五轴机床的铣车转换编程及切削优化应用研究

Research on Milling and Turning Conversion Programming and Cutting Optimization Application of Five-axis Machine Tools

针对五轴数控机床加工新能源汽车电动机缸套铝合金零件时,需使用机床车削功能加工缸套内、外壁回转体形状的生产需求,研究运用宏指令在五轴复合机床上进行铣车转换编程应用,将机床主轴定向锁紧及安装车削刀具,并通过机床摇篮工作台内装置的力矩电机,使工作台具备高速旋转和抵抗车削加工抗力功能。分析五轴机床转换为立式车削中心后的加工受力情况,运用VERICUT软件模拟缸套零件车削加工过程,根据机床受力仿真图表和极限值设定调整切削深度和工件转速等加工参数,提高了缸套铣车复合加工精度的质量和效率。

When machining aluminum alloy parts of new energy automobile motor cylinder liner with five axis NC machine tool,it is necessary to use the turning function of machine tool to process the shape of rotating body on the inner and outer walls of cylinder liner.This paper studies the application of macro instruction five axis compound machine tool for milling conversion programming,locks the spindle of the machine tool in an orientation and installs the turning tool,and equipts the workbench with the function of high-speed rotation and resistance to turning with the torque motor installed in the workbench of the cradle of the machine tool.The machining stress of five axis machine tool after being converted to vertical turning center is analyzed.The virtual cutting function of VERICUT is used to simulate the turning process of cylinder liner aluminum alloy parts,and the cutting depth,width,feed rate and other parameters are set and adjusted according to the stress simulation chart and limit value.The reserch and application improve the accuracy,quality and efficiency of milling and turning compound machining of aluminum alloy parts.