Press brake with a displacement sensor of electric signal output

Details Press brake with a displacement sensor of electric signal output Press brake with a displacement sensor of electric signal output

1988-05-17

1990-06-26

Jones, David

Metal deforming

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

Sensing tool or tool-linked part

72389, 72 1, 72 26, 72 30, 72446, B21D 3700

Patent

active

049361260

ABSTRACT:
A press brake with a displacement sensor of an electric signal output has a base distance portion; a displacement sensor disposed opposite the base distance portion and having an electric signal output; a pair of dies one of the molds being provided with either the base distance portion or the displacement sensor, the other being provided with the remaining one of the base distance portion or the displacement sensor through a linear actuator; a servo amplifier for inputting an electric signal output coming from the displacement sensor; a servo valve controlled by an output signal coming from the servo amplifier; and a cylinder controlled by the servo valve and adapted to actuate either one of the pair of dies.

REFERENCES:
patent: 4148203 (1979-04-01), Farazandeh et al.

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