EP3527299A1 - Matrix for a joining tool - Google Patents

Matrix for a joining tool Download PDF

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Publication number
EP3527299A1
EP3527299A1 EP19152135.0A EP19152135A EP3527299A1 EP 3527299 A1 EP3527299 A1 EP 3527299A1 EP 19152135 A EP19152135 A EP 19152135A EP 3527299 A1 EP3527299 A1 EP 3527299A1
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EP
European Patent Office
Prior art keywords
sleeve
slots
anvil
sliding pieces
die according
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
EP19152135.0A
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German (de)
French (fr)
Other versions
EP3527299B1 (en
Inventor
Florian Unger
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.)
Eckold GmbH and Co KG
Walter Eckold GmbH and Co KG Vorrichtungs und Geraetebau
Original Assignee
Eckold GmbH and Co KG
Walter Eckold GmbH and Co KG Vorrichtungs und Geraetebau
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Publication of EP3527299A1 publication Critical patent/EP3527299A1/en
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Publication of EP3527299B1 publication Critical patent/EP3527299B1/en
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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
    • B21D39/031—Joining superposed plates by locally deforming without slitting or piercing
    • 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
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/10—Die sets; Pillar guides
    • 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
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/10—Die sets; Pillar guides
    • B21D37/12—Particular guiding equipment, e.g. pliers; Special arrangements for interconnection or cooperation of dies
    • 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

Definitions

  • the invention relates to a die for a joining tool, in particular for clinching, with an anvil and a shoulder coaxially surrounding the anvil, which is formed on a base body of the anvil or through one end of a socket, and a sleeve surrounding the base body or the sleeve, having over its circumference through its wall passing radial slots, in each of which a sliding piece is movably guided in the radial direction, which is supported in the axial direction at least on the heel.
  • Such a template is for example from the EP 1 468 758 B1 known.
  • Through the slots in the shell of the sleeve tracks are created for the sliding pieces, through which they receive additional guidance in addition to the support surface on the shoulder of the body.
  • Such a die is compact in height and diameter.
  • the die cooperates with a tool punch and serves to join together with the tool punch two joining parts, such as sheets, by forming the material.
  • the counter tool used for joining consists of a downholder and a punch. While the punch acts on the base or anvil, the hold-down is supported on the sleeve.
  • the sleeve must be made of a hard and tough material, which not only has the disadvantage correspondingly high costs in itself, but is also relatively difficult to work, which in turn high-quality tools for introducing the slots in the wall the sleeve is required, so that the production of the sleeve is correspondingly costly and time consuming.
  • Similar matrices are from the DE 10 2004 033 228 A1 or DE 101 16 736 A1 known.
  • the anvil is provided with a paragraph, nor is a sleeve arranged in the base body.
  • the main body is formed in one piece and the sliding pieces slide exclusively in the slots provided in the body bearing surfaces or provided in the anvil grooves.
  • the matrix described above should be improved so that the transferable from the sleeve forces can be increased and thereby either cost-effective material used or higher hold-down forces can be absorbed.
  • a generic die is characterized in that the wall of the sleeve at the end surrounding the paragraph in the area between the slots radially inwardly widened areas each extending between two adjacent sliding pieces and in the radial direction the paragraph at least partially overtop.
  • the hold-down is applied to a large area during joining, whereby the sleeve can absorb higher forces and their load is reduced by the force of the hold-down.
  • the sliding pieces are L-shaped in cross section with a foot and a head, and the slots have an upper and a lower wall in the axial direction. This configuration ensures the guidance of the sliding pieces in the sleeve.
  • the feet of the sliding pieces have a groove in the radial direction and the wall of the sleeve is provided with a circumferential groove at the level of the slots, a spring element encompassing all the sliding pieces can be inserted into the grooves, which effects the restoring forces on the sliding pieces.
  • the spring element may be a steel spring ring or a polymer spring.
  • the widened portions of the sleeve begin at the level of the lower walls of the slots.
  • the areas that can serve the power transmission optimized.
  • At least one of the walls of the slots can have a guide element and the associated sliding piece a counter-guide congruent thereto.
  • This guide / Jacob Insert can be realized by projections and grooves.
  • the anvil and the sleeve By increasing the force that can be absorbed by the sleeve, different materials can be chosen for the anvil and the sleeve, wherein the anvil is made of a harder material than the sleeve.
  • the anvil can be fixed or driven in the axial direction.
  • the joining tool consists essentially of the die 1 and the tool carrier 2 arranged above it and serves to connect the two sheets 3, 4 by forming each other.
  • a stamp is arranged, which is surrounded by the hold-5 coaxially.
  • the hold-5 is based on the joining on the upper plate 3, while the punch causes the deformation of the two sheets 3, 4 and the sheets 3, 4 point-shaped interconnect.
  • the die 1 consists of the base body 10, on which an upper circumferential shoulder 11 is formed, to which an anvil coaxial connects 12, and the sleeve 20 with the sliding pieces 30 arranged thereon.
  • the main body 10 can in the sleeve 20 in the axial direction A slidably driven or fixed mounted.
  • the anvil 12 is slidably disposed in the axial direction A, it is from a surround additional socket 50 ( FIG. 8 ).
  • the sliding pieces 30 are formed in cross-section L-shaped with a foot 31 and a head 32.
  • the wall 21 of the sleeve 20 In the wall 21 of the sleeve 20 according to the number of sliding pieces 30 in the radial direction R continuous slots 22 are provided, in which the feet 31 of the sliding pieces 30th are recorded in a sliding manner.
  • the wall 21 of the sleeve 20 is provided with an outer circumferential groove 23 into which the slots 22 open.
  • the feet 31 of the sliding pieces 30 have a groove 33, in which a spring element 40, for example, a steel spring or a polymer element is inserted, which forces the sliding pieces 30 radially inward, so that they lean against the anvil 12 in the unloaded state and on the Paragraph 11.
  • the task of the paragraph 11 takes over the socket 50 and the upper end 51 on which slide the sliding pieces 30.
  • the wall 21 of the sleeve 20 between the slots 22 is widened radially inward, so that widened areas 23 result, each extending between two adjacent sliding pieces 30 and in the radial direction R the paragraph 11 of the body 10 and projecting beyond the upper end of the sleeve 50 formed paragraph 51.
  • the hold-down device 5, which acts on the sheets 3, 4 is supported in these widened regions 23 of the sleeve 20 of the die 1. If the punch further deforms the sheets 3, 4 in the axial direction, it is supported on the anvil 12 and the material displaced from the sheets 3, 4 forces the base 10 in the axial direction A downwards and the sliding pieces 30 in the radial direction R. outward against the force of the spring element 40. In this case, the spring elements 30 slide in the slots 22 and are based on the heel 11 of the body 10 from.
  • Grooves 22.3, 22.4 are provided in the upper wall 22.1 and the lower wall 22.2 of the slots 22, in which projections 33.1, 33.2 provided on the feet 31 of the sliding pieces 30 are slidably guided.
  • the sleeve 20 is provided with axial cutouts 24, which are executed continuously, whereby the widened portions 33 protrude upwards. This ensures that the die 1 or the sleeve 20 always rests with the widened regions 23 on the underside of the sheet 4, even if the die 1 is not aligned exactly plane-parallel to the sheet 4. An overload of the wall 21 in the region of the slots 22 is thereby reliably avoided because no force can act on it by the hold-down 5.

