相切四圆弧谐波柔轮车齿加工及其刀具设计方法  

Gear Skiving and Tool Design Method for Manufacturing Tangent Quadruple Circular-arc Harmonic Flexsplines

作　　者：郭二廓[1,2] 徐甲 洪扬 刘畅 胡乐乐 Guo Erkuo;Xu Jia;Hong Yang;Liu Chang;Hu Lele(School of Mechanical Engineering,Jiangsu University,Zhenjiang 212013,China;Changzhou Engineering and Technology Institute of Jiangsu University,Changzhou 213164,China)

机构地区：[1]江苏大学机械工程学院,江苏镇江212013 [2]常州江苏大学工程技术研究院,江苏常州213164

出　　处：《机械传动》2024年第12期8-14,共7页Journal of Mechanical Transmission

基　　金：国家自然科学基金面上项目(52375056);江苏省自然科学基金面上项目(BK20221234)。

摘　　要：相切四圆弧谐波齿轮具有承载力强和传动平稳的显著优势。为满足相切四圆弧谐波齿轮的高效率、高精度加工要求,提出基于双自由度线面共轭理论的相切四圆弧谐波柔轮车齿加工及其刀具设计方法。通过建立车齿加工展成运动模型和相切四圆弧谐波柔轮多圆弧齿廓数学模型,推导出产形轮刀刃线与被创成齿面的双自由度线面共轭车齿啮合条件;并求解刀具共轭曲面和法面方程,得到无理论误差的车齿刀具法面刃形;最后,设计制造出基于端面切削刃的车齿刀具。通过仿真加工和切削实验,验证说明相切四圆弧谐波柔轮车齿加工及其刀具设计方法具有较高的加工精度。结果可为相切四圆弧谐波齿轮的高效、高精加工提供指导。The tangent quadruple circular-arc harmonic gear has the advantages of strong load capacity and transmission stability.In order to meet requirements of high efficiency and precision machining of tangent quadruple circular-arc harmonic gears,a method of gear skiving and manufacture of the tangent quadruple circular-arc harmonic flexspline was presented based on establishing the two-parameters conjugated tooth surface of the gear tooth.The kinematic model of skiving and the mathematical model of the tangent quadruple circular arc harmonic flexspline were established.Then the meshing equation of the two-parameters conjugated tooth surface between the generative cutter and the gear tooth surface was derived.The accurate cutting edges on the normal surface of the skiving tool were obtained by solving conjugated tooth surface and constructing normal equation of the tool.The skiving tool was designed and manufactured by using the cutting edges on the end surface.The simulation and cutting experiment have been carried out to verify the effectiveness of the proposed tool design method,which has a higher accuracy for machining the tangent quadruple circular-arc harmonic flexspline.The results could provide guidance for the high efficiency and high precision manufacturing of tangent quadruple circular-arc harmonic flexsplines.

关 键 词：车齿加工 相切四圆弧齿轮 共轭曲面 刀具设计 

分 类 号：TG721[金属学及工艺—刀具与模具] TH132.41[机械工程—机械制造及自动化]