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EP0215385B1 - Method and device for joining plates by means of punch-fasteners - Google Patents

Method and device for joining plates by means of punch-fasteners Download PDF

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Publication number
EP0215385B1
EP0215385B1 EP86112241A EP86112241A EP0215385B1 EP 0215385 B1 EP0215385 B1 EP 0215385B1 EP 86112241 A EP86112241 A EP 86112241A EP 86112241 A EP86112241 A EP 86112241A EP 0215385 B1 EP0215385 B1 EP 0215385B1
Authority
EP
European Patent Office
Prior art keywords
die
stamping
punch
pressing
fact
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP86112241A
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German (de)
French (fr)
Other versions
EP0215385A1 (en
Inventor
Eugen Rapp
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RAPP, EUGEN
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Individual
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Publication date
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Priority to AT86112241T priority Critical patent/ATE51778T1/en
Publication of EP0215385A1 publication Critical patent/EP0215385A1/en
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Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/03—Application 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
    • B21D39/035—Joining superposed plates by slitting
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/34—Means for forming clench-tongue [eg, for tieband]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49833—Punching, piercing or reaming part by surface of second part
    • Y10T29/49835—Punching, piercing or reaming part by surface of second part with shaping
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49908—Joining by deforming
    • Y10T29/49915—Overedge assembling of seated part
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49908—Joining by deforming
    • Y10T29/49936—Surface interlocking
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53478—Means to assemble or disassemble with magazine supply
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53709—Overedge assembling means

Definitions

  • the invention is based on a method and a device for connecting thin plates lying on top of one another by means of punching cams.
  • connection of sheets by punching cams has long been known (DE-C 8 73 237).
  • the main problem with this connection technology is the precise material processing with corresponding repeatability of the connection quality.
  • This technique is particularly complicated because a deep-drawing and punching process is combined with a subsequent upsetting or squeezing process, although the tool relative movement between the punch and die takes place in the same axis, but the material movement first in the direction of this axis, but later radially during the squeezing process to do this. It is particularly difficult to master this radial movement in terms of its repeatability.
  • the die is withdrawn after the punching and pressing process so far compared to the counter pressure surface, which is provided here on a flattening stamp, that only one of the two Plate pieces is inside the die, so that only the other plate piece can be widened during the squeezing process.
  • the plates clamped for processing are loosened again when the die is moved back, which means that there is a risk that the plates will not be positively connected to one another.
  • Another major disadvantage is that the device has to be constructed in a relatively complicated manner in order to carry out this backward movement of the die while the flattening die remains stationary. Last but not least, the workpiece must be ejected from the die in a further operation.
  • the method according to the invention with the features of claim 1 and the device according to the invention with the features of claim 3 have the advantage that the entire connection can be produced in only one and therefore easily controllable working stroke of the punching and pressing punch, with punching, pressing and Squeezing, squeezing only the plate piece that is necessary for the interlocking. Since the counterpressure required for the punching process is lower than for the squeezing process, the flexibility of the counterpressure surface can be controlled with very simple static means, so that the counterpressure surface yields only when the necessary shearing process has ended during the punching, and then for the squeezing process in one to remain in a correspondingly shifted position. These elastic means advantageously also serve as ejection means for the workpiece from the die. Mechanical or hydraulic springs can serve as elastic means.
  • the force of the elastic element can also be transmitted via a hydraulic column, so that a press working with hydraulic means can be used, with spatial advantages in particular.
  • the plates to be connected can be metal sheets, but they can also consist partly of plastic.
  • This manufacturing tool includes the pressing device, which of course must be suitable for carrying out the inventive method, but can be designed in a wide variety of ways.
  • a punching and pressing die 1 which can be moved back and forth by the press device and a stationary die 2
  • two plates 4 and 5 - for example metal sheets - to be connected to one another are arranged.
  • these workpieces 4 and 5 can also be any strips or angles act that are to be connected with a plate.
  • the punching and pressing die which can be moved back and forth in accordance with the double arrow I, has a prismatic end face with two end faces 6 which are oblique to the working direction I and one end face 7 running perpendicular to the working direction. Between these end faces 6 and 7 and the flat sides 8 of the punch 1 there are cutting edges 9 formed (Fig. 3).
  • the die 2 has a central bore 10 in which a pinch stamp 11 is arranged to be axially displaceable.
  • This pinch stamp 11 has at its upper end a cutting die 12, the cutting edges 13 of which cooperate with the cutting edges 9 of the punching and pressing die 1 and which are formed by edges between the upper end face 14 of the Crushing stamp 11 and a transverse groove 15, the base 16 serves as a counter pressure surface during the squeezing process.
  • the pinch stamp 11 has a collar 18 which is guided in an enlarged section 17 of the central bore 10 and which is acted upon by an elastic element 19 which is only symbolically indicated here and which is secured against rotation in the bores 10 and 17 by means not shown. As a result, the rotational position of the pinch stamp 11 is secured within the die 2.
  • the elastic element 19 is supported on the side facing away from the collar 18 on a base 20, which at the same time serves as a stroke limiter and thus a stop for the pinch stamp 11 by a pin 21 of the pinch stamp 11 after covering a certain stroke against the force of the elastic element 19 hits this floor 20.
  • the base area 16 of the transverse groove 15 of the pinch punch 11 is just flush with the base area 22 of a die 23, which is provided in the die 2 corresponding to the end faces 6 and 7 of the punching and pressing die 1.
  • the cutting edge 26 formed between the contact surface 24 of the die 2 and the longitudinal walls 25 of this die 23 interacts with the cutting edges 9 of the punching and pressing die 1 assigned to it.
  • the width of the die 23 corresponds to the width of the transverse groove 15.
  • the plate part 28 is then laterally bordered by the boundary walls of the groove 15 and its base 16 and by the die 23.
  • the punching and pressing punch 1 continues in its working direction without interruption, the squeezing punch 11 giving way against the elastic element 19 before the processed material of the plate 4 begins to flow. Only when the pin 21 rests on the base 20 and thereby an "infinite" resistance arises does the upper plate part 27 begin to expand, its material flowing into the spaces which have arisen above the upper end face 14 of the pinch stamp 11 by its displacement. The cross-section of these spaces obtained corresponds to the segment surfaces 30 which can be seen in FIG. 2. The working movement of the stamping and pressing die 1 is then continued slightly over the underside of the lower plate 5, so that some material flows from the upper plate part 27 into the transverse groove 15 . In any case, however, as can be seen in FIG. 6, direct connection between the plates 4 and 5 and the plate parts 27 and 28 is maintained by the webs 31 and 32 pressed into the die 23.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Punching Or Piercing (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

