Cutting by use of rotating axially moving tool – With work-engaging structure other than tool or tool-support – Work-gripping clamp
Patent
1997-07-18
1999-03-02
Bishop, Steven C.
Cutting by use of rotating axially moving tool
With work-engaging structure other than tool or tool-support
Work-gripping clamp
408115B, B23B 4514
Patent
active
058761578
ABSTRACT:
A drill and forming tool centering jig. The tool is useful centering a drill, bit body, or forming tool with respect to a workpiece shaft face in which a bore is to drilled or a surface is to be shaped. The tool has a generally cylindrical tubular body having a first threaded end portion with external threads thereon, and a second, bushing end opposite thereto. Within the body are secured a first collet and a second collet. A collet compressor to inwardly urges the inner reaches of both collets radially inward toward the outer surface of the workpiece when a jam nut assembly is threadably engaged and tightened on the external threads on the threaded end portion of the body. A bushing is provided to be slideably engaged with and secured in the body. Within the bushing, a forming tool is provided that is adapted to slidingly engage and rotate within the bushing. The forming tool is adapted to shape a working face of a workpiece shaft that is brought into engagement with the forming tool. Circumferential grooves are provided for locating snap rings within the body and in the jam nut assembly, and the combination of snap rings, bearings, and bushings are utilized to secure the collets, and the workpiece which they hold, in a secure working relationship.
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Bishop Steven C.
Goodloe, Jr. R. Reams
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