Nothing Special   »   [go: up one dir, main page]

EP0155619A2 - Method for connecting metal sheets together - Google Patents

Method for connecting metal sheets together Download PDF

Info

Publication number
EP0155619A2
EP0155619A2 EP85102777A EP85102777A EP0155619A2 EP 0155619 A2 EP0155619 A2 EP 0155619A2 EP 85102777 A EP85102777 A EP 85102777A EP 85102777 A EP85102777 A EP 85102777A EP 0155619 A2 EP0155619 A2 EP 0155619A2
Authority
EP
European Patent Office
Prior art keywords
die
sheet
sheets
anvil
clinching device
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.)
Granted
Application number
EP85102777A
Other languages
German (de)
French (fr)
Other versions
EP0155619B1 (en
EP0155619A3 (en
Inventor
Gerd-Jürgen Eckold
Hans Maass
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Walter Eckold GmbH and Co KG Vorrichtungs und Geraetebau
Original Assignee
Walter Eckold GmbH and Co KG Vorrichtungs und Geraetebau
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DE19848408793 external-priority patent/DE8408793U1/en
Priority claimed from DE19848408792 external-priority patent/DE8408792U1/en
Application filed by Walter Eckold GmbH and Co KG Vorrichtungs und Geraetebau filed Critical Walter Eckold GmbH and Co KG Vorrichtungs und Geraetebau
Priority to AT85102777T priority Critical patent/ATE49521T1/en
Publication of EP0155619A2 publication Critical patent/EP0155619A2/en
Publication of EP0155619A3 publication Critical patent/EP0155619A3/en
Application granted granted Critical
Publication of EP0155619B1 publication Critical patent/EP0155619B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B21D39/031—Joining superposed plates by locally deforming without slitting or piercing
    • 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
    • Y10T29/49938—Radially expanding part in cavity, aperture, or hollow body
    • 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
    • Y10T29/5343—Means to drive self-piercing work 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
    • Y10T403/00—Joints and connections
    • Y10T403/49—Member deformed in situ
    • Y10T403/4974—Member deformed in situ by piercing

Definitions

  • the invention relates to a clinching method in which two sheets lying flat on top of one another are connected to one another by cutting, pressing through sheet metal material and extruding the pressed material behind the incisions.
  • extruding Regarding the term "enforcement”, DIN 8593, Part 5, Section 4.5.2.11. to refer.
  • the invention further relates to a clinching device with which the method can be carried out.
  • a clinching device for joining sheet metal lying flat on top of one another comprising a die with a central anvil part and with support parts projecting over an anvil work surface, resiliently arranged with respect to the anvil and provided with cutting edges at its free end, and a punch which passes through the die relative to the die Sheets can be moved towards the anvil work surface is disclosed in EP-B-00 77 932; with it, for example, the joint connection can be made in accordance with the aforementioned DIN sheet.
  • the stamp or the stamps have a counter cutting edge for each die cutting edge, in the preferred case two parallel cutting edges and two counter cutting edges.
  • the stamp cuts through both sheets along congruent lines, and the material pressed through on the die side is squeezed.
  • This known device has the advantage of very small dimensions relative to the thickness of the sheets to be connected, and both the punch and the die are very easy to manufacture.
  • the strength of the "joining point" created with the known device is by far sufficient in most cases, there was nevertheless a need to increase the skill of the connection and the object of the present invention is a clinching method and to provide a device suitable for its implementation, in which or in which the joining strength is increased compared to the values achievable with the known device.
  • the method according to the invention is characterized in that only one of the sheets is provided with incisions and the pressed material is extruded on the side of the cut sheet facing away from the other sheet.
  • the device according to the invention is characterized in that the punch, at least in the area of its working surface facing the anvil, is narrower than the push-through area defined by the distance between the cutting edges.
  • the non-cut sheet remains fluid-tight at the joint and that coatings such as galvanizing or plating are not cut through, so that generally a desired corrosion protection is retained.
  • jointed surfaces of the joint are all rounded, which should further deteriorate the strength under both shear and tensile loads.
  • the edges delimiting the working surface of the stamp in a deliberately blunt manner by selecting an edge angle of more than 90 ° and / or rounding the edges.
  • An angle of 40 ° has proven itself for steel sheets of the same thickness.
  • the teaching of the invention is also applicable to devices in which a die has a stamp with several working surfaces, e.g. a double stamp is assigned.
  • the invention can also be implemented with matrices in which the support parts can be exchanged to adapt to different material qualities and / or material thicknesses.
  • a particularly simple embodiment of the device is obtained if the die has only two support parts with cutting edges that are parallel to one another.
  • this embodiment has the advantage that the alignment of the die and punch in the press used only has to be carried out with a high degree of accuracy in the direction perpendicular to the cutting edges, while the alignment across is less critical.
  • FIGS. 1 and 2 show the two possible relative positions of the punch and die at the beginning and at the end of the press stroke.
  • FIGS. 1 to 5 First, reference is made to FIGS. 1 to 5.
  • the die comprises a stationary anvil 10 supported on its underside in the press with an essentially elongated, rectangular plan; Fig. 1 shows the side view on the narrow side.
  • Support parts 12 extend along the broad sides of the anvil and can extend laterally (FIG. 2) and whose free edges facing the anvil are designed as cutting edges.
  • the plane defined by the two cutting edges is one dimension higher than the somewhat convexly curved working surface 16 of the anvil, which is smaller than the sum of the thickness of both sheets 18, 20, but greater than the thickness of the sheet 18 facing it.
  • the punch 22 has a working surface 24 which - as can be clearly seen in FIG. 1 - is narrower than the distance between the two cutting edges: Jen corresponds to the die. Starting from this working surface, the cross section of the stamp increases, so that the area penetrating into the sheets has the shape of a truncated pyramid with a rectangular base, the angle of inclination of the pyramid sides relative to the stamp axis being approximately 20 c ; this corresponds to a tip angle of 40 °.
  • the amount by which the work surface 24 is narrower than that The distance between the cutting edges depends on the thickness of the sheets, in particular on the thickness of the sheet 20 facing them, and is preferably dimensioned (for which a few attempts are sufficient) that this sheet 20 is no longer cut through when joining.
  • the edge delimiting the working surface 24 is rounded, in the example with a radius of the order of 0.5 mm, and polished.
  • the side faces of the truncated pyramid-shaped stamp section are designated by 26.
  • the contour of the stamp on the sides extending perpendicular to the cutting edges is not shown in FIGS. 1 and 2, but can be seen in FIG. 9, which shows a stamp "that is different on the right than a doubling of the stamp from FIG. 1 une 2. It should be noted that here too the contour has approximately the same apex angle of the truncated pyramid as on the sides parallel to the cutting edge.
  • FIGS. 6 to 8 Two parallel incisions were made in the sheet 18; the die and the stamp are very simple, inexpensive adjustable shape. If special requirements are placed on the appearance of the joining points, that is to say they are visible, for example, in everyday objects, an embodiment of the device as indicated in FIGS. 6 to 8 can be preferred. These embodiments are only shown as a top view of the die.
  • the anvil 10 '(FIG. 6) or 10 "(FIG. 7) has the shape of a cylinder, and the support parts 12' or 12" have cutting edges which extend the sheet metal facing them along four (FIG. 6) or Cut three (Fig. 7) arcs with the same radius and common center.
  • FIG. 8 In the embodiment according to FIG. 8, four supporting parts 12 "'are arranged around an anvil 10"', which has a square outline; the webs then remain in the corner area. It should be noted that under certain circumstances it is also possible to dispense with standing webs. This would result in a closed circular incision shape in FIGS. 6 and 7, in FIG. 8 a closed square incision shape, with the result that a plate with a corresponding outline would be punched out of the sheet metal facing the die. The appearance of the joint would be very similar to a rivet head, but care would have to be taken to ensure that the die-cut plate is ejected from the die after each operation.
  • the stamp according to FIG. 9 is designed as a double stamp, in that two stamps according to FIG. 1 are arranged side by side and are made in one piece. One can see the two working surfaces 24a, 24b and the respectively assigned flanks 28, which extend perpendicular to the cutting edges and also define an apex angle of 40 °. The edges of the associated matrices are simply designed to be correspondingly longer, so that two adjacent joints are produced with one press stroke.
  • the die includes a base 118 with a flat, one; Press table (not shown) parallel support surface 120 and a flat clamping surface 122 extending perpendicular thereto.
  • a threaded bore 124 is machined into the base perpendicular to the clamping surface 122.
  • the support members 126, 128 and anvil 130 are separately manufactured components.
  • the anvil 130 is an embossed steel part, and the support parts are stamped and erroneous, the area of their cutting edges 132 - both on their side facing the anvil and on its side facing the support parts are provided with a cutting edge - specially hardened or hard-coated and ground.
  • the anvil and support parts have through holes which, when assembled, are in alignment with the threaded bore 124, the forces acting on the joining being transmitted to the base in that the support parts and anvil are supported on the support surface 120.
  • a clamping plate 134 On the side facing away from the clamping surface 122 of the support part 126, a clamping plate 134 is provided, also provided with an aligned through hole. The entire assembly is held together by a clamping screw 136. In Fig. 10 the clamping screw is not yet tightened so that you can see that it is convexly curved outwards and thus acts as a spring washer. With its lower edge, it also lies on the support surface 120.
  • This embodiment has the advantage that the support parts can first be turned over when their cutting edges wear and, if the second pair of cutting edges is blunt, can be replaced.
  • the anvil can also be replaced.
  • Experience has shown that there is no wear on the anvil, but this enables the joining of sheets of different thickness, which in turn requires a change in the distance of the cutting edges 132 from the anvil working surface 138.
  • the upper edge 140 of the clamping washer is at the same height as the upper edge 142 of the clamping surface 122, so that the same clamping conditions are present for both support parts.
  • the support parts have a contour with lateral cutouts, so that the bending stress during lateral rebound is distributed as uniformly as possible over the length of the support parts.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Punching Or Piercing (AREA)
  • Connection Of Plates (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