Abstract

Eine Matrize für ein Fügewerkzeug, insbesondere zum Durchsetzfügen, mit einem Amboss (12) und einem den Amboss (12) koaxial umgebenden Absatz (11, 51), der an einem Grundkörper (10) des Ambosses (12) oder durch ein Ende (51) einer Buchse (50) ausgebildet ist, und einer den Grundkörper (10) bzw. die Buchse (50) umgebenden Hülse (20), die über ihren Umfang durch ihre Wandung (21) hindurchgehende radiale Schlitze (22) aufweist, in denen jeweils ein Schiebestück (30) in radialer Richtung (R) beweglich geführt ist, das sich in axialer Richtung (A) zumindest auf dem Absatz (11, 51) abstützt, zeichnet sich dadurch aus, dass die Wandung (21) der Hülse (20) an dem den Absatz (11, 51) umgebenden Ende (20.1) in dem Bereich zwischen den Schlitzen (22) nach radial innen verbreiterte Bereiche (23) aufweist, die sich jeweils zwischen zwei benachbarte Schiebestücke (30) erstrecken und in radialer Richtung (R) den Absatz (11) zumindest teilweise überragen.A die for a joining tool, in particular for clinching, comprising an anvil (12) and a shoulder (11, 51) coaxially surrounding the anvil (12) and attached to a base body (10) of the anvil (12) or through an end (51 ) of a bushing (50) is formed, and a sleeve (20) surrounding the base body (10) or the bushing (50), which has radial slots (22) passing through its wall (21) over its circumference, in each of which a sliding piece (30) in the radial direction (R) is movably guided, which is supported in the axial direction (A) at least on the shoulder (11, 51), characterized in that the wall (21) of the sleeve (20) has at the paragraph (11, 51) surrounding the end (20.1) in the area between the slots (22) radially inwardly widened areas (23), each extending between two adjacent sliding pieces (30) and in the radial direction (R ) at least partially exceed paragraph (11).

