EP2308659B1 - Device and method for aligning workpieces - Google Patents

Device and method for aligning workpieces Download PDF

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Publication number
EP2308659B1
EP2308659B1 EP10177849.6A EP10177849A EP2308659B1 EP 2308659 B1 EP2308659 B1 EP 2308659B1 EP 10177849 A EP10177849 A EP 10177849A EP 2308659 B1 EP2308659 B1 EP 2308659B1
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EP
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Prior art keywords
workpiece
workpieces
processing
conveying direction
alignment
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EP10177849.6A
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German (de)
French (fr)
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EP2308659A1 (en
Inventor
Andreas Lorenz
Rolf Höhn
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Homag GmbH
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Homag GmbH
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B31/00—Arrangements for conveying, loading, turning, adjusting, or discharging the log or timber, specially designed for saw mills or sawing machines
    • B27B31/06—Adjusting equipment, e.g. using optical projection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27F—DOVETAILED WORK; TENONS; SLOTTING MACHINES FOR WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES
    • B27F1/00—Dovetailed work; Tenons; Making tongues or grooves; Groove- and- tongue jointed work; Finger- joints
    • B27F1/02—Making tongues or grooves, of indefinite length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
    • B27M1/00—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching
    • B27M1/08—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching by multi-step processes

Definitions

  • the present invention relates to a method for aligning workpieces which are preferably at least partially made of wood, wood-based materials, plastic or the like.
  • plate-shaped materials are partially provided with structures, such as, for example, graphic designs or three-dimensional surface structures, as is known, for example, in the case of plate-shaped floor coverings.
  • structures such as, for example, graphic designs or three-dimensional surface structures, as is known, for example, in the case of plate-shaped floor coverings.
  • the problem arises that the dimensions of the panels change depending on the moisture content or other influences such as temperature. Typically, the dimensions decrease as the moisture content decreases.
  • the alignment device has at least one alignment element which can be moved at least within limits in the direction of passage. In this way, the workpieces to be aligned can be conveyed further in the direction of passage even during the detection and alignment process.
  • the approaches mentioned do not solve the problem that occurs when processing the edges of workpieces with structures to the effect that these are not in a desired position after the processing of the edges.
  • the approaches mentioned are not able to take length fluctuations of the decoration or the structure in the individual workpiece into account during processing.
  • the WO_99 / 61212_A1 describes a method of dividing a plate-like article comprising patterns, such as protrusions or recesses, into smaller sections.
  • the EP 2 030 725 A1 known which relates to a device and a method for aligning workpieces.
  • the known device comprises a conveyor device, an optical detection device for detecting a position of the workpieces conveyed on the conveyor device and an alignment device for shifting and aligning the workpieces conveyed on the conveyor device on the basis of a detection result of the detection device.
  • Another document is the GB 2 124 144 A known, which shows a method for cutting wooden workpieces and a corresponding device.
  • a measuring device is provided upstream of the cutting means and comprises a right-angled measuring ramp with a plurality of photodiodes.
  • a device for processing workpieces which is preferably at least in sections made of wood, wood-based materials, plastic or the like, are used, the device having a conveying device for conveying the workpieces in a conveying direction.
  • This conveyor device conveys the workpieces preferably in a straight line or along curved paths.
  • the workpieces are arranged sufficiently slip-proof on the conveyor device, for example fixed by means of negative pressure on their underside, printing on their top or clamping devices, so that they can be transported in a slip-proof manner and processed later.
  • an electronic, optical detection device for detecting a position of a three-dimensional structure of the workpieces conveyed on the conveying device.
  • three-dimensional structures are often used as designs for e.g. plate-shaped flooring materials.
  • a bevel or rounding is pressed into the raw panel in an upstream surface press in such a way that the finished workpieces form a joint (e.g. symmetrical or asymmetrical) when they are put together.
  • Cameras with a CCD or CMOS chip are particularly preferably used as electronic, optical detection devices.
  • 3D scanners are also preferably used for three-dimensional structures.
  • the structure that is detected is arranged between a first narrow workpiece surface and a second narrow workpiece surface, which laterally delimit the workpiece in the conveying direction. Accordingly, the structure that is later to assume a certain target position on the prefabricated component is recorded directly. Merely recording the workpiece edges is not sufficient, since the position of the structure on the component can be different can.
  • the device according to the invention thus directly detects the position of the structure, initially independently of the actual workpiece dimensions, which can fluctuate.
  • a first alignment device for moving and aligning the workpieces conveyed on the conveyor device on the basis of a detection result of the detection device, the first alignment device having a first alignment element that can be moved transversely to the conveying direction.
  • the alignment device can thus move and align the workpiece as a function of the position of the structure on the workpiece determined by the detection device.
  • the direction indicated transversely to the conveying direction means any direction that does not correspond to the conveying direction.
  • the alignment device can be designed in different ways within the scope of the invention and, for example, also work without contact and, if necessary, using gravity.
  • the alignment device preferably acts in a pushing or pulling manner on the workpiece.
  • the workpiece can also be gripped by the alignment device.
  • the device for processing workpieces also has a processing device for processing the first and / or second narrow workpiece surface with at least one first processing means connected downstream of the first alignment element.
  • the processing device is particularly preferably a double-end profiler, which not only changes the dimensions of the workpiece, but also gives the workpiece narrow surfaces a profile or a Format processing unit.
  • the processing means particularly preferably has a milling cutter and preferably a saw blade or a grinding means.
  • the device has at least one processing device for processing the first and / or second narrow workpiece surface, which has at least one first processing means that can be moved transversely to the conveying direction on the basis of a detection result of the detection device.