Durchsetzfügeverfahren, bei dem dank besonderer Gestaltung von Patrize und Matrize nur eines der Bleche mit Einschnitten versehen wird, wobei sich eine Verbindung hoher Festigkeit ergibt.Push-through method in which, thanks to the special design of the male and female molds, only one of the sheets is provided with incisions, resulting in a high-strength connection.

Description

Die Erfindung betrifft ein Durchsetzfügeverfahren, bei dem zwei flächig aufeinanderliegende Bleche durch Einschneiden, Durchdrücken von Blechmaterial und Fließverpressen des durchgedrückten Materials hinter den Einschnitten miteinander verbunden werden. Zu dem Begriff "Durchsetzfügen" ist auf DIN 8593, Teil 5, Abschnitt 4.5.2.11. zu verweisen.The invention relates to a clinching method in which two sheets lying flat on top of one another are connected to one another by cutting, pressing through sheet metal material and extruding the pressed material behind the incisions. Regarding the term "enforcement", DIN 8593, Part 5, Section 4.5.2.11. to refer.

Die Erfindung betrifft ferner eine Durchsetzfügevorrichtung, mit der das Verfahren durchführbar ist.The invention further relates to a clinching device with which the method can be carried out.

Eine Durchsetzfügevorrichtung zum Verbinden flächig aufeinanderliegender Bleche, umfassend eine Matrize mit einem mittleren Amboßteil und mit über eine Amboßarbeitsfläche vorstehenden, auswärts bezüglich des Amboß' federnd angeordneten und mit Schneiden an ihrem freien Ende versehenen Stützteilen, sowie einen Stempel, der relativ zu der Matrize durch die Bleche hindurch auf die Amboßarbeitsfläche zu bewegbar ist, ist in der EP-B-00 77 932 offenbart; mit ihr beispielsweise läßt sich die Fügeverbindung gemäß dem erwähnten DIN-Blatt herstellen.A clinching device for joining sheet metal lying flat on top of one another, comprising a die with a central anvil part and with support parts projecting over an anvil work surface, resiliently arranged with respect to the anvil and provided with cutting edges at its free end, and a punch which passes through the die relative to the die Sheets can be moved towards the anvil work surface is disclosed in EP-B-00 77 932; with it, for example, the joint connection can be made in accordance with the aforementioned DIN sheet.

Bei der bekannten Vorrichtung weist der Stempel oder weisen die Stempel für jede Matrizenschneide eine Gegenschneide auf, im bevorzugten Falle je zwei parallele Schneiden und Gegenschneiden. Der Stempel durchschneidet beide Bleche längs kongruenten Linien, und das auf der Matrizenseite durchgedrückte Material wird breitgequetscht. - Diese bekannte Vorrichtung hat den Vorzug sehr geringer Abmessungen relativ zu der Dicke der zu verbindenden Bleche, und sowohl der Stempel als auch die Matrize sind sehr einfach zu fertigen.In the known device, the stamp or the stamps have a counter cutting edge for each die cutting edge, in the preferred case two parallel cutting edges and two counter cutting edges. The stamp cuts through both sheets along congruent lines, and the material pressed through on the die side is squeezed. - This known device has the advantage of very small dimensions relative to the thickness of the sheets to be connected, and both the punch and the die are very easy to manufacture.

Obwohl die Festigkeit des mit der bekannten Vorrichtung erzeugten "Fügepunkts", wie die Praxis gezeigt hat, in den meisten Fällen bei weitem ausreicht, bestand gleichwohl das Bedürfnis, die Fertigkeit der Verbindung zu vergrößern, und es ist die Aufgabe der vorliegenden Erfindung, ein Durchsetzfügeverfahren und eine zu seiner Durchführung geeignete Vorrichtung zu schaffen, bei dem bzw. bei der die Fügefestigkeit gegenüber den mit der bekannten Vorrichtung erzielbaren Werten erhöht ist.Although, as practice has shown, the strength of the "joining point" created with the known device is by far sufficient in most cases, there was nevertheless a need to increase the skill of the connection and the object of the present invention is a clinching method and to provide a device suitable for its implementation, in which or in which the joining strength is increased compared to the values achievable with the known device.

Zur Lösung dieser Aufgabe ist das Verfahren gemäß der Erfindung dadurch gekennzeichnet, daß nur eines der Bleche mit Einschnitten versehen wird und das durchgedrückte Material auf der dem andern Blech abgewandten Seite des eingeschnittenen Blechs fließverpreßt wird.To achieve this object, the method according to the invention is characterized in that only one of the sheets is provided with incisions and the pressed material is extruded on the side of the cut sheet facing away from the other sheet.

Die erfindungsgemäße Vorrichtung ist dadurch gekennzeichnet, daß der Stempel zumindest im Bereich seiner dem Amboß zugekehrten Arbeitsfläche schmaler ist als der durch den Abstand der Schneiden definierte Durchdrückbereich.The device according to the invention is characterized in that the punch, at least in the area of its working surface facing the anvil, is narrower than the push-through area defined by the distance between the cutting edges.

Bei Vergleichsmessungen hat sich in höchst überraschender Weise gezeigt, daß die Festigkeit eines erfindungsgemäß erzeugten Fügepunkts diejenige von Fügepunkten, die mit der bekannten Vorrichtung unter sonst gleichen Bedingungen gefertigt wurden, um mindestens 50% und bis zu 75% übersteigt; dabei wurde die Fügeverbindung Scherbelastungen parallel zur Blechoberfläche sowie Zugbelastungen senkrecht zu dieser unterworfen.In comparative measurements, it has been shown in a highly surprising manner that the strength of a joining point produced according to the invention exceeds that of joining points which were produced with the known device under otherwise identical conditions by at least 50% and up to 75%; the joint connection was subjected to shear loads parallel to the sheet surface and tensile loads perpendicular to it.

