Piezo-stack driven type displacement magnification mechanism reinforced by bimorph piezoelectric members

摘要

This paper deals with fundamental characteristics of the mechanism which consists of lever and toggle mechanisms. The mechanism is chiefly actuated by twin multilayer piezoelectric actuators. It can locate minutely and quickly for mechanical working and handling of some minute and thin objects. The lever members were made from a bimorph type piezoelectric actuator. As they were connected by elastic joints, the mechanism has no clearance and no friction. The mechanism is based on two concepts.