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Title:
LASER PROCESSING MACHINE AND PROTECTIVE DEVICE AGAINST LASER LIGHT
Document Type and Number:
WIPO Patent Application WO/2012/014879
Kind Code:
A1
Abstract:
A laser processing machine which causes laser light (La) emitted from a laser oscillator (21) to propagate along a light path and applies the laser light to a workpiece (W) is provided with a bellows (2) which protects the environment of the light path by surrounding the periphery of the light path along the optical axis of the laser light, an aperture (1) which is disposed on the lower stage side of the light path than the bellows (2), passes the laser light (La) therethrough, and blocks reflected light of the laser light (La) reflected by the workpiece (W), a temperature switch (3) which detects the reflected light applied to the aperture (1), and a control unit (50) which controls the operation of the laser oscillator (21) on the basis of the detection result of the reflected light detected by the temperature switch (3), the aperture (1) being formed by a plate-shaped member and disposed so that the principal surface of the plate-shaped member faces the direction perpendicular to the optical axis of the laser light (La).

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Inventors:
KINO, Hiroshi (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
木野　裕司 (〒10 東京都千代田区丸の内二丁目７番３号　三菱電機株式会社内 Tokyo, 〒1008310, JP)
Application Number:
JP2011/066942
Publication Date:
February 02, 2012
Filing Date:
July 26, 2011
Export Citation:
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Assignee:
Mitsubishi Electric Corporation (7-3 Marunouchi 2-chome, Chiyoda-ku Tokyo, 10, 〒1008310, JP)
三菱電機株式会社 (〒10 東京都千代田区丸の内二丁目７番３号 Tokyo, 〒1008310, JP)
KINO, Hiroshi (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
International Classes:
B23K26/08; B23K26/06
Attorney, Agent or Firm:
SAKAI, Hiroaki (Sakai International Patent Office, Kasumigaseki Building 2-5, Kasumigaseki 3-chome, Chiyoda-k, Tokyo 20, 〒1006020, JP)
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Claims:



 
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