车齿刀前刀面几何构型对切削力和切削温度的影响  

Influence on Cutting Forces and Temperature of Gear Cutter Face Geometry Configuration

作　　者：蔡汉越 陈永鹏 刘鸿梁 李钢 Cai Hanyue;Chen Yongpeng;Liu Hongliang;Li Gang

机构地区：[1]重庆交通大学机电与车辆工程学院 [2]重庆工业职业技术学院机械工程与自动化学院

出　　处：《工具技术》2023年第5期92-96,共5页Tool Engineering

基　　金：国家重点研发计划(2020YFE0201000)。

摘　　要：车齿工艺具有生产效率高、适应齿轮类型广的优点,近年得到了快速发展。车齿刀几何结构复杂,其前刀面有平面、锥面和球面不同构型,对切削力与温度具有显著影响。通过建立三种典型前刀面构型的车齿刀模型以及具有对应切削刃空间切削轨迹的工件模型,对不同车齿刀的切削性能进行有限元仿真,实现对切削过程中各参数动态变化的预测,并分析选用不同前刀面几何构型对刀具主切削力和温度分布的影响。结果表明,球形前刀面构型切削力较另两种构型更小且更平稳,高温分布区域更少,适用于车齿刀实际加工。The gear skiving process has the advantages of high production efficiency and wide adaptation to gear types,and has been developing rapidly in recent years.The geometry of skiving tools is complex and the rake face has different configurations of flat,tapered and spherical surfaces,which have a significant impact on cutting forces and temperature.In this paper,three typical rake face geometries and workpiece models with corresponding cutting edge trajectories are established,the finite element simulation of the cutting performance of different cutting tools to predict the dynamic changes of the parameters during cutting is carried out,and the influence of the choice of different front face geometries on the main cutting force and temperature distribution of the tool is analyzed.The results show that the tool with spherical rake face configuration has a high degree of stability,with a lower and smoother cutting force than the other two,and the high temperature distribution area is less,making it suitable for the actual machining of the skiving tool.

关 键 词：车齿工艺 前刀面 切削力 切削温度 

分 类 号：TG721[金属学及工艺—刀具与模具] TH164[机械工程—机械制造及自动化]