  • the relative displacement of the processing means to the structure of the workpiece is thus realized by a displacement of the processing means transversely to the conveying direction.
  • an edge application device is arranged downstream of the processing device.
  • the edge attachment device is used to attach an edge to at least one of the narrow workpiece surfaces.
  • the edge preferably consists of a flexible band.
  • a wide variety of technologies that are familiar to a person skilled in the art can be used for the edge application device, such as, for example, a joining technology using a laser or another suitable energy source.
  • the edge attachment device preferably has a cutting unit in order to be able to automatically remove edge material protruding over the narrow workpiece surfaces.
  • the processing device has at least one second processing means.
  • the first processing means preferably acts on the first narrow workpiece surface and the second processing means on the second workpiece narrow surface. This means that both workpiece surfaces can be machined at the same time.
  • Different processing means can also be used as the first and second processing means, which opens up additional possibilities for processing.
  • first processing means and second processing means are provided.
  • at least two of the first processing means and / or two of the second processing means can be moved in a controlled manner transversely to the conveying direction, independently of one another. This enables the individual processing means to be used independently in parallel.
  • Processing means are preferably also designed redundantly so that they can be exchanged while the processing device is running without the processing device having to be stopped.
  • Fig. 1 shows a schematic representation of a first exemplary embodiment of a device 1 for processing workpieces 2.
  • a conveyor device 4 for conveying the workpieces 2 is shown running vertically in this figure.
  • Two workpieces 2, shown as a rectangle, are arranged on the conveyor device 4.
  • the workpieces have an optically recognizable graphic structure 5, shown as a rectangle, on their surface.
  • the conveying device 4 transports the workpieces in the direction of the arrow F.
  • the workpieces 2 have a first narrow workpiece surface 6 and a second narrow workpiece surface 7, seen in the transport direction F, which limit the workpiece 2 laterally in the conveying direction F.
  • An infeed ruler 8 is shown at the bottom left in the graphic. It has the task of pre-aligning the workpiece 2 on its first narrow workpiece surface 6 in a direction transverse to the conveying direction F.
  • a processing device 10 is arranged along the conveying device 4. In this exemplary embodiment, the processing device has three first processing means 11 and three second processing means 12, which are shown here as circles.
  • a detection device 30 for detecting a position of the optical structure 5 of the workpieces 2 conveyed on the conveyor device 4 is shown at the bottom right in the picture.
  • the workpieces 2 are moved in the transport direction F by means of the conveyor device 4. In doing so, they pass the detection device 30, which detects the position of the optical structure 5 of the workpieces 2 conveyed on the conveyor device 4. The workpiece 2 is then conveyed along the machining device 10. It is processed by the first processing means 11 and the second processing means 12.
  • the first processing means 11 can be moved transversely to the conveying direction F on the basis of the detection result of the detection device 30.
  • the position of the structure 5 on the workpiece 2 is determined by the detection device 30 and offset in a control device. With the result of this established actual position of the structure 5 and a specified target geometry, a control of a process of the first processing means 11 transversely to the conveying direction F is carried out. As a result, in this exemplary embodiment, the second narrow workpiece surface 7 can be machined as a function of the position of the structure 5. This makes it possible to obtain a workpiece 2 through the machining that has the structure 5 at a desired distance from the machined second narrow workpiece surface 7.
  • Fig. 2 shows a schematic representation of a second exemplary embodiment of a device 1 for processing workpieces 2.
  • the workpiece 2 is conveyed by the conveying device 4 running from bottom to top in the image.
  • That Workpiece 2 again has a first narrow workpiece surface 6 and a second narrow workpiece surface 7.
  • An optical detection device is provided in order to detect a position of an optical structure 5 of the workpieces 2 conveyed on the conveyor device 4.
  • the structure 5 is arranged between a first narrow workpiece surface 6 and a second narrow workpiece surface 7, which laterally delimit the workpiece 2 in the conveying direction F.
  • the workpiece 2 is pre-adjusted on the conveyor 4 transversely to the conveying direction F by means of an infeed ruler 8.
  • the first narrow workpiece surface 6 is processed by second processing means 12, which are shown here as circles, before the workpiece 2 is fed to the detection device 30.
  • a first alignment device 20 is provided for moving and aligning the workpieces 2 conveyed on the conveyor device 4 on the basis of a detection result of the detection device 30.
  • the first alignment device 20 has a first alignment element 21 which can be moved transversely to the conveying direction F and acts in a pushing manner on the first narrow workpiece surface 6 and thereby displaces the workpiece 2 transversely to the conveying direction F.
  • the first alignment device 20 also has a second alignment element 22, which can be moved transversely to the conveying direction F and acts in a sliding manner on the second narrow workpiece surface 7, thereby displacing the workpiece 2 transversely to the conveying direction F.
  • the workpiece can be positioned on the conveyor 4 by the alignment elements 21 and 22 of this embodiment.
  • the alignment elements 21 and 22 act advantageously one after the other on the workpiece. Instead of a pushing action, other mechanisms can also be used, such as gripping.
  • First processing means 11 of the processing device 10 are arranged downstream of the first alignment device 20.
  • the first processing means 11 act on the second workpiece surface 7.
  • a first alignment element 25 and a second alignment element 26 of a second alignment device 24 are arranged between individual first processing means 11.
  • the second alignment device 24 is provided for moving and aligning the workpieces 2 conveyed on the conveyor device 4 on the basis of a detection result that is provided by a further detection device and / or the detection device 30, not shown in detail.
  • the first alignment element 25 acts in a pushing manner on the first narrow workpiece surface 6, and the second alignment element 26 then acts in a pushing manner on the second narrow workpiece surface 7, as a result of which the workpiece 2 can be pushed back and forth transversely to the conveying direction F.
  • the structure 5 can be positioned between individual processing steps, which enables an even more precise processing result.
  • an edge attachment device 27 is arranged downstream of the processing means 11, 12 and glues the edges to the narrow workpiece surfaces 6, 7.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Forests & Forestry (AREA)
  • Attitude Control For Articles On Conveyors (AREA)

