圆弧头立铣刀端刃CNC磨削仿真技术研究  

Research on CNC grinding simulation technology of torus end milling cutter's end edges

作　　者：刘建军[1] 黎荣[1] 程雪锋[1] 金晓波[2] 丁国富[1] 

机构地区：[1]西南交通大学先进设计与制造技术研究所,成都610031 [2]成都飞机工业(集团)公司技装设计所,成都610092

出　　处：《现代制造工程》2012年第10期84-89,共6页Modern Manufacturing Engineering

基　　金：国家新世纪人才计划基金项目(09-0665)

摘　　要：介绍一种圆弧头立铣刀端刃的通用建模及CNC磨削仿真技术。运用空间矢量旋转原理,对过中心和不过中心端齿刃线建立通用数学模型。基于所建立的精确刃线数模,研究了立铣刀端刃前、后刀面的磨削加工工艺并计算出砂轮的运动轨迹和刀轴矢量。开发了五轴数控磨床的后置处理程序和基于VERICUT软件的虚拟仿真环境,加工出三类不同齿数的立铣刀端齿模型,对获得的刀位数据正确性进行了验证。以两齿过中心的四齿平底立铣刀为例,通过测量仿真模型和加工实物的结构参数并与设计参数进行对比,验证了提出的磨削仿真技术的可行性。A technology on universal end edges model and CNC grinding simulation of torus end milling cutters is introduced. With the theory of space vector rotation, the universal mathematic model of end edges above center or not was builded. Based on the accurate cutting - edge model, the grinding processes of the end milling cutter end - edge rake ＆ flank faces were researched, and also the wheel＇ s moving path and tool axis vector were calculated. Meanwhile, the post processing program of five-axis NC grinder and the virtual simulation environment based on VERICUT software were developed, and three kinds of end-edge models with different tooth number were geted through grinding simulation ,which validated acquired cutter location data. Taking four ed- ges end milling cutter with two edges above center as example, the grinding simulation technology proposed was verified by meas- uring the structure parameters of simulation model and physical model, and comparing them with design parameters.

关 键 词：端刃过中心 空间矢量旋转 后置处理 VERICUT软件 磨削仿真 

分 类 号：V261[航空宇航科学与技术—航空宇航制造工程] TG714[金属学及工艺—刀具与模具]