Spindle head assembly

Details Spindle head assembly Spindle head assembly

1989-07-13

1990-08-07

Briggs, William

Metal working

Plural diverse manufacturing apparatus including means for...

With turret mechanism

184 614, 409201, B23B 704, B23C 112

Patent

active

049456202

ABSTRACT:
In a machine tool provided with a spindle head carrier and a spindle head mounted thereon when a drive shaft supported in the spindle head carrier drives a spindle via gears, an oil circulation chamber is provided for lubricating the gears. The chamber is sealed against the stationary part of the spindle head by sealing members, which are charged with compressed air via compressed pressure supply lines, and which direct compressed air to front sealing surfaces of the sealing members cooperating with rotating opposed sealing surfaces. The pressure ratios and the line cross-section are selected so that a sealing gap exists for the seal between the rotating opposed sealing surfaces and the sealing surfaces of the sealing members for contactless sealing.

REFERENCES:
patent: 3805919 (1974-04-01), Nakamura et al.
patent: 3877547 (1975-04-01), Willuweit et al.
patent: 4344507 (1982-08-01), Osborne
patent: 4559682 (1985-12-01), Sachot
patent: 4610584 (1986-09-01), Malzkorn et al.
patent: 4787785 (1988-11-01), Hiller et al.

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