EP3527299B1 - Matrize für ein fügewerkzeug - Google Patents

Matrize für ein fügewerkzeug Download PDF

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Publication number
EP3527299B1
EP3527299B1 EP19152135.0A EP19152135A EP3527299B1 EP 3527299 B1 EP3527299 B1 EP 3527299B1 EP 19152135 A EP19152135 A EP 19152135A EP 3527299 B1 EP3527299 B1 EP 3527299B1
Authority
EP
European Patent Office
Prior art keywords
slots
female die
sleeve
die according
sliding pieces
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.)
Active
Application number
EP19152135.0A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3527299A1 (de
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
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
Application filed by Eckold GmbH and Co KG, Walter Eckold GmbH and Co KG Vorrichtungs und Geraetebau filed Critical Eckold GmbH and Co KG
Publication of EP3527299A1 publication Critical patent/EP3527299A1/de
Application granted granted Critical
Publication of EP3527299B1 publication Critical patent/EP3527299B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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 shoulder is formed on a base body of the anvil or through one end of a bushing, and a sleeve surrounding the base body or the bushing, which has radial slots extending through its wall over its circumference, in each of which a sliding piece is guided movably in the radial direction, which is supported in the axial direction at least on the shoulder.
  • Such a die is, for example, from EP 1 468 758 B1 known. Through the slots in the casing of the sleeve, guide tracks are created for the sliding pieces, through which they receive an additional guide in addition to the support surface on the shoulder of the base body.
  • Such a die is built compact in terms of its height and its diameter.
  • the die interacts with a tool punch and, together with the tool punch, serves to connect two parts to be joined, for example sheet metal, to one another by forming the material. In clinching in particular, high forces act on the die.
  • the counter tool used for joining consists of a hold-down device and a punch. While the punch acts on the base body or anvil, the hold-down device is supported on the sleeve.
  • the sleeve must be made of a hard and tough material which not only has the disadvantage of correspondingly high costs, but also relatively is difficult to process, which in turn requires high-quality tools for making the slots in the wall of the sleeve, 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 shoulder, nor is a sleeve arranged in the base body.
  • the base body is made in one piece and the sliding pieces slide exclusively in the slots on support surfaces provided in the base body or in grooves provided in the anvil.
  • the EP 2 138 249 A1 , the US 2006/0196034 A1 and the US 2006/0168792 A1 disclose clinching devices with which two sheets can be connected to one another.
  • the initially described die is to be improved in such a way that the forces that can be transmitted by the sleeve can be increased and thereby either inexpensive material can be 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 shoulder in the area between the slots has radially inwardly widened areas that each extend between two adjacent sliding pieces and in the radial direction At least partially protrude from the heel.
  • the sliding pieces are preferably 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 that the sliding pieces are guided in the sleeve.
  • a spring element can be inserted into the grooves that encompasses all the sliding pieces and causes the restoring forces on the sliding pieces.
  • the spring element can be a steel spring ring or a polymer spring.
  • the widened areas of the sleeve begin at the level of the lower walls of the slots. This optimizes the areas that can be used for power transmission.
  • At least one of the walls of the slots can have a guide element and the associated sliding piece can have a counter-guide that is congruent therewith.
  • This guide / counter guide can be implemented by projections and grooves.
  • the anvil and the sleeve can be selected from different materials, the anvil being 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 is used to connect the two sheets 3, 4 to one another by forming.
  • a punch (not shown here) is arranged in the tool carrier 2 and is surrounded coaxially by the hold-down device 5. During joining, the hold-down device 5 is supported on the upper sheet 3, while the punch causes the deformation of the two sheets 3, 4 and connects the sheets 3, 4 to one another at points.
  • the die 1 consists of the base body 10, on which an upper circumferential shoulder 11 is formed, to which an anvil 12 is connected coaxially, and the sleeve 20 with the sliding pieces 30 arranged thereon.
  • the base body 10 can be in the sleeve 20 in the axial direction A slidably driven or permanently mounted.
  • the sliding pieces 30 are L-shaped in cross-section with a foot 31 and a head 32.
  • the wall 21 of the sleeve 20 there are continuous slots 22 in the radial direction R corresponding to the number of sliding pieces 30, in which the feet 31 of the sliding pieces 30 are added on a sliding basis.
  • the wall 21 of the sleeve 20 is provided with an outer circumferential groove 24 into which the slots 22 open.
  • the feet 31 of the sliding pieces 30 have a groove 33 into which a spring element 40, for example a steel ring spring or a polymer element is inserted, which forces the sliding pieces 30 radially inward so that they lean against the anvil 12 and on the in the unloaded state Paragraph 11 rest.
  • a spring element 40 for example a steel ring spring or a polymer element
  • the task of the shoulder 11 is taken over by the bush 50 or its upper end 51, on which the sliding pieces 30 slide.
  • 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 shoulder 11 of the base body 10 or project beyond the shoulder 51 formed by the upper end of the bushing 50.
  • the hold-down device 5, which acts on the metal sheets 3, 4, is supported in these widened areas 23 of the sleeve 20 of the die 1. If the punch continues to deform 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 body 10 downward in the axial direction A and the sliding pieces 30 in the radial direction R. to the outside against the force of the spring element 40.
  • the spring elements 30 slide in the slots 22 and are supported on the shoulder 11 of the base body 10.
  • the sleeve 20 is provided with axial milled recesses 24 which are continuous, whereby the widened areas 23 protrude upwards. This ensures that the die 1 or the sleeve 20 always lies against the underside of the sheet 4 with the widened areas 23, even if the die 1 is not aligned exactly plane-parallel to the sheet 4. Overloading the wall 21 in the area of the slots 22 is reliably avoided because no force can act on it through the hold-down device 5.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Insertion Pins And Rivets (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
EP19152135.0A 2018-02-14 2019-01-16 Matrize für ein fügewerkzeug Active EP3527299B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018103309.5A DE102018103309A1 (de) 2018-02-14 2018-02-14 Matrize für ein Fügewerkzeug

Publications (2)

Publication Number Publication Date
EP3527299A1 EP3527299A1 (de) 2019-08-21
EP3527299B1 true EP3527299B1 (de) 2020-10-07

Family

ID=65033534

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19152135.0A Active EP3527299B1 (de) 2018-02-14 2019-01-16 Matrize für ein fügewerkzeug

Country Status (5)

Country Link
US (1) US11090707B2 (hu)
EP (1) EP3527299B1 (hu)
CN (1) CN110153295B (hu)
DE (1) DE102018103309A1 (hu)
HU (1) HUE053019T2 (hu)

Family Cites Families (10)

* 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 (sv) 1999-11-16 1999-11-16 Attexor Equip Atool for joining two or several overlaying sheet formed members
ATE386598T1 (de) * 2000-04-05 2008-03-15 Tox Pressotechnik Gmbh Verfahren zur herstellung einer durchsetzfügeverbindung
DE10318060A1 (de) 2003-04-17 2004-11-18 Eckold Gmbh & Co Kg Matrize für einen Werkzeugsatz zum mechanischen Fügen
DE102004033228B4 (de) * 2004-07-08 2007-06-21 Manfred Kern Matrize und Vorrichtung zum Durchsetzfügen
US7698797B2 (en) * 2005-02-02 2010-04-20 Ford Global Technologies Apparatus and method for forming a joint between adjacent members
US7694399B2 (en) * 2005-03-04 2010-04-13 Btm Corporation Sheet fastening apparatus and method
EP2138249B1 (en) * 2008-06-27 2014-02-12 Attexor Clinch Systems S.A. Tool for making joints of clinch type
US8650730B2 (en) * 2009-02-23 2014-02-18 Btm Corporation Clinching tool
DE102015007553A1 (de) 2015-06-16 2016-12-22 Eckold Gmbh & Co Kg Matrize für ein Fügewerkzeug, insbesondere zum Durchsetzfügen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP3527299A1 (de) 2019-08-21
US20190247908A1 (en) 2019-08-15
CN110153295B (zh) 2022-02-08
US11090707B2 (en) 2021-08-17
CN110153295A (zh) 2019-08-23
HUE053019T2 (hu) 2021-06-28
DE102018103309A1 (de) 2019-08-14

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