DE102024002568A1 - Laser welding device for welding plastic components and method for welding plastic components - Google Patents
Laser welding device for welding plastic components and method for welding plastic components Download PDFInfo
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- DE102024002568A1 DE102024002568A1 DE102024002568.5A DE102024002568A DE102024002568A1 DE 102024002568 A1 DE102024002568 A1 DE 102024002568A1 DE 102024002568 A DE102024002568 A DE 102024002568A DE 102024002568 A1 DE102024002568 A1 DE 102024002568A1
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- laser light
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- light emitters
- plastic component
- receptacles
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- 238000003466 welding Methods 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title claims abstract description 9
- 230000001419 dependent effect Effects 0.000 claims description 5
- 230000004913 activation Effects 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 2
- 239000011521 glass Substances 0.000 description 3
- 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
- 230000003213 activating effect Effects 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/16—Laser beams
- B29C65/1629—Laser beams characterised by the way of heating the interface
- B29C65/1635—Laser beams characterised by the way of heating the interface at least passing through one of the parts to be joined, i.e. laser transmission welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/16—Laser beams
- B29C65/1629—Laser beams characterised by the way of heating the interface
- B29C65/1664—Laser beams characterised by the way of heating the interface making use of several radiators
- B29C65/1667—Laser beams characterised by the way of heating the interface making use of several radiators at the same time, i.e. simultaneous laser welding
- B29C65/167—Laser beams characterised by the way of heating the interface making use of several radiators at the same time, i.e. simultaneous laser welding using laser diodes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/16—Laser beams
- B29C65/1677—Laser beams making use of an absorber or impact modifier
- B29C65/1683—Laser beams making use of an absorber or impact modifier coated on the article
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/16—Laser beams
- B29C65/1687—Laser beams making use of light guides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/112—Single lapped joints
- B29C66/1122—Single lap to lap joints, i.e. overlap joints
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/53—Joining single elements to tubular articles, hollow articles or bars
- B29C66/532—Joining single elements to the wall of tubular articles, hollow articles or bars
- B29C66/5326—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially flat
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/832—Reciprocating joining or pressing tools
- B29C66/8322—Joining or pressing tools reciprocating along one axis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/84—Specific machine types or machines suitable for specific applications
- B29C66/843—Machines for making separate joints at the same time in different planes; Machines for making separate joints at the same time mounted in parallel or in series
- B29C66/8432—Machines for making separate joints at the same time mounted in parallel or in series
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/87—Auxiliary operations or devices
- B29C66/872—Starting or stopping procedures
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
- B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
- B29C66/242—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours
- B29C66/2424—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain
- B29C66/24241—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain forming a triangle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
- B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
- B29C66/242—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours
- B29C66/2424—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain
- B29C66/24243—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain forming a quadrilateral
- B29C66/24244—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain forming a quadrilateral forming a rectangle
- B29C66/24245—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain forming a quadrilateral forming a rectangle forming a square
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
- B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
- B29C66/242—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours
- B29C66/2424—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain
- B29C66/24249—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain forming a specific polygon not provided for in B29C66/24241 - B29C66/24243
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Optics & Photonics (AREA)
- Health & Medical Sciences (AREA)
- Electromagnetism (AREA)
- Toxicology (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Die vorliegende Erfindung betrifft ein Laserschweißgerät (1) zum Schweißen von Kunststoffbauteilen (100, 200) miteinander.
Das Laserschweißgerät (1) weist eine Druckplatte (2) zum Drücken der Kunststoffbauteile (100, 200) gegeneinander auf, welche zudem Aufnahmen (3) zum Aufnehmen von Laserlichtstrahlern (4) aufweist.
Die Erfindung betrifft zudem ein Verfahren zum Schweißen von Kunststoffbauteilen (100, 200) miteinander mittels eines solchen Laserschweißgeräts (1).
The present invention relates to a laser welding device (1) for welding plastic components (100, 200) together.
The laser welding device (1) has a pressure plate (2) for pressing the plastic components (100, 200) against each other, which also has receptacles (3) for receiving laser light emitters (4).
