Title:
冷却機構を備えた工作機械
Document Type and Number:
Japanese Patent JP4137819
Kind Code:
B2
Abstract:
In a machine tool, a spindle motor (1) considered as a heating element, and a spindle head (2) having a spindle that is driven by the spindle motor (1), are coupled to each other by a cooling flange (3). The cooling flange (3) is provided with a cooling passage (4), the cross-sectional area of which gradually increases with distance from a gas inlet (4a) supplied with high-pressure gas through a tube (7), toward a gas outlet (4b). When a high-pressure gas is injected into the cooling passage (4) through the gas inlet (4a), it is adiabatically expanded and cooled by the cooling passage (4) having the gradually increasing cross-sectional area. Thus, the cooling flange (3) restrains heat generated in the spindle motor (1) from being transmitted to the spindle head (2).
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Inventors:
Kunio Kojima
Keiko Sakuma
Keiko Sakuma
Application Number:
JP2004060288A
Publication Date:
August 20, 2008
Filing Date:
March 04, 2004
Export Citation:
Assignee:
FANUC Corporation
International Classes:
B23Q11/12; F28D7/02; F28F3/12; F28F13/08
Domestic Patent References:
| JP7110100A | ||||
| JP2004028265A | ||||
| JP5138493A | ||||
| JP4164547A | ||||
| JP11291142A | ||||
| JP2001074330A | ||||
| JP2003291048A | ||||
| JP7040221A | ||||
| JP2002233186A | ||||
| JP62034745A |
Attorney, Agent or Firm:
Matsuji Takemoto
Hideo Sugiyama
Koichi Yuda
Uozumi Takahiro
Hideo Sugiyama
Koichi Yuda
Uozumi Takahiro