MICROGRIPPER

摘要

A microgripper comprising a planar linear actuator with a fixed end (5), a working end and first and second prestressed adjusting elements made of a structured shape memory alloy foil, wherein forces are produced in the actuator and adjusting elements in opposite directions by means of phase transformation. The gripper has a pair of symmetrically arranged gripper jaws with opposing gripping surfaces whose rear faces form an angle of 0-180 DEG . One side of the first adjusting elements is arranged on said rear faces. The other side thereof is arranged on the working end of the linear actuator. The gripping surfaces can move in relation to each other via the regulating distance of the linear actuator and by deformation of the first flexible element (2). The first and second adjusting elements are fixed to the rear faces at a given distance. One side of the second adjusting elements is fixed to the two ends of the rear faces of the gripper jaws facing away from the gripping surfaces. The other side of said elements is also fixed.