Dynamic Analysis of a High-Speed Grinding Spindle

Abstract:

This paper presents the effects of spindle system configuration on the dynamic and static characteristics of high speed grinding. A 3D physical mode of high-speed grinding motorized spindle system with rotation speed of 150m/s was provided. The motorized spindle system consists of bearings, rotor, stator, spindle housing and grinding wheel. Based on the finite element method (FEM), the static characteristics, dynamic and the transient response are analyzed based on the finite element analysis software NASTRAN. It is shown that the spindle overhanging, bearing span have a significant effort on spindle deflection. The dynamic analysis shows no resonance will happen during its speed range. The methods and solutions for the motorized spindle system design and engineering applications was given in this paper.

• Periodical: Advanced Materials Research (Volume 215)
• Pages: 89-94
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.215.89
• Online since: March 2011
• Authors: Jing Zhu Pang, Bei Zhi Li, Jian Guo Yang, Zhou Ping Wu
• Keywords: Dynamic Analysis, Finite Element Model (FEM), Grinder, Motorized Spindle, Static Analysis

References

[1] E. Abele, Y. Altintas, C. Brecher: Machine tool spindle units, CIRP Annals - Manufacturing Technology, Vol. 59 (2010), p.781–802.

DOI: 10.1016/j.cirp.2010.05.002

[2] S. Taylor, B.T. Khoo, D. Walton: Microcomputer optimization of machine tool spindle stiffnesses, International Journal of Machine Tools and Manufacture, Vol. 30(1990), p.151–159.

DOI: 10.1016/0890-6955(90)90049-o

[3] M. Qian S.Y. Jiang: Dynamic optimization of a high speed motorized spindle, China Mechanical Engineering, Vol. 16(2005), pp.24-28.

[4] W.R. Wang, C.N. Chang: Dynamic analysis and design of a machine tool spindle-bearing system, Journal of Vibration and Acoustics, Transactions of the ASME Vol. 116(1994), p.280–285.

DOI: 10.1115/1.2930426

[5] G. Hagiu, M.D. Gafiranu, Preload optimization: a high efficiency design solution for grinding machines main spindles, ASTM Special Technical Publication, No. 1247(1995).

DOI: 10.1520/stp14051s

[6] S.Y. Jiang, S.F. Zheng: A modeling approach for analysis and improvement of spindle-drawbar-bearing assembly dynamics, International Journal of Machine Tools & Manufacture, Vol. 50(2010), pp.131-142.

DOI: 10.1016/j.ijmachtools.2009.08.010

[7] Y.Z. Cao，Yusuf Altintas: A general method for the modeling of spindle-bearing systems, Journal of Mechanical Design(2004).

[8] S. Dai: Application manual of rolling bearing, Mechanical Industry Press (1993).

[9] Hongqi Li, Yung C. Shin: Analysis of bearing configuration effects on high speed spindles using an integrated dynamic thermo-mechanical spindle model, International Journal of Machine Tools & Manufacture, Vol. 44 (2004), p.347–364.

DOI: 10.1016/j.ijmachtools.2003.10.011

[10] H. Pittroff, U.A. Rimrott: Stiffness of machine tool spindles, ASME, Vol. 42 (1977), p.77.

[11] Ching YuanLin, JuiPinHung, TzuoLiangLo: Effect of preload of linear guides on dynamic characteristics of a vertical column–spindle system, International Journal of Machine Tools & Manufacture, Vol. 50 (2010), p.741–746.

DOI: 10.1016/j.ijmachtools.2010.04.002

[12] N. Lynagh, H. Rahnejat, M. Ebrahimi, R. Aini: Bearing induced vibration in precision high speed routing spindles, International Journal of Machine Tools & Manufacture, Vol. 40 (2000) , p.561–577.

DOI: 10.1016/s0890-6955(99)00076-0

[13] Osamu Maeda, Yuzhong Cao, Yusuf Altintas: Expert spindle design system, International Journal of Machine Tools & Manufacture, Vol. 45 (2005) , p.537–548.

DOI: 10.1016/j.ijmachtools.2004.08.021

[14] A.M. Sharan, S. Sankar, T.S. Sankar: Dynamic analysis and optimal selection of parameters of a finite element modeled lathe spindle under random cutting forces, ASME, Vol. 105 (1983) p.467–475.

DOI: 10.1115/1.3269130

[15] C. Brecher, G. Spachtholz, F. Paepenmüller: Developments for high performance machine tool spindles, Annals of the CIRP(2007).

DOI: 10.1016/j.cirp.2007.05.092