Abstract: A piezoelectric actuator with integrated features to provide coarse position adjustment of a pushing threaded rod and also mechanically amplified piezo motion for fine position adjustment is presented here in three design variants. The mechanical amplifier houses one or more piezo stacks in longitudinal axis with preload to translate an amplified motion in the order of a few times in the transverse axis, perpendicular to the piezo stack motion. The piezo amplifier output travel is transmitted to the threaded rod with a ball at the end to push a desired surface for position adjustments and motion translation in application such as a mirror mount.

Abstract: A piezoelectric actuator with integrated features to provide linear displacement of a threaded rod is presented. One mechanism provides mechanically amplified piezo motion for high speed/short travel position scanning whereas the other provides a low speed/long travel piezo motorized position adjustment. Mechanical amplifier incorporates one or more piezo stacks in longitudinal axis with preload to translate an amplified motion in the order of a few times in the transverse axis, perpendicular to the piezo stack motion. The piezo amplified output travel is transmitted to the internally threaded features of the other mechanism where a screw with a ball at the end to push a desired surface for high speed scanning mode translation. The internally threaded feature of the other mechanism is also operated by a secondary piezo stack which produces slip-stick motion steps to rotate the screw in one direction or the other to produce a slow speed/long travel mode.

Abstract: A piezoelectric actuator with integrated features to provide linear displacement of a threaded rod is presented. One mechanism provides mechanically amplified piezo motion for high speed/short travel position scanning whereas the other provides a low speed/long travel piezo motorized position adjustment. Mechanical amplifier incorporates one or more piezo stacks in longitudinal axis with preload to translate an amplified motion in the order of a few times in the transverse axis, perpendicular to the piezo stack motion. The piezo amplified output travel is transmitted to the internally threaded features of the other mechanism where a screw with a ball at the end to push a desired surface for high speed scanning mode translation. The internally threaded feature of the other mechanism is also operated by a secondary piezo stack which produces slip-stick motion steps to rotate the screw in one direction or the other to produce a slow speed/long travel mode.

Abstract: A piezoelectric actuator with integrated features to provide coarse position adjustment of a pushing threaded rod and also mechanically amplified piezo motion for fine position adjustment is presented here in three design variants. The mechanical amplifier houses one or more piezo stacks in longitudinal axis with preload to translate an amplified motion in the order of a few times in the transverse axis, perpendicular to the piezo stack motion. The piezo amplifier output travel is transmitted to the threaded rod with a ball at the end to push a desired surface for position adjustments and motion translation in application such as a mirror mount.

Abstract: A portable workbench includes top members, a support structure, a frame, wheels and a toe plate. The top members lie in a common plane and define a working surface with opposing side portions that define clamping surfaces. The support structure supports the top members and permits selectively traversing at least one of the pair of top members toward another to permit a workpiece to be clamped therebetween. The frame includes collapsible legs. The wheels and toe plate are coupled to the frame adjacent to each other. The workbench is positionable in a raised position, a collapsed position and a hand truck position. The toe plate is movable from a retracted position to an extended position to permit the portable workbench to be employed as a hand truck.

Abstract: A portable workbench includes top members, a support structure, a frame, wheels and a toe plate. The top members lie in a common plane and define a working surface with opposing side portions that define clamping surfaces. The support structure supports the top members and permits selectively traversing at least one of the pair of top members toward another to permit a workpiece to be clamped therebetween. The frame includes collapsible legs. The wheels and toe plate are coupled to the frame adjacent to each other. The workbench is positionable in a raised position, a collapsed position and a hand truck position. The toe plate is movable from a retracted position to an extended position to permit the portable workbench to be employed as a hand truck.

Abstract: A portable workbench includes top members, a support structure, a frame, wheels and a toe plate. The top members lie in a common plane and define a working surface with opposing side portions that define clamping surfaces. The support structure supports the top members and permits selectively traversing at least one of the pair of top members toward another to permit a workpiece to be clamped therebetween. The frame includes collapsible legs. The wheels and toe plate are coupled to the frame adjacent to each other. The workbench is positionable in a raised position, a collapsed position and a hand truck position. The toe plate is movable from a retracted position to an extended position to permit the portable workbench to be employed as a hand truck.