弧齿锥齿轮齿顶倒棱球面刀具加工方法研究  

Research of the Method of Chamfering Tooth Crest for Spiral Bevel Gear Using Spherical Cutter

作　　者：魏巍[1] 张连洪[2] Wei Wei Zhang Lianhong(School of Mechanical Engineering, Yangtze University, Jingzhou 434023, China Key Laboratory of Mechanism Theory and Equipment Design of Ministry of Education, Tianjin University, Tianjin 300072, China)

机构地区：[1]长江大学机械工程学院,湖北荆州434023 [2]天津大学教育部机构理论与装备设计重点实验室,天津300072

出　　处：《机械传动》2017年第9期36-40,50,共6页Journal of Mechanical Transmission

基　　金：国家自然科学基金(51275347);长江大学青年基金(2015cqn47)

摘　　要：为了实现弧齿锥齿轮高效齿顶倒棱加工,探索了球面刀具在通用加工中心上倒棱加工的可行性。创建了齿轮和刀具的实体模型,基于实体模型的碰撞分析,获得了倒棱加工参数的初始值。为了保证倒棱形状精度满足要求,提出了一种形状误差的定量测量方法。以倒棱形状误差最小化为目标,优化了倒棱加工参数。建立了倒棱加工的三轴、四轴和五轴仿真加工模型,仿真结果表明,采用球面刀具在三轴加工中心上可完成倒棱加工。若采用四轴或五轴加工中心,可利用多余的运动自由度控制刀具的切削位置,将刀具上不参与切削的部分去除后,刀具形状可由圆球简化为圆盘,五轴加工对应的刀具周长比四轴加工更长,相同转速下耐磨性更好。In order chamfering method with sp to realize chamfering tooth crest for spiral bevel gear efficiently, the feasibility of herical cutter and machining center is researched. The solid models of gear and cutter are established, the initial values of cutting parameters are obtained by collision analysis between gear and cut- ter. A quantitative measuring method for shape error is proposed in order to satisfy shape accuracy requirement of tooth crest. The cutting parameters of chamfering are optimized aiming to minimize shape error. Cutting mod- els of machining centers are established and cutting processes simulation are preformed, the results show that chamfering tooth crest for spiral bevel gear on 3 - axis machining center is feasible. Cutting positions on spheri- cal cutter can be controlled by redundant degree of freedom of movement if 4 - axis or 5 - axis machining center is available. When the segment of cutter which do not contact with the gear is removed, spherical cutter can be simplified to disk - shaped cutter which has longer circumference and slower wear speed.

关 键 词：弧齿锥齿轮 齿顶倒棱 球面刀具 仿真切削 

分 类 号：TG61[金属学及工艺—金属切削加工及机床]