Design of asymmetric microgripper with large displacement piezoelectric-driven based on flexible mechanism

LI Jing

doi:10.13873/J.1000-9787(2021)09-0101-03

Chinese

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Design of asymmetric microgripper with large displacement piezoelectric-driven based on flexible mechanism

更新时间：2025-09-11

- Design of asymmetric microgripper with large displacement piezoelectric-driven based on flexible mechanism
- Issue 9, Pages: 101-103+107(2021)
- 作者机构：
  
  河南工学院电子信息工程学院
- 作者简介：
- 基金信息：
- DOI：10.13873/J.1000-9787(2021)09-0101-03
  CLC： TH122
- Published：2021
- 稿件说明：
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LI Jing. Design of asymmetric microgripper with large displacement piezoelectric-driven based on flexible mechanism[J]. 2021, (9): 101-103+107.
DOI：

LI Jing. Design of asymmetric microgripper with large displacement piezoelectric-driven based on flexible mechanism[J]. 2021, (9): 101-103+107. DOI： 10.13873/J.1000-9787(2021)09-0101-03.

摘要

针对传统微夹钳输出位移小、夹持精度低的问题

设计一种大位移、高精度的三级放大非对称微夹钳。首先

完成微夹钳的结构设计

基于伪刚体模型计算出微夹钳理论放大倍数;其次对结构参数进行有限元优化

获取最优参数;最后通过有限元分析微夹钳性能。结果表明:设计的微夹钳工作空间占比大、反应灵敏、可平行夹持。在150 V最大电压下

无夹持对象时最大输出位移为381.97μm

实际放大比为19.1倍。与同类产品相比

有着较高的放大倍率和较高的夹持精度。

Abstract

In view of the problems of small output displacement and low clamping accuracy of traditional microgripper

a large displacement and high precision three-stage amplification asymmetric micro clamp is designed.Firstly

the structure design of the microgripper is completed

and the theoretical magnification of the microgripper is calculated based on the pseudo rigid body model.Secondly

the structure parameters are optimized by finite element method to obtain the optimal parameters.Finally

the performance of the microgripper is analyzed by finite element method.The results show that the working space of the microgripper is large

sensitive in response and can be held parallel.The maximum output displacement is 381.97 μm when there is no clamping object at 150 V maximum voltage μm.The actual amplification ratio is 19.1 times.Compared with the same products

it has a higher magnification and higher clamping accuracy.

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Related Institution

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