Thermal Characteristic Analysis of a High-Precision Centerless Grinding Machine for Machining Ferrules

페룰 가공용 초정밀 무심 연삭기의 열 특성 해석

  • 김석일 (한국항공대학교 항공우주 및 기계공학부) ;
  • 조재완 (한국항공대학교 항공우주 및 기계공학부)
  • Published : 2006.01.01

Abstract

To perform the finish grinding process of ferrules which are widely used as fiber optic connectors, a high-precision centerless grinding machine is necessary. The high-precision centerless grinding machine is consisted of the hydrostatic GW and RW spindle systems, hydrostatic RW feeding mechanism, RW swivel mechanism, on-machine GW and RW dressers, and concrete-filled steel bed. In this study, the thermal characteristics of the high-precision centerless grinding machine such as the temperature distribution, temperature rise and thermal deformation, are estimated based on the virtual prototype of the grinding machine and the heat generation rates of heat sources related to the machine operation conditions. The reliability of the predicted results is demonstrated by the temperature characteristics measured from the physical prototype. Especially, the predicted and measured results show the fact that the high-precision centerless grinding machine has very stable thermal characteristics.

Keywords

References

  1. Takeuchi, Y., Mitachi, S. and Nagase, R., 'High-Strength Class-Ceramic Ferrule for SC-Type Single-Mode Optical Fiber Connector,' IEEE Photonics Technology Letters, Vol. 9, No. 11, pp. 1502-1504, 1997 https://doi.org/10.1109/68.634722
  2. Rowe, W. B., Miyashita, M. and Koenig, W., 'Centerless Grinding Research and its Application in Advanced Manufacturing Technology,' Annals of the CIRP, Vol. 38, No.2, pp. 617-626, 1989 https://doi.org/10.1016/S0007-8506(07)61129-9
  3. Cho, S. J., Kim, H. G., Ebihara, Tuskisima, 'The Study on the Development of Ultra Precision Centerless Grinder,' Journal of KSPE, Vol. 20, No. 6, pp. 11-14, 2003
  4. Lee, E. S., Cho, C. R. and Park, B. J., 'Development of Rotary Diamond Dressing System of Centerless Grinder for Ferrule Grinding,' Journal of KSPE, Vol. 20, No. 6, pp. 15-19, 2003
  5. Park, C. H., Hwang, J. H. and Cho, S. J., 'A Study on the Feeding System of Centerless Grinder for Machining the Ferrule,' Proc. of KSPE, pp. 65-69, 2002
  6. Kim, S. I., Park, C. H. and Cho, S. J., ' Structural Characteristic Analysis on the Hydrostatic Guide Way and Feeding System of a High-Precision Centerless Grinder for Machining Ferrules,' Trans. of KSME (A), Vol. 28, No. 7, pp. 896-903, 2004 https://doi.org/10.3795/KSME-A.2004.28.7.896
  7. Kim, S. I. and Cho, J. W., 'Structural Characteristic Analysis of a High-Precision Centerless Grinding Machine with Concrete-Filled Bed,' Journal of KSPE, Vol. 22, No. 2, pp. 172-179, 2005
  8. Park, C. H., 'Design and Performance Evaluation on the Motion Elements of Center less Grinder,' 3rd Mid-Evaluation Workshop of Intelligent Grinding System, 2004