Metal deforming – With means to drive tool – With means to permit tool positioning
Patent
1985-04-12
1986-09-30
Bray, W. D.
Metal deforming
With means to drive tool
With means to permit tool positioning
72448, B21J 1300
Patent
active
046141081
ABSTRACT:
A die cart comprising a carriage adapted to be moved along track means toward and away from a press; a turntable mounted for rotary movement on the carriage and having a first load surface at one end thereof and a second load surface of the opposite end thereof; and a transfer device mounted on the turntable for fore and aft movement over the first and second load surfaces and having coupling means for engaging a die to push or pull a die positioned on either load surface onto or off of the bed of the press. The cart includes a first hydraulic motor carried by the carriage for moving the carriage along the track means; a second hydraulic motor carried by the turntable for rotating the turntable on the carriage; and a third hydraulic motor carried by the turntable for moving the transfer device fore and aft over the first and second load surfaces. The cart further includes a hydraulic pump; an air motor arranged to drive the hydraulic pump to create a source of pressurized hydraulic fluid; hydraulic valve means for selectively routing the pressurized hydraulic fluid to the first, second and third hydraulic motors; and air control means for selectively actuating the hydraulic valve means.
REFERENCES:
patent: 3831427 (1974-08-01), Lee
patent: 4408521 (1983-10-01), Schelli et al.
Bolle Fred
Herronen John R.
Wright Joseph M.
Bray W. D.
Tek-Matik, Inc.
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