高速电主轴定比传动自动松锁刀系统研究  

Research on Automatic Loosening and Locking Tool Systemof High-speed Electric Spindle Constant Ratio Transmission

作　　者：张晓洋 李然[1] 赵国华[1] 王生怀[1] 李书涵 ZHANG Xiaoyang;LI Ran;ZHAO Guohua;WANG Shenghuai;LI Shuhan(School of Mechanical Engineering,Hubei University of Automotive Technology,Shiyan 442002,China)

机构地区：[1]湖北汽车工业学院机械工程学院,湖北十堰442002

出　　处：《机械工程师》2023年第8期18-21,共4页Mechanical Engineer

基　　金：国家自然科学基金项目(51675167);湖北省教育厅科研项目(Q20201806)。

摘　　要：为了解决高速电主轴自动松锁刀系统夹紧力不恒定的问题,基于弹性理论,对刀具夹紧力数学模型进行了深入研究,确定了影响刀具夹紧力恒定的主要因素;基于定比传动原理,设计了一种能够实现定比传动的谐波行星齿轮减速结构,利用行星齿轮结构代替原有的薄壁轴承和波发生器,解决了滑差问题;基于PLC控制理论,对伺服控制系统进行了研究,改善了由于柔轮弹性变形导致的中间传动机构传动精度不高的问题,实现了闭环控制刀具夹紧力恒定。该系统具有参数设定输入、数据显示输出、刀具状态监测等功能。In order to solve the problem that the clamping force of the high-speed electric spindle automatic loosening and locking tool system is not constant,based on the theory of elasticity,the mathematical model of the tool clamping force is studied,and the main factors affecting the constant tool clamping force are determined.Based on the principle of fixed-ratio transmission,a harmonic planetary gear reduction structure capable of realizing constant-ratio transmission is designed,and the planetary gear structure is used to replace the original thin-walled bearing and wave generator,thereby solving the problem of slippage.Based on the PLC control theory,the servo control system is studied,which can solve the problem of low transmission precision of the intermediate transmission mechanism caused by the elastic deformation of the flexspline,and realize the constant closed-loop control of the tool clamping force.The system has the functions of parameter setting input,data display output,tool status monitoring and so on.

关 键 词：定比传动 伺服控制 PLC 结构设计 电主轴 

分 类 号：TH122[机械工程—机械设计及理论] TP273[自动化与计算机技术—检测技术与自动化装置]