聚晶金刚石螺旋刀电火花刃磨自适应测量路径规划  

Adaptive Measuring Path Planning for Electrical Discharge Grinding of Polycrystalline Diamond Spiral-blade Tool

作　　者：樊文刚[1] 史少华[1] 张翔[1] 叶佩青[1] 张辉[1] 闫虹[1] 

机构地区：[1]清华大学机械工程系,北京100084

出　　处：《应用基础与工程科学学报》2014年第4期804-817,共14页Journal of Basic Science and Engineering

基　　金：中国博士后科学基金特别资助(2014T70073);中国博士后科学基金(2012M510423);十二五科技重大专项(2011ZX04004-012);精密超精密制造装备及控制北京市重点实验室开放课题基金(PMEC201210)

摘　　要：针对聚晶金刚石螺旋刀电火花刃磨加工,提出一种自适应测量路径规划算法.基于数控解释器对宏指令和宏子程序的支持,综合考虑测量过程中复杂情况,通过使用带有逻辑判断及执行控制功能的数控程序来完成对刀具复杂刃口曲线的实际在线测量.算法操作性强,只需要用户为每个待测刀片提供一个测量参考点,而且对参考点位置也没有任何要求.加工仿真和切削实验结果表明,自适应测量路径规划算法能够使加工后的刀片刃口平整,外圆最大径向圆跳度保持在0.01mm内,满足质量和精度要求;同时算法可以有效减少人工操作时间,提高加工精度稳定性.For the Electrical Discharge Grinding （EDG） of Polycrystalline Diamond （ PCD ） Spiralblade Tool, an adaptive measuring path planning algorithm is developed. Based on the fact that the macro instruction and the macro subprogram are supported by the NC interpreter, considering complex situations during the measuring process, the actual online measurement of the tool＇ s complex cutting edge curve is realized by using the NC program with the logical judgment and execution control function. This method is feasible and only needs one measuring reference point for user. Besides, there is no any limit for the reference point＇ s position. Machining simulation and cutting experiment show that the adaptive measuring path planning algorithm meets the quality and accuracy requirement, since the machined blade edge is smooth and the maximum radial circle bound for the tool＇ s cylindrical surface of revolution is less than 0.01mm. Meanwhile,it can effectively reduce the artificial operation time and raise the stability of machining accuracy.

关 键 词：聚晶金刚石 电火花刃磨 螺旋刀 测量 路径 

分 类 号：TG580.65[金属学及工艺—金属切削加工及机床]