WO2020064051A1 - Dispositif d'ajustement de faisceau laser - Google Patents

Dispositif d'ajustement de faisceau laser Download PDF

Info

Publication number
WO2020064051A1
WO2020064051A1 PCT/DE2019/100802 DE2019100802W WO2020064051A1 WO 2020064051 A1 WO2020064051 A1 WO 2020064051A1 DE 2019100802 W DE2019100802 W DE 2019100802W WO 2020064051 A1 WO2020064051 A1 WO 2020064051A1
Authority
WO
WIPO (PCT)
Prior art keywords
adjustment
laser beam
drive
link
adjustment device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/DE2019/100802
Other languages
German (de)
English (en)
Inventor
Marc-Gordon Griguhn
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Thermacut K S
Scansonic MI GmbH
Original Assignee
Thermacut K S
Scansonic MI GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Thermacut K S, Scansonic MI GmbH filed Critical Thermacut K S
Publication of WO2020064051A1 publication Critical patent/WO2020064051A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/035—Aligning the laser beam
    • 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
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/04—Automatically aligning, aiming or focusing the laser beam, e.g. using the back-scattered light
    • 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
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/04—Automatically aligning, aiming or focusing the laser beam, e.g. using the back-scattered light
    • B23K26/042—Automatically aligning the laser beam
    • B23K26/043—Automatically aligning the laser beam along the beam path, i.e. alignment of laser beam axis relative to laser beam apparatus
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/003—Alignment of optical elements
    • G02B7/004—Manual alignment, e.g. micromanipulators
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/023—Mountings, adjusting means, or light-tight connections, for optical elements for lenses permitting adjustment

