Spindle assembly for a precision machine tool

Details Spindle assembly for a precision machine tool Spindle assembly for a precision machine tool

1977-04-19

1978-10-03

Hinson, Harrison L.

Turning

Severing or cut-off

Interrelated means for tool infeed and circumrotation

3081871, B23B 1902, F16C 124

Patent

active

041177509

ABSTRACT:
In the disclosed assembly, in accordance with the invention, there is provided a means for preventing drawing-in of air into the housing from ambient atmosphere through the labyrinth seal in the rear lid. The means includes a passage having its inlet communicating with the ambient atmosphere and its outlet communicating with the clearance between the spindle flange and the front lid. The disclosed spindle assembly is primarily intended for use in finishing boring machines wherein the tool spindles are of a flange-type design and are mounted in antifriction bearings. The disclosed spindle assembly prolongs the period of high-accuracy performance of the antifriction bearings and their service life in general.

REFERENCES:
patent: 1984718 (1934-12-01), Wistrand
patent: 2109766 (1938-03-01), Bullard
patent: 2223748 (1940-12-01), Thoren
patent: 3447843 (1969-06-01), Shipman
patent: 3447847 (1969-06-01), Stansell et al.

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