Metal deforming – With use of control means energized in response to activator... – Sensing tool or tool-linked part
Patent
1992-11-30
1994-07-19
Jones, David
Metal deforming
With use of control means energized in response to activator...
Sensing tool or tool-linked part
72389, 72456, 100231, B21J 1304
Patent
active
053297954
ABSTRACT:
A precision bending press for relatively short pieces of sheet metal includes a pair of tool-holder beams one of which is movable towards the other in order to follow a working path in the general common plane of the beams. The movable beam is subdivided, at least virtually, into a number n of segments and is controlled by a plurality of actuators of a number at least equal to n+1. The actuators are connected to a reaction structure stressed by the overall forming force created by the actuators. The actuators are controlled by means of a processing unit which receives signals indicative of the relative punch--die position generated by position transducers supported by an auxiliary structure which is not affected substantially by the deformations of the reaction structure caused by the bending force. The reaction structure comprises a single pair of lateral uprights connected to one another by a connecting beam and by the fixed tool-holder beam. Each actuator exerts the forming force between the connecting beam and the movable beam.
REFERENCES:
patent: 3327515 (1967-06-01), Beyeler
patent: 3677009 (1972-07-01), Thatcher
patent: 5077998 (1992-01-01), Santorio
Sartorio Franco
Vergano Stefano
Amada Company Ltd.
Jones David
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