Single station hemming tooling

Details Single station hemming tooling Single station hemming tooling

1985-12-05

1987-11-17

Crane, Daniel C.

Metal deforming

With means to drive tool

Including link-actuated tool support

72452, 72315, 72314, 72312, 2924358, B21D 500, B21D 3902

Patent

active

047064897

ABSTRACT:
A single station hemming device for hemming the upstanding peripheral flange of an outer element to overlie the periphery of an inner element to thereby join the outer element to the inner element. The hemming device has a series of hemming tools positioned end to end around the periphery of the outer element, each hemming tool being actuated in unison by a single motor to simultaneously hem the peripheral flange of the outer part. Each hemming tool is cam operated through a system of links by a single actuator to move in a first arcuate direction generally transversely of the flange to do a first stage hemming operation of about 35.degree.-55.degree.; then in a second arcuate direction to lift it above the flange and then in a third arcuate direction generally parallel to the original orientation of the flange to complete the remaining approximately 55.degree.-35.degree. of hemming of the flange.

REFERENCES:
patent: 2726702 (1955-12-01), Laxo
patent: 3058512 (1962-10-01), Chebuhar et al.
patent: 3569181 (1951-09-01), Laxo

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