Study on micro-displacement worktable based on the compliant mechanism of motion reduction

In order to meet the requirement of low voltage and light weight in the space environment, a micro-displacement worktable based on the compliant mechanism of motion reduction is designed. It's driven by ultrasonic motor, and the flexure hinges was used to reduce the output displacement according to lever pricipal, which can adjust the micro-posture of the end of the robotic arm. The reduce factor and and the kinematics of the compliant mechanism of motion reduction were theoretical established and the analyses of the compliant hinges of displacement and maximum stress was done by finite element method. Results from fabrication and experiments testify the feasibility of the presented micro-displacement worktable.