WO2009115598A1 - Dispositif de guidage pour guider des rayons lumineux, découpeuse à laser équipée de celui-ci et équipement de fabrication doté de celui-ci pour la fabrication d’une préforme pour des structures renforcées de fibres adaptées au flux des contraintes - Google Patents

Dispositif de guidage pour guider des rayons lumineux, découpeuse à laser équipée de celui-ci et équipement de fabrication doté de celui-ci pour la fabrication d’une préforme pour des structures renforcées de fibres adaptées au flux des contraintes Download PDF

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Publication number
WO2009115598A1
WO2009115598A1 PCT/EP2009/053293 EP2009053293W WO2009115598A1 WO 2009115598 A1 WO2009115598 A1 WO 2009115598A1 EP 2009053293 W EP2009053293 W EP 2009053293W WO 2009115598 A1 WO2009115598 A1 WO 2009115598A1
Authority
WO
WIPO (PCT)
Prior art keywords
light beams
steering device
state actuators
solid state
laser
Prior art date
Application number
PCT/EP2009/053293
Other languages
German (de)
English (en)
Inventor
Oliver Meyer
Thomas Wechs
Original Assignee
Eads Deutschland 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 Eads Deutschland Gmbh filed Critical Eads Deutschland Gmbh
Publication of WO2009115598A1 publication Critical patent/WO2009115598A1/fr

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/0875—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more refracting elements
    • 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
    • B23K26/08—Devices involving relative movement between laser beam and workpiece
    • B23K26/082—Scanning systems, i.e. devices involving movement of the laser beam relative to the laser head
    • 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
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/30—Organic material
    • B23K2103/38—Fabrics, fibrous materials
    • 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
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/50—Inorganic material, e.g. metals, not provided for in B23K2103/02 – B23K2103/26

