Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Patent
1985-08-29
1987-03-31
Crane, Daniel C.
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
72402, 72311, 269289MR, 269156, 269233, 269 32, B21D 5300, B21D 1702
Patent
active
046531629
ABSTRACT:
A method for coining a precision corner break on an oil metering flat for a rotor of a power steering rotary valve is provided. The method comprises the first step of placing a workpiece to be coined in a first floating position set by a clamping and orientating device where the workpiece is generally aligned but adjustable for further coining orientation if necessary. The next step comprises engaging the workpiece with a plurality of circumferentially spaced coining dies. The workpiece floats from the first floating position to a second coining position upon engagement by the dies. The last step comprises coining the workpiece to a precision depth selectively adjustable by adjustment of a motion conversion means. The press assembly includes fixed and movable platens, the movable platen being powered by a power cylinder assembly to direct the movable platen in a longitudinal direction in the press. The motion conversion means comprises matched angle camming surfaces of the die assembly and a drive block fastened to the fixed platen. As the camming surfaces engage, the longitudinal movement of the movable platen is converted to a radial movement of the dies into the workpiece adjustable by adjustment of the depth position of the die assembly drive block.
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Ferguson Donald E.
Germovsek Dennis L.
Buckeye International Inc.
Crane Daniel C.
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