Tailstock for a lathe providing hydraulic axial length compensat

Details Tailstock for a lathe providing hydraulic axial length compensat Tailstock for a lathe providing hydraulic axial length compensat

1995-11-09

1997-04-15

Rachuba, M.

Turning

Lathe

Tailstock

B23B 2304

Patent

active

056198957

ABSTRACT:
A tailstock for a lathe. The tailstock includes a housing, a rigid sleeve mounted in the housing and being both rotatable and axially displaceable with respect to the housing, a center integral with the sleeve and disposed at a front end of the sleeve for supporting the workpiece, and a spindle which can axially displace the sleeve in the housing. Hydrostatic radial bearings support the sleeve for axial and rotational displacement of the sleeve in the housing, the sleeve and the radial bearings being disposed relative to one another such that no additional structural components are interposed therebetween, the radial bearings thereby directly contacting the outer surface of the sleeve. In addition, a hydraulic system axially supports the sleeve for compensating for changes in an axial force applied by the workpiece to the sleeve thereby keeping the axial force constant.

REFERENCES:
patent: 3292467 (1966-12-01), Heer
patent: 4033210 (1977-07-01), Swenson

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