EP1527832B1 - Punch assembly with two C-frames - Google Patents

Punch assembly with two C-frames Download PDF

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Publication number
EP1527832B1
EP1527832B1 EP20040021862 EP04021862A EP1527832B1 EP 1527832 B1 EP1527832 B1 EP 1527832B1 EP 20040021862 EP20040021862 EP 20040021862 EP 04021862 A EP04021862 A EP 04021862A EP 1527832 B1 EP1527832 B1 EP 1527832B1
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EP
European Patent Office
Prior art keywords
punching
die
profile
piece
hollow
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Expired - Fee Related
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EP20040021862
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German (de)
French (fr)
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EP1527832A1 (en
Inventor
Karl Weinmann
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Weinmann Holzbausystemtechnik GmbH
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Weinmann Holzbausystemtechnik GmbH
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21JFORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00Riveting
    • B21J15/10Riveting machines
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/03Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal otherwise than by folding
    • B21D39/031Joining superposed plates by locally deforming without slitting or piercing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21JFORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00Riveting
    • B21J15/02Riveting procedures
    • B21J15/025Setting self-piercing rivets

Definitions

  • the invention relates to a punching device for simultaneously connecting a hollow profile on two opposite sides, each with a flat component by means of a deforming fastening technique such as punching, riveting or clinching with the features of the preamble of claim 1.
  • a punching device with E-profiles as a holding device for the punching tools is known, which is used wherever hollow sections at the same time on two different, opposite sides deforming connections with other components to be created, for example, when riveting U -profile-shaped prefabricated parts in building construction, wherever a whole series of similar components must be placed side by side and attached to create walls.
  • a mounting device is provided in the form of a single C-profile, on one leg of a die and on the opposite leg a cooperating with the die stamp is provided , This is usually driven hydraulically and is provided, for example, in the establishment of a riveted joint with a rivet.
  • molding compounds such as stamped joints, rivet joints or ClinchMISen can be easily manufactured, and there are also hollow sections with very different inner diameters and shapes processed, but only a single joint can be edited at a given time.
  • punching devices of the type described in the introduction are a significant improvement, in which instead of a C-profile, an E-profile is used as a holding device for the punching tools.
  • an E-profile is used as a holding device for the punching tools.
  • This middle leg carries two generally coaxially arranged dies, one of which is directed to the one connection point of the hollow profile, the other on the opposite.
  • two punches arranged with the direction of movement to the inner leg of the E-profile, which at the two opposite sides of the hollow profile with the flat on these two sides of the components produce desired connection points in cooperation with the arranged on the inner leg of the E-profile matrices by corresponding collapse and deformation of the hollow profile and the two adjacent components.
  • the matrices can be designed rigid and with a fixed axial length
  • the improved punching devices with E-profile usually with axially variable in length matrices worked so that on the one hand from the inside of the hollow profile, the connection points to be processed can be approached
  • hollow profiles of different diameters can be processed without the support device and the tools located thereon would have to be replaced.
  • the axial mobility of the matrices in these Punching expect a higher wear, since the usually hydraulically driven punch for deforming attachment exert relatively high compressive forces that must be absorbed by the matrices. Therefore, the moving dies have a much lower life than the rigid dies on the simple C-profiles.
  • Object of the present invention is in contrast to improve a punching device of the type described above with the simplest possible technical means to the extent that, on the one hand as in the devices with the E-profile-like support devices two deforming compounds can be attached simultaneously on opposite sides of a hollow profile, On the other hand, an adaptation to even very small inner diameter of hollow profiles can be effected with simpler means and thereby also a more cost-effective production of the holding device for the tools and thus the entire punching device is made possible.
  • the two mutually movable C-profiles allow a very high flexibility and adaptation to different types of hollow sections to be machined and on the other hand, because of their simple structure cheaper to manufacture than the known fixtures in the form of E-profiles. Due to the movability of the C-profiles in the axial punching direction, the matrices on the two adjoining legs of the two C-profiles be made rigid as in the known simple punching devices, in which only a single C-profile is used, but in contrast to the punching device according to the invention can only produce a single deforming connection at a time.
  • first C-profile has at its leg adjacent to the second C-profile a groove or groove in which the first C-profile adjacent leg of the second C-profile is at least partially received in the contracted state of the two C-profiles .
  • the two C-profiles can be moved together so to speak overlapping, so that the middle leg of the thus formed "two-part E-profile” has a particularly small extent in the punching direction. In this way, hollow profiles with very small inner diameters can be edited.
  • the C-profiles can be moved independently of each other, so that asymmetrical or irregular shapes of hollow profiles can be processed as desired.
  • the C-profiles are common, preferably symmetrical to each other. Even with this, large areas of different inner diameters can be covered by hollow profiles, but only if they are constructed to be reasonably symmetrical. But this embodiment is much cheaper to produce than the above with an independent mobility of the C-profiles. In particular, the drive technology can be made much simpler here.
  • a locking device is provided in a further particularly advantageous embodiment of the punching device according to the invention, by means of which the first C-profile can be held at a preselectable fixed distance from the second C-profile ,
  • a development of this embodiment is characterized in that the punching device with a locked distance between the first and the second C-profile is movable in total. This is especially true of Advantage, when the hollow sections to be processed are not placed over a rigidly mounted in support device, but when the support device is to be moved into the cavities of the profiles. Due to the locking of the distance between the two C-profiles, the mutual distance does not have to be readjusted each time.
  • At least the first die, preferably also the second die is constructed rigidly and without the possibility of a change in length.
  • At least the first die is constructed adjustable in length. This allows very flexible adjustments to more unusual or asymmetrical shapes of hollow sections to be machined.
  • the length-adjustable dies are of course more expensive to manufacture and have a shorter lifespan than the rigidly constructed ones, since they are subject to higher wear during operation.
  • the figures of the drawing show an embodiment of the punching device 1 according to the invention for simultaneously connecting a hollow profile 2; 2 'on opposite sides 2a, 2b; 2a ', 2b' with a respectively applied thereto component 3a, 3b by means of a deforming fastening technique such as punching, riveting or clinching.
  • a deforming fastening technique such as punching, riveting or clinching.
  • the components 3a, 3b are flat, but can be present in a wide variety of forms outside the connection region.
  • the punching device 1 comprises a holding device which is constructed from a first C-profile 6a and a second C-profile 6b.
  • the first C-profile 6a carries at its leg 7a adjacent to the second C-profile 6b a first die 4a and the second C-profile 6b at its leg 7b adjacent to the first C-profile 6a a second die 4b.
  • the two C-profiles are moved in the punching direction against each other to such a distance that their two adjacent adjacent legs 7a, 7b together with the arranged on them dies 4a, 4b in the cavity of the hollow section to be processed 2; 2 'can be pushed into it.
  • FIGS. 1a, 1b this is shown for a hollow profile 2 with a relatively small inner diameter, so that the two C-profiles 6a, 6b have moved together at a minimum distance.
  • FIGS. 2a and 2b show an example of a hollow profile 2 'whose opposite sides 2a', 2b 'are at a greater distance from one another.
  • hollow sections 2; 2 'of different shapes and above all to be able to process different sized inner diameter are, as can be seen directly from the figures 1a and 2a, the two C-profiles 6a, 6b in the punching direction against each other movable (in the drawing corresponding double arrows indicated).
  • the two C-profiles 6a, 6b are at a minimum distance or on system moved against each other, while in Fig. 2a have a greater distance from each other.
  • the first C-profile 6a at its the second C-profile 6b adjacent leg 7a provided with a groove 9 in which the first C-profile 6a adjacent leg 7b of the second C-profile 6b is partially taken in the contracted state of the two C-profiles 6a, 6b, as shown in FIG 1b can be seen.
  • the two C-profiles 6a, 6b are shown in the extended state when machining a hollow section 2 'with a larger inner diameter.
  • the remaining parts of the mounting device in a punching device according to the invention are shown in the drawing only roughly schematically and not necessarily completely.
  • a locking device (not shown) by means of which the first C-profile 6a can be held at a preselectable fixed distance from the second C-profile 6b.
  • the entire holding device with the punching tools located thereon can be moved relative to the hollow profiles to be machined both in the punching direction and in one direction radially thereto.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Insertion Pins And Rivets (AREA)
  • Punching Or Piercing (AREA)

