DE102011005775A1 - Laser beam orientation detector for, e.g. laser cutting machine, has detector element with recess which comprises circular opening in direction of preset axis, for passage of laser beam, where outer side of opening is made impenetrable - Google Patents
Laser beam orientation detector for, e.g. laser cutting machine, has detector element with recess which comprises circular opening in direction of preset axis, for passage of laser beam, where outer side of opening is made impenetrable Download PDFInfo
- Publication number
- DE102011005775A1 DE102011005775A1 DE102011005775A DE102011005775A DE102011005775A1 DE 102011005775 A1 DE102011005775 A1 DE 102011005775A1 DE 102011005775 A DE102011005775 A DE 102011005775A DE 102011005775 A DE102011005775 A DE 102011005775A DE 102011005775 A1 DE102011005775 A1 DE 102011005775A1
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- Germany
- Prior art keywords
- detector
- laser beam
- laser
- axis
- detector elements
- Prior art date
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- Granted
Links
- 238000003698 laser cutting Methods 0.000 title description 5
- 238000012545 processing Methods 0.000 claims abstract description 32
- 238000000034 method Methods 0.000 claims abstract description 10
- 230000005855 radiation Effects 0.000 claims description 12
- 239000002826 coolant Substances 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000005520 cutting process Methods 0.000 description 7
- 239000007789 gas Substances 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000003754 machining Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- BUHVIAUBTBOHAG-FOYDDCNASA-N (2r,3r,4s,5r)-2-[6-[[2-(3,5-dimethoxyphenyl)-2-(2-methylphenyl)ethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol Chemical compound COC1=CC(OC)=CC(C(CNC=2C=3N=CN(C=3N=CN=2)[C@H]2[C@@H]([C@H](O)[C@@H](CO)O2)O)C=2C(=CC=CC=2)C)=C1 BUHVIAUBTBOHAG-FOYDDCNASA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- 235000013980 iron oxide Nutrition 0.000 description 1
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 229910001285 shape-memory alloy Inorganic materials 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
- G01B11/27—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
- G01B11/272—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes using photoelectric detection means
-
- 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
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
-
- 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
- B23K26/705—Beam measuring device
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- General Physics & Mathematics (AREA)
- Laser Beam Processing (AREA)
Abstract
Description
Die Erfindung betrifft einen Detektor und ein Verfahren zum Erfassen einer Ausrichtung eines Laserstrahls in einer Laserbearbeitungsmaschine und insbesondere einen Detektor zum Erfassen einer Ausrichtung des Laserstrahls, der den Laserstrahl formt, und ein Verfahren zum Erfassen der Ausrichtung des Laserstrahls, wobei der Laserstrahl geformt wird.The invention relates to a detector and a method for detecting an alignment of a laser beam in a laser processing machine, and more particularly to a detector for detecting an orientation of the laser beam forming the laser beam and a method for detecting the alignment of the laser beam, wherein the laser beam is formed.
Um einen Bearbeitungsprozess in einer Laserbearbeitungsmaschine optimal auszuführen, muss der Laserstrahl bezüglich einer Fokussieroptik auf einem vorbestimmten Strahlweg abgestrahlt werden.In order to perform a machining process in a laser processing machine optimally, the laser beam must be emitted with respect to a focusing optics on a predetermined beam path.
Es ist bekannt, die Ausrichtung eines Laserstrahls in einer 2D-Laserschneidmaschine so zu ermitteln, dass sogenannte „Tapeshots” durchgeführt werden, in denen der Bediener den Laserstrahl kurz zündet, wobei auf einem Teststreifen, der nach der Fokussieroptik angeordnet ist, ein Einbrand erzeugt wird. Anhand der Lage des Einbrands wird dann auf die Ausrichtung des Laserstrahls geschlossen. Die Ausrichtung wird dann manuell korrigiert, und zwar entweder innerhalb der Strahlführung durch Verkippen von Umlenkspiegeln oder extern durch Verstellen der Düsenposition. Dieses Verfahren ist sehr aufwändig und während eines Bearbeitungsvorgangs der Laserbearbeitungsmaschine nicht möglich.It is known to determine the alignment of a laser beam in a 2D laser cutting machine so that so-called "tape shots" are performed, in which the operator ignites the laser beam briefly, wherein on a test strip, which is arranged after the focusing optics, a burn-in is generated , On the basis of the position of the Einbrands is then closed to the orientation of the laser beam. The alignment is then corrected manually, either within the beam guide by tilting deflecting mirrors or externally by adjusting the nozzle position. This method is very complex and not possible during a machining operation of the laser processing machine.
