WO2014008960A1 - Procédé d'assemblage de pièces et dispositif d'assemblage - Google Patents

Procédé d'assemblage de pièces et dispositif d'assemblage Download PDF

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Publication number
WO2014008960A1
WO2014008960A1 PCT/EP2012/073589 EP2012073589W WO2014008960A1 WO 2014008960 A1 WO2014008960 A1 WO 2014008960A1 EP 2012073589 W EP2012073589 W EP 2012073589W WO 2014008960 A1 WO2014008960 A1 WO 2014008960A1
Authority
WO
WIPO (PCT)
Prior art keywords
electrodes
workpieces
nietkopfsetzer
welding head
resistance welding
Prior art date
Application number
PCT/EP2012/073589
Other languages
German (de)
English (en)
Inventor
Johann Kaussler
Original Assignee
Siemens Aktiengesellschaft
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 Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Priority to EP12798243.7A priority Critical patent/EP2861362A1/fr
Priority to MX2015000496A priority patent/MX2015000496A/es
Priority to CN201280074681.5A priority patent/CN104661771A/zh
Publication of WO2014008960A1 publication Critical patent/WO2014008960A1/fr

Links

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
    • B21J15/08—Riveting by applying heat, e.g. to the end parts of the rivets to enable heads to be formed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/002—Resistance welding; Severing by resistance heating specially adapted for particular articles or work
    • B23K11/004—Welding of a small piece to a great or broad piece
    • B23K11/0066—Riveting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/30—Features relating to electrodes

