Patent ID: 6811160
Filing Date: 2004-11-02
Classification: B23B,B23Q,Y10T

Abstract:
An improved tool-holder fixture, more specifically for tool holders, pincer holders and mill holders, designed for the mounting and dismounting thereof, characterized essentially in that it comprises a cage body (1) constituting the main support body for a needle bearing (2), a cover (3), a roller cage (4), rollers (5), a top cover (6) and screws (7) for fastening same, said cage body (1) comprising a stepped through-hole within which said needle bearing (2) and said cover (3) are housed, while said cage (4) is received in the interior of said hole and on top of said needle bearing (2) and said cover (3), the latter components facilitating the smooth rotation of roller cage (4), said rollers (5) being suitable to be received in the cavities defined between said cage (4) and said cage body (1), the latter element having, machined therein, plural half-moon-shaped cavities that serve as ramps for said rollers (5), said top cover (6) being disposed in the upper portion of the unit and being fastened directly to said cage body (1) by means of said screws (7).