齿轮成型铣刀的数控磨削砂轮轨迹算法研究  

Research on CNC Grinding Wheel Trajectory Algorithm of Gear Forming Milling Cutter

作　　者：徐娜 石致远 李启元[3] 郭旭阳 江磊[2] Xu Na;Shi Zhiyuan;Li Qiyuan;Guo Xuyang;Jiang Lei

机构地区：[1]东方电气集团科学技术研究院有限公司 [2]西南交通大学机械工程学院 [3]东方电气集团东方汽轮机有限公司

出　　处：《工具技术》2024年第8期84-90,共7页Tool Engineering

基　　金：四川省重大科技专项(2022ZDZX0003)。

摘　　要：加工齿轮成型铣刀时,易出现砂轮磨损、干涉等问题,增加了制造难度。针对齿轮铣刀精密制造需求,提出一种齿轮成型铣刀磨削轨迹算法。定义齿轮成型铣刀前刀面、顶后刀面、内后刀面、外后刀面的结构参数,构建了4个坐标系并分析了相应的转换矩阵,建立前刀面直线刃线、内切刃线、外切刃线的参数化数学模型;考虑齿轮成型铣刀的内外切齿的分布情况,针对不同的磨削工艺选用适应的砂轮进行加工,采用坐标变换矩阵描述砂轮运动方式,借助运动学原理推导了基于工件坐标系的砂轮磨削位姿的计算方法。基于VC++环境开发了相应的算法并进行仿真加工和实际加工,以验证所提算法的有效性。When machining gear forming milling cutter,it is easy to have problems such as grinding wheel wear and interference,which increases the difficulty of manufacturing.Aiming at the precision manufacturing requirements of gear milling cutter,this paper proposes a grinding trajectory algorithm for gear forming milling cutter.The structural parameters of the rake face,the top flank face,the inner flank face and the outer flank face of the gear forming milling cutter are defined.Four coordinate systems are constructed and the corresponding transformation matrices are analyzed.The parametric mathematical models of the straight edge line,the inner edge line and the outer edge line of the rake face are established.Considering the distribution of the internal and external cutting teeth of the gear forming milling cutter,according to different grinding processes,the adaptive grinding wheel is selected for processing,the coordinate transformation matrix is used to describe the motion mode of the grinding wheel,and the calculation method of the grinding pose of the grinding wheel based on the workpiece coordinate system is derived by means of the kinematics principle.The corresponding algorithm is developed based on VC++environment and a series of simulation and actual processing are carried out to verify the effectiveness of the proposed algorithm.

关 键 词：齿轮成型铣刀 数控磨削 砂轮轨迹 算法 

分 类 号：TG721[金属学及工艺—刀具与模具] TH162[机械工程—机械制造及自动化]