EP3372320B1 - Device and method for the preparation of meandering cooling bodies - Google Patents

Device and method for the preparation of meandering cooling bodies Download PDF

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Publication number
EP3372320B1
EP3372320B1 EP18151652.7A EP18151652A EP3372320B1 EP 3372320 B1 EP3372320 B1 EP 3372320B1 EP 18151652 A EP18151652 A EP 18151652A EP 3372320 B1 EP3372320 B1 EP 3372320B1
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EP
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Prior art keywords
tool carrier
tool
bending
slides
guided
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EP18151652.7A
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German (de)
French (fr)
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EP3372320A1 (en
Inventor
Manuel Burger
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Familie Burger GbR
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Familie Burger GbR
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D13/00—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form
    • B21D13/02—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form by pressing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
    • B21D11/06—Bending into helical or spiral form; Forming a succession of return bends, e.g. serpentine form
    • B21D11/07—Making serpentine-shaped articles by bending essentially in one plane

Definitions

  • the invention relates to a device and a method for producing meandering heat sinks.
  • Heat sinks usually consist of a material with good thermal conductivity and often have a meandering shape to increase the heat-dissipating surface. Such heat sinks are currently made of die-cast aluminum. However, the production of such die-cast heat sinks is relatively slow, inflexible and expensive.
  • the device contains a first tool carrier, a second tool carrier that can be displaced relative to the first tool carrier via a drive in the direction of a travel axis, a holder arranged between the first tool carrier and the second tool carrier for guiding the sheet-like material, and a plurality of tools on the first and second tool carriers at right angles to the travel axis slidably guided folding tools, which are moved together when the second tool carrier is displaced in the direction of the first tool carrier at right angles to the axis of travel of the tool carrier.
  • the object of the invention is to provide a device and a method for producing meandering heat sinks that allow flexible and cost-effective production with high precision.
  • the device according to the invention contains a first tool carrier, one that can be displaced relative to the first tool carrier via a drive in the direction of a travel axis second tool carrier, a holder arranged between the first tool carrier and the second tool carrier for accommodating a blank and several bending punches which are guided on the first and second tool carrier so as to be displaceable at right angles to the traversing axis and which, when the second tool carrier is displaced in the direction of the first tool carrier, are activated by drives at right angles to the Traversing axis of the tool carrier are moved together.
  • meandering heat sinks can be produced flexibly, quickly and precisely from a printed circuit board cut from a strip material.
  • the circuit board separated from the metal strip for example, is folded together by the device in the manner of an accordion, with relative movements between the strip material and the bending stamps being avoided by the multi-axial movements of the bending stamps.
  • the simultaneity of all bending movements also enables a high production speed.
  • a wide variety of heat sinks can thus be manufactured in an effective and cost-effective manner with high productivity and great accuracy.
  • Between the first tool carrier and the second tool carrier are arranged two rails which can be moved relative to one another in the direction of the axis of travel of the second tool carrier and have holding devices which can be displaced on them at right angles to the axis of travel for holding the ends of the board. This allows the board ends to be gripped and moved to their end position on two axes.
  • the bending punches are arranged on tool slides which are displaceably guided on the tool carriers via guide rails that are parallel to one another.
  • Two tool slides, each with a bending punch, are expediently guided in a displaceable manner on the guide rails.
  • the tool slides are preferably displaced by the drives in such a way that they simultaneously move together when the second tool carrier moves in the direction of the first tool carrier.
  • the drives for shifting the tool slides, which are each guided displaceably on a guide rail can expediently be designed as a belt drive with an endless belt guided via a drive roller and a deflection roller, with one of the tool slides on an upper strand and the other tool slide on a lower strand of the endless belt is attached.
  • the tool slides which are movably guided on a guide rail, can be moved by a common motor.
  • the tool slides could also be moved along the guide rails by a chain drive, by individual drives or the like.
  • the holding devices can be formed by a counter-holder that is guided in a displaceable manner on one rail and a punching and holding stamp that is guided in a displaceable manner on the other rail.
  • the counterholder and the punching and holding punches can likewise be arranged on two tool carriages which are guided over guide rails and can be moved in relation to one another, in the same way as the bending punches.
  • a first processing module designed as a cutting and bending module and a second processing module designed as a bending module can be fastened to the holder arranged between the first tool carrier and the second tool carrier.
  • the method according to the invention is characterized in that the heat sink is bent from a circuit board in one working stroke by a plurality of bending punches that can be moved in two axes perpendicular to one another, and the ends of the circuit board are gripped by a holding device that can be moved in two axes that are perpendicular to one another and are moved to their end position.
  • the heat sink can be calibrated with its contact surfaces after bending by pressing against the bending die.
  • FIG. 1 and 2 is a device 1 for the production of an in figure 3 illustrated meandering heat sink 2 shown from a separated from a band material circuit board 3.
  • the device 1 has a first tool carrier 4 and a second tool carrier 6 which can be moved transversely thereto in the direction of a travel axis 5 .
  • the traversing axis 5 is designed as a vertical axis.
