基于柔性铰链混联的多自由度微进给工作台设计  

Design of Multi-DOF( Degree of Freedom) Feed Platform Based on Series and Parallel Form of Flexture Hinges

作　　者：张臣[1] 宋云 ZHANG Chen;SONG Yun(Nanjing University of Aeronautics ＆ Astronautics,College of mechanical and electrical engineering,Nanjing 210016,China)

机构地区：[1]南京航空航天大学机电学院,江苏南京210016

出　　处：《机械制造与自动化》2018年第3期57-62,共6页Machine Building & Automation

基　　金：研究生创新基地(实验室)开放基金项目(kfjj20150518);中央高校基本科研业务费专项资金项目(NS2016048)

摘　　要：超声椭圆振动辅助切削是一种具有广阔应用前景的加工方法,广泛应用于微纳织构的切削加工中。为了实现自由曲面上微纳织构的超声椭圆振动辅助切削,采用多自由度微进给机构是一种有效的解决方法,现对其中的多自由度微进给机构的设计和仿真进行了研究,从柔性铰链混联的结构设计、运动学建模与有限元仿真方面探究了多自由度微进给运动实现的方法。对设计的多自由度微进给工作台空间运动进行了理论分析和多自由度运动分析,建立了运动学模型;并运用有限元方法对设计的装置进行了静力校核和动力瞬态分析,验证了多自由度微进给工作台的多种运动输出形式。Cutting assisted with ultrasonic elliptical vibration is a processing method which has broad application prospect and is widely used in micro/nano texture machining. To realize the cutting assisted with the ultrasonic elliptical vibration of micro/nano texture on the free surface,the multi-DOF micro-feed stage should be used. This is an effective method. This paper makes a study of the design and simulation of the multi-DOF micro-feed stage,from the structure design of mixed flexture hinge,the kinematic modeling and finite element simulation,theoretically analyzes the workspace of the designed multi degree of freedom micro feed platform and establishes its kinematic model and then uses the finite element method to conduct the static and dynamic analysis and verifies a variety of its output motion.

关 键 词：柔性铰链 并联结构 自由度 微进给 有限元仿真 

分 类 号：TH164[机械工程—机械制造及自动化]