Work holders – With fluid means – Cylinder-piston means in series with additional positioning...
Patent
1986-03-24
1988-05-10
Schmidt, Frederick R.
Work holders
With fluid means
Cylinder-piston means in series with additional positioning...
269 93, 269237, 269227, 269289MR, 269232, 269234, 269254R, B23Q 308
Patent
active
047430028
ABSTRACT:
An improved mechanism for automatically clamping a die tool to a press bed or press ram. The automatic die clamp is self-locking and self-compensating to provide a failsafe operation in the clamped position and thus the mechanism retains the clamp in the clamped position. A ramp is provided to guide the movement of a wedge which wedge movement controls the movement of a clamping member. A spring bias may be provided as an optional feature to assist in the self-locking. Release of the clamp requires the application of an external force to overcome the locking of the teeth.
REFERENCES:
patent: 3347542 (1967-10-01), Merick, Jr.
patent: 3663115 (1972-05-01), Vindez et al.
patent: 3858867 (1975-01-01), Claycomb
patent: 3970296 (1976-07-01), Rameson
patent: 4500081 (1985-02-01), Carossino
Hartman Judy J.
Schmidt Frederick R.
Schreiber Manufacturing Co., Inc.
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