Pneumatic gripper and a device comprising a plurality of such grippers

摘要

The gripper (Pn) has a connecting unit for connecting a suction vent (1) with a vacuum circuit to make a seizure of an object by aspiration through the suction vent. A releasing unit releases the object by injection of pressurized gas in the suction vent. A pressurized gas injecting circuit comprises an injection conduit (41) that forms a venturi tube whose aspiration is produced in the vacuum circuit. The vacuum circuit includes a vacuum chamber (3) and a connection end fitting (2) for connecting the gripper to the vacuum chamber. Independent claims are also included for the following: (1) a method for seizure and releasing of an object through a pneumatic gripper (2) a module for gripping and transporting an object comprising a common case permitting changing selective state of control valves irrespective of a state of other valves of the gripper of the module.