Definitions

  • the following invention relates to a method for joining workpieces and a connection device.
  • Workpieces such as parts of electrical equipment, are usually connected together as parts to be joined during production. Bonding takes place, for example, by soldering,
  • the method provides to use a designed as a resistance welding head welding head for riveting and in particular for hot or hot riveting.
  • a resistance welding head with coaxially arranged electrodes which enclose, for example, from above and below to be connected to two working ⁇ pieces, can be used as riveting station by an appropriate change of the electrodes.
  • both electrodes verse ⁇ hen with an adapter that act as Nietkopfsetzer, pin-shaped connecting elements can be used as a rivet.
  • the electrodes can also be exchanged, the new changed electrodes being designed as rivet head setters.
  • the modified electrodes or adapter pieces have the same material as the electrodes for resistance welding.
  • the modified electrodes or adapter pieces have the same electrical resistance as the electrodes for resistance welding ⁇ .
  • a hot riveting can be realized, wherein Wi through the resistor of the connecting element the same is heated due to the flowing ⁇ sequent electric current.
  • the connecting element or the rivet expands due to the heat supply during the riveting process from being deformed by means of resistance welding head or formed as Nietkopfsetzer electrodes and then cooled.
  • Upon cooling of the rivet shrinks insbeson ⁇ particular the rivet shank and leads to an improved strength of the pressed together frictional workpieces or components together.
  • the electrodes, the electrodes provided with adapter pieces or the electrodes designed as rivet head setters are relatively connected during riveting. oscillated by side along duri ⁇ fenden through the connecting element acting axis.
  • the workpieces are held sprung in a workpiece holder.
  • the fe ⁇ stop holding results in a homogeneous force entry in particular ⁇ special, when the electrodes or the Nietkopfsetzer are relatively moved against each other and act on the connecting element to be deformed.
  • Embodiments of the method provide that at least three workpieces, which each have an opening, are riveted to a connecting element.
  • they may be bimetallic strips used in relays or electromechanical switches.
  • the two, ie both electrodes are each replaced by a Nietkopfset ⁇ zer or both are provided with an adapter piece, which includes a Nietkopfsetzer.
  • Variants of the method include the steps:
  • Resistance welding head miteinan at the weld miteinan ⁇ is resistance welding head miteinan at the weld miteinan ⁇ .
  • the welding head that the two electrodes are moved relative to the welding point and a constant force is applied to the welding point. Due to the constant force, which can be ⁇ example, by a spring-mounted mounting of the two electrodes to each other, a fusion or welding of the two workpiece materials results particularly low with each other.
  • the electrodes are used for welding or riveting depending on the connection method, which is necessary in particular in a production line.
  • the resistance welding head comprises at least two electrodes, wherein the resistance welding head is keptstal ⁇ Tet, to heat with the aid of an electric current, the workpieces at a weld until melting. At least one electrode is kepts taltet ⁇ as Nietkopfsetzer.
  • the connecting device is provided with a STEU ⁇ er worn which such a way by a current which both electrodes controls or causes a resistance welding takes place.
  • connection device is set up to carry out a method as described above.
  • a holding device for the sprung storage of the workpieces is further provided.
  • a resilient mounting allows a homogeneous force, in particular on both sides or ends of a connecting element.
  • connection device further comprises, in embodiments, drive means for moving the electrodes and / or the rivet head setter (s) on an axis of action relative to each other.
  • drive means for example, a pneumatic drive or an electric drive in question. Actuators or servos can also be used as drive devices.
  • the drive means should develop sufficient force to compress the workpieces during welding and to deform during riveting the connecting element or the rivet and rivet head, which is heated in particular by a current flow.
  • the electrodes and / or the Nietkopfsetzer are resiliently mounted with respect to an axis of action.
  • the resilient mounting also allows a particularly homogeneous force influence on the workpieces or Vietnamesesele ⁇ elements to be joined together.
  • Figure 1, 4, 6 are schematic representations of an embodiment ⁇ example of a connecting device for explaining aspects of a method for connecting workpieces.
  • Figure 2 is a perspective view of a ⁇ exporting approximately example of a welding head for ⁇ A kit in a method for joining work pieces;
  • Figure 3 is a schematic representation of an example of exporting approximately ⁇ a welding head for He ⁇ purification of aspects of a method for joining workpieces.
  • Figure 5, 7 are schematic detail views of the embodiment of a connecting device of Figures 1, 4, 6 for explaining aspects of a method for joining workpieces.
  • Fig. 1 shows a connecting device for joining or joining workpieces together.
  • the connecting device 1 in this case comprises two formed as a resistance welding heads weld heads 2, 3.
  • Each welding head 2, 3 has an electrode 4, 5, with the aid of an elastic elemene ⁇ tes 8, 9 is resiliently mounted. It is a movement 16, 17 of the welding heads or electrodes 4, 5 along an axis of action 18 possible.
  • the two welding heads 2, 3 are each coupled to a drive device 11, 12, for example an electric motor or a pneumatic system.
  • the respective drive 11, 12 can supply the corresponding control signals CT to the drive devices by means of a control device 13, along the arrows 16, 17, ie along the effective axis 18.
  • a movement of the electrodes along the effective axis 18 takes place coaxially with one another. It is a workpiece holder 10 is provided, can be held in the workpieces 6, 7 to be joined. In an operating situation, the workpieces, as shown in Fig. 1, positioned between the electrodes 4, 5 and clamped by suitable control of the drives 11, 13 of the electrodes 4, 5. In resistance welding, an electric current 14 is generated by the electrodes, the two workpieces 6, 7 in a weld area 15 and the electrode 5. In particular, since the electric resisting ⁇ state of the electrodes 4, 5 is lower than the electrical resistance of the workpieces to be joined 6, 7, the material of the workpieces 6, 7 at the welding point 15 on heated. The welding heads 2, 3 or the control device 13 controls a current 14 in such a way that the workpiece materials 6, 7 melt and fuse or weld together at the welding point 15. At the same time a homogeneous
  • the electrode holder 21 and electrode attachment 22 are held in suitable guide rails 19, which is held along the axis 18 with a spring element 8, which is arranged around a piston and abuts on a spacer sleeve 20.
  • the shaft not provided with a reference numeral is moved by a pneumatic cylinder 42, which is activated by the drive 11.
  • FIG. 3 shows schematically method steps which are carried out in a connection method for riveting workpieces with one another or with the connection device 1, as shown in FIG. 1.
  • a resistance welding head 2 with the welding electrode 4 which is elastically gela ⁇ siege with the aid of a spring 8 and a drive 11, shown schematically.
  • the electrode 4 is exchanged for an electrode 24 which on the workpiece side comprises a recess or trough 26.
  • the trough 26 serves as Nietkopfsetzer in the riveting process. That is, the Recess or trough 26 has the shape of the later Nietkopfes.
  • the welding electrode 4 can also be provided with an adapter piece 23, which has a corresponding depression or recess 26.
  • the adapter piece 23 is then attached to the electrode 4, screwed or fastened with other known ⁇ th means.
  • the adapter piece 23 has the same electrical characteristics as the electrode 4.
  • FIG. 4 further shows that the workpieces 28, 29 to be joined each comprise an opening 31, 32 and are inserted into a workpiece holder 30 of a holder 10.
  • the holding device 10 for the workpieces 28, 29 is also spring-mounted.
  • a mounting plate 35 which can play, be a mounting table on ⁇ , provided that includes a plurality of pins, for example three or four pins, which are not shown here.
  • the pins 33 are each surrounded by a spring element 34, such as a spiral spring, and allow spring-mounted bearing of the holding device 10 with the workpieces 28, 29.
  • the holding device 10 is made of aluminum.
  • a cylindrical connecting member into the coaxially arranged holes or openings 31, used 32nd 5 a detail of the connecting device 1 is indicated. It can be seen in the detail display ⁇ ment, the two workpieces 28, 29, whose openings are arranged coaxially along the effective axis 18 of the connecting device.
  • the connecting element 36 which consists of a plastically deformable material and is cylindrical in the exemplary embodiment. Preference ⁇ wise, the connecting element 36 and the rivet ge ⁇ know positive connection with the holes in the workpieces 28, 29.
  • FIG. 6 shows an operating situation of the connecting device 1 during hot or hot riveting.
  • the control device 13 controls the drive devices 11, 12 via suitable control signals CT such that they initially travel in the direction of the joint.
  • the two Nietsetzer 24, 25 thus press on the connecting element 36.
  • the Steuerein ⁇ direction 13 causes by not shown here current sources, that a heating current 37 between the electrodes or Nietsetzern 24, 25 flows through the connecting element 36.
  • the connecting element 36 has a material wel ⁇ ches has a higher electrical resistance than the Elect roden ⁇ or rivet 24, 25.
  • the connecting member is heated and expands there due to the heat supply from.
  • the hot rivet or the hot connecting element 36 has particularly good hole life characteristics, so that in principle not completely round or symmetrical openings in the workpieces 28, 29 can be present.
  • there is an oscillating hot riveting whereby a simultaneous oscillating introduction of force onto the heated rivet or the hot connecting element 36 occurs from above and below. This is done by control with the aid of the control device 13 and the example pneumatic actuators 11, 12 for the welding ⁇ or rivet heads 2, 3.
  • both the welding or rivet heads 24, 25 as well as the factory - Piece carrier 10 is a particularly homogeneous and gleichmä ⁇ tiger force entry to the riveting. As a result, a ho ⁇ mogeneous and high process quality of the rivet is achieved.
  • a deformation of the hot Verbin ⁇ -making elements 36 takes place.
  • FIG. 7 shows a variant of the riveting method for connecting three flat workpieces with holes.
  • Fig. 7 shows a trimetal strip 28, 29, 38, wherein the individual sheets 28, 29, 38 are connected by a rivet. It can be seen from above acting Nietsetzer 24, which is an electrode of the welding head, and the bottom acting rivet 25, which is another electrode of the
  • Welding head or another welding head represents.
  • the arrows 16, 17 indicate the movement and force of the welding heads.
  • the sprung mounting of the electrodes or rivet heads 24, 25 is indicated.
  • the initially cylindrical connecting element 36 is deformed in the form of a rivet, as shown in FIG. 7.
  • the rivet head shrinks slightly on cooling, and provides a particularly tight seal and a Connection of the elements or the workpieces 28, 29, 38 with ⁇ each other. Due to the shrinkage of the rivet shank results in an additional power friction.
  • the proposed method and the illustrated connection device which allows a combination of riveting processes and welding processes, allow a versatile use thereof in production lines or assembly tables. The result is a multiple use of the resource resistance welding head, so that no additional Fü ⁇ or connecting stations must be kept in the assembly operation. It is sufficient a simple replacement of the welding electrodes or a fitting with adapter pieces of the electrodes of the resistance welding head.
  • the indicated workpieces are usually semi-finished parts, which are further processed at various assembly stations.
  • an improved joining station in the manner of the connecting device, as presented, and by the presented Vietnamesesver ⁇ drive an expanded and improved use of conventional Widerwandssch spaStationen.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Connection Of Plates (AREA)
  • Resistance Welding (AREA)

