Chuck jaw locking apparatus for a rotatable machine tool

B - Operations – Transporting – 23 – B

Patent

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Details

B23B 31/00 (2006.01) B23B 31/40 (2006.01) B23Q 3/00 (2006.01)

Patent

CA 2155591

This disclosure is directed to a chuck system for a machine tool such as a lathe. It incorporates an elongate cylindrical body which terminates in a set of collet fingers having enlargements at the detail end whereby the enlargements define a circular body. The circular body is divided by slots to form collet fingers with enlargements at the ends of the collet fingers. A circumferential groove is formed having a registration shoulder for all of the lock jaw segments. Each lock jaw segment has a protruding tab. The tab is locked by positioning against the face of the groove and is registered against movement by jamming against a transverse post in the groove which shoulders against a conforming notch on the locking tab. A set screw holds the components in fixed location, and release is accomplished by unthreading the set screw.

Système de mandrin pour une machine-outil telle qu'un tour. Ce système est constitué d'un corps cylindrique allongé qui se termine par un jeu de doigts de pince présentant un agrandissement à l'extrémité de détail formant un corps circulaire. Ce dernier est divisé en fentes pour former des doigts de pince présentant un agrandissement à leur extrémité. Une rainure circonférentielle comprend une épaule de fixation pour tous les segments de mors de blocage. Chacun de ces segments possède une patte en saillie. Cette patte est bloquée par positionnement contre la face de la rainure et est fixée pour éviter un mouvement par calage contre un montant transversal dans la rainure s'accotant contre une encoche correspondante de la patte de blocage. Une vis sans tête maintient les composants en position fixe, et un relâchement peut s'effectuer en dévissant la vis sans tête.

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