大导程滚珠螺母螺旋槽分层包络微细硬车削技术  

Precision Turning Technology of High-lead Ball-nut Spiral Groove by Layered Envelope Method

作　　者：后加树 姚斌 闫笃政 郑奇[2] 李元斌 刘万山 何泽 Hou Jiashu;Yao Bin;Yan Duzheng;Zheng Qi;Li Yuanbin;Liu Wanshan;He Ze

机构地区：[1]厦门大学航空航天学院,福建省厦门市361005 [2]陕西汉江机床有限公司 [3]成都邦普切削刀具股份有限公司

出　　处：《工具技术》2020年第3期33-36,共4页Tool Engineering

基　　金：2018年智能制造综合标准化与新模式应用项目(工信部装函[2018]265号);中国博士后科学基金(2019M652256);滚珠丝杠副高效生产线关键技术研究与应用(2017ZX04019-001)

摘　　要：针对精密加工大导程滚珠螺母螺旋槽的技术难题,提出了分层包络法微细硬车削加工滚珠螺母螺旋槽方法,在平行螺母轴线刀杆上安装刀尖带圆弧的菱形可转位刀片,通过对法向截形等距偏移与坐标变换计算生成包络车削点,实现层层包络车削。以大导程滚珠螺母加工试验为例说明该方法可满足大导程滚珠螺母螺旋槽的加工精度要求,具有较大的技术应用价值。In order to solve the technical problem in the process of high-lead ball-nut grinding,the method of micro-hard turning the spiral groove by the layered envelope method is presented in this paper.A diamond-shaped indexable insert with a circular arc at the tip of the parallel nut axis is mounted on the cutter shaft.The enveloping turning points are generated by normal section offset and coordinate transformation.The nut raceway is processed layer by layer based on the enveloping turning points.In the end,taking the processing of the high-lead ball-nut as an example.The results show that this method can meet the machining precision requirements of the high-lead ball-nut and have great value in practice.

关 键 词：大导程滚珠螺母 螺旋槽 包络法 微细硬车削 

分 类 号：TG51[金属学及工艺—金属切削加工及机床] TH16[机械工程—机械制造及自动化]