Importance

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Abstract

A collet assembly comprises a collet head, a collet body and a mount for securing the collet head and the collet body to the spindle of a machine. The collet head has inside and outside surfaces and front and rear faces and the outside surface includes an outwardly flaring surface. The collet head includes an external annular groove and a hook portion adjacent the rear face. The hook portion extends radially outwardly from the axis of the collet head. The collet body has inside and outside surfaces, a tubular portion and a flange portion extending radially outwardly from the outside surface and axially beyond the collet head hook portion. The flange portion has an outside diameter substantially larger than the outside diameter of the tubular portion of the collet body. The flange portion has an inner annular groove and an adjacent hook portion. The collet head hook portion is positioned within the flange portion annular groove and the hook portion of the flange portion within the collet head annular groove. The mount has an outwardly flaring surface cooperating with the collet head such that the collet head segments close or open as the collet head is axially moved by the collet body. The mount surrounds the collet head and the flange portion for limiting the movement of the draw tube and the collet head.

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First Claim