Fluid-operated gripping device has safety device to divide gripping movement of movable grippers based on relative position of grippers into high power stage at end of gripping movement and safety phase at upstream of high power stage

摘要

The fluid-operated gripping device (1) has relatively movable grippers (3,4) which are driven in relative to one another by fluidic pressure medium applied fluidic driving force for the grasping of an object in gripping movement (5a). A safety device (24) divides the gripping movement of movable grippers based on the relative position between the grippers into high power stage at the end of the gripping movement and safety phase at the upstream of high power stage while fluid drive force during safety phase is reduced in comparison with the high power stage.