Abstract: A gripper device (10) is provided for mounting rubber elastic rings (5) on the inner wall (62) of a workpiece opening and/or on the exterior of a workpiece. The device includes a basic housing (12), forming jaws (14) that are displaced in relation to the basic housing (12) and bearing jaws (16). To displace the plate element together with the jaws that are located on the element in an axial direction, the element is provided with a piston (20) which engages in a piston cylinder (22) in the basic housing. The displacement of the jaws that are located on the plate element (18) is mechanically coupled by a common actuator (24) and the actuator (24) is driven by an actuator piston (25) that is located in the piston (20).

Abstract: The present disclosure relates to a gripper device (10) for mounting rubber elastic rings (5) on the inner wall (62) of a workpiece opening and/or on the exterior of a workpiece. Said device comprises a basic housing (12), forming jaws (14) that can be displaced in relation to the basic housing (12) and bearing jaws (16). To displace the plate element together with the jaws that are located on said element in an axial direction, the element is provided with a piston (20) which engages in a piston cylinder (22) in the basic housing. The disclosure is characterized in that the displacement of the jaws that are located on the plate element (18) is mechanically coupled by means of a common actuator (24) and that said actuator (24) is driven by an actuator piston (25) that is located in the piston (20).