Abstract

L'invention concerne un procédé et un dispositif d'assemblage de pièces (8, 9) comportant une tête de soudage pouvant servir à souder et à riveter. Ce procédé comprend les étapes suivantes : fourniture d'une tête de soudage par résistance (2, 3) comportant au moins deux électrodes (3, 4); remplacement d'au moins une des électrodes (3, 4) par un dispositif de pose de tête de rivet (24, 25) ou équipement d'au moins une électrode (3, 4) avec une pièce d'adaptation (23) comprenant un dispositif de pose de tête de rivet; disposition de deux pièces (28, 29) présentant respectivement une ouverture (31, 32), entre les électrodes (3, 4) ou les dispositifs de pose de tête de rivet (24, 25) de la tête de soudage par résistance (2), de telle manière que les ouvertures (31, 32) sont coaxiales; insertion d'un élément d'assemblage (36) dans les ouvertures (31, 32); et rivetage des pièces (28, 29), l'élément d'assemblage (36) étant déformé à l'aide des électrodes (3, 4) et/ou du dispositif de pose de tête de rivet (24, 25).
PCT/EP2012/073589 2012-07-12 2012-11-26 Procédé d'assemblage de pièces et dispositif d'assemblage WO2014008960A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP12798243.7A EP2861362A1 (fr) 2012-07-12 2012-11-26 Procédé d'assemblage de pièces et dispositif d'assemblage
MX2015000496A MX2015000496A (es) 2012-07-12 2012-11-26 Procedimiento para unir piezas de trabajo y dispositivo de union.
CN201280074681.5A CN104661771A (zh) 2012-07-12 2012-11-26 用于连接工件的方法和连接装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012212214.1 2012-07-12
DE201210212214 DE102012212214A1 (de) 2012-07-12 2012-07-12 Verfahren zum Verbinden von Werkstücken und Verbindungsvorrichtung

