Abstract
This paper presents a new model for planar compliant microgripper with piezoelectric actuator. The microgripper body has two jaws and was designed with ten flexure hinges and was analyzed with Finite Element Analyses for three different shapes for flexure hinges: right circular, elliptic and corner filleted. Also, for each model the Finite Elements Method analyses were realized using three materials: brass, plastic, stainless steel and aluminum. A prototype made by brass with higher displacement flexure hinge shape was realized and characterized after comparison between Finite Elements Method analysis results. The microgripper used a stack type piezo actuator with 18 µm maximum stroke which closed the jaws simultaneous.
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