The invention also relates to a method for welding plastic components (100, 200) to one another by means of such a laser welding device (1).
Description
Die vorliegende Erfindung betrifft ein Laserschweißgerät zum Schweißen von Kunststoffbauteilen miteinander. Die Erfindung betrifft zudem ein Verfahren zum Schweißen von Kunststoffbauteilen miteinander mittels eines solchen Laserschweißgeräts.The present invention relates to a laser welding device for welding plastic components together. The invention also relates to a method for welding plastic components together using such a laser welding device.
Zum Schweißen von Kunststoffbauteilen miteinander mittels Laserstrahlen werden die Kunststoffbauteile, wie beispielsweise in der
Weitere Laserschweißgeräte zum Schweißen und Kunststoffbauteilen miteinander sind aus der
Die vorliegende Erfindung beschäftigt sich mit der Aufgabe, für ein Laserschweißgerät der vorstehend genannten Art sowie für ein Verfahren zum Schweißen von Kunststoffbauteilen miteinander verbesserte oder zumindest andere Ausführungsformen anzugeben.The present invention is concerned with the object of providing improved or at least different embodiments for a laser welding device of the type mentioned above and for a method for welding plastic components together.
Diese Aufgabe wird erfindungsgemäß durch die Gegenstände der unabhängigen Ansprüche gelöst. Vorteilhafte Ausführungsformen sind Gegenstand der abhängigen Ansprüche.This object is achieved according to the invention by the subject matter of the independent claims. Advantageous embodiments are the subject matter of the dependent claims.
Die Erfindung beruht demnach auf dem Grundgedanken, eine im Stand der Technik zum Schweißen von Kunststoffbauteilen verwendete und von Laserschweißgeräten separate Druckplatte integral in einem Laserschweißgerät einzubinden und in der Druckplatte Laserlichtstrahler zum Schweißen der Kunststoffbauteile miteinander variabel aufzunehmen. Somit entfällt eine separate Anordnung der Druckplatte auf die Kunststoffbauteile und eine anschließende Ausrichtung der Laserlichtstrahler. Dies führt zu einer erheblichen Vereinfachung beim Schweißen der Kunststoffbauteile miteinander.The invention is therefore based on the basic idea of integrating a pressure plate used in the prior art for welding plastic components and separate from laser welding devices into a laser welding device and variably accommodating laser light emitters in the pressure plate for welding the plastic components together. This eliminates the need for a separate arrangement of the pressure plate on the plastic components and subsequent alignment of the laser light emitters. This leads to a considerable simplification when welding the plastic components together.
Gemäß dem Grundgedanken weist das Laserschweißgerät die Druckplatte auf. Die Druckplatte dient beim Schweißen von Kunststoffbauteilen miteinander dem mechanischen Drücken der miteinander zu verschweißenden Kunststoffbauteile gegeneinander. Die Druckplatte weist Aufnahmen zur Aufnahme jeweils eines Laserlichtstrahlers auf. Die jeweilige Aufnahme ist dabei an einer Unterseite der Druckplatte in einem Abschnitt laserlichtdurchlässig, welcher Abschnitt nachfolgend auch als Emissionsabschnitt bezeichnet wird. Zumindest in einem Teil der Aufnahmen ist jeweils ein zugehöriger Laserlichtstrahler aufgenommen, wobei der jeweilige Laserlichtstrahler im aktivierten Zustand zum Schweißen der Kunststoffbauteile miteinander Laserlicht über den zugehörigen Emissionsabschnitt ausstrahlt.According to the basic idea, the laser welding device has the pressure plate. When welding plastic components together, the pressure plate is used to mechanically press the plastic components to be welded together against each other. The pressure plate has receptacles for each holding a laser light emitter. Each receptacle is laser-transmissive in a section on the underside of the pressure plate, which section is also referred to below as the emission section. At least one part of the receptacles each hold an associated laser light emitter, whereby the respective laser light emitter emits laser light via the associated emission section when activated to weld the plastic components together.