Description

Die Erfindung betrifft eine Matrize für ein Fügewerkzeug, insbesondere zum Durchsetzfügen, mit einem Amboss und einem den Amboss koaxial umgebenden Absatz, der an einem Grundkörper des Ambosses oder durch ein Ende einer Buchse ausgebildet ist, und einer den Grundkörper bzw. die Buchse umgebenden Hülse, die über ihren Umfang durch ihre Wandung hindurchgehende radiale Schlitze aufweist, in denen jeweils ein Schiebestück in radialer Richtung beweglich geführt ist, das sich in axialer Richtung zumindest auf dem Absatz abstützt.The invention relates to a die for a joining tool, in particular for clinching, with an anvil and a shoulder coaxially surrounding the anvil, which is formed on a base body of the anvil or through one end of a socket, and a sleeve surrounding the base body or the sleeve, having over its circumference through its wall passing radial slots, in each of which a sliding piece is movably guided in the radial direction, which is supported in the axial direction at least on the heel.

Eine solche Matrize ist beispielsweise aus der EP 1 468 758 B1 bekannt. Durch die Schlitze im Mantel der Hülse werden für die Schiebestücke Führungsbahnen geschaffen, durch die diese neben der Stützfläche auf dem Absatz des Grundkörpers eine zusätzliche Führung erhalten. Eine solche Matrize ist hinsichtlich ihrer Höhe und ihres Durchmessers kompakt gebaut. Die Matrize wirkt mit einem Werkzeugstempel zusammen und dient dazu, zusammen mit dem Werkzeugstempel zwei Fügeteile, beispielsweise Bleche, miteinander durch Umformen des Werkstoffs zu verbinden. Insbesondere beim Durchsetzfügen (Clinchen) wirken auf die Matrize hohe Kräfte. Das zum Fügen verwendete Gegenwerkzeug besteht aus einem Niederhalter und einem Stempel. Während der Stempel auf den Grundkörper bzw. Amboss einwirkt, stützt sich der Niederhalter auf der Hülse ab. Damit ausreichend hohe Kräfte übertragen werden können, muss die Hülse aus einem harten und zähen Material bestehen, das nicht nur den Nachteil entsprechend hoher Kosten in sich birgt, sondern auch relativ schwer zu bearbeiten ist, was wiederum hochwertige Werkzeuge zum Einbringen der Schlitze in die Wandung der Hülse bedarf, sodass die Herstellung der Hülse entsprechend kostenträchtig und zeitaufwendig ist.Such a template is for example from the EP 1 468 758 B1 known. Through the slots in the shell of the sleeve tracks are created for the sliding pieces, through which they receive additional guidance in addition to the support surface on the shoulder of the body. Such a die is compact in height and diameter. The die cooperates with a tool punch and serves to join together with the tool punch two joining parts, such as sheets, by forming the material. In particular, when clinching (clinching) act on the die high forces. The counter tool used for joining consists of a downholder and a punch. While the punch acts on the base or anvil, the hold-down is supported on the sleeve. So that sufficiently high forces can be transmitted, the sleeve must be made of a hard and tough material, which not only has the disadvantage correspondingly high costs in itself, but is also relatively difficult to work, which in turn high-quality tools for introducing the slots in the wall the sleeve is required, so that the production of the sleeve is correspondingly costly and time consuming.

Ähnliche Matrizen sind aus der DE 10 2004 033 228 A1 oder DE 101 16 736 A1 bekannt. Hier ist aber weder der Amboss mit einem Absatz versehen, noch ist eine Hülse im Grundkörper angeordnet. Der Grundkörper ist einteilig ausgebildet und die Schiebestücke gleiten ausschließlich in den Schlitzen auf in dem Grundkörper vorgesehenen Auflageflächen bzw. in im Amboss vorgesehenen Nuten.Similar matrices are from the DE 10 2004 033 228 A1 or DE 101 16 736 A1 known. Here, however, neither the anvil is provided with a paragraph, nor is a sleeve arranged in the base body. The main body is formed in one piece and the sliding pieces slide exclusively in the slots provided in the body bearing surfaces or provided in the anvil grooves.

Von dieser Problemstellung ausgehend soll die eingangs beschriebene Matrize so verbessert werden, dass die von der Hülse übertragbaren Kräfte erhöht werden können und dadurch entweder kostengünstiges Material eingesetzt oder höhere Niederhalterkräfte aufgenommen werden können.Starting from this problem, the matrix described above should be improved so that the transferable from the sleeve forces can be increased and thereby either cost-effective material used or higher hold-down forces can be absorbed.