  • the in the figures 1 and 2 The first tool carrier 4 arranged at the bottom is stationary, while the second tool carrier 6 arranged at the top can be moved in the direction of the vertical travel axis 5 with the aid of a drive 7 . about in figure 1 recognizable guides 8, the second tool carrier 6 is slidably guided on a frame, not shown here.
  • the first tool carrier 4, which is designed to be stationary here, could also be moved in the direction of the travel axis 5 if required.
  • the two tool carriers 4 and 5 arranged vertically here could also be arranged horizontally and moved along a horizontal axis of travel.
  • a stationary rail-shaped holder 9 is arranged between the two plate-shaped tool carriers 4 and 6 .
  • a guide 10 for the strip material, a first processing module 11 embodied as a cutting and bending module, and a second processing module 12 embodied as a bending module are fastened to the rail-shaped holder 9 .
  • This first rail 13 can be displaced in the direction of the displacement axis 5 via a drive 14 .
  • Also arranged between the second tool carrier 6 and the rail-shaped holder 9 is a second rail 15 which is parallel to the holder 9 and can be displaced in relation to it.
  • the second rail 15 can be displaced in the direction of the displacement axis 5 via a drive 16 .
  • a plurality of bending punches 17 and 18 arranged next to one another are displaceably guided at right angles to the traversing axis 5.
  • the bending punches 17 and 18 are seated on tool slides 19 and 20, respectively, which are displaceably guided on mutually parallel guide rails 21 and 22, respectively.
  • four mutually parallel and horizontally extending guide rails 21 are attached to the first tool carrier 4 arranged below.
  • Four parallel and horizontally extending guide rails 22 are also provided on the second tool carrier 6 arranged at the top.
  • two tool carriages 19 and 20, respectively are displaceably guided for one bending punch 17 and 18, respectively.
  • the bending punches 17 and 18, which can be moved via the tool slides 19 and 20, are moved via drives 24 in such a way that they move together transversely to the travel axis 5 in the direction of the central bending punch 23 when the second tool carrier 6 moves towards the first tool carrier 4 in the lifting direction.
  • the bending punches 17 and 18, which can be moved via the tool slides 19 and 20, will also move apart again into their starting position.
  • the bending punches 17 and 18 guided on the tool carriages 19 and 20 therefore carry out controlled movements at right angles to the travel axis 5 of the second tool carrier 6 .
  • the two tool carriages 19 and 20 guided on the respective guide rails 21 and 22 of the first and second tool carriers 4 and 6 are simultaneously moved together or apart by the drives 24 together with the bending punches 17 and 18 attached thereto.
  • the drives 24 are designed as belt drives with an endless belt 27 guided over a drive roller 25 and a deflection roller 26 .
  • One of the tool slides 19 or 20 arranged on each guide rail 21 or 22 is fastened to the upper run of the endless belt 27 and the other tool slide 19 or 20 to the lower run of the endless belt 27, so that the two tool slides 19 or 20 upon rotation of the drive roller 25 in one Direction are moved together and moved apart when reversing the direction of rotation of the drive roller 25.
  • the drive rollers 25 are each fitted over an in figure 1 Motor 28 shown driven.
  • two tool slides 30 and 31 are also slidably guided on the first rail 13 and the second rail 15 on a respective guide rail 32 and 33, respectively.
  • the two tool slides 30 and 31 guided on the respective guide rails 32 and 33 are also moved in opposite directions via a drive 38 designed as a belt drive with a motor 34 and an endless belt 37 guided via a drive roller 35 and a deflection roller 36.
  • a drive 38 designed as a belt drive with a motor 34 and an endless belt 37 guided via a drive roller 35 and a deflection roller 36.
  • On the two tool slides 30 are in figure 4 counterholder 39 shown and on the two tool slides 31 in figure 4 Stamping and holding stamp 40 shown attached.
  • gripping device 41 is arranged.
  • a finished heat sink 3 can be pulled out of the processing zone and deposited in an inclined discharge chute 43 for transport.
  • a strip material previously provided with several lateral bevels 44 is guided via the guide 10 into an in figure 4 shown processing position transported. There is one in figure 1
  • the guide rail 45 shown is still in an advanced position between the spaced-apart bending punches 17 and 18.
  • one end of the strip material is separated on the first processing module 11, which is designed as a cutting and bending module, between a lower part 46 and an upper cutting punch 47 to form the blank 3 .
  • the two punching and holding stamps 40 are then moved against the counterholder 39 by a downward movement of the second rail 15 arranged at the top, as a result of which the circuit board 3, which has been separated from the strip material, is provided with a hole on both sides and is held. Also, the two ends of the previously severed Blank 3 bent downwards by a bending punch 48 in the first processing module 11 designed as a cutting and bending module and a bending punch 49 in the second processing module 12 designed as a bending module. Furthermore, after the upper guide rail 45 has been retracted, the upper bending punches 18 are moved downwards against the blank 3 by a downward movement of the second tool carrier 6 arranged at the top.
  • both the bending punches 17 and 18 and the counterholder 39 with the punching and holding punches 40 perpendicular to the traversing axis 5 in the direction of the central Bending die 23 moves.
  • the circuit board 3 is in accordance with figure 6 first bent on the lower bending dies 17 protruding further upwards.
  • the blank 3 is then shown in accordance with figure 7 and figure 8 also bent over the lower bending stamp 18 and in the manner of an accordion up to the in figure 9 final shape shown folded.
  • the heat sink 2 is then calibrated with its contact surfaces by pressing against the bending dies 17 and 18 .

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Description

Die Erfindung betrifft eine Vorrichtung und ein Verfahren zur Herstellung mäanderförmiger Kühlkörper.The invention relates to a device and a method for producing meandering heat sinks.

Kühlkörper bestehen üblicherweise aus einem gut wärmeleitfähigen Material und weisen zur Vergrößerung der wärmeabgebenden Oberfläche vielfach einen mäanderförmigen Verlauf auf. Solche Kühlkörper werden derzeit aus Aluminium-Druckguss hergestellt. Allerdings ist die Produktion solcher Druckgusskühlkörper relativ langsam, unflexibel und teuer.Heat sinks usually consist of a material with good thermal conductivity and often have a meandering shape to increase the heat-dissipating surface. Such heat sinks are currently made of die-cast aluminum. However, the production of such die-cast heat sinks is relatively slow, inflexible and expensive.

