Workpiece clamping mechanism for multiple station transfer machines utilizing rotary drive

摘要

A multiple station transfer machine in which workpieces are progressively transferred from work station to work station with workpieces individually clamped at each station by a movable clamp. A unified mechanism for clamping the workpieces at individual stations has a common rotary actuator which can function simultaneously at each work station. The clamping member is arranged to adapt to various clamping positions independently of the stroke of the actuator. A two-stage cam operates on each clamping member driven by a preloaded spring in response to motion of the common rotary movable actuator.