两级位移放大微夹持器的研究  

Research on Micro-gripper with Two Grades Displacement Amplifier

作　　者：陈海初[1] 王振华[1] 李满天[1] 孙立宁[1] 

机构地区：[1]哈尔滨工业大学机器人研究所,黑龙江哈尔滨150001

出　　处：《压电与声光》2005年第3期300-302,共3页Piezoelectrics & Acoustooptics

基　　金：国家"八六三"计划基金资助项目(2003AA404190)

摘　　要：微夹持器是完成微操作、微装配作业任务的重要工具,其体积、质量、张合量、微夹持力等是微夹持器设计过程中的重要指标。利用压电陶瓷作为微驱动元件设计了一种具有两级位移放大的微夹持器,并采用有限元软件对其进行张合量、微夹持力的分析。经实验测试,验证了所设计的微夹持器的合理性和实用性。Micro-gripper is a very important implement in executing micro operation, micro assembly and other micro tasks. The volume, mass, gripping displacement and micro gripping force of micro-gripper are very important to be considered in designing a micro-gripper. A PZT driving micro-gripper with two grades displacement amplifier is designed in this paper. After modeling the micro-gripper, finite element method (FEM) is used to analyze on gripping displacement and micro gripping force. The experimental results prove that the micro-gripper is reasonable and practical.

关 键 词：微操作 微夹持器 压电陶瓷 有限元法 有限元分析 

分 类 号：TP242.2[自动化与计算机技术—检测技术与自动化装置]