Guide-bar device for a single spindle lathe

Details Guide-bar device for a single spindle lathe Guide-bar device for a single spindle lathe

1988-09-29

1989-12-26

Schmidt, Frederick R.

Turning

Lathe

With work feeder or remover

82124, 82126, 414 17, B23B 1300

Patent

active

048890243

ABSTRACT:
The device comprises a sectional carrier of closed cross section with a circular bed, a base and channels of distribution and return of oil. A guiding element comprising at least one guiding tube enclosing a bar stock to be machined and a push-piston is removably secured on the bed. The distribution channel communicates through radial openings with the guiding element for delivering to the latter oil under pressure which creates a hydrodynamic bearing supporting the bar stock when the latter is set into rotation by the head stock of the lathe. The sectional carrier has a great rigidity and stability which permits very high speeds of rotation of the bar stock to be machined. The return of oil by closed channels of the sectional carrier is protected against external contamination by impurities or dust.

REFERENCES:
patent: Re29905 (1979-02-01), Scheurer
patent: 4129220 (1978-12-01), Peterson et al.
patent: 4217800 (1980-08-01), Furegati
patent: 4221141 (1980-09-01), Oliver
patent: 4406190 (1983-09-01), Mason
patent: 4507992 (1985-04-01), Vandevoir et al.
patent: 4621550 (1986-11-01), Berns
patent: 4624611 (1986-11-01), Fabbri

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