SE9801780L - Method and apparatus for monitoring the status of a protective glass in laser machining - Google Patents
Method and apparatus for monitoring the status of a protective glass in laser machiningInfo
- Publication number
- SE9801780L SE9801780L SE9801780A SE9801780A SE9801780L SE 9801780 L SE9801780 L SE 9801780L SE 9801780 A SE9801780 A SE 9801780A SE 9801780 A SE9801780 A SE 9801780A SE 9801780 L SE9801780 L SE 9801780L
- Authority
- SE
- Sweden
- Prior art keywords
- protective glass
- glass plate
- detector
- laser
- machining
- Prior art date
Links
- 239000011521 glass Substances 0.000 title abstract 8
- 230000001681 protective effect Effects 0.000 title abstract 8
- 238000003754 machining Methods 0.000 title abstract 4
- 238000000034 method Methods 0.000 title abstract 2
- 238000012544 monitoring process Methods 0.000 title 1
- 239000002245 particle Substances 0.000 abstract 3
- 239000000779 smoke Substances 0.000 abstract 2
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 238000011109 contamination Methods 0.000 abstract 1
- 230000003287 optical effect Effects 0.000 abstract 1
- 230000005855 radiation Effects 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
- B23K26/707—Auxiliary equipment for monitoring laser beam transmission optics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention relates to a method and an apparatus for checking the condition with respect to dirt contamination in the form of small smoke particles accumulated on a protective glass plate (3) arranged between the workpiece (2) and the laser optics (1) in a laser machining system and through which protective glass plate the machining laser beam (6) is arranged to pass. A thermal detector (10) is arranged, with a good thermal contact with the mechanical part attaching the protective glass plate in a holder (4), for sensing (measuring) the temperature of said mechanical attachment part. Due to an absorption of the laser beam by the small smoke particles an increased temperature is obtained on the protective glass plate and the mechanical parts that are attaching the protective glass in its holder (4). As soon as the detector signal has reached a certain level it can be indicated that it is time to replace the protective glass plate. The thermal detector (10) is preferably combined with an optical detector (8) sensing the radiation scattered by larger dirt particles collected on the protective glass plate during the machining process.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9801780A SE512097C2 (en) | 1998-05-20 | 1998-05-20 | Method and apparatus for monitoring the status of a protective glass in laser machining |
EP99925508A EP1146986A1 (en) | 1998-05-20 | 1999-04-13 | A method and an apparatus for checking the condition of a protective glass in connection with laser machining |
PCT/SE1999/000592 WO1999059762A1 (en) | 1998-05-20 | 1999-04-13 | A method and an apparatus for checking the condition of a protective glass in connection with laser machining |
JP2000549415A JP2002515341A (en) | 1998-05-20 | 1999-04-13 | Method and apparatus for checking the condition of protective glass in connection with laser machining |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9801780A SE512097C2 (en) | 1998-05-20 | 1998-05-20 | Method and apparatus for monitoring the status of a protective glass in laser machining |
Publications (3)
Publication Number | Publication Date |
---|---|
SE9801780D0 SE9801780D0 (en) | 1998-05-20 |
SE9801780L true SE9801780L (en) | 1999-11-21 |
SE512097C2 SE512097C2 (en) | 2000-01-24 |
Family
ID=20411390
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9801780A SE512097C2 (en) | 1998-05-20 | 1998-05-20 | Method and apparatus for monitoring the status of a protective glass in laser machining |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1146986A1 (en) |
JP (1) | JP2002515341A (en) |
SE (1) | SE512097C2 (en) |
