Milling spindle of machine tool

Details Milling spindle of machine tool Milling spindle of machine tool

2011-01-25

2011-01-25

Cadugan, Erica E (Department: 3726)

Gear cutting, milling, or planing

Milling

With means to control temperature or lubricate

C409S231000, C409S233000, C285S098000, C285S096000, C285S101000, C285S110000, C277S349000, C277S351000, C277S914000, C137S580000

Reexamination Certificate

active

07874771

ABSTRACT:
The invention provides an improved seal structure of cutting fluid supplied to a spindle of a milling spindle. The milling spindle100comprises a spindle20supported within a housing via a bearing16, and a drawbar24having a through coolant passage22. The cutting fluid C1passing through the rotary joint40and50is sent to the through coolant passage22, but a portion thereof is collected in a drain chamber105. A rotation member110is attached to a rear end portion of the spindle20, which is equipped with a labyrinth device150having a lip seal member152. An air supply member120has two air seal members142and144, and air A1is sent toward the labyrinth device150, by which an air seal is formed.

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English abstract from the DERWENT database for KR 2005069066-A, which document was published on Jul. 5, 2005, along with clipped image therefrom.
Machine Translation and drawings from KR-10-2005-0069066-A, which document was published on Jul. 5, 2005.
European Search Report for corresponding European Application No. 09405146.3 dated Apr. 14, 2010.

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