Zur Problemlösung zeichnet sich eine gattungsgemäße Matrize dadurch aus, dass die Wandung der Hülse an dem den Absatz umgebenden Ende in dem Bereich zwischen den Schlitzen nach radial innen verbreiterte Bereiche aufweist, die sich jeweils zwischen zwei benachbarte Schiebestücke erstrecken und in radialer Richtung den Absatz zumindest teilweise überragen.To solve the problem, a generic die is characterized in that the wall of the sleeve at the end surrounding the paragraph in the area between the slots radially inwardly widened areas each extending between two adjacent sliding pieces and in the radial direction the paragraph at least partially overtop.

Durch diese Ausgestaltung liegt der Niederhalter beim Fügen auf einer großen Fläche an, wodurch die Hülse höhere Kräfte aufnehmen kann und ihre Belastung durch die Kraft des Niederhalters reduziert wird.By this configuration, the hold-down is applied to a large area during joining, whereby the sleeve can absorb higher forces and their load is reduced by the force of the hold-down.

Vorzugsweise sind die Schiebestücke im Querschnitt L-förmig mit einem Fuß und einem Kopf ausgebildet, und die Schlitze weisen in Axialrichtung eine obere und eine untere Wand auf. Durch diese Ausgestaltung wird die Führung der Schiebestücke in der Hülse sichergestellt.Preferably, the sliding pieces are L-shaped in cross section with a foot and a head, and the slots have an upper and a lower wall in the axial direction. This configuration ensures the guidance of the sliding pieces in the sleeve.

Wenn die Füße der Schiebestücke in radialer Richtung eine Nut aufweisen und die Wandung der Hülse in Höhe der Schlitze mit einer Umfangsnut versehen ist, kann in die Nuten ein alle Schiebestücke umgreifendes Federelement eingelegt werden, dass die Rückstellkräfte auf die Schiebestücke bewirkt. Das Federelement kann ein Stahlfederring oder eine Polymerfeder sein.If the feet of the sliding pieces have a groove in the radial direction and the wall of the sleeve is provided with a circumferential groove at the level of the slots, a spring element encompassing all the sliding pieces can be inserted into the grooves, which effects the restoring forces on the sliding pieces. The spring element may be a steel spring ring or a polymer spring.

Vorzugsweise beginnen die verbreiterten Bereiche der Hülse in Höhe der unteren Wände der Schlitze. Dadurch werden die Bereiche, die der Kraftübertragung dienen können, optimiert.Preferably, the widened portions of the sleeve begin at the level of the lower walls of the slots. As a result, the areas that can serve the power transmission, optimized.

Um die Führung der Schiebestücke weiter zu verbessern, kann zumindest eine der Wände der Schlitze ein Führungselement und das zugehörige Schiebestück eine hierzu kongruente Gegenführung aufweisen. Diese Führung/Gegenführung kann durch Vorsprünge und Nuten realisiert werden.In order to further improve the guidance of the sliding pieces, at least one of the walls of the slots can have a guide element and the associated sliding piece a counter-guide congruent thereto. This guide / Gegenführung can be realized by projections and grooves.

Wenn die Wandung der Hülse in axialer Richtung die Schiebestücke überragt sind über den Schlitzen radial durchgängige axiale Ausfräsungen vorgesehen. Durch diese Ausgestaltung ist sichergestellt, dass die Kraft des Niederhalters auch dann in die verbreiterten Bereiche der Wandung eingeleitet wird, wenn die Matrize bzw. die Hülse nicht absolut parallel zu den Fügeteilen angeordnet ist, sondern leicht abgewinkelt hierzu steht, sodass keine vollflächige Anlage an der Unterseite des Werkstücks zustande kommt.If the wall of the sleeve projects beyond the sliding pieces in the axial direction, radially continuous axial cut-outs are provided over the slots. By this configuration, it is ensured that the force of the blank holder is also introduced into the widened areas of the wall when the die or the sleeve is not arranged absolutely parallel to the parts to be joined, but slightly angled thereto, so that no full surface contact with the Bottom of the workpiece comes about.

Dadurch dass die von der Hülse aufnehmbare Kraft vergrößert wird, können für den Amboss und die Hülse unterschiedliche Materialien gewählt werden, wobei der Amboss aus einem härteren Material besteht als die Hülse. Der Amboss kann fixiert oder in axialer Richtung angetrieben sein.By increasing the force that can be absorbed by the sleeve, different materials can be chosen for the anvil and the sleeve, wherein the anvil is made of a harder material than the sleeve. The anvil can be fixed or driven in the axial direction.