Aus der EP 0 913 251 A1 ist eine Vorrichtung und ein Verfahren zum Falten eines blattförmigen Materials in einen mäanderförmigen Körper bekannt. Die Vorrichtung enthält einen ersten Werkzeugträger, einen relativ zum ersten Werkzeugträger über einen Antrieb in Richtung einer Verfahrachse verschiebbaren zweiten Werkzeugträger, eine zwischen dem ersten Werkzeugträger und dem zweiten Werkzeugträger angeordnete Halterung zur Führung des blattförmigen Materials und mehrere an dem ersten und zweiten Werkzeugträger rechtwinklig zur Verfahrachse verschiebbar geführte Faltwerkzeuge, die bei der Verschiebung des zweiten Werkzeugträgers in Richtung des ersten Werkzeugträgers rechtwinklig zur Verfahrachse des Werkzeugträgers zusammenbewegt werden.From the EP 0 913 251 A1 an apparatus and a method for folding a sheet-like material into a meander-shaped body is known. The device contains a first tool carrier, a second tool carrier that can be displaced relative to the first tool carrier via a drive in the direction of a travel axis, a holder arranged between the first tool carrier and the second tool carrier for guiding the sheet-like material, and a plurality of tools on the first and second tool carriers at right angles to the travel axis slidably guided folding tools, which are moved together when the second tool carrier is displaced in the direction of the first tool carrier at right angles to the axis of travel of the tool carrier.

Aufgabe der Erfindung ist es, eine Vorrichtung und ein Verfahren zur Herstellung mäanderförmiger Kühlkörper zu schaffen, die eine flexible und kostengünstige Fertigung mit hoher Präzision ermöglichen.The object of the invention is to provide a device and a method for producing meandering heat sinks that allow flexible and cost-effective production with high precision.

Diese Aufgabe wird durch eine Vorrichtung mit den Merkmalen des Anspruchs 1 und durch ein Verfahren mir den Merkmalen des Anspruchs 9 gelöst. Zweckmäßige Ausgestaltungen und vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen angegeben.This object is achieved by a device having the features of claim 1 and by a method having the features of claim 9 . Expedient configurations and advantageous developments of the invention are specified in the dependent claims.

Die erfindungsgemäße Vorrichtung enthält einen ersten Werkzeugträger, einen relativ zum ersten Werkzeugträger über einen Antrieb in Richtung einer Verfahrachse verschiebbaren zweiten Werkzeugträger, eine zwischen dem ersten Werkzeugträger und dem zweiten Werkzeugträger angeordnete Halterung für die Aufnahme einer Platine und mehrere an dem ersten und zweiten Werkzeugträger rechtwinklig zur Verfahrachse verschiebbar geführte Biegestempel, die bei der Verschiebung des zweiten Werkzeugträgers in Richtung des ersten Werkzeugträgers durch Antriebe rechtwinklig zur Verfahrachse des Werkzeugträgers zusammenbewegt werden. Mit Hilfe einer derartigen Vorrichtung können mäanderförmige Kühlkörper aus einer von einem Bandmaterial abgetrennten Platine flexibel, schnell und präzise hergestellt werden. Die z.B. von Metallband abgetrennte Platine wird durch die Vorrichtung in Art einer Ziehharmonika zusammengefaltet, wobei durch die mehrachsigen Bewegungen der Biegestempel Relativbewegungen zwischen dem Bandmaterial und den Biegestempeln vermieden werden. Durch die Gleichzeitigkeit aller Biegebewegungen wird außerdem eine hohe Produktionsgeschwindigkeit ermöglicht. Kühlkörper der verschiedensten Art können so auf effektive und kostengünstige Weise mit hoher Produktivität und großer Genauigkeit gefertigt werden. Zwischen dem ersten Werkzeugträger und dem zweiten Werkzeugträger sind zwei in Richtung der Verfahrachse des zweiten Werkzeugträgers gegeneinander verfahrbare Schienen mit daran rechtwinklig zur Verfahrachse verschiebbaren Halteeinrichtungen zur Halterung der Enden der Platine angeordnet sein. Dadurch können die Platinenenden gefasst und jeweils zweiachsig in deren Endposition bewegt werden.The device according to the invention contains a first tool carrier, one that can be displaced relative to the first tool carrier via a drive in the direction of a travel axis second tool carrier, a holder arranged between the first tool carrier and the second tool carrier for accommodating a blank and several bending punches which are guided on the first and second tool carrier so as to be displaceable at right angles to the traversing axis and which, when the second tool carrier is displaced in the direction of the first tool carrier, are activated by drives at right angles to the Traversing axis of the tool carrier are moved together. With the help of such a device, meandering heat sinks can be produced flexibly, quickly and precisely from a printed circuit board cut from a strip material. The circuit board separated from the metal strip, for example, is folded together by the device in the manner of an accordion, with relative movements between the strip material and the bending stamps being avoided by the multi-axial movements of the bending stamps. The simultaneity of all bending movements also enables a high production speed. A wide variety of heat sinks can thus be manufactured in an effective and cost-effective manner with high productivity and great accuracy. Between the first tool carrier and the second tool carrier are arranged two rails which can be moved relative to one another in the direction of the axis of travel of the second tool carrier and have holding devices which can be displaced on them at right angles to the axis of travel for holding the ends of the board. This allows the board ends to be gripped and moved to their end position on two axes.

