平头立铣刀端齿平面型后刀面的磨削轨迹算法  

Tool Path Algorithm for Flat Type Flank Face of Flat End Mill End Teeth

作　　者：马忠宝 唐军 李勇[1] 江磊[1] MA Zhongbao;TANG Jun;LI Yong;JIANG Lei(School of Mechanical Engineering,Southwest Jiaotong University,Chengdu 610031,China)

机构地区：[1]西南交通大学机械工程学院,四川成都610031

出　　处：《机械制造与自动化》2021年第3期80-84,共5页Machine Building & Automation

基　　金：四川省智能制造与机器人重大科技专项(2019ZDZX0021)。

摘　　要：端齿后刀面是影响立铣刀铣削性能和加工质量的关键因素。基于具有齿过和齿偏中心结构特征的小尺寸平头立铣刀端齿刃线,提出了用于端齿平面型后刀面的磨削轨迹算法。该算法以砂轮端面为磨削面,可在保证磨削质量的同时,通过调整砂轮摆角和抬角等工艺参数,实现砂轮磨削姿态定义的灵活性,从而避免干涉。结合五轴机床运动原理,通过VC++编程求解砂轮刀位轨迹和NC程序。进行磨削仿真和实际加工试验,其结果最大几何误差不超过3%。The flank of end teeth is the key factor affecting the milling performance and machining quality of end mill.Therefore,a grinding trajectory algorithm for the flat flank of the end tooth based on the end qtooth edge line of the small-size flat-head end mill with the features of tooth over and center deviation was proposed.By the algorithm,the end face of the grinding wheel as the grinding surface was implemented.Meanwhile,with the ensured quality grinding,and by the adjustment of the process parameters such as the swing angle and the lifting angle of the grinding wheel,the flexibility of the definition of the grinding wheel grinding posture was achieved,thereby interference being avoided.Combined with the motion principle of the 5-axis machine tool,the trajectory of the grinding wheel tool position and the NC program were solved by VC++programming.The grinding simulation and actual machining test were conducted with the maximum geometric errors less than 3%.

关 键 词：平头立铣刀 平面型 端齿后刀面 磨削轨迹 

分 类 号：TH162[机械工程—机械制造及自动化]