Bei Anwendung der Erfindung ergibt sich der weitere Vorteil, daß das nicht-eingeschnittene Blech an der Fügestelle fluiddicht bleibt und auch Beschichtungen wie Verzinkung oder Plattierung nicht durchschnitten werden, so daß im allgemeinen ein gewöhnlich gewunschter Korrosionssc-hutz erhalten bleibt.When using the invention, there is the further advantage that the non-cut sheet remains fluid-tight at the joint and that coatings such as galvanizing or plating are not cut through, so that generally a desired corrosion protection is retained.

Fügeverfahren, bei denen der Fügepunkt dicht bleibt, sind aus der DE-A-31 06 313 bekannt. Gemäß der Lehre dieser Druckschrift werden zwei flächig aufeinanderliegende Bleche dadurch miteinander verbunden, daß ein begrenzter Abschnitt des einen Bleches mittels eines stumpfen Stempels durch das andere, von einer ebenfalls stumpfen Matrize abgestützte andere Blech durchgedrückt wird, wonach beide durchgedrückten Bleche hinter der dem ersten Blech abgewandten Seite des zweiten Blechs seitlich fließverpreßt werden. Zu diesem Zweck 'können zwei Teile der Matrize seitlich ausfeaern. Dabei trägt der durchgedrückte und fließverpreßte Materialanteil des der Matrize zugekehrten Blechs nichts zur Fügefestigkeit bei; im Gegenteil behindert das Material dieses Bleches das Fließverpressen des vom stempelseitigen Blech durchgedrückten Materials, so daß eine schlechtere Festigkeit zu erwarten ist. Darüberhinaus sind die miteinander verklammerten Flächen der Fügestelle sämtlich abgerundet, was die Festigkeit sowohl bei Scher- als auch bei Zugbelastung weiter verschlechtern dürfte. Diese überlegungen, bezogen auf den Gegenstand der Erfindung und den Stand der Technik, beruhen natürlich auf der Annahme sonst gleicher Bedingungen (Materialoualität und -dicke, Abmessung der Fügestelle, Arbeitsdruck und Arbeitshub).Joining processes in which the joining point remains tight are known from DE-A-31 06 313. According to the teaching of this document, two sheets lying flat on top of one another are connected to one another in that a limited section of one sheet is pressed by means of a blunt stamp through the other sheet, which is also supported by a blunt die, after which both sheets pressed through are behind the first sheet facing away from the first Side of the second sheet are extruded laterally. For this purpose, two parts of the die can extend laterally. The pressed-through and extruded material portion of the sheet facing the die does not contribute to the joining strength; on the contrary, the material of this sheet hinders the extrusion of the material pushed through by the stamp-side sheet, so that poorer strength is to be expected. In addition, the jointed surfaces of the joint are all rounded, which should further deteriorate the strength under both shear and tensile loads. These considerations, based on the subject matter of the invention and the prior art, are of course based on the assumption of otherwise identical conditions (material quality and thickness, dimension of the joint, working pressure and working stroke).

Bei der Vorrichtung gemäß der Erfindung hat es sich als vorteilhaft erwiesen, die die Arbeitsfläche des Stempels begrenzenden Kanten betont stumpf auszubilden, indem ein Kantenwinkel von mehr als 90° gewählt wird und/oder die Kanten verrundet werden. Andererseits muß aber auch sichergestellt werden, daß das matrizenseitige Blech wirklich eingeschnitten wird, und daß auch der Vorgang des Fließverpressens in gewünschter Weise abläuft. Es hat sich cabei für die wichtigsten Anwendungsfälle als brauchbarer Kompromiß herausgestellt, den Stempel -- ausgehend von seiner Arbeitsfläche -- kegel- oder pyramidenstumpfförmig (je nach Form der Schneiden) mit einem Konus- bzw. Pyramidenspitzenwinkel von 30..500 auszubilden, wobei die Festlegung durch die Dicke und Qualität des Materials der Bleche bestimmt wird. Ein Winkel von 40° hat sich bei Stahlblechen gleicher Dicke bewährt.In the device according to the invention, it has proven to be advantageous to form the edges delimiting the working surface of the stamp in a deliberately blunt manner by selecting an edge angle of more than 90 ° and / or rounding the edges. On the other hand, it must also be ensured that the sheet on the die side is really cut, and that the process of extrusion is also carried out in the desired manner. For the most important applications, it has turned out to be a useful compromise to design the stamp - starting from its working surface - in the shape of a truncated cone or pyramid (depending on the shape of the cutting edges) with a cone or pyramid tip angle of 30..50 0 , whereby the determination is determined by the thickness and quality of the material of the sheets. An angle of 40 ° has proven itself for steel sheets of the same thickness.

Die Lehre der Erfindung ist auch bei solchen Vorrichtungen anwendbar, bei denen einer Matrize ein Stempel mit mehreren Arbeitsflächen, z.B. ein Doppelstempel, zugeordnet ist. Ebenso ist die Erfindung auch mit Matrizen ausführbar, bei denen die Stützteile zur Anpassung an unterschiedliche Materialqualitäten und/oder Materialdicken austauschbar sind.The teaching of the invention is also applicable to devices in which a die has a stamp with several working surfaces, e.g. a double stamp is assigned. The invention can also be implemented with matrices in which the support parts can be exchanged to adapt to different material qualities and / or material thicknesses.

Eine besonders einfache Ausführung der Vorrichtung ergibt sich, wenn die Matrize nur zwei Stützteile mit zueinander parallelen Schneiden aufweist. Darüberhinaus hat diese Ausführungsform den Vorteil, daß die Ausfluchtung von Matrize und Stempel in der verwendeten Presse nur in Richtung senkrecht zu den Schneiden mit hoher Genauigkeit zu erfolgen braucht, während die Ausfluchtung quer dazu weniger kritisch ist.A particularly simple embodiment of the device is obtained if the die has only two support parts with cutting edges that are parallel to one another. In addition, this embodiment has the advantage that the alignment of the die and punch in the press used only has to be carried out with a high degree of accuracy in the direction perpendicular to the cutting edges, while the alignment across is less critical.

Ausführungsbeispiele von erfindungsgemäßen Vorrichtungen werden nachstehend unter Bezugnahme auf die beigefügten Zeichnungen im einzelnen erläutert. Die Zeichnungen sind weitgehend schematisiert und auf das Wesentliche beschrankt; hinsichtlich des Aufbaus im einzelnen ist auf die eingangs erwähnte EP-PS zu verweisen.

  • Fig. 1 zeigt in Teilseitenansicht eine erste Ausführungsform, während die zu verbindenden Bleche im Schnitt gezeichnet sind,
  • Fig. 2 stellt analog zu Fig. 1 die Teile nach Beendigung des Fügevorgangs dar,
  • Fig. 3 zeigt perspektivisch im Teilschnitt eine mit der Vorrichtung nach Fig. 1 und 2 gefügte Verbindung, Fig. 4 ist eine Darstellung analog Fig. 3, jedoch in Richtung der Pfeile 4-4 in Fig. 3 gesehen,
  • Fig. 5 ist eine Draufsicht auf die Fügestelle nach Fig. 3,4,
  • Fig. 6, 7 und 8 zeigen Draufsichten auf die Matrizen weiterer Ausführungsformen von Vorrichtungen,
  • Fig. 9 stellt in Seitenansicht einen Stempel einer weiteren Ausführungsform dar,
  • Fig. 10 zeigt in zu Fig. 1 analoger Darstellung eine Matrize abweichender Konstruktion, und
  • Fig. 11 ist eine Ansicht auf die Matrize nach Fig. 10 in Richtung des Pfeiles 11.
Embodiments of devices according to the invention are explained in detail below with reference to the accompanying drawings. The drawings are largely schematic and limited to the essentials; with regard to the structure in detail, reference is made to the EP-PS mentioned at the beginning.
  • Fig. 1 shows a partial side view of a first embodiment, while the sheets to be connected are drawn in section,
  • 2 shows, analogously to FIG. 1, the parts after the joining process has ended,
  • 3 shows a perspective partial section of a connection made with the device according to FIGS. 1 and 2, FIG. 4 is an illustration analogous to FIG. 3, but seen in the direction of arrows 4-4 in FIG. 3,
  • 5 is a top view of the joint of FIG. 3, 4,
  • 6, 7 and 8 show top views of the matrices of further embodiments of devices,
  • 9 shows a side view of a stamp of a further embodiment,
  • FIG. 10 shows, in a representation analogous to FIG. 1, a die of a different construction, and
  • 11 is a view of the die of FIG. 10 in the direction of arrow 11.

