EP0614405B2 - Procedes ameliores d'assemblage de minces feuilles de tole - Google Patents

Procedes ameliores d'assemblage de minces feuilles de tole Download PDF

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Publication number
EP0614405B2
EP0614405B2 EP92923611A EP92923611A EP0614405B2 EP 0614405 B2 EP0614405 B2 EP 0614405B2 EP 92923611 A EP92923611 A EP 92923611A EP 92923611 A EP92923611 A EP 92923611A EP 0614405 B2 EP0614405 B2 EP 0614405B2
Authority
EP
European Patent Office
Prior art keywords
rivet
panels
slug
punch
panel
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
EP92923611A
Other languages
German (de)
English (en)
Other versions
EP0614405A1 (fr
EP0614405A4 (en
EP0614405B1 (fr
Inventor
Stuart Edmund Blacket
Ralph Fuhrmeister
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.)
Atlas Copco IAS UK Ltd
Original Assignee
Henrob Ltd
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
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Application filed by Henrob Ltd filed Critical Henrob Ltd
Publication of EP0614405A1 publication Critical patent/EP0614405A1/fr
Publication of EP0614405A4 publication Critical patent/EP0614405A4/en
Application granted granted Critical
Publication of EP0614405B1 publication Critical patent/EP0614405B1/fr
Publication of EP0614405B2 publication Critical patent/EP0614405B2/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
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/02—Riveting procedures
    • B21J15/025—Setting self-piercing rivets
    • 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
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/10—Riveting machines
    • B21J15/36—Rivet sets, i.e. tools for forming heads; Mandrels for expanding parts of hollow rivets

Definitions

  • This invention relates to improved panel clinching methods.
  • the term “clinching” is also known as “press joining” or “integral fastening”.
  • Spot welding is the most commonly used technique for joining vehicle body components in the automotive industries. As the strength of each spot weld cannot be guaranteed, eg. due to the inclusion of rubbish between the components, or poor weld penetration, designers must increase the number of welds to ensure adequate joint strength.
  • Aluminium has great potential in the automobile field due to its light weight, but the lack of a suitable spot welding method is one reason which has minimised its application.
  • a further alternative method is metal clinching, where two sheets of metal are deformed into a locking engagement using a punch-and-die combination. Examples of metal clinching methods are disclosed in:
  • a panel clinching method according to claim 1.
  • the rivet or slug may be inserted into the joint as the joint is formed, the rivet or slug co-operating with the punch to deform the panels into the supporting die.
  • the rivet or slug co-operates with the metal panels into the die, and a sleeve external to the punch then deforms the rivet or slug within the joint.
  • the bore of the rivet or slug may be threaded, serrated or otherwise profiled to engage and support an anchor for, eg. a wiring loom support, a trim cover panel fastener or the like.
  • a plastic insert may be fitted to the rivet or slug to provide a flush outer face.
  • the panels are pre-clamped to the die before the punch drives the rivet or slug into the panels to form the clinched joint; or before the clinched joint is formed and the rivet or slug is then inserted into the joint.
  • the invention is particularly suitable for joining sheet metal panels, it is also suitable for polymeric materials (eg. Polyethylene, polyurethane, polypropylene, nylon) where one or more metal panels are substituted by panels of polymeric material.
  • polymeric materials eg. Polyethylene, polyurethane, polypropylene, nylon
  • the methods are suitable for joining, eg. An aluminium sheet to a polypropylene sheet, where the polymeric sheet may be locally preheated (eg. By the supporting die) to assist in the "flow" of the polymeric material as the joint is formed.
  • the rings or components may also be formed of polymeric material and be clinched to metal and/or polymeric material sheets.
  • the shanks of the rivets or slugs may be provided with external splines, grooves, teeth or other protrusions or recesses to provide additional grip between the rivets or slugs and the panels in the clinched joint.
  • Adhesives can be applied, eg. to the shanks of the rivets or slugs to assist bonding of the rivets or slugs to the panels. Adhesives may also be provided within the bore of the tubular or semi-tubular rivets or slugs to be extruded into the clinched joint, as the rivets or slugs are deformed, to assist the bonding of the rivets or slugs to the panels.
  • the metal panels 12, 13 to be joined together are supported on the die assembly 14 of a clinching tool(s), the die assembly having expandable and contractable collets 16 associated with a collet holder 17 and anvil 18 arranged to allow the joint 11 to be released when formed.
  • the clinching tool 15 has a pre-clamping head 19 which clamps the metal panels 12, 13 to the die assembly and has internal (spring-loaded) balls 19A to locate and centralise the rivet 10.
  • a punch 20 is slidably journalled in a sleeve 21, slidably journalled in the pre-clamping head 19, and the punch 20 and sleeve 21 are connected to respective hydraulic rams (not shown).
  • the punch 20 is driven through the rivet 10 into engagement with the upper panel 12; the sleeve 21 engaging the rivet 10.
  • the punch 20 and rivet 10 are advanced to deform the metal panels 12,13 into the die assembly 14 (see FIG 4).
  • the sleeve 21 is then advanced to cause the inner end of the rivet 10 to be outwardly-deformed (see FIGS 5 and 6).
  • the anvil 18 can be spring-loaded or forcibly raised as a post-forming operation against the punch 20 to assist in deforming the rivet or slug.
  • the insertion and deformation of the rivet assists in locking the metal panels 12, 13 together, with increase in the shear and axial separation strength(s) (ie. in the direction of arrows A and B, respectively).
  • the bore 22 of the rivet 10 may be threaded to receive a fastener or plug to support, eg. an electrical wiring loom or a plastic insert to form a flush cover for the clinched joint 11.
  • a modified tubular rivet 110 has a tapered end 123 to its inner bore 122.
  • the sleeve 21 is eliminated and the punch 120 is slidably journalled in the pre-clamping head 119.
  • the metal sheets 112, 113 are supported by the die assembly 114 and clamped thereto by the clamping head 119.
  • the punch 120 engages the rivet 110 (see FIG 9) and drives the rivet 110 into the metal panels 112, 113 which are deformed into the die assembly 114 (see FIG 10).
  • the punch 120 is further advanced (see FIG 11) to deform the inner end of the rivet 110 to form the clinched joint 111 (see FIG 12).
  • a solid or semi-tubular rivet or slug may be used.
  • a solid slug 210 (FIG 13) has a concave recess 222 at its lower end and is used to form the clinched joint 211 of FIG 16.
  • the metal sheets 212, 213 are clamped to the die assembly 214 by the clamping head 219 (see FIG 14).
  • the punch 220 is advanced to drive the slug 210 (as an extension of the punch 220) into the metal panels 212, 213 to deform the panels into the die assembly 214 to form the clinched joint 211.
  • the head of the slug 210 is flush with the outer face of panel 212 and such a joint is suitable where aesthetic appeal is required, eg. on a visible surface of a vehicle body.
  • the semi-tubular slug 310 (see FIG 17) has a tapered end 323 to its bore 322.
  • the metal panels 312, 313 are pre-clamped to the die assembly 314 by the clamping head 319 and the punch 320 is advanced (see FIG 19) to form a conventional button-type clinched joint 311A (see FIG 20).
  • the punch 320 is retracted and a semi-tubular slug 310 is placed in the clinching tool.
  • the pre-clamping head 319 clamps the panels (see FIG 21) and the punch 320 is advanced to drive the slug 310 into the clinched joint 311A to deform the slug 310 to form the clinched joint 311 (see FIG 23).
  • a component 510 (see FIGS 24 to 26), with a tapered recess or bore 522, and a screw-threaded hole 525 (as part of a sub-assembly - not shown) can also be employed as the die for the clinched joint 511 and provide a mount for the sub-assembly secured to the panels 512, 513.
  • a solid slug 210 can be pressed into the clinched joint 511.
  • the slug 210 may be screw-threaded and have a slot, Philips-head slot or an Allen-head recess to enable the slug 210 to be removed later if required for dis-assembly of the joint 511).
  • FIGS 27 to 29 show the attachment of a second component 610, with a bore 622 and a plain spigot (FIG 27) or screw-threaded end spigot 626 (FIG 28), secured to the clinch-joint 611.
  • the spigot may also be profiled, e.g. engageable in a catch or lock means).
  • FIG 29 shows the component 610 supported by a die assembly 614 during the clinching step.
  • one or both panels may be a polymeric sheet (e.g. polypropylene), it being preferred that the inner sheet, (e.g. 13, 113) being the polymeric sheet and the die assembly may be heated at the location of the clinched joint to assist "flow" of the polymeric material.
  • a polymeric sheet e.g. polypropylene
  • the inner sheet e.g. 13, 113
  • the die assembly may be heated at the location of the clinched joint to assist "flow" of the polymeric material.
  • the rivets 10, 110; slugs 210, 310; or components 510, 610 be of the same type of material as the panels as this will obviate the need for disassembly of the joints.
  • the use of an 8mm solid rivet or slug in conjunction with a clinched joint increase the shear strength of a sheet metal joint by 50% and the strength to both the shear and axial separation directions can be maintained within controlled limits, unlike spot welds.
  • This means the number of clinched joints can be much less than the number of spot welds, and joints can also support sub-assemblies.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Insertion Pins And Rivets (AREA)
  • Connection Of Plates (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Finishing Walls (AREA)

Claims (11)

  1. Procédé de rabattement d'au moins deux panneaux (12, 13), dans lequel un rivet ou un pion tubulaire est enfoncé ou inséré par un assemblage de poinçon (20, 21) dans un joint rabattu (11) entre les panneaux (12, 13) pour déformer les panneaux (12, 13) reliés dans une matrice de support (14), le rivet ou le pion coopérant avec l'assemblage de poinçon pour déformer les panneaux (12, 13), caractérisé en ce que l'assemblage de poinçon comprend un poinçon (20) et un manchon (12) externe au poinçon (20) le poinçon (20) étant enfoncé à travers le rivet ou le pion (10) et engagé dans le panneau supérieur (12), le poinçon et le rivet étant avancés pour déformer les panneaux (12, 13) et le manchon étant avancé par rapport au poinçon (20) pour déformer au moins une extrémité interne d'une tige du rivet ou du pion (10), vers l'extérieur dans le joint rabattu (11) et en ce que le rivet ou le pion (10) ne pénètre pas dans les panneaux (12, 13).
  2. Procédé de rabattement de panneaux selon la revendication 1, dans lequel les panneaux à relier sont soumis à un serrage préalable sur la matrice (14) avant que l'assemblage de poinçon (20, 21) n'entraíne le rivet ou le pion (10) dans les panneaux (12, 13) pour former le joint rabattu (11).
  3. Procédé de rabattement de panneaux selon l'une quelconque des revendications précédentes, dans lequel au moins un panneau est une feuille métallique, au moins un panneau étant une feuille polymère, la feuille polymère étant préchauffée dans la zone du joint rabattu pour favoriser l'écoulement du matériau polymère lors de la déformation des panneaux.
  4. Procédé de rabattement de panneaux selon l'une quelconque des revendications précédentes, dans lequel un adhésif est appliqué sur le rivet ou le pion (10) pour favoriser le collage entre les panneaux (12, 13) et le rivet ou le pion (10).
  5. Procédé de rabattement de panneaux selon la revendication 1, dans lequel un adhésif est appliqué sur un alésage du rivet ou du pion tubulaire (10), l'adhésif étant extrudé dans le joint rabattu (11) lorsque le rivet ou le pion tubulaire (10) est déformé pour favoriser le collage entre les panneaux (12, 13) et le rivet ou le pion (10).
  6. Procédé de rabattement de panneaux selon l'une quelconque des revendications précédentes, dans lequel le rivet ou le pion (10) comporte une tige avec des cannelures externes, des rainures, des dents ou d'autres saillies ou évidements pour établir une adhérence additionnelle entre le rivet ou le pion (10) et les panneaux dans le joint rabattu (11).
  7. Procédé de rabattement d'au moins deux panneaux (312, 313) par l'intermédiaire d'un rivet ou d'un pion solide ou semi-tubulaire (310), dans lequel un poinçon forme un joint rabattu conventionnel du type à bouton (311) dans les panneaux (312, 313) à relier, les panneaux étant supportés par une matrice (314), le poinçon (320) étant ensuite rétracté; caractérisé en ce que le rivet ou le pion (310) est agencé entre le poinçon (320) et le joint rabattu (311); le poinçon (320) étant avancé pour enfoncer le rivet ou le pion (310) dans le joint rabattu (311) pour déformer les panneaux (312, 313) à relier dans une matrice de support, et pour déformer vers l'extérieur au moins l'extrémité interne de la tige du rivet ou du pion dans le joint rabattu (311), et en ce que le rivet ou le pion (310) ne pénètre pas dans les panneaux (312, 313).
  8. Procédé de rabattement de panneaux selon la revendication 7, dans lequel au moins un panneau (312, 313) est une feuille métallique, au moins un panneau étant une feuille polymère, la feuille polymère étant préchauffée dans la zone du joint rabattu pour favoriser l'écoulement du matériau polymère lors de la déformation des panneaux.
  9. Procédé de rabattement de panneaux selon les revendications 7 ou 8, dans lequel un adhésif est appliqué sur le rivet ou le pion (310) pour favoriser le collage entre les panneaux (312, 313) et le rivet ou le pion (310).
  10. Procédé de rabattement d'au moins deux panneaux (112, 113) par l'intermédiaire d'un rivet (110) comportant un alésage (122) avec une extrémité effilée (123) et englobant une tige comportant une extrémité interne, le procédé comprenant les étapes ci-dessous:
    fourniture d'un poinçon (120) comportant un corps principal avec un épaulement d'engagement et une extrémité inférieure à diamètre réduit destinée à être ajustée dans l'alésage (122) du rivet (110);
    support des panneaux (112, 113) sur une matrice de support et serrage des panneaux par une tête de pré-serrage (119);
    agencement du rivet (110) entre les panneaux (112, 113) et le poinçon (120); caractérisé par les étapes ci-dessous:
    avance du poinçon (120) jusqu'à ce que l'épaulement du corps principal s'engage dans la partie supérieure du rivet (110);
    avance ultérieure du poinçon (120) vers le bas pour déformer les panneaux (112, 113) dans la matrice (114) et pour former le joint rabattu (111); et
    nouvelle avance du poinçon (120) vers le bas pour entraíner la déformation vers l'extérieur d'au moins l'extrémité interne de la tige du rivet (110), avant de déformer les panneaux (112, 113) pour fixer le joint rabattu sans pénétration du rivet (110) dans les panneaux.
  11. Procédé de rabattement de panneaux selon la revendication 10, dans lequel l'extrémité inférieure du poinçon a une hauteur inférieure à une hauteur du rivet (110); un léger espacement de l'extrémité inférieure du poinçon (120) au-dessus des panneaux (112, 113) se produisant lors de l'engagement de l'épaulement dans le rivet (110).
EP92923611A 1991-11-27 1992-11-25 Procedes ameliores d'assemblage de minces feuilles de tole Expired - Lifetime EP0614405B2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
AU9742/91 1991-11-27
AUPK974291 1991-11-27
AU974291 1991-11-27
PCT/AU1992/000631 WO1993010925A1 (fr) 1991-11-27 1992-11-25 Procedes ameliores d'assemblage de minces feuilles de tole

