Process and apparatus for precision folding of sheet metal

Details Process and apparatus for precision folding of sheet metal Process and apparatus for precision folding of sheet metal

1986-07-01

1987-11-17

Spruill, Robert L.

Metal deforming

By or with work-constrainer and/or manipulated work-forcer

Comprising work-stopping abutment

72 9, 72 12, 72 14, 901 6, 901 46, 493 18, B21D 1122

Patent

active

047064919

ABSTRACT:
A process is described which makes use of a folding press and a numerically controlled manipulator device provided with mechanical pincers; the sheet metal to be worked is gripped by the manipulator device and carried against an abutment shoulder disposed in front of the press; the alignment of the front edge of the sheet metal with the abutment shoulder is then tested by means of microswitches, and then the sheet metal is carried under the blade of the folding press utilizing, as reference co-ordinates for the movements of the manipulator, those of the abutment shoulder.

REFERENCES:
patent: 3553990 (1971-01-01), Suding et al.
patent: 4155243 (1979-05-01), Elsner
patent: 4192168 (1980-03-01), Di Ciaccio
patent: 4357821 (1982-11-01), Fowler
patent: 4366423 (1982-12-01), Inaba et al.
patent: 4372721 (1983-02-01), Harjar et al.
patent: 4668157 (1987-05-01), Kato et al.

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