Keyway broach guide assembly

Details Keyway broach guide assembly Keyway broach guide assembly

1991-08-01

1992-09-29

Briggs, William

Gear cutting, milling, or planing

Broaching

Means for cutting groove

409304, B23D 3704

Patent

active

051509962

ABSTRACT:
A broaching bushing for guiding a broaching tool in a workpiece bore during the cutting of a keyway of in an annular surface of the bore. The bushing having two main components: a wedge-shaped member and a broaching tool guide member positionable in longitudinally abutting relation to one another to form a broaching bushing of substantially rectangular cross section for insertion in the workpiece bore. The width of the rectangular cross-section is adjusted to tightly fit the bore by the longitudinal shifting of the wedge and guide members relative to one another. The bushing is sizable to fit into a plurality of standard bores or non-standard undersize or oversize bores.

REFERENCES:
patent: 131293 (1872-09-01), Mooney
patent: 870971 (1907-11-01), Lindstrom
patent: 4284377 (1981-08-01), Piper
patent: 4810140 (1989-03-01), Copen

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