Description

Technisches GebietTechnical area

Die vorliegende Erfindung bezieht sich auf ein Verfahren zum Ausrichten von Werkstücken, die bevorzugt zumindest abschnittsweise aus Holz, Holzwerkstoffen, Kunststoff oder dergleichen bestehen.The present invention relates to a method for aligning workpieces which are preferably at least partially made of wood, wood-based materials, plastic or the like.

Stand der TechnikState of the art

Die Bearbeitung von Werkstücken wird in zunehmenden Maße automatisiert. Hierbei ist es verbreitet, Werkstücke mittels Fördereinrichtungen weitgehend automatisiert Bearbeitungseinrichtungen zuzuführen. Im Bereich der Verarbeitung von plattenförmigen Holz-, Kunststoff-, und Verbundwerkstücken werden die Werkstücke mit einer relativ hohen Geschwindigkeit mittels einer Fördereinrichtung beispielsweise einer Kantenbearbeitungseinrichtung zugeführt.The processing of workpieces is becoming increasingly automated. It is widespread here to feed workpieces largely automatically to processing devices by means of conveying devices. In the area of processing panel-shaped wood, plastic and composite workpieces, the workpieces are fed at a relatively high speed by means of a conveyor device, for example to an edge processing device.

Ferner sind solche plattenförmigen Werkstoffe teilweise mit Strukturen, wie z.B. grafischen Gestaltungen oder dreidimensionalen Oberflächenstrukturen versehen, wie dies z.B. bei plattenförmigen Fußbodenbelägen bekannt ist. Gerade bei plattenförmigen Werkstücken, die teilweise aus Holz oder holzähnlichen Materialien bestehen, stellt sich hierbei das Problem, dass sich die Platten in Abhängigkeit des Feuchtigkeitsgehaltes oder sonstiger Einflüsse wie beispielsweise der Temperatur in ihren Abmessungen verändern. In der Regel verringern sich die Abmessungen, wenn sich der Feuchtigkeitsgehalt verringert. Dadurch tritt das Problem auf, dass die Werkstücke die Strukturen nicht immer an der gleichen Position aufweisen, wenn sie roh zugesägt oder gepresst einer Format- oder Kantenbearbeitung zugeführt werden. Das heißt der Abstand der Struktur oder des Dekors zu den Werkstückrändern ist nicht immer gleich.Furthermore, such plate-shaped materials are partially provided with structures, such as, for example, graphic designs or three-dimensional surface structures, as is known, for example, in the case of plate-shaped floor coverings. Particularly in the case of panel-shaped workpieces that are partly made of wood or wood-like materials, the problem arises that the dimensions of the panels change depending on the moisture content or other influences such as temperature. Typically, the dimensions decrease as the moisture content decreases. As a result, the problem arises that the workpieces do not always adhere to the structures have the same position when they are raw sawn or pressed to a format or edge processing. This means that the distance between the structure or the decoration and the workpiece edges is not always the same.

Probleme treten bei der Bearbeitung dahingehend auf, dass die Strukturen auf der Fördereinrichtung ungenau positioniert sind und sich dadurch Fehler bei der nachfolgenden Bearbeitung, z.B. einer Kantenbearbeitung ergeben.Problems arise during processing to the effect that the structures are inaccurately positioned on the conveyor device and this results in errors in subsequent processing, e.g. edge processing.

Bekannt ist es, diesem Problem zu begegnen, indem eine Ausrichteinrichtung der Bearbeitung vorgeschaltet angeordnet ist, die die Werkstücke genau positioniert. Hierdurch soll sichergestellt werden, dass die Werkstücke in einer nachgeordneten Bearbeitungsstation, beispielsweise einer Durchlaufsäge oder einem Doppelendprofiler, mit hoher Präzision bearbeitet werden.It is known to counter this problem in that an alignment device is arranged upstream of the processing, which aligns the workpieces precisely. This is to ensure that the workpieces are processed with high precision in a downstream processing station, for example a through-feed saw or a double-end profiler.

Aus der EP 2 030 725 A1 ist eine Vorrichtung zum Ausrichten von Werkstücken auf einer Fördereinrichtung vor einer Bearbeitung bekannt. Diese Fördereinrichtung muss beim Erfassen und Ausrichten der Werkstücke nicht angehalten werden. Zu diesem Zweck weist die Ausrichteinrichtung mindestens ein Ausrichtelement auf, das in Durchlaufrichtung zumindest in Grenzen verfahrbar ist. Auf diese Weise können die auszurichtenden Werkstücke sogar während des Erfassungs- und Ausrichtvorganges weiter in Durchlaufrichtung gefördert werden.From the EP 2 030 725 A1 a device for aligning workpieces on a conveyor before machining is known. This conveying device does not have to be stopped when gripping and aligning the workpieces. For this purpose, the alignment device has at least one alignment element which can be moved at least within limits in the direction of passage. In this way, the workpieces to be aligned can be conveyed further in the direction of passage even during the detection and alignment process.

Die genannten Ansätze lösen das Problem nicht, das bei der Kantenbearbeitung von Werkstücken mit Strukturen dahingehend auftritt, dass sich diese nach der Kantenbearbeitung nicht an einer gewünschten Position befinden. Insbesondere sind die genannten Ansätze nicht in der Lage, Längenschwankungen des Dekos oder der Struktur im einzelnen Werkstück bei der Bearbeitung zu berücksichtigen.The approaches mentioned do not solve the problem that occurs when processing the edges of workpieces with structures to the effect that these are not in a desired position after the processing of the edges. In particular, the approaches mentioned are not able to take length fluctuations of the decoration or the structure in the individual workpiece into account during processing.

Die WO_99/61212_A1 beschreibt ein Verfahren zum Aufteilen eines plattenartigen Gegenstands, der Muster, wie Vorsprünge oder Ausnehmungen, umfasst, in kleinere Sektionen.the WO_99 / 61212_A1 describes a method of dividing a plate-like article comprising patterns, such as protrusions or recesses, into smaller sections.

Ferner ist die EP 2 030 725 A1 bekannt, die eine Vorrichtung und ein Verfahren zum Ausrichten von Werkstücken betrifft. Die bekannte Vorrichtung umfasst eine Fördereinrichtung, eine optische Erfassungseinrichtung zum Erfassen einer Position der auf der Fördereinrichtung geförderten Werkstücke und eine Ausrichteinrichtung zum Verschieben und Ausrichten der auf der Fördereinrichtung geförderten Werkstücke auf der Grundlage eines Erfassungsergebnisses der Erfassungseinrichtung.Furthermore, the EP 2 030 725 A1 known, which relates to a device and a method for aligning workpieces. The known device comprises a conveyor device, an optical detection device for detecting a position of the workpieces conveyed on the conveyor device and an alignment device for shifting and aligning the workpieces conveyed on the conveyor device on the basis of a detection result of the detection device.

Als weiteres Dokument ist die GB 2 124 144 A bekannt, die ein Verfahren zum Schneiden von Holzwerkstücken sowie eine entsprechende Vorrichtung zeigt. Eine Messvorrichtung ist stromaufwärts des Schneidemittels vorgesehen und umfasst eine rechtwinklige Messrampe mit einer Vielzahl von Photodioden.Another document is the GB 2 124 144 A known, which shows a method for cutting wooden workpieces and a corresponding device. A measuring device is provided upstream of the cutting means and comprises a right-angled measuring ramp with a plurality of photodiodes.

Darstellung der ErfindungPresentation of the invention

Es ist daher Aufgabe der vorliegenden Erfindung, ein Verfahren zum Ausrichten von Werkstücken, die bevorzugt zumindest abschnittsweise aus Holz, Holzwerkstoffen, Kunststoff oder dergleichen bestehen zur Verfügung zu stellen, das es ermöglicht, die Werkstücke so zu bearbeiten, dass die Struktur möglichst präzise auf dem bearbeiteten Werkstück positioniert ist.It is therefore the object of the present invention to provide a method for aligning workpieces, which are preferably at least partially made of wood, wood-based materials, plastic or the like, which makes it possible to process the workpieces so that the structure as precisely as possible on the machined workpiece is positioned.

Erfindungsgemäß wird diese Aufgabe durch ein Verfahren mit den Merkmalen einer der unabhängigen Ansprüche 1 und 2 gelöst. Besonders bevorzugte Ausführungsformen sind in den abhängigen Ansprüchen angegeben.According to the invention, this object is achieved by a method having the features of one of the independent claims 1 and 2. Particularly preferred embodiments are specified in the dependent claims.

