高速电主轴铣削稳定性研究

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振动与冲击 ›› 2017, Vol. 36 ›› Issue (19) : 242-249.

论文

高速电主轴铣削稳定性研究

单文桃1，陈小安2，王洪昌1，俞成涛1

作者信息 +

Research on Milling Stability of High Speed Motorized Spindle

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

Author information +

文章历史 +

摘要

本文首先建立了高速电主轴轴承-转子动力学模型，分析了高转速与铣刀刀尖点处传递函数的关系，以此为基础建立了高速电主轴铣削稳定性模型，然后以D62D24A型高速电主轴为例，分析转速对轴承动态支承刚度的“弱化”作用，计算系统第一阶径向振动固有振型，理论分析并且实验验证系统第一阶径向振动固有频率的变化趋势，最后分析了转速影响下的系统铣削稳定瓣图，实验验证了高转速下系统铣削稳定性能的变化趋势。

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.

导出引用

单文桃1，陈小安2，王洪昌1，俞成涛1. 高速电主轴铣削稳定性研究[J]. 振动与冲击, 2017, 36(19): 242-249

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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