gyeong ( Dept. of Mechanical Engineering, Korea Advanced Institute of Science and Technology) ;
  • Big, Gyu-Yeol (University of Ulsan) ;
  • Lee, Dae-Gil (Dept. of Mechanical Engineering, Korea Advanced Institute of Science and Technology)
  • 최진경 (한국과학기술원 기계공학과) ;
  • 빅규열 (울산대학교 정밀기계공학과) ;
  • 이대길 (한국과학기술원 기계공학과)
  • Published : 1996.05.01

Abstract

Since the spindle bearing systme is the main source of the total cutting point compliance of machine tool structures, in this work, the static and dynamic characteristics of the spndle bearing systme driven by the gear located on the bearing span were investigated using analytical and finite elemtn methods to improve the performance of the spindle bearing system. Based on the theretical results, a specially designed prototype spindle bvearing systme was manufactured. Using the manufactured spindle bearing system, the static and dynamic characteristics were measured. From the comparison of the experimental results with the theoretical results, it was found that the finite elemetn method predicted well the static and dynamic characteristics of the spindle bearing system.

Keywords

Machine Tools;Spindle System;Stiffness;Natural Frequency;Anglular Contact Ball Bearing