EP0614405B2 - Verfahren zur verbindung von platten - Google Patents

Verfahren zur verbindung von platten 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
English (en)
French (fr)
Other versions
EP0614405B1 (de
EP0614405A4 (en
EP0614405A1 (de
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/de
Publication of EP0614405A4 publication Critical patent/EP0614405A4/en
Publication of EP0614405B1 publication Critical patent/EP0614405B1/de
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Publication of EP0614405B2 publication Critical patent/EP0614405B2/de
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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. Platten-Vernietungsmethode für das Vernieten von mindestens zwei Platten (12, 13) miteinander, bei der ein röhrenförmiger Niet oder Rohling durch eine Obergesenkeinheit (20, 21) in eine Vernietungsstelle (11) zwischen den Platten (12, 13) getrieben oder eingeführt wird, um die zu verbindenden Platten (12, 13) in einem stützenden Untergesenk (14) zu verformen, wobei der Niet oder Rohling mit der Obergesenkeinheit zusammenwirkt, um die Platten (12, 13) zu verformen, dadurch gekennzeichnet, daß die Obergesenkeinheit ein Obergesenk (20) und eine Hülse (21) äußerlich zum Obergesenk (20) aufweist, wobei das Obergesenk (20) durch den Niet oder Rohling (10) in Eingriff mit der oberen Platte (12) getrieben wird, wobei das Obergesenk und der Niet vorwärtsbewegt werden, um die Platten (12, 13) zu verformen, und wobei die Hülse relativ zum Obergesenk (20) vorwärtsbewegt wird, um mindestens ein inneres Ende eines Schaftes des Niets oder Rohlings (10) innerhalb der Vernietungsstelle (11) nach außen zu verformen; und daß der Niet oder Rohling (10) die Platten (12, 13) nicht durchdringt.
  2. Platten-Vernietungsmethode nach Anspruch 1, bei der die zu verbindenden Platten im voraus an das Untergesenk (14) gespannt werden, bevor die Obergesenkeinheit (20, 21) den Niet oder Rohling (10) in die Platten (12, 13) treibt, um die Vernietungsstelle (11) zu bilden.
  3. Platten-Vernietungsmethode nach einem der vorhergehenden Ansprüche, bei der mindestens eine Platte ein Blech ist und mindestens eine Platte eine polymere Tafel ist, wobei die polymere Tafel im Bereich der Vernietungsstelle im voraus erwärmt wird, um den Fluß des polymeren Materials beim Verformen der Platten zu fördern.
  4. Platten-Vernietungsmethode nach einem der vorhergehenden Ansprüche, bei der ein Kleber auf den Niet oder Rohling (10) aufgetragen wird, um die Verbindung zwischen den Platten (12, 13) und dem Niet oder Rohling (10) zu unterstützen.
  5. Platten-Vernietungsmethode nach Anspruch 1, bei der ein Kleber in eine Bohrung des röhrenförmigen Niets oder Rohlings (10) gegeben wird, wobei der Kleber beim Verformen des röhrenförmigen Niets oder Rohlings (10) in die Vernietungsstelle (11) extrudiert wird, um die Verbindung zwischen den Platten (12, 13) und dem Niet oder Rohling (10) zu unterstützen.
  6. Platten-Vernietungsmethode nach einem der vorhergehenden Ansprüche, bei der der Niet oder Rohling (10) einen Schaft mit externen Streifen, Rillen, Zähnen oder anderen Vorsprüngen oder Vertiefungen aufweist, um einen zusätzlichen Halt zwischen dem Niet oder Rohling (10) und den Platten in der Vernietungsstelle (11) zu bewirken.
  7. Platten-Vernietungsmethode für das Vernieten von mindestens zwei Platten (312, 313) miteinander, wobei ein massiver oder halbröhrenförmiger Niet oder Rohling (310) verwendet wird, bei der ein Obergesenk eine übliche knopfartige Vernietungsstelle (311) in den zu verbindenden Platten (312, 313) bildet, wobei die Platten von einem Untergesenk (314) gestützt werden und das Obergesenk (320) danach zurückgezogen wird, dadurch gekennzeichnet, daß der Niet oder Rohling (310) zwischen dem Obergesenk (320) und der Vernietungsstelle (311) angeordnet wird; und daß das Obergesenk (320) vorwärtsbewegt wird, um den Niet oder Rohling (310) in die Vernietungsstelle (311) zu treiben, um die zu verbindenden Platten (312, 313) im stützenden Untergesenk zu verformen, und um mindestens das innere Ende des Schaftes des Niets oder Rohlings in der Vernietungsstelle (311) nach außen zu verformen; und daß der Niet oder Rohling (310) die Platten (312, 313) nicht durchdringt.