Im Rahmen des Verfahrens kommt eine Vorrichtung zum Bearbeiten von Werkstücken, die bevorzugt zumindest abschnittsweise aus Holz, Holzwerkstoffen, Kunststoff oder dergleichen bestehen, zum Einsatz, wobei die Vorrichtung eine Fördereinrichtung zum Fördern der Werkstücke in einer Förderrichtung aufweist. Diese Fördereinrichtung befördert die Werkstücke bevorzugt geradlinig oder entlang kurvenförmiger Bahnen. Die Werkstücke werden ausreichend verrutschsicher auf der Fördereinrichtung angeordnet, z.B. mittels Unterdruck an ihrer Unterseite, Aufdruck auf ihre Oberseite oder Klemmeinrichtungen fixiert, so dass sie verrutschsicher transportiert und später bearbeitet werden können.In the context of the method there is a device for processing workpieces, which is preferably at least in sections made of wood, wood-based materials, plastic or the like, are used, the device having a conveying device for conveying the workpieces in a conveying direction. This conveyor device conveys the workpieces preferably in a straight line or along curved paths. The workpieces are arranged sufficiently slip-proof on the conveyor device, for example fixed by means of negative pressure on their underside, printing on their top or clamping devices, so that they can be transported in a slip-proof manner and processed later.

Ferner ist eine elektronische, optische Erfassungseinrichtung zum Erfassen einer Position einer dreidimensionalen Struktur der auf der Fördereinrichtung geförderten Werkstücke vorgesehen. Dreidimensionale Strukturen werden heute häufig als Ausgestaltungen z.B. von plattenförmigen Fußbodenwerkstoffen verwendet. Als dreidimensionale Struktur wird in einer vorgelagerten Oberflächenpresse eine Fase oder Rundung so in die Rohplatte gepresst, dass die fertig bearbeiteten Werkstücke eine Fuge (z. B. symmetrisch oder asymmetrisch) bilden, wenn man sie zusammenlegt.Furthermore, an electronic, optical detection device is provided for detecting a position of a three-dimensional structure of the workpieces conveyed on the conveying device. Today, three-dimensional structures are often used as designs for e.g. plate-shaped flooring materials. As a three-dimensional structure, a bevel or rounding is pressed into the raw panel in an upstream surface press in such a way that the finished workpieces form a joint (e.g. symmetrical or asymmetrical) when they are put together.

Als elektronische, optische Erfassungseinrichtungen kommen besonders bevorzugt Kameras mit CCD- oder CMOS-Chip zum Einsatz. Für dreidimensionale Strukturen werden auch bevorzugt 3D-Scanner eingesetzt.Cameras with a CCD or CMOS chip are particularly preferably used as electronic, optical detection devices. 3D scanners are also preferably used for three-dimensional structures.

Die Struktur, die erfasst wird, ist zwischen einer ersten Werkstückschmalfläche und einer zweiten Werkstückschmalfläche, die das Werkstück seitlich in der Förderrichtung begrenzen, angeordnet. Demnach wird die Struktur, die auf dem Fertigbauteil später eine bestimmte Sollposition einnehmen soll, direkt erfasst. Eine alleinige Erfassung lediglich der Werkstückränder genügt nicht, da die Position der Struktur auf dem Bauteil unterschiedlich sein kann. Durch die erfindungsgemäße Vorrichtung wird somit direkt die Position der Struktur zunächst unabhängig von den tatsächlichen Werkstückabmessungen, die schwanken können, erfasst.The structure that is detected is arranged between a first narrow workpiece surface and a second narrow workpiece surface, which laterally delimit the workpiece in the conveying direction. Accordingly, the structure that is later to assume a certain target position on the prefabricated component is recorded directly. Merely recording the workpiece edges is not sufficient, since the position of the structure on the component can be different can. The device according to the invention thus directly detects the position of the structure, initially independently of the actual workpiece dimensions, which can fluctuate.

Bei der genannten Vorrichtung ist eine erste Ausrichteinrichtung zum Verschieben und Ausrichten der auf der Fördereinrichtung geförderten Werkstücke auf Grundlage eines Erfassungsergebnisses der Erfassungseinrichtung vorgesehen, wobei die erste Ausrichteinrichtung ein erstes Ausrichtelement aufweist, das quer zur Förderrichtung verfahrbar ist. Die Ausrichteinrichtung kann somit das Werkstück in Abhängigkeit von der durch die Erfassungseinrichtung festgestellten Position der Struktur auf dem Werkstück verschieben und ausrichten. Die Richtungsangabe quer zur Förderrichtung meint hier jede Richtung, die nicht der Förderrichtung entspricht. Dadurch kann die Struktur auf dem Werkstück mit dem Werkstück für die nachfolgende Bearbeitung in eine gewünschte Position gebracht werden. Die Struktur auf dem Werkstück wird daher relativ zu einem nachfolgend einwirkenden Bearbeitungsmittel verlagert.In the aforementioned device, a first alignment device is provided for moving and aligning the workpieces conveyed on the conveyor device on the basis of a detection result of the detection device, the first alignment device having a first alignment element that can be moved transversely to the conveying direction. The alignment device can thus move and align the workpiece as a function of the position of the structure on the workpiece determined by the detection device. The direction indicated transversely to the conveying direction means any direction that does not correspond to the conveying direction. As a result, the structure on the workpiece can be brought into a desired position with the workpiece for the subsequent processing. The structure on the workpiece is therefore displaced relative to a subsequently acting processing means.

Die Ausrichteinrichtung kann im Rahmen der Erfindung auf unterschiedliche Art und Weise ausgestaltet sein und beispielsweise auch berührungsfrei und ggf. unter Nutzung der Schwerkraft arbeiten. Bevorzugt wirkt die Ausrichteinrichtung schiebend oder ziehend auf das Werkstück ein. Das Werkstück kann auch von der Ausrichteinrichtung gegriffen werden.The alignment device can be designed in different ways within the scope of the invention and, for example, also work without contact and, if necessary, using gravity. The alignment device preferably acts in a pushing or pulling manner on the workpiece. The workpiece can also be gripped by the alignment device.

Die Vorrichtung zum Bearbeiten von Werkstücken weist ferner eine Bearbeitungseinrichtung zum Bearbeiten der ersten und/oder zweiten Werkstückschmalfläche mit wenigstens einem dem ersten Ausrichtelement nachgeschalteten ersten Bearbeitungsmittel auf. Die Bearbeitungseinrichtung ist besonders bevorzugt ein Doppelendprofiler, der nicht nur die Abmessungen des Werkstücks verändert, sondern den Werkstückschmalflächen ein Profil verleiht oder eine Formatbearbeitungseinheit. Besonders bevorzugt weist das Bearbeitungsmittel einen Fräser und bevorzugt ein Sägeblatt oder ein Schleifmittel auf.The device for processing workpieces also has a processing device for processing the first and / or second narrow workpiece surface with at least one first processing means connected downstream of the first alignment element. The processing device is particularly preferably a double-end profiler, which not only changes the dimensions of the workpiece, but also gives the workpiece narrow surfaces a profile or a Format processing unit. The processing means particularly preferably has a milling cutter and preferably a saw blade or a grinding means.

Gemäß einer weiteren Zielrichtung weist die Vorrichtung wenigstens eine Bearbeitungseinrichtung zum Bearbeiten der ersten und/oder zweiten Werkstückschmalfläche auf, die mindestens ein erstes Bearbeitungsmittel aufweist, das quer zur Förderrichtung auf Grundlage eines Erfassungsergebnisses der Erfassungseinrichtung verfahrbar ist. Bei dieser Ausführungsform der vorliegenden Erfindung ist die relative Verlagerung von Bearbeitungsmittel zur Struktur des Werkstückes somit durch eine Verlagerung des Bearbeitungsmittels quer zur Förderrichtung realisiert.According to a further aspect, the device has at least one processing device for processing the first and / or second narrow workpiece surface, which has at least one first processing means that can be moved transversely to the conveying direction on the basis of a detection result of the detection device. In this embodiment of the present invention, the relative displacement of the processing means to the structure of the workpiece is thus realized by a displacement of the processing means transversely to the conveying direction.

In den Unteransprüchen finden sich vorteilhafte Ausgestaltungen und Verbesserungen der Erfindung.Advantageous refinements and improvements of the invention can be found in the subclaims.

Gemäß einer bevorzugten Weiterbildung ist eine Kantenanbringeinrichtung der Bearbeitungseinrichtung nachgeschaltet angeordnet. Die Kantenanbringeinrichtung dient dazu, eine Kante an wenigstens einer der Werkstückschmalflächen anzubringen. Die Kante besteht dabei bevorzugt aus einem flexiblen Band. Dabei können für die Kantenanbringeinrichtung unterschiedlichste Technologien zum Einsatz kommen, die dem Fachmann geläufig sind, wie beispielsweise auch eine Fügetechnologie unter Einsatz eines Lasers oder einer anderen geeigneten Energiequelle. Die Kantenanbringeinrichtung weist bevorzugt ein Schneidaggregat auf, um über die Werkstückschmalflächen herausstehendes Kantenmaterial automatisiert entfernen zu können.According to a preferred development, an edge application device is arranged downstream of the processing device. The edge attachment device is used to attach an edge to at least one of the narrow workpiece surfaces. The edge preferably consists of a flexible band. A wide variety of technologies that are familiar to a person skilled in the art can be used for the edge application device, such as, for example, a joining technology using a laser or another suitable energy source. The edge attachment device preferably has a cutting unit in order to be able to automatically remove edge material protruding over the narrow workpiece surfaces.

Gemäß einer bevorzugten Ausführungsform weist die Bearbeitungseinrichtung wenigstens ein zweites Bearbeitungsmittel auf. Bevorzugt wirkt das erste Bearbeitungsmittel auf die erste Werkstückschmalfläche und das zweite Bearbeitungsmittel auf die zweite Werkstückschmalfläche ein. Dadurch können beide Werkstückschmalflächen gleichzeitig bearbeitet werden. Dabei können auch unterschiedliche Bearbeitungsmittel als erstes und zweites Bearbeitungsmittel zum Einsatz kommen, was zusätzliche Möglichkeiten für die Bearbeitung eröffnet.According to a preferred embodiment, the processing device has at least one second processing means. The first processing means preferably acts on the first narrow workpiece surface and the second processing means on the second workpiece narrow surface. This means that both workpiece surfaces can be machined at the same time. Different processing means can also be used as the first and second processing means, which opens up additional possibilities for processing.

Obgleich die im Rahmen des Verfahrens eingesetzte Vorrichtung auch mit nur einem Bearbeitungsmittel versehen sein kann, sind gemäß einer bevorzugten Ausführungsform mehrere erste Bearbeitungsmittel und mehrere zweite Bearbeitungsmittel vorgesehen. Dadurch können mehrere unterschiedliche Bearbeitungsmittel, wie z.B. Fräser und Sägemittel kombiniert werden. Bevorzugt sind wenigstens zwei der ersten Bearbeitungsmittel und/oder zwei der zweiten Bearbeitungsmittel unabhängig voneinander quer zur Förderrichtung gesteuert verfahrbar. Dies ermöglicht einen parallelen unabhängigen Einsatz der einzelnen Bearbeitungsmittel. Bevorzugt werden auch Bearbeitungsmittel redundant ausgeführt, so dass diese zur Laufzeit der Bearbeitungsvorrichtung ausgewechselt werden können, ohne dass die Bearbeitungsvorrichtung angehalten werden muss.Although the device used in the context of the method can also be provided with only one processing means, according to a preferred embodiment several first processing means and several second processing means are provided. This means that several different processing tools, such as milling cutters and sawing tools, can be combined. Preferably, at least two of the first processing means and / or two of the second processing means can be moved in a controlled manner transversely to the conveying direction, independently of one another. This enables the individual processing means to be used independently in parallel. Processing means are preferably also designed redundantly so that they can be exchanged while the processing device is running without the processing device having to be stopped.

Kurze Beschreibung der Zeichnungen Brief description of the drawings

Fig. 1Fig. 1
zeigt eine schematische Darstellung eines ersten Ausführungsbeispiels einer Vorrichtung, die zum Bearbeiten eines Werkstücks mit einer nicht erfindungsgemäßen, optisch erkennbaren grafischen Struktur verwendet wird; undshows a schematic representation of a first exemplary embodiment of a device which is used for processing a workpiece with an optically recognizable graphic structure not according to the invention; and
Fig. 2Fig. 2
zeigt eine schematische Darstellung eines zweiten Ausführungsbeispiels einer Vorrichtung, zum Bearbeiten eines Werkstücks mit einer nicht erfindungsgemäßen, optisch erkennbaren grafischen Struktur verwendet wird.shows a schematic representation of a second exemplary embodiment of a device which is used for processing a workpiece with an optically recognizable graphic structure not according to the invention.
Ausführliche Beschreibung bevorzugter AusführungsformenDetailed description of preferred embodiments

Die Erfindung wird im Folgenden anhand von Ausführungsbeispielen unter Bezugnahme auf die beiliegenden Figuren der Zeichnung näher erläutert. Mit den gezeigten Ausführungsbeispielen werden zwar Werkstücke mit einer nicht erfindungsgemäßen, optisch erkennbaren grafischen Struktur (auch "optische Struktur" bezeichnet) bearbeitet, jedoch dienen die Ausführungsbeispiele dem besseren Verständnis der in an Ansprüchen angegebenen Verfahren. In den Figuren bezeichnen dieselben Bezugszeichen gleiche oder funktionsgleiche Komponenten, soweit nichts Gegenteiliges angegeben ist.The invention is explained in more detail below on the basis of exemplary embodiments with reference to the accompanying figures of the drawing. With the exemplary embodiments shown, workpieces with an optically recognizable graphic structure (also referred to as “optical structure”) not according to the invention are processed, but the exemplary embodiments serve for a better understanding of the methods specified in the claims. In the figures, the same reference symbols denote the same or functionally identical components, unless stated otherwise.

