EP0366987A1 - Dispositif pour joints à mi-fer - Google Patents

Dispositif pour joints à mi-fer Download PDF

Info

Publication number
EP0366987A1
EP0366987A1 EP89118946A EP89118946A EP0366987A1 EP 0366987 A1 EP0366987 A1 EP 0366987A1 EP 89118946 A EP89118946 A EP 89118946A EP 89118946 A EP89118946 A EP 89118946A EP 0366987 A1 EP0366987 A1 EP 0366987A1
Authority
EP
European Patent Office
Prior art keywords
stamp
cutting parts
anvil
die
punch
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
EP89118946A
Other languages
German (de)
English (en)
Other versions
EP0366987B1 (fr
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
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 AT89118946T priority Critical patent/ATE72152T1/de
Publication of EP0366987A1 publication Critical patent/EP0366987A1/fr
Application granted granted Critical
Publication of EP0366987B1 publication Critical patent/EP0366987B1/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
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53709—Overedge assembling means
    • Y10T29/53717—Annular work
    • Y10T29/53726—Annular work with second workpiece inside annular work one workpiece moved to shape the other
    • Y10T29/53765—Annular work with second workpiece inside annular work one workpiece moved to shape the other including near side fastener shaping tool

Definitions

  • the invention relates to a device for clinching with the features mentioned in the preamble of claim 1.
  • the term enforcement is described in DIN 8593, Part 5, Ord.No. 4.5.2.11 defined.
  • a more detailed description was published in "bands Plates Tubes” 4/1988, entitled “Technical aspects of the production pressure joining” by Liebig / Bober.
  • the one-step process the sheets are pushed through by the punch through the cutting parts of the die and then spread between the punch and the anvil, the cutting parts springing laterally.
  • the two-stage process the cutting parts remain and the anvil moves towards the punch under its own power, lifting the material that has passed through from the cutting parts.
  • the two-stage process can only be carried out with a double-acting press, so that the one-stage would be preferable.
  • the object of the invention is to provide a device of the same type, in which the mode of operation of the two-stage method is achieved with a single stroke of a single-acting press, that is to say “in one stage”.
  • the anvil is not moved onto the stamp relative to the stationary cutting parts, but the cutting parts deflect, not laterally, but in the direction of the stamp movement (which, of course, is not an additional lateral component excludes).
  • the depth of penetration of the stamp can be chosen to be so small that the spreading of the stamp-side sheet partly takes place at the level of the die-side sheet, which results in optically more beautiful joints with increased strength; wipers are only required in exceptional cases; Chips, oil or dirt cannot collect; a high fatigue strength of the die is guaranteed.
  • each cutting part has a semi-cylindrical recess 18, and the two recesses enclose the anvil 12 in the rest position.
  • a lamella 20 made of spring steel is fastened to the base at 22 and overlaps an associated cutting part with retaining tongues 24, which for this purpose on both sides of the semi-cylindrical recess has a gradation 26. In this way, the two cutting parts are captive, but are movably connected to the base and thus also to the anvil.
  • the stamp 30 has a conical shape which tapers in the direction of a likewise circular end face 32.
  • the working diameter of this end face of the stamp is significantly smaller than that of the anvil or the recesses in the cutting parts, such that the sheets 34 and 36 lying one above the other are not cut through when being pushed through (the invention can, however, also be used if the punch and die are cut through).
  • Fig. 2 shows the starting position. The sheets rest on the cutting parts, the punch is centered with respect to the anvil in the press (not shown).
  • Fig. 3 shows the situation after enforcement.
  • the stamp has deformed the material of both sheets into the cavity delimited by the semi-cylindrical recesses 18 and the end face of the anvil 12 until a collar 38 surrounding the punch sits on the sheet 34.
  • the dimensions are such that there is already a slight deformation of the material in the direction parallel to the sheets.
  • the angle at which the cover surfaces 14 run against the horizontal is chosen in this way; that the static friction between them and the Seated cutting parts in conjunction with the pretension of the spring lamellae is sufficient to prevent the cutting parts from escaping when being pushed through; it has been shown that the forces acting laterally are surprisingly low when enforced. However, as soon as the transverse forces that occur during spreading take effect, the cutting parts move laterally and, because of the downward slope, in the direction of the punch movement, since the lower sliding friction is then insufficient to hold the cutting parts.
  • Fig. 4 shows the end of the joining process.
  • the material of both sheets is reduced between the end faces of the anvil and the punch to about a third of the initial thickness, and the displaced material has flowed laterally over the edge of the anvil end face and thus forms a bead 40, the material of the punch-side sheet 34 flowing into the bead and clings there.
  • the joint produced with the tool set according to FIGS. 1 to 4 has good strength properties both in the direction parallel to the sheet metal planes and in the direction perpendicular to it. In contrast, the strength against twisting may be insufficient, so that it is advisable to place two joints next to each other;
  • Fig. 5 shows a die that enables simultaneous joining at two points in a press stroke (with a corresponding double punch, not shown).
  • the components corresponding to FIG. 1 are marked with the same reference symbols, so that a further explanation can be omitted.
  • the construction according to FIG. 1 or 5 may be too high; one can then modify the die as shown in FIG. 6: instead of downwards, the base 10 unloads laterally, where it has a fastening hole 42, and the spring lamellae 20 are riveted to this base projection at 44.
  • the exemplary embodiments described so far are based on the frictional engagement between the base and the cutting parts.
  • the coefficient of friction is, among other things, depending on the surface properties of the friction-mated parts and therefore not necessarily reproducible.
  • the cutting parts 16 are seated with projecting edges 46 on a corresponding radial shoulder 48 of the anvil. 1 to 6 is force-dependent, it is path-dependent in FIG. 7, because only when the expanding material "sheds" the cutting parts can they deflect downwards.
  • the design of the stamp and the return spring lamellae can take place as in the exemplary embodiments described first, so that these components have not been redrawn. It goes without saying that this principle of triggering can also be used in the other illustrated exemplary embodiments.
  • the cutting parts are simply prismatic, and the punch has a correspondingly elongated shape (here too, the return spring lamellae are not shown; reference is made to the other exemplary embodiments).
  • This tool set has the advantage over the other embodiments that the press does not necessarily have to act perpendicular to the anvil surface, but may have an offset of up to 30 ° on both sides in the plane parallel to the cutting edges 50 and nevertheless a useful joint is produced; This is particularly important when more complicated workpieces in a complete tool are to be provided with a large number of joints in a single press stroke.
  • Fig. 9 shows, enlarged compared to Fig. 8, a view in the direction of arrow "9" in a modified embodiment.
  • the slideway of the cutting parts and their sliding surfaces are provided with grooves parallel to the sliding direction, which, in addition to the static friction, also have a certain wedging effect and thus trigger make it more reproducible by force. This measure can also be used equally in the previously described exemplary embodiments.
  • the 10 and 11 has four cutting parts 16, each of which is assigned its own flat slideway 52.
  • the base and anvil are cylindrical.
  • the base has a screwed-in groove 54, into which a wire spring 56 is blown; a leg extends upward from it and forms an open ring which engages in corresponding grooves in the cutting parts. This ring acts as a return spring for the cutting parts.
  • Fig. 12 shows schematically and greatly enlarged compared to the previous figures, a construction in which the cutting part 16 not only rests on a radial support surface, as in Fig. 7, but wedges positively with the anvil at 60. It has been shown that the expanding material also triggers the cutting parts here, the tripping being very reproducible. It is understood that a plurality of such "claws" can be provided along the guideway 62. As in FIGS. 7 and 8, the return spring plate is also not shown here.
  • the punch 30 has a recessed groove 70, into which a bead 72 of a slotted ring 74 is injected.
  • the ring is so massive that when it is seated on the metal sheets to be joined, it spreads very little resiliently by its inner cone 76 sliding along the cone section 78 of the stamp. During the press return stroke, it then throws the workpiece off the punch. It goes without saying that one whose types of wipers can provide, such as those that are independent of the federal government 38.
  • the actual stamp has a radial flange 80 which is guided in a sleeve 82 provided with the collar 38.
  • the sleeve is screwed to a stamp carrier 84.
  • a package of disc springs 86 is clamped between this and the flange 80;
  • Disc springs are known to have a negative path-force characteristic curve, so that when a load specified by the dimensioning of the springs is reached, the stamp springs back suddenly.
  • the principle of the slotted spring washer shown in FIGS. 13 and 14 is also applicable to the die.
  • the cutting parts 16 can be combined into a single slotted ring, while the separate return spring 56 is omitted.

Landscapes

  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Forging (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Press Drives And Press Lines (AREA)
  • Sealing Devices (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • External Artificial Organs (AREA)
  • Massaging Devices (AREA)
  • Air Bags (AREA)
EP89118946A 1988-10-29 1989-10-12 Dispositif pour joints à mi-fer Expired - Lifetime EP0366987B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89118946T ATE72152T1 (de) 1988-10-29 1989-10-12 Durchsetzfuegevorrichtung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3836937A DE3836937A1 (de) 1988-10-29 1988-10-29 Durchsetzfuegevorrichtung
DE3836937 1988-10-29

Publications (2)

Publication Number Publication Date
EP0366987A1 true EP0366987A1 (fr) 1990-05-09
EP0366987B1 EP0366987B1 (fr) 1992-01-29

Family

ID=6366188

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89118946A Expired - Lifetime EP0366987B1 (fr) 1988-10-29 1989-10-12 Dispositif pour joints à mi-fer

Country Status (8)

Country Link
US (1) US4972565A (fr)
EP (1) EP0366987B1 (fr)
JP (1) JP2515894B2 (fr)
AT (1) ATE72152T1 (fr)
CA (1) CA2001636C (fr)
DE (2) DE3836937A1 (fr)
ES (1) ES2030573T3 (fr)
RU (1) RU1773238C (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19847794C1 (de) * 1998-10-16 1999-08-19 Eckold Ag Vorrichtung zum mechanischen Fügen flächig aufeinanderliegender Bleche durch Umformen
WO2002081112A2 (fr) * 2001-04-04 2002-10-17 Tox Pressotechnik Gmbh & Co. Kg Outil d'assemblage par rivetage

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5230136A (en) * 1992-05-04 1993-07-27 Savair Inc. Punch and die set for sheet metal clinching
ES2212024T3 (es) * 1996-10-09 2004-07-16 ECKOLD GMBH & CO. KG Matriz de union por embuticion.
DE29700868U1 (de) * 1997-01-21 1997-05-15 Avdel Verbindungselemente GmbH, 30851 Langenhagen Vorrichtung zum Durchsetzfügen
GB2334474B (en) * 1999-05-19 2000-01-19 Colin Maxwell Wade Ductile material clinch joiner
US6430794B1 (en) 2000-05-17 2002-08-13 Mckee James E. Female crimping die and system for crimping metal sheets
UA99607C2 (ru) * 2007-02-13 2012-09-10 Инвентио Аг Способ и инструмент для клинчинга толстых листовых деталей, а также применение инструмента
US8650730B2 (en) 2009-02-23 2014-02-18 Btm Corporation Clinching tool
DE102009003655B4 (de) * 2009-03-23 2012-01-19 Thyssenkrupp Steel Europe Ag Verfahren zum Herstellen einer Blechplatine, sowie eine Blechplatine und das Umformwerkzeug zum Herstellen eines Bleches mit einem Dickenübergang an einer Verbindungskante
SE532966C2 (sv) * 2009-04-22 2010-05-25 Hans Bergkvist Anordning för sammanfogning av två eller fler överlappande materialdelar och förfarande för tillverkning av anordningen
US10328481B2 (en) 2014-03-18 2019-06-25 Btm Company Llc Clinching punch and apparatus
DE102017116560A1 (de) * 2017-07-21 2019-01-24 Tox Pressotechnik Gmbh & Co. Kg Vorrichtung zum Fügen eines Werkstücks
US11577865B2 (en) 2019-12-06 2023-02-14 Deere & Company Integrated wrapping system for large square baler
US11446726B2 (en) * 2020-05-14 2022-09-20 BTM Company, LLC Metal fastening die assembly

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3106313A1 (de) * 1980-09-08 1982-04-22 BTM Corp., 48079 St. Clair, Mich. Einrichtung und verfahren zum verbinden von blechen
DE3713083A1 (de) * 1986-04-17 1987-10-29 Btm Corp Einrichtung zum verbinden von blechen
US4803767A (en) * 1986-08-29 1989-02-14 Lamb Robo Clinching tool
EP0215449B1 (fr) * 1985-09-14 1991-05-22 RAPP, Eugen Procédé et dispositif pour assembler des plaques minces

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1602494A1 (de) * 1967-08-05 1970-12-10 Licentia Gmbh Werkzeug,insbesondere zum Biegen und Umformen von Blechen unter Anwendung einer in einem Koffer auf Unterstuetzungen ruhenden elastischen Einlage
US3763687A (en) * 1972-03-14 1973-10-09 Sumitomo Metal Ind Apparatus for correcting strains in stamp-forgings
DE2948915C2 (de) * 1979-12-05 1988-06-16 Degussa Ag, 6000 Frankfurt Lotlegierungen zum direkten Auflöten von oxidhaltigen Silberkontakten auf Kontaktträger
US4459735A (en) * 1980-09-08 1984-07-17 Btm Corporation Joining sheet metal
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
DE8408795U1 (de) * 1984-03-22 1985-07-18 Walter Eckold GmbH & Co KG Vorrichtungs- und Gerätebau, 3424 St Andreasberg Vorrichtung zum Verbinden eines Blechs mit einem perforierten Blech
DE3575386D1 (de) * 1984-03-22 1990-02-22 Eckold Vorrichtung Durchsetzfuegeverfahren.
US4726000A (en) * 1985-04-20 1988-02-16 Diehl Gmbh & Co. Timepiece

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3106313A1 (de) * 1980-09-08 1982-04-22 BTM Corp., 48079 St. Clair, Mich. Einrichtung und verfahren zum verbinden von blechen
EP0215449B1 (fr) * 1985-09-14 1991-05-22 RAPP, Eugen Procédé et dispositif pour assembler des plaques minces
DE3713083A1 (de) * 1986-04-17 1987-10-29 Btm Corp Einrichtung zum verbinden von blechen
US4803767A (en) * 1986-08-29 1989-02-14 Lamb Robo Clinching tool

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SOVIET INVENTIONS ILLUSTRATED,Sektion P,Q, Woche 29, 02. September 1987 DERWENT PUBLICATIONS LTD., London, P52P62 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19847794C1 (de) * 1998-10-16 1999-08-19 Eckold Ag Vorrichtung zum mechanischen Fügen flächig aufeinanderliegender Bleche durch Umformen
US6240627B1 (en) 1998-10-16 2001-06-05 Eckold Ag Apparatus for mechanical joining
WO2002081112A2 (fr) * 2001-04-04 2002-10-17 Tox Pressotechnik Gmbh & Co. Kg Outil d'assemblage par rivetage
WO2002081112A3 (fr) * 2001-04-04 2002-12-12 Tox Pressotechnik Gmbh Outil d'assemblage par rivetage

Also Published As

Publication number Publication date
US4972565A (en) 1990-11-27
EP0366987B1 (fr) 1992-01-29
CA2001636A1 (fr) 1990-04-29
JPH02155524A (ja) 1990-06-14
ATE72152T1 (de) 1992-02-15
DE3836937A1 (de) 1990-05-03
ES2030573T3 (es) 1992-11-01
CA2001636C (fr) 1995-06-06
JP2515894B2 (ja) 1996-07-10
DE58900799D1 (de) 1992-03-12
RU1773238C (ru) 1992-10-30

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