Guide mechanism for precision drilling and reaming

Details Guide mechanism for precision drilling and reaming Guide mechanism for precision drilling and reaming

1988-05-26

1990-04-10

Bilinsky, Z. R.

Cutting by use of rotating axially moving tool

With work-engaging structure other than tool or tool-support

408241B, B23B 4900

Patent

active

049155512

ABSTRACT:
Apparatus for precision positioning of guide bushings for roughing tools and for finishing tools so that preformed holes in workpieces may be initially subjected to a roughing operation by roughing tools and subsequently to a finishing operation by finishing tools. The guide bushings are mounted on the ends of carrier arms. The carrier arms encircle a workpiece holder. Each carrier arm is mounted for swinging movement on a pivot axis spaced radially from the workpiece holder. The carrier arms are swingable from a position in which the bushings on one end of the arms are aligned with holes in a workpiece mounted on the workpiece holder, to another position in which the guide bushings on the other end of the arms are aligned with holes in the workpiece. Power is provided for simultaneously swinging all of the carrier arms.

REFERENCES:
patent: 1445016 (1923-02-01), Golembiewski
patent: 2810306 (1957-10-01), Romi
patent: 3138975 (1964-06-01), Saye
patent: 4589806 (1986-05-01), Rotta, Jr.

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