Die Presse oder Pressenanordnung, in die die jeweils zusammengehörigen und zusammenwirkenden Teile -- Stempel einerseits, Matrize andererseits -- ausgefluchtet zueinander eingebaut sind, sind in den Zeichnungen nicht dargestellt. Die Wirkrichtung der Presse ergibt sich ohne weiteres aus der Zusammenschau der Fig. 1 und 2, welche die beider möglichen Relativlagen von Stempel und Matrize zu Beginn und am Ende des Pressenhubes zeigen.The press or press arrangement, in which the respectively associated and interacting parts - punch on the one hand, die on the other hand - are installed in alignment with one another, are not shown in the drawings. The direction of action of the press results from the summary of FIGS. 1 and 2, which show the two possible relative positions of the punch and die at the beginning and at the end of the press stroke.

Zunächst wird auf die Fig. 1 bis 5 bezuggenommen.First, reference is made to FIGS. 1 to 5.

Die Matrize umfaßt einen stationären, an seiner Unterseite in der Presse abgestützten Amboß 10 mit im wesentlichen langgestrecktem, rechteckigen Grundriß; Fig. 1 zeigt die Seitenansicht auf die Schmalseite. Längs der Breitseiten des Amboß' erstrecken sich Stützteile 12, die seitlich ausfedern können (Fig. 2) und deren dem Amboß zugewandte freie Kanten als Schneiden ausgebildet sind. Die von den beiden Schneiden definierte Ebene liegt um ein Maß höher als die etwas konvex gewölbte Arbeitsfläche 16 des Amboß', das kleiner ist als die Summe der Dicke beider Bleche 18. 20, jedoch größer als die Dicke des ihm zugekehrt liegenden Bleches 18.The die comprises a stationary anvil 10 supported on its underside in the press with an essentially elongated, rectangular plan; Fig. 1 shows the side view on the narrow side. Support parts 12 extend along the broad sides of the anvil and can extend laterally (FIG. 2) and whose free edges facing the anvil are designed as cutting edges. The plane defined by the two cutting edges is one dimension higher than the somewhat convexly curved working surface 16 of the anvil, which is smaller than the sum of the thickness of both sheets 18, 20, but greater than the thickness of the sheet 18 facing it.

Der Stempel 22 besitzt eine Arbeitsfläche 24, die -- wie Fig. 1 deutlich entnehmbar ist -- schmaler ist als dem Abstand der beiden Schne:Jen der Matrize voneinander entspricht. Ausgehend von dieser Arbeitsfläche vergrößert sich der Querschnitt des Stempels, so daß der in die Bleche eindringende Bereich die Form eines Pyramidenstumpfes mit rechteckiger Grundfläche aufweist, wobei der Neigungswinkel der Pyramidenseiten gegen die Stempelachse etwa 20c beträgt; das entspricht einem Spitzenwinkel von 40°. Das Maß, um jas die Arbeitsfläche 24 schmaler ist als der Schneidenabstand, richtet sich nach der Dicke der Bleche, insbesondere nach der Dicke des ihm zugewandten Blechs 20, und wirj vorzugsweise so bemessen (wofür wenige Versuche genügen), daß dieses Blech 20 beim Fügen gerade nicht mehr durchschnitten wird. Die die Arbeitsfläche 24 begrenzende Kante ist abgerundet, im Beispiel mit einem Radius in der Größenordnung von 0,5 mm, und poliert. Die Seitenflächen des pyramidenstumpfförmigen Stempelabschnittes sind mit 26 bezeichnet. Die Kontur des Stempels an den sich senkrecht zu den Schneiden erstreckenden Seiten ist in Fig. 1 und 2 nicht dargestellt, läßt sich aber Fig. 9 entnehmen, die einen Stempel zeig", der rechts anderes ist als eine Verdoppelung des Stempels aus Fig. 1 une 2. Es ist anzumerken, daß auch hier die Kontur etwa denselben Spitzenwinkel des Pyramidenstumpfes aufweist wie bei den schneidenparallelen Seiten.The punch 22 has a working surface 24 which - as can be clearly seen in FIG. 1 - is narrower than the distance between the two cutting edges: Jen corresponds to the die. Starting from this working surface, the cross section of the stamp increases, so that the area penetrating into the sheets has the shape of a truncated pyramid with a rectangular base, the angle of inclination of the pyramid sides relative to the stamp axis being approximately 20 c ; this corresponds to a tip angle of 40 °. The amount by which the work surface 24 is narrower than that The distance between the cutting edges depends on the thickness of the sheets, in particular on the thickness of the sheet 20 facing them, and is preferably dimensioned (for which a few attempts are sufficient) that this sheet 20 is no longer cut through when joining. The edge delimiting the working surface 24 is rounded, in the example with a radius of the order of 0.5 mm, and polished. The side faces of the truncated pyramid-shaped stamp section are designated by 26. The contour of the stamp on the sides extending perpendicular to the cutting edges is not shown in FIGS. 1 and 2, but can be seen in FIG. 9, which shows a stamp "that is different on the right than a doubling of the stamp from FIG. 1 une 2. It should be noted that here too the contour has approximately the same apex angle of the truncated pyramid as on the sides parallel to the cutting edge.

Während Fig. 1 den Zustand vor dem Fügen zeigt, läßt Fig. 2 das Ergebnis erkennen, das am Ende des Pressenhubes vorliegt (es ist anzumerken, daß entweder der Preßdruck oder der Pressenhub vorgegeben wird):

  • Das Blech 18 ist längs der Schneiden 14, die sich ja senkrecht zur Zeichnungsebene erstrecken, durch das ZusammenwirKen derselben mit dem Stempel 22 eingeschnitten worden, und der zwischen den Einschnitten stehengebliebene Steg 30 ist bis zur Arbeitsfläche 16 des Amboß' durchgedrückt worden. Durch weiteren Druck (und damit Hub) des Stempels 22 ist der durchgedrückte Bereich 32 des Blechs 20, das nicht eingeschnitten worden ist, derart fließverpreßt, daß sein Material hinter die freigeschnittenen Kanten 34 unter fester Verankerung an diesen plastisch verformt ist. Der durchaedrückte Steg 30 bleibt mit seinen Enden 36 am Blech hänger, da cort Kein Einschnitt erfolgt ist. Die Fig. 3 bis 5 lassen die so erzeugte Fügung erkennen.
While Fig. 1 shows the state before joining, Fig. 2 shows the result that is present at the end of the press stroke (it should be noted that either the press pressure or the press stroke is specified):
  • The sheet 18 has been cut along the cutting edges 14, which extend perpendicular to the plane of the drawing, by the interaction of the same with the stamp 22, and the web 30 which has remained between the cuts has been pushed through to the working surface 16 of the anvil. By further pressure (and thus stroke) of the punch 22, the pressed-through area 32 of the sheet 20, which has not been cut, is extruded so that its material is plastically deformed behind the cut edges 34 with firm anchoring to them. The pressed-through web 30 remains with its ends 36 on the sheet metal, because cort no incision has been made. 3 to 5 show the addition generated in this way.

Bei der bisher beschriebenen ersten Ausführungsform wurden zwei parallele Einschnitte im Blech 18 erzeugt; die Matrize und der Stempel haben dabei eine sehr einfache, kostengünstig herstellbare Form. Wenn besondere Anforderung an das Aussehen der Fügestellen gestellt werden, diese also etwa bei Gebrauchsgegenständen sichtbar sind, kann eine Ausführungsform der Vorrichtung bevorzugt sein, wie sie in den Fig. 6 bis 8 angedeutet ist. Diese Ausführungsformen sind nur als Draufsicht auf die Matrize dargestellt. Der Amboß 10' (Fig. 6) bzw. 10" (Fig. 7) hat die Form eines Zylinders, und die Stützteile 12' bzw. 12" haben Schneiden, welche das ihnen zugekehrt liegende Blech längs vier (Fig. 6) bzw. drei (Fig. 7) Kreisbögen mit gleichem Radius und gemeinsamem Mittelpunkt einschneiden. Zwischen den Einschnitten bleibt jeweils ein Steg stehen, der die Funktion der Stege 36 aus Fig. 3 hat. Die Arbeitsfläche der zugehörigen Stempel ist mit 24' bzw. 24" angedeutet; die Kontur dieser Stempel ist dann kegelstumpfförmig mit einem Spitzenwinkel von vorzugsweise 40 analog zu Fig. 1.In the first embodiment described so far, two parallel incisions were made in the sheet 18; the die and the stamp are very simple, inexpensive adjustable shape. If special requirements are placed on the appearance of the joining points, that is to say they are visible, for example, in everyday objects, an embodiment of the device as indicated in FIGS. 6 to 8 can be preferred. These embodiments are only shown as a top view of the die. The anvil 10 '(FIG. 6) or 10 "(FIG. 7) has the shape of a cylinder, and the support parts 12' or 12" have cutting edges which extend the sheet metal facing them along four (FIG. 6) or Cut three (Fig. 7) arcs with the same radius and common center. Between each of the incisions there remains a web which has the function of the webs 36 from FIG. 3. The working surface of the associated punches is indicated by 24 'or 24 "; the contour of these punches is then frustoconical with a tip angle of preferably 40, analogous to FIG. 1.

Bei der Ausführungsform nach Fig. 8 schließlich sind vier Stützteile 12"' um einen Amboß 10"' herum angeordnet, der einen quadratischen Grundriß aufweist; die Stege bleiben dann im Eckbereich jeweils stehen. Es ist anzumerken, daß unter Umständen auch auf stehenbleibende Stege verzichtet werden kann. Das würde in Fig. 6 und 7 eine geschlossen kreisförmige, in Fig. 8 eine geschlossen quadratische Einschnittform ergeben, mit dem Ergebnis, daß aus dem der Matrize zugekehrten Blech ein Plättchen mit entsprechendem Umriß ausgestanzt würde. Das Aussehen der Fügung wäre sehr ähnlich einem Nietkopf, doch müßte dafür gesorgt werden, daß nach jedem Arbeitsgang das ausgestanzte Plättchen aus der Matrize ausgeworfen wird.Finally, in the embodiment according to FIG. 8, four supporting parts 12 "'are arranged around an anvil 10"', which has a square outline; the webs then remain in the corner area. It should be noted that under certain circumstances it is also possible to dispense with standing webs. This would result in a closed circular incision shape in FIGS. 6 and 7, in FIG. 8 a closed square incision shape, with the result that a plate with a corresponding outline would be punched out of the sheet metal facing the die. The appearance of the joint would be very similar to a rivet head, but care would have to be taken to ensure that the die-cut plate is ejected from the die after each operation.

Der Stempel gemäß Fig. 9 ist als Doppelstempel ausgebildet, indem zwei Stempel gemäß Fig. 1 nebeneinander angeordnet und einstückig gefertigt sind. Man erkennt die beiden Arbeitsflächen 24a, 24b und die jeweils zugeordneten Flanken 28, die sich senkrecht zu den Schneiden erstrecken und ebenfalls einen Spitzenwinkel von 40° definieren. Die Schneiden der zugehörigen Matr:ze sind einfach entsprechend länger ausgebildet, so daß mit einem Pressenhub zwei nebeneinanderliegende Fügungen erzeugt werden.The stamp according to FIG. 9 is designed as a double stamp, in that two stamps according to FIG. 1 are arranged side by side and are made in one piece. One can see the two working surfaces 24a, 24b and the respectively assigned flanks 28, which extend perpendicular to the cutting edges and also define an apex angle of 40 °. The edges of the associated matrices are simply designed to be correspondingly longer, so that two adjacent joints are produced with one press stroke.

Fig. 10 und 11 zeigen eine Matrize, bei der die Stützteile auswechselbar sind.10 and 11 show a die in which the support parts are interchangeable.

Die Matrize umfaßt einen Sockel 118 mit einer ebenen, zu eine; Pressentisch (nicht gezeigt) parallelen Stützfläche 120 und einer sich dazu senkrecht erstreckenden ebenen Spannfläche 122. Senkrecht zur Spannfläche 122 ist eine Gewindebohrung 124 in den Sockel eingearbeitet.The die includes a base 118 with a flat, one; Press table (not shown) parallel support surface 120 and a flat clamping surface 122 extending perpendicular thereto. A threaded bore 124 is machined into the base perpendicular to the clamping surface 122.

Die Stützteile 126, 128 und der Amboß 130 sind getrennt gefertigte Komponenten. Der Amboß 130 ist ein Stahlprägeteil, und die Stützteile sind gestanzt und irr, Bereich ihrer Schneiden 132 -- sowohl auf ihrer dem Amboß zugekehrten wie auch auf ihrer ihm abgekehrten Seite sind die Stützteile mit einer Schneide versehen -- extra gehärtet oder hartbeschichtet und geschliffen. Amboß und Stützteile weisen Durchgangslöcher auf, cie im montierten Zustand mit der Gewindebohrung 124 fiuchten, wobei die beim Fügen einwirkenden Kräfte dadurch auf den Sockel übertragen werden, daß Stützteile und Amboß sich auf der Stützfläche 120 abstützen.The support members 126, 128 and anvil 130 are separately manufactured components. The anvil 130 is an embossed steel part, and the support parts are stamped and erroneous, the area of their cutting edges 132 - both on their side facing the anvil and on its side facing the support parts are provided with a cutting edge - specially hardened or hard-coated and ground. The anvil and support parts have through holes which, when assembled, are in alignment with the threaded bore 124, the forces acting on the joining being transmitted to the base in that the support parts and anvil are supported on the support surface 120.

Auf der der Spannfläche 122 abgekehrten Seite des Stützteiles 126 ist eine Sponnscheibe 134 vorgesehen, ebenfalls mit einer fluchtenden Durchgangs loch versehen. Die gesamte Baugruppe wird von einer Spannschraube 136 zusammengehalten. In Fig. 10 ist die Spannschraube noch nicht fest angezogen gezeichnet, so daß man erkennen kann, daß sie konvex auswärts gewölbt ist und so als Federscheibe wirkt. Mit ihrer unteren Kante liegt sie ebenfalls auf der Stützfläche 120 auf.On the side facing away from the clamping surface 122 of the support part 126, a clamping plate 134 is provided, also provided with an aligned through hole. The entire assembly is held together by a clamping screw 136. In Fig. 10 the clamping screw is not yet tightened so that you can see that it is convexly curved outwards and thus acts as a spring washer. With its lower edge, it also lies on the support surface 120.

