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1. WO2022161724 - LASER MACHINING HEAD COMPRISING A CHROMATIC COMPENSATION DEVICE

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Publication Number WO/2022/161724
Publication Date 04.08.2022
International Application No. PCT/EP2021/087520
International Filing Date 23.12.2021
IPC
B23K 26/03 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
26Working by laser beam, e.g. welding, cutting or boring
02Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
03Observing, e.g. monitoring, the workpiece
B23K 26/04 2014.1
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
26Working by laser beam, e.g. welding, cutting or boring
02Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
04Automatically aligning, aiming or focusing the laser beam, e.g. using the back-scattered light
B23K 26/046 2014.1
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
26Working by laser beam, e.g. welding, cutting or boring
02Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
04Automatically aligning, aiming or focusing the laser beam, e.g. using the back-scattered light
046Automatically focusing the laser beam
B23K 26/21 2014.1
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
26Working by laser beam, e.g. welding, cutting or boring
20Bonding
21by welding
B23K 26/38 2014.1
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
26Working by laser beam, e.g. welding, cutting or boring
36Removing material
38by boring or cutting
B23K 26/70 2014.1
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
26Working by laser beam, e.g. welding, cutting or boring
70Auxiliary operations or equipment
CPC
B23K 26/032
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
26Working by laser beam, e.g. welding, cutting or boring
02Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
03Observing, e.g. monitoring, the workpiece
032using optical means
B23K 26/046
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
26Working by laser beam, e.g. welding, cutting or boring
02Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
04Automatically aligning, aiming or focusing the laser beam, e.g. using the back-scattered light
046Automatically focusing the laser beam
B23K 26/21
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
26Working by laser beam, e.g. welding, cutting or boring
20Bonding
21by welding
B23K 26/38
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
26Working by laser beam, e.g. welding, cutting or boring
36Removing material
38by boring or cutting
Applicants
  • PRECITEC GMBH & CO. KG [DE]/[DE]
Inventors
  • BLAZQUEZ SANCHEZ, David
Agents
  • TER MEER STEINMEISTER & PARTNER PATENTANWÄLTE MBB
Priority Data
10 2021 101 658.426.01.2021DE
Publication Language German (de)
Filing Language German (DE)
Designated States
Title
(DE) LASERBEARBEITUNGSKOPF MIT CHROMATISCHER KOMPENSATIONSVORRICHTUNG
(EN) LASER MACHINING HEAD COMPRISING A CHROMATIC COMPENSATION DEVICE
(FR) TÊTE D'USINAGE LASER DOTÉE D'UN DISPOSITIF DE COMPENSATION CHROMATIQUE
front page image
Abstract
(DE) Laserbearbeitungskopf für Materialbearbeitung mit Laser, umfassend eine Fokussieroptik (30) zum Fokussieren des Laserstrahls (4); eine Austrittsöffnung (112) für den Laserstrahl (4); eine optische Sensoranordnung (S1); eine Koppeloptik (20) zum Auskoppeln von durch die Austrittsöffnung (112) eintretendem Licht (6) aus dem Strahlengang des Laserstrahls (4) zu der Sensoranordnung (S1); eine Optik (10, 30) zur Einstellung einer Fokuslage des Laserstrahls (4), die wenigstens ein verstellbares optisches Element (10.1) zum Einstellen der Fokuslage des Laserstrahls (4) aufweist; und eine Kompensationsoptik (70) zum Korrigieren einer durch die Fokussieroptik (30) hervorgerufenen chromatischen Aberration des zur Sensoranordnung (S1) ausgekoppelten Lichts (6), wobei die Kompensationsoptik (70) zwischen der Koppeloptik (20) und der Sensoranordnung (S1) angeordnet ist und die Kompensationsoptik (70) zum Einstellen einer Fokuslage des zu der Sensoranordnung (S1) ausgekoppelten Lichts (6) eingerichtet ist.
(EN) The invention relates to a laser machining head for material machining with a laser, said laser machining head comprising: a focusing optical unit (30) for focusing the laser beam (4); an outlet opening (112) for the laser beam (4); an optical sensor assembly (S1); a coupling optical unit (20) for coupling light (6), that is entering through the outlet opening (112), out of the beam path of the laser beam (4) to the sensor assembly (S1); an optical unit (10, 30) for adjusting a focus position of the laser beam (4), said optical unit comprising at least one adjustable optical element (10.1) for adjusting the focus position of the laser beam (4); and a compensation optical unit (70) for correcting a chromatic aberration, caused by the focusing optical unit (30), of the light (6) coupled out to the sensor assembly (S1), the compensation optical unit (70) being positioned between the coupling optical unit (20) and the sensor assembly (S1), and the compensation optical unit (70) being designed to adjust a focus position of the light (6) coupled out to the sensor assembly (S1).
(FR) L'invention concerne une tête d'usinage laser pour l'usinage d'un matériau par laser, qui comprend une optique de focalisation (30) destinée à focaliser le faisceau laser (4) ; un orifice de sortie (112) pour le faisceau laser (4) ; un système de détection optique (S1) ; une optique de couplage (20) conçue pour faire sortir la lumière (6) pénétrant par l’orifice de sortie (112) hors du trajet optique du faisceau laser (4) vers le système de détection (S1) ; une optique (10, 30) destinée à régler une position focale du faisceau laser (4), qui comprend au moins un élément optique réglable (10.1) destiné à régler la position focale du faisceau laser (4) ; et une optique de compensation (70) destinée à corriger une aberration chromatique de la lumière (6) sortant vers le système de détection (S1), induite par l'optique de focalisation (30), l'optique de compensation (70) étant disposée entre l'optique de couplage (20) et le système de détection (S1), et l'optique de compensation (70) étant conçue pour régler une position focale de la lumière (6) sortant vers le système de détection (S1).
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