Definitions

  • Steering device for guiding light beams thus provided laser cutting device and provided therewith manufacturing device for producing a preform for power flow fair fiber composite structures
  • the invention relates to a steering device for directing light beams, in particular laser beams, with an optical deflection device which is arranged in an optical path of the light beams. Furthermore, the invention relates to a provided with such a steering device laser cutting device and advantageous uses thereof.
  • Such steering devices are used for example in laser scanners.
  • a laser assembly with rigid optics is attached to a movable and / or rotatable robot arm and moved from this to the desired position.
  • the present invention is based on the object to provide a steering device of the type mentioned, which has an improved accuracy and speed.
  • the steering device according to the invention in which the optical deflection device for guiding the light beams is movable by means of solid state actuators, has the particular advantage that due to the increased accuracy of the positioning of the optical deflection device, a very high repeatability of the light beam path is given.
  • the optical deflection device may comprise an optical deflection lens. Therefore, the steering device is almost independent of the power of the deflected light beams and also of the source of the light beams.
  • the optical deflection device may have a frame on which the solid state actuators act. This makes it possible to attach the optical deflection device to the solid-state actuators even if the optical deflection device and the solid-state actuators can not be directly connected to each other due to the materials used.
  • the stability of the deflector is improved. In particular, more fragile deflection devices, for example particularly sensitive deflection lenses, can be used.
  • the solid-state actuators can be arranged at opposite points of the deflecting device. This makes it possible to achieve a uniform tensile and compressive loading of the optical deflection by each opposite activation of the solid state actuators.
  • the solid-state actuators may be arranged to move the deflection device in a direction which is substantially transverse to the direction of the light rays. Thus, by shifting the optical deflection device substantially orthogonal to the propagation direction of the light beams, a deflection thereof can be achieved.
  • the solid-state actuators may be arranged to move the deflection device in a direction which is substantially parallel to the direction of the light rays. This makes it possible to tilt the deflection device.
  • the solid state actuators have piezo elements.
  • a piezoelectric actuator can perform a change in length practically immediately by applying a voltage and at the same time generate high forces.
  • a movement device constructed with piezoelectric elements can also be electrically controlled directly. On mechanical components can be largely dispensed with.
  • the solid-state actuators can have a plurality of actuator elements, which are arranged in series in their main expansion direction. If solid state actuators are stacked, the individual length changes add up. Thus, the deflection device can be moved over longer distances.
  • the solid state actuators are biased to further increase the reaction speed of the steering device.
  • the invention is directed to a laser cutter.
  • a compact laser cutter, with cuts to be made exactly A laser cutting device is provided which is provided with the steering device according to the invention or one of its advantageous embodiments, reproducibly easily controllable and can be repeated in quick succession.
  • the laser cutter is used for cutting carbon fibers.
  • the laser cutting device is particularly preferably used in a production device for the production of preforms for power flow compatible fiber composite structures.
  • FIG. 1 shows a three-dimensional view of an embodiment of the steering device according to the present invention.
  • the laser source 10 has a laser (not shown).
  • the laser 12 emits a laser beam 14, which is deflected by the deflector 20 to an adjustable target point 16a, 16b, 16c here.
  • the deflection device 20 has a Ablenkklinse 22 and a perpendicular to the Ablenklinse 22 movable collecting lens 12.
  • the Ablenklinse 22 has a curved refractive region 24 and a substantially cylindrical mounting portion 26, which adjoins the refraction region 24.
  • the attachment portion 26 is connected to a frame 28.
  • the frame 28 has the shape of a Ablenklinse 22 enclosing ring.
  • Solid state actuators 30 engage the frame 28.
  • the solid state actuators 30 each have ten piezoelectric elements 32 which are composed so that their main expansion directions 34 substantially coincide.
  • the pie Zoimplantation 32 are based in the main expansion direction 34 from each other, so that the expansions or shrinkages of the piezo elements 32 add.
  • the solid-state actuators 30 are arranged at opposite positions on the outer surface of the frame 28 and supported on a housing, not shown.
  • the deflection lens 22 is substantially circular in orthogonal view of the refraction region 24. If a light beam strikes the center of this circle, it will not be deflected when passing through the deflection lens 22. However, as soon as the light beam hits the Ablenkklinse 22 away from the center, it is deflected. Thus, when the light beam does not change position, its deflection is achieved by movement of the diverter lens 22.
  • a laser beam 14 generated by the laser is deflected by the deflection lens 22.
  • the deflection lens 22 is displaced by the solid-state actuators 30 essentially orthogonally to the propagation direction of the laser beam 14.
  • the deflection lens 22 can focus the laser beam 14 on target points 16a, 16b, 16c, which are given here only as examples.
  • the focal point of the Ablenklinse 22 can be moved purely by movement of the Ablenklinse 22 within its main extension plane. Adjustments in the direction perpendicular thereto are possible via the converging lens 12.
  • the repeatability of a laser scanner can be significantly increased, resulting in new applications. If the lens is moved in the X, Y, or Z direction by piezo actuators, for example, then the focal point can be moved in space.
  • the piezoelectric laser beam deflection system achieves a very high precision and repeat accuracy as well as a high degree of accuracy compared to known systems. speed. As a result, cutting processes that require a stratified material removal are made possible.
  • the system is relatively stable to temperature fluctuations and the laser beam 14 can be repeatedly guided through the same kerf (20-50 ⁇ m wide) with high repeat accuracy.
  • the contact-free cutting of carbon fiber materials is possible.
  • the technique can be used for projection purposes. Regardless of external influences (acceleration, vibration, temperature fluctuation), a stable image can be generated.
  • Fig. 1 shows schematically the structure of a piezoelectric Strahlablenksystems with movable lens.
  • the unfocused laser beam 14 is guided onto the suitably formed deflection lens 22.
  • the Ablenklinse 22 can be moved by a cross-shaped system of the piezoelectric solid state actuators 30 in the laser beam 14 orthogonal plane. This results in a shift of the focal point, for example, to the positions 16a, 16b, 16c.
  • An advantage over classical beam deflection systems is that thermal expansions of the structure are automatically compensated for and that position changes result in direct dependence on voltages applied to the piezoelectric elements 32.
  • the voltage of two piezoelectric elements 32 lying on one spatial axis should in this case be inversely proportional and the piezoelectric elements 32 should be biased in order to achieve a stable displacement.
  • the piezo elements 32 are designed, for example, as disk-shaped piezo wheels.
  • the achievable displacement length can be adjusted by the number of piezoelectric disks used in the solid-state actuator 30.
  • a voltage is applied, very large forces are generated by the Ablenklinse 22 at high speed. Move the speed and precision to the desired position. A Nachschwingen carrier masses is thus largely avoided. Due to the fact that no mechanical components are necessary, no tolerance errors or wear occur.
  • the scanner system is largely independent of the laser power and the beam source.
  • such a system can be used for gradual material removal as in milling.
  • the laser beam 14 can be repeatedly performed with great precision through a previously formed kerf.
  • the high beam guidance accuracy makes larger working distances possible.
  • the deflection device 20 can in principle also be used for projection systems. Since the structure is small and stable to accelerate, it can be used for example in vehicles or aircraft.
  • the laser is designed as a cutting laser. From the laser and the deflection device 20, a laser cutting device is thus formed, which is particularly suitable for cutting carbon fiber materials.
  • the laser cutting device is used as a cutting device in the production method and the production device for the production of preforms for power flow compatible fiber composite structures, which are described, shown and claimed in more detail in WO 2008/110614 A1. Reference is made to this document for further details. WO 2008/110614 A1 is incorporated herein by reference. LIST OF REFERENCE NUMBERS

