五轴铣车机床加工铝合金变形模拟分析及应用  

Simulation Aalysis and Application of Aluminum Alloy Deformation Processed by 5-axis Milling Machine

作　　者：谈毅 韩伟 罗邦芬 胡伟锋 叶九星 TAN Yi;HAN Wei;LUO Bangfen;HU Weifeng;YE Jiuxing(School of Mechanical Engineering,Guangzhou City University of Science and Technology,Guangzhou 510812,China;Foshan Xingzhen Technology Co.,Ltd.,Foshan 528225,China)

机构地区：[1]广州城市理工学院机械工程学院,广东广州510812 [2]佛山星振科技有限公司,广东佛山528225

出　　处：《机械制造与自动化》2024年第5期58-61,67,共5页Machine Building & Automation

基　　金：2020年度广东省教育厅青年创新人才项目(52-CQ202002)。

摘　　要：针对五轴铣车复合机床加工电动汽车铝合金电动机壳薄壁零件时容易产生铝合金局部变形等缺陷问题,分析铝合金电动机壳的结构特点,阐述运用五轴机床的铣、车转换功能固定机床主轴便于安装车刀,使用力矩电机驱动工作台高速旋转,将电动机壳内壁加工转变为简单的车削加工。应用ANSYS有限元软件模拟分析不同车削深度时刀具与工件的摩擦生热、塑性变形和切削受力情况,根据模拟结果合理精准选择数控加工编程时的车削深度参数,从而减少铝合金零件加工变形缺陷,提高薄壁铝合金零件五轴加工的精度、质量和效率。To address the local deformation of aluminum alloy when machining thin wall parts of aluminum alloy motor housing of electric vehicle by five-axis milling machine,analyzes the structural characteristics of aluminum alloy electric casing,elaborates the accessibility of installing turning tools by using the conversion function of milling and turning of 5-axis machine tool to fix the spindle of the machine tool,and the application of torque motor to drive the table to rotate at high speed to transform the machining of the inner wall of the electric casing into simple turning.ANSYS finite element software was used to simulate and analyze the frictional heat generation,plastic deformation and cutting force.According to the simulation results,the turning depth parameters in nc machining programming were selected reasonably and accurately,so as to reduce the machining deformation of aluminum alloy parts and improve the five-axis machining precision,quality and efficiency of thin-walled aluminum alloy parts.

关 键 词：五轴机床 铣车加工 变形模拟 车削深度 受力分析 

分 类 号：TH164[机械工程—机械制造及自动化]