Guide means for boring bars

Details Guide means for boring bars Guide means for boring bars

1974-09-12

1976-09-21

Simpson, Othell M.

Turning

Radially moving rotating tool inside bore

Tool simultaneously moving axially

408 82, 408241B, B23B 4106

Patent

active

039812103

ABSTRACT:
A boring bar has a free end that extends beyond the boring tool and has a guide roller rotatably mounted on the free end about an axis which is parallel to and offset from the boring bar axis. A guide bushing is supported in concentric alignment with the free end of the boring bar and rollably engages the guide roller at a point whose radius with respect to the boring bar axis extends in the same direction as the boring tool. The boring bar is preferably necked down between its supported end and the boring tool to facilitate deflection of the boring bar in response to pressure applied to the free end thereof by the guide roller and guide bushing.

REFERENCES:
patent: 2152954 (1939-04-01), Campbell
patent: 2234039 (1941-03-01), Busjaeger
patent: 2257609 (1941-09-01), Kollath
patent: 2395751 (1946-02-01), Newcomer
patent: 2643554 (1953-06-01), Sperisen
patent: 2747948 (1956-05-01), Jergens
patent: 3795160 (1974-03-01), Janiszewski
patent: 3935764 (1976-02-01), Janiszewski

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