Machine tool provided with cooling mechanism

Details Machine tool provided with cooling mechanism Machine tool provided with cooling mechanism

2006-10-03

2006-10-03

Cadugan, Erica (Department: 3722)

Gear cutting, milling, or planing

Milling

With means to control temperature or lubricate

C409S231000, C409S235000, C082S900000, C083S170000

Reexamination Certificate

active

07114895

ABSTRACT:
A spindle motor as a heating element and a spindle head having a spindle that is driven by the spindle motor are coupled to each other by a cooling flange. The cooling flange is provided with a cooling passage, the cross-sectional area of which gradually increases with distance from its gas inlet toward its gas outlet. When a high-pressure gas is injected into the cooling passage through the gas inlet, it is adiabatically expanded and cooled by the cooling passage having the gradually increasing cross-sectional area. Thus, the cooling flange restrains heat generated from the spindle motor from being transmitted to the spindle head.

REFERENCES:
patent: 5487629 (1996-01-01), Watanabe
patent: 5799553 (1998-09-01), Billatos
patent: 5803683 (1998-09-01), Turchan
patent: 7013986 (2006-03-01), Mikiya et al.
patent: 2005/0129561 (2005-06-01), Heizer
patent: 2005/0181710 (2005-08-01), Linnenbrink
patent: 2006/0108134 (2006-05-01), Mikiya et al.
patent: 63-179048 (1988-11-01), None
patent: 05-138493 (1993-06-01), None
patent: 5-74749 (1993-10-01), None
Machine Translation from JPO Website of JP-05-138493-A, 6 pages.
European Search Report for Application No. EP 05 25 1267.0-2302 dated Jul. 22, 2005.

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