Publications (1)

Publication Number Publication Date
WO2014008960A1 true WO2014008960A1 (fr) 2014-01-16

Family

ID=47324111

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/073589 WO2014008960A1 (fr) 2012-07-12 2012-11-26 Procédé d'assemblage de pièces et dispositif d'assemblage

Country Status (5)

Country Link
EP (1) EP2861362A1 (fr)
CN (1) CN104661771A (fr)
DE (1) DE102012212214A1 (fr)
MX (1) MX2015000496A (fr)
WO (1) WO2014008960A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105436387A (zh) * 2015-12-16 2016-03-30 南车二七车辆有限公司 一种轨道车辆热铆接装置及其使用方法
CN105600123A (zh) * 2014-11-13 2016-05-25 萨基姆通讯能源及电信联合股份公司 包括盒子和盖子的组件以及将盖子紧固到盒子上的方法
WO2017162537A1 (fr) * 2016-03-22 2017-09-28 Siemens Aktiengesellschaft Tête de soudage par résistance à bloc-ressort et installation de soudage par résistance

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DE102015010734A1 (de) 2015-08-17 2017-02-23 Grenzebach Maschinenbau Gmbh Vorrichtung und Verfahren zur niederohmigen Verschweißung von Blechen mit hoher Taktzahl
DE102016203081A1 (de) 2016-02-26 2017-08-31 Siemens Aktiengesellschaft Verfahren, Anordnung und Steuerung zur Zufuhr eines Hilfsstoffs
DE102016210318A1 (de) 2016-06-10 2017-12-14 Robert Bosch Gmbh Stempel für eine Verstemm- und/oder Vernietvorrichtung und Verfahren zum Verstemmen oder Vernieten eines Werkstücks
DE102016213578A1 (de) 2016-07-25 2018-01-25 Bayerische Motoren Werke Aktiengesellschaft Verfahren zum unlösbaren Einbringen von Fügehilfselementen in ein Bauteil, Bauteil mit Fügehilfselementen und Bauteilverbund
CN106270348B (zh) * 2016-09-18 2018-04-20 中国农业大学 一种具有加热功能的电池铆接装置及其铆接方法
CN108115071A (zh) * 2016-11-28 2018-06-05 镇江市丹徒区荣炳欣荣机械厂 一种铝材铆接装置
CN107900593B (zh) * 2017-12-25 2023-10-31 苏州格洛佛精密科技有限公司 动铁喇叭传导杆焊接用多功能装置
CN109078338B (zh) * 2018-07-23 2020-10-16 青岛鑫集美工艺品有限公司 一种铆眼方法
DE102018119641A1 (de) * 2018-08-13 2020-02-13 Branson Ultraschall Niederlassung Der Emerson Technologies Gmbh & Co. Ohg Schweißanlagen-Positionier-Anordnung
CN109127987B (zh) * 2018-09-26 2024-01-26 天津七所高科技有限公司 半自动铆接设备
CN111347002B (zh) * 2018-12-20 2022-04-12 捷普电子(新加坡)公司 压铆治具
CN110125307B (zh) * 2019-05-21 2020-06-16 桂林航天工业学院 一种用于铝合金板局部自冲铆接的辅助装置
JP7360668B2 (ja) * 2020-01-22 2023-10-13 株式会社小糸製作所 車輌用灯具

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GB210128A (en) * 1922-10-17 1924-01-17 Thomas Edward Murray Improvements in and relating to electric riveting machines and processes

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105600123A (zh) * 2014-11-13 2016-05-25 萨基姆通讯能源及电信联合股份公司 包括盒子和盖子的组件以及将盖子紧固到盒子上的方法
CN105436387A (zh) * 2015-12-16 2016-03-30 南车二七车辆有限公司 一种轨道车辆热铆接装置及其使用方法
WO2017162537A1 (fr) * 2016-03-22 2017-09-28 Siemens Aktiengesellschaft Tête de soudage par résistance à bloc-ressort et installation de soudage par résistance

Also Published As

Publication number Publication date
CN104661771A (zh) 2015-05-27
DE102012212214A1 (de) 2014-01-16
MX2015000496A (es) 2015-06-03
EP2861362A1 (fr) 2015-04-22

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