Patent ID: 6364320
Filing Date: 2002-04-02
Classification: B23B,C03B,Y10S,Y10T

Abstract:
A rotatable work head for a machine for shaping objects in a centered position, comprising:a hollow body (10) having a first end and second end and defining a length herebetween an internal wall and a longitudinal axis, an operating member (20) which is mounted to slide coaxially to said internal wall via a bushing means (24, 26) at the first and second ends, said operating member having a passageway, said passageway is inside said hollow body, which is completely hollow to allow passage of an object to be shaped, and which has an external wall; a guide surface (22) on one of said internal wall and said external wall; and a plurality of pincher elements for gripping the objects to be shaped, each made of a single monolithic piece, which are arranged with respect to said guide surface in order to rest thereon in such a manner that an axial relative displacement between said body and said operating member actuates a simultaneous opening or closing of all of said pincher elements concentrically with respect to said longitudinal axis of said hollow body, the object to be shaped being perfectly centered by the closing of pincher elements.