EP0330061B1 - Dispositif d'agrafage de pièces en tôle - Google Patents

Dispositif d'agrafage de pièces en tôle Download PDF

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Publication number
EP0330061B1
EP0330061B1 EP89102558A EP89102558A EP0330061B1 EP 0330061 B1 EP0330061 B1 EP 0330061B1 EP 89102558 A EP89102558 A EP 89102558A EP 89102558 A EP89102558 A EP 89102558A EP 0330061 B1 EP0330061 B1 EP 0330061B1
Authority
EP
European Patent Office
Prior art keywords
die
anvil
edge members
outline
plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP89102558A
Other languages
German (de)
English (en)
Other versions
EP0330061A2 (fr
EP0330061A3 (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.)
ECKOLD, GERD-JUERGEN
Maass Hans
Eckold GmbH and Co KG
Original Assignee
Walter Eckold & Co KG Vorrichtungs- und Geraetebau GmbH
Eckold Gerd-Juergen
Maass Hans
Eckold GmbH and Co KG
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 Walter Eckold & Co KG Vorrichtungs- und Geraetebau GmbH, Eckold Gerd-Juergen, Maass Hans, Eckold GmbH and Co KG filed Critical Walter Eckold & Co KG Vorrichtungs- und Geraetebau GmbH
Priority to EP92101047A priority Critical patent/EP0513473B1/fr
Priority to AT89102558T priority patent/ATE79574T1/de
Publication of EP0330061A2 publication Critical patent/EP0330061A2/fr
Publication of EP0330061A3 publication Critical patent/EP0330061A3/de
Application granted granted Critical
Publication of EP0330061B1 publication Critical patent/EP0330061B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/03—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal otherwise than by folding
    • B21D39/031—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
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49833—Punching, piercing or reaming part by surface of second 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
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53709—Overedge assembling means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53709—Overedge assembling means
    • Y10T29/5377—Riveter
    • 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
    • Y10T29/53996—Means to assemble or disassemble by deforming

Definitions

  • the joining tools are "open" in the direction parallel to the cuts.
  • clinching tools have also become known in which the die has a closed contour and the punch has a contour which is smaller than this, in such a way that none of the metal sheets to be joined is cut and a fluid-tight joining point is thus created.
  • Such a device is disclosed for example in DE-OS 31 06 313, Fig. 7/8.
  • the die contour is limited by its cutting parts, which are articulated on a base.
  • these tools require a relatively large amount of space, which is often not available in practice. Similar devices are disclosed in GB-A-2 189 175.
  • the object of the invention is to provide a joining device of the type specified in the preamble of claim 1, in which an easily producible, less protruding die is made possible and the non-rotatable joining points in the direction parallel to the surfaces of the workpieces have essentially the same tensile strength in all directions despite oval shape.
  • the latter existence is important for the sheet metal designer, because he then does not have to adjust the clamping direction of the joining tools to the load of the later workpiece.
  • the stamp contour in the direction of the deflection of the cutting parts has a smaller dimensional difference with respect to the die contour than in the direction perpendicular to it.
  • the deformation of the material when passing through is accordingly anisotropic, but also in the subsequent spreading step, so that the two anisotropies essentially balance out and the joining point has an essentially constant tensile strength in all directions parallel to the sheet metal surfaces.
  • the cutting parts can be produced as simple stamped parts.
  • the cutting contour is then delimited by its end faces on the one hand, by the edge of a recess made in the anvil on the other hand, which can also be produced with little effort.
  • the limitation in the anvil causes the material to spread in a targeted manner in the direction of the resilient cutting parts. This reduces the depth of penetration of the punch and the pressure required to create a joining point.
  • the contour of the stamp and the die can be designed in such a way that the joining point on the die side results in a clearly offset oval, but on the die side at least approximately as a circular projection.
  • the cutting parts can be provided with suitable coatings to increase the service life and to prevent welding.
  • the tool set shown broken away in FIGS. 1 and 2, consisting of punch 10 and die 12, is clamped in any pressing device (not shown) and moved in the direction of arrows 14 in order to join two or more sheets 16 placed between punch and die.
  • the die consists of a central anvil 18 with a recess 20, for another reason the working surface 22 is located, and two cutting parts 24, which here have the form of strong leaf springs.
  • the sheet is pushed through by the punch into the die recess, delimited by the cutting parts 24 and the anvil sections 26 on both sides of the recess 20, and when the throughput is stopped by the working surface 22 of the anvil, the material passed through flows laterally , because the cutting parts can be deflected elastically.
  • the stamp contour is oval, as can be seen in FIG. 3, and the die recess is also approximately oval (cf. FIG. 8).
  • the stamp contour is set back in relation to the die contour in such a way that neither of the two sheets is cut through when joining, and unequal in the two planes defined by the sectional planes of FIGS. 1 and 2:
  • the dimension "A” is significantly larger than the dimension "B”, and this also affects the cross-sectional shape of the finished joint connection, as shown in FIGS. 5 and 6.
  • significantly thicker material thicknesses of the penetration remain than in the extruded area of the level 6-6, the dimensions A and B and the working angle "C" of the stamp being matched to one another in such a way that the tensile strength of the joint connection is parallel in the direction to the sheets is at least approximately the same.
  • the joining point is aesthetically satisfactory when viewed from both sheet metal sides.
  • FIGS. 1 and 2 The representation according to FIGS. 1 and 2 is largely schematic in order to explain the essentials for the invention.
  • a die designed in this way would have two major disadvantages: on the one hand, a compromise in terms of strength and elasticity must be found for the cutting parts; on the other hand, it cannot be ruled out that scraped-off chips from the workpieces will get into the gap between the anvil and cutting parts and spread the latter continuously , which of course affects the joining work.
  • the cutting parts are each deflectably supported on a cutting edge 30 of a base 32 and are held in contact with the anvil 18 by leaf springs 34.
  • the cutting parts can therefore be made of very hard material, while the leaf springs ensure almost unimpeded springing open during the material spreading phase.
  • the bearings of the cutting parts are designed with an arc-shaped support facing the punch, so that any dirt falls down from the storage area.
  • the anvil is drawn in below its working area, so that there are collecting spaces 36 for chips or other dirt; these collecting spaces are located below the bearing 30.
  • Anvil, base and leaf springs can be connected to one another by means of a hollow rivet or the like, only the axis 38 of such a connecting element being indicated in FIG. 7.
  • the chip formation can be significantly reduced or even completely prevented if the edges 46 of the anvil 'and the edges 48 of the cutting parts are not sharp-edged, but are rounded off.
  • FIG. 9 shows a form of the stamp in which the depth of penetration of the stamp is limited by a collar 50 which sits on the top of the stamp-side sheet.
  • This design is recommended for thin, soft sheets to prevent the displaced material from rising.
  • the press used then does not need to have a stroke limitation, but only a force limitation, which is the case with e.g. hydraulic drive is easier.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Punching Or Piercing (AREA)
  • Laminated Bodies (AREA)
  • Supply And Installment Of Electrical Components (AREA)
  • Connection Of Plates (AREA)
  • Replacement Of Web Rolls (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Springs (AREA)
  • Gasket Seals (AREA)

Claims (11)

