Plate bending machine

Details Plate bending machine Plate bending machine

1989-05-15

1991-02-12

Crane, Daniel C.

Metal deforming

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

Movable clamp

72306, 72389, 72447, 72472, B21D 502

Patent

active

049914227

ABSTRACT:
The machine includes a U-shaped pincer (12) with a pair of arms (14, 16) which carry a V-sectioned linear punch (P) and a V-sectioned linear die (D) respectively. The punch (P) is fixed and the die (D) is movable. The U-shaped pincer (12) is mounted so that it can rotate both about a bending axis (V) coincident with the edge of the punch (P) and about a horizontal pivoting axis (O) which intersects the bending axis (V). A clamp (10) is adapted to grip an upper edge of a piece (W) of sheet metal so that a region thereof to be bent lies in a vertical suspension plane (B) lying between the arms (14, 16) of the U-shaped pincer (12) and containing the bending axis (V). The U-shaped pincer (12) and the clamp (10) are capable of relative movement both in a vertical direction (Z) and in a horizontal direction (X) perpendicular to the horizontal pivoting axis (O).

REFERENCES:
patent: 1034480 (1912-08-01), Meadowcroft
patent: 2099624 (1937-11-01), Robarge
patent: 2141657 (1938-12-01), Meier
patent: 2287933 (1942-06-01), Green
patent: 4043165 (1977-08-01), Badger et al.
patent: 4426873 (1984-01-01), Pearson et al.
patent: 4672835 (1987-06-01), Liet
patent: 4872862 (1989-10-01), Ewald

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