Workpiece spindle device for a machine tool

Details Workpiece spindle device for a machine tool Workpiece spindle device for a machine tool

1999-03-10

2000-03-21

Tsai, Henry W. H.

Turning

Lathe

Headstock

82165, 82168, 279114, B23B 1902

Patent

active

060389486

ABSTRACT:
A workpiece spindle device for a machine tool having a drivable workpiece spindle in a spindle housing and including a hydraulic oil supply device with a non-rotating housing portion connected to the spindle housing. An oil control device is connected to the non-rotating housing and communicated to the oil supply device without an oil line therebetween. An oil flow path is provided between the oil control device and a cylinder chamber of a workpiece clamping cylinder of the spindle with the oil path being free of any valve and thus substantially unrestricted to oil flow.

REFERENCES:
patent: 3690687 (1972-09-01), Moe
patent: 3771802 (1973-11-01), Hiramatu et al.
patent: 4567794 (1986-02-01), Bald
patent: 4742740 (1988-05-01), Hasslauer et al.
patent: 4790699 (1988-12-01), Ringel
patent: 5010794 (1991-04-01), Klager
patent: 5172617 (1992-12-01), Rohm
patent: 5549427 (1996-08-01), Hiestand

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