A method for joining stacked thin plates (metal sheets in particular) or plate sections by stamping dies, and an apparatus for performing the method, in which stacked plate portions are severed by stamping them along a longitudinal portion of their peripheries and pressed them out of the plane of the plate, and in which subsequently, by means of a counterpressure die element, the plate portion nearer the plates is enlarged on the cut sides by swaging, yet without the plate portion remote from the plates being enlarged. Further, during the stamping and pressing operation the counterpressure die element, or the swaging die, remains stationary inside the bottom die 2, but subsequently, during the coining operation that generates higher pressing forces, the yields counter to an elastic supporting force, whereupon the flowing material of the plate piece nearer the plates forms flange portions which grip the plate associated with it from behind.

Description

Die Erfindung geht aus von einem Verfahren und einer Vorrichtung zum Verbinden aufeinanderliegender dünner Platten durch Stanznocken.The invention is based on a method and a device for connecting thin plates lying on top of one another by means of punching cams.

Das Verbinden von Blechen durch Stanznocken ist schon lange bekannt (DE-C 8 73 237). Das Hauptproblem dieser Verbindungstechnik besteht in der präzisen Materialverarbeitung mit entsprechender Wiederholbarkeit der Verbindungsqualität. Diese Technik ist besonders deshalb kompliziert, weil hier ein Tiefzieh- und Stanzvorgang kombiniert wird mit einer anschließenden Stauch- oder Quetschbearbeitung, wobei zwar die Werkzeugrelativbewegung zwischen Stempel und Matritze achsgleich erfolgt, die Materialbewegung jedoch zuerst in Richtung dieser Achse, später aber bei der Quetschbearbeitung radial dazu erfolgt. Besonders schwierig ist es, diese Radialbewegung in ihrer Wiederholbarkeit zu beherrschen.The connection of sheets by punching cams has long been known (DE-C 8 73 237). The main problem with this connection technology is the precise material processing with corresponding repeatability of the connection quality. This technique is particularly complicated because a deep-drawing and punching process is combined with a subsequent upsetting or squeezing process, although the tool relative movement between the punch and die takes place in the same axis, but the material movement first in the direction of this axis, but later radially during the squeezing process to do this. It is particularly difficult to master this radial movement in terms of its repeatability.

Bei einem bekannten Verfahren bzw. einer bekannten Vorrichtung der gattungsgemäßen Art (DE-A 23 38 460) wird die Matritze nach dem Stanz- und Drückvorgang soweit gegenüber der Gegendruckfläche, die hier an einem Abflachstempel vorgesehen ist, zurückgenommen, daß nur noch eines der beiden Plattenstücke innerhalb der Matritze ist, so daß beim Quetschvorgang nur das andere Plattenstück verbreitert werden kann. Hierbei werden nachteiliserweise die für die Bearbeitung eingespannten Platten beim Rückverfahren der Matritze wieder gelöst wodurch die Gefahr besteht, daß die Platten nicht formschlüssig miteinander verbunden werden. Ein weiterer wesentlicher Nachteil besteht darin, daß die Vorrichtung verhältnismäßig kompliziert aufgebaut sein muß, um diesen Rückfahrvorgang der Matritze durchzuführen bei gleichzeitigem Stehenbleiben des Abflachstempels. Nicht zuletzt muß dann in einem weiteren Arbeitsgang das Werkstück aus der Matritze ausgeworfen werden.In a known method or a known device of the generic type (DE-A 23 38 460), the die is withdrawn after the punching and pressing process so far compared to the counter pressure surface, which is provided here on a flattening stamp, that only one of the two Plate pieces is inside the die, so that only the other plate piece can be widened during the squeezing process. Disadvantageously, the plates clamped for processing are loosened again when the die is moved back, which means that there is a risk that the plates will not be positively connected to one another. Another major disadvantage is that the device has to be constructed in a relatively complicated manner in order to carry out this backward movement of the die while the flattening die remains stationary. Last but not least, the workpiece must be ejected from the die in a further operation.

Vorteile der ErfindungAdvantages of the invention

Das erfindungsgemäße Verfahren mit den Merkmalen des Anspruchs 1 bzw. die erfindungsgemäße Vorrichtung mit den Merkmalen des Anspruchs 3 haben demgegenüber den Vorteil, daß in nur einem und dadurch gut kontrollierbaren Arbeitshub des Stanz- und Drückstempels die gesamte Verbindung herstellbar ist, mit Stanzen, Drücken und Quetschen, wobei nur das Plattenstück gequetscht wird, das für die Verhakung erforderlich ist. Da der für den Stanzvorgang erforderliche Gegendruck geringer ist als für den Quetschvorgang, läßt sich mit sehr einfachen statischen Mitteln die Nachgiebigkeit der Gegendruckfläche steuern, so daß erst wenn der erforderliche Schervorgang beim Stanzen beendet ist, die Gegendruckfläche nachgibt, um dann für den Quetschvorgang in einer entsprechend verschobenen Lage zu verharren. Vorteilhafterweise dienen diese elastischen Mittel gleichzeitig als Auswurfmittel des Werkstückes aus der Matritze. Als elastische Mittel können mechanische oder hydraulische Federn dienen.The method according to the invention with the features of claim 1 and the device according to the invention with the features of claim 3 have the advantage that the entire connection can be produced in only one and therefore easily controllable working stroke of the punching and pressing punch, with punching, pressing and Squeezing, squeezing only the plate piece that is necessary for the interlocking. Since the counterpressure required for the punching process is lower than for the squeezing process, the flexibility of the counterpressure surface can be controlled with very simple static means, so that the counterpressure surface yields only when the necessary shearing process has ended during the punching, and then for the squeezing process in one to remain in a correspondingly shifted position. These elastic means advantageously also serve as ejection means for the workpiece from the die. Mechanical or hydraulic springs can serve as elastic means.

Die Kraft des elastischen Elements kann auch über eine Hydrauliksäule übertragen werden, so daß ene mit hydraulischen Mitteln arbeitende Presse einsetzbar ist, mit vor allem räumlichen Vorteilen.The force of the elastic element can also be transmitted via a hydraulic column, so that a press working with hydraulic means can be used, with spatial advantages in particular.

Die zu verbindenden Platten können Bleche sein, sie können aber auch zum Teil aus Kunststoff bestehen.The plates to be connected can be metal sheets, but they can also consist partly of plastic.

Weitere Vorteile und vorteilhafte Ausgestaltungen der Erfindunge sind der nachfolgenden Beschreibung, der Zeichnung und den Ansprüchen entnehmbar.Further advantages and advantageous embodiments of the invention can be found in the following description, the drawing and the claims.

Zeichnungendrawings

Ein Ausführungsbeispiel des Gegenstandes der Erfindung ist in den Zeichnungen dargestellt und wird im folgenden näher beschrieben. Es zeigen:

  • Fig. 1 einen Schnitt durch ein Ausführungsbeispiel des erfindungsgemäßen Werkzeugs;
  • Fig. 2 eine Ansicht des Gesenkes nach Linie 11-11 in Fig. 1;
  • Fig. 3 einen Schnitt durch das Werkszeug nach Linie 111-111 in Fig. 1;
  • Fig. 4 eine Werkzeugstellung nach Beendigung des Stanzvorgangs;
  • Fig. 5 eine Werkzeugstellung nach Beendigung des Quetschvorgangs und
  • Fig. 6 einen Schnitt nach Linie VI-VI in Fig. 5 durch einen Teil des Werkzeugs und entsprechend der Schnittlage von Fig. 1.
An embodiment of the object of the invention is illustrated in the drawings and will be described in more detail below. Show it:
  • 1 shows a section through an embodiment of the tool according to the invention.
  • Fig. 2 is a view of the die along line 11-11 in Fig. 1;
  • 3 shows a section through the tool according to line 111-111 in Fig. 1.
  • 4 shows a tool position after the punching process has ended;
  • Fig. 5 shows a tool position after the squeezing process and
  • 6 shows a section along line VI-VI in FIG. 5 through part of the tool and corresponding to the sectional position of FIG. 1.

Beschreibung des AusführungsbeispielsDescription of the embodiment

In den Fig. 1-6 ist nur das eigentliche Herstellungswerkzeug in verschiedenen Schnitten und Arbeitsstellung dargestellt. Zu diesem Herstellungswerkzeug gehört die Preßvorrichtung, die natürlich zur Durchführung des erfinderischen Verfahrens geeignet sein muß, aber in unterschliedlichster Weise gestaltet sein kann.1-6, only the actual manufacturing tool is shown in different sections and working position. This manufacturing tool includes the pressing device, which of course must be suitable for carrying out the inventive method, but can be designed in a wide variety of ways.

Zwischen einem durch die Pressenvorrichtung hin und her bewegbaren Stanz- und Drückstempel 1 und einem ortsfesten Gesenk 2 sind zwei miteinander zu verbindende Platten 4 und 5 - beispielsweise Bleche - angeordnet, Natürlich kann es sich bei diesen Werkstücken 4 und 5 auch um irgendwelche Bänder oder Winkel handeln, die mit einer Platte zu verbinden sind.Between a punching and pressing die 1 which can be moved back and forth by the press device and a stationary die 2, two plates 4 and 5 - for example metal sheets - to be connected to one another are arranged. Of course, these workpieces 4 and 5 can also be any strips or angles act that are to be connected with a plate.

Der entsprechend dem Doppelpfeil I hin und her bewegbare Stanz- und Drückstempel weist eine prismatische Stirnfläche auf mit zwei zur Arbeitsrichtung I schrägen Stirnflächen 6 und einer senkrecht zur Arbeitsrichtung verlaufenden Stirnfläche 7. Zwischen diesen Stirnflächen 6 und 7 und den Flachseiten 8 des Stempels 1 sind Schneidkanten 9 gebildet (Fig. 3).The punching and pressing die, which can be moved back and forth in accordance with the double arrow I, has a prismatic end face with two end faces 6 which are oblique to the working direction I and one end face 7 running perpendicular to the working direction. Between these end faces 6 and 7 and the flat sides 8 of the punch 1 there are cutting edges 9 formed (Fig. 3).

Das Gesenk 2 weist eine zentrale Bohrung 10 auf, in der ein Quetschstempel 11 axial verschiebbar angeordnet ist. Dieser Quetschstempel 11 weist an seinen oberen Ende ein Schneidgesenk 12 auf, deren Schneidkanten 13 mit den Schneidkannten 9 des Stanz- und Drückstempels 1 zusammenwirken und die durch Kanten gebildet werden zwischen der oberen Stirnseite 14 des Quetschstempels 11 und einer Quernut 15, deren Grundfläche 16 als Gegendruckfläche beim Quetschvorgang dient.The die 2 has a central bore 10 in which a pinch stamp 11 is arranged to be axially displaceable. This pinch stamp 11 has at its upper end a cutting die 12, the cutting edges 13 of which cooperate with the cutting edges 9 of the punching and pressing die 1 and which are formed by edges between the upper end face 14 of the Crushing stamp 11 and a transverse groove 15, the base 16 serves as a counter pressure surface during the squeezing process.

Der Quetschstempel 11 weist einen in einem erweiterten Abschnitt 17 der zentralen Bohrung 10 geführten Bund 18 auf, an dem ein hier nur symbolisch angedeutetes elastisches Element 19 angreift und der gegen Verdrehen in den Bohrungen 10 und 17 durch nicht dargestellte Mittel gesichert ist. Hierdurch wird die Drehlage des Quetschstempels 11 innerhalb des Gesenkes 2 gesichert. Das elastische Element 19 stützt sich auf der dem Bund 18 abgewandten Seite an einem Boden 20 ab, der gleichzeitig als Hubbegrenzung und damit Anschlag des Quetschstempels 11 dient, indem ein Zapfen 21 des Quetschstempels 11 nach Zurücklegung eines bestimmten Hubes entgegen der Kraft des elastischen Elements 19 auf diesen Boden 20 stößt.The pinch stamp 11 has a collar 18 which is guided in an enlarged section 17 of the central bore 10 and which is acted upon by an elastic element 19 which is only symbolically indicated here and which is secured against rotation in the bores 10 and 17 by means not shown. As a result, the rotational position of the pinch stamp 11 is secured within the die 2. The elastic element 19 is supported on the side facing away from the collar 18 on a base 20, which at the same time serves as a stroke limiter and thus a stop for the pinch stamp 11 by a pin 21 of the pinch stamp 11 after covering a certain stroke against the force of the elastic element 19 hits this floor 20.

Nach Zurücklegung dieses Hubes ist die Grundfläche 16 der Quernut 15 des Quetschstempels 11 gerade bündig mit der Grundfläche 22 einer Matritze 23, die im Gesenk 2 entsprechend den Stirnflächen 6 und 7 des Stanz- und Drückstempels 1 ausgebildet vorgesehen ist. Die zwischen der Auflagefläche 24 des Gesenkes 2 und den Längswänden 25 dieser Matritze 23 gebildete Schneidkante 26 wirkt mit den ihr zugeordneten Schneidkanten 9 des Stanz- und Drückstempels 1 zusammen. Die Breite der Matritze 23 entspricht der Breite der Quernut 15.After this stroke has been covered, the base area 16 of the transverse groove 15 of the pinch punch 11 is just flush with the base area 22 of a die 23, which is provided in the die 2 corresponding to the end faces 6 and 7 of the punching and pressing die 1. The cutting edge 26 formed between the contact surface 24 of the die 2 and the longitudinal walls 25 of this die 23 interacts with the cutting edges 9 of the punching and pressing die 1 assigned to it. The width of the die 23 corresponds to the width of the transverse groove 15.

Die Technik des Verbindens von dünnen Platten arbeitet anhand dieses dargestellten Beispiels wie folgt:

  • Nach Legen der Platten 4 und 5 auf die Auflagefläche 24 (Fig. 1 und 3), wird der Stanz- und Drückstempel 1 für den Stanzvorgang in Richtung Gesenk 2 verschoben, wobei die entsprechenden Plattenteil 27 und 28, die zur Herstellung der Verbindung an ihren Längsumrißlinien ausgestanzt und dann gedrückt werden sollen, durch die Schneidkanten 9 des Stanz- und Drückstempels 1 in Zusammenwirkung mit den Schneidkanten 13 und 26 des Gesenks geschert und in die Quernut 15 bzw. die Matritze 23 gedrückt werden.
The technique of joining thin plates works as follows based on this illustrated example:
  • After placing the plates 4 and 5 on the support surface 24 (Fig. 1 and 3), the punch and press stamp 1 for the punching process is moved in the direction of die 2, the corresponding plate parts 27 and 28, which are used to make the connection to their Longitudinal outline lines are to be punched out and then pressed, sheared through the cutting edges 9 of the punching and pressing die 1 in cooperation with the cutting edges 13 and 26 of the die and pressed into the transverse groove 15 or the die 23.

Der Plattenteil 28 ist danach seitlich durch die Begrenzungswände der Nut 15 und deren Grundfläche 16 sowie durch die Matritze 23 eingefaßt. Der Plattenteil 27 hingegen, der aus der Platte 4 herausgeschnitten bzw. gedrückt wurde, ist nach diesem ersten Arbeitsgang in der Öffnung 29 der unteren Platte 5 verblieben, die durch das Herausstanzen bzw, Drücken des unteren Plattenteils 28 entstanden ist (Fig. 4).The plate part 28 is then laterally bordered by the boundary walls of the groove 15 and its base 16 and by the die 23. The plate part 27, on the other hand, which was cut out or pressed from the plate 4, remained after this first operation in the opening 29 of the lower plate 5, which was created by punching out or pressing the lower plate part 28 (FIG. 4).

Für den nun folgenden Quetscharbeitsgang fährt der Stanz- und Drückstempel 1 ohne Unterbrechung weiter in seiner Arbeitsrichtung, wobei der Quetschtempel 11 entgegen dem elastischen Element 19 nachgibt, bevor der bearbeitete Werkstoff der Platte 4 zu fließen beginnt. Erst wenn der Zapfen 21 an dem Boden 20 anliegt und dadurch ein "unendlicher" Widerstand entsteht, beginnt der obere Plattenteil 27 sich auszudehnen, wobei dessen Material in die Räume fließt, die oberhalb der oberen Stirnseite 14 des Quetschtempels 11 durch dessen Verschieben entstanden sind. Der Querschnitt dieser gewonnenen Räume entspricht den Fig. 2 entnehmbaren Segmentflächen 30. Die Arbeitsbewegung des Stanz- und Drückstempels 1 wird dann noch geringfügig über die Unterseite der unteren Platte 5 fortgesetzt, so daß auch etwas Material von dem oberen Plattenteil 27 in die Quernut 15 fließt. In jedem Fall jedoch bleibt, weie in Fig. 6 zu erkennen, und direkte Verbindung zwischen den Platten 4 und 5 und den Plattenteilen 27 und 28 durch die in die Matritze 23 gedrückten Stege 31 und 32 erhalten.For the following squeezing operation, the punching and pressing punch 1 continues in its working direction without interruption, the squeezing punch 11 giving way against the elastic element 19 before the processed material of the plate 4 begins to flow. Only when the pin 21 rests on the base 20 and thereby an "infinite" resistance arises does the upper plate part 27 begin to expand, its material flowing into the spaces which have arisen above the upper end face 14 of the pinch stamp 11 by its displacement. The cross-section of these spaces obtained corresponds to the segment surfaces 30 which can be seen in FIG. 2. The working movement of the stamping and pressing die 1 is then continued slightly over the underside of the lower plate 5, so that some material flows from the upper plate part 27 into the transverse groove 15 . In any case, however, as can be seen in FIG. 6, direct connection between the plates 4 and 5 and the plate parts 27 and 28 is maintained by the webs 31 and 32 pressed into the die 23.

Sobald der Stanz- und Drückstempel 1 dann wieder ausgefahren wird, wird durch das elastische Element 19 und den damit betätigten Quetschstempel 11 das Werkstück 4, 5 ausgeworfen.As soon as the punching and pressing punch 1 is then extended again, the workpiece 4, 5 is ejected by the elastic element 19 and the squeezing punch 11 actuated thereby.

Claims (8)

1. Process for joining thin sheets (4, 5) (particularly metal sheets) or sheet sections (4, 5), arranged on top of each other, by means of stamped studs, where the sheet sections lying upon each other (27, 28) are severed by stamping along part of their contours and pressed out of the plane of the sheet and where, by means of a counter-pressure surface (16, 22), sheet section (27) which is nearer sheets (4, 5) is widened at the cut sides by compressing sheets (4, 5), the radial deformation of sheet section (28) which faces away from sheets (4, 5) being limited, characterized by the fact that the counter-pressure surface (16), formed on a compression punch (11) has at least one recess (15) with cutting edges (13) for the stamping and pressing operation and, owing to an elastic supporting force (19), initially remains stationary, then yielding under the higher compressive forces required for the compression operation to such an extent that the flowing material of sheet section (27), which is nearer to sheets (4, 5), reaches behind sheet (5) associated with it, recess (15) in counter-pressure surface (16) limiting the radial deformation of sheet section (28), which faces away.
2. Process as per Claim 1, characterized by the fact that elastic supporting force (19) is greater than the stamping and pressing force, but smaller than the compression force.
3. Fixing for joining thin sheets (4, 5) or sheet sections (4, 5), arranged on top of each other, by means of stamped studs, using a die (2) arranged on a press, with a compression punch (11) in aperture (10) provided in die (2), die (2) and compression punch (11) moving relative to each other in working direction, and with a stamping and pressing punch (1) driven to and fro by the press, characterized by the fact that compression punch (11) has a recess (15) with cutting edges (13) on end face (14), facing stamping and pressing punch (1), that it (11) can be moved against an elastic element (19) during the stamping and pressing stroke of stamping and pressing punch (1) and that it rests against a stop (20) during the compression stroke of stamping and pressing punch (1).
4. Fixture as per Claim 3, characterized by the fact that a transverse slot (15) serves as recess in compression punch (11) and that die (2) possesses a die (23) for pressing, with cutting edges (26) for stamping.
5. Fixture as per Claim 4, characterized by the fact that when compression punch (11) moves in aperture (10) of die (2), a corresponding section of the wall of aperture (10) is exposed, so that the compressed material can flow as far as this wall.
6. Fixture as per one of Claims 3 to 5, characterized by the fact that a spring is used as elastic element (19).
7. Fixture as per one of Claims 3 to 6, characterized by the fact that hydraulic means are used as elastic element (19).
8. Fixture as per one of Claims 3 to 7, characterized by the fact that the force of elastic element (19) is transmitted via a hydraulic column.
EP86112241A 1985-09-14 1986-09-04 Method and device for joining plates by means of punch-fasteners Expired - Lifetime EP0215385B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86112241T ATE51778T1 (en) 1985-09-14 1986-09-04 METHOD AND DEVICE FOR JOINING PANELS BY PUNCHING CAM.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3532899 1985-09-14
DE19853532899 DE3532899A1 (en) 1985-09-14 1985-09-14 METHOD AND DEVICE FOR CONNECTING PANELS BY PUNCHING CAMS

Publications (2)

Publication Number Publication Date
EP0215385A1 EP0215385A1 (en) 1987-03-25
EP0215385B1 true EP0215385B1 (en) 1990-04-11

Family

ID=6281019

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86112241A Expired - Lifetime EP0215385B1 (en) 1985-09-14 1986-09-04 Method and device for joining plates by means of punch-fasteners

Country Status (7)

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US (1) US4760632A (en)
EP (1) EP0215385B1 (en)
JP (1) JPS6272441A (en)
AT (1) ATE51778T1 (en)
CA (1) CA1307169C (en)
DE (2) DE3532899A1 (en)
ES (1) ES2002748A6 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3710929A1 (en) * 1987-04-01 1988-10-13 Eugen Rapp METHOD AND DEVICE FOR CONNECTING LAYER THIN PLATES
DE3805688A1 (en) * 1988-02-24 1989-09-07 Eckold Vorrichtung DEVICE FOR IMPLEMENTING SHEET METAL PIECES
US5315743A (en) * 1990-05-18 1994-05-31 Tech-Line Engineering Co. Apparatus for forming a clinch joint
US4979285A (en) * 1990-07-20 1990-12-25 Martin Benson D Method of connecting a stack of laminations for electric motors
DE4111102A1 (en) * 1991-04-05 1992-10-08 Fraunhofer Ges Forschung Overlapping component joining mechanism - uses spring component forming anvil in die bottom and moving with punch
DE9114122U1 (en) * 1991-11-13 1993-04-01 Eckold GmbH & Co KG, 3424 St. Andreasberg Device for joining sheet metal parts
US5432989A (en) * 1992-10-27 1995-07-18 Archer Manufacturing Corporation Apparatus and method for joining sheet material
US5376879A (en) * 1992-11-03 1994-12-27 Qrp, Incorporated Method and apparatus for evaluating electrostatic discharge conditions
DE4331403A1 (en) * 1993-09-15 1995-03-16 Tox Pressotechnik Gmbh Method of joining thin plates and device for carrying out the method
JP3224502B2 (en) * 1995-11-20 2001-10-29 日本メタルガスケット株式会社 Press mold for laminated metal sheet
DE19929375B4 (en) * 1999-06-25 2008-07-24 Tox Pressotechnik Gmbh & Co. Kg Method, apparatus and tool unit for clinching
US6493907B2 (en) 2001-01-12 2002-12-17 Honeywell International Inc. Wire terminal fastener and method
US7762034B2 (en) * 2008-09-26 2010-07-27 Chicago Metallic Corporation Rotary stitch for joining sheet metal stock
WO2010037410A1 (en) * 2008-10-03 2010-04-08 Abb Technology Ag Laminated connector
JP5901510B2 (en) * 2012-12-26 2016-04-13 京セラドキュメントソリューションズ株式会社 Metal material joining mold and mold release device

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB483663A (en) * 1936-10-22 1938-04-22 Becker Emil Improvements in or relating to flush or counter-sunk riveting
US2671361A (en) * 1950-07-06 1954-03-09 Houdaille Hershey Corp Apparatus for securing together a plurality of sheets
US2811880A (en) * 1953-10-09 1957-11-05 Ivan A Williams Adjustable dies for uniting materials
US3599318A (en) * 1970-02-02 1971-08-17 Behlen Mfg Co Method of bonding sheets
US3919955A (en) * 1974-07-26 1975-11-18 Auto Craft Tool & Die Company Method and crimping tool for permanently joining together two sheet metal members
US3934327A (en) * 1974-08-16 1976-01-27 Hafner Otto P Method of interlocking overlapping sheet material
US4208776A (en) * 1977-09-15 1980-06-24 Schleicher Louis C Punch, die and anvil set
US4312122A (en) * 1979-08-08 1982-01-26 Robertshaw Controls Company Apparatus and method for forming an electrical switch assembly
JPS56114536A (en) * 1980-02-13 1981-09-09 Toshiba Corp Joining device of sheet material
US4403409A (en) * 1980-05-06 1983-09-13 L & H Designs Limited Fastening apparatus and control systems therefor
DE3210208C2 (en) * 1982-03-19 1984-11-15 Bayerische Motoren Werke AG, 8000 München Device for connecting at least two thin-walled components by punching cams
DE3210956A1 (en) * 1982-03-25 1983-09-29 Herbert 7250 Leonberg Hess Tool for the nonreleasable connection of ductile flat workpieces

Also Published As

Publication number Publication date
US4760632A (en) 1988-08-02
ATE51778T1 (en) 1990-04-15
CA1307169C (en) 1992-09-08
EP0215385A1 (en) 1987-03-25
DE3532899A1 (en) 1987-03-26
JPS6272441A (en) 1987-04-03
ES2002748A6 (en) 1988-10-01
DE3670223D1 (en) 1990-05-17

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