Method of automatic adjustment of die height of a press

Details Method of automatic adjustment of die height of a press Method of automatic adjustment of die height of a press

1992-06-03

1993-04-06

Jones, David

Metal deforming

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

Sensing tool or tool-linked part

72 24, 72441, 72446, 100257, B21J 920

Patent

active

051992906

ABSTRACT:
A method for automatically adjusting die height in a press having a plurality of dies aligned in a work transfer direction includes a load pattern setting member for inputting possible load patterns, each pattern corresponding to the number of dies under load. A correction setting member is provided for inputting an amount of correction (compensation) by which the position of the bottom of the slide in each load pattern is rectified to a basic position corresponding to a basic load pattern. A pattern identifier is provided for identifying the current load pattern when the slide is at a given position. A correction controller is provided for selecting the proper amount of correction of the position of the bottom of the slide for the identified load pattern and sending a drive control signal corresponding to this amount to a slide position adjustment unit. A slide adjustment actuator is provided for actuating the unit to automatically rectify the position of the bottom of the slide at the bottom dead center of the press cycle to the basic position.

REFERENCES:
patent: 4386304 (1983-05-01), Bergmann et al.
patent: 5027631 (1991-07-01), Naito
patent: 5031431 (1991-07-01), Naito
patent: 5140834 (1992-08-01), Kashiwagi et al.

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