EP0546270B1 - Verfahren zum lokalen Umformen von sprödem Material - Google Patents

Verfahren zum lokalen Umformen von sprödem Material Download PDF

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Publication number
EP0546270B1
EP0546270B1 EP92117080A EP92117080A EP0546270B1 EP 0546270 B1 EP0546270 B1 EP 0546270B1 EP 92117080 A EP92117080 A EP 92117080A EP 92117080 A EP92117080 A EP 92117080A EP 0546270 B1 EP0546270 B1 EP 0546270B1
Authority
EP
European Patent Office
Prior art keywords
anvil
die
during
brittle
subjected
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
EP92117080A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0546270A1 (de
Inventor
Matthias Dipl.-Ing. Dobrikow
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 GmbH and Co KG
Walter Eckold GmbH and Co KG Vorrichtungs und Geraetebau
Original Assignee
Eckold GmbH and Co KG
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 Eckold GmbH and Co KG, Walter Eckold GmbH and Co KG Vorrichtungs und Geraetebau filed Critical Eckold GmbH and Co KG
Publication of EP0546270A1 publication Critical patent/EP0546270A1/de
Application granted granted Critical
Publication of EP0546270B1 publication Critical patent/EP0546270B1/de
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
    • Y10T29/49908—Joining by deforming
    • Y10T29/49936—Surface interlocking

Definitions

  • the invention relates to a method for the local forming of brittle material.
  • the invention relates in particular, but not exclusively, to the joining of sheets by means of clinching techniques.
  • Such processes are widely known.
  • This technology has established itself as an economical manufacturing process in many areas, for example in vehicle construction, in air conditioning technology, in mechanical engineering when it comes to mass production.
  • Such joining processes can be used with many metals and plastics. So far, however, it has not been possible to join brittle materials, such as certain aluminum alloys, with such techniques because their elasticity is not sufficient; In general, such brittle materials can only be formed without cutting in a narrow framework.
  • the object of the invention is to provide a method that allows larger changes in shape of brittle materials than previously possible.
  • the penetration of sheets made of brittle aluminum alloys should be made possible.
  • Known clinching tools of the types mentioned initially generally comprise a die which delimits a cavity into which the sheet metal material is deformed by means of a stamp; An anvil, which forms the die base, is arranged opposite the stamp work surface.
  • the sheet material is placed under pressure in that the anvil is subjected to a corresponding spring preload in the direction opposite to the working stroke of the stamp.
  • clinching tools are known in which the anvil is spring-biased in the same direction.
  • US-A-3,771,216 discloses such an arrangement, the anvil-spring combination serving as an ejector which is intended to detach the joint from the die.
  • US-A-4,584,753 discloses a die in which the anvil protrudes spring biased over the die edge; here the cantilevered anvil stub serves as a centering element which is intended to position a pre-perforated sheet with respect to the die and with respect to the stamp. In both cases, however, the force generated by the spring is orders of magnitude lower than the forces to be applied according to the invention.
  • FIG. 1 shows the position of the components (designed for simplicity with a circular cross-section) at the beginning of the joining process.
  • FIG. 2 at the end of the joining process in axial section.
  • An anvil 12 is slidably seated in a die 10, guided in a die bore 14.
  • the upper section of the bore delimits the cavity 16 into which the material is deformed (cf. FIG. 2).
  • a shoulder 18 serves as an upper stop for a collar 20 molded onto the anvil.
  • Thread 22 is cut into the subsequent lower part of the die hole with a larger diameter and a lower stop 24 is screwed in.
  • a strong spring, here a pressure coil spring 26, is clamped between it and the collar 20 of the anvil, which biases the anvil into its upper end position, shown in FIG. 1. It can be seen that the anvil protrudes beyond the front working surface 28 of the die and is chamfered all around before joining.
  • the punch 30, driven, for example, by a hydraulic unit, first clamps the sheets 32, 34 to be joined between its working surface and the anvil, as a result of which the sheet material is subjected to a pressure load corresponding to the preload by the spring 26. During the joining, this pressure load initially increases until the anvil is pressed back into the die bore, surprisingly no material breakage occurs. Finally, the anvil sits on the lower stop and the punch pushes material into the space that is left free from the anvil chamfer, causing the stapling. It can be seen that the pressure load is effective not only before but also during enforcement.
  • the die can be hinged for easier removal and can be undercut in the area of the cavity, all of which is already known in the case of joining tools, but which could also be used here advantageously.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Forging (AREA)
  • Glass Compositions (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Insertion Pins And Rivets (AREA)
  • Adornments (AREA)
EP92117080A 1991-11-13 1992-10-07 Verfahren zum lokalen Umformen von sprödem Material Expired - Lifetime EP0546270B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9114122U 1991-11-13
DE9114122U DE9114122U1 (de) 1991-11-13 1991-11-13 Vorrichtung zum Fügen von Blechteilen

Publications (2)

Publication Number Publication Date
EP0546270A1 EP0546270A1 (de) 1993-06-16
EP0546270B1 true EP0546270B1 (de) 1995-03-29

