EP0455962B1 - Apparatus for machining joint elements from natural wood, particularly for window frames and window sash elements - Google Patents

Apparatus for machining joint elements from natural wood, particularly for window frames and window sash elements Download PDF

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Publication number
EP0455962B1
EP0455962B1 EP19910104275 EP91104275A EP0455962B1 EP 0455962 B1 EP0455962 B1 EP 0455962B1 EP 19910104275 EP19910104275 EP 19910104275 EP 91104275 A EP91104275 A EP 91104275A EP 0455962 B1 EP0455962 B1 EP 0455962B1
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Prior art keywords
milling
squared
advancement
forming
workpiece
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EP19910104275
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German (de)
French (fr)
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EP0455962A2 (en
EP0455962A3 (en
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Alfred Ullrich Berger
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    • 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 invention relates to a device for processing parts to be joined from natural wood, in particular scantlings for window frames and casements.
  • DE-OS 35 33 404 shows a device for processing parts to be made of natural wood, in particular Kantein for window frames and sashes, consisting of a movable workpiece carrier for supporting the scantling, which is successively attached to a sawing device for cutting to length, a drilling device for the front Drilling blind holes in mullions and transoms and a milling device to form slot and tenon connections or counter-profiling. Furthermore, drilling units are provided for double-sided drilling of blind holes in the longitudinal profile for the attachment of mullions and transoms. The front processing of the wooden scantlings is carried out again in the second part of the facility on the opposite side.
  • the feed device is reversed so that the workpiece carrier moves back into its starting position.
  • the workpiece is then released from the clamping device, rotated by 180 ° and clamped again.
  • the workpiece is guided past the milling tool again by means of the feed device, so that the final profiling of the still unprocessed end of the workpiece can be carried out.
  • the feed device is stopped and the workpiece is pushed onto a transport device arranged approximately perpendicular to the previous feed direction, which expediently consists of a roller conveyor, which guides the workpiece resting on a fixed table past a milling tool, which the longitudinal profile, namely the window sash inner profile or the inner frame profile frame inner profile carried out laterally and below.
  • the workpiece processed in this way is then fed from the transport device to a glazing bead separating saw, which, in conjunction with the milling tool, separates the window sash inner profile and the glazing bead from the window rebate ("Unicontrol" angle machine from Michael Weinig AG in Tauberbischofsheim).
  • This known device has the serious disadvantage of cost, which is primarily due to the milling tool for forming the end profiles with the associated tool carriers.
  • the transfer device that is absolutely necessary to change the feed direction and that feeds the workpiece to the milling devices for longitudinal profiling after the final profiling.
  • the object of the invention is to reduce the constructional effort and the tooling effort of the device known in the prior art to a minimum.
  • the various tools are arranged in an aligned row and the feed device is divided into two successive devices, the first feed device being a workpiece carrier with a clamping device and movable along a guide the second feed device is a transport path with a parallel stop bar for the same feed direction as the workpiece carrier, and the workpiece carrier feed serves for end machining and the transport path feed serves for longitudinal machining.
  • the inventive measure eliminates the conventional, structurally complex milling device for forming the end profile of the wooden frame for slot and tenon connections.
  • This compact and also complicated device is thus replaced by an extremely simple drilling device, which only creates the conditions for a cheap dowel connection of the individual scantlings for the purpose of completing a sash or window frame. Due to the aligned arrangement of all devices, the linearity of the transport path of the scantling is preserved across all work processes, so that a transfer device for deflecting the transport path is completely unnecessary.
  • the deeply engaging, elaborate tools for the double-slot pin connection in the area of the window corners for blind and casement frames are no longer required and are completely replaced via the dowel connection that is created via the blind holes.
  • the drilling device expediently has one or more drills which can be moved into the working position by means of compressed air.
  • the milling device for cutting the scraper to length can be advantageously a circular saw that can be raised and lowered.
  • a workpiece carrier is designated, which has the shape of a table, which is along a guide 2, z. B. a round tour, guided and can be moved in the feed direction, ie in the two Figures 1 and 2 from right to left.
  • the workpiece carrier 1 is driven by an electric motor 2a, which is connected to a pinion (not shown in the drawing for the sake of clarity), which in turn engages in a rack 3. It is clear that this feed device can also be designed differently.
  • a clamping device 4 Arranged on the workpiece carrier 1 is a clamping device 4 which, in the embodiment shown, has a pressure-actuated cylinder 5, with the piston rod of which a pressure member 6 is connected, which in the operating position holds the workpiece 7 - in the present case the wooden crate to be processed - is.
  • a clamping device 4 Arranged on the workpiece carrier 1 is a clamping device 4 which, in the embodiment shown, has a pressure-actuated cylinder 5, with the piston rod of which a pressure member 6 is connected, which in the operating position holds the workpiece 7 - in the present case the wooden crate to be processed - is.