In einer besonders vorteilhaften Ausführung sind die Biegestempel an Werkzeugschlitten angeordnet, die an den Werkzeugträgern über zueinander parallele Führungsschienen verschiebbar geführt sind. Dadurch kann die Vorrichtung einfach umgerüstet und schnell an unterschiedliche Anforderungen angepasst werden.In a particularly advantageous embodiment, the bending punches are arranged on tool slides which are displaceably guided on the tool carriers via guide rails that are parallel to one another. As a result, the device can be easily converted and quickly adapted to different requirements.

Zweckmäßigerweise sind an den Führungsschienen jeweils zwei Werkzeugschlitten mit jeweils einem Biegestempel verschiebbar geführt.Two tool slides, each with a bending punch, are expediently guided in a displaceable manner on the guide rails.

Die an jeweils einer Führungsschiene verschiebbar geführten Werkzeugschlitten werden durch die Antriebe vorzugsweise so verschoben, dass sie bei der Bewegung des zweiten Werkzeugträgers in Richtung des ersten Werkzeugträgers gleichzeitig zusammenfahren. Die Antriebe zur Verschiebung der an jeweils einer Führungsschiene verschiebbar geführten Werkzeugschlitten können zweckmäßigerweise als Riementrieb mit einem über eine Antriebsrolle und eine Umlenkrolle geführten Endlosriemen ausgebildet sein, wobei einer der Werkzeugschlitten an einem oberen Trum und der andere Werkzeugschlitten an einem unteren Trum des Endlosriemens befestigt ist. Dadurch können die an einer Führungsschiene verschiebbar geführten Werkzeugschlitten durch einen gemeinsamen Motor verschoben werden. Die Werkzeugschlitten könnten aber auch durch einen Kettenantrieb, durch Einzelantriebe oder dgl. entlang der Führungsschienen bewegt werden.The tool slides, each of which is displaceably guided on a guide rail, are preferably displaced by the drives in such a way that they simultaneously move together when the second tool carrier moves in the direction of the first tool carrier. The drives for shifting the tool slides, which are each guided displaceably on a guide rail, can expediently be designed as a belt drive with an endless belt guided via a drive roller and a deflection roller, with one of the tool slides on an upper strand and the other tool slide on a lower strand of the endless belt is attached. As a result, the tool slides, which are movably guided on a guide rail, can be moved by a common motor. However, the tool slides could also be moved along the guide rails by a chain drive, by individual drives or the like.

Die Haltereinrichtungen können durch einen an der einen Schiene verschiebbar geführten Gegenhalter und einen an der anderen Schiene verschiebbar geführten Stanz- und Haltestempel gebildet sein. Die Gegenhalter und die Stanz- und Haltestempel können entsprechend der Biegestempel ebenfalls an zwei über Führungsschienen geführten und gegeneinander verfahrbaren Werkzeugschlitten angeordnet sein.The holding devices can be formed by a counter-holder that is guided in a displaceable manner on one rail and a punching and holding stamp that is guided in a displaceable manner on the other rail. The counterholder and the punching and holding punches can likewise be arranged on two tool carriages which are guided over guide rails and can be moved in relation to one another, in the same way as the bending punches.

An der zwischen dem ersten Werkzeugträger und dem zweiten Werkzeugträger angeordneten Halterung kann ein als ein als Schneid- und Biegemodul ausgebildetes erstes Bearbeitungsmodul und ein als Biegemodul ausgeführtes zweites Bearbeitungsmodul befestigt sein.A first processing module designed as a cutting and bending module and a second processing module designed as a bending module can be fastened to the holder arranged between the first tool carrier and the second tool carrier.

Das erfindungsgemäße Verfahren zeichnet sich dadurch aus, dass der Kühlkörper aus einer Platine in einem Arbeitshub durch mehrere in zwei zueinander senkrechten Achsen bewegbare Biegestempel gebogen wird und die Enden der Platine von einer in zwei zueinander senkrechten Achsen bewegbaren Halteeinrichtung gefasst und in ihre Endposition bewegt werden.The method according to the invention is characterized in that the heat sink is bent from a circuit board in one working stroke by a plurality of bending punches that can be moved in two axes perpendicular to one another, and the ends of the circuit board are gripped by a holding device that can be moved in two axes that are perpendicular to one another and are moved to their end position.

Außerdem kann der Kühlkörper mit seinen Kontaktflächen nach dem Biegen durch Anpressen gegen die Biegestempel kalibriert werden.In addition, the heat sink can be calibrated with its contact surfaces after bending by pressing against the bending die.

Weitere Besonderheiten und Vorzüge der Erfindung ergeben sich aus der folgenden Beschreibung eines bevorzugten Ausführungsbeispiels anhand der Zeichnung. Es zeigen:

Fig. 1
eine Vorrichtung zur Herstellung eines mäanderförmigen Kühlkörpers aus einem Bandmaterial in einer Perspektive;
Fig. 2
die in Figur 1 gezeigte Vorrichtung in einer Vorderansicht;
Fig. 3
einen mäanderförmigen Kühlkörper in einer Perspektive und
Fig. 4 bis 9
einen Verfahrensablauf bei der Herstellung eines in Figur 3 gezeigten Kühlkörpers.
Further special features and advantages of the invention result from the following description of a preferred exemplary embodiment with reference to the drawing. Show it:
1
a perspective view of a device for producing a meander-shaped heat sink from a band material;
2
in the figure 1 device shown in a front view;
3
a meandering heatsink in a perspective and
Figures 4 to 9
a process flow in the manufacture of an in figure 3 heatsink shown.

