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Title:
SCANNING TYPE LASER BEAM MACHINING APPARATUS
Document Type and Number:
Japanese Patent JP2012024808
Kind Code:
A
Abstract:

To keep the consistent function of a galvano mirror by simply monitoring the temperature of a mirror holder of a galvano scanner to reliably prevent any excessive temperature rise.

A temperature monitoring unit in a laser beam machining apparatus has a bar-shaped or probe-shaped X-axis thermal interlocking unit 90X and Y-axis thermal interlocking unit 90Y which are arranged in a scanner casing 60 close to an X-axis mirror holder 78X and a Y-axis mirror holder 78Y, respectively, so as not to interfere in their rotating (oscillating) motions. The X-axis thermal interlocking unit 90X (the Y-axis thermal interlocking unit 90Y) accommodates a thermal switch as a temperature-sensing element deeply inside a cylindrical casing to electrically connect the internal thermal switch to an external control circuit via an electric cable 96X (96Y).


Inventors:
WATANABE TATSURO
KENCHI SHIGEYUKI
IGARASHI HIROYUKI
KASE JUNPEI
ADACHI KOJI
Application Number:
JP2010165765A
Publication Date:
February 09, 2012
Filing Date:
July 23, 2010
Export Citation:
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Assignee:
MIYACHI TECHNOS KK
International Classes:
B23K26/00; B23K26/08; B23K26/24; G02B26/10
Domestic Patent References:
JP2005040843A2005-02-17
JP2004130324A2004-04-30
JPH0751870A1995-02-28
JP2007199682A2007-08-09
Foreign References:
US0007014A1850-01-15
US5303081A1994-04-12
US0005012A1847-03-13
US5005929A1991-04-09
Attorney, Agent or Firm:
Filial piety Sasaki



 
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