Metal working – Plural diverse manufacturing apparatus including means for... – With means to feed work intermittently from one tool station...
Patent
1988-01-07
1989-02-28
Briggs, William
Metal working
Plural diverse manufacturing apparatus including means for...
With means to feed work intermittently from one tool station...
74822, 91 35, B23Q 526
Patent
active
048073385
ABSTRACT:
The combination of an index table journaled upon a support upon a vertical axis and a computer controlled hydraulic drive including a hydraulic motor connected to the index table. A manifold is mounted upon the support and has a pressurized hydraulic chamber with a hydraulic accumulator mounted upon the manifold in communication with its chamber. A hydraulic power supply is connected to the manifold for pressurizing the accumulator at a pre-set level. An electro-hydraulic proportional valve having a power connector and a hydraulic directional control valve has an intake connected to the accumulator and a pair of outlet feed conduits connected to the hydraulic motor for selectively receiving pressurized hydraulic fluid from the proportional valve for feeding the motor at a predetermined flow, rate and duration for controlled rotational speed, acceleration and duration of incremental rotation of the motor and index table. A computer including a controller having a power source and a power lead is connected to the power connector for feeding bi-directional variable voltage electric command signals to the proportional valve in accordance with a pre-selected program.
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Catalogue of AB Hagglund and Soner, Located S-89042, Mellansel, Sweden entitled "Hydraulic Motors Viking", Publication 611-02161, Edition 4, US 86-09-13, pp. 1-8.
Catalogue of Encoder Products Co. located at 1601B Dover Rd., Sandpoint, Idaho 83864-0868, entitled "EPC Encoder Products Co.-7252 Motion Controller-The Friendly Controller, Programmed in BASIC", pp. 1-8.
Catalogue of Abex Corporation, Dension Division located at 1220 Dublin Road Columbus, Ohio 43216, entitled "A More Powerful Way", The fully integrated Electrohydraulic Proportional Directional Valve, Series D1P-06, Bulletin 1403.3, pp. 1-4.
Briggs William
J. E. Myles, Inc.
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