渐开线修缘齿轮直齿梳齿刀的设计  

Design of Straight Tooth Cutter with Tip Relief of Involute Cylindrical Gear

作　　者：周湘衡[1] 

机构地区：[1]中钢集团衡阳重机有限公司

出　　处：《工具技术》2015年第8期51-53,共3页Tool Engineering

基　　金：原国务院重大技术装备项目(85-301-01-24国家级科技攻关);湖南省科技重大专项(2010FJ1003)

摘　　要：根据渐开线圆柱齿轮修缘的需要,为充分发挥梳齿工艺的技术优势,利用直线与圆弧相切的几何特性,优化梳齿刀基准齿形的齿廓修形曲线为圆弧,包络出外摆线对齿轮渐开线齿廓的齿顶附近进行有意的修削。探讨了在正前角切削工况下直齿梳齿刀的设计原理和方法,为齿轮修缘提供了一种优化、简捷有效的解决方法。According to the need of tip relief of involute cylindrical gear, in order to fully develop the technical ad-vantages of tooth hobbing, using the geometrical feature of tangency of straight line and curve and the reference curve tooth profile of optimized cutter, purposed trimming by epicycloid on gear involute tooth profile at top land area is formed. This paper discusses the design principle and methods of straight tooth cutter under condition of cutting at positive rake angle, thus providing an easy and effective way for gear tip relief.

关 键 词：基准齿形 优化设计 圆弧修形 外摆线 修缘 

分 类 号：TG702[金属学及工艺—刀具与模具] TG721