Metal deforming – With use of control means energized in response to activator... – Metal deforming by use of roller or roller-like tool element
Patent
1980-03-03
1983-01-04
Larson, Lowell A.
Metal deforming
With use of control means energized in response to activator...
Metal deforming by use of roller or roller-like tool element
72 23, B21D 501
Patent
active
043666892
ABSTRACT:
This invention relates to a numerical control method for a press brake or the like. The back stopper is positioned by driving the motor. In the case where it is impossible to bend a working piece because the back stopper interferes with the working piece, the back stopper is retracted with the lid of a retraction instruction and a back stopper position data. Before the back stopper is retracted, the working piece is held by the punch. The program data of each process can be confirmed by using suitable display units.
REFERENCES:
patent: 3633395 (1972-01-01), Anderson
patent: 3874205 (1975-04-01), Roch et al.
patent: 4074350 (1978-02-01), Roch et al.
patent: 4098105 (1978-07-01), Fullers et al.
patent: 4131003 (1978-12-01), Foster et al.
patent: 4148203 (1979-04-01), Farazandeh
Kabushiki Kaisha Komatsu Seisakusho
Larson Lowell A.
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