Fig. 1 zeigt eine schematische Darstellung eines ersten Ausführungsbeispiels einer Vorrichtung 1 zum Bearbeiten von Werkstücken 2. Eine Fördereinrichtung 4 zum Fördern der Werkstücke 2 ist in dieser Abbildung vertikal verlaufend dargestellt. Zwei rechteckig dargestellte Werkstücke 2 sind auf der Fördereinrichtung 4 angeordnet. Die Werkstücke weisen eine rechteckig dargestellte optisch erkennbare grafische Struktur 5 auf ihrer Oberfläche auf. Die Fördereinrichtung 4 transportiert die Werkstücke in Richtung des Pfeils F. Die Werkstücke 2 weisen in Transportrichtung F gesehen eine erste Werkstückschmalfläche 6 und eine zweite Werkstückschmalfläche 7 auf, die das Werkstück 2 seitlich in der Förderrichtung F begrenzen. Fig. 1 shows a schematic representation of a first exemplary embodiment of a device 1 for processing workpieces 2. A conveyor device 4 for conveying the workpieces 2 is shown running vertically in this figure. Two workpieces 2, shown as a rectangle, are arranged on the conveyor device 4. The workpieces have an optically recognizable graphic structure 5, shown as a rectangle, on their surface. The conveying device 4 transports the workpieces in the direction of the arrow F. The workpieces 2 have a first narrow workpiece surface 6 and a second narrow workpiece surface 7, seen in the transport direction F, which limit the workpiece 2 laterally in the conveying direction F.

Ein Einlauflineal 8 ist unten links in der Grafik dargestellt. Es hat die Aufgabe das Werkstück 2 an seiner ersten Werkstückschmalfläche 6 in einer Richtung quer zur Förderrichtung F vorauszurichten. Eine Bearbeitungseinrichtung 10 ist längs der Fördereinrichtung 4 angeordnet. Die Bearbeitungseinrichtung weist bei diesem Ausführungsbeispiel drei erste Bearbeitungsmittel 11 und drei zweite Bearbeitungsmittel 12 auf, die hier als Kreise dargestellt sind. Eine Erfassungseinrichtung 30 zum Erfassen einer Position der optischen Struktur 5 der auf der Fördereinrichtung 4 geförderten Werkstücke 2 ist unten rechts im Bild dargestellt.An infeed ruler 8 is shown at the bottom left in the graphic. It has the task of pre-aligning the workpiece 2 on its first narrow workpiece surface 6 in a direction transverse to the conveying direction F. A processing device 10 is arranged along the conveying device 4. In this exemplary embodiment, the processing device has three first processing means 11 and three second processing means 12, which are shown here as circles. A detection device 30 for detecting a position of the optical structure 5 of the workpieces 2 conveyed on the conveyor device 4 is shown at the bottom right in the picture.

Im Betrieb der Vorrichtung 1 werden die Werkstücke 2 mittels der Fördereinrichtung 4 in der Transportrichtung F verfahren. Dabei passieren sie die Erfassungseinrichtung 30, die die Position der optischen Struktur 5 der auf der Fördereinrichtung 4 geförderten Werkstücke 2 erfasst. Das Werkstück 2 wird dann an der Bearbeitungseinrichtung 10 entlang gefördert. Dabei wird es von den ersten Bearbeitungsmitteln 11 und den zweiten Bearbeitungsmitteln 12 bearbeitet. Die ersten Bearbeitungsmittel 11 sind quer zur Förderrichtung F auf Grundlage des Erfassungsergebnisses der Erfassungseinrichtung 30 verfahrbar.When the device 1 is in operation, the workpieces 2 are moved in the transport direction F by means of the conveyor device 4. In doing so, they pass the detection device 30, which detects the position of the optical structure 5 of the workpieces 2 conveyed on the conveyor device 4. The workpiece 2 is then conveyed along the machining device 10. It is processed by the first processing means 11 and the second processing means 12. The first processing means 11 can be moved transversely to the conveying direction F on the basis of the detection result of the detection device 30.

Die Position der Struktur 5 auf dem Werkstück 2 wird durch die Erfassungseinrichtung 30 festgestellt und in einer Steuereinrichtung verrechnet. Mit dem Ergebnis aus dieser festgestellten tatsächlichen Position der Struktur 5 und einer festgelegten Sollgeometrie wird eine Steuerung von einem Verfahren der ersten Bearbeitungsmittel 11 quer zur Förderrichtung F durchgeführt. Dadurch kann bei diesem Ausführungsbeispiel eine Bearbeitung der zweiten Werkstückschmalfläche 7 in Abhängigkeit von der Position der Struktur 5 erfolgen. Dadurch ist es möglich, durch die Bearbeitung ein Werkstück 2 zu erhalten, dass die Struktur 5 in einem gewünschten Abstand zur bearbeiteten zweiten Werkstückschmalfläche 7 aufweist.The position of the structure 5 on the workpiece 2 is determined by the detection device 30 and offset in a control device. With the result of this established actual position of the structure 5 and a specified target geometry, a control of a process of the first processing means 11 transversely to the conveying direction F is carried out. As a result, in this exemplary embodiment, the second narrow workpiece surface 7 can be machined as a function of the position of the structure 5. This makes it possible to obtain a workpiece 2 through the machining that has the structure 5 at a desired distance from the machined second narrow workpiece surface 7.

Fig. 2 zeigt eine schematische Darstellung eines zweiten Ausführungsbeispiels einer Vorrichtung 1 zum Bearbeiten von Werkstücken 2. Wie beim ersten Ausführungsbeispiel beschrieben, wird das Werkstück 2 im Bild von unten nach oben verlaufend von der Fördereinrichtung 4 gefördert. Das Werkstück 2 weist wieder eine erste Werkstückschmalfläche 6 und eine zweite Werkstückschmalfläche 7 auf. Eine optische Erfassungseinrichtung ist vorgesehen, um eine Position einer optischen Struktur 5 der auf der Fördereinrichtung 4 geförderten Werkstücke 2 zu erfassen. Die Struktur 5 ist zwischen einer ersten Werkstückschmalfläche 6 und einer zweiten Werkstückschmalfläche 7, die das Werkstück 2 seitlich in der Förderrichtung F begrenzen, angeordnet. Mittels eines Einlauflineals 8 wird das Werkstück 2 auf der Fördereinrichtung 4 quer zur Förderrichtung F vorjustiert. Bei diesem Ausführungsbeispiel erfolgt eine Bearbeitung der ersten Werkstückschmalfläche 6 durch zweite Bearbeitungsmittel 12, die hier als Kreise dargestellt sind, bevor das Werkstück 2 der Erfassungseinrichtung 30 zugeführt wird. Eine erste Ausrichteinrichtung 20 ist zum Verschieben und Ausrichten der auf der Fördereinrichtung 4 geförderten Werkstücke 2 auf Grundlage eines Erfassungsergebnisses der Erfassungseinrichtung 30 vorgesehen. Fig. 2 shows a schematic representation of a second exemplary embodiment of a device 1 for processing workpieces 2. As described in the first exemplary embodiment, the workpiece 2 is conveyed by the conveying device 4 running from bottom to top in the image. That Workpiece 2 again has a first narrow workpiece surface 6 and a second narrow workpiece surface 7. An optical detection device is provided in order to detect a position of an optical structure 5 of the workpieces 2 conveyed on the conveyor device 4. The structure 5 is arranged between a first narrow workpiece surface 6 and a second narrow workpiece surface 7, which laterally delimit the workpiece 2 in the conveying direction F. The workpiece 2 is pre-adjusted on the conveyor 4 transversely to the conveying direction F by means of an infeed ruler 8. In this exemplary embodiment, the first narrow workpiece surface 6 is processed by second processing means 12, which are shown here as circles, before the workpiece 2 is fed to the detection device 30. A first alignment device 20 is provided for moving and aligning the workpieces 2 conveyed on the conveyor device 4 on the basis of a detection result of the detection device 30.

Die erste Ausrichteinrichtung 20 weist ein erstes Ausrichtelement 21 auf, das quer zur Förderrichtung F verfahrbar ist und schiebend auf die erste Werkstückschmalfläche 6 einwirkt und dadurch das Werkstück 2 quer zur Förderrichtung F verlagert. Die erste Ausrichteinrichtung 20 weist ferner ein zweites Ausrichtelement 22 auf, das quer zur Förderrichtung F verfahrbar ist und schiebend auf die zweite Werkstückschmalfläche 7 einwirkt und dadurch das Werkstück 2 quer zur Förderrichtung F verlagert. Durch die Ausrichtelemente 21 und 22 dieser Ausführungsform kann das Werkstück auf der Fördereinrichtung 4 positioniert werden. Dabei wirken die Ausrichtelemente 21 und 22 vorteilhaft nacheinander auf das Werkstück ein. Anstelle eines schiebenden Einwirkens können auch andere Mechanismen zum Einsatz kommen, wie beispielsweise ein Greifen.The first alignment device 20 has a first alignment element 21 which can be moved transversely to the conveying direction F and acts in a pushing manner on the first narrow workpiece surface 6 and thereby displaces the workpiece 2 transversely to the conveying direction F. The first alignment device 20 also has a second alignment element 22, which can be moved transversely to the conveying direction F and acts in a sliding manner on the second narrow workpiece surface 7, thereby displacing the workpiece 2 transversely to the conveying direction F. The workpiece can be positioned on the conveyor 4 by the alignment elements 21 and 22 of this embodiment. The alignment elements 21 and 22 act advantageously one after the other on the workpiece. Instead of a pushing action, other mechanisms can also be used, such as gripping.

Erste Bearbeitungsmittel 11 der Bearbeitungseinrichtung 10 sind der ersten Ausrichteinrichtung 20 nachgeschaltet angeordnet. Die ersten Bearbeitungsmittel 11 wirken auf die zweite Werkstückschmalfläche 7 ein.First processing means 11 of the processing device 10 are arranged downstream of the first alignment device 20. The first processing means 11 act on the second workpiece surface 7.

Bei diesem Ausführungsbeispiel sind zwischen einzelnen ersten Bearbeitungsmitteln 11 ein erstes Ausrichtelement 25 und ein zweites Ausrichtelement 26 einer zweiten Ausrichteinrichtung 24 angeordnet. Die zweite Ausrichteinrichtung 24 ist zum Verschieben und Ausrichten der auf der Fördereinrichtung 4 geförderten Werkstücke 2 auf Grundlage eines Erfassungsergebnisses vorgesehen, das von einer nicht näher gezeigten, weiteren Erfassungseinrichtung und/oder der Erfassungseinrichtung 30 bereitgestellt wird.In this exemplary embodiment, a first alignment element 25 and a second alignment element 26 of a second alignment device 24 are arranged between individual first processing means 11. The second alignment device 24 is provided for moving and aligning the workpieces 2 conveyed on the conveyor device 4 on the basis of a detection result that is provided by a further detection device and / or the detection device 30, not shown in detail.

Das erste Ausrichtelement 25 wirkt dabei auf die erste Werkstückschmalfläche 6 schiebend ein, und das zweite Ausrichtelement 26 wirkt dann auf die zweite Werkstückschmalfläche 7 schiebend ein, wodurch das Werkstück 2 quer zur Förderrichtung F hin und her geschoben werden kann. Dadurch kann eine Zwischenpositionierung der Struktur 5 zwischen einzelnen Bearbeitungsschritten erfolgen, was ein noch genaueres Bearbeitungsergebnis ermöglicht. Bei diesem Ausführungsbeispiel ist eine Kantenanbringeinrichtung 27 den Bearbeitungsmitteln 11, 12 nachgeschaltet angeordnet, die Kanten an die Werkstückschmalflächen 6, 7 anleimt.The first alignment element 25 acts in a pushing manner on the first narrow workpiece surface 6, and the second alignment element 26 then acts in a pushing manner on the second narrow workpiece surface 7, as a result of which the workpiece 2 can be pushed back and forth transversely to the conveying direction F. As a result, the structure 5 can be positioned between individual processing steps, which enables an even more precise processing result. In this exemplary embodiment, an edge attachment device 27 is arranged downstream of the processing means 11, 12 and glues the edges to the narrow workpiece surfaces 6, 7.