Definitions

  • the invention relates to a laser beam adjustment device for deflecting the laser beam in the beam path of a laser processing device, in particular a laser cutting device.
  • Laser beam adjusting devices which are inserted into the laser processing device as a cassette module. Their optical elements, i. H. the lenses for focusing the laser beam are mounted by means of spiral springs; The laser beam is adjusted by means of two flaps and two adjusting screws for the two mutually perpendicular adjustment directions in the plane normal to the laser beam.
  • the adjustment elements are from the front of the laser beam adjustment device, i. H. can be operated or operated from the side facing the operator.
  • the disadvantage of this known solution is that no axis-correct adjustment is possible in the coordinate system of the laser processing optics. The mechanics, which cause a displacement of the optical element in both adjustment directions when one of the adjustment elements is actuated, therefore make operation by the machine user more difficult.
  • laser beam adjustment devices that are permanently installed in the laser processing head are known, which, although they allow axial adjustment in both adjustment directions, cannot be operated from one side of the laser beam adjustment device, since the first control element on the front surface and the second on a side surface of the storage serstrahljustiervorraum is arranged.
  • operation on the side surface is usually problematic due to the lack of accessibility for the machine operator.
  • the object of the invention is to provide a laser beam adjustment device which ensures an axis-accurate adjustment of the laser beam normal to its beam direction, the adjustment elements for adjustment from one side, preferably the front side, of the laser beam adjustment device being intended to be operable.
  • the laser beam adjustment device should be easy to replace for repair purposes.
  • the laser beam adjustment device for deflecting the laser beam in the beam path of a laser processing device has a holder with an optical element inserted therein for guiding the laser beam, for example a focusing lens, the holder being in a first adjustment direction (Y-) in a plane normal to the laser beam.
  • Direction) and in a second, perpendicular to the first direction oriented adjustment direction (X direction) is translatory.
  • the mount of the optical element is guided within a backdrop, which can be adjusted in the first adjustment direction (Y direction) by means of a first adjustment drive.
  • the socket In the second adjustment direction (X direction), the socket can be adjusted within the setting by means of an L-shaped lever.
  • one of the lever arms of the L-shaped lever rests on one side of the socket.
  • the holder When the lever is actuated via a second adjustment drive which is coupled to the other lever arm and which is arranged next to and preferably parallel to the first adjustment drive, the holder can be adjusted in the second adjustment direction (X direction).
  • the mount that can be moved within the setting can be reset by means of a spring element designed as a return spring.
  • the spring force of the return spring acts in the opposite direction to the fleece arm against the socket, ie the reset spring presses the socket against the attached fleece arm.
  • the laser-beam adjustment device with the link guide ensures that the optical element and thus the laser beam are adjusted in the optical system of the laser processing device;
  • the adjustment drives positioned next to each other make it possible to operate them side by side on the same side of the laser beam adjustment device.
  • first adjustment drive and the second adjustment drive screw gear are each with an adjustment axis, the adjustment axes of which are arranged parallel to one another.
  • the screw gears can be implemented, for example, in the form of an adjusting screw and a corresponding counter-thread element.
  • the adjustment drives are operated here by means of the heads of the adjustment screws which act as control elements and which are preferably attached to the front of the laser beam adjustment device.
  • the lever arm of the L-shaped lever which is coupled to the second adjustment drive is twice as long as the lever arm of the L-shaped lever which is in contact with the holder, the transmission ratio of the first adjustment drive being twice as large as that Gear ratio of the second adjustment drive, ie the gear ratio of the first adjustment drive is 1: 1 and the gear ratio of the second adjustment drive 1: 2.
  • the transmission ratio is understood to mean the ratio of the amount of the adjustment movement on the drive, ie on the control element, of the respective adjustment drive to the feed on the output of the respective adjustment drive, in particular the ratio of rotation on the drive to feed on the output.
  • the feed on the output of the second adjustment drive is consequently twice as large as the feed on the output of the first adjustment drive.
  • This version ensures an even adjustment in both adjustment directions.
  • the holder with the optical element is displaced in the first adjustment direction (Y direction) by a certain length;
  • the holder with the optical element is shifted in the second adjustment direction (X direction) by the same length.
  • the adjustment drives can in principle also be designed with different transmission ratios, for example by varying the thread pitches in the adjustment drives designed as screw drives. This makes it possible to achieve a different adjustment accuracy or resolution in the different adjustment directions.
  • the laser beam adjustment device can be designed for releasable insertion into the laser processing device, for example as a cassette module. This facilitates easy interchangeability in the case of repairs.
  • the laser beam adjustment device has guides for improving the linearity of the adjustment, for example a cylindrical pin-groove combination, which translates the link in the first adjustment direction (Y direction) within the laser beam adjustment device.
  • the frame and the setting can be fixed without play by means of spring elements.
  • the spring elements serve to compensate for the backlash of the adjustment drives during advance and return as well as the thread play of the adjustment drives designed as screw drives. This ensures a very precise adjustment of the optical element.
  • Fig. 2 the laser beam adjustment device in horizontal section
  • Fig. 3 the laser beam adjustment device in perspective view.
  • the laser beam adjustment device 1 according to FIG. 1 can be used as a cassette module with the housing insert 7 in the (not designated) part of the laser processing head of the laser processing device from its front F.
  • the link 3 and the lever 4 are attached to the housing insert 7.
  • the link 3 is translationally displaceable in the first adjustment direction (Y) via the first adjustment drive 5.
  • the L-shaped lever 4 is rotatably supported in its corner area.
  • the socket 2 of the (not designated) optical element is enclosed by the link 3 and the lever 4 and guided in the link 3.
  • the first adjustment drive 5 When the first adjustment drive 5 is actuated, the holder 2 is moved together with the link 3 in the first adjustment direction (Y).
  • the adjustment in the second adjustment direction (X) takes place via the second adjustment drive 6, the displacement in the first adjustment direction (Y) via the lever 4, the displacement of the frame which is in contact with the lever 4 and is guided within the link 3 2 in the second adjustment direction (X).
  • the backdrop 3 is - according to FIG. 3 - by means of the cylinder pin-groove combination 8 in the first adjustment direction (Y).
  • the spring elements 9 One of the spring elements 9 is the return spring 9.1 used in the link 3 for resetting the socket 2 not shown in FIG. 3 within the link 3 of the second adjustment direction (X).
  • the lever arm of the L-shaped lever 4 connected to the second adjustment drive 6 is twice as long as the lever arm resting on the socket 2.
  • the first adjustment drive 5 has an adjustment screw with a fine thread with a pitch of 0.5 mm and the second adjustment drive 6 an adjustment screw with a fine thread with a pitch of 1 mm. This and the play-free mounting allow adjustment accuracies of a few micrometers to be achieved.
  • the laser beam adjustment device 1 is operated via the two control elements 10, 11 arranged next to one another on the front side F.

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Laser Beam Processing (AREA)

Abstract

L'invention concerne un dispositif d'ajustement de faisceau laser (1) servant à dévier le faisceau laser dans le trajet optique d'un dispositif d'usinage laser, qui permet un ajustement conforme à l'axe du faisceau laser normal à la direction de celui-ci, les éléments de réglage pouvant être commandés pour l'ajustement à partir d'une face, de préférence la face avant (F), du dispositif d'ajustement de faisceau laser (1). Le dispositif d'ajustement de faisceau laser (1) possède une monture (2) dans laquelle est inséré un élément optique pour le guidage du faisceau laser. La monture (2) est guidée à l'intérieur d'une coulisse (3) et peut se déplacer au moyen de deux mécanismes de déplacement (5, 6) disposés parallèlement l'un à l'autre dans deux directions (X, Y) de déplacement perpendiculaires l'une à l'autre.
PCT/DE2019/100802 2018-09-27 2019-09-09 Dispositif d'ajustement de faisceau laser Ceased WO2020064051A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102018123844.4 2018-09-27
DE102018123844 2018-09-27
DE102018131889.8A DE102018131889B4 (de) 2018-09-27 2018-12-12 Laserstrahljustiervorrichtung
DE102018131889.8 2018-12-12

Publications (1)

Publication Number Publication Date
WO2020064051A1 true WO2020064051A1 (fr) 2020-04-02

Family

ID=69781003

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2019/100802 Ceased WO2020064051A1 (fr) 2018-09-27 2019-09-09 Dispositif d'ajustement de faisceau laser

Country Status (2)

Country Link
DE (1) DE102018131889B4 (fr)
WO (1) WO2020064051A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112114436A (zh) * 2020-09-15 2020-12-22 深圳市韵腾激光科技有限公司 一种长焦深激光切割头的装调方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022105838B3 (de) * 2022-03-14 2023-08-17 Helmut Fischer GmbH Institut für Elektronik und Messtechnik Justiereinheit für eine Röntgenoptik in einem Röntgenfluoreszenzgerät sowie Röntgenfluoreszenzgerät

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040017619A1 (en) * 2002-07-23 2004-01-29 Coretronic Corporation Adjusting apparatus for an optical device
DE102004005902B3 (de) 2004-02-05 2005-09-08 Messer Cutting & Welding Gmbh Vorrichtung für die Justierung eines Laserstrahls bei einer Laserbearbeitungsmaschine
DE102009037133A1 (de) * 2009-07-31 2011-02-03 Carl Zeiss Laser Optics Gmbh Haltevorrichtung für ein optisches Element
DE102009042529A1 (de) 2009-09-22 2011-05-26 Precitec Kg Laserbearbeitungskopf mit einer Fokuslagenjustageeinheit sowie ein System und ein Verfahren zum Justieren einer Fokuslage eines Laserstrahls
DE202015007130U1 (de) * 2015-10-13 2016-01-26 Gmt Global Inc. Optische, einstellbare Linsenhalterung für vertikale Montage
DE102016112176A1 (de) * 2016-07-04 2018-01-04 Precitec Gmbh & Co. Kg Vorrichtung zum Einführen einer Optik in den Strahlengang eines Laserbearbeitungskopfes und Laserbearbeitungskopf mit derselben

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103930235B (zh) 2011-10-01 2015-11-25 Ipg光子公司 用于激光加工系统的头部组件

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040017619A1 (en) * 2002-07-23 2004-01-29 Coretronic Corporation Adjusting apparatus for an optical device
DE102004005902B3 (de) 2004-02-05 2005-09-08 Messer Cutting & Welding Gmbh Vorrichtung für die Justierung eines Laserstrahls bei einer Laserbearbeitungsmaschine
DE102009037133A1 (de) * 2009-07-31 2011-02-03 Carl Zeiss Laser Optics Gmbh Haltevorrichtung für ein optisches Element
DE102009042529A1 (de) 2009-09-22 2011-05-26 Precitec Kg Laserbearbeitungskopf mit einer Fokuslagenjustageeinheit sowie ein System und ein Verfahren zum Justieren einer Fokuslage eines Laserstrahls
DE202015007130U1 (de) * 2015-10-13 2016-01-26 Gmt Global Inc. Optische, einstellbare Linsenhalterung für vertikale Montage
DE102016112176A1 (de) * 2016-07-04 2018-01-04 Precitec Gmbh & Co. Kg Vorrichtung zum Einführen einer Optik in den Strahlengang eines Laserbearbeitungskopfes und Laserbearbeitungskopf mit derselben

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112114436A (zh) * 2020-09-15 2020-12-22 深圳市韵腾激光科技有限公司 一种长焦深激光切割头的装调方法
CN112114436B (zh) * 2020-09-15 2021-06-01 深圳市韵腾激光科技有限公司 一种长焦深激光切割头的装调方法

Also Published As

Publication number Publication date
DE102018131889A1 (de) 2020-04-02
DE102018131889B4 (de) 2021-08-12

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