  • more than one wooden scantling can be spanned.
  • the workpiece carrier 1 can be swiveled by 60 ° on both sides, so that the end faces of the workpiece can also be machined at a certain angle.
  • Reference number 8 indicates a milling device for cutting the workpiece 7 to length, which cuts it transversely to the wood fiber to the desired length.
  • a lifting and lowering circular saw is provided as the milling device, the invention being of course not restricted to this particular embodiment. By lowering the circular saw is brought into the cutting position, by lifting it into the non-operating position.
  • FIG. 3 of the drawing shows a partial representation of a scantling with the two blind holes 10 and the dowels 11 used as connecting elements.
  • the drilling device 9 has one or more drills 12 which are expediently movable into the working position by means of compressed air.
  • each drill is assigned a cylinder which can be pressurized with a pressure medium and which is in the Drawing is not shown for the sake of clarity. If the pressure medium supply is interrupted, then the individual drills 12 automatically move back into their rest position. The return movement can also be carried out by means of springs.
  • the workpiece 7 clamped on the workpiece carrier 1 moves past a milling device 13 for forming the counter profile, where counter profiles for the elements of the window frame or sash frame for the window are milled in at the end.
  • These counter profiles are indicated in FIG. 3 of the drawing with the reference numbers 14 and 15, respectively.
  • the milling device 13 consists of two lifting and lowering milling drums 17, 18 arranged separately on a driven spindle 16, wherein one or the other milling drums 17, 18 can be removed by loosening a nut 18a and possibly replaced by another milling drum.
  • the workpiece carrier 1 is intercepted by a buffer 19, the movement of the workpiece carrier 1 being reversed via a switching mechanism (not shown), which then stops in the starting position.
  • the one-sided processed wooden scantling is now released from the tensioning device 4, rotated through 180 ° in the horizontal plane and placed against a stop 20 which can be adjusted by hand or mechanically or electronically. After tensioning, the wooden scantling is cut to the desired length by the milling device 8. With the facilities 8, 9 and 13, in turn, all those machining operations are carried out that were previously carried out on one end of the wooden frame.
  • milling roller 17 While the milling roller 17 is used in the counter-profiling of parts of the casement, this machining process is carried out with parts of the frame using the milling roller 18. This is the reason why a total of two milling drums 17 and 18 are provided.
  • the two milling drums 17 and 18 can be moved pneumatically, hydraulically or else mechanically into the respective operating position.
  • the former If the workpiece carrier 1 strikes against the buffer 19, the former is stopped. Then the workpiece 7 machined on the two end faces in the desired shape is released from the clamping device 4, pivoted by 90 ° counterclockwise by hand and placed on a transport device 31, which the workpiece 7 a device 21 for forming the longitudinal profile and a device 22 leads to the formation of the glass holding strip of the cantilever.
  • the device 21 for forming the longitudinal profile of the scantling consists of three lifting and lowering milling drums 24 - 26 which are arranged separately on a driven spindle 23 and can be detached from the associated spindle 23 by loosening the screw nut 27.
  • the device 21 mills the sash profiles with the glazing rebate profile with an integrated glazing bead, the device 22, which is switched on and lowered if necessary, takes over the removal of the glazing bead.
  • the upper frame part and the two upright frame wing parts are provided with the same inner longitudinal profile. This longitudinal profiling set is located as a further tool on the spindle 23 of the device 21.
  • a frame or sash consists of two upright and two transverse wooden scantlings.
  • the machining of workpieces 7 was described at the beginning.
  • the upright parts to be joined are cut to a predetermined length by means of the milling device 8.
  • the workpiece carrier 1 moves back to the starting position.
  • the part to be joined is relaxed, pivoted through 90 ° and clamped again by means of the clamping device 4, parallel to the stop edge of the workpiece holder 1.
  • the position of the wooden frame now runs coaxially to the feed direction of the workpiece carrier 1.
  • This workpiece carrier 1 then travels to the drilling device 9, where 12 blind holes are now drilled perpendicular to the grain of the workpiece 7 by means of the preselected drilling pattern with the drills.
  • This aforementioned work operation takes place at the beginning and end of each upright wooden frame.
  • intermediate drilling positions can naturally be arranged, depending on the architectural division ratio of the element.
  • the device described above can be equipped extremely simply to form a frame milling machine.
  • the mobile workpiece carrier 1 is advanced as a workpiece support up to the axis A-A of the device 13.
  • the upper longitudinal profiling tool 17 is exchanged for a second, co-rotating wing profile profiling set.
  • the end grain is machined in synchronous milling.
  • the milling drum 24 is replaced by the wing milling set 28 of the device 23. It works in the opposite direction and cuts in the area of longitudinal profiling.
  • the set working in synchronism works in the device 13 and is pneumatically or hydraulically immersed as a plunge milling unit about 150 mm before the end of the frame. In this way, a wing milling is possible according to FIG. 3 of the drawing.
  • the frame profile 29 represents the upper and the two lateral inner profiles of the associated frame. This inner profile is produced with the device 21 and the frame milling drum 24 in counter-milling.
  • the associated counter profile 30 is carried out with the milling device 13 and the milling drum 18.
  • the milling drum 25 provides the frame profile inside below.

