基于ANSYS的KX-1电主轴热特性仿真分析  

Thermal Characteristic Simulation Analysis of KX-1 Motorized SpindleBased on ANSYS

作　　者：陈裕明 陈鹏满 王柱 杨传刚 王天雷 Chen Yuming;Chen Pengman;Wang Zhu;Yang Chuangang;Wang Tianlei(Jiangmen Kelson Industry Ltd.,Jiangmen,Guangdong 529000,China;Faculty of Intelligent Manufacturing,Wuyi University,Jiangmen,Guangdong 529020,China)

机构地区：[1]江门凯信科技实业有限公司,广东江门529000 [2]五邑大学智能制造学部,广东江门529020

出　　处：《机电工程技术》2022年第10期169-173,共5页Mechanical & Electrical Engineering Technology

基　　金：广东省科技科技型企业中小企业创新基金项目(编号:2012CY141)。

摘　　要：影响高精度机床加工误差的主要为热误差,约占机床总误差的40%~70%,其中电主轴的热变形是最为直接的因素。介绍了KX-1电主轴结构特点,计算了电主轴的热载荷、热边界条件,采用软件Workbench建立了电主轴有限元模型,进行了电主轴热-结构耦合分析。仿真结果表明,无冷却系统的电主轴最高温度达256.53℃,位于定子与转子相邻部位;设置冷却系统后电主轴最高温度为60.448℃,位于前轴承处。对设置冷却系统的电主轴进行稳态热分析,沿轴向(X向)最大变形值为23.179μm,位于前端;轴芯总的热变形为22.636μm,精密加工时须进行热误差补偿。The main factor affecting the machining error of high-precision machine tools is thermal error,which accounts for about 40%~70%of the total error of machine tools.The thermal deformation of motorized spindle is the most direct factor.The structural characteristics of KX-1 motorized spindle was introduced,the thermal load and thermal boundary conditions of the motorized spindle was calculated,the finite element model of the motorized spindle by using the software workbench was established,and the thermal structural coupling analysis of the motorized spindle was carried out.The simulation results show that the maximum temperature of motorized spindle without cooling system is 256.53℃,which is located near the stator and rotor.After setting the cooling system,the maximum temperature of the motorized spindle is 60.448℃,which is located at the front bearing.Conduct steady-state thermal analysis for the motorized spindle with cooling system,and the maximum deformation value along the axial direction(X direction)is 23.179μm,at the front end.The total thermal deformation of the shaft core is 22.636μm.Thermal error compensation must be carried out during precision machining.

关 键 词：电主轴 热生成 热变形 有限元分析 

分 类 号：TG502[金属学及工艺—金属切削加工及机床]