Study on the influence of machine tool spindle radial error motion resulted from bearing outer ring tilting assembly-猫眼课题宝

轴承外圈倾斜装配对机床主轴径向误差运动的影响研究

DOI：

10.1177/0954406218802324

发表时间：

2018-09

期刊：

Proceedings of the Institution of Mechanical Engineers - Part C: Journal of Mechanical Engineering Science

影响因子：

通讯作者：

中科院分区：

其他

文献类型：

作者：

Li Xiaohu;Yan Ke;Lv Yifa;Yan Bei;Dong Lei;Hong Jun

为揭示轴承外圈倾斜装配条件下主轴径向误差运动特性，分析了主轴径向误差运动的数学方法。然后，在真实的工作条件下，对试验台的固有频率进行了研究。设计了试验系统和试验方法，对轴承外圈倾摆装配状态下主轴的轴向热位移、径向误差运动和模态特性进行了测试。结果表明，热位移试验过程中主轴前端发生轴向热伸长和径向垂直上升。在相同的外隔圈不平行度下，同步误差运动和总误差运动一般随主轴转速的增加而增加，并在一定转速下达到峰值。

To reveal the spindle radial error motion characteristics in condition of bearing outer ring tilting assembly, mathematical method on spindle radial error motion were analyzed. Then, in real operation condition the natural frequency of the test rig was investigated. Experimental system and methods were designed to test axial thermal displacement, radial error motion and modal characteristic of spindle in condition of bearing outer ring tilting assembly. Results show that axial thermal extension and radial vertical rising of spindle front-end occurs during thermal displacement test. With the same outer spacer nonparallelism, the synchronous error motion and total error motion generally increase with spindle rotation speed, and reach a peak at certain rotation speed.