Metal deforming – By plural tool-couples – With means to feed work between plural tool stations
Patent
1976-11-04
1977-09-20
Lanham, C.W.
Metal deforming
By plural tool-couples
With means to feed work between plural tool stations
10 12T, B21D 435
Patent
active
040488381
ABSTRACT:
A play-free positive reciprocation of a gripper-carrying cradle of a multi-stage press is described. A first drive shaft coupled to the main press drive has a contoured control cam disposed thereon, with the contoured surface of the disc being in constant engagement with a roller which is urged obliquely toward the axis of the first shaft. The roller is rotatably carried on a second shaft transverse to the first shaft. One end of the cradle is secured to the second shaft, while the opposite end is secured to the free end of a first elongated connecting rod that is pivotally mounted on the machine frame. A second identical connecting rod, also pivotally mounted in the frame, has its free end coupled to the second shaft. Upon a rotation of the control cam disc on the first shaft, the so-mounted cradle is positively reciprocated over each point of a flattened cyclic path, during which the grippers carried by the cradle execute workpiece-gripping and transfer movements in a conventional manner.
REFERENCES:
patent: 3165766 (1965-01-01), Wisebaker
patent: 3695088 (1972-10-01), Alvi
patent: 3717890 (1973-02-01), Weller
Crosby Gene P.
Lanham C.W.
Malmedie & Co. Maschinenfabrik
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