Machine for bending sheet and plate metal through dual wedge sys

Metal deforming – With means to drive tool – Including cam-actuated support

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Details

100271, B21D 502, B21J 918

Patent

active

058786180

ABSTRACT:
A press brake, or other machine for bending sheet metal or plate metal, comprises a frame, a bed mounted to the frame, and a ram movably mounted to the frame. An assembly for moving the ram relative to the bed to bend sheets and plates of metal positioned between the ram and bed comprises first and second wedges, and first and second inclined ramp surfaces that the wedges slide relative to when moving in first and second directions relative to the frame to move the ram toward and away from the bed for bending operations. The assembly has an actuator which moves the first and second wedges relative to the ramp surfaces. The first and second wedges are drivingly linked to balance distribution of force across the ram. A Vernier scale assembly is mounted generally horizontally with the ram and wedges, to allow setting a scale component to control switching means to stop downward ram movement at a desired point. The press brake can be provided with a pivoting mechanism which enables the ram to be pivoted about an axis relative to the bed to position the ram at a selected angle relative to the bed.

REFERENCES:
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Press-Brake and Shear Handbook, copyright 1965 by Cahners Books, (Second Printing, Mar. 1972), pp. 36-43.
"Difficult is Easy", Pride in Metal-Forming Machinery by Lion Servies, Inc.
"Lion Manual Cheekbender" by Lion Services, Inc.
"Press Brakes", The Simple Solution, manufactured by Betenbender.
"Hydraulic Bender", from FECO Engineered Systems, Inc.

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