In den Aufnahmen der Druckplatte sind die Laserlichtstrahler vorzugsweise lösbar angeordnet und aufgenommen. Das heißt, dass eine variable Bestückung der Druckplatte mit den Laserlichtstrahlern möglich ist. Somit kann die Druckplatte je nach miteinander zu verschweißenden Kunststoffbauteilen anders bestückt werden. Dies erlaubt einen variablen Einsatz des Laserschweißgerät.The laser light emitters are preferably arranged and mounted in the holders of the printing plate in a detachable manner. This means that the printing plate can be equipped with the laser light emitters in a variable manner. The printing plate can therefore be equipped differently depending on the plastic components to be welded together. This allows the laser welding device to be used in a variable manner.
Die Druckplatte kann prinzipiell optisch beliebig ausgestaltet sein, sofern die Emissionsabschnitte laserlichtdurchlässig sind.In principle, the printing plate can be optically designed in any way, provided that the emission sections are laser-transmissive.
Vorstellbar ist es insbesondere, die Druckplatte insgesamt laserlichtdurchlässig, beispielsweise als Glasplatte, auszubilden.It is particularly conceivable to design the printing plate as a whole to be laser-transparent, for example as a glass plate.
Der jeweilige Laserlichtstrahler kann prinzipiell ein solcher beliebiger Art sein, sofern aus dem Laserlichtstrahler im aktivierten Zustand Laserlicht ausgegeben wird.In principle, the respective laser light emitter can be of any type, provided that laser light is emitted from the laser light emitter when activated.
Beispielsweise kann zumindest einer der Laserlichtstrahler eine Laserlichtquelle, insbesondere eine Laserdiode, sein.For example, at least one of the laser light emitters can be a laser light source, in particular a laser diode.
Beispielsweise kann zumindest einer der Laserlichtstrahler eine Lichtfaser sein, der mit einer Laserquelle verbunden ist.For example, at least one of the laser light emitters may be an optical fiber connected to a laser source.
Die Aufnahmen sind bevorzugt in der Art eines Lochmusters in der Druckplatte angeordnet. Dies erlaubt eine hohe Variabilität in der Bestückung der Druckplatte mit Laserlichtstrahlern.The receptacles are preferably arranged in the form of a hole pattern in the printing plate. This allows a high degree of variability in equipping the printing plate with laser light emitters.
Bevorzugt ist das Laserschweißgerät derart ausgestaltet, dass die Laserlichtstrahler beim Überschreiten einer vorgegebenen Kraft auf die Unterseite aktiviert werden. In der Anwendung des Laserschweißgerät heißt das, dass die Laserlichtstrahler erst dann aktiviert werden, wenn die zu verschweißenden Kunststoffbauteile in ihren Fügebereichen mit einer vorgegebenen Kraft gegeneinander gedruckt werden. Dies führt zu einer erheblichen Vereinfachung beim Schweißen der Kunststoffbauteile miteinander.The laser welding device is preferably designed in such a way that the laser light emitters are activated when a predetermined force is exceeded on the underside. In the application of the laser welding device, this means that the laser light emitters are only activated when the plastic components to be welded are pressed against each other in their joining areas with a predetermined force. This leads to a significant simplification when welding the plastic components together.
Alternativ bevorzugt ist das Laserschweißgerät derart ausgestaltet, dass der jeweilige Laserlichtstrahler beim Überschreiten einer vorgegebenen Kraft auf den zugehörigen Emissionsabschnitt aktiviert wird. Somit kommt es also zu einer selektiven Aktivierung der Laserlichtstrahler abhängig von der auf den zugehörigen Emissionsabschnitt wirkenden Kraft. Dies führt zu einer weiteren Individualisierung und Variabilität im Schweißen der Kunststoffbauteile miteinander.Alternatively, the laser welding device is preferably designed in such a way that the respective laser light emitter is activated when a predetermined force is exceeded on the associated emission section. This results in a selective Activation of the laser light emitters depending on the force acting on the corresponding emission section. This leads to further individualization and variability in the welding of the plastic components together.
Zur kraftabhängigen Aktivierung der Laserlichtstrahler kann das Laserschweißgerät beliebig ausgestaltet sein.The laser welding device can be designed as desired to activate the laser light emitters depending on the force.
Beispielsweise kann das Laserschweißgerät zur kraftabhängigen Aktivierung der Laserlichtstrahler zumindest einen Drucksensor zur Ermittlung der auf die Unterseite, insbesondere auf die Emissionsabschnitte, wirkenden Kraft aufweisen.For example, the laser welding device can have at least one pressure sensor for determining the force acting on the underside, in particular on the emission sections, for force-dependent activation of the laser light emitters.
Zum Umfang der Erfindung gehört zudem ein Verfahren zum Schweißen von Kunststoffbauteilen miteinander, bei welchem das Laserschweißgerät zum Einsatz kommt.The scope of the invention also includes a method for welding plastic components together, in which the laser welding device is used.
Die beiden miteinander zu verbindenden Kunststoffbauteile werden nachfolgend zur besseren Unterscheidung auch als erstes Kunststoffbauteil und zweites Kunststoffbauteil bezeichnet. Das erste Kunststoffbauteil wird mit abstehenden und laserlichtabsorbierenden Stegen versehen bzw. hergestellt. Das zweite Kunststoffbauteil wird als laserlichttransparentes Bauteil bereitgestellt und auf die Stege angeordnet. Das Laserschweißgerät wird mit der Unterseite der Druckplatte auf die von den Stegen abgewandten Seite des zweiten Kunststoffbauteils angeordnet. Die Druckplatte wird gegen das zweite Kunststoffbauteil gedrückt, sodass die Kunststoffbauteile gegeneinander gedrückt werden. Zudem werden die Laserlichtstrahler aktiviert, sodass die Stege mittels der Laserstrahlen mit dem zweiten Kunststoffbauteil verschweißt werden.The two plastic components to be connected to one another are referred to below as the first plastic component and the second plastic component to make them easier to distinguish. The first plastic component is provided or manufactured with protruding and laser light-absorbing webs. The second plastic component is provided as a laser light-transparent component and is arranged on the webs. The laser welding device is arranged with the underside of the pressure plate on the side of the second plastic component facing away from the webs. The pressure plate is pressed against the second plastic component so that the plastic components are pressed against one another. In addition, the laser light emitters are activated so that the webs are welded to the second plastic component using the laser beams.
Bevorzugt sind Varianten, bei welchen lediglich diejenigen Laserlichtstrahler aktiviert werden, deren Emissionsabschnitte bei der Anordnung der Druckplatte auf dem zweiten Kunststoffbauteil einen solchen Steg überdecken. Somit kommt es zu einer selektiven Bestrahlung. In der Folge sind sowohl Beschädigungen der Kunststoffbauteile als auch die benötigte Energie reduziert.Preferred variants are those in which only those laser light emitters are activated whose emission sections cover such a web when the printing plate is arranged on the second plastic component. This results in selective irradiation. As a result, both damage to the plastic components and the energy required are reduced.
Die selektive Bestrahlung kann durch die Bestückung der Laserlichtstrahler in den Aufnahmen der Druckplatte erreicht werden. Das heißt, dass die Laserlichtstrahler derart in den Aufnahmen angeordnet werden, dass die Stege bei der Anordnung der Druckplatte auf dem zweiten Kunststoffbauteil von den Emissionsabschnitten der mit Laserlichtstrahlern versehenen Aufnahmen überdeckt sind.Selective irradiation can be achieved by fitting the laser light emitters in the holders of the printing plate. This means that the laser light emitters are arranged in the holders in such a way that the webs are covered by the emission sections of the holders equipped with laser light emitters when the printing plate is arranged on the second plastic component.
Bevorzugt sind Ausführungsformen, bei welchen die Laserlichtstrahler derart in den Aufnahmen angeordnet werden, dass die Aufnahmen der bei der Anordnung der Druckplatte auf dem zweiten Kunststoffbauteil zu den Stegen versetzten Emissionsabschnitte frei von Laserlichtstrahlern sind. Das heißt, dass lediglich diejenigen Aufnahmen mit Laserlichtstrahlern bestückt werden, deren Emissionsabschnitte bei der Anordnung der Druckplatte auf dem zweiten Kunststoffbauteil einen Steg überdecken. Dies führt insbesondere zu einem reduzierten Energieverbrauch und/oder einem vereinfachten Betrieb des Laserschweißgeräts.Preferred embodiments are those in which the laser light emitters are arranged in the receptacles in such a way that the receptacles of the emission sections offset from the webs when the printing plate is arranged on the second plastic component are free of laser light emitters. This means that only those receptacles are equipped with laser light emitters whose emission sections cover a web when the printing plate is arranged on the second plastic component. This leads in particular to reduced energy consumption and/or simplified operation of the laser welding device.
Die miteinander zu verbindenden Kunststoffbauteile und/oder die miteinander verbundenen Kunststoffbauteile können in beliebigen Anwendungen zum Einsatz kommen.The plastic components to be joined together and/or the plastic components joined together can be used in any application.
Beispielsweise kommen die miteinander verbundenen Kunststoffbauteile in einem Kraftfahrzeug zum Einsatz.For example, the interconnected plastic components are used in a motor vehicle.
Weitere wichtige Merkmale und Vorteile der Erfindung ergeben sich aus den Unteransprüchen, aus den Zeichnungen und aus der zugehörigen Figurenbeschreibung anhand der Zeichnungen.Further important features and advantages of the invention emerge from the subclaims, from the drawings and from the associated description of the figures based on the drawings.
Es versteht sich, dass die vorstehend genannten und die nachstehend noch zu erläuternden Merkmale nicht nur in der jeweils angegebenen Kombination, sondern auch in anderen Kombinationen oder in Alleinstellung verwendbar sind, ohne den Rahmen der vorliegenden Erfindung zu verlassen.It is understood that the features mentioned above and those to be explained below can be used not only in the combination specified in each case, but also in other combinations or on their own, without departing from the scope of the present invention.
Bevorzugte Ausführungsbeispiele der Erfindung sind in den Zeichnungen dargestellt und werden in der nachfolgenden Beschreibung näher erläutert, wobei sich gleiche Bezugszeichen auf gleiche oder ähnliche oder funktional gleiche Bauteile beziehen.Preferred embodiments of the invention are illustrated in the drawings and are explained in more detail in the following description, wherein the same reference numerals refer to the same or similar or functionally identical components.
Dabei zeigen, jeweils schematisch:
-
1 eine Draufsicht auf ein erstes Kunststoffbauteil -
2 eine Seitenansicht des ersten Kunststoffbauteils, -
3 eine Draufsicht auf eine Anordnung eines zweiten Kunststoffbauteils auf das erste Kunststoffbauteil, -
4 eine Seitenansicht der in3 gezeigten Anordnung, -
5 eine Draufsicht auf ein Laserschweißgerät, -
6 die in4 gezeigte Seitenansicht beim Schweißen der Kunststoffbauteile miteinander mittels des Laserschweißgeräts.
-
1 a top view of a first plastic component -
2 a side view of the first plastic component, -
3 a plan view of an arrangement of a second plastic component on the first plastic component, -
4 a side view of the3 arrangement shown, -
5 a top view of a laser welding machine, -
6 the in4 shown side view of the plastic components being welded together using the laser welding device.
Ein in den
Wie insbesondere den
Wie den
Gemäß den
In den gezeigten Ausführungsbeispielen handelt es sich bei dem jeweiligen Laserlichtstrahler 4 um eine Laserdiode 8 oder eine Lichtfaser 9, die mit einer nicht gezeigten Laserquelle verbunden ist.In the embodiments shown, the respective laser light emitter 4 is a laser diode 8 or a light fiber 9, which is connected to a laser source not shown.
Wie einer Zusammenschau der
Den
Wie
In den gezeigten Ausführungsbeispielen erfolgt die Aktivierung der Laserlichtstrahler 4 beim Überschreiten einer vorgegebenen, auf die Druckplatte 2 wirkenden Kraft und somit kraftabhängig. Dabei können entweder sämtliche Laserlichtstrahler 4 aktiviert werden, wenn eine vorgegebene Kraft auf die Unterseite 6 überschritten wird. Ebenso ist es denkbar, die Laserlichtstrahler 4 selektiv zu aktivieren, indem der jeweilige Laserlichtstrahler 4 beim Überschreiten einer vorgegebenen Kraft auf den zugehörigen Emissionsabschnitt 7 aktiviert wird. Zur kraftabhängigen Aktivierung der Laserlichtstrahler 4 kann das Laserschweißgerät 1 zumindest einen nicht gezeigten Drucksensor aufweisen, mit der die wirkende Kraft ermittelt werden kann.In the embodiments shown, the laser light emitters 4 are activated when a predetermined force acting on the printing plate 2 is exceeded and thus is force-dependent. In this case, all of the laser light emitters 4 can be activated when a predetermined force on the
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDED 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 documents listed by the applicant was 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 accepts no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 11 2006 000 858 T5 [0002]DE 11 2006 000 858 T5 [0002]
- WO 2018/212947 A [0003]WO 2018/212947 A [0003]
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DE 10 2011 055 203 A1 [0003]
DE 10 2011 055 203 A1 [0003]
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102024002568.5A DE102024002568A1 (en) | 2024-08-08 | 2024-08-08 | Laser welding device for welding plastic components and method for welding plastic components |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102024002568.5A DE102024002568A1 (en) | 2024-08-08 | 2024-08-08 | Laser welding device for welding plastic components and method for welding plastic components |
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| Publication Number | Publication Date |
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| DE102024002568A1 true DE102024002568A1 (en) | 2024-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| DE102024002568.5A Withdrawn DE102024002568A1 (en) | 2024-08-08 | 2024-08-08 | Laser welding device for welding plastic components and method for welding plastic components |
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| DE (1) | DE102024002568A1 (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19948880A1 (en) * | 1999-10-08 | 2001-04-12 | Smb Schwede Maschb Gmbh | Welding head for a strapping machine |
| DE112006000858T5 (en) | 2005-04-21 | 2008-01-31 | Hewlett-Packard Development Company, L.P., Houston | Laser Welding System |
| DE102011055203A1 (en) | 2011-11-10 | 2013-05-16 | Jenoptik Automatisierungstechnik Gmbh | Device for connecting two workpiece parts via a weld by means of transmission welding |
| DE102013007205A1 (en) * | 2013-04-25 | 2014-03-20 | Daimler Ag | Joining first component with second component, comprises welding the first- and the second components using a welding filler material arranged as a film between the first- and second components, and at least one energy beam |
| DE102014018934A1 (en) * | 2014-12-22 | 2016-06-23 | Airbus Defence and Space GmbH | Apparatus for heating a composite with temperature-dependent processing properties and related processes |
| WO2018212947A1 (en) | 2017-05-17 | 2018-11-22 | Branson Ultrasonics Corporation | Simultaneous laser welding using two-micron laser light |
-
2024
- 2024-08-08 DE DE102024002568.5A patent/DE102024002568A1/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19948880A1 (en) * | 1999-10-08 | 2001-04-12 | Smb Schwede Maschb Gmbh | Welding head for a strapping machine |
| DE112006000858T5 (en) | 2005-04-21 | 2008-01-31 | Hewlett-Packard Development Company, L.P., Houston | Laser Welding System |
| DE102011055203A1 (en) | 2011-11-10 | 2013-05-16 | Jenoptik Automatisierungstechnik Gmbh | Device for connecting two workpiece parts via a weld by means of transmission welding |
| DE102013007205A1 (en) * | 2013-04-25 | 2014-03-20 | Daimler Ag | Joining first component with second component, comprises welding the first- and the second components using a welding filler material arranged as a film between the first- and second components, and at least one energy beam |
| DE102014018934A1 (en) * | 2014-12-22 | 2016-06-23 | Airbus Defence and Space GmbH | Apparatus for heating a composite with temperature-dependent processing properties and related processes |
| WO2018212947A1 (en) | 2017-05-17 | 2018-11-22 | Branson Ultrasonics Corporation | Simultaneous laser welding using two-micron laser light |
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