基于热-结构耦合模型的高速电主轴温升特性分析与实验研究（英文）

Analysis and experimental study on temperature rise characteristics of electric spindle based on thermal-structural coupling model

为解决热变形对主轴寿命及加工精度的影响,对高速电主轴的温升特性进行研究。首先建立了电主轴的热结构耦合模型,然后利用ANSYS软件进行热态模拟,分析稳态温度场的分布以及电主轴的热变形情况,最后探讨了主轴转速与切削力的变化对电主轴温度的影响。研究结果表明:所用方法可有效模拟电主轴工作过程中温度场分布以及热变形,仿真与实验结果基本一致,为电主轴温度控制提供参考。

In order to solve the influence of thermal deformation on spindle life and machining accuracy,the temperature rise characteristics of high-speed motorized spindle was studied.Firstly,the thermal structure coupling model of motorized spindle was established,then the thermal simulation was carried out by using ANSYS software,and the distribution of steady-state temperature field and the thermal deformation of motorized spindle were analyzed.Finally,the influence of the change of spindle speed and cutting force on the temperature of motorized spindle was discussed.The results indicate that the method can effectively simulate the distribution of temperature field and thermal deformation in the working process of the motorized spindle,and the simulation results are basically consistent with the experimental results,which provide a reference for the temperature control of the motorized spindle.