Description

Die Erfindung bezieht sich auf eine Vorrichtung zur Bearbeitung von Fügeteilen aus Naturholz, insbesondere Kanteln für Blend- und Flügelrahmen von Fenstern.The invention relates to a device for processing parts to be joined from natural wood, in particular scantlings for window frames and casements.

Die DE-OS 35 33 404 zeigt eine Vorrichtung zur Bearbeitung von Fügeteilen aus Naturholz, insbesondere Kantein für Blend- und Flügelrahmen von Fenstern, bestehend aus einem beweglichen Werkstückträger zur Auflage des Kantels, welcher es nacheinander an einer Sägeeinrichtung zur Ablängung, einer Bohreinrichtung zum stirnseitigen Bohren von Sacklöchern in Pfosten und Riegel und einer Fräseinrichtung zur Ausbildung von Schlitz- und Zapfenverbindungen oder Konterprofilierung vorbeiführt. Ferner sind Bohreinheiten für beidseitige Einbringung von Sacklochbohrungen im Längsprofil für die Befestigung von Pfosten und Riegel vorgesehen. Die stirnseitige Bearbeitung der Holzkantel wird im zweiten Teil der Einrichtung auf der gegenüberliegenden Seite nochmals durchgeführt. Die Grundkonzeption dieser bekannten Einrichtung liegt darin, daß nur die Endprofile von Pfosten und Riegel mittels Dübeln im Holzrahmen verbunden werden, während im übrigen in den Anschlußverbindungen Doppelschlitz-Zapfen beibehalten werden. Nachteilig ist dabei der relativ große bauliche Aufwand und erhebliche Werkzeugaufwand, die relativ langen Förderwege sowie die Umkehrung der Förderrichtung.DE-OS 35 33 404 shows a device for processing parts to be made of natural wood, in particular Kantein for window frames and sashes, consisting of a movable workpiece carrier for supporting the scantling, which is successively attached to a sawing device for cutting to length, a drilling device for the front Drilling blind holes in mullions and transoms and a milling device to form slot and tenon connections or counter-profiling. Furthermore, drilling units are provided for double-sided drilling of blind holes in the longitudinal profile for the attachment of mullions and transoms. The front processing of the wooden scantlings is carried out again in the second part of the facility on the opposite side. The basic concept of this known device is that only the end profiles of the mullion and transom are connected by means of dowels in the wooden frame, while in the rest of the connection connections double slot pins are retained. Disadvantages here are the relatively large construction costs and considerable tool expenditure, the relatively long conveying paths and the reversal of the conveying direction.

Bei der Herstellung von Fenstern geht man von Kanteln aus, deren Endprofile als Schlitz- und Zapfenverbindung ausgebildet sind. Dazu benötigt man Fräsvorrichtungen, welche die Endprofile der sowohl für Flügel- als auch Blendrahmen von Fenstern geeignet und bestimmten Kanteln entsprechend gestalten. Hinzu kommen noch weitere getrennte Fräswerkzeuge, welche die Kanteln mit Längsprofilen versehen. Die vorstehend geschilderten Arbeitsvorgänge laufen in der Weise ab, daß das Werkstück, also das zu bearbeitende Holzkantel, auf einem Werkstückträger aufgespannt und anschließend daran mittels einer Vorschubeinrichtung an einem einstückigen Fräswerkzeug vorbeigeführt wird. Das Werkstück ist auf dem Werkstückträger so angeordnet, daß es senkrecht zur Vorschubrichtung steht.In the production of windows one starts with scantlings, the end profiles of which are designed as slot and peg connections. This requires milling devices that design the end profiles that are suitable for both sash and window frames of windows and design certain scantlings accordingly. There are also other separate milling tools that provide the scantlings with longitudinal profiles. The above-described work processes take place in such a way that the workpiece, that is to say the wooden scantling to be machined, is clamped on a workpiece carrier and is then guided past it by a one-piece milling tool by means of a feed device. The workpiece is arranged on the workpiece carrier so that it is perpendicular to the feed direction.

Nach diesem Arbeitsvorgang wird die Vorschubvorrichtung reversiert, so daß sich der Werkstückträger wieder in seine Ausgangsstellung zurückbewegt. Das Werkstück wird dann von der Spannvorrichtung gelöst, um 180° gedreht und wieder eingespannt. Dann wird das Werkstück mittels der Vorschubvorrichtung an dem Fräswerkzeug wieder vorbeigeführt, so daß die Endprofilierung des noch unbearbeiteten Endes des Werkstückes durchgeführt werden kann. Nach Erreichen eines Endpunktes wird die Vorschubvorrichtung stillgesetzt und das Werkstück auf eine etwa senkrecht zur bisherigen Vorschubrichtung angeordnete Transportvorrichtung aufgeschoben, welche zweckmäßig aus einem Rollenförderer besteht, der das auf einem feststehenden Tisch ruhende Werkstück an einem Fräswerkzeug vorbeiführt, welches die Längsprofilierung, nämlich das Fensterflügelinnenprofil bzw. das Blendrahmeninnenprofil rahmeninnenprofil seitlich und unten durchführt. Das auf diese Weise bearbeitete Werkstück wird dann von der Transportvorrichtung einer Glasleisten-Trennsäge zugeführt, welche in Verbindung mit dem Fräswerkzeug das Fensterflügelinnenprofil und die Glasleiste aus dem Fensterfalz heraustrennt (Winkelmaschinentyp "Unicontrol" der Firma Michael Weinig AG in Tauberbischofsheim).After this operation, the feed device is reversed so that the workpiece carrier moves back into its starting position. The workpiece is then released from the clamping device, rotated by 180 ° and clamped again. Then the workpiece is guided past the milling tool again by means of the feed device, so that the final profiling of the still unprocessed end of the workpiece can be carried out. After reaching an end point, the feed device is stopped and the workpiece is pushed onto a transport device arranged approximately perpendicular to the previous feed direction, which expediently consists of a roller conveyor, which guides the workpiece resting on a fixed table past a milling tool, which the longitudinal profile, namely the window sash inner profile or the inner frame profile frame inner profile carried out laterally and below. The workpiece processed in this way is then fed from the transport device to a glazing bead separating saw, which, in conjunction with the milling tool, separates the window sash inner profile and the glazing bead from the window rebate ("Unicontrol" angle machine from Michael Weinig AG in Tauberbischofsheim).

