Device for hemming of sheet metals, particularly of coachwork sh

Details Device for hemming of sheet metals, particularly of coachwork sh Device for hemming of sheet metals, particularly of coachwork sh

1998-10-23

2000-02-29

Crane, Daniel C.

Metal deforming

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

With interrelated clamp closer and tool mover

72323, B21D 504

Patent

active

060294930

ABSTRACT:
A device for hemming of sheet metals, particularly of coachwork sheet metals in automobile manufacture, wherein a driven ram with superposed hemming bed arranged in a base rack presses the sheet metals to be hemmed against stationary hemming tools. The working stroke and the force for hemming of sheet metals is pneumatically transmitted to ram by the aid of a compressed-air cushion arranged between base rack and ram.

REFERENCES:
patent: 1405799 (1922-02-01), Paul
patent: 2294676 (1942-09-01), MacMillin
patent: 3190215 (1965-06-01), Howard
patent: 5150508 (1992-09-01), St. Denis
patent: 5454261 (1995-10-01), Campian

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