In den Figuren 1 und 2 ist eine Vorrichtung 1 zur Herstellung eines in Figur 3 dargestellten mäanderförmigen Kühlkörpers 2 aus einer von einem Bandmaterial abgetrennten Platine 3 gezeigt. Die Vorrichtung 1 weist einen ersten Werkzeugträger 4 und einen quer zu diesem in Richtung einer Verfahrachse 5 beweglichen zweiten Werkzeugträger 6 auf. Bei der gezeigten Ausführung ist die Verfahrachse 5 als Vertikalachse ausgeführt. Der in den Figuren 1 und 2 unten angeordnete erste Werkzeugträger 4 ist stationär angeordnet, während der oben angeordnete zweite Werkzeugträger 6 mit Hilfe eines Antriebs 7 in Richtung der vertikalen Verfahrachse 5 bewegt werden kann. Über in Figur 1 erkennbare Führungen 8 ist der zweite Werkzeugträger 6 an einem hier nicht gezeigten Gestell verschiebbar geführt. Der hier stationär ausgebildete erste Werkzeugträger 4 könnte bei Bedarf ebenfalls in Richtung der Verfahrachse 5 bewegt werden. Außerdem könnten die beiden hier vertikal angeordneten Werkzeugträger 4 und 5 auch horizontal angeordnet sein und entlang einer horizontalen Verfahrachse bewegt werden.In the figures 1 and 2 is a device 1 for the production of an in figure 3 illustrated meandering heat sink 2 shown from a separated from a band material circuit board 3. The device 1 has a first tool carrier 4 and a second tool carrier 6 which can be moved transversely thereto in the direction of a travel axis 5 . In the embodiment shown, the traversing axis 5 is designed as a vertical axis. The in the figures 1 and 2 The first tool carrier 4 arranged at the bottom is stationary, while the second tool carrier 6 arranged at the top can be moved in the direction of the vertical travel axis 5 with the aid of a drive 7 . about in figure 1 recognizable guides 8, the second tool carrier 6 is slidably guided on a frame, not shown here. The first tool carrier 4, which is designed to be stationary here, could also be moved in the direction of the travel axis 5 if required. In addition, the two tool carriers 4 and 5 arranged vertically here could also be arranged horizontally and moved along a horizontal axis of travel.

Wie besonders aus Figur 2 hervorgeht, ist zwischen den beiden plattenförmig ausgebildeten Werkzeugträgern 4 und 6 eine stationäre schienenförmige Halterung 9 angeordnet. An der schienenförmigen Halterung 9 sind eine Führung 10 für das Bandmaterial, ein als Schneid- und Biegemodul ausgebildetes erstes Bearbeitungsmodul 11 und ein als Biegemodul ausgeführtes zweites Bearbeitungsmodul 12 befestigt. Zwischen dem ersten Werkzeugträger 4 und der schienenförmigen Halterung 9 ist ein eine zu der Halterung 9 parallele und gegenüber der Halterung 9 verschiebbare erste Schiene 13 angeordnet. Diese erste Schiene 13 ist über einen Antrieb 14 in Richtung der Verfahrachse 5 verschiebbar. Zwischen dem zweiten Werkzeugträger 6 und der schienenförmigen Halterung 9 ist außerdem eine zu der Halterung 9 parallele und gegenüber dieser verschiebbare zweite Schiene 15 angeordnet. Die zweite Schiene 15 ist über einen Antrieb 16 in Richtung der Verfahrachse 5 verschiebbar.How special figure 2 shows, a stationary rail-shaped holder 9 is arranged between the two plate-shaped tool carriers 4 and 6 . A guide 10 for the strip material, a first processing module 11 embodied as a cutting and bending module, and a second processing module 12 embodied as a bending module are fastened to the rail-shaped holder 9 . Between the first tool carrier 4 and the rail-shaped mount 9 there is a first rail 13 parallel to the mount 9 and displaceable relative to the mount 9 . This first rail 13 can be displaced in the direction of the displacement axis 5 via a drive 14 . Also arranged between the second tool carrier 6 and the rail-shaped holder 9 is a second rail 15 which is parallel to the holder 9 and can be displaced in relation to it. The second rail 15 can be displaced in the direction of the displacement axis 5 via a drive 16 .

An den beiden plattenförmigen Werkzeugträgern 4 und 6 sind mehrere nebeneinander angeordnete Biegestempel 17 bzw. 18 rechtwinklig zur Verfahrachse 5 verschiebbar geführt. Die Biegestempel 17 und 18 sitzen hierzu an Werkzeugschlitten 19 bzw. 20, die auf zueinander parallelen Führungsschienen 21 bzw. 22 verschiebbar geführt sind. Bei der gezeigten Ausführung sind an dem unten angeordneten ersten Werkzeugträger 4 vier zueinander parallele und horizontal verlaufende Führungsschienen 21 befestigt. An dem oben angeordneten zweiten Werkzeugträger 6 sind ebenfalls vier zueinander parallele und horizontal verlaufende Führungsschienen 22 vorgesehen. An den horizontal angeordneten Führungsschienen 21 und 22 sind jeweils zwei Werkzeugschlitten 19 bzw. 20 für jeweils einen Biegestempel 17 bzw. 18 verschiebbar geführt.On the two plate-shaped tool carriers 4 and 6, a plurality of bending punches 17 and 18 arranged next to one another are displaceably guided at right angles to the traversing axis 5. For this purpose, the bending punches 17 and 18 are seated on tool slides 19 and 20, respectively, which are displaceably guided on mutually parallel guide rails 21 and 22, respectively. In the shown embodiment four mutually parallel and horizontally extending guide rails 21 are attached to the first tool carrier 4 arranged below. Four parallel and horizontally extending guide rails 22 are also provided on the second tool carrier 6 arranged at the top. On the horizontally arranged guide rails 21 and 22, two tool carriages 19 and 20, respectively, are displaceably guided for one bending punch 17 and 18, respectively.