Aus der
In der
In der
Diese Vorrichtungen weisen den Nachteil auf, dass zwar eine Abweichung erfasst wird, jedoch die Bearbeitung durch den Laserstrahl nicht optimal erfolgt, solange die Abweichung besteht.These devices have the disadvantage that, although a deviation is detected, but the processing by the laser beam is not optimal, as long as the deviation exists.
Daraus ergibt sich die Aufgabe, eine permanente Überwachung der Ausrichtung des Laserstrahls durchzuführen, ohne dass sich die Bearbeitungsbedingungen bei einer Abweichung des Laserstrahls von dem Sollweg verschlechtern.This results in the task of performing a permanent monitoring of the alignment of the laser beam, without the processing conditions deteriorate in a deviation of the laser beam from the desired path.
Die Aufgabe wird durch eine Vorrichtung gemäß Anspruch 1 und ein Verfahren gemäß Anspruch 13 gelöst. Eine Laserbearbeitungsmaschine mit einer erfindungsgemäßen Vorrichtung ist in Anspruch 9 beansprucht.The object is achieved by a device according to claim 1 and a method according to
Der erfindungsgemäße Detektor ergibt neben einer Erfassung einer Ausrichtung eines Laserstrahls den vorteilhaften Effekt, dass ein Laserstrahl, der nicht optimal ausgerichtet ist, durch die strahlformende Eigenschaft des Detektors so beschnitten wird, dass er optimal auf eine Fokussieroptik auftreffen kann. Weiterhin ist es nicht erforderlich, zusätzlich Bauteile als Blende vorzusehen, da die Detektorelemente als Blende wirken.The detector according to the invention, in addition to detecting an alignment of a laser beam, has the advantageous effect that a laser beam which is not optimally aligned is trimmed by the beam-forming property of the detector in such a way that it can optimally impinge on a focusing optics. Furthermore, it is not necessary to additionally provide components as a diaphragm, since the detector elements act as a diaphragm.
Die Erfindung wird anhand von Ausführungsbeispielen unter Bezugnahme auf die beigefügten Figuren beschrieben.The invention will be described by means of embodiments with reference to the accompanying figures.
Insbesondere zeigt:In particular:
Im Betrieb muss üblicherweise vor dem tatsächlichen Schneidvorgang des Werkstücks
Beim Schneiden des Werkstücks
In dem Laserbearbeitungskopf
Die Öffnung
In
Die Detektorelemente
Die Vertiefungen
Die Detektorelemente
In
Am Detektor
Außerdem sind am Detektor
Eine thermische Isolierung der Detektorelemente
Im Betrieb ist der Detektor
Wie oben bereits ausgeführt, wirken die Detektorelemente
Eine Veränderung der Ausrichtung des Laserstrahls
Bei einer Abweichung von dem vorbestimmten Strahlweg des Laserstrahls
Durch die ständige Erfassung der Temperaturänderungen und damit der Ausrichtung des Laserstrahls
Optional ist der Detektor
Als eine weitere Option ist der Detektor
In einer alternativen Ausführungsform erfolgt die Bestimmung der Temperatur der Detektorelemente
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 3840278 C2 [0004] DE 3840278 C2 [0004]
- JP 62218912 A [0005] JP 62218912 A [0005]
- EP 0304664 B1 [0006] EP 0304664 B1 [0006]
Claims (15)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011005775A DE102011005775B4 (en) | 2011-03-18 | 2011-03-18 | Detector and method for detecting alignment of a laser beam in a laser processing machine and laser processing machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011005775A DE102011005775B4 (en) | 2011-03-18 | 2011-03-18 | Detector and method for detecting alignment of a laser beam in a laser processing machine and laser processing machine |
