Bending machine and a die changing system for such bending machi

Details Bending machine and a die changing system for such bending machi Bending machine and a die changing system for such bending machi

1985-03-29

1987-04-21

Crane, Daniel C.

Metal deforming

By use of non-deforming work-gripping clamp and relatively...

Clamp structure constitutes sole initial metal-deforming...

72323, 72293, 72446, 72316, B21D 504

Patent

active

046586253

ABSTRACT:
The present invention relates to a bending machine having a bottom die on which a sheet metal workpiece is supported horizontally in a frame body and an upper die which secures the workpiece by pressing against the bottom die. A bending beam is freely movable in the vertical direction to bend the edges of the workpiece when the workpiece is secured between the top and bottom dies. The bending machine also comprises a die changing system having a plurality of elevator bases each formed with a plurality of stages which store top dies separately and a device for controlling the elevator bases individually to prepare any combination of the top dies stored on the stages and a die exchanging device for furnishing the combination of the top dies in the proper position in the bending machine by transferring it from the stages.

REFERENCES:
patent: 625789 (1899-05-01), Macbeth
patent: 2734552 (1956-02-01), Yonash
patent: 2821233 (1958-01-01), Wahl
patent: 3054437 (1962-09-01), Laxo
patent: 4112731 (1978-09-01), Anderson et al.
patent: 4532792 (1985-08-01), Hongo
patent: 4550588 (1985-11-01), Abe et al.

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