Diese bekannte Einrichtung hat den schwerwiegenden Nachteil der Kostenaufwendigkeit, die in erster Linie auf das Fräswerkzeug für die Formung der Endprofile mit den dazugehörigen Werkzeugträgern zurückzuführen ist. Hinzu kommt noch die zur Änderung der Vorschubrichtung zwingend notwendige Übergabeeinrichtung, die das Werkstück nach der Endprofilierung den Fräsvorrichtungen zur Längsprofilierung zuführt.This known device has the serious disadvantage of cost, which is primarily due to the milling tool for forming the end profiles with the associated tool carriers. In addition, there is the transfer device that is absolutely necessary to change the feed direction and that feeds the workpiece to the milling devices for longitudinal profiling after the final profiling.

Hier setzt der Erfindungsgedanke ein. Aufgabe der Erfindung ist es, die im Stand der Technik bekannte Vorrichtung in ihrem baulichen Aufwand sowie in ihrem Werkzeugaufwand auf ein Minimum zu reduzieren.This is where the idea of the invention begins. The object of the invention is to reduce the constructional effort and the tooling effort of the device known in the prior art to a minimum.

Diese Aufgabe wird bei der Vorrichtung mit den Merkmalen des Oberbegriffes des Anspruches 1 dadurch gelöst, daß die verschiedenen Werkzeuge in einer fluchtenden Reihe angeordnet sind und die Vorschubeinrichtung in zwei aufeinanderfolgende Einrichtungen aufgeteilt ist, wobei die erste Vorschubeinrichtung ein längs einer Führung verfahrbarer Werkstückträger mit Aufspanneinrichtung und die zweite Vorschubeinrichtung eine Transportbahn mit paralleler Anschlagleiste für die gleiche Vorschubrichtung wie der Werkstückträger ist, und der WerkstückträgerVorschub der Stirnbearbeitung und der Transportbahn-Vorschub der Längsbearbeitung dient.This object is achieved in the device with the features of the preamble of claim 1 in that the various tools are arranged in an aligned row and the feed device is divided into two successive devices, the first feed device being a workpiece carrier with a clamping device and movable along a guide the second feed device is a transport path with a parallel stop bar for the same feed direction as the workpiece carrier, and the workpiece carrier feed serves for end machining and the transport path feed serves for longitudinal machining.

Durch die erfindungsgemäße Maßnahme entfällt die herkömmliche, baulich aufwendige Fräsvorrichtung zur Ausbildung des Endprofiles des Holzkantels für Schlitz- und Zapfenverbindungen. Diese kompakte und auch komplizierte Vorrichtung wird also ersetzt durch eine außerordentlich einfache Bohrvorrichtung, die erst die Voraussetzungen für eine billige Dübelverbindung der einzelnen Kanteln zum Zwecke der Komplettierung zu einem Flügel- oder Blendrahmen eines Fensters schafft. Durch die fluchtende Anordnung sämtlicher Einrichtungen bleibt die Linearität des Transportweges des Kantels über sämtliche Arbeitsvorgänge hinweg gewahrt, so daß eine Übergabevorrichtung zur Umlenkung des Transportweges vollständig entbehrlich ist. Die tief eingreifenden, aufwendigen Werkzeuge für die Doppelschlitz-Zapfenverbindung im Bereich der Fensterecken bei Blend- und Flügelrahmen entfallen und werden über die Dübelverbindung, die über die Sacklochbohrungen erzeugt werden, vollständig ersetzt.The inventive measure eliminates the conventional, structurally complex milling device for forming the end profile of the wooden frame for slot and tenon connections. This compact and also complicated device is thus replaced by an extremely simple drilling device, which only creates the conditions for a cheap dowel connection of the individual scantlings for the purpose of completing a sash or window frame. Due to the aligned arrangement of all devices, the linearity of the transport path of the scantling is preserved across all work processes, so that a transfer device for deflecting the transport path is completely unnecessary. The deeply engaging, elaborate tools for the double-slot pin connection in the area of the window corners for blind and casement frames are no longer required and are completely replaced via the dowel connection that is created via the blind holes.

Zweckmäßig weist die Bohreinrichtung ein oder mehrere Bohrer auf, welche mittels Druckluft in die Arbeitsstellung bewegbar sind.The drilling device expediently has one or more drills which can be moved into the working position by means of compressed air.

Vorteilhaft ist die Fräseinrichtung zum Ablängen des Kantels eine heb- und absenkbare Kreissäge.The milling device for cutting the scraper to length can be advantageously a circular saw that can be raised and lowered.

Weitere Merkmale der erfindungsgemäßen Vorrichtung gehen aus den Unteransprüchen, der nachfolgenden Beschreibung sowie der Zeichnung hervor, die in rein schematischer Weise zeigt:

  • Figur 1 eine Ansicht der Vorrichtung gemäß der Erfindung,
  • Figur 2 eine Draufsicht der Anordnung nach Figur 1,
  • Figur 3 im linken Teil einen waagerechten Schnitt durch das aufrechte linke Flügelprofil, während der rechte Teil dieser Figur das obere Querstück des Fensterflügels mit den einzubringenden Dübeln als Verbindungsmittel darstellt,
  • Figur 4 im linken Teil einen waagerechten Schnitt durch das aufrechte linke Blendrahmenprofil, während der rechte Teil dieser Figur die obere linke Ecke des Blendrahmens mit den Dübeln zeigt. Dabei ist der Schnitt B-B gleichzeitig auch der Schnitt durch das obere Querstück des Blendrahmens, weil beim Blendrahmen aufrechte Fügeteile gleiche Profilierung aufweisen.
Further features of the device according to the invention emerge from the subclaims, the following description and the drawing, which shows in a purely schematic manner:
  • FIG. 1 shows a view of the device according to the invention,
  • FIG. 2 shows a top view of the arrangement according to FIG. 1,
  • 3 shows in the left part a horizontal section through the upright left sash profile, while the right part of this figure represents the upper cross piece of the window sash with the dowels to be inserted as connecting means,
  • Figure 4 in the left part a horizontal section through the upright left frame profile, while the right part of this figure shows the upper left corner of the frame with the dowels. The section BB is also the section through the upper cross piece of the frame, because upright parts to be joined have the same profile in the frame.

Mit 1 (Figuren 1 und 2) ist ein Werkstückträger bezeichnet, welcher die Form eines Tisches aufweist, der längs einer Führung 2, z. B. einer Rundführung, geführt und in Vorschubrichtung, also in den beiden Figuren 1 und 2 von rechts nach links verfahrbar ist. Der Antrieb des Werkstückträgers 1 erfolgt über einen Elektromotor 2a, welcher mit einem in der Zeichnung der Übersichtlichkeit halber nicht weiter dargestellten Zahnritzel in Verbindung steht, das seinerseits in eine Zahnstange 3 eingreift. Es ist klar, daß diese Vorschubeinrichtung auch anders gestaltet sein kann.With 1 (Figures 1 and 2) a workpiece carrier is designated, which has the shape of a table, which is along a guide 2, z. B. a round tour, guided and can be moved in the feed direction, ie in the two Figures 1 and 2 from right to left. The workpiece carrier 1 is driven by an electric motor 2a, which is connected to a pinion (not shown in the drawing for the sake of clarity), which in turn engages in a rack 3. It is clear that this feed device can also be designed differently.

Auf dem Werkstückträger 1 ist eine Spannvorrichtung 4 angeordnet, die bei der dargestellten Ausführungsform einen druckmittelbetätigten Zylinder 5 aufweist, mit dessen Kolbenstange ein Druckglied 6 in Verbindung steht, das in der Betriebsstellung das Werkstück 7 - im vorliegenden Falle das zu bearbeitende Holzkantel - ist. Es können natürlich auch mehr als ein Holzkantel aufgespannt werden.Arranged on the workpiece carrier 1 is a clamping device 4 which, in the embodiment shown, has a pressure-actuated cylinder 5, with the piston rod of which a pressure member 6 is connected, which in the operating position holds the workpiece 7 - in the present case the wooden crate to be processed - is. Of course, more than one wooden scantling can be spanned.

Wie aus der Figur 2 ersichtlich, ist der Werkstückträger 1 nach beiden Seiten um 60° verschwenkbar, so daß die Stirnseiten des Werkstückes auch unter einem bestimmten Winkel bearbeitet werden können.As can be seen from FIG. 2, the workpiece carrier 1 can be swiveled by 60 ° on both sides, so that the end faces of the workpiece can also be machined at a certain angle.

Mit der Bezugsziffer 8 ist eine Fräseinrichtung zur Ablängung des Werkstückes 7 angedeutet, welche es quer zur Holzfaser auf die gewünschte Länge zuschneidet. Wie die Zeichnung deutlich macht, ist als Fräseinrichtung eine heb- und absenkbare Kreissäge vorgesehen, wobei die Erfindung auf diese besondere Ausführungsform selbstverständlich nicht beschränkt ist. Durch Absenken wird die Kreissäge in die Schneidstellung, durch Anheben in die Ausserbetriebsstellung überführt.Reference number 8 indicates a milling device for cutting the workpiece 7 to length, which cuts it transversely to the wood fiber to the desired length. As the drawing makes clear, a lifting and lowering circular saw is provided as the milling device, the invention being of course not restricted to this particular embodiment. By lowering the circular saw is brought into the cutting position, by lifting it into the non-operating position.

Anschließend daran bewegt die Vorschubeinrichtung das auf der einen Seite abgelängte Werkstück 7 an einer Bohreinrichtung 9 vorbei, welche in das Endprofil des Kantels Sacklöcher 10 zur Aufnahme von Dübeln bohrt. Die Figur 3 der Zeichnung zeigt in einer Teildarstellung ein Kantel mit den beiden Sacklöchern 10 und den eingesetzten Dübeln 11 als Verbindungselemente.Subsequently, the feed device moves the workpiece 7, which has been cut to length on one side, past a drilling device 9, which drills blind holes 10 in the end profile of the scantling for receiving dowels. FIG. 3 of the drawing shows a partial representation of a scantling with the two blind holes 10 and the dowels 11 used as connecting elements.