Publications (2)
Publication Number | Publication Date |
---|---|
DE102011005775A1 true DE102011005775A1 (en) | 2012-09-20 |
DE102011005775B4 DE102011005775B4 (en) | 2012-11-15 |
Family
ID=46756690
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102011005775A Expired - Fee Related DE102011005775B4 (en) | 2011-03-18 | 2011-03-18 | Detector and method for detecting alignment of a laser beam in a laser processing machine and laser processing machine |
Country Status (1)
Country | Link |
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DE (1) | DE102011005775B4 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114543986A (en) * | 2022-03-07 | 2022-05-27 | 英特尔产品(成都)有限公司 | Light barrier device |
CN116393857A (en) * | 2023-06-09 | 2023-07-07 | 常州特尔玛科技股份有限公司 | Device and method for detecting focus centering of handheld laser welding gun |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3142823B1 (en) | 2014-05-13 | 2020-07-29 | Trumpf Laser- und Systemtechnik GmbH | Device for monitoring the orientation of a laser beam and euv radiation-generating device comprising same |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6170776A (en) * | 1984-09-13 | 1986-04-11 | Mitsubishi Electric Corp | Laser device |
US4675501A (en) * | 1983-10-29 | 1987-06-23 | Trumpf Gmbh & Co. | Laser apparatus with novel beam aligning means and method of laser processing of workpieces using same |
JPS62218912A (en) | 1986-03-20 | 1987-09-26 | Toyoda Mach Works Ltd | Device for detecting drift of laser beam axis |
DE3840278C2 (en) | 1988-11-30 | 1991-04-18 | Diehl Gmbh & Co, 8500 Nuernberg, De | |
EP0304664B1 (en) | 1987-08-28 | 1991-11-27 | Westinghouse Electric Corporation | Detector for aligning high power lasers |
EP0863390A1 (en) * | 1997-03-07 | 1998-09-09 | CISE S.p.A. | "Device for the detection of optical parameters of a laser beam". |
-
2011
- 2011-03-18 DE DE102011005775A patent/DE102011005775B4/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4675501A (en) * | 1983-10-29 | 1987-06-23 | Trumpf Gmbh & Co. | Laser apparatus with novel beam aligning means and method of laser processing of workpieces using same |
JPS6170776A (en) * | 1984-09-13 | 1986-04-11 | Mitsubishi Electric Corp | Laser device |
JPS62218912A (en) | 1986-03-20 | 1987-09-26 | Toyoda Mach Works Ltd | Device for detecting drift of laser beam axis |
EP0304664B1 (en) | 1987-08-28 | 1991-11-27 | Westinghouse Electric Corporation | Detector for aligning high power lasers |
DE3840278C2 (en) | 1988-11-30 | 1991-04-18 | Diehl Gmbh & Co, 8500 Nuernberg, De | |
EP0863390A1 (en) * | 1997-03-07 | 1998-09-09 | CISE S.p.A. | "Device for the detection of optical parameters of a laser beam". |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114543986A (en) * | 2022-03-07 | 2022-05-27 | 英特尔产品(成都)有限公司 | Light barrier device |
CN116393857A (en) * | 2023-06-09 | 2023-07-07 | 常州特尔玛科技股份有限公司 | Device and method for detecting focus centering of handheld laser welding gun |
CN116393857B (en) * | 2023-06-09 | 2023-08-15 | 常州特尔玛科技股份有限公司 | Device and method for detecting focus centering of handheld laser welding gun |
Also Published As
Publication number | Publication date |
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DE102011005775B4 (en) | 2012-11-15 |
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Effective date: 20130216 |
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R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |