Creeping motion type piezoelectricity straight line driver

Long stroke linear peristaltic piezoelectric actuator disclosed in the present invention having a nano-precision, including a base, a guide means adjustable clamp mechanism, adjustable intermediate drive mechanism, the output shaft with flange, fixed clamping support frame. Fixing base for fixing a clamp bracket clamp for fixing double parallel straight guide rod fixed support frame, the guide plane is formed; adjustable intermediate drive mechanism and said output shaft with flange is fixed integrally and at free movement guide mechanism, the output shaft and the clamp with a small gap with a fixed support frame; An adjustable bolt clamp mechanism adjusting the gap between the clamp mechanism to the output shaft by adjusting the base and reaches zero clearance. Unique dual parallel guide rod linear guide structure of the present invention can not only ensure a high straightness, and avoids the problem of the long-running drive performance degradation, the drive is simple and compact, easy to install adjustable, easy to control, for precision application processing and precision motion platforms.