FEEDING COLLET CHUCK Russian patent published in 2004 - IPC

FIELD: metal working, working of elongated rod type material in automatic lathes. SUBSTANCE: feeding collet chuck includes elastic petals with jaws having working surfaces onto which dents are formed. In order to enhance reliability of fixing feed value of elongated rod, in back portion of collet chuck sleeve is arranged and it is fastened by means of pins. Said sleeve has inner cone surface; apex of cone is turned to side opposite relative to direction of rod feed. Elastic slit type member may be mounted with possibility of motion in said sleeve. Outer surface of said elastic member has conicity degree similar to that of inner surface of sleeve. Dents are formed on inner surface of slit member. EFFECT: enhanced reliability of fixing feed value of rod. 2 cl, 4 dwg