Description

Die Erfindung betrifft eine Stanzeinrichtung zum simultanen Verbinden eines Hohlprofils an jeweils zwei gegenüberliegenden Seiten mit jeweils einem flachen Bauelement mittels einer verformenden Befestigungstechnik wie Stanzen, Nieten oder Clinchen mit den Merkmalen des Oberbegriffs des Anspruchs 1.The invention relates to a punching device for simultaneously connecting a hollow profile on two opposite sides, each with a flat component by means of a deforming fastening technique such as punching, riveting or clinching with the features of the preamble of claim 1.

Aus DE 41 34 414 A1 ist eine Stanzeinrichtung mit E-Profilen als Halterungsvorrichtung für die Stanzwerkzeuge bekannt, die überall dort verwendet wird, wo in Hohlprofilen gleichzeitig auf zwei verschiedenen, gegenüberliegenden Seiten verformende Verbindungen mit anderen Bauteilen geschaffen werden sollen, beispielsweise beim Aneinandernieten von U-profilförmigen Fertigbau-Teilen im Hochbaubereich, wo immer zur Erstellung von Wänden eine ganze Reihe gleichartiger Bauteile nebeneinander aufgestellt und befestigt werden muss.From DE 41 34 414 A1, a punching device with E-profiles as a holding device for the punching tools is known, which is used wherever hollow sections at the same time on two different, opposite sides deforming connections with other components to be created, for example, when riveting U -profile-shaped prefabricated parts in building construction, wherever a whole series of similar components must be placed side by side and attached to create walls.

Zur verformenden Befestigung eines Hohlprofils mit einem flachen Bauelement an einer einzigen Seite sind Stanzeinrichtungen bekannt, bei denen eine Halterungsvorrichtung in Form eines einzigen C-Profils vorgesehen ist, auf dessen einem Schenkel eine Matrize und auf dessen gegenüberliegendem Schenkel ein mit der Matrize zusammenwirkender Stempel vorgesehen ist. Dieser wird meist hydraulisch getrieben und ist beispielsweise bei der Errichtung einer Nietverbindung mit einem Niet versehen. Mit einer solchen bekannten Vorrichtung können formende Verbindungen wie Stanzverbindungen, Nietverbindungen oder Clinchverbindungen zwar einfach hergestellt werden, und es sind auch Hohlprofile mit sehr unterschiedlichen Innendurchmessern und Ausformungen verarbeitbar, jedoch kann immer nur eine einzige Verbindungsstelle zu einem bestimmten Zeitpunkt bearbeitet werden.For deforming mounting a hollow profile with a flat component on a single side punching devices are known in which a mounting device is provided in the form of a single C-profile, on one leg of a die and on the opposite leg a cooperating with the die stamp is provided , This is usually driven hydraulically and is provided, for example, in the establishment of a riveted joint with a rivet. Although with such a known device molding compounds such as stamped joints, rivet joints or Clinchverbindungen can be easily manufactured, and there are also hollow sections with very different inner diameters and shapes processed, but only a single joint can be edited at a given time.

