GB1352547A - Forging manipulators - Google Patents

Abstract

1352547 Forging manipulators ALLIANCE MACHINE CO 10 June 1971 [11 June 1970] 19883/71 Heading B3H A forging manipulator of the type having a wheeled carriage 10 with a peel 13 suspended thereon for horizontal, vertical and skewing movement relative to the carriage so that a workpiece carried by the peel jaws 36 automatically moves to its normal orientation when released by the forging tools of a press has its peel mounted in the carrier 21 suspended by a resiliently compressible fluid member and supported on two pairs of links 18, 19 forming part of a parallelogram linkage. The links 18 are pivotally connected between the carrier at 20 and one end of a lever 23 pivoted to the frame 25 of the carriage. The links 19 are pivotally connected between the rear of the carrier 21 and a lever 29 pivoted to the links 18. An hydraulic cylinder 40 urges the peel longitudinally of the carriage which is moved continuously by hydraulic motors driving sprockets 15 engaged with chains 16. When the workpiece is held by the forging tools fluid is displaced from the cylinder 40 and stored in a pressure accumulator (not shown). Thus when the tools release the workpiece the peel is accelerated to place a fresh portion of workpiece in the press. The peel can be rotated by an hydraulic motor 13a. Any sideways movement of the peel is cushioned by hydraulic cylinders 44a. An hydraulic life cylinder 31 is provided between the carriage and the lever 23 and has a pneumatic air cushion 35 which acts as the resiliently compressible fluid member.