Drill polishing method and its centering tool

Details Drill polishing method and its centering tool Drill polishing method and its centering tool

1997-10-22

2000-07-11

Scherbel, David A.

Abrading

Abrading process

Drill, thread, thread cutter, reamer, or rotary cutter abrading

451 65, 451279, 451282, B24B 100

Patent

active

060864583

ABSTRACT:
A plurality of centering parts 13 corresponding to drill diameters are disposed in a drill centering tool 3 and the drill centering tool 3 is supported at the side of a drill polishing machine 1. A drill 2 to be polished can be easily and accurately centered in the centering part 13 of the drill centering tool 3. In particular, the drill 2 is centered by fitting the front end portion of the spiral drill groove 14 of the drill 2 to a centering pawl 15 of the drill centering tool 3, chucking the centered drill 2 in a drill chuck 4 of the drill polishing machine 1, and polishing by fitting the cutting edge 5 to be polished at the front end of the drill 2 to the polishing surface of a grinder. Even if the drill diameters are different, drills to be polished can be easily centered and polished.

REFERENCES:
patent: 3553898 (1971-01-01), Nobile
patent: 3656264 (1972-04-01), Mackey, Jr. et al.
patent: 5070654 (1991-12-01), Manqvist et al.
patent: 5400546 (1995-03-01), Christian et al.
patent: 5649853 (1997-07-01), Kuo
patent: 5735732 (1998-04-01), Bernard

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