Press brake and a workpiece measuring method in the press brake

Details Press brake and a workpiece measuring method in the press brake Press brake and a workpiece measuring method in the press brake

1989-07-12

1991-11-05

Jones, David

Metal deforming

With use of control means energized in response to activator...

Metal deforming by use of roller or roller-like tool element

72389, 72 31, B21D 502

Patent

active

050622838

ABSTRACT:
A press brake having a lower die disposed in a horizontal position and an upper die movable in up and down directions out of and into workpiece shaping relationship with lower die for shaping a workpiece, at least one workpiece measuring portion provided on the lower die, at least one workpiece measuring device at the workpiece measuring portion, the workpiece measuring device having probes movable in up and down directions for contacting the shaped portion of the workpiece which is in the lower die, a workpiece contacting portion on each of said probes for contacting said workpiece as the probes are moved upwardly in said lower die, and a displacement detecting device connected to the workpiece measuring device for detecting relative displacement in the up and down directions between the probes as the probes respectively engage the workpiece. The lower die can be formed of a plurality of unit lower dies with spaces therebetween forming the workpiece measuring portion and in which the workpiece measuring device is positioned. The structure enables a shaped workpiece to be measured while it is still between the dies.

REFERENCES:
patent: 4564765 (1986-01-01), Blaich
patent: 4640113 (1987-02-01), Dieperink et al.
patent: 4802357 (1989-02-01), Jones
patent: 4864509 (1989-09-01), Somerville et al.

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