Method and device for controlling the stroke of a press machine

Details Method and device for controlling the stroke of a press machine Method and device for controlling the stroke of a press machine

1988-12-02

1991-07-02

Jones, David

Metal deforming

With use of control means energized in response to activator...

Sensing work or product

72 21, 72441, 72443, 36447407, B21J 920

Patent

active

050276310

ABSTRACT:
A method and device, for controlling a press machine, which creates an appropriate control pattern whereby high efficient processing is performed having low vibration and low noise and with operating efficiencies increased. This is accomplished based on the knowledge that the amount of vibration and noise are principles determined by the punching pressure. An appropriate punching velocity is selected from a table in accordance with a maximum punching pressure detected in a test punching operation, and then an appropriate control pattern of the stroke of a ram is created on the basis of the data detected in the test punching operation and the selected punching velocity.

REFERENCES:
patent: 4208935 (1980-06-01), Kollmar
patent: 4408471 (1983-10-01), Gossard et al.
patent: 4552002 (1985-11-01), Haenni et al.
patent: 4747283 (1988-05-01), Moore et al.
patent: 4819467 (1989-04-01), Graf et al.

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