Mit Hilfe einer Zeichnung sollen Ausführungsbeispiele der Erfindung nachfolgend näher beschrieben werden. Es zeigen:

Figur 1 -
die Anordnung einer Fügevorrichtung;
Figur 2 -
ein erstes Ausführungsbeispiel einer Matrize in perspektivischer Darstellung;
Figur 3 -
die Ansicht der Matrize nach Figur 2;
Figur 4 -
den Schnitt entlang der Linie IV-IV nach Figur 3;
Figur 5 -
die Ansicht gemäß Sichtpfeil V nach Figur 3;
Figur 6 -
den Schnitt entlang der Linie VI-VI nach Figur 5;
Figur 7 -
die Ansicht eines zweiten Ausführungsbeispieles einer Matrize;
Figur 8 -
den Schnitt entlang der Linie VIII-VIII nach Figur 7.
With the help of a drawing, embodiments of the invention will be described in more detail below. Show it:
FIG. 1 -
the arrangement of a joining device;
FIG. 2 -
a first embodiment of a die in perspective view;
FIG. 3 -
the view of the matrix after FIG. 2 ;
FIG. 4 -
the section along the line IV-IV after FIG. 3 ;
FIG. 5 -
the view according to arrow V after FIG. 3 ;
FIG. 6 -
the section along the line VI-VI after FIG. 5 ;
FIG. 7 -
the view of a second embodiment of a die;
FIG. 8 -
the section along the line VIII-VIII FIG. 7 ,

Das Fügewerkzeug besteht im Wesentlichen aus der Matrize 1 und dem darüber angeordneten Werkzeugträger 2 und dient dazu, die beiden Bleche 3, 4 durch Umformung miteinander zu verbinden. Im Werkzeugträger 2 ist (hier nicht dargestellt) ein Stempel angeordnet, der von dem Niederhalter 5 koaxial umgeben wird. Der Niederhalter 5 stützt sich beim Fügen auf dem oberen Blech 3 ab, während der Stempel die Verformung der beiden Bleche 3, 4 bewirkt und die Bleche 3, 4punktförmig miteinander verbinden.The joining tool consists essentially of the die 1 and the tool carrier 2 arranged above it and serves to connect the two sheets 3, 4 by forming each other. In the tool holder 2 (not shown here), a stamp is arranged, which is surrounded by the hold-5 coaxially. The hold-5 is based on the joining on the upper plate 3, while the punch causes the deformation of the two sheets 3, 4 and the sheets 3, 4 point-shaped interconnect.

Die Matrize 1 besteht aus dem Grundkörper 10, an dem ein oberer umlaufender Absatz 11 ausgebildet ist, an den sich koaxial ein Amboss 12 anschließt, und der Hülse 20 mit den daran angeordneten Schiebestücken 30. Der Grundkörper 10 kann in der Hülse 20 in axialer Richtung A verschiebbar angetrieben oder fix montiert sein. Wenn der Amboss 12 in axialer Richtung A verschiebbar angeordnet ist, wird er von einer zusätzlichen Buchse 50 umgeben (Figur 8). Das Nachfolgende gilt für beide Ausführungsformen. Die Schiebestücke 30 sind im Querschnitt L-förmig ausgebildet mit einem Fuß 31 und einem Kopf 32. In der Wandung 21 der Hülse 20 sind entsprechend der Anzahl der Schiebestücke 30 in radialer Richtung R durchgängige Schlitze 22 vorgesehen, in der die Füße 31 der Schiebestücke 30 gleitend aufgenommen sind. In Höhe der Schlitze 22 ist die Wandung 21 der Hülse 20 mit einer äußeren Umfangsnut 23 versehen, in die die Schlitze 22 münden. Die Füße 31 der Schiebestücke 30 weisen eine Nut 33 auf, in die ein Federelement 40, beispielsweise eine Stahlringfeder oder ein Polymerelement eingelegt ist, das die Schiebestücke 30 nach radial innen zwingt, sodass sich diese im unbelasteten Zustand an den Amboss 12 anlehnen und auf dem Absatz 11 aufliegen.The die 1 consists of the base body 10, on which an upper circumferential shoulder 11 is formed, to which an anvil coaxial connects 12, and the sleeve 20 with the sliding pieces 30 arranged thereon. The main body 10 can in the sleeve 20 in the axial direction A slidably driven or fixed mounted. When the anvil 12 is slidably disposed in the axial direction A, it is from a surround additional socket 50 ( FIG. 8 ). The following applies to both embodiments. The sliding pieces 30 are formed in cross-section L-shaped with a foot 31 and a head 32. In the wall 21 of the sleeve 20 according to the number of sliding pieces 30 in the radial direction R continuous slots 22 are provided, in which the feet 31 of the sliding pieces 30th are recorded in a sliding manner. At the level of the slots 22, the wall 21 of the sleeve 20 is provided with an outer circumferential groove 23 into which the slots 22 open. The feet 31 of the sliding pieces 30 have a groove 33, in which a spring element 40, for example, a steel spring or a polymer element is inserted, which forces the sliding pieces 30 radially inward, so that they lean against the anvil 12 in the unloaded state and on the Paragraph 11.