BezugszeichenlisteList of reference symbols

11
Vorrichtung zum Bearbeiten von WerkstückenDevice for processing workpieces
22
Werkstückworkpiece
44th
FördereinrichtungConveyor
55
Strukturstructure
66th
erste Werkstückschmalflächefirst workpiece surface
77th
zweite Werkstückschmalflächesecond workpiece surface
88th
EinlauflinealInfeed ruler
1010
BearbeitungseinrichtungMachining facility
1111
erstes Bearbeitungsmittelfirst processing means
1212th
zweites Bearbeitungsmittelsecond processing means
2020th
erste Ausrichteinrichtungfirst alignment device
2121
erstes Ausrichtelement der ersten Ausrichteinrichtungfirst alignment element of the first alignment device
2222nd
zweites Ausrichtelement der ersten Ausrichteinrichtungsecond alignment element of the first alignment device
2424
zweite Ausrichteinrichtungsecond alignment device
2525th
erstes Ausrichtelement der zweiten Ausrichteinrichtungfirst alignment element of the second alignment device
2626th
zweites Ausrichtelement der zweiten Ausrichteinrichtungsecond alignment element of the second alignment device
2727
KantenanbringeinrichtungEdge applicator
3030th
ErfassungseinrichtungDetection device
3434
MarkierungseinheitMarking unit
FF.
FörderrichtungConveying direction

Claims (12)

  1. Method for aligning workpieces (2) using a device (1)
    for processing workpieces (2) which preferably consist at least partly of wood, wood-based materials, plastic or the like, wherein the device comprises:
    a conveyor device (4) for transporting the workpieces (2) in a conveying direction (F);
    an electronic, optical detection device (30) for detecting a position of a three-dimensional structure (5) of the workpieces (2) transported on the conveyor device (4), wherein the structure (5) is arranged between a first narrow surface of the workpiece (6) and a second narrow surface of the workpiece (7) which limit the workpiece (2) laterally in the conveying direction (F); and
    a first alignment device (20) for moving and aligning the workpieces (2) transported on the conveyor device (4) on the basis of a detection result of the detection device (30), wherein the first alignment device (20) has a first alignment element (22) that can be moved transversely to the conveying direction (F); and
    a processing device (10) for processing the first and/or second narrow surface of the workpiece (6, 7) which has at least one first processing means (11) downstream of the first alignment element (22),
    wherein the method comprises the steps:
    transporting a workpiece (2) by means of the conveyor device (4);
    detecting a position of a three-dimensional structure (5) of the workpieces (2) transported on the conveyor device (4), wherein the structure (5) is arranged on the workpiece between a first narrow surface of the workpiece (6) and a second narrow surface of the workpiece (7) which limit the workpiece (2) laterally in the conveying direction (F), wherein the three-dimensional structure is a chamfer or rounding pressed in a surface press which is pressed in in such a way that the finished workpieces form a joint when they are laid together,
    moving and aligning the workpiece (2) transported on the conveyor device (4) transversely to the conveying direction (F) on the basis of the detection result of the detection device (30),
    wherein the detection and/or displacement or alignment are carried out while the workpiece (2) is being transported in the conveying direction (F);
    processing at least one narrow surface of the workpiece (6, 7).
  2. Method for aligning workpieces (2) using a device (1)
    for processing workpieces (2) which preferably consist at least partly of wood, wood-based materials, plastic or the like, wherein the device comprises:
    a conveyor device (4) for transporting the workpieces (2) in a conveying direction (F);
    an electronic, optical detection device (30) for detecting a position of a three-dimensional structure (5) of the workpieces (2) transported on the conveyor device (4), wherein the structure (5) is arranged between a first narrow surface of the workpiece (6) and a second narrow surface of the workpiece (7) which limit the workpiece (2) laterally in the conveying direction (F);
    at least one processing device (10) for processing the first and/or second narrow surface of the workpiece (6, 7) which has at least one first processing means (11) which can be moved transversely to the conveying direction (F) on the basis of a detection result of the detection device (30),
    wherein the method includes the steps:
    transporting a workpiece (2) by means of the conveyor device (4);
    detecting a position of a three-dimensional structure (5) of the workpieces (2) transported on the conveyor device (4), wherein the structure (5) is arranged on the workpiece between a first narrow surface of the workpiece (6) and a second narrow surface of the workpiece (7) which limit the workpiece (2) laterally in the conveying direction (F), wherein the three-dimensional structure is a chamfer or rounding pressed in a surface press which is pressed in in such a way that the finished workpieces form a joint when they are laid together,
    moving at least one processing means (11, 12) of the processing device (10) in order to process the first and/or second narrow surface of the workpiece (6, 7) transversely to the conveying direction (F) on the basis of the detection result of the detection device (30),
    wherein the movement is carried out while the workpiece (2) is being transported in the conveying direction (F).
  3. Method according to claim 1 or 2,
    characterised in that
    a method step of an edge gluing is carried out downstream of the method step of the processing.
  4. Method according to one of the claims 1, 2 or 3,
    characterised in that
    the processing device (10) performs a milling operation.
  5. Method according to one of the claims 1 to 4 characterised in that
    the structure (5) is applied to the workpiece (2) upstream of the detection of a position of the three-dimensional structure (5).
  6. Method according to one of the preceding claims, characterised in that an edge attachment device (27) is arranged downstream of the processing device (10).
  7. Method according to one of the preceding claims, characterised in that the processing device (10) has at least one second processing means (12), wherein the first processing means (11) preferably acts on the first narrow surface of the workpiece (6) and the second processing means (12) preferably acts on the second narrow surface of the workpiece (7), wherein particularly preferably a plurality of first processing means (11) and a plurality of second processing means (12) are provided.
  8. Method according to claim 7, characterised in that at least two of the first processing means (11) and/or two of the second processing means (12) can be moved, independently, transversely to the conveying direction (F) in a controlled manner.
  9. Method according to one of the preceding claims, characterised in that a second alignment device (24) is provided for moving and aligning the workpieces (2) transported on the conveyor device (4) on the basis of a detection result of the detection device (30) and/or a further detection device which has at least a first alignment element (25) which is moveable transversely to the conveying direction (F).
  10. Method according to claim 9, characterised in that the second alignment device (24) has at least one second alignment element (26) which is moveable transversely to the conveying direction (F), wherein the first alignment element (25) preferably acts on the first narrow surface of the workpiece (6) and the second alignment element (26) preferably acts on the second narrow surface of the workpiece (7), wherein particularly preferably a plurality of first alignment elements (25) and a plurality of second alignment elements (26) are provided.
  11. Method according to claim 10, characterised in that at least two of the first alignment elements (25) and/or two of the second alignment elements (26) can be moved, independently, transversely to the conveying direction (F) in a controlled manner.
  12. Method according to one of the claims 10 to 11, where dependent on claim 7,
    characterised in that at least one of the first alignment elements (25) is arranged between the first processing means (11) and/or one of the second alignment elements (26) is arranged between the second processing means (12), in relation to the conveying direction (F).
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