| 摘要 |
A multiple station transfer machine in which workpieces are progressively transferred from station to station requires that the workpieces be individually clamped at each station by a movable clamp. The present device includes a unified mechanism at each station for clamping the workpieces at individual stations by a common linearly movable actuator which can function simultaneously at each station. The clamping mechanism is arranged to adapt to various clamping positions at individual stations independently of the stroke of the common actuator. This is accomplished by a roller mounted, two-stage cam operating on a clamping member and driven by a preloaded spring in response to the linearly movable actuator. The unified mechanisms can be placed in various positions of orientation while being actuated by the same linear actuator. |
