Steady-State Thermal Analysis and Temperature Control of High-Speed Permanent Magnet Synchronous Motorized Spindle

Abstract:

High-speed permanent magnet synchronous motorized spindle plays a crucial role in high speed grinding which could greatly improve the efficiency of cutting and reduce manufacturing cost. However, for high-speed machining, the spindle system usually generates excessive heat due to its complex structure and the high-speed rotation, resulting in the loss of grinding precision. To control and optimize the heat generation of the spindle, this paper develops a thermal model for the high-speed spindle system, and further analyzes the steady-state thermal property at different grinding speeds. Based on the result of analysis, the temperature of the spindle system is finally optimized with modified cooling system, providing a theoretical basis for the optimization of high-speed permanent magnet synchronous spindle system. After optimization, the temperature of stator reduce significantly to 33°C, which was 53°C before, accordingly the temperature of the rotor is decreased by 19°C.

• Periodical: Applied Mechanics and Materials (Volumes 44-47)
• Pages: 1943-1947
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.44-47.1943
• Online since: December 2010
• Authors: Zhou Ping Wu, Bei Zhi Li, Jian Guo Yang, Rui Jin Feng
• Keywords: High Speed Spindle, Steady-State Thermal Analysis, Temperature Control, Temperature Optimization

References

[1] J.S. Chen and W.Y. Hsu: Characterizations and models for the thermal growth of a motorized high speed spindle, International Journal of Machine Tools & Manufacture 43 (2003) 1163–1170.

DOI: 10.1016/s0890-6955(03)00103-2

[2] E. Creighton, A. Honegger, A. Tulsian and D. Mukhopadhyay: Analysis of thermal errors in a high-speed micro- milling spindle, International Journal of Machine Tools & Manufacture S0890-6955(09)00222-3, (2009).

DOI: 10.1016/j.ijmachtools.2009.11.002

[3] J. Guo, B. Zhang, S.H. Xiao and H. Zhao: Thermal contact analysis based on thermal properties of Spindle, Machine Tool and Hydraulic, 2006, in chinese.

[4] Su Dai: Rolling Machine Application Guide, Machinery Industry Press, 1993, in chinese.

[5] R A Burton and Staph H E: Thermally Activated Seizure of Angular Contact Bearing [J]. ASL E Trans, Vol. 10: 408-417, (1967).

DOI: 10.1080/05698196708972200

[6] Berd Bossmanns and Jay F. Tu: A Thermal Model for High Speed Motorized spindles. International Journal of Machine Tools & Manufacture，1999，VOI. 39: 1345一1366.

DOI: 10.1016/s0890-6955(99)00005-x

[7] K.J.H. Al-Shareeef, J.A. Brandon, On the effects of variations in the design parameters on the dynamic performance of machine tool spindle bearing system, International Journal of Machine Tools and Manufacture 30 (1990) 431–445.

DOI: 10.1016/0890-6955(90)90187-n