Patent ID: 6036197
Filing Date: 2000-03-14
Classification: B23B,Y10T

Abstract:
A device for clamping and driving a work piece pre-positioned on a centering means, the device comprising a main body, a traction rod sliding axially in the said body, which, through a transmission system, converts its axial movement into a radial movement of members ensuring the clamping of the work piece, which is ensured by at least two pivoting arms and a link having a truncated sphere and an inclined plane, wherein the end of each pivoting arm co-operates with a half draw member via the link with the truncated sphere, in that each half draw member is mounted coaxially outside a locking ring displaceable through the action of the traction rod, and in that the transmission system between the ring and the draw member is provided with compensating and locking means.