1. Dispositif pour la jonction avec pénétration de pièces de tôle ayant un poinçon (10) et une matrice (12), qui comprend une enclume stationnaire (18) et deux parties taillantes (24) qui peuvent être écartées de manière élastique dans une direction prédéterminée, le côté de la matrice (17) tourné vers le poinçon (10) limitant un contour fermé de matrice de la zone de pénétration, tandis que le contour de poinçon est suffisamment réduit par rapport au contour de matrice pour qu'aucune des pièces à traiter ne soit sectionnée lors de la jonction, caractérisé en ce que le contour de poinçon présente, dans la direction de la déviation des parties taillantes (24), une plus petite différence de dimensions par rapport au contour de matrice que dans la direction perpendiculaire à celle-ci de sorte que la résistance à la traction de la jonction est sensiblement isotrope parallèlement aux surfaces de pièce à traiter.
2. Dispositif selon la revendication 1, caractérisé en ce que l'enclume (18) et les deux parties taillantes (24) présentent des surfaces planes tournées l'une vers l'autre et le contour de matrice est limité par les deux taillants des parties taillantes ainsi que par un évidement (20) ménagé dans l'enclume.
3. Dispositif selon la revendication 1 ou 2, caractérisé par un contour de poinçon et un contour de matrice ovales, qui sont adaptés aux épaisseurs de tôle d'une manière telle que le point de jonction sur le côté de la matrice est sensiblement circulaire.
4. Dispositif selon l'une des revendications 1 à 3, caractérisé en ce que les parties taillantes (24) s'appuient de manière articulée à un socle (32) et sont précontraintes contre l'enclume (18) par des ressorts à lames (34).
5. Dispositif selon la revendication 4, caractérisé par une liaison (40, 42) à blocage géométrique entre les ressorts à lames (34) et les parties taillantes (24).
6. Dispositif selon la revendication 4 ou 5, caractérisé en ce que les parties taillantes (24) s'appuient sur le socle (32) au moyen de supports de couteau ouverts (30) où le couteau est du côté du socle.
7. Dispositif selon la revendication 6, caractérisé en ce qu'un espace à copeaux (36), qui se poursuit dans l'interstice entre l'enclume et les parties taillantes est évidé entre l'enclume (18) et le socle (32).
8. Dispositif selon l'une des revendications 1 à 7, caractérisé en ce que les taillants des parties taillantes (24) sont arrondis.
9. Dispositif selon les revendications 2 et 8, caractérisé en ce que l'arête (46), tournée vers le poinçon, de l'évidement d'enclume est arrondie.
10. Dispositif selon la revendication 2, caractérisé en ce que les parties taillantes présentent un revêtement réduisant l'usure par frottement.
11. Dispositif selon l'une des revendications 1 à 10, caractérisé en ce que le poinçon présente un épaulement (50) limitant sa profondeur de pénétration.
EP89102558A 1988-02-24 1989-02-15 Dispositif d'agrafage de pièces en tôle Expired - Lifetime EP0330061B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP92101047A EP0513473B1 (fr) 1988-02-24 1989-02-15 Dispositif d'agrafage de pièce en tôle
AT89102558T ATE79574T1 (de) 1988-02-24 1989-02-15 Vorrichtung zum durchsetzfuegen von blechwerkstuecken.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3805688A DE3805688A1 (de) 1988-02-24 1988-02-24 Vorrichtung zum durchsetzfuegen von blechwerkstuecken
DE3805688 1988-02-24

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP92101047.6 Division-Into 1992-01-23

Publications (3)

Publication Number Publication Date
EP0330061A2 EP0330061A2 (fr) 1989-08-30
EP0330061A3 EP0330061A3 (en) 1990-09-05
EP0330061B1 true EP0330061B1 (fr) 1992-08-19

Family

ID=6348008

Family Applications (2)

Application Number Title Priority Date Filing Date
EP92101047A Expired - Lifetime EP0513473B1 (fr) 1988-02-24 1989-02-15 Dispositif d'agrafage de pièce en tôle
EP89102558A Expired - Lifetime EP0330061B1 (fr) 1988-02-24 1989-02-15 Dispositif d'agrafage de pièces en tôle

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP92101047A Expired - Lifetime EP0513473B1 (fr) 1988-02-24 1989-02-15 Dispositif d'agrafage de pièce en tôle

Country Status (7)

Country Link
US (1) US5046228A (fr)
EP (2) EP0513473B1 (fr)
JP (1) JP2517757B2 (fr)
AT (2) ATE110310T1 (fr)
DE (3) DE3805688A1 (fr)
ES (2) ES2035385T3 (fr)
RU (1) RU1829979C (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130042450A1 (en) * 2011-08-15 2013-02-21 Hans R. Bergkvist Apparatus for joining two or more overlapping material members and method for manufacturing of the apparatus

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5315743A (en) * 1990-05-18 1994-05-31 Tech-Line Engineering Co. Apparatus for forming a clinch joint
ES2037589B1 (es) * 1991-06-14 1994-01-16 Batz S Coop Ltda Procedimiento de engatillado por remachado, engatillado por dicho procedimiento y util para su realizacion.
DE9114122U1 (de) * 1991-11-13 1993-04-01 Eckold GmbH & Co KG, 3424 St. Andreasberg Vorrichtung zum Fügen von Blechteilen
US5884386A (en) * 1991-11-27 1999-03-23 Henrob Ltd. Panel clinching methods and apparatus
US5230136A (en) * 1992-05-04 1993-07-27 Savair Inc. Punch and die set for sheet metal clinching
DE4428546A1 (de) * 1994-08-12 1996-02-15 Gerhard Pirchl Preßfügewerkzeug
DE4431274C2 (de) * 1994-09-02 1998-08-06 Giersiepen Gira Gmbh Verfahren zum Herstellen eines Elektro-Installationsgerätes sowie Elektro-Installationsgerät
DE19700465B4 (de) * 1997-01-09 2004-02-12 Schuler Pressen Gmbh & Co. Kg Verfahren und Vorrichtung zum Herstellen von Lenkern, Hebeln, Streben oder Zugstangen
DE19714129A1 (de) * 1997-04-05 1998-10-15 Eckold Vorrichtung Fügeverfahren und -vorrichtung
DE19929377B4 (de) * 1999-06-25 2011-12-22 Tox Pressotechnik Gmbh & Co. Kg Verfahren und Vorrichtung zum Verbinden aufeinanderliegender Platten
DE29912797U1 (de) 1999-07-22 1999-12-23 Wilhelm Pudenz GmbH, 27243 Dünsen Elektrotechnische Baueinheit
CA2405098A1 (fr) * 2000-04-05 2001-10-18 Tox Pressotechnik Gmbh Procede et outil permettant de produire des liaisons d'assemblage par pression
DE20013526U1 (de) * 2000-08-05 2000-12-07 Avdel Verbindungselemente GmbH, 30851 Langenhagen Vorrichtung zum Verbinden von Blechen durch Stanznieten oder Durchsetzfügen
US6405421B1 (en) * 2001-01-03 2002-06-18 Hon Hai Precisionind. Co., Ltd. Die assembly for riveting
JP2006019074A (ja) * 2004-06-30 2006-01-19 Auto Network Gijutsu Kenkyusho:Kk 導電路及びコネクタ
US7694399B2 (en) 2005-03-04 2010-04-13 Btm Corporation Sheet fastening apparatus and method
US7849573B2 (en) * 2006-09-08 2010-12-14 Ford Motor Company Apparatus for self-piercing rivet
US8650730B2 (en) 2009-02-23 2014-02-18 Btm Corporation Clinching tool
CN102284629A (zh) * 2011-08-26 2011-12-21 苏州托克斯冲压设备有限公司 金属板件的冲压腰形点连接模具与冲压腰形点连接方法
US10328481B2 (en) 2014-03-18 2019-06-25 Btm Company Llc Clinching punch and apparatus
DE102015107606B3 (de) * 2015-05-13 2016-05-04 Benteler Automobiltechnik Gmbh Federsattel für eine Blattfeder eines Kraftfahrzeugs

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US3995406A (en) * 1974-06-19 1976-12-07 Rosman Irwin E Rivet fastener system
US4757609A (en) * 1980-09-08 1988-07-19 Btm Corporation Apparatus for joining sheet material
US4459735A (en) * 1980-09-08 1984-07-17 Btm Corporation Joining sheet metal
GB2087284B (en) * 1980-09-08 1984-06-06 Btm Corp Apparatus for and method of joining sheet metal and sheet metal so joined
EP0077932B1 (fr) * 1981-10-28 1984-12-27 WALTER ECKOLD GmbH & Co. KG Vorrichtungs- und Gerätebau Dispositif pour assembler des tôles par une jonction similaire à une rivure
US4555100A (en) * 1982-06-07 1985-11-26 Ditto Joseph R Friction locking hand clamp
DE8408792U1 (de) * 1984-03-22 1985-07-18 Walter Eckold GmbH & Co KG Vorrichtungs- und Gerätebau, 3424 St Andreasberg Vorrichtung zum Verbinden flächig aufeinanderliegender Bleche mittels Durchdrücken und Fließverpressen
DE3679364D1 (de) * 1985-09-14 1991-06-27 Eugen Rapp Verfahren und vorrichtung zum verbinden duenner platten.
DE3532899A1 (de) * 1985-09-14 1987-03-26 Eugen Rapp Verfahren und vorrichtung zum verbinden von platten durch stanznocken

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130042450A1 (en) * 2011-08-15 2013-02-21 Hans R. Bergkvist Apparatus for joining two or more overlapping material members and method for manufacturing of the apparatus

Also Published As

Publication number Publication date
US5046228A (en) 1991-09-10
EP0330061A2 (fr) 1989-08-30
EP0330061A3 (en) 1990-09-05
EP0513473A1 (fr) 1992-11-19
DE58908245D1 (de) 1994-09-29
ES2062831T3 (es) 1994-12-16
DE3805688A1 (de) 1989-09-07
EP0513473B1 (fr) 1994-08-24
ES2035385T3 (es) 1993-04-16
DE58902059D1 (de) 1992-09-24
JP2517757B2 (ja) 1996-07-24
ATE79574T1 (de) 1992-09-15
JPH0259129A (ja) 1990-02-28
ATE110310T1 (de) 1994-09-15
RU1829979C (ru) 1993-07-23

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