Thermal Characteristics Finite Element Analysis and Temperature Rise Experiment for High Speed Motorized Spindle

Abstract:

The thermal characteristics of the motorized spindle determines maching qualities and cutting capabilities, and is one of the important factors influencing the precision of the high speed NC machine tool. To improve the performance of the high speed machine tool, it is important to study the thermal characteristics of the motorized spindle. It had been studied in two ways: one is finite element analysis by Ansys software, in which the finite element analysis model was built. According to the actual working condition, the heat source and the heat transfer coefficient of every part are calculated. On this basis, the temperature field and temperature rises were gotten in Ansys software. The other way is temperature rises experiment on the motorized spindle test platform. The result was shown in the form of curve. These two ways shown the same result: the highest temperature rise appears in the area of electromotor, then followed by the rolling bearing .The result provides the necessary theory basis for optimizing the structure of the motorized spindle and establishes a basis for the research and application about the high speed spindle.

• Periodical: Applied Mechanics and Materials (Volumes 52-54)
• Pages: 1206-1211
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.52-54.1206
• Online since: March 2011
• Authors: Huai Xing Wen, Mei Yan Wang
• Keywords: ANSYS, Experiment, Finite Element Analysis (FEA), Motorized Spindle, Thermal Characteristic

References

[1] Bossmans, B., Tu, J., 2001, A Power Flow Model for High Speed Motorized Spindles -Heat Generation Characterization, Journal of Manufacturing Science and Engineering, Vol. 123, 494-505.

DOI: 10.1115/1.1349555

[2] J drzejewski, J., Modrzycki, W., 1998, Improving machine tool accuracy using intelligent supervision model, CIRP International Seminar on Intelligent Computation in Manufacturing Engineering, Capri, 465-470.

[3] Kim, S.M., Lee S.K., 2001, Prediction of Thermo-elastic Behavior in a Spindle-bearing System Considering Bearing Surroundings, International Journal of Machine Tools & Manufacture, 41, 809-831.

DOI: 10.1016/s0890-6955(00)00103-6

[4] M. Voll, P. Ramer, H. Schulz, On the Way to a New Generation of Spindles, Sino-German Joint Symposium on High-Speed and High Precision Machining, National Cheng Kung University, Taiwan, March. (1999).

[5] J. -H. Lee, J. -H. Lee, S. -H. Yang, Thermal error modeling of a horizontal machining center using fuzzy logic strategy, Journal of Manufacturing Processes 3 (2) (2001) 120–127.

DOI: 10.1016/s1526-6125(01)70127-2

[6] M.H. Attia, L. Kops, Computer simulation of nonlinear thermoplastic behavior of a joint in machine tool structure and its effect on thermal deformation, Transactions of the ASME, Journal of Enginnering for Industry 101 (1979) 355–361.

DOI: 10.1115/1.3439518

[7] J. -H. Lee, S. -H. Yang, 2002, Statistical optimization and assessment of a thermal error model for CNC machine tolls. International Journal of Machine Tools and Manufacture, 42 (2002) 147–155.

DOI: 10.1016/s0890-6955(01)00110-9

[8] C. -H. Lo, J. Yuan, J. Ni, Optimal temperature variable selection by grouping approach for thermal error modeling and compensation, International Journal of Machine Tools and Manufacture 39 (1999) 1383–1396.

DOI: 10.1016/s0890-6955(99)00009-7

[9] A. Donmez, Smart Machining Systems, Manufacturing Engineering Laboratory, National Institute of Standards and Technology, www. mel. nist. gov/proj/sms. htm, (2005).

[10] Kennametal Inc., Dodeka Face Mills for Maximum Milling Performance for High Performance in Carbon and Stainless Steels, www. kennametal. com, (2008).

[11] P. Zeinski, High Speed Machining=Automation, Features Article on Modern Machine Shop, MMSonline. com, (2003).

[12] O. Maeda, Y. Cao and Y. Altintas, Expert Spindle Design System, International Journal of Machine Tools & Manufacture, 2004, pp.537-548.

DOI: 10.1016/j.ijmachtools.2004.08.021

[13] FAG Ultra, High Speed and Super Precision Spindle Bearings, Fukuda Corp., (2006).

[14] Bernd Bossmanns and Jay F. Tu, A thermal model for high speed motorized spindles, International Journal of Machine Tools &Manufacture, vol. 39, pp.1345-1366, (1999).

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

[15] Waycon Positionsmesstechnik Gmbh, Eddy Current, Series TX, www. waycon. de, (2005).