Means for detecting opening degree of claws of an electrically d

Details Means for detecting opening degree of claws of an electrically d Means for detecting opening degree of claws of an electrically d

1974-08-07

1976-02-03

Meister, J. M.

Chucks or sockets

With fluid-pressure actuator

Socket type

279 1R, 279110, 318603, B23B 3102

Patent

active

039360601

ABSTRACT:
A means for detecting the degree of opening of claws of an electrically driven chuck in which the jaws are driven by an electric motor, is disclosed which includes a first detecting station having a. cam plate secured to the shaft of the motor and a plurality of switch means adapted for detecting the revolutions of the cam plate, a second detecting station including another a second cam plate fixed to a main power shaft of a machine tool in which said chuck is incorporated and another plurality of switch means adapted for detecting the revolutions of the another second cam plate, and a present counter adapted for emitting a signal representing the actual opening degree upon comparing two input signals delivered from the respective detecting stations.

REFERENCES:
patent: 2006621 (1935-07-01), Berg
patent: 3218532 (1965-11-01), Toscano
patent: 3673393 (1972-06-01), Schober

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