Family

ID=6873234

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92117080A Expired - Lifetime EP0546270B1 (de) 1991-11-13 1992-10-07 Verfahren zum lokalen Umformen von sprödem Material

Country Status (9)

Country Link
US (1) US5519934A (es)
EP (1) EP0546270B1 (es)
JP (1) JPH05208221A (es)
AT (1) ATE120390T1 (es)
CA (1) CA2080998C (es)
DE (2) DE9114122U1 (es)
DK (1) DK0546270T3 (es)
ES (1) ES2072680T3 (es)
RU (1) RU2103093C1 (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19714129A1 (de) * 1997-04-05 1998-10-15 Eckold Vorrichtung Fügeverfahren und -vorrichtung

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2736471B1 (fr) * 1995-07-04 1997-09-12 Legrand Sa Ensemble connecte, son procede de realisation, et appareil electrique comportant au moins un tel ensemble connecte
KR20030005832A (ko) * 2001-07-10 2003-01-23 현대자동차주식회사 복합 프레스 금형
DE10245604A1 (de) * 2002-09-30 2004-04-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren und Vorrichtung zum dauerhaften Verbinden von einander überlappenden, plattenförmigen Bauteilen
FR2862243B1 (fr) * 2003-11-19 2006-01-06 Renault Sas Dispositif de rivetage et procede de rivetage associe.
KR100751318B1 (ko) * 2004-10-26 2007-08-22 삼성에스디아이 주식회사 판재의 접합 방법, 판재 접합 구조 및 이를 구비한 디스플레이 모듈
ES2345304T3 (es) * 2007-02-13 2010-09-20 Inventio Ag Procedimiento y herramienta para clinchar chapas metalicas gruesas y utilizacion de la herramienta.
CN101610860B (zh) * 2007-02-13 2014-02-19 因温特奥股份公司 制造钢结构连接件的方法以及一种铆接工具的使用方法
US8024848B2 (en) * 2008-10-08 2011-09-27 GM Global Technology Operations LLC Double-action clinching method
DE102010020666B4 (de) * 2010-05-17 2020-04-16 Tox Pressotechnik Gmbh & Co. Kg Matrize und Werkzeug für ein Nietwerkzeug
DE102011122037A1 (de) * 2011-12-22 2013-06-27 Kathrein-Werke Kg Verfahren zur Herstellung einer elektrischen Hochfrequenz-Verbindung zwischen zwei Plattenabschnitten sowie eine zugehörige elektrische Hochfrequenz-Verbindung
JP5602960B1 (ja) * 2014-01-16 2014-10-08 武延 本郷 接合治具、接合体の製造方法、及び、接合体
CN104056962A (zh) * 2014-06-26 2014-09-24 梧州恒声电子科技有限公司 一种高精度的快速铆合模芯
CN204221410U (zh) * 2014-10-15 2015-03-25 富鼎电子科技(嘉善)有限公司 压合机构
US10414072B2 (en) * 2016-07-20 2019-09-17 The Boeing Company Drill spring device method of use
CN108326146B (zh) * 2018-01-21 2019-11-05 新沂市邵店众创工贸发展有限公司 一种金属板材无铆连接工具
JP7503263B2 (ja) * 2020-05-15 2024-06-20 学校法人中部大学 冷間鍛造接合方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3050849A (en) * 1959-05-29 1962-08-28 Western Electric Co Method of cold forming metal
US3771216A (en) * 1971-10-27 1973-11-13 Johnson Die & Eng Co Method and tooling for extruding a closed end rivet
US3977225A (en) * 1975-03-27 1976-08-31 Aluminum Company Of America Forging method
JPS56114536A (en) * 1980-02-13 1981-09-09 Toshiba Corp Joining device of sheet material
US4757609A (en) * 1980-09-08 1988-07-19 Btm Corporation Apparatus for joining sheet material
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
JPS6252648A (ja) * 1985-09-02 1987-03-07 Hitachi Ltd メモリのデ−タ送出装置
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
DE3710929A1 (de) * 1987-04-01 1988-10-13 Eugen Rapp Verfahren und vorrichtung zum verbinden aufeinanderliegender duenner platten
DE3805688A1 (de) * 1988-02-24 1989-09-07 Eckold Vorrichtung Vorrichtung zum durchsetzfuegen von blechwerkstuecken
US5051020A (en) * 1989-11-13 1991-09-24 Tech-Line Engineering Co. Leak proof joint

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19714129A1 (de) * 1997-04-05 1998-10-15 Eckold Vorrichtung Fügeverfahren und -vorrichtung

Also Published As

Publication number Publication date
ATE120390T1 (de) 1995-04-15
US5519934A (en) 1996-05-28
DE9114122U1 (de) 1993-04-01
CA2080998C (en) 1999-09-07
DE59201778D1 (de) 1995-05-04
ES2072680T3 (es) 1995-07-16
CA2080998A1 (en) 1993-05-14
JPH05208221A (ja) 1993-08-20
DK0546270T3 (da) 1995-08-07
RU2103093C1 (ru) 1998-01-27
EP0546270A1 (de) 1993-06-16

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