Bei der Ausführungsform mit feststehendem Amboss 12 übernimmt die Aufgabe des Absatzes 11 die Buchse 50 bzw. deren oberes Ende 51, auf der die Schiebestücke 30 gleiten.In the embodiment with a fixed anvil 12, the task of the paragraph 11 takes over the socket 50 and the upper end 51 on which slide the sliding pieces 30.

Im Bereich ihres oberen Endes 20.1 ist die Wandung 21 der Hülse 20 zwischen den Schlitzen 22 nach radial innen verbreitert, sodass sich verbreiterte Bereiche 23 ergeben, die sich jeweils zwischen zwei benachbarte Schiebestücke 30 erstrecken und in radialer Richtung R den Absatz 11 des Grundkörpers 10 bzw. den durch das obere Ende der Buchse 50 ausgebildeten Absatz 51 überragen. Der Niederhalter 5, der auf die Bleche 3, 4 einwirkt, stützt sich in diesen verbreiterten Bereichen 23 der Hülse 20 der Matrize 1 ab. Wenn der Stempel weiter in axialer Richtung die Bleche 3, 4 verformt, stützt er sich auf dem Amboss 12 ab und das aus den Blechen 3, 4 verdrängte Material zwingt den Grundkörper 10 in axialer Richtung A nach unten und die Schiebestücke 30 in radialer Richtung R nach außen gegen die Kraft des Federelementes 40. Dabei gleiten die Federelemente 30 in den Schlitzen 22 und stützen sich auf dem Absatz 11 des Grundkörpers 10 ab.In the region of its upper end 20.1, the wall 21 of the sleeve 20 between the slots 22 is widened radially inward, so that widened areas 23 result, each extending between two adjacent sliding pieces 30 and in the radial direction R the paragraph 11 of the body 10 and projecting beyond the upper end of the sleeve 50 formed paragraph 51. The hold-down device 5, which acts on the sheets 3, 4, is supported in these widened regions 23 of the sleeve 20 of the die 1. If the punch further deforms the sheets 3, 4 in the axial direction, it is supported on the anvil 12 and the material displaced from the sheets 3, 4 forces the base 10 in the axial direction A downwards and the sliding pieces 30 in the radial direction R. outward against the force of the spring element 40. In this case, the spring elements 30 slide in the slots 22 and are based on the heel 11 of the body 10 from.

In der oberen Wand 22.1 und der unteren Wand 22.2 der Schlitze 22 sind Nuten 22.3, 22.4 vorgesehen, in denen an den Füßen 31 der Schiebestücke 30 vorgesehene Vorsprünge 33.1, 33.2 gleitend geführt sind.Grooves 22.3, 22.4 are provided in the upper wall 22.1 and the lower wall 22.2 of the slots 22, in which projections 33.1, 33.2 provided on the feet 31 of the sliding pieces 30 are slidably guided.

Über den Schlitzen 22 ist die Hülse 20 mit axialen Ausfräsungen 24 versehen, die durchgängig ausgeführt sind, wodurch die verbreiterten Bereiche 33 nach oben hervorstehen. Damit wird sichergestellt, dass die Matrize 1 bzw. die Hülse 20 immer mit den verbreiterten Bereichen 23 an der Unterseite des Bleches 4 anliegt, auch wenn die Matrize 1 nicht exakt planparallel zu dem Blech 4 ausgerichtet ist. Eine Überlastung der Wandung 21 im Bereich der Schlitze 22 wird dadurch sicher vermieden, weil keine Kraft durch den Niederhalter 5 auf sie einwirken kann.Over the slots 22, the sleeve 20 is provided with axial cutouts 24, which are executed continuously, whereby the widened portions 33 protrude upwards. This ensures that the die 1 or the sleeve 20 always rests with the widened regions 23 on the underside of the sheet 4, even if the die 1 is not aligned exactly plane-parallel to the sheet 4. An overload of the wall 21 in the region of the slots 22 is thereby reliably avoided because no force can act on it by the hold-down 5.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Matrizedie
22
Stempelwerkzeugstamp tool
33
Blechsheet
44
Blechsheet
55
Niederhalterdown device
1010
Grundkörperbody
1111
Absatzparagraph
1212
Ambossanvil
2020
Hülseshell
20.120.1
EndeThe End
2121
Wandungwall
2222
Schlitzslot
22.122.1
obere Wandupper wall
22.222.2
untere Wandbottom wall
22.322.3
Nutgroove
22.422.4
Nutgroove
2323
verbreiterter Bereichwidened area
2424
Umfangsnutcircumferential groove
3030
Schiebestücksliding piece
3131
Fußfoot
3232
Kopfhead
3333
Nutgroove
33.133.1
Vorsprunghead Start
33.233.2
Vorsprunghead Start
4040
Federelement/Ringfeder/PolymerelementBungee / ring spring / polymer element
5050
BuchseRifle
5151
oberes Endetop end
AA
axiale Richtungaxial direction
RR
radiale Richtungradial direction

