R&I Manufacturing

DURA-GRIP

Angular Grippers

DURA-GRIP Part Placement Devices are designed to provide a low cost gripping unit for use on transfer mechanisms. These air operated units grip parts internally or externally offering the designer a wide latitude in finger tooling arrangements.

Available in two or three finger grip models, DURA-GRIP units are ruggedly constructed with a minimum of moving parts. Utility tapped holes permit mounting the unit from the top or the side with additional cap styles for dovetail mounting. These same holes can be used to mount "stripper" devices too. All units are shipped completely assembled, ready for mounting and attaching tooling.

The body is anodized high strength aluminum, fingers are hardened tool steel. Maximum pressure, 100 psi. HD heads are available in all sizes of the GH series. These heads' toggle linkages are arranged to have the inward motion of the finger occur on the full (bore) side of the piston. Consult factory for gripping forces. An optional finger positioning sensor is available on all heads. The built-in proximity switch can be set to indicate either fingers opened or fingers closed.

HOW DURA-GRIP WORKS
Click Here to see how the Dura-Grip Works

            Operation of the DURA-GRIP unit must be controlled by a 4-way air valve in the transfer mechanism. The air valve directs the air into the lower chamber port where the air pressure forces the piston to rise, thereby opening the fingers. Next, the air valve directs the air into the upper chamber port moving the piston down to close the fingers.
            A bottom adjusting screw can be set to stop the downward travel of the piston thereby adjusting the closing of the fingers.
            On dovetail mounting heads, a top adjusting screw adjusts the opening of the fingers. Maximum finger holder movement is 5° (10° included angle). "W" models are also available giving 10° (20° included angle).
            "D" models have a double extended piston rod extending through the bottom cap. This gives greater stability and longer life where tooling loads are heavy.
            All heads are available with one fixed and one moving finger. Consult factory for details. External dimensions remain the same.

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