Research on Milling Stability of High Speed Motorized Spindle

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Journal of Vibration and Shock ›› 2017, Vol. 36 ›› Issue (19) : 242-249.

Wen-tao Shan1, Xiao-an Chen2, Hong-chang Wang1,Cheng-taoYu1

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Abstract

Firstly, a bearing-rotor dynamical model of high speed motorized spindle has been established in this paper. And the transfer functions at the milling tool of this model have been analyzed. Using the works above, the milling stability model of motorized spindle system is modeled. Then, based on the D62D24A type motorized spindle, the weaken effect of speed on bearing dynamical stiffness is analyzed, and the first order inherent modal shape and inherent frequency is computed. And then milling stability of this system has been analyzed numerically and experimentally. At last, milling stability lobe diagrams of the system are analyzed under the influence of the rotating speed, the theoretical and experimental data describes the trend of milling stability of system.

Key words

high speed motorized spindle / dynamic model / milling stability

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Wen-tao Shan1, Xiao-an Chen2, Hong-chang Wang1,Cheng-taoYu1. Research on Milling Stability of High Speed Motorized Spindle[J]. Journal of Vibration and Shock, 2017, 36(19): 242-249

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