Die Bohreinrichtung 9 weist einen oder mehrere Bohrer 12 auf, die zweckmäßig mittels Druckluft in die Arbeitsstellung bewegbar sind. Dazu ist einem jeden Bohrer ein mit einem Druckmittel beaufschlagbarer Zylinder zugeordnet, der in der Zeichnung der Übersichtlichkeit halber nicht gezeigt ist. Wird die Druckmittelzufuhr unterbrochen, dann bewegen sich die einzelnen Bohrer 12 selbsttätig in ihre Ruhestellung wieder zurück. Die Rückbewegung kann auch mittels Federn erfolgen. Anschließend daran bewegt sich das am Werkstückträger 1 eingespannte Werkstück 7 an einer Fräseinrichtung 13 zur Ausbildung des Konterprofils vorbei, wo stirnseitig Konterprofile für die Elemente des Blendrahmens bzw. Flügelrahmens für das Fenster eingefräst werden. Diese Konterprofile sind in Figur 3 der Zeichnung mit den Bezugsziffern 14 bzw. 15 angedeutet. Die Fräseinrichtung 13 besteht aus zwei auf einer angetriebenen Spindel 16 getrennt angeordneten heb- und absenkbaren Fräswalzen 17, 18, wobei durch Lösen einer Mutter 18a die eine oder andere Fräswalze 17, 18 ausgebaut und ggf. durch eine andere Fräswalze ersetzt werden kann.The drilling device 9 has one or more drills 12 which are expediently movable into the working position by means of compressed air. For this purpose, each drill is assigned a cylinder which can be pressurized with a pressure medium and which is in the Drawing is not shown for the sake of clarity. If the pressure medium supply is interrupted, then the individual drills 12 automatically move back into their rest position. The return movement can also be carried out by means of springs. Subsequently, the workpiece 7 clamped on the workpiece carrier 1 moves past a milling device 13 for forming the counter profile, where counter profiles for the elements of the window frame or sash frame for the window are milled in at the end. These counter profiles are indicated in FIG. 3 of the drawing with the reference numbers 14 and 15, respectively. The milling device 13 consists of two lifting and lowering milling drums 17, 18 arranged separately on a driven spindle 16, wherein one or the other milling drums 17, 18 can be removed by loosening a nut 18a and possibly replaced by another milling drum.

Nachdem die zur Bearbeitung der Stirnseite des entsprechenden Kantels erforderlichen Bearbeitungsvorgänge durchgeführt werden, wird der Werkstückträger 1 von einem Puffer 19 abgefangen, wobei über einen nicht eingezeichneten Schaltmechanismus die Bewegung des Werkstückträgers 1 reversiert wird, der dann in der Ausgangsstellung anhält.After the machining operations required for machining the end face of the corresponding scantling are carried out, the workpiece carrier 1 is intercepted by a buffer 19, the movement of the workpiece carrier 1 being reversed via a switching mechanism (not shown), which then stops in the starting position.

Das einseitig bearbeitete Holzkantel wird nun aus der Spannvorrichtung 4 gelöst, um 180° in der waagerechten Ebene gedreht und gegen einen Anschlag 20 angelegt, welcher von Hand oder mechanisch bzw. elektronisch verstellbar ist. Nach dem Spannen wird das Holzkantel von der Fräseinrichtung 8 auf die gewünschte Länge zugeschnitten. Mit den Einrichtungen 8, 9 und 13 werden wiederum alle diejenigen Bearbeitungsvorgänge durchgeführt, die vorher an der einen Stirnseite des Holzkantels verwirklicht wurden.The one-sided processed wooden scantling is now released from the tensioning device 4, rotated through 180 ° in the horizontal plane and placed against a stop 20 which can be adjusted by hand or mechanically or electronically. After tensioning, the wooden scantling is cut to the desired length by the milling device 8. With the facilities 8, 9 and 13, in turn, all those machining operations are carried out that were previously carried out on one end of the wooden frame.

Während bei der Konterprofilierung von Teilen des Flügelrahmens die Fräswalze 17 zum Einsatz gelangt, wird dieser Bearbeitungsvorgang bei Teilen von Blendrahmen mit der Fräswalze 18 durchgeführt. Dies ist der Grund, weshalb insgesamt zwei Fräswalzen 17 bzw. 18 vorgesehen sind. Die beiden Fräswalzen 17 bzw. 18 können pneumatisch, hydraulisch oder aber auch mechanisch in die jeweilige Betriebsstellung bewegt werden.While the milling roller 17 is used in the counter-profiling of parts of the casement, this machining process is carried out with parts of the frame using the milling roller 18. This is the reason why a total of two milling drums 17 and 18 are provided. The two milling drums 17 and 18 can be moved pneumatically, hydraulically or else mechanically into the respective operating position.

Wenn der Werkstückträger 1 gegen den Puffer 19 anschlägt, wird ersterer stillgesetzt. Dann wird das an den beiden Stirnseiten in der gewünschten Form bearbeitete Werkstück 7 von der Spannvorrichtung 4 gelöst, um 90° entgegengesetzt dem Uhrzeigersinn von Hand verschwenkt und auf eine Transporteinrichtung 31 gelegt, welche das Werkstück 7 einer Einrichtung 21 zur Ausbildung des Längsprofils und einer Einrichtung 22 zur Ausbildung der Glashalteleiste des Kantels zuführt.If the workpiece carrier 1 strikes against the buffer 19, the former is stopped. Then the workpiece 7 machined on the two end faces in the desired shape is released from the clamping device 4, pivoted by 90 ° counterclockwise by hand and placed on a transport device 31, which the workpiece 7 a device 21 for forming the longitudinal profile and a device 22 leads to the formation of the glass holding strip of the cantilever.

Die Einrichtung 21 zur Ausbildung des Längsprofils des Kantels besteht dabei aus drei auf einer angetriebenen Spindel 23 getrennt angeordneten heb- und absenkbaren Fräswalzen 24 - 26, die von der zugeordneten Spindel 23 durch Lösen der Schraubenmutter 27 lösbar sind.The device 21 for forming the longitudinal profile of the scantling consists of three lifting and lowering milling drums 24 - 26 which are arranged separately on a driven spindle 23 and can be detached from the associated spindle 23 by loosening the screw nut 27.

