Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Thermal Characteristics Analysis of 30,000rpm High Speed Spindle

30,000rpm 고속 주축의 열특성 분석

  • 임정숙 (한국기계연구원 부설 재료연구소) ;
  • 유기한 (창원대학교 메카트로닉스공학부) ;
  • 정원지 (창원대학교 메카트로닉스공학부) ;
  • 김수태 (창원대학교 메카트로닉스공학부) ;
  • 이정환 (한국기계연구원 부설 재료연구소) ;
  • 이춘만 (창원대학교 메카트로닉스공학부)
  • Published : 2009.07.01
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Abstract

Thermal displacement of high speed spindle is very important problem to be solved. To solve heat generation and thermal displacement problems that influence on the product accuracy, it is very important to predict thermal characteristics of the spindle and it is positively necessary to select the conditions of cooling, flow rate and preload of bearings. In this paper, 30,000rpm($1.455{\times}10^6DmN$) spindle was designed and produced. The analysis of thermal deformation for heat generation of inner spindle was carried out using commercial program $ANSYS^{(R)}$ and the result was compared with measured data using $LabVIEW^{(R)}$ and SGXI-1600, 1125 and 1126 module. Temperature distribution and thermal displacement according to spindle speed are measured. Using this method, it is possible to predict and to improve thermal characteristic of high speed spindle by control spindle speed, bearing preload and cooling rate.

Keywords

References

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