Device for measuring the fold angle in a sheet metal bending pre

Details Device for measuring the fold angle in a sheet metal bending pre Device for measuring the fold angle in a sheet metal bending pre

1981-03-09

1984-12-25

Crosby, Gene P.

Metal deforming

By relatively movable offset tool-faces

With tool motion in fixed path

72 32, B21D 502

Patent

active

044895860

ABSTRACT:
A device for measuring the fold angle in a sheet metal bending press of the type in which a press head forces the workpiece into the V-shaped groove of a die block, the fold angle measuring device having one or two spring-loaded feeler rods in contact with the workpiece laterally outside the bending edge of the press head, the feeler rod, or rods, being connected to an indicator or transducer of the resistive, capacitative, or photoelectric type, for a readout and/or an electrical output signal usable in a feedback circuit of the press controls. The components of the device are arranged in the cavity of a narrow, block-shaped housing which has substantially the same outline as the adjoining sections of the press head.

REFERENCES:
patent: 1826783 (1931-10-01), Hess
patent: 3146819 (1964-09-01), Van Endert
patent: 3474657 (1969-10-01), Spiegel

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