Landscapes

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

Abstract

L’invention concerne un dispositif de guidage (20) pour guider des rayons lumineux, notamment des rayons laser (14), comprenant un dispositif de déviation optique (20) qui est disposé dans un trajet lumineux des rayons laser (14) et qui peut être déplacé au moyen d’actionneurs à corps fixe (30) pour guider les rayons lumineux (14). Le dispositif de guidage (20) conforme à l’invention, avec lequel le dispositif de déviation optique (20) peut être déplacé au moyen d’actionneurs à corps fixe (30) pour guider les rayons lumineux (14), présente notamment pour avantage que la précision accrue du positionnement du dispositif de déviation optique (20) permet de disposer d’une très grande précision de répétition du trajet du rayon lumineux.
PCT/EP2009/053293 2008-03-20 2009-03-20 Dispositif de guidage pour guider des rayons lumineux, découpeuse à laser équipée de celui-ci et équipement de fabrication doté de celui-ci pour la fabrication d’une préforme pour des structures renforcées de fibres adaptées au flux des contraintes WO2009115598A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008015281A DE102008015281A1 (de) 2008-03-20 2008-03-20 Vorrichtung zur Lenkung von Lichtstrahlen
DE102008015281.1 2008-03-20

Publications (1)

Publication Number Publication Date
WO2009115598A1 true WO2009115598A1 (fr) 2009-09-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/053293 WO2009115598A1 (fr) 2008-03-20 2009-03-20 Dispositif de guidage pour guider des rayons lumineux, découpeuse à laser équipée de celui-ci et équipement de fabrication doté de celui-ci pour la fabrication d’une préforme pour des structures renforcées de fibres adaptées au flux des contraintes

Country Status (2)

Country Link
DE (1) DE102008015281A1 (fr)
WO (1) WO2009115598A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009029772A1 (de) 2009-06-18 2010-12-30 Eads Deutschland Gmbh Transportband für Fasergebilde sowie Verwendungen desselben
EP2952948A1 (fr) 2014-06-06 2015-12-09 Airbus Defence and Space GmbH Dispositif de chauffage thermique utilisant la lumière pour l'activation de liant et son intégration dans un dispositif de préformage
WO2019001847A1 (fr) * 2017-06-29 2019-01-03 Technische Universität Hamburg-Harburg Système de coupe au laser

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011054109A1 (de) * 2011-09-30 2013-04-04 Hermann LeGuin Verfahren zum Schweissen von Werkstücken
DE102018200037B4 (de) * 2018-01-03 2020-12-17 Technische Universität Dresden Optische Anordnung zur Ausbildung von Strukturelementen mit schräg geneigten Oberflächen

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GB1514687A (en) * 1976-12-16 1978-06-21 Decca Ltd Vibratile optical boresight
JPS60139437A (ja) * 1983-12-28 1985-07-24 Toshiba Corp 高エネルギ−ビ−ムによる繊維強化プラスチツクの加工方法
JPH01233477A (ja) * 1988-03-15 1989-09-19 Matsushita Electric Ind Co Ltd 映像表示装置
GB2289773A (en) * 1994-05-25 1995-11-29 Marconi Gec Ltd Piezoelectric scanner
US5500505A (en) * 1994-05-09 1996-03-19 General Electric Company Method for cutting epoxy/carbon fiber composite with lasers
US6575963B1 (en) * 1997-07-16 2003-06-10 The Lion Eye Institute Of Western Australia Incorporated Laser scanning apparatus and method
US6680788B1 (en) * 2000-10-12 2004-01-20 Mcnc Scanning apparatus and associated method
US7129472B1 (en) * 1999-10-06 2006-10-31 Olympus Corporation Optical scanning probe system

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US4385373A (en) * 1980-11-10 1983-05-24 Eastman Kodak Company Device for focus and alignment control in optical recording and/or playback apparatus
JPS6057546A (ja) * 1983-09-07 1985-04-03 Seiko Epson Corp 光学ヘッド
JPH01300433A (ja) * 1988-05-30 1989-12-04 Fuji Elelctrochem Co Ltd レンズアクチュエータ
DE4400869C1 (de) * 1994-01-14 1995-03-02 Jenoptik Jena Gmbh Vorrichtung zur lateralen Justierung von Linsen innerhalb eines Hochleistungsobjektives
JPH11110768A (ja) * 1997-09-30 1999-04-23 Sony Corp 光ピックアップ装置

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Publication number Priority date Publication date Assignee Title
GB1514687A (en) * 1976-12-16 1978-06-21 Decca Ltd Vibratile optical boresight
JPS60139437A (ja) * 1983-12-28 1985-07-24 Toshiba Corp 高エネルギ−ビ−ムによる繊維強化プラスチツクの加工方法
JPH01233477A (ja) * 1988-03-15 1989-09-19 Matsushita Electric Ind Co Ltd 映像表示装置
US5500505A (en) * 1994-05-09 1996-03-19 General Electric Company Method for cutting epoxy/carbon fiber composite with lasers
GB2289773A (en) * 1994-05-25 1995-11-29 Marconi Gec Ltd Piezoelectric scanner
US6575963B1 (en) * 1997-07-16 2003-06-10 The Lion Eye Institute Of Western Australia Incorporated Laser scanning apparatus and method
US7129472B1 (en) * 1999-10-06 2006-10-31 Olympus Corporation Optical scanning probe system
US6680788B1 (en) * 2000-10-12 2004-01-20 Mcnc Scanning apparatus and associated method

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DATABASE WPI Week 198536, Derwent World Patents Index; AN 1985-219426, XP002535521 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009029772A1 (de) 2009-06-18 2010-12-30 Eads Deutschland Gmbh Transportband für Fasergebilde sowie Verwendungen desselben
DE102009029772B4 (de) * 2009-06-18 2014-01-16 Eads Deutschland Gmbh Transportband für Fasergebilde sowie Verwendungen desselben
EP2952948A1 (fr) 2014-06-06 2015-12-09 Airbus Defence and Space GmbH Dispositif de chauffage thermique utilisant la lumière pour l'activation de liant et son intégration dans un dispositif de préformage
WO2015185203A2 (fr) 2014-06-06 2015-12-10 Airbus Defence and Space GmbH Dispositif de chauffage thermique utilisant la lumière pour l'activation de liant et son intégration dans un dispositif de préformage
US10759094B2 (en) 2014-06-06 2020-09-01 Airbus Defence and Space GmbH Thermal heating device using light for binder activation and its integration in preforming device
WO2019001847A1 (fr) * 2017-06-29 2019-01-03 Technische Universität Hamburg-Harburg Système de coupe au laser

Also Published As

Publication number Publication date
DE102008015281A1 (de) 2009-10-08

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