Bei der gezeigten Ausführung sind nur die an den drei oberen Führungsschienen 21 des stationären ersten Werkzeugträgers 4 geführten Werkzeugsschlitten 19 mit Biegestempeln 17 bestückt. An dem oben angeordneten zweiten Werkzeugträger 6 sind nur die an den drei unteren Führungsschienen 22 geführten Werkzeugsschlitten 20 mit Biegestempeln 18 bestückt. An dem in Richtung der Verfahrachse 5 verschiebbaren zweiten Werkzeugträger 6 ist ferner ein zentraler Biegestempel 23 befestigt, der nicht quer zur Verfahrachse 5 verschiebbar ist.In the embodiment shown, only the tool slides 19 guided on the three upper guide rails 21 of the stationary first tool carrier 4 are equipped with bending punches 17 . Only the tool slides 20 guided on the three lower guide rails 22 are fitted with bending punches 18 on the second tool carrier 6 arranged at the top. A central bending punch 23 which cannot be displaced transversely to the displacement axis 5 is also fastened to the second tool carrier 6 which can be displaced in the direction of the displacement axis 5 .

Die über die Werkzeugschlitten 19 und 20 verschiebbaren Biegestempel 17 und 18 werden über Antriebe 24 so verschoben, dass sie quer zur Verfahrachse 5 in Richtung des zentralen Biegestempels 23 zusammenfahren, wenn sich der zweite Werkzeugträger 6 in Hubrichtung auf den ersten Werkzeugträger 4 zubewegt. Wenn der zweite Werkzeugträger 6 dann wieder in eine angehobene Ausgangsstellung zurückgefahren ist, werden auch die über die Werkzeugschlitten 19 und 20 verschiebbaren Biegestempel 17 und 18 wieder in ihre Ausgangsstellung auseinanderfahren. Die an den Werkzeugschlitten 19 bzw. 20 geführten Biegestempel 17 und 18 führen also gesteuerte Bewegungen rechtwinklig zur Verfahrachse 5 des zweiten Werkzeugträgers 6 aus.The bending punches 17 and 18, which can be moved via the tool slides 19 and 20, are moved via drives 24 in such a way that they move together transversely to the travel axis 5 in the direction of the central bending punch 23 when the second tool carrier 6 moves towards the first tool carrier 4 in the lifting direction. When the second tool carrier 6 is then moved back into a raised starting position, the bending punches 17 and 18, which can be moved via the tool slides 19 and 20, will also move apart again into their starting position. The bending punches 17 and 18 guided on the tool carriages 19 and 20 therefore carry out controlled movements at right angles to the travel axis 5 of the second tool carrier 6 .

Über die Antriebe 24 werden die beiden an den jeweiligen Führungsschienen 21 und 22 des ersten und zweiten Werkzeugträger 4 bzw. 6 geführten Werkzeugschlitten 19 und 20 zusammen mit den daran befestigten Biegestempeln 17 und 18 gleichzeitig zusammen- oder auseinanderbewegt. In der gezeigten Ausführung sind die Antriebe 24 als Riementrieb mit einem über ein Antriebsrolle 25 und eine Umlenkrolle 26 geführten Endlosriemen 27 ausgeführt. Einer der auf jeder Führungsschiene 21 bzw. 22 angeordneten Werkzeugschlitten 19 bzw. 20 ist dabei an dem oberen Trum des Endlosriemens 27 und der andere Werkzeugschlitten 19 bzw. 20 an dem unteren Trum des Endlosriemens 27 befestigt, so dass die beiden Werkzeugschlitten 19 bzw. 20 bei der Drehung der Antriebsrolle 25 in der einen Richtung zusammengefahren und bei der Umkehrung der Drehrichtung der Antriebsrolle 25 auseinander gefahren werden. Die Antriebsrollen 25 werden jeweils über einem in Figur 1 gezeigten Motor 28 angetrieben.The two tool carriages 19 and 20 guided on the respective guide rails 21 and 22 of the first and second tool carriers 4 and 6 are simultaneously moved together or apart by the drives 24 together with the bending punches 17 and 18 attached thereto. In the embodiment shown, the drives 24 are designed as belt drives with an endless belt 27 guided over a drive roller 25 and a deflection roller 26 . One of the tool slides 19 or 20 arranged on each guide rail 21 or 22 is fastened to the upper run of the endless belt 27 and the other tool slide 19 or 20 to the lower run of the endless belt 27, so that the two tool slides 19 or 20 upon rotation of the drive roller 25 in one Direction are moved together and moved apart when reversing the direction of rotation of the drive roller 25. The drive rollers 25 are each fitted over an in figure 1 Motor 28 shown driven.

Wie aus Figur 2 hervorgeht, sind auch an der ersten Schiene 13 und der zweiten Schiene 15 jeweils zwei Werkzeugschlitten 30 und 31 an jeweils einer Führungsschiene 32 bzw. 33 verschiebbar geführt. Wie die Werkzeugschlitten 19 und 20 werden auch die beiden an den jeweiligen Führungsschienen 32 und 33 geführten Werkzeugschlitten 30 bzw. 31 über einen als Riemenantrieb mit einem Motor 34 und einem über ein Antriebsrolle 35 und eine Umlenkrolle 36 geführten Endlosriemen 37 ausgeführten Antrieb 38 gegensinnig verschoben. An den beiden Werkzeugschlitten 30 sind in Figur 4 gezeigte Gegenhalter 39 und an den beiden Werkzeugschlitten 31 in Figur 4 gezeigte Stanz- und Haltestempel 40 befestigt.How out figure 2 As can be seen, two tool slides 30 and 31 are also slidably guided on the first rail 13 and the second rail 15 on a respective guide rail 32 and 33, respectively. Like the tool slides 19 and 20, the two tool slides 30 and 31 guided on the respective guide rails 32 and 33 are also moved in opposite directions via a drive 38 designed as a belt drive with a motor 34 and an endless belt 37 guided via a drive roller 35 and a deflection roller 36. On the two tool slides 30 are in figure 4 counterholder 39 shown and on the two tool slides 31 in figure 4 Stamping and holding stamp 40 shown attached.