  8. Platten-Vernietungsmethode nach Anspruch 7, bei der mindestens eine Platte (312, 313) ein Blech ist und mindestens eine Platte eine polymere Tafel ist, wobei die polymere Tafel im Bereich der Vernietungsstelle im voraus erwärmt wird, um den Fluß des polymeren Materials beim Verformen der Platten zu fördern.
  9. Platten-Vernietungsmethode nach Anspruch 7 oder 8, bei der ein Kleber auf den Niet oder Rohling (310) aufgetragen wird, um die Verbindung zwischen den Platten (312, 313) und dem Niet oder Rohling (310) zu unterstützen.
  10. Platten-Vernietungsmethode für das Vernieten von mindestens zwei Platten (112, 113) miteinander, wobei ein Niet (110) mit einer Bohrung (122) mit einem konischen Ende (123) und einen Schaft mit einem inneren Ende einschließend verwendet wird, wobei die Methode die folgenden Schritte aufweist:
    Bereitstellen eines Obergesenks (120) mit einem Hauptkörper mit einem Eingriffsvorsprung und einem unteren Ende mit verringertem Durchmesser, um in die Bohrung (122) des Niets (110) zu passen;
    Stützen der Platten (112, 113) auf einem stützenden Untergesenk und Spannen der Platten mit einem Vorspannkopf (119);
    Anordnen des Niets (110) zwischen den Platten (112, 113) und dem Obergesenk (120); gekennzeichnet durch:
    Vorwärtsbewegen des Obergesenks (120), bis der Vorsprung des Hauptkörpers mit dem Oberteil des Niets (110) in Eingriff kommt;
    weiteres Vorwärtsbewegen des Obergesenks (120) nach unten, um die Platten (112, 113) im Untergesenk (114) zu verformen, und um die Vernietungsstelle (111) zu bilden; und
    danach wiederum Vorwärtsbewegen des Obergesenks (120) nach unten, um zu bewirken, daß mindestens das innere Ende des Schaftes des Niets (110) nach außen verformt wird, wodurch folglich die Platten (112, 113) verformt werden, um die Vernietungsstelle ohne Durchdringen der Platten durch den Niet (110) zu sichern.
  11. Platten-Vernietungsmethode nach Anspruch 10, bei der das untere Ende des Obergesenks eine Höhe aufweist, die geringer ist als die Höhe des Niets (110), und bei der, wenn der Vorsprung mit dem Niet (110) in Eingriff ist, das untere Ende des Obergesenks (120) etwas über den Platten (112, 113) beabstandet ist.
EP92923611A 1991-11-27 1992-11-25 Verfahren zur verbindung von platten Expired - Lifetime EP0614405B2 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
AU9742/91 1991-11-27
AU974291 1991-11-27
AUPK974291 1991-11-27
PCT/AU1992/000631 WO1993010925A1 (en) 1991-11-27 1992-11-25 Improved panel clinching methods

Publications (4)

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

Family

ID=3775852

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92923611A Expired - Lifetime EP0614405B2 (de) 1991-11-27 1992-11-25 Verfahren zur verbindung von platten

Country Status (12)

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

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KR102081737B1 (ko) * 2018-10-02 2020-02-26 주식회사 성우하이텍 하이브리드 접합장치 및 그를 이용한 접합구조체의 제조방법
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CN1041287C (zh) 1998-12-23
DE69230291D1 (de) 1999-12-16
IN178893B (de) 1997-07-19
ES2141115T3 (es) 2000-03-16
CA2123886A1 (en) 1993-06-10
EP0614405B1 (de) 1999-11-10
DE69230291T2 (de) 2000-06-08
MX9206870A (es) 1993-07-01
WO1993010925A1 (en) 1993-06-10
DE69230291T3 (de) 2005-08-11
ATE186484T1 (de) 1999-11-15
EP0614405A4 (en) 1997-02-05
CN1078672A (zh) 1993-11-24
EP0614405A1 (de) 1994-09-14
JPH07503663A (ja) 1995-04-20
JP3346566B2 (ja) 2002-11-18
BR9206821A (pt) 1995-12-12
KR100270634B1 (ko) 2000-12-01

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