Patent ID: 6679766
Filing Date: 2004-01-20
Classification: B24B

Abstract:
A honing tool assembly for precision machining a cylindrical bore in a workpiece comprising a sleeve, the sleeve having a cylindrical outer surface and an axis of rotation, an opening in the sleeve, the sleeve opening having a tapered wall and an axis coinciding with the axis of rotation;a mandrel extending through the sleeve opening, a tapered external surface on the mandrel engaging the tapered wall of the sleeve opening along the length of the opening; and diamond granule plating disposed in a spiral pattern on the outer surface of the sleeve; the sleeve and the diamond granule plating having a longitudinal slot extending along the length of the sleeve, whereby the effective outside diameter of the sleeve is expanded as a longitudinal force is applied to the mandrel; the sleeve and the mandrel being adapted to be mounted in a spindle machine for rotation about the axis of the sleeve as relative reciprocating motion of the workpiece and the sleeve occurs in the direction of the axes; a rotary adapter having an externally threaded extension with a central opening with an axis coincident with the axis of rotation; a retainer shoulder on the sleeve; and a clamping nut threadably connected to the threaded extension, the clamping nut engaging the retainer shoulder to secure the sleeve against the adapter for rotation about the axis of rotation.