Work holders – With fluid means
Patent
1990-06-28
1991-11-26
Hartman, J. J.
Work holders
With fluid means
269 27, 269 55, B23Q 300
Patent
active
050676946
ABSTRACT:
An automated machining center performs various operations on a work piece which is locked onto the pallet using a hydraulically operable fixture. An automatic coupling system according to the invention provides for automatic coupling between the pallet and a source of hydraulic power to selectively lock or release the work piece on the pallet. The coupling system includes a cam ring associated with the pallet in axial alignment with a rotatable locking rod associated with a base unit. The locking rod is axially mounted to a dual acting hydraulic cylinder itself axially mounted to a carriage which is moveable relative to the base unit. Alternate extension and retraction of the cylinder causes the locking rod to selectively engage the cam ring to draw the carriage towards the pallet to provide automatic coupling between quick coupler sockets on the carriage and quick plug couplers on the pallet to provide a fluid communication line between a source of power and the hydraulic fixture. Subsequent linear movement of the locking rod results in rotation thereof by the cam ring for decoupling of the quick coupler socket and plug.
REFERENCES:
patent: 3854889 (1974-12-01), Lemelson
patent: 4506441 (1985-04-01), Yamanaga et al.
patent: 4669161 (1987-06-01), Sekelsky, Jr.
patent: 4671728 (1987-06-01), Clark et al.
Catalog-Carr Lane Roemheld Mfg. Co., pp. 58 and 59.
Hartman J. J.
Owatonna Tool Company
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