Diese Ausführungsform hat den Vorteil, daß die Stützteile bei Verschleiß ihrer Schneiden zunächst gewendet und, wenn auch das zweite Schneidenpaar stumpf ist, ausgewechselt werden können. Daruberhinaus ist aber auch der Amboß auswechselbar. Erfahrungs- gemäß tritt zwar beim Amboß kein Verschleiß auf, doch ermöglicht dies die Fügung von Blechen anderer Dicke, was ja eine Änderung des Abstands der Schneiden 132 von der Amboßarbeitsfläche 138 bedingt.This embodiment has the advantage that the support parts can first be turned over when their cutting edges wear and, if the second pair of cutting edges is blunt, can be replaced. The anvil can also be replaced. Experience has shown that there is no wear on the anvil, but this enables the joining of sheets of different thickness, which in turn requires a change in the distance of the cutting edges 132 from the anvil working surface 138.

Die Oberkante 140 der Spannscheibe liegt auf derselben Höhe wie die Oberkante 142 der Spannfläche 122, so daß für beide Stützteile gleiche Einspannbedingungen vorliegen.The upper edge 140 of the clamping washer is at the same height as the upper edge 142 of the clamping surface 122, so that the same clamping conditions are present for both support parts.

Wie aus Fig. 11 entnehmbar ist, haben die Stützteile eine Kontur mit seitlichen Ausschnitten, damit sich die Biegebeanspruchung beim seitlichen Ausfedern möglichst gleichförmig auf die Länge der Stützteile verteilt.As can be seen from FIG. 11, the support parts have a contour with lateral cutouts, so that the bending stress during lateral rebound is distributed as uniformly as possible over the length of the support parts.

Claims (13)

1) Durchsetzfügeverfahren, bei dem zwei flächig aufeinanderliegende Bleche durch Einschneiden, Durchdrücken von Blechmaterial und Fließverpressen des durchgedrückten Materials hinter den Einschnitten miteinander verbunden werden, dadurch gekennzeichnet, daß nur eines der Bleche mit Einschnitten versehen wird und das durchgedrückte Material auf der dem andern Blech abgewandten Seite des eingeschnittenen Blechs fließverpreßt wird.1) clinching method, in which two sheets lying flat on top of each other by cutting, pushing through sheet material and extrusion of the pressed material behind the incisions are connected to each other, characterized in that only one of the sheets is provided with cuts and the pressed material on the other facing away from the other sheet Side of the cut sheet is extruded. 2) Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß das eine Blech mit-zwei zueinander parallelen geraden Einschnitten versehen wird.2) Method according to claim 1, characterized in that the one sheet is provided with two parallel incisions parallel to each other. 3) Durchsetzfügevorrichtung zum Verbinden flächig aufeinander liegender Bleche, umfassend eine Matrize mit einem mittleren Amboßteil und mit über eine Amboßarbeitsfläche vorstehenden, auswärts bezüglich des Amboß' federnd angeordneten und mit Schneiden an ihrem freien Ende versehenen Stützteilen, sowie einen Stempel, der relativ zu der Matrize durch die Bleche hindurch auf die Amboßarbeitsfläche zu bewegbar ist, dadurch gekennzeichnet, daß der Stempel zumindest im Bereich seiner dem Amboß zugekehrten Arbeitsfläche schmaler ist als der durch den Abstand der Schneiden definierte Durchdrückbereich.3) clinching device for joining sheet metal lying flat on top of one another, comprising a die with a central anvil part and with support parts projecting beyond an anvil working surface, which are resiliently arranged with respect to the anvil and provided with cutting edges at their free end, and a punch which is relative to the die can be moved through the sheets towards the anvil work surface, characterized in that the punch is narrower than the push-through region defined by the spacing of the cutting edges, at least in the region of its work surface facing the anvil. 4) Durchsetzfügevorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß der Stempel ausgehend von seiner Arbeitsfläche eine kegelstumpf- bzw. pyramidenstumpfförmige Gestalt aufweist.4) clinching device according to claim 3, characterized in that the stamp has a truncated cone or truncated pyramid shape starting from its working surface. 5) Durchsetzfügevorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß der Spitzenwinkel des Kegel- bzw. Pyramidenstumpfs zwischen 30° und 50° liegt, vorzugsweise bei 40°.5) clinching device according to claim 4, characterized in that the apex angle of the truncated cone or truncated pyramid is between 30 ° and 50 °, preferably 40 °. 6) Durchsetzfügevorrichtung nach Anspruch 4 oder 5, dadurch gekennzeichnet, daß die die Stempelarbeitsfläche begrenzende Kante abgerundet ist.6) clinching device according to claim 4 or 5, characterized in that the edge delimiting the stamp work surface is rounded. 7) Durchsetzfügevorrichtung nach Anspruch 6 für Bleche bis zu einer Dicke von 2 mm, dadurch gekennzeichnet, daß der Abrundungsradius in der Größenordnung von 0,5 mm liegt.7) clinching device according to claim 6 for sheets up to a thickness of 2 mm, characterized in that the rounding radius is of the order of 0.5 mm. 8) Durchsetzfügevorrichtung nach einem der Ansprüche 3 bis 7, gekennzeichnet durch Stützteile mit je einer geraden Schneide, welche beiden Schneiden zueinander parallel sind.8) clinching device according to one of claims 3 to 7, characterized by supporting parts each having a straight cutting edge, which two cutting edges are parallel to each other. 9) Durchsetzfügevorrichtung nach einem der Ansprüche 3 bis 7, dadurch gekennzeichnet, daß daß oie Schneiden aller Stützteile auf Kreisbögen mit gleichem Radi-us und gemeinsamem Mittelpunkt liegen.9) clinching device according to one of claims 3 to 7, characterized in that the cutting of all support parts lie on circular arcs with the same radius and a common center. 10) Durchsetzfügevorrichtung nach einem der Ansprüche 3 bis 7, gekennzeichnet durch Stützteile mit zwei Paaren von zueinander senkrecht verlaufenden Schneiden.10) clinching device according to one of claims 3 to 7, characterized by supporting parts with two pairs of mutually perpendicular cutting edges. 11) Durchsetzfügevorrichtung nach Anspruch 8, dadurch gekennzeichnet, daß einer Matrize ein Doppelstempel mit zwei in Richtung der Schneidenerstreckung nebeneinanderliegenden Arbeitsflächen zugeordnet ist.11) clinching device according to claim 8, characterized in that a die is assigned a double punch with two adjacent work surfaces in the direction of the cutting edge extension. 12) Durchsetzfjgevorrichtung nach Anspruch 8 oder 11, dadurch gekennzeichnet, daß die Stützteile der Matrize austauschbar sind.12) Durchsetzfjgevorrichtung according to claim 8 or 11, characterized in that the support parts of the die are interchangeable. 13) Durchsetzfjugung zweier flächig aufeinanderliegender Bleche, bei der nur eines der Bleche Einschnitte aufweist, zwischen denen Material des angern Blechs durchgedrückt und auf der ihm abgewandten Seite des mit Einschnitten versehenen Bleches hinter die Einschnittkannen fließverpreßt ist.13) Durchsetzfjugung two sheets lying flat on top of each other, in which only one of the sheets has incisions, between which material of the other sheet is pressed and is extruded behind the incision cans on the side of the sheet provided with incisions facing away from it.
EP85102777A 1984-03-22 1985-03-12 Method for connecting metal sheets together Expired - Lifetime EP0155619B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85102777T ATE49521T1 (en) 1984-03-22 1985-03-12 ENFORCEMENT PROCEEDINGS.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19848408793 DE8408793U1 (en) 1984-03-22 1984-03-22 Device for connecting sheet metal lying flat on top of one another
DE19848408792 DE8408792U1 (en) 1984-03-22 1984-03-22 Device for connecting sheet metal lying flat on top of one another by means of pressing through and extrusion
DE8408793U 1984-03-22
DE8408792U 1984-03-22

Publications (3)

Publication Number Publication Date
EP0155619A2 true EP0155619A2 (en) 1985-09-25
EP0155619A3 EP0155619A3 (en) 1987-01-21
EP0155619B1 EP0155619B1 (en) 1990-01-17

