基于五轴数控的整体硬质合金钻头螺旋槽磨削方法研究  

Research on Spiral Groove Grinding Method of Solid Carbide Drills Based on Five-axis NC

作　　者：张照耀 郑君民 陈毅 赵剑峰 佟谣 Zhang Zhaoyao;Zheng Junmin;Chen Yi;Zhao Jianfeng;Tong Yao(School of Mechanical Engineering,Dalian Jiaotong University,Dalian,Liaoning 116028,China;不详)

机构地区：[1]大连交通大学机械工程学院,辽宁省大连市116028

出　　处：《工具技术》2022年第7期73-78,共6页Tool Engineering

基　　金：高档数控机床与基础制造装备科技重大专项(2018ZX04041001-008);辽宁省百千万人才工程资助项目;大连市第二批领军人才资助项目。

摘　　要：螺旋槽磨削是整体硬质合金钻头制造过程中的关键工艺,磨削过程中砂轮的几何形状和位姿决定了螺旋槽的槽型轮廓。提出了一种采用标准砂轮在五轴数控磨床上磨削螺旋槽的加工方法,采用基于包络理论建立的螺旋槽数学模型,利用解析几何建立非线性方程,求解标准砂轮安装角度和位姿参数。根据砂轮位姿参数,通过后置处理得到适用于五轴数控磨削加工的NC代码,并通过磨削仿真实验并测量仿真数据验证了该方法的可行性和准确性。Spiral groove grinding is a key process in manufacturing process of solid carbide drills.The geometry and position of grinding wheel in the grinding process determine the spiral groove profile.A method of grinding spiral groove with standard grinding wheel on five-axis CNC grinder is proposed.A mathematical model of spiral groove is established based on the envelope theory, and then a nonlinear equation is established by analytic geometry to solve the installation angle and position parameters of standard grinding wheel.Based on the grinding wheel pose parameters, the NC code suitable for 5-axis NC grinding is obtained by post-processing.The feasibility and accuracy of the method are verified by grinding simulation experiments and measuring simulation data.

关 键 词：螺旋槽 整体硬质合金钻头 砂轮位姿 五轴数控磨削 

分 类 号：TG713.1[金属学及工艺—刀具与模具] TH164[机械工程—机械制造及自动化] TP391[自动化与计算机技术—计算机应用技术]