Eine wesentliche Verbesserung stellen demgegenüber Stanzeinrichtungen der eingangs beschriebenen Art dar, bei denen statt eines C-Profils ein E-Profil als Halterungsvorrichtung für die Stanzwerkzeuge eingesetzt wird. Zum gleichzeitigen Errichten von Verbindungspunkten an zwei gegenüberliegenden Seiten eines Hohlprofils wird dazu der mittlere Schenkel des E-Profils in das Hohlprofil eingefahren. Dieser mittlere Schenkel trägt zwei in der Regel koaxial angeordnete Matrizen, von denen eine auf den einen Verbindungspunkt des Hohlprofils gerichtet ist, die andere auf den gegenüberliegenden. An den beiden freien Schenkeln des E-Profils sind von der anderen Seite, ebenfalls koaxial, zwei Stempel mit Bewegungsrichtung zum inneren Schenkel des E-Profils angeordnet, die an den beiden gegenüberliegenden Seiten des Hohlprofils mit den an diesen beiden Seiten jeweils flach anliegenden Bauelementen die gewünschten Verbindungspunkte im Zusammenwirken mit den auf dem inneren Schenkel des E-Profils angeordneten Matrizen durch entsprechendes Zusammenfahren und Verformen des Hohlprofils und der beiden anliegenden Bauelemente erzeugen.By contrast, punching devices of the type described in the introduction are a significant improvement, in which instead of a C-profile, an E-profile is used as a holding device for the punching tools. For simultaneous construction of connection points on two opposite sides of a hollow profile of the middle leg of the E-profile is retracted into the hollow profile. This middle leg carries two generally coaxially arranged dies, one of which is directed to the one connection point of the hollow profile, the other on the opposite. On the two free legs of the E-profile are from the other side, also coaxial, two punches arranged with the direction of movement to the inner leg of the E-profile, which at the two opposite sides of the hollow profile with the flat on these two sides of the components produce desired connection points in cooperation with the arranged on the inner leg of the E-profile matrices by corresponding collapse and deformation of the hollow profile and the two adjacent components.

Während nun aber bei den einfachen Stanzeinrichtungen, die lediglich ein C-Profil als Halterungsvorrichtung aufweisen, die Matrizen starr und mit einer festen axialen Länge gestaltet werden können, wird bei den verbesserten Stanzeinrichtungen mit E-Profil in der Regel mit axial in ihrer Länge veränderbaren Matrizen gearbeitet, damit einerseits vom Inneren des Hohlprofils die zu bearbeitenden Verbindungspunkte angefahren werden können, andererseits auch Hohlprofile unterschiedlicher Durchmesser verarbeitet werden können, ohne dass die Halterungsvorrichtung und die darauf befindlichen Werkzeuge ausgetauscht werden müssten.While now, however, in the simple punching devices, which have only a C-profile as a holding device, the matrices can be designed rigid and with a fixed axial length, in the improved punching devices with E-profile usually with axially variable in length matrices worked so that on the one hand from the inside of the hollow profile, the connection points to be processed can be approached, on the other hand, hollow profiles of different diameters can be processed without the support device and the tools located thereon would have to be replaced.

Nachteilig bei diesen universeller arbeitenden Stanzeinrichtungen zur simultanen Verbindung von Hohlprofilen mit an zwei gegenüberliegenden Seiten angeordneten Bauelementen ist jedoch der relativ komplizierte Aufbau der E-profilförmigen Halterungsvorrichtung für die Werkzeuge. Außerdem ist durch die axiale Beweglichkeit der Matrizen bei diesen Stanzeinrichtungen ein höherer Verschleiß zu erwarten, da die in der Regel hydraulisch getriebenen Stempel zur verformenden Befestigung relativ große Druckkräfte ausüben, die von den Matrizen aufgenommen werden müssen. Daher haben die beweglichen Matrizen eine wesentlich geringere Lebensdauer als die starren Matrizen auf den einfachen C-Profilen.A disadvantage of these universal working punching devices for the simultaneous connection of hollow sections with arranged on two opposite sides of the components, however, is the relatively complicated structure of the E-profile-shaped mounting device for the tools. In addition, by the axial mobility of the matrices in these Punching expect a higher wear, since the usually hydraulically driven punch for deforming attachment exert relatively high compressive forces that must be absorbed by the matrices. Therefore, the moving dies have a much lower life than the rigid dies on the simple C-profiles.

Aus der US 4,136, 592 ist eine Lochstanzpresse für Doppel-T-Träger bekannt. Mit dieser können Löcher sowohl in den langen Basisteil als auch auf beiden Seiten eines der Querbalken des Trägers eingebracht werden. Die Presse weist dazu zwei C-Profile mit Stanzzylindern auf, die in ihrem gegenseitigen Abstand verstellbar sind. Zur Vermeidung einer Kollision der C-Proile mit dem Träger weisen diese jedoch stets einen gegenseitigen Mindestabstand auf.From US 4,136,592 a hole punching press for double T-beams is known. With this holes can be introduced both in the long base part as well as on both sides of one of the crossbar of the wearer. The press has two C-profiles with punching cylinders, which are adjustable in their mutual distance. To avoid a collision of the C-Proile with the carrier, however, these always have a mutual minimum distance.