Zur Entnahme der fertig gebogenen Kühlkörper 3 ist an der Vorderseite der beiden Werkzeugträger 4 und 6 eine in Figur 1 gezeigte Greifeinrichtung 41 angeordnet. Durch die mittels eines Motors 42 horizontal verschiebbare Greifeinrichtung 41 kann ein fertig bearbeiteter Kühlkörper 3 aus der Bearbeitungszone herausgezogen und in einer schrägen Abführrinne 43 zum Abtransport abgelegt werden.To remove the finished, bent heat sink 3, there is an in figure 1 shown gripping device 41 is arranged. By means of a motor 42 horizontally displaceable gripping device 41, a finished heat sink 3 can be pulled out of the processing zone and deposited in an inclined discharge chute 43 for transport.

Anhand der Figuren 4 bis 11 wir im Folgenden das Verfahren zur Herstellung eines in Figur 3 gezeigten Kühlkörpers 2 unter Verwendung der zuvor beschriebenen Vorrichtung 1 erläutert.Based on figures 4 to 11 we below the process of making an in figure 3 shown heat sink 2 explained using the device 1 described above.

Zunächst wird ein zuvor mit mehreren seitlichen Abkantungen 44 versehenes Bandmaterial über die Führung 10 in eine in Figur 4 gezeigte Bearbeitungsposition transportiert. Dabei befindet sich eine in Figur 1 gezeigte Führungsschiene 45 noch in einer vorgeschobenen Stellung zwischen den voneinander beabstandeten Biegestempeln 17 und 18. Anschließend wird das eine Ende des Bandmaterials an dem als Schneid- und Biegemodul ausgebildeten ersten Bearbeitungsmodul 11 zwischen einem Unterteil 46 und einem oberen Schneidstempel 47 zur Bildung der Platine 3 getrennt.First, a strip material previously provided with several lateral bevels 44 is guided via the guide 10 into an in figure 4 shown processing position transported. There is one in figure 1 The guide rail 45 shown is still in an advanced position between the spaced-apart bending punches 17 and 18. Then one end of the strip material is separated on the first processing module 11, which is designed as a cutting and bending module, between a lower part 46 and an upper cutting punch 47 to form the blank 3 .

Gemäß Figur 5 werden dann durch eine Abwärtsbewegung der oben angeordneten zweiten Schiene 15 die beiden Stanz- und Haltestempel 40 gegen die Gegenhalter 39 verfahren, wodurch die vom Bandmaterial abgetrennte Platine 3 an beiden Seiten mit einem Loch versehen und gehalten wird. Außerdem werden die beiden Enden der zuvor abgetrennten Platine 3 durch einen Biegestempel 48 in dem als Schneid- und Biegemodul ausgebildeten ersten Bearbeitungsmodul 11 und einen Biegestempel 49 in dem als Biegemodul ausgeführten zweiten Bearbeitungsmodul 12 nach unten umgebogen. Ferner werden die oberen Biegestempel 18 nach dem Zurückfahren der oberen Führungsschiene 45 durch eine Abwärtsbewegung des oben angeordneten zweiten Werkzeugträgers 6 nach unten gegen die Platine 3 bewegt.According to figure 5 the two punching and holding stamps 40 are then moved against the counterholder 39 by a downward movement of the second rail 15 arranged at the top, as a result of which the circuit board 3, which has been separated from the strip material, is provided with a hole on both sides and is held. Also, the two ends of the previously severed Blank 3 bent downwards by a bending punch 48 in the first processing module 11 designed as a cutting and bending module and a bending punch 49 in the second processing module 12 designed as a bending module. Furthermore, after the upper guide rail 45 has been retracted, the upper bending punches 18 are moved downwards against the blank 3 by a downward movement of the second tool carrier 6 arranged at the top.

Sobald die oberen Biegestempel 18 zur Anlage an der Platine 3 gelangen, werden bei einer weiteren Abwärtsbewegung des oben angeordneten zweiten Werkzeugträgers 6 sowohl die Biegestempel 17 und 18 als auch die Gegenhalter 39 mit den Stanz- und Haltestempeln 40 senkrecht zur Verfahrachse 5 in Richtung des zentralen Biegestempels 23 bewegt. Dabei wird die Platine 3 gemäß Figur 6 zunächst an den weiter nach oben vorstehenden unteren Biegestempeln 17 gebogen.As soon as the upper bending punches 18 come into contact with the blank 3, with a further downward movement of the second tool carrier 6 arranged at the top, both the bending punches 17 and 18 and the counterholder 39 with the punching and holding punches 40 perpendicular to the traversing axis 5 in the direction of the central Bending die 23 moves. The circuit board 3 is in accordance with figure 6 first bent on the lower bending dies 17 protruding further upwards.