Family

ID=25949886

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85102777A Expired - Lifetime EP0155619B1 (en) 1984-03-22 1985-03-12 Method for connecting metal sheets together

Country Status (4)

Country Link
US (1) US4658502A (en)
EP (1) EP0155619B1 (en)
DE (1) DE3575386D1 (en)
ES (1) ES285525Y (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3713083A1 (en) * 1986-04-17 1987-10-29 Btm Corp DEVICE FOR JOINING SHEETS
EP0423544A1 (en) * 1989-10-18 1991-04-24 WALTER ECKOLD GmbH & Co. KG Vorrichtungs- und Gerätebau Method of connecting two components
GB2244946A (en) * 1990-06-01 1991-12-18 Fairacre Ltd Die-and-punch apparatus for joining sheet metal
WO1994025196A1 (en) * 1993-05-04 1994-11-10 Homax Ag Improvements relating to tools for cold flow forming of assembly points in sheet metal
DE19720867C1 (en) * 1997-05-06 1998-09-03 Brose Fahrzeugteile Fastening system for motor vehicle door frame attachments
DE102018103961A1 (en) 2018-02-22 2019-08-22 Schaeffler Technologies AG & Co. KG Variable valve train of a combustion piston engine

Families Citing this family (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4752993A (en) * 1985-07-22 1988-06-28 Oaks Daniel V Fastener and method of attachment to sheet material
US4905362A (en) * 1986-08-29 1990-03-06 Reo Hydraulics Pierce And Form, Inc. Clinching tool
US4930203A (en) * 1986-08-29 1990-06-05 Lamb Robo Inc. Clinching tool
US4803767A (en) * 1986-08-29 1989-02-14 Lamb Robo Clinching tool
US4825525A (en) * 1986-08-29 1989-05-02 Obrecht Robert E Clinching tool
DE3640896A1 (en) * 1986-11-29 1988-06-16 Eckold Vorrichtung METHOD AND DEVICE FOR RIVETLY JOINING SHEETS
US4856316A (en) * 1987-07-08 1989-08-15 Weldex, Inc. Apparatus for forming joints
US4897912A (en) * 1987-07-08 1990-02-06 Weldex, Inc. Method and apparatus for forming joints
DE3836937A1 (en) * 1988-10-29 1990-05-03 Eckold Vorrichtung ENFORCEMENT DEVICE
US5051020A (en) * 1989-11-13 1991-09-24 Tech-Line Engineering Co. Leak proof joint
US5315743A (en) * 1990-05-18 1994-05-31 Tech-Line Engineering Co. Apparatus for forming a clinch joint
US5305517A (en) * 1991-09-23 1994-04-26 Schleicher Louis C Apparatus for forming clinch joints
US5259102A (en) * 1992-04-13 1993-11-09 Reo Hydraulic Pierce & Form, Inc. Clinching tool
US5230136A (en) * 1992-05-04 1993-07-27 Savair Inc. Punch and die set for sheet metal clinching
JP3384606B2 (en) * 1993-12-27 2003-03-10 三洋機工株式会社 Joining structure and joining method of metal plate material
US5984563A (en) * 1994-07-22 1999-11-16 Btm Corporation Apparatus for joining sheet material and joint formed therein
US5718142A (en) * 1995-07-20 1998-02-17 Ferraro; Ronald M. Metal stitcher
JPH11187542A (en) * 1997-12-18 1999-07-09 Furukawa Electric Co Ltd:The Manufacture of bus-bar wiring board
EP1115518B1 (en) * 1998-09-25 2003-03-19 Technische Universität Dresden Method and device for connecting overlapping flat parts
US6430794B1 (en) 2000-05-17 2002-08-13 Mckee James E. Female crimping die and system for crimping metal sheets
GB2369317B (en) * 2000-11-28 2002-10-02 Colin Maxwell Wade Ductile material lance joiner
US7121047B2 (en) * 2001-05-14 2006-10-17 Stepfast, Ltd. Flashing assembly
JP4018885B2 (en) * 2001-05-25 2007-12-05 株式会社三井ハイテック Laminated iron core
US20060283684A1 (en) * 2004-07-14 2006-12-21 Thomas Beerens Centrifugal drum clutch assembly and method of manufacture
DE202005013514U1 (en) * 2005-08-26 2007-01-04 Marantec Antriebs- Und Steuerungstechnik Gmbh & Co. Kg Spindle nut used as component of drive device e.g. shutter drive device has tube pushed over cylindrical shoulder of spindle nut and deformed toward recess in region of recesses and deformed regions contact walls of recess
MX2009007789A (en) * 2007-02-13 2009-07-31 Inventio Ag Method and tool for clinching thick sheet metal, and use of the tool.
US7762034B2 (en) * 2008-09-26 2010-07-27 Chicago Metallic Corporation Rotary stitch for joining sheet metal stock
US8024848B2 (en) * 2008-10-08 2011-09-27 GM Global Technology Operations LLC Double-action clinching method
US8650730B2 (en) * 2009-02-23 2014-02-18 Btm Corporation Clinching tool
US8835017B2 (en) * 2009-07-29 2014-09-16 Yuan Deng Metals Industrial Co., Ltd. Metal sheet member having high plastic bonding strength
KR101180942B1 (en) * 2009-12-04 2012-09-07 현대자동차주식회사 Suspension arm
DE102011122037A1 (en) * 2011-12-22 2013-06-27 Kathrein-Werke Kg Method for producing a high-frequency electrical connection between two plate sections and an associated high-frequency electrical connection
RU2601640C2 (en) * 2012-07-27 2016-11-10 Джузеппе ЧИПРИАНИ Rack for suspended ceiling support structure and method of rack processing
ITVR20130040A1 (en) 2013-02-14 2014-08-15 Giuseppe Cipriani METAL STRUCTURE FOR SUPPORTING A CEILING.
ITVR20130058A1 (en) 2013-03-08 2014-09-09 Giuseppe Cipriani PROFILE OF A STRUCTURE SUPPORTING A FALSE CEILING AND PROCESS OF PROCESSING TO WORK THE PROFILE.
CN103801813B (en) * 2014-01-17 2015-08-26 西安交通大学 The composite connecting device of pressing sheet material is directly driven based on inversion electric resistance welding and AC servo
US10328481B2 (en) * 2014-03-18 2019-06-25 Btm Company Llc Clinching punch and apparatus
JP7126524B2 (en) * 2018-01-24 2022-08-26 武延 本郷 FIXING DEVICE, FIXING METHOD AND STRUCTURE

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1446095A (en) * 1919-11-28 1923-02-20 Karaus Joseph Process of making reeds
US2713197A (en) * 1952-01-23 1955-07-19 Budd Co Method and apparatus for making an integral rivet connection
DE1003061B (en) * 1955-04-07 1957-02-21 Kronprinz Ag Method for connecting the rim to the wheel disc of disc wheels
US2811880A (en) * 1953-10-09 1957-11-05 Ivan A Williams Adjustable dies for uniting materials
US3031748A (en) * 1959-12-01 1962-05-01 E J Lavino & Co Method of joining refractory brick channels and hangers
US3276112A (en) * 1964-04-06 1966-10-04 Fruehauf Corp Method and apparatus for making integral rivet connections
DE1627756A1 (en) * 1966-09-30 1970-03-19 Lucas Industries Ltd Method and device for connecting two, in particular thin-walled parts
US3828517A (en) * 1971-10-27 1974-08-13 V Johnson Metal layer rivetform and two layer assembly
DE2841937A1 (en) * 1978-09-27 1980-04-10 Hermann Hillmer Riveted joint for materials of different strengths - has stronger material deformed into rivet projection by punch and die
GB2104430A (en) * 1981-08-24 1983-03-09 Gillette Co Securing a razor blade to a support
EP0077932B1 (en) * 1981-10-28 1984-12-27 WALTER ECKOLD GmbH & Co. KG Vorrichtungs- und Gerätebau Apparatus for making a riveted joint of metal sheets