Mit der Einrichtung 21 werden die Flügelprofile mit dem Glasfalzprofil mit integrierter Glasleiste gefräst, wobei die bei Bedarf zugeschaltete und abgesenkte Einrichtung 22 das Austrennen der Glashalteleiste übernimmt. Das obere Blendrahmenstück und die beiden aufrechten Blendrahmenflügelteile werden mit dem gleichen Innenlängsprofil versehen. Dieser Längsprofiliersatz befindet sich als weiteres Werkzeug auf der Spindel 23 der Einrichtung 21.The device 21 mills the sash profiles with the glazing rebate profile with an integrated glazing bead, the device 22, which is switched on and lowered if necessary, takes over the removal of the glazing bead. The upper frame part and the two upright frame wing parts are provided with the same inner longitudinal profile. This longitudinal profiling set is located as a further tool on the spindle 23 of the device 21.

In der Einrichtung 21 befinden sich die Fräswalzen 26 für das Flügellängsprofil und die Blendrahmenwalzen 24 und 25 für das Profilieren der Blendrahmenprofile, innen.In the device 21 are the milling rollers 26 for the longitudinal wing profile and the frame rollers 24 and 25 for profiling the frame profiles, inside.

Bekanntlich besteht ein Blend- oder Flügelrahmen aus zwei aufrechten und zwei querlaufenden Holzkanteln. Eingangs wurde die Bearbeitung der Werkstücke 7 beschrieben. Die aufrechten Fügeteile werden mittels der Fräseinrichtung 8 auf eine vorbestimmte Länge geschnitten. Der Werkstückträger 1 fährt in die Ausgangsposition zurück. Das Fügeteil wird entspannt, um 90° geschwenkt und mittels der Spannvorrichtung 4, parallel zur Anschlagkante des Werkstückträgers 1 erneut gespannt. Die Lage des Holzkantels verläuft nunmehr koaxial zur Vorschubrichtung des Werkstückträgers 1. Dieser Werkstückträger 1 fährt anschließend bis zur Bohreinrichtung 9, wo mittels des vorgewählten Bohrbildes mit den Bohrern 12 Sacklochbohrungen nunmehr senkrecht zum Faserverlauf des Werkstückes 7 eingebohrt werden. Diese vorgenannte Arbeitsoperation erfolgt jeweils am Anfang und Ende eines jeden aufrechten Holzkantels.As is known, a frame or sash consists of two upright and two transverse wooden scantlings. The machining of workpieces 7 was described at the beginning. The upright parts to be joined are cut to a predetermined length by means of the milling device 8. The workpiece carrier 1 moves back to the starting position. The part to be joined is relaxed, pivoted through 90 ° and clamped again by means of the clamping device 4, parallel to the stop edge of the workpiece holder 1. The position of the wooden frame now runs coaxially to the feed direction of the workpiece carrier 1. This workpiece carrier 1 then travels to the drilling device 9, where 12 blind holes are now drilled perpendicular to the grain of the workpiece 7 by means of the preselected drilling pattern with the drills. This aforementioned work operation takes place at the beginning and end of each upright wooden frame.

Bei geschoßhohem Blendrahmen können naturgemäß, je nach architektonischem Teilungsverhältnis des Elementes, Zwischenbohrpositionen angeordnet werden.In the case of a storey-high window frame, intermediate drilling positions can naturally be arranged, depending on the architectural division ratio of the element.

Nachdem die Fügeteile in der eingangs beschriebenen Art und Weise mit Längs- und Endprofilierungen versehen und zu Blend- und Flügelrahmen mittels Rahmenpresse und geeignetem Kleber stoffschlüssig verbunden wurden, kann die vorstehend beschriebene Vorrichtung außerordentlich einfach zu einer Rahmenumfräsmaschine ausgerüstet werden. Dabei wird der fahrbare Werkstückträger 1 als Werkstückauflage bis zur Achse A-A der Einrichtung 13 vorgefördert. Das obere Längsprofilierwerkzeug 17 wird gegen einen zweiten, im Gleichlauf arbeitenden Flügelumfräsprofiliersatz ausgetauscht. Um beim Umfräsen von Vollholz über Hirn keine Holzausbrüche zu erhalten, wird das Hirnholz im Gleichlauffräsen spanend abgetragen. Die Fräswalze 24 wird durch den Flügelumfrässatz 28 der Einrichtung 23 ausgetauscht. Er arbeitet im Gegenlauf und spant im Bereich der Längsprofilierung. Der im Gleichlauf wirkende Satz arbeitet in der Einrichtung 13 und wird pneumatisch oder hydraulisch als Eintauchfräsaggregat etwa 150 mm vor Rahmenende fliegend eingetaucht. Auf diese Art und Weise gelingt eine Flügelumfräsung nach Fig. 3 der Zeichnung.After the parts to be joined have been provided with longitudinal and end profiles in the manner described at the beginning and have been integrally connected to a frame and sash frame using a frame press and suitable adhesive, the device described above can be equipped extremely simply to form a frame milling machine. The mobile workpiece carrier 1 is advanced as a workpiece support up to the axis A-A of the device 13. The upper longitudinal profiling tool 17 is exchanged for a second, co-rotating wing profile profiling set. In order not to get any wood breakouts when milling solid wood over the brain, the end grain is machined in synchronous milling. The milling drum 24 is replaced by the wing milling set 28 of the device 23. It works in the opposite direction and cuts in the area of longitudinal profiling. The set working in synchronism works in the device 13 and is pneumatically or hydraulically immersed as a plunge milling unit about 150 mm before the end of the frame. In this way, a wing milling is possible according to FIG. 3 of the drawing.

In Figur 4 stellt das Blendrahmenprofil 29 den oberen und die beiden seitlichen Innenprofile des zugehörigen Blendrahmens dar. Dieses Innenprofil wird mit der Einrichtung 21 und der Blendrahmenfräswalzen 24 im Gegenlauffräsen hergestellt. Das zugehörige Konterprofil 30 wird mit der Fräseinrichtung 13 und der Fräswalze 18 durchgeführt. Die Fräswalze 25 stellt das Blendrahmenprofil innen unten dar.In Figure 4, the frame profile 29 represents the upper and the two lateral inner profiles of the associated frame. This inner profile is produced with the device 21 and the frame milling drum 24 in counter-milling. The associated counter profile 30 is carried out with the milling device 13 and the milling drum 18. The milling drum 25 provides the frame profile inside below.

Claims (6)

  1. Apparatus for machining jointing parts consisting of natural wood, in particular squared-timber pieces for frames and sashes of windows, composed of a clamping device (4) arranged on a workpiece carrier (1), and of an advancement device which is intended for the squared-timber piece and guides it past a milling device (8) for cutting to length, a milling device (13) for forming the mating profile, a milling device (21) for forming the longitudinal profile and a device (22) for forming the glazing bar of the squared-timber piece, said devices being located one after the other and there being arranged, between the milling device (8) for cutting to length and the milling device (13) for forming the mating profile, a drilling device (9) for drilling blind holes (10) into the end profiles of the squared-timber piece, characterized in that the various tools are arranged in an aligned row and the advancement device is subdivided into two devices following one after the other, the first advancement device being a workpiece carrier (1) which can be displaced along a guide (2) and has a bracing device (4, 5) and the second advancement device being a transporting path (31), with parallel stop strip, for the same advancement direction as the workpiece carrier (1), and the workpiece-carrier advancement serving for end machining and the transporting-path advancement serving for longitudinal machining.
  2. Apparatus according to Claim 1, characterized in that the drilling device (9) exhibits one or more drills (12) which can move into the operating position by means of compressed air.
  3. Apparatus according to Claim 1, characterized in that the milling device (8) for cutting the squared-timber piece to length is a circular saw which can be raised and lowered.
  4. Apparatus according to Claim 1, characterized in that the milling device (13) for forming the mating profile of the squared-timber piece exhibits two milling rolls (17, 18) which are arranged separately on a driven spindle (16) and can be raised and lowered.
  5. Apparatus according to Claim 1, characterized in that the device (21) for forming the longitudinal profile of the squared-timber piece exhibits three milling rolls (24-26) which are arranged separately on a driven spindle (23) and can be raised and lowered.
  6. Apparatus according to Claims 4 and 5, characterized in that the milling rolls (17, 18 and 24-26) can be released from the associated spindles (16 and 23).
EP19910104275 1990-05-10 1991-03-20 Apparatus for machining joint elements from natural wood, particularly for window frames and window sash elements Expired - Lifetime EP0455962B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19904014921 DE4014921C1 (en) 1990-05-10 1990-05-10
DE4014921 1990-05-10

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EP0455962A2 EP0455962A2 (en) 1991-11-13
EP0455962A3 EP0455962A3 (en) 1992-04-08
EP0455962B1 true EP0455962B1 (en) 1994-07-06

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DE (1) DE4014921C1 (en)
ES (1) ES2055481T3 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1260244B (en) * 1992-12-23 1996-04-02 Paride Sacchi MACHINE FOR THE PROCESSING OF WOOD PIECES.
DE19751033A1 (en) * 1997-11-19 1999-05-20 Weinig Michael Ag Method for processing workpieces made of wood, plastic and the like on a moulder and moulder for performing such a method
FR2854343A1 (en) * 2003-04-29 2004-11-05 Mecanic Worker Timber window frame manufacturing procedure uses glued and screwed components shaped by computer-aided tools
ITBO20060360A1 (en) * 2006-05-12 2007-11-13 Scm Group Spa TENONING MACHINE.

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2907304A1 (en) * 1979-02-24 1980-08-28 Paul Hoffmeister Cutting double ended wooden workpiece profiles - involves two lengthways and cross movements to and through cutting tool
BR8003369A (en) * 1979-10-25 1981-04-28 Scm Finanz MACHINES FOR MACHINING PANELS, BOARDS, PROFILES OR SIMILAR, IN PARTICULAR FOR WOOD AND ITS DERIVATIVES
DE3522278A1 (en) * 1984-12-08 1986-06-12 Erwin 7261 Gechingen Jenkner METHOD FOR THE PRODUCTION OF PLATE-SHAPED WORKPIECES HAVING CONSTRUCTION HOLES, IN PARTICULAR FROM WOOD OR WOOD-LIKE MATERIAL, AND A DEVICE FOR CARRYING OUT THE METHOD
DE3533404A1 (en) * 1985-09-19 1987-03-26 Okoma Maschf Gmbh Woodworking machine
GB2202790B (en) * 1987-03-04 1991-01-30 Wadkin Public Ltd Co Improved spindle moulder
DE3741171A1 (en) * 1987-12-04 1989-06-15 Hans Kuehl CARPENTRY TUNING MACHINE

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EP0455962A2 (en) 1991-11-13
ES2055481T3 (en) 1994-08-16
DE4014921C1 (en) 1991-10-10
EP0455962A3 (en) 1992-04-08

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