Publications (4)

Publication Number Publication Date
EP0614405A1 EP0614405A1 (fr) 1994-09-14
EP0614405A4 EP0614405A4 (en) 1997-02-05
EP0614405B1 EP0614405B1 (fr) 1999-11-10
EP0614405B2 true EP0614405B2 (fr) 2004-12-29

Family

ID=3775852

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92923611A Expired - Lifetime EP0614405B2 (fr) 1991-11-27 1992-11-25 Procedes ameliores d'assemblage de minces feuilles de tole

Country Status (12)

Country Link
EP (1) EP0614405B2 (fr)
JP (1) JP3346566B2 (fr)
KR (1) KR100270634B1 (fr)
CN (1) CN1041287C (fr)
AT (1) ATE186484T1 (fr)
BR (1) BR9206821A (fr)
CA (1) CA2123886A1 (fr)
DE (1) DE69230291T3 (fr)
ES (1) ES2141115T3 (fr)
IN (1) IN178893B (fr)
MX (1) MX9206870A (fr)
WO (1) WO1993010925A1 (fr)

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CN107626875B (zh) * 2017-09-30 2019-07-16 昆明理工大学 一种实心钉杆辅助的半空心自冲铆铆钉装置及铆接方法
JP7035695B2 (ja) * 2018-03-26 2022-03-15 トヨタ自動車株式会社 接合装置および接合体の製造方法
KR102081742B1 (ko) * 2018-10-02 2020-02-26 주식회사 성우하이텍 하이브리드 접합장치 및 그를 이용한 접합구조체의 제조방법
KR102081744B1 (ko) * 2018-10-02 2020-02-26 주식회사 성우하이텍 하이브리드 접합장치 및 그를 이용한 접합구조체의 제조방법
KR102081737B1 (ko) * 2018-10-02 2020-02-26 주식회사 성우하이텍 하이브리드 접합장치 및 그를 이용한 접합구조체의 제조방법
US11185912B2 (en) * 2019-10-29 2021-11-30 The Boeing Company Automated rivet apparatus for automated installation of semi-tubular fastener rivets

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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

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DE2140936B2 (de) † 1971-08-16 1973-08-09 Siebau Siegener Stahlbauten Gmbh, 5910 Kreuztal Verfahren zum verbinden von blechen
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
US4614017A (en) † 1981-10-28 1986-09-30 Walter Eckold Gmbh & Co. Kg Device for joining metal sheets by a rivetting-type method

Also Published As

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DE69230291D1 (de) 1999-12-16
DE69230291T2 (de) 2000-06-08
WO1993010925A1 (fr) 1993-06-10
EP0614405A1 (fr) 1994-09-14
CN1078672A (zh) 1993-11-24
ATE186484T1 (de) 1999-11-15
BR9206821A (pt) 1995-12-12
EP0614405A4 (en) 1997-02-05
CN1041287C (zh) 1998-12-23
KR100270634B1 (ko) 2000-12-01
JP3346566B2 (ja) 2002-11-18
DE69230291T3 (de) 2005-08-11
EP0614405B1 (fr) 1999-11-10
JPH07503663A (ja) 1995-04-20
ES2141115T3 (es) 2000-03-16
MX9206870A (es) 1993-07-01
IN178893B (fr) 1997-07-19
CA2123886A1 (fr) 1993-06-10

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