Claims (11)

Matrize für ein Fügewerkzeug, insbesondere zum Durchsetzfügen, mit einem Amboss (12) und einem den Amboss (12) koaxial umgebenden Absatz (11, 51), der an einem Grundkörper (10) des Ambosses (12) oder durch ein Ende (51) einer Buchse (50) ausgebildet ist, und einer den Grundkörper (10) bzw. die Buchse (50) umgebenden Hülse (20), die über ihren Umfang durch ihre Wandung (21) hindurchgehende radiale Schlitze (22) aufweist, in denen jeweils ein Schiebestück (30) in radialer Richtung (R) beweglich geführt ist, das sich in axialer Richtung (A) zumindest auf dem Absatz (11, 51) abstützt, dadurch gekennzeichnet, dass die Wandung (21) der Hülse (20) an dem den Absatz (11, 51) umgebenden Ende (20.1) in dem Bereich zwischen den Schlitzen (22) nach radial innen verbreiterte Bereiche (23) aufweist, die sich jeweils zwischen zwei benachbarte Schiebestücke (30) erstrecken und in radialer Richtung (R) den Absatz (11) zumindest teilweise überragen.Die for a joining tool, in particular for clinching, with an anvil (12) and an anvil (12) coaxially surrounding paragraph (11, 51) on a base body (10) of the anvil (12) or through an end (51) a sleeve (50) is formed, and a the base body (10) and the sleeve (50) surrounding sleeve (20) having over its circumference by its wall (21) passing through radial slots (22), in each of which Sliding piece (30) in the radial direction (R) is movably guided, which in the axial direction (A) at least on the shoulder (11, 51) is supported, characterized in that the wall (21) of the sleeve (20) on the Paragraph (11, 51) surrounding end (20.1) in the area between the slots (22) radially inwardly widened areas (23), each extending between two adjacent sliding pieces (30) and in the radial direction (R) the paragraph (11) at least partially surpass. Matrize nach Anspruch 1, dadurch gekennzeichnet, dass die Schiebestücke (30) im Querschnitt L-förmig mit einem Fuß (31) und einem Kopf (33) ausgebildet sind, und die Schlitze (32) in Axialrichtung (A) eine obere (22.1) und eine untere (22.2) Wand aufweisen.Die according to claim 1, characterized in that the sliding pieces (30) are formed in cross-section L-shaped with a foot (31) and a head (33), and the slots (32) in the axial direction (A) an upper (22.1) and a lower (22.2) wall. Matrize nach Anspruch 2, dadurch gekennzeichnet, dass die Füße (31) der Schiebestücke (30) in radialer Richtung (R) eine Nut (32) aufweisen und die Wandung (21) der Hülse (20) in Höhe der Schlitze (22) eine Umfangsnut (23) aufweist und in die Nuten (32) ein alle Schiebestücke (30) umgreifendes Federelement (40) eingelegt ist.Die according to claim 2, characterized in that the feet (31) of the sliding pieces (30) in the radial direction (R) have a groove (32) and the wall (21) of the sleeve (20) at the level of the slots (22) Circumferential groove (23) and in the grooves (32) a all sliding pieces (30) encompassing spring element (40) is inserted. Matrize nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass die verbreiterten Bereiche (23) in Höhe der unteren Wände (22.2) der Schlitze (22) beginnen.Die according to claim 2 or 3, characterized in that the widened areas (23) begin at the level of the lower walls (22.2) of the slots (22). Matrize nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die Schiebestücke (30) in den Schlitzen (22) geführt sind.Die according to one of the preceding claims, characterized in that the sliding pieces (30) are guided in the slots (22). Matrize nach Anspruch 5, dadurch gekennzeichnet, dass zumindest eine der Wände (22.1, 22.2) der Schlitze (22) ein Führungselement (22.3, 22.4) und das zugehörige Schiebestück (30) eine hierzu kongruente Gegenführung (31.1, 33.1) aufweist.A die according to claim 5, characterized in that at least one of the walls (22.1, 22.2) of the slots (22) has a guide element (22.3, 22.4) and the associated sliding piece (30) has a counter guide (31.1, 33.1) which is congruent thereto. Matrize nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die Wandung (21) der Hülse (20) in axialer Richtung (A) mit den Schiebestücken (30) abschließt oder diese überragt und im Bereich oberhalb der Schlitze (22) durchgängige axiale Ausfräsungen (24) aufweist.Die according to one of the preceding claims, characterized in that the wall (21) of the sleeve (20) in the axial direction (A) with the sliding pieces (30) closes or projects beyond this and in the region above the slots (22) continuous axial cutouts ( 24). Matrize nach einem der Ansprüche 3 bis 7, dadurch gekennzeichnet, dass das Federelement (40) eine Stahlringfeder oder eine Polymerfeder ist.Die according to one of claims 3 to 7, characterized in that the spring element (40) is a steel ring spring or a polymer spring. Verfahren nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass der Amboss (12) aus einem härteren Material als die Hülse (20) besteht.Method according to one of the preceding claims, characterized in that the anvil (12) consists of a harder material than the sleeve (20). Matrize nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass mindestens drei, insbesondere genau vier, Schiebestücke (30) vorgesehen sind.Die according to one of the preceding claims, characterized in that at least three, in particular exactly four, sliding pieces (30) are provided. Matrize nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass der Amboss (12) in vertikaler Richtung (V) verschiebbar angetrieben ist.Die according to one of the preceding claims, characterized in that the anvil (12) is displaceably driven in the vertical direction (V).
EP19152135.0A 2018-02-14 2019-01-16 Matrix for a joining tool Active EP3527299B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018103309.5A DE102018103309A1 (en) 2018-02-14 2018-02-14 Die for a joining tool