Durch weitere Abwärtsbewegung der oberen Biegestempel 18 und weitere Verschiebung sowohl der Biegestempel 17 und 18 als auch der Gegenhalter 39 und der Stanz- und Haltestempel 40 senkrecht zur Verfahrachse 5 in Richtung des zentralen Biegestempels 23 wird dann die Platine 3 gemäß Figur 7 und Figur 8 auch über die tiefer stehenden Biegestempel 18 gebogen und in Art einer Ziehharmonika bis in die in Figur 9 gezeigte Endform zusammengefaltet. Im zusammengefalteten Zustand wird der Kühlkörper 2 mit seinen Kontaktflächen durch Anpressen an die Biegestempel 17 und 18 dann noch kalibriert.By further downward movement of the upper bending punch 18 and further displacement of both the bending punch 17 and 18 and the counter-holder 39 and the punching and holding punch 40 perpendicular to the traversing axis 5 in the direction of the central bending punch 23, the blank 3 is then shown in accordance with figure 7 and figure 8 also bent over the lower bending stamp 18 and in the manner of an accordion up to the in figure 9 final shape shown folded. In the folded state, the heat sink 2 is then calibrated with its contact surfaces by pressing against the bending dies 17 and 18 .

Claims (10)

  1. Device (10) for manufacturing a meander-shaped heat sink (2) with a first tool carrier (4), a second tool carrier (6) displaceable in the direction of a displacement axis (5) relative to the first tool carrier (4) via a drive (7), a mounting (9) arranged between the first tool carrier (4) and the second tool carrier (6) for receiving a blank (3) and several bending punches (17, 18) guided displaceably at right-angles to the displacement axis (5) on the first and second tool carrier (4, 6) and which are moved together during displacement of the second tool carrier (6) in the direction of the first tool carrier (4) by drives (24) at right-angles to the displacement axis (5) of the tool carrier (6), characterised in that between the first tool carrier (4) and the second tool carrier (6), two rails (13, 15) movable against one another in the direction of the displacement axis (5) of the second tool carrier (6) are arranged with holding devices (39, 40) displaceable thereon at right-angles to the displacement axis (5) for mounting the ends of the blank (3).
  2. Device (1) according to claim 1, characterised in that the bending punches (17, 18) are arranged on tool slides (19, 20) which are guided displaceably on the tool carriers (4, 6) via guide rails (21, 22) parallel to one another.
  3. Device (1) according to claim 2, characterised in that respectively two tool slides (19, 20) with respectively one bending punch (17, 18) are guided displaceably on the guide rails (21, 22).
  4. Device (1) according to claim 2 or 3, characterised in that the tool slides (19, 20) guided displaceably on respectively one guide rail (21, 22) are displaced by the drives (24) so that they move together simultaneously when moving the second tool carrier (6) in the direction of the first tool carrier (4).
  5. Device (1) according to claim 4, characterised in that the drives (24) are designed to displace the tool slides (19, 20) guided displaceably on respectively one guide rail (21, 22) as a belt drive with a continuous belt (27) guided over a drive roller (25) and a deflection roller (26), wherein one of the tool slides (19, 20) is attached to an upper strand and the other tool slide (19, 20) to a lower strand of the continuous belt (27).
  6. Device (1) according to one of claims 1 to 5, characterised in that the holding devices (39, 40) are formed by a counter-holder (39) guided displaceably on the one rail (13) and a stamp and holding punch (40) guided displaceably on the other rail (15).
  7. Device (1) according to claim 6, characterised in that the counter-holders (39) and the stamp and holding punch (40) are arranged on two tool slides (30, 31) movable against one another and guided over guide rails (32, 33).
  8. Device (1) according to one of claims 1 to 7, characterised in that a first processing module (11) designed as a cutting and bending module and a second processing module (12) configured as a bending module are attached to the mounting (9) arranged between the first tool carrier (4) and the second tool carrier (6).
  9. Method for manufacturing a meander-shaped heat sink (2), in which the heat sink (2) is bent from a blank (3) in one working stroke by several bending punches (17, 18) movable in two axes perpendicular to one another, characterised in that the ends of the blank (3) are gripped by a holding device (39, 40) movable in two axes perpendicular to one another and moved into their end position.
  10. Method for manufacturing a meander-shaped heat sink (2) according to claim 9, characterised in that the heat sink (2) with its contact surfaces is calibrated after bending by pressing against the bending punches (17, 18).
EP18151652.7A 2017-03-09 2018-01-15 Device and method for the preparation of meandering cooling bodies Active EP3372320B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017105049.3A DE102017105049A1 (en) 2017-03-09 2017-03-09 Apparatus and method for producing meander-shaped heat sink

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EP3372320B1 true EP3372320B1 (en) 2022-03-09

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DE (1) DE102017105049A1 (en)
ES (1) ES2909134T3 (en)

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Publication number Priority date Publication date Assignee Title
CN110757895A (en) * 2019-11-21 2020-02-07 广东利元亨智能装备股份有限公司 Paper folding forming device
CN114260655A (en) * 2021-12-28 2022-04-01 浙江工业大学 Four-axis linkage laser acute-angle bending forming device and method

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US3722254A (en) * 1970-11-17 1973-03-27 M Katogir Material forming apparatus
DE2900672A1 (en) 1979-01-10 1980-07-17 M & W Fertigungsstrassen Gmbh Bending of long material such as pipe or plate - esp. via machine contg. row of bending rolls for mfg. serpentine pipe coils
CA2057152A1 (en) 1990-12-18 1992-06-19 Roman Traber Method and device for corrugated deformation of a flat material sheet as well as a packaging component produced according to this method
JPH09286063A (en) * 1996-04-23 1997-11-04 Hitachi Zosen Corp Method for imparting bending directionality to sheet and apparatus
US6195874B1 (en) 1998-07-28 2001-03-06 Hon Hai Precision Ind. Co., Ltd. Folded fin forming method, machine and folded fin obtained therefrom

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