WO (1) | WO1999059762A1 (en) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE20206255U1 (en) * | 2002-04-19 | 2003-08-28 | Thyssen Laser-Technik GmbH, 52074 Aachen | Carbon dioxide power laser with zinc selenide lens includes rapid response temperature sensor near lens to produce shutdown signal |
EP1362662A1 (en) * | 2002-05-08 | 2003-11-19 | Lasag Ag | Laser welding head and laser welding apparatus |
DE10310854B3 (en) * | 2003-03-11 | 2004-09-30 | Erlas Erlanger Lasertechnik Gmbh | Method, monitoring device and laser processing system with defect monitoring of an optical component |
ATE332209T1 (en) * | 2003-06-20 | 2006-07-15 | Trumpf Laser Gmbh & Co Kg | METHOD AND LASER PROCESSING HEAD WITH A DEVICE FOR MONITORING AN OPTICAL ELEMENT OF A PROCESSING HEAD OF A MACHINE FOR THERMALLY PROCESSING A WORKPIECE |
EP1643281A1 (en) * | 2004-10-02 | 2006-04-05 | Trumpf Werkzeugmaschinen GmbH + Co. KG | Optical element of a laser processing machine and support for the optical element |
US20090242526A1 (en) * | 2008-03-26 | 2009-10-01 | Electro Scientific Industries, Inc. | Laser micromachining through a protective member |
CN102656757B (en) * | 2010-11-23 | 2014-07-02 | Ipg光子公司 | Method and system for monitoring output of high power fiber laser system |
DE102014205907B4 (en) * | 2014-03-31 | 2020-03-26 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Protection device for protection against laser radiation |
JP6097796B2 (en) * | 2015-07-09 | 2017-03-15 | アイピージー フォトニクス コーポレーション | Method and system for monitoring the output of a high power fiber laser system |
CN105665951A (en) * | 2016-03-29 | 2016-06-15 | 同高先进制造科技(太仓)有限公司 | Laser head protection glasses monitoring device based on scattered light and temperature detection and working method |
CN105772961A (en) * | 2016-03-29 | 2016-07-20 | 同高先进制造科技(太仓)有限公司 | Laser head protection lens pollution monitoring device based on scattered light detection and working method thereof |
CN106927257B (en) * | 2017-03-29 | 2023-04-11 | 中国科学院西安光学精密机械研究所 | Automatic protective glass replacing device of laser fusion target field optical diagnosis equipment |
WO2019059250A1 (en) * | 2017-09-21 | 2019-03-28 | パナソニックIpマネジメント株式会社 | Laser processing head and laser processing system using same |
FR3085205B1 (en) * | 2018-08-22 | 2020-07-24 | Livbag Sas | LASER WELDER PROTECTIVE GLASS CONTROL DEVICE AND METHOD |
KR102175421B1 (en) * | 2018-10-28 | 2020-11-06 | 네모엔지니어링 주식회사 | Laser processing apparatus and laser processing system |
CN109759723A (en) * | 2019-03-05 | 2019-05-17 | 奔腾激光(温州)有限公司 | A kind of laser cutting head |
JP7316500B2 (en) * | 2019-06-03 | 2023-07-28 | パナソニックIpマネジメント株式会社 | Laser processing head and laser processing apparatus having the same |
CN115647621A (en) * | 2022-10-14 | 2023-01-31 | 深圳市创想三维科技股份有限公司 | Detection assembly, laser module, light emitting control method of laser module and laser processing equipment |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0716795B2 (en) * | 1988-01-19 | 1995-03-01 | ミヤチテクノス株式会社 | Laser emission port protection glass plate dirt detection device |
JPH04118193A (en) * | 1990-09-04 | 1992-04-20 | Hitachi Constr Mach Co Ltd | Device for monitoring protective glass of laser beam machine |
DE19605018A1 (en) * | 1996-01-31 | 1997-08-07 | Inpro Innovations Gmbh | Monitoring protective glass of laser welding optics |
-
1998
- 1998-05-20 SE SE9801780A patent/SE512097C2/en not_active IP Right Cessation
-
1999
- 1999-04-13 EP EP99925508A patent/EP1146986A1/en not_active Withdrawn
- 1999-04-13 JP JP2000549415A patent/JP2002515341A/en active Pending
- 1999-04-13 WO PCT/SE1999/000592 patent/WO1999059762A1/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
SE9801780D0 (en) | 1998-05-20 |
JP2002515341A (en) | 2002-05-28 |
SE512097C2 (en) | 2000-01-24 |
EP1146986A1 (en) | 2001-10-24 |
WO1999059762A1 (en) | 1999-11-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |