Press brake having plural probe pairs for measuring bend angles

Details Press brake having plural probe pairs for measuring bend angles Press brake having plural probe pairs for measuring bend angles

1990-07-16

1991-10-29

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

72 31, 72 34, 72389, B21D 502

Patent

active

050604953

ABSTRACT:
The bending of a workpiece between a lower and an upper die is measured by way of a workpiece measuring device having a workpiece measuring portion. A depth chasing quantity in a predetermined position of the workpiece is obtained by a folding form operating portion on the basis of the measured folding angle. And, crowning quantity is obtained by a crowning correction operating portion. Moreover, a depth correction value is obtained by a depth correction operating portion and a balance correction value of right and left is obtained by a balance correction operating portion. Then, bending is performed on a workpiece on the basis of the obtained correction values.

REFERENCES:
patent: 4864509 (1989-09-01), Somerville et al.

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