Publications (2)

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EP3527299A1 true EP3527299A1 (en) 2019-08-21
EP3527299B1 EP3527299B1 (en) 2020-10-07

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US (1) US11090707B2 (en)
EP (1) EP3527299B1 (en)
CN (1) CN110153295B (en)
DE (1) DE102018103309A1 (en)
HU (1) HUE053019T2 (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10116736A1 (en) 2000-04-05 2002-04-18 Tox Pressotechnik Gmbh Method to produce press joint connection between component and plate; involves pressing flat part of plate into die opening, with different radial resistances to material flow around die wall
EP1468758B1 (en) 2003-04-17 2005-09-28 ECKOLD GmbH & Co. KG Die for a tool set for mechanical joining
DE102004033228A1 (en) 2004-07-08 2006-02-02 Manfred Kern Counter die, cooperating with stamp for press-joining, has abutment surfaces of lamella surfaces which move below surfaces of fixed portions when lamella portions are displaced outwards
US20060168792A1 (en) * 2005-02-02 2006-08-03 Larry Reatherford Apparatus and method for forming a joint between adjacent members
US20060196034A1 (en) * 2005-03-04 2006-09-07 Sawdon Edwin G Sheet fastening apparatus and method
EP2138249A1 (en) * 2008-06-27 2009-12-30 Attexor Clinch Systems S.A. Tool for making joints of clinch type
US20100212131A1 (en) * 2009-02-23 2010-08-26 Btm Corporation Clinching tool

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4910853A (en) * 1980-09-08 1990-03-27 Btm Corporation Apparatus for joining sheet material
SE9904167D0 (en) 1999-11-16 1999-11-16 Attexor Equip Atool for joining two or several overlaying sheet formed members
DE102015007553A1 (en) * 2015-06-16 2016-12-22 Eckold Gmbh & Co Kg Die for a joining tool, in particular for clinching

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10116736A1 (en) 2000-04-05 2002-04-18 Tox Pressotechnik Gmbh Method to produce press joint connection between component and plate; involves pressing flat part of plate into die opening, with different radial resistances to material flow around die wall
EP1468758B1 (en) 2003-04-17 2005-09-28 ECKOLD GmbH & Co. KG Die for a tool set for mechanical joining
DE102004033228A1 (en) 2004-07-08 2006-02-02 Manfred Kern Counter die, cooperating with stamp for press-joining, has abutment surfaces of lamella surfaces which move below surfaces of fixed portions when lamella portions are displaced outwards
US20060168792A1 (en) * 2005-02-02 2006-08-03 Larry Reatherford Apparatus and method for forming a joint between adjacent members
US20060196034A1 (en) * 2005-03-04 2006-09-07 Sawdon Edwin G Sheet fastening apparatus and method
EP2138249A1 (en) * 2008-06-27 2009-12-30 Attexor Clinch Systems S.A. Tool for making joints of clinch type
US20100212131A1 (en) * 2009-02-23 2010-08-26 Btm Corporation Clinching tool

Also Published As

Publication number Publication date
CN110153295A (en) 2019-08-23
US20190247908A1 (en) 2019-08-15
CN110153295B (en) 2022-02-08
US11090707B2 (en) 2021-08-17
HUE053019T2 (en) 2021-06-28
DE102018103309A1 (en) 2019-08-14
EP3527299B1 (en) 2020-10-07

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