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2288308A (en) * 1941-04-07 1942-06-30 Ivan A Williams Punch and die
US2671361A (en) * 1950-07-06 1954-03-09 Houdaille Hershey Corp Apparatus for securing together a plurality of sheets
US2688890A (en) * 1952-08-09 1954-09-14 Ivan A Williams Method of uniting superimposed metal sheets
US2924312A (en) * 1954-11-29 1960-02-09 Ivan A Williams Punch and die assembly for making interlocking integral fasteners
US3130489A (en) * 1960-07-11 1964-04-28 Schlage Lock Co Method of fastening together pieces of material
NL133141C (en) * 1964-05-20
US3579809A (en) * 1968-12-13 1971-05-25 Frantz Mfg Co Method of joining sheets of rigid deformable material
US3729804A (en) * 1970-08-19 1973-05-01 Olin Corp Method of making a mechanical joint
US3726000A (en) * 1971-05-25 1973-04-10 O Hafner Means for fastening overlying metal sheets
US3771216A (en) * 1971-10-27 1973-11-13 Johnson Die & Eng Co Method and tooling for extruding a closed end rivet
US3828421A (en) * 1972-11-02 1974-08-13 Polaroid Corp Method of clamping and riveting parts
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
US4208776A (en) * 1977-09-15 1980-06-24 Schleicher Louis C Punch, die and anvil set
US4130922A (en) * 1977-11-07 1978-12-26 Akh Inc. Headless riveting system
US4306511A (en) * 1979-12-03 1981-12-22 Dofasco Inc. Apparatus for the fastening together of sheet materials
US4459735A (en) * 1980-09-08 1984-07-17 Btm Corporation Joining sheet metal

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1446095A (en) * 1919-11-28 1923-02-20 Karaus Joseph Process of making reeds
US2713197A (en) * 1952-01-23 1955-07-19 Budd Co Method and apparatus for making an integral rivet connection
US2811880A (en) * 1953-10-09 1957-11-05 Ivan A Williams Adjustable dies for uniting materials
DE1003061B (en) * 1955-04-07 1957-02-21 Kronprinz Ag Method for connecting the rim to the wheel disc of disc wheels
US3031748A (en) * 1959-12-01 1962-05-01 E J Lavino & Co Method of joining refractory brick channels and hangers
US3276112A (en) * 1964-04-06 1966-10-04 Fruehauf Corp Method and apparatus for making integral rivet connections
DE1627756A1 (en) * 1966-09-30 1970-03-19 Lucas Industries Ltd Method and device for connecting two, in particular thin-walled parts
US3828517A (en) * 1971-10-27 1974-08-13 V Johnson Metal layer rivetform and two layer assembly
DE2841937A1 (en) * 1978-09-27 1980-04-10 Hermann Hillmer Riveted joint for materials of different strengths - has stronger material deformed into rivet projection by punch and die
GB2104430A (en) * 1981-08-24 1983-03-09 Gillette Co Securing a razor blade to a support
EP0077932B1 (en) * 1981-10-28 1984-12-27 WALTER ECKOLD GmbH & Co. KG Vorrichtungs- und Gerätebau Apparatus for making a riveted joint of metal sheets

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3713083A1 (en) * 1986-04-17 1987-10-29 Btm Corp DEVICE FOR JOINING SHEETS
EP0423544A1 (en) * 1989-10-18 1991-04-24 WALTER ECKOLD GmbH & Co. KG Vorrichtungs- und Gerätebau Method of connecting two components
US5203812A (en) * 1989-10-18 1993-04-20 Eckold Gerd Juergen Method of connecting two components
GB2244946A (en) * 1990-06-01 1991-12-18 Fairacre Ltd Die-and-punch apparatus for joining sheet metal
WO1994025196A1 (en) * 1993-05-04 1994-11-10 Homax Ag Improvements relating to tools for cold flow forming of assembly points in sheet metal
FR2704785A1 (en) * 1993-05-04 1994-11-10 Homax Ag Improvements to tools for the realization of assembly points of sheets by cold creep.
DE19720867C1 (en) * 1997-05-06 1998-09-03 Brose Fahrzeugteile Fastening system for motor vehicle door frame attachments
US6688043B1 (en) 1997-05-06 2004-02-10 Brose Fahrzeugteile Gmbh & Co. Kg Device and method for securing a component to a support part in a vehicle
DE102018103961A1 (en) 2018-02-22 2019-08-22 Schaeffler Technologies AG & Co. KG Variable valve train of a combustion piston engine

Also Published As

Publication number Publication date
US4658502A (en) 1987-04-21
EP0155619B1 (en) 1990-01-17
ES285525U (en) 1985-11-01
DE3575386D1 (en) 1990-02-22
EP0155619A3 (en) 1987-01-21
ES285525Y (en) 1987-02-16

Similar Documents

Publication Publication Date Title
EP0155619B1 (en) Method for connecting metal sheets together
DE4333052C2 (en) Self-punching fastening device
EP0697267B1 (en) Mounting device for a tool or a workpiece
DE69317303T2 (en) SELF-PUNCHED RIVETS
EP0077932B1 (en) Apparatus for making a riveted joint of metal sheets
DE3905788C2 (en) Cutting tool to cut pipes to make them easier to bend
DE3106313A1 (en) DEVICE AND METHOD FOR JOINING SHEETS
DE3404118C2 (en)
DE1540154B2 (en) ELECTRICAL CONNECTOR FIXED IN THE HOLE OF A PLATE MADE OF HARD, SPROEDEM AND ONLY WEIGHTLY ELASTIC MATERIAL
DE68905200T2 (en) PANEL HOLES.
EP0050242A2 (en) Connection of frame elements for furniture, in particulier office furniture
DE1285258B (en) Connection between a metal plate and a nut and method of making the connection
EP1013945A1 (en) Self-piercing rivet
DE2648637A1 (en) METHOD OF ATTACHING A NUT TO A SUPPORT PLATE
DE8408792U1 (en) Device for connecting sheet metal lying flat on top of one another by means of pressing through and extrusion
AT510711B1 (en) BENDING TOOL AND BENDING TOOL ASSEMBLY
EP0841492B1 (en) Connecting device.
DE19613180A1 (en) Flow-pressing of shaped component
DE3643741C2 (en) Method of making a cabinet case
DE102018219136B3 (en) Connector and method of assembling a connector
EP0525327B1 (en) Cutting die
DE3701895C1 (en) Apparatus for joining elements resting flat upon one another, for example metal sheets, by the joggling method
WO2023208671A1 (en) Clinching connection
DE102018008485B3 (en) Connecting part and method for connecting two components of a connection part
DE3820932A1 (en) Method and apparatus for manufacturing multi-grooved pulleys, as well as a multi-grooved pulley manufactured according to this method

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

17P Request for examination filed

Effective date: 19870207

17Q First examination report despatched

Effective date: 19880323

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

REF Corresponds to:

Ref document number: 49521

Country of ref document: AT

Date of ref document: 19900215

Kind code of ref document: T

ET Fr: translation filed
REF Corresponds to:

Ref document number: 3575386

Country of ref document: DE

Date of ref document: 19900222

ITF It: translation for a ep patent filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
ITTA It: last paid annual fee
EPTA Lu: last paid annual fee
EAL Se: european patent in force in sweden

Ref document number: 85102777.1

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19990319

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 19990331

Year of fee payment: 15

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000312

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000331

BERE Be: lapsed

Owner name: MAASS HANS

Effective date: 20000331

Owner name: ECKOLD GERD-JURGEN

Effective date: 20000331

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20010214

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20010219

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20010226

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20010305

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20010313

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20010330

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20010523

Year of fee payment: 17

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020312

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020312

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020313

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020331

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021001

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021001

EUG Se: european patent has lapsed

Ref document number: 85102777.1

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20020312

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021129

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20021001

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST