DE102018117734B3 - Component holder for the laser-beam plastic welding and associated laser welding device - Google Patents
Component holder for the laser-beam plastic welding and associated laser welding device Download PDFInfo
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- DE102018117734B3 DE102018117734B3 DE102018117734.8A DE102018117734A DE102018117734B3 DE 102018117734 B3 DE102018117734 B3 DE 102018117734B3 DE 102018117734 A DE102018117734 A DE 102018117734A DE 102018117734 B3 DE102018117734 B3 DE 102018117734B3
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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
- B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
- B29C66/812—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
- B29C66/8126—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps characterised by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
- B29C66/81266—Optical properties, e.g. transparency, reflectivity
- B29C66/81267—Transparent to electromagnetic radiation, e.g. to visible light
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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
- B29C65/1603—Laser beams characterised by the type of electromagnetic radiation
- B29C65/1612—Infrared [IR] radiation, e.g. by infrared lasers
- B29C65/1616—Near infrared radiation [NIR], e.g. by YAG lasers
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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
- B29C65/1654—Laser beams characterised by the way of heating the interface scanning at least one of the parts to be joined
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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
- B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
- B29C65/7841—Holding or clamping means for handling purposes
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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
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
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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
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
- B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
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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
- B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
- B29C66/812—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
- B29C66/8122—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps characterised by the composition of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
-
- 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
- B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
- B29C66/812—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
- B29C66/8126—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps characterised by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
- B29C66/81266—Optical properties, e.g. transparency, reflectivity
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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
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/349—Cooling the welding zone on the welding spot
- B29C66/3494—Cooling the welding zone on the welding spot while keeping the welding zone under pressure
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Optics & Photonics (AREA)
- Electromagnetism (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Laser Beam Processing (AREA)
Abstract
Bauteilaufnahme (1, 18) für das Laserstrahl-Kunststoffschweißen, umfassend: einen Werkstückträger (2, 19) mit einer ersten Auflage (6) für wenigstens ein zu verschweißendes Bauteil (8), eine aus einem transparenten Material hergestellte, die Kontur einer herzustellenden Schweißnaht des zu verschweißenden Bauteils (8) abdeckende, zweite verspannbare Auflage (11), wobei die Bauteilaufnahme (1, 18) einen Laserstrahlung streuenden und/oder absorbierenden Abschnitt (20) aufweist, der in Strahlrichtung hinter der ersten, aus einem transparenten Material hergestellten Auflage (6) angeordnet ist. Daneben betrifft die Erfindung eine zugehörige Laserschweißvorrichtung (17).A component holder (1, 18) for laser-beam plastic welding, comprising: a workpiece carrier (2, 19) with a first support (6) for at least one component to be welded (8), one made of a transparent material, the contour of a weld to be produced the second component to be welded (11) covering the component (8) to be welded, wherein the component holder (1, 18) has a laser radiation scattering and / or absorbing portion (20) behind the first support made of a transparent material in the beam direction (6) is arranged. In addition, the invention relates to an associated laser welding device (17).
Description
Die Erfindung betrifft eine Bauteilaufnahme für das Laserstrahl-Kunststoffschwei-ßen, umfassend einen Werkstückträger mit einer ersten Auflage für wenigstens ein zu verschweißendes Bauteil und eine aus einem transparenten Material hergestellte, die Kontur einer herzustellenden Schweißnaht des zu verschweißenden Bauteils abdeckende zweite verspannbare Auflage, mit den Merkmalen des Oberbegriffs des Anspruchs 1.The invention relates to a component holder for laser-plastic welding, comprising a workpiece carrier having a first support for at least one component to be welded and a made of a transparent material, the contour of a weld to be produced of the component to be welded covering the second bracing support, with the Features of the preamble of
Die
Eine Licht absorbierende Harzzusammensetzung zum Laserschweißen wird in der
Die
Eine ähnliche Bauteilaufnahme ist aus der
Das dort beschriebene Schweißverfahren wird als „2µm-Schweißverfahren“ bezeichnet. Bei diesem Kunststoffschweißverfahren macht man sich unterschiedliche Absorptionswerte verschiedener Kunststoffe für unterschiedliche Laser-Wellenlängen zu Nutze. Wellenlängen zwischen 1.700 bis 2.000 nm bewirken eine ausgewogene Absorptionsrate, sodass eine zuverlässige Führung des Schweißprozesses möglich ist. Ein Laserstrahl mit einer Wellenlänge des genannten Bereichs bringt Wärme in das gesamte durchstrahlte Bauteil ein. Durch eine präzise Fokussierung in die Schweißebene schmelzen die Bauteile dort lokal auf und gehen bei der anschließenden Abkühlung unter Druck eine sichere Verbindung ein, ohne dass dafür Zusatzstoffe erforderlich sind. Die Laserstrahlung wird teilweise absorbiert und teilweise reflektiert.The welding process described there is referred to as "2μm welding process". This plastic welding process makes use of different absorption values of different plastics for different laser wavelengths. Wavelengths between 1,700 and 2,000 nm provide a well-balanced absorption rate, enabling reliable guidance of the welding process. A laser beam with a wavelength of said range brings heat into the entire irradiated component. By precisely focusing in the welding plane, the components locally melt there and enter into a secure connection during the subsequent cooling under pressure, without the need for additives. The laser radiation is partially absorbed and partially reflected.
Ein wesentlicher Einflussfaktor für die Erzeugung einer qualitativ hochwertigen Schweißverbindung ist die eingesetzte Spanntechnik. Durch eine Spannvorrichtung werden die beiden miteinander zu verschweißenden Bauteile positioniert und es wird ein möglichst gleichmäßiger Fügedruck entlang der Schweißnaht eingeleitet.An essential influencing factor for the production of a high-quality welded joint is the clamping technology used. By a clamping device, the two components to be welded together to be welded and it is introduced as uniform as possible joining pressure along the weld.
Bei dem erwähnten „2µm-Schweißverfahren“ ist der hohe Anteil an Laserenergie, der das Bauteil ungenutzt durchdringt und an der Austrittsseite vorliegt, problematisch. In Abhängigkeit der eingesetzten Spanntechnik und des Werkstoffs, aus dem die Spanntechnik hergestellt ist, wird die ungenutzte Laserstrahlung absorbiert oder reflektiert. Bei der Vorrichtung aus der zuvor erwähnten
Allerdings kann sich durch eine hohe „Restenergie“ die Spanntechnik derart erwärmen, dass eine zusätzliche Kühlung erforderlich ist. Darüber hinaus kann rückreflektierte Strahlung zu einem ungewollten weiteren Energieeintrag in die Schweißzone führen. Unter ungünstigen Voraussetzungen kann es dadurch zu Blasenbildung oder zu Verbrennungen der zu verschweißenden Bauteile kommen.However, due to high "residual energy", the clamping technology can heat up in such a way that additional cooling is required. In addition, back-reflected radiation can lead to an unwanted further energy input into the weld zone. Under unfavorable conditions, this can lead to blistering or burns of the components to be welded.
Der Erfindung liegt daher die Aufgabe zugrunde, eine Bauteilaufnahme für das Laserstrahl-Kunststoffschweißen anzugeben, die eine unerwünschte Erwärmung der Schweißzone durch Rückreflektionen verhindert.The invention is therefore based on the object to provide a component holder for the laser-plastic welding, which prevents unwanted heating of the weld zone by back reflections.
Zur Lösung dieser Aufgabe ist eine Bauteilaufnahme mit den Merkmalen des Anspruchs 1 vorgesehen.To solve this problem, a component holder is provided with the features of
Die Erfindung beruht auf der Erkenntnis, dass eine unerwünschte Rückreflektion der das Bauteil durchdringenden und somit ungenutzten Laserstrahlung vermieden werden kann, indem an der Bauteilaufnahme ein Abschnitt vorgesehen ist, der mit einem Laserstrahlung streuenden und/oder absorbierenden Material gefüllt und als in dem Werkstückträger ausgebildete Tasche ausgebildet ist. Das Material bewirkt eine Absorption oder Streuung der Laserstrahlung, wodurch eine unerwünschte Rückreflektion und ein unerwünschter, eine Erwärmung bewirkender Energieeintrag vermieden wird.The invention is based on the finding that an undesired back reflection of the component penetrating and thus unused laser radiation can be avoided by a portion is provided on the component receiving, filled with a laser radiation scattering and / or absorbing material and as formed in the workpiece carrier bag is trained. The material causes an absorption or scattering of the laser radiation, whereby an undesirable back reflection and an undesirable, causing a heating energy input is avoided.
Die hier verwendeten Begriffe „transparent“, „streuend“ und „absorbierend“ sind so zu verstehen, dass sich diese Eigenschaft auf die verwendete Wellenlänge der Laserstrahlung bezieht.The terms "transparent", "scattering" and "absorbing" as used herein are to be understood as referring to the wavelength of the laser radiation used.
Bei der erfindungsgemäßen Bauteilaufnahme kann es vorgesehen sein, dass das Laserstrahlung streuende und/oder absorbierende Material ein granulares Material oder ein Fasermaterial ist. Das granulare Material besitzt eine Vielzahl kleiner reflektierender Oberflächenabschnitte, wodurch die gewünschte Streuwirkung erzielt wird. Dieselbe Wirkung wird durch ein Fasermaterial erzielt. Als Beispiel für ein Fasermaterial können Glasfasern verwendet werden.In the case of the component mounting according to the invention, provision may be made for the material which diffuses and / or absorbs the laser radiation to be a granular material or a fiber material. The granular material has a multiplicity of small reflective surface portions which provide the desired scattering effect. The same effect is achieved by a fiber material. As an example of a fiber material, glass fibers can be used.
Bei der erfindungsgemäßen Bauteilaufnahme wird es besonders bevorzugt, dass das Laserstrahlung streuende und/oder absorbierende Material Sand, Quarzsand, Fasern oder Glasfasern umfasst. Diese Materialien sind besonders gut zur Absorption von Laserstrahlung geeignet. Durch die Vielzahl unterschiedlich ausgerichteter Oberflächen wird Laserstrahlung effizient gestreut.In the component mounting according to the invention, it is particularly preferred that the laser radiation scattering and / or absorbing material comprises sand, quartz sand, fibers or glass fibers. These materials are particularly well suited for absorbing laser radiation. Due to the large number of differently aligned surfaces, laser radiation is efficiently scattered.
In weiterer Ausgestaltung der Erfindung kann es vorgesehen sein, dass die erste und/oder die zweite Auflage der erfindungsgemäßen Bauteilaufnahme als Glasplatte(n) ausgebildet ist bzw. sind. Vorzugsweise ist die erste Auflage eine untere Auflage, auf der ein zu verschweißendes Bauteil positioniert werden kann. Die zweite Auflage ist vorzugsweise eine obere Auflage, die das zu verschweißende Bauteil abdeckt und zum Verspannen des Bauteils beim Schweißvorgang dient. In a further embodiment of the invention, it may be provided that the first and / or the second edition of the component receptacle according to the invention is or are designed as a glass plate (s). Preferably, the first edition is a lower edition, on which a component to be welded can be positioned. The second edition is preferably an upper edition, which covers the component to be welded and serves to clamp the component during the welding process.
Eine Ausgestaltung der erfindungsgemäßen Bauteilaufnahme sieht vor, dass die erste (untere) Auflage oberflächenbündig auf einer Stufe des Werkstückträgers aufliegt. Dadurch ergibt sich eine stufenlose Auflagefläche, die durch eine Oberseite des Werkstückträgers und die erste (untere) Auflage gebildet wird. Auf dieser Auflagefläche kann das zu verschweißende Bauteil, gegebenenfalls gemeinsam mit weiteren für den Schweißprozess erforderlichen Komponenten wie ein oder mehrere Positionierelemente, aufgelegt werden.An embodiment of the component mounting according to the invention provides that the first (lower) support rests flush with the surface on a step of the workpiece carrier. This results in a continuous support surface, which is formed by an upper side of the workpiece carrier and the first (lower) support. On this bearing surface, the component to be welded, optionally together with other required for the welding process components such as one or more positioning elements, can be placed.
In diesem Zusammenhang wird es bevorzugt, dass zwischen der ersten (unteren) und der zweiten (oberen) Auflage Positionierelemente angeordnet sind, die an eine oder mehrere Seitenflächen des zu verschweißenden Bauteils anlegbar sind. Die Positionierelemente ermöglichen eine präzise Ausrichtung des zu verschweißenden Bauteils auf der ersten Auflage.In this context, it is preferred that positioning elements are arranged between the first (lower) and the second (upper) support, which can be applied to one or more side surfaces of the component to be welded. The positioning elements allow a precise alignment of the component to be welded on the first edition.
Es liegt auch im Rahmen der Erfindung, dass an der Unterseite des Werkstückträgers Federelemente angeordnet sind. Die Federelemente dienen zum Ausgleichen von Toleranzen der Parallelität.It is also within the scope of the invention that spring elements are arranged on the underside of the workpiece carrier. The spring elements are used to compensate for tolerances of parallelism.
Erfindungsgemäß ist vorgesehen, dass der Laserstrahlung streuende und/oder absorbierende Abschnitt als in dem Werkstückträger ausgebildete Tasche ausgebildet ist. Die Tasche kann mit dem Laserstrahlung streuenden und/oder absorbierende Material gefüllt sein.According to the invention it is provided that the laser radiation scattering and / or absorbing portion is formed as formed in the workpiece carrier bag. The bag may be filled with the laser radiation scattering and / or absorbing material.
Gemäß einer Ausgestaltung der Erfindung kann in Strahlrichtung hinter der ersten Auflage ein Spiegel zum Umlenken von Laserstrahlung auf den streuenden und/oder absorbierenden Abschnitt, in dem sich das Laserstrahlung streuende und/oder absorbierende Material befindet, angeordnet sein. Der Laserstrahlung streuende und/oder absorbierende Abschnitt kann sich somit z. B. neben der ersten Auflage befinden.According to one embodiment of the invention, a mirror for deflecting laser radiation onto the scattering and / or absorbing section, in which the laser radiation scattering and / or absorbing material is located, can be arranged in the beam direction behind the first support. The laser radiation scattering and / or absorbing portion can thus z. B. next to the first edition.
Daneben betrifft die Erfindung eine Laserschweißvorrichtung für das Laserstrahl-Kunststoffschweißen, umfassend wenigstens eine Bauteilaufnahme nach einem der vorangehenden Ansprüche, eine Laserstrahlquelle und eine Steuerungseinrichtung zum Bewegen eines durch die Laserstrahlquelle emittierten Laserfokus.In addition, the invention relates to a laser welding device for laser-plastic welding, comprising at least one component holder according to one of the preceding claims, a laser beam source and a control device for moving a laser focus emitted by the laser beam source.
Die Erfindung wird nachfolgend anhand von Ausführungsbeispielen unter Bezugnahme auf die Zeichnungen erläutert. Die Zeichnungen sind schematische Darstellungen und zeigen:
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1 eine Draufsicht der wesentlichen Komponenten einer erfindungsgemäßen Bauteilaufnahme; -
2 eine geschnittene Seitenansicht der Bauteilaufnahme von1 entlang der LinieII - II geschnitten; und -
3 ein zweites Ausführungsbeispiel einer erfindungsgemäßen Bauteilaufnahme in einer geschnittenen Ansicht.
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1 a plan view of the essential components of a component receiving device according to the invention; -
2 a sectional side view of the component holder of1 along the lineII - II cut; and -
3 A second embodiment of a component receiving the invention in a sectional view.
Die in den
In den
Das Bauteil
Der Werkstückträger
Die in den
Mittels der Steuerungseinrichtung
In dem dargestellten Ausführungsbeispiel besitzt die Laserstrahlquelle
Die Laserstrahlung
Bei einem abgewandelten Ausführungsbeispiel ist anstelle einer Tasche oder eines beschichteten Abschnitts ein Spiegel vorgesehen, der in Strahlrichtung hinter der ersten Auflage angeordnet ist. Der Spiegel lenkt Laserstrahlung auf einen Laserstrahlung streuenden und/oder absorbierenden Abschnitt um.In a modified embodiment, instead of a pocket or a coated portion, a mirror is provided, which is arranged in the beam direction behind the first support. The mirror deflects laser radiation to a laser radiation scattering and / or absorbing section.
Die beschriebenen Bauteilaufnahmen
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- Bauteilaufnahmecomponent pick
- 22
- WerkstückträgerWorkpiece carrier
- 33
- Taschebag
- 44
- Quarzsandquartz sand
- 55
- Stufestep
- 66
- erste Auflagefirst edition
- 77
- Oberseitetop
- 88th
- Bauteilcomponent
- 99
- Positionierelementpositioning
- 1010
- Positionierelementpositioning
- 1111
- zweite Auflagesecond edition
- 1212
- Federelementspring element
- 1313
- Maschinentischmachine table
- 1414
- Laserstrahlquellelaser beam source
- 1515
- Steuerungseinrichtungcontrol device
- 1616
- Laserstrahllaser beam
- 1717
- LaserschweißvorrichtungLaser welding device
- 1818
- Bauteilaufnahmecomponent pick
- 1919
- WerkstückträgerWorkpiece carrier
- 2020
- Abschnittsection
Claims (9)
Priority Applications (1)
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DE102018117734.8A DE102018117734B3 (en) | 2018-07-23 | 2018-07-23 | Component holder for the laser-beam plastic welding and associated laser welding device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE102018117734.8A DE102018117734B3 (en) | 2018-07-23 | 2018-07-23 | Component holder for the laser-beam plastic welding and associated laser welding device |
Publications (1)
Publication Number | Publication Date |
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DE102018117734B3 true DE102018117734B3 (en) | 2019-11-28 |
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DE102018117734.8A Active DE102018117734B3 (en) | 2018-07-23 | 2018-07-23 | Component holder for the laser-beam plastic welding and associated laser welding device |
Country Status (1)
Country | Link |
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DE (1) | DE102018117734B3 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1098751B1 (en) * | 1998-07-17 | 2003-01-02 | Lisa Laser Products OHG Fuhrberg & Teichmann | Method and device for welding thermoplastic synthetic materials using laser light |
US20080182930A1 (en) * | 2007-01-11 | 2008-07-31 | Sumitomo Metal Mining Co., Ltd. | Light-absorbing resin composition for use in laser welding, light-absorbing resin molded article, and method for manufacturing light-absorbing resin molded article |
DE102013217647A1 (en) * | 2013-09-04 | 2015-03-05 | Lpkf Laser & Electronics Ag | Beam-supported joining machine, in particular laser penetrating welding device |
DE102016216844A1 (en) * | 2016-09-06 | 2018-03-08 | Evosys Laser GmbH | Method for laser-plastic welding and device |
-
2018
- 2018-07-23 DE DE102018117734.8A patent/DE102018117734B3/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1098751B1 (en) * | 1998-07-17 | 2003-01-02 | Lisa Laser Products OHG Fuhrberg & Teichmann | Method and device for welding thermoplastic synthetic materials using laser light |
US20080182930A1 (en) * | 2007-01-11 | 2008-07-31 | Sumitomo Metal Mining Co., Ltd. | Light-absorbing resin composition for use in laser welding, light-absorbing resin molded article, and method for manufacturing light-absorbing resin molded article |
DE102013217647A1 (en) * | 2013-09-04 | 2015-03-05 | Lpkf Laser & Electronics Ag | Beam-supported joining machine, in particular laser penetrating welding device |
DE102016216844A1 (en) * | 2016-09-06 | 2018-03-08 | Evosys Laser GmbH | Method for laser-plastic welding and device |
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