Aufgabe der vorliegenden Erfindung ist es demgegenüber, eine Stanzeinrichtung der eingangs beschriebenen Art mit möglichst einfachen technischen Mitteln dahin gehend zu verbessern, dass zwar einerseits wie bei den Einrichtungen mit den E-profilartigen Halterungsvorrichtungen zwei verformende Verbindungen gleichzeitig an gegenüberliegenden Seiten eines Hohlprofils angebracht werden können, andererseits aber eine Anpassung an auch sehr kleine Innendurchmesser von Hohlprofilen mit einfacheren Mitteln bewirkt werden kann und dadurch auch eine kostengünstigere Herstellung der Halterungsvorrichtung für die Werkzeuge und damit der gesamten Stanzeinrichtung ermöglicht wird.Object of the present invention is in contrast to improve a punching device of the type described above with the simplest possible technical means to the extent that, on the one hand as in the devices with the E-profile-like support devices two deforming compounds can be attached simultaneously on opposite sides of a hollow profile, On the other hand, an adaptation to even very small inner diameter of hollow profiles can be effected with simpler means and thereby also a more cost-effective production of the holding device for the tools and thus the entire punching device is made possible.

Erfindungsgemäß wird diese Aufgabe mit einer Stanzeinrichtung mit den Merkmalen des Anspruchs 1 gelöst.According to the invention, this object is achieved with a stamping device having the features of claim 1.

Die beiden gegeneinander bewegbaren C-Profile ermöglichen eine sehr hohe Flexibilität und Anpassung an unterschiedlichste Arten von zu bearbeitenden Hohlprofilen und sind andererseits wegen ihres einfachen Aufbaus kostengünstiger in der Herstellung als die bekannten Halterungsvorrichtungen in Form von E-Profilen. Aufgrund der Verfahrbarkeit der C-Profile in axialer Stanzrichtung können die Matrizen auf den beiden aneinander angrenzenden Schenkeln der beiden C-Profile starr gestaltet werden wie bei den bekannten einfachen Stanzeinrichtungen, bei denen lediglich ein einziges C-Profil Verwendung findet, die aber im Gegensatz zur erfindungsgemäßen Stanzeinrichtung zu einem Zeitpunkt nur jeweils eine einzige verformende Verbindung erzeugen können. Dadurch ergibt sich bei der erfindungsgemäßen Einrichtung ein erheblich geringerer Verschleiß und eine wesentlich längere Lebensdauer der Matrizen gegenüber den beweglichen und längenverstellbaren Matrizen der bekannten Stanzeinrichtungen mit Halterungsvorrichtung in Form eines E-Profils. Außerdem sind derartige starre Matrizen auch ganz erheblich kostengünstiger in der Herstellung.The two mutually movable C-profiles allow a very high flexibility and adaptation to different types of hollow sections to be machined and on the other hand, because of their simple structure cheaper to manufacture than the known fixtures in the form of E-profiles. Due to the movability of the C-profiles in the axial punching direction, the matrices on the two adjoining legs of the two C-profiles be made rigid as in the known simple punching devices, in which only a single C-profile is used, but in contrast to the punching device according to the invention can only produce a single deforming connection at a time. This results in the device according to the invention significantly less wear and a significantly longer life of the matrices compared to the movable and length-adjustable matrices of the known punching devices with mounting device in the form of an E-profile. In addition, such rigid matrices are also considerably less expensive to manufacture.

Dadurch, dass das erste C-Profil an seinem dem zweiten C-Profil benachbarten Schenkel eine Nut oder Rinne aufweist, in welcher der dem ersten C-Profil benachbarte Schenkel des zweiten C-Profils im zusammengefahrenen Zustand der beiden C-Profile zumindest teilweise aufgenommen wird, können die beiden C-Profile gewissermaßen überlappend zusammengefahren werden, sodass der mittlere Schenkel des dadurch gebildeten "zweiteiligen E-Profils" eine besonders geringe Ausdehnung in Stanzrichtung aufweist. Auf diese Weise können auch Hohlprofile mit sehr geringen Innendurchmessern bearbeitet werden.Characterized in that the first C-profile has at its leg adjacent to the second C-profile a groove or groove in which the first C-profile adjacent leg of the second C-profile is at least partially received in the contracted state of the two C-profiles , The two C-profiles can be moved together so to speak overlapping, so that the middle leg of the thus formed "two-part E-profile" has a particularly small extent in the punching direction. In this way, hollow profiles with very small inner diameters can be edited.

Bei einer besonders flexibel einsetzbaren Ausführungsform der erfindungsgemäßen Stanzeinrichtung sind die C-Profile unabhängig voneinander verfahrbar, sodass auch unsymmetrische oder irreguläre Formen von Hohlprofilen beliebig bearbeitet werden können.In a particularly flexible embodiment of the punching device according to the invention, the C-profiles can be moved independently of each other, so that asymmetrical or irregular shapes of hollow profiles can be processed as desired.

Bei einer alternativen Ausführungsform, die wesentlich einfacher und kostengünstiger aufgebaut ist, sind hingegen die C-Profile gemeinsam, vorzugsweise symmetrisch zueinander verfahrbar. Auch damit lassen sich große Bereiche unterschiedlicher Innendurchmesser von Hohlprofilen abdecken, allerdings nur, wenn diese halbwegs symmetrisch aufgebaut sind. Dafür ist diese Ausführungsform aber sehr viel preisgünstiger herstellbar als die oben genannte mit einer unabhängigen Verfahrbarkeit der C-Profile. Insbesondere die Antriebstechnik kann hier sehr viel einfacher gestaltet sein.In an alternative embodiment, which is constructed much simpler and cheaper, however, the C-profiles are common, preferably symmetrical to each other. Even with this, large areas of different inner diameters can be covered by hollow profiles, but only if they are constructed to be reasonably symmetrical. But this embodiment is much cheaper to produce than the above with an independent mobility of the C-profiles. In particular, the drive technology can be made much simpler here.

Zur simultanen Bearbeitung zweier gegenüberliegender Seiten eines Hohlprofils wird entweder das Hohlprofil mit den beiden anliegenden zu verbindenden Bauelementen, die zumindest im Bereich der Verbindungsstellen flach ausgebildet sind, in anderen Bereichen dagegen mehr oder weniger beliebig geformt sein können, über die benachbarten Schenkel der beiden C-Profile gestülpt, welche dazu auf die minimal mögliche Distanz aneinander herangefahren werden. Umgekehrt kann aber bei anderen Ausführungsformen auch vorgesehen sein, die beiden benachbarten Schenkel der C-Profile in den Hohlraum des zu bearbeitenden Hohlprofils hineinzufahren und danach dann die Stempel auf die beiden freien außen liegenden Schenkel der C-Profile gegen die nun innerhalb des Hohlprofils positionierten Matrizen zu verfahren und damit auf beiden Seiten die verformenden Verbindungen zu erzeugen.For simultaneous processing of two opposite sides of a hollow profile either the hollow profile with the two adjacent components to be connected, which are formed flat at least in the region of the joints, in other areas, however, more or less arbitrarily shaped, on the adjacent legs of the two C Profiles slipped, which are approached to the minimum possible distance to each other. Conversely, it can also be provided in other embodiments, to drive the two adjacent legs of the C-profiles in the cavity of the hollow section to be machined and then the stamp on the two free outer legs of the C-profiles against the now positioned within the hollow profile matrices to proceed and thus produce on both sides of the deforming connections.

Um eine Vielzahl gleichartiger Hohlprofile und Bauteile zeitlich nacheinander in rascher Abfolge verarbeiten zu können, ist bei einer weiteren besonders vorteilhaften Ausführungsform der erfindungsgemäßen Stanzeinrichtung eine Arretiervorrichtung vorgesehen, mittels derer das erste C-Profil in einem vorwählbaren festen Abstand vom zweiten C-Profil gehalten werden kann.In order to be able to process a multiplicity of similar hollow profiles and components in succession in rapid succession, a locking device is provided in a further particularly advantageous embodiment of the punching device according to the invention, by means of which the first C-profile can be held at a preselectable fixed distance from the second C-profile ,

Eine Weiterbildung dieser Ausführungsform zeichnet sich dadurch aus, dass die Stanzeinrichtung mit arretiertem Abstand zwischen dem ersten und dem zweiten C-Profil insgesamt verfahrbar ist. Dies ist insbesondere von Vorteil, wenn die zu bearbeitenden Hohlprofile nicht über eine in sich starr gelagerte Halterungsvorrichtung gestülpt werden, sondern wenn die Halterungsvorrichtung in die Hohlräume der Profile verfahren werden soll. Aufgrund der Arretierung des Abstands zwischen den beiden C-Profilen muss nicht jedes Mal der gegenseitige Abstand neu justiert werden.A development of this embodiment is characterized in that the punching device with a locked distance between the first and the second C-profile is movable in total. This is especially true of Advantage, when the hollow sections to be processed are not placed over a rigidly mounted in support device, but when the support device is to be moved into the cavities of the profiles. Due to the locking of the distance between the two C-profiles, the mutual distance does not have to be readjusted each time.

Besonders vorteilhaft ist auch eine Ausführungsform der erfindungsgemäßen Stanzeinrichtung, bei der zumindest die erste Matrize, vorzugsweise auch die zweite Matrize starr und ohne die Möglichkeit einer Längenänderung aufgebaut ist. Hierdurch kann die Lebensdauer der Matrizen aufgrund ganz erheblich geringeren Verschleißes, wie oben diskutiert, wesentlich verlängert werden.Also particularly advantageous is an embodiment of the punching device according to the invention, in which at least the first die, preferably also the second die is constructed rigidly and without the possibility of a change in length. As a result, the life of the matrices due to significantly lower wear, as discussed above, be significantly extended.

Für besondere Anwendungszwecke sind aber auch etwas komplexere Ausführungsformen der Erfindung denkbar, bei denen zumindest die erste Matrize längenverstellbar aufgebaut ist. Hierdurch lassen sich sehr flexibel Anpassungen auch an ungewöhnlichere oder unsymmetrische Ausformungen von zu bearbeitenden Hohlprofilen erreichen. Allerdings sind die längenverstellbaren Matrizen in der Herstellung natürlich teurer und besitzen eine geringere Lebensdauer als die starr aufgebauten, da sie einem höheren Verschleiß im Betrieb unterworfen sind.For special applications but also more complex embodiments of the invention are conceivable in which at least the first die is constructed adjustable in length. This allows very flexible adjustments to more unusual or asymmetrical shapes of hollow sections to be machined. However, the length-adjustable dies are of course more expensive to manufacture and have a shorter lifespan than the rigidly constructed ones, since they are subject to higher wear during operation.

Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der nachfolgenden detaillierten Beschreibung von Ausführungsbeispielen der Erfindung anhand der Figuren der Zeichnung, die erfindungswesentliche Einzelheiten zeigt, sowie aus den Ansprüchen. Die einzelnen Merkmale können je einzeln für sich oder zu mehreren in beliebigen Kombinationen bei Varianten der Erfindung verwirklicht sein.Further features and advantages of the invention will become apparent from the following detailed description of embodiments of the invention with reference to the figures of the drawing, which shows details essential to the invention, and from the claims. The individual features may be implemented individually for themselves or for a plurality of combinations in variants of the invention.

In der schematischen Zeichnung sind Ausführungsbeispiele der Erfindung dargestellt, welche in der nachfolgenden Beschreibung näher erläutert werden.In the schematic drawing embodiments of the invention are shown, which are explained in more detail in the following description.

Es zeigen:

Fig. 1a
eine schematische Seitenansicht in horizontaler Richtung auf eine Ausführungsform der erfindungsgemäßen Stanzeinrichtung mit vertikal angeordneter Stanzachse, bei der die benachbarten Schenkel der beiden C-Profile auf minimale Distanz zusammengefahren sind;
Fig. 1b
einen Vertikalschnitt durch die Ebene A-A der Vorrichtung nach Fig. 1a;
Fig. 2a
die Vorrichtung nach Fig. 1a mit in Stanzrichtung auseinander gefahrenen C-Profilen; und
Fig. 2b
einen Vertikalschnitt durch die Ebene B-B der Stanzeinrichtung nach Fig. 2a.
Show it:
Fig. 1a
a schematic side view in the horizontal direction of an embodiment of the punching device according to the invention with vertically arranged punching axis, in which the adjacent legs of the two C-profiles are moved together to a minimum distance;
Fig. 1b
a vertical section through the plane AA of the apparatus of Fig. 1a;
Fig. 2a
the apparatus of Figure 1a with apart in the punching direction C-profiles. and
Fig. 2b
a vertical section through the plane BB of the punching device of Fig. 2a.

Die Figuren der Zeichnung zeigen eine Ausführungsform der erfindungsgemäßen Stanzeinrichtung 1 zum simultanen Verbinden eines Hohlprofils 2; 2' an jeweils gegenüberliegenden Seiten 2a, 2b; 2a', 2b' mit einem jeweils daran anliegenden Bauelement 3a, 3b mittels einer verformenden Befestigungstechnik wie Stanzen, Nieten oder Clinchen. Zumindest im Bereich der beabsichtigten Verbindungsstellen sind die Bauelemente 3a, 3b flach, können jedoch außerhalb des Verbindungsbereichs in den unterschiedlichsten Formen vorliegen.The figures of the drawing show an embodiment of the punching device 1 according to the invention for simultaneously connecting a hollow profile 2; 2 'on opposite sides 2a, 2b; 2a ', 2b' with a respectively applied thereto component 3a, 3b by means of a deforming fastening technique such as punching, riveting or clinching. At least in the area of the intended connection points, the components 3a, 3b are flat, but can be present in a wide variety of forms outside the connection region.

Die erfindungsgemäße Stanzeinrichtung 1 umfasst eine Halterungsvorrichtung, die aus einem ersten C-Profil 6a und einem zweiten C-Profil 6b aufgebaut ist. Das erste C-Profil 6a trägt an seinem dem zweiten C-Profil 6b benachbarten Schenkel 7a eine erste Matrize 4a und das zweite C-Profil 6b an seinem dem ersten C-Profil 6a benachbarten Schenkel 7b eine zweite Matrize 4b. Am freien, äußeren Schenkel 8a des ersten C-Profils 6a ist ein erster Stempel 5a und am freien äußeren Schenkel 8b des zweiten C-Profils 6b ein zweiter Stempel 5b angeordnet, um jeweils im Zusammenwirken mit der entsprechenden Matrize 4a, 4b simultan jeweils eine Verbindung der beiden gegenüberliegenden Seiten 2a, 2b; 2a', 2b' mit den jeweils dort anliegenden flachen Bauelementen 3a, 3b zu bewirken.The punching device 1 according to the invention comprises a holding device which is constructed from a first C-profile 6a and a second C-profile 6b. The first C-profile 6a carries at its leg 7a adjacent to the second C-profile 6b a first die 4a and the second C-profile 6b at its leg 7b adjacent to the first C-profile 6a a second die 4b. At the free, outer leg 8a of the first C-profile 6a, a first punch 5a and at the free outer leg 8b of the second C-profile 6b, a second punch 5b arranged to each in cooperation with the corresponding die 4a, 4b simultaneously a connection of the two opposite sides 2a, 2b; 2a ', 2b' with the respectively applied there flat components 3a, 3b to effect.

Dazu werden die beiden C-Profile in Stanzrichtung gegeneinander auf einen derartigen Abstand verfahren, dass ihre beiden aneinander angrenzenden benachbarten Schenkel 7a, 7b zusammen mit den auf ihnen angeordneten Matrizen 4a, 4b in den Hohlraum des zu bearbeitenden Hohlprofils 2; 2' hinein geschoben werden können. In den Figuren 1a, 1b ist dies für ein Hohlprofil 2 mit relativ geringem Innendurchmesser gezeigt, sodass die beiden C-Profile 6a, 6b auf minimalen Abstand zusammengefahren sind. Die Figuren 2a und 2b hingegen zeigen ein Beispiel für ein Hohlprofil 2', dessen gegenüberliegende Seiten 2a', 2b' einen größeren Abstand voneinander aufweisen.For this purpose, the two C-profiles are moved in the punching direction against each other to such a distance that their two adjacent adjacent legs 7a, 7b together with the arranged on them dies 4a, 4b in the cavity of the hollow section to be processed 2; 2 'can be pushed into it. In FIGS. 1a, 1b, this is shown for a hollow profile 2 with a relatively small inner diameter, so that the two C-profiles 6a, 6b have moved together at a minimum distance. On the other hand, FIGS. 2a and 2b show an example of a hollow profile 2 'whose opposite sides 2a', 2b 'are at a greater distance from one another.

Sobald die beabsichtigten Verbindungsstellen zwischen dem Hohlprofil 2; 2' und den beiden damit zu verbinden flachen Bauelementen 3a, 3b durch die Werkzeuge (Matrizen 4a, 4b und Stempel 5a, 5b) erreicht sind, werden mittels einer in der Regel hydraulisch arbeitenden Vorrichtung, von der in der Zeichnung lediglich schematisch die Hydraulikzylinder 10a, 10b dargestellt sind, die beiden Stempel 5a, 5b gegen die entsprechenden Matrizen 4a, 4b verfahren, um eine entsprechende verformende Verbindung zwischen den Seiten 2a, 2b bzw. 2a', 2b' des Hohlprofils 2; 2' und den daran jeweils anliegenden flachen Bauelementen 3a, 3b zu bewirken.Once the intended joints between the hollow section 2; 2 'and the two flat components 3a, 3b to be connected thereto are achieved by the tools (dies 4a, 4b and punches 5a, 5b), by means of a generally hydraulically operating device, of which in the drawing only schematically the hydraulic cylinders 10a 10b, the two punches 5a, 5b are moved against the corresponding dies 4a, 4b to form a corresponding deforming connection between the sides 2a, 2b and 2a ', 2b' of the hollow profile 2; 2 'and the respective adjacent flat components 3a, 3b to effect.

Statt die Halterungsvorrichtung mit den daran angebrachten Werkzeugen in den Hohlraum des Hohlprofils 2; 2' zu verfahren, kann aber auch umgekehrt das Hohlprofil 2; 2' zur Bearbeitung über die beiden benachbarten Schenkel 7a, 7b der C-Profile 6a, 6b "gestülpt" werden.Instead of the mounting device with the attached tools in the cavity of the hollow section 2; 2 'to proceed, but can also reverse the hollow section 2; 2 'for processing over the two adjacent legs 7a, 7b of the C-profiles 6a, 6b "slipped".

Um Hohlprofile 2; 2' unterschiedlicher Formen und vor allem unterschiedlich großer Innendurchmesser verarbeiten zu können, sind, wie aus den Figuren 1a und 2a unmittelbar ersichtlich ist, die beiden C-Profile 6a, 6b in Stanzrichtung gegeneinander verfahrbar (in der Zeichnung durch entsprechende Doppelpfeile angedeutet). In Fig. 1a sind dabei die beiden C-Profile 6a, 6b auf minimalen Abstand bzw. auf Anlage gegeneinander verfahren, während sie in Fig. 2a einen größeren Abstand voneinander aufweisen.To hollow sections 2; 2 'of different shapes and above all to be able to process different sized inner diameter are, as can be seen directly from the figures 1a and 2a, the two C-profiles 6a, 6b in the punching direction against each other movable (in the drawing corresponding double arrows indicated). In Fig. 1a, the two C-profiles 6a, 6b are at a minimum distance or on system moved against each other, while in Fig. 2a have a greater distance from each other.

Um den minimalen Abstand der beiden C-Profile 6a, 6b möglichst klein halten zu können, damit auch Hohlprofile 2 von sehr geringem Innendurchmesser mit der erfindungsgemäßen Stanzeinrichtung bearbeitbar sind, ist bei den in der Zeichnung dargestellten Ausführungsformen das erste C-Profil 6a an seinem dem zweiten C-Profil 6b benachbarten Schenkel 7a mit einer Nut 9 versehen, in welcher der dem ersten C-Profil 6a benachbarte Schenkel 7b des zweiten C-Profils 6b in zusammengefahrenem Zustand der beiden C-Profile 6a, 6b teilweise aufgenommen wird, wie in Fig. 1b zu erkennen ist. In Fig. 2b sind die beiden C-Profile 6a, 6b im auseinander gefahrenen Zustand bei der Bearbeitung eines Hohlprofils 2' mit größerem Innendurchmesser dargestellt.In order to keep the minimum distance between the two C-profiles 6a, 6b as small as possible so that hollow sections 2 of very small inner diameter can be machined with the punching device according to the invention, in the embodiments shown in the drawing, the first C-profile 6a at its the second C-profile 6b adjacent leg 7a provided with a groove 9 in which the first C-profile 6a adjacent leg 7b of the second C-profile 6b is partially taken in the contracted state of the two C-profiles 6a, 6b, as shown in FIG 1b can be seen. In Fig. 2b, the two C-profiles 6a, 6b are shown in the extended state when machining a hollow section 2 'with a larger inner diameter.

Die übrigen Teile der Halterungsvorrichtung bei einer erfindungsgemäßen Stanzeinrichtung sind in der Zeichnung nur grob schematisch und auch nicht notwendigerweise vollständig gezeigt. So kann beispielsweise auch eine (nicht dargestellte) Arretiervorrichtung vorgesehen sein, mittels derer das erste C-Profil 6a in einem vorwählbaren festen Abstand vom zweiten C-Profil 6b gehalten werden kann. Insbesondere kann in dieser arretierten Stellung die gesamte Halterungsvorrichtung mit den darauf befindlichen Stanzwerkzeugen relativ zu den zu bearbeitenden Hohlprofilen sowohl in Stanzrichtung als auch in einer Richtung radial dazu bewegt werden.The remaining parts of the mounting device in a punching device according to the invention are shown in the drawing only roughly schematically and not necessarily completely. For example, it is also possible to provide a locking device (not shown) by means of which the first C-profile 6a can be held at a preselectable fixed distance from the second C-profile 6b. In particular, in this locked position, the entire holding device with the punching tools located thereon can be moved relative to the hollow profiles to be machined both in the punching direction and in one direction radially thereto.

Claims (7)

  1. Punching device for simultaneous connection of a hollow form (2, 2') on, in each case, two opposite sides (2a, 2b; 2a', 2b'), to, in each case, one flat structural element (3a, 3b), by means of a deforming attachment method such as punching, riveting or clinching, whereby the punching device has a mounting device in the form of an E-shaped section, the central arm-piece of which extends into the hollow form (2, 2') and carries a first die (4a) that, in conjunction with a first punch (5a), which is disposed on each of the two outer arm-pieces of the E-form, connects the hollow form (2; 2') to the first flat structural element (3a), and a second die (4b) that, in conjunction with a second punch (5b) in the other outer arm-piece of the E-form, brings about connection of the hollow form (2; 2') to the second flat, structural element (3b),
    whereby the E-form of the mounting device is made up of a first C-form (6a) and a second C-form (6b) and the first C-form (6a), on its arm-piece (7a) that is adjacent to the second C-form (6b), carries the first die (4a), and the second C-form (6b), on its arm-piece (7b) that is adjacent to the first C-form (6a), carries the second die (4b), and whereby the first punch (5a) is disposed on the free, outer arm-piece (8a) of the first C-form (6a) and the second punch (5b) is disposed on the free, outer arm-piece (8b) of the second C-form (6b),
    and whereby the first C-form (6a) and the second C-form (6b) can be moved towards each other in the direction of punching,
    characterized in that the first C-form (6a) has, on its arm-piece (7a) adjacent to the second C-form (6b), a groove or channel (9) in which the arm-piece (7b), of the second C-form (6b), that is adjacent to the first C-form (6a), is at least partially taken up when the two C-forms (6a, 6b) have been pushed together.
  2. Punching device in accordance with claim 1, characterized in that the C-forms (6a, 6b) can be conveyed independently of each other.
  3. Punching device in accordance with claim 1, characterized in that the C-forms (6a, 6b) can be conveyed towards each other jointly, preferably symmetrically.
  4. Punch device in accordance with one of the preceding claims, characterized in that at least the first die (4a), and preferably also the second die (46), are rigid, without, in particular, the possibility of an extension in length.
  5. Punching device in accordance with one of claims 1 to 3, characterized in that at least the first die (4a) is structured such that its length can be adjusted.
  6. Punching device in accordance with one of the preceding claims characterized in that a stop device is provided by means of which the first C-form (6a) can be held at a pre-selectable fixed separation from the second C-form (6b).
  7. Punching device in accordance with claim 6, characterized in that the punch device (1) can be conveyed, as a whole unit, with the locked separation between the first C-form (6a) and the second C-form (6b).
EP20040021862 2003-10-28 2004-09-15 Punch assembly with two C-frames Expired - Fee Related EP1527832B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2003150157 DE10350157B3 (en) 2003-10-28 2003-10-28 Punching device for joining hollow profiles at opposite-lying sides has a holding unit having an E-profile consisting of a first C-profile and a second C-profile
DE10350157 2003-10-28

Publications (2)

Publication Number Publication Date
EP1527832A1 EP1527832A1 (en) 2005-05-04
EP1527832B1 true EP1527832B1 (en) 2006-12-20

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DE (2) DE10350157B3 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MX2010014472A (en) * 2010-12-21 2012-06-21 Metalsa S A De C V System for perforating flanges in long structural sections.
CN103143923B (en) * 2013-03-19 2015-02-18 无锡威孚力达催化净化器有限责任公司 High-speed perforating machine for packaging POC carrier
CN103272917B (en) * 2013-06-07 2015-06-17 佛山市顺德区科贝隆塑料机械有限公司 Rapid automatic punching machine for trunking
CN105798180B (en) * 2016-05-06 2017-10-20 安徽鲲鹏装备模具制造有限公司 A kind of housing riveting equipment
DE102016216110A1 (en) 2016-08-26 2018-03-01 Volkswagen Aktiengesellschaft joining device

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Publication number Priority date Publication date Assignee Title
US4136592A (en) * 1976-06-01 1979-01-30 Beatty Machine & Manufacturing Co. Apparatus for one-pass punching of beams
US5063804A (en) * 1990-03-20 1991-11-12 Peddinghaus Corporation Offset punch press assembly for structural beams
DE4134414A1 (en) * 1991-10-17 1993-04-22 Knuerr Mechanik Ag Rivet connector for sheet metal - consists of bottom die holder with two opposite bottom die/anvil groups, located between two upper die tools
US6640602B2 (en) * 2001-03-02 2003-11-04 Ssd Control Technology, Inc. Dual notcher

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EP1527832A1 (en) 2005-05-04
DE10350157B3 (en) 2004-12-09

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