刀具设计与安装参数对车齿加工刀具跃程量的影响  

Influences of Cutter Design and Installation Parameters on Overtravel for Power Skiving Tools

作　　者：徐伟 贾康[2,3] Xu Wei;Jia Kang

机构地区：[1]庆安集团有限公司,西安市710077 [2]西安交通大学大学现代设计与转子及轴承系统教育部重点实验室 [3]西安交通大学机械工程学院

出　　处：《工具技术》2024年第11期82-86,共5页Tool Engineering

摘　　要：车齿加工能够对内齿结构进行高效高精加工,使其在新能源汽车与航空航天相关的齿轮制造领域得到广泛的关注与初步应用。针对台阶型内齿圈以及多联齿轮轴等紧凑退刀空间的复杂零件,无干涉加工是车齿成功实施的关键。由于车齿加工刀具与工件之间存在轴交角以及车齿加工中切削刃与工件齿槽表面之间复杂的空间展成关系,导致刀具跃程量的准确计算困难。本文从车齿加工接触线计算出发,提出了车齿加工刀具跃程量的准确计算方法,并进一步分析了刀具设计安装参数与跃程量之间的关系,为紧凑退刀空间约束下的车齿加工干涉分析、走刀量控制以及刀具优化设计提供理论指导与技术支持。Due to the high machining efficiency and precision for internal gears,power skiving has attracted widely attentions and perform preliminary application on the gear manufacturing in the field like new energy vehicles and aerospace.For the part with tight retract room requirement like internal gear with step structure and multi-gear shaft,interference-free the key of successful machining.However,the existence of shaft angle between power skiving tool and gear part and the complex spatial generating relationship between cutting edge and gear slot surface lead the calculation of overtravel of power skiving tool is difficult.Therefore,through calculation of generation curve for power skiving,the identification method of overtravel of power skiving tool is developed,and the influence of the cutter geometric and installation parameters on the overtravel are investigated,providing theoretical guidance and technical support for the interference analysis,tool path control,and tool optimal design of power skiving under compact tool retraction space constraints.

关 键 词：车齿 跃程量 退刀空间 无干涉 接触线 优化设计 

分 类 号：TG71[金属学及工艺—刀具与模具] TH122[机械工程—机械设计及理论]