A three-stage amplification piezoelectric-actuated micro-gripper with adjustable output displacement: design, modeling, and experimental evaluation
Author(s): |
Dongmei Xu
Fan Yang Simiao Yu Chao Xu Xianglong Liu Zhiwei Zhao Xuhui Zhang Shuaitian Li Huixi Yang Qi Lu |
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Medium: | journal article |
Language(s): | English |
Published in: | Smart Materials and Structures, 21 August 2023, n. 9, v. 32 |
Page(s): | 095033 |
DOI: | 10.1088/1361-665x/aceae4 |
Abstract: |
With the development of science and technology, the performance requirements of micro-gripper are getting higher and higher. Therefore, this paper designs a new piezoelectric-driven micro-gripper with large and adjustable output displacement, which can adjust the output range and compensate the errors caused by flexible mechanism. By adjusting the output displacement, the micro-components of different sizes can be clamped. The three-stage amplification mechanism is adopted, which utilizes triangle and lever amplification. Using the pseudo-rigid body method, the flexible hinge is analyzed; the statics, kinematics and dynamics models are established. Through finite element method, the magnification ratio of the micro-gripper is obtained, then the structure of the micro-gripper is further optimized. The output displacement and the magnification of the single-arm of the micro-gripper under 135 V are 223.8 μm and 24.2 times, respectively. This paper provides a basis for the wide application of micro-gripper. |
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data sheet - Reference-ID
10734209 - Published on:
03/09/2023 - Last updated on:
03/09/2023