Development Of Meso-Scale Microgripper with Large Displacement Amplification Ratio

Abstract

The microgripper has ability to handle and manipulate micron or sub-micron objects precisely. They have many applications in micro assembly, biology, tissue engineering etc. In this work microgripper new design approach is proposed. The design is fabricated by using wire cut EDM technique. Displacement and amplification factor are considered as most important parameters of microgripper. Optimization technique is performed in solid works to achieve high amplification ratio and large displacement for best microgripper. FEM analysis is performed on solid works geometry to measure all the performance characteristics of design at simulation level to ensure required and efficient working after fabrication. Piezoelectric sensor is used for driving mode because of its fast response, high sensitivity, and low power consumption. Results shows an amplification factor of 37.53um which is greater than maximum amplification factor mentioned in literature.