EP1875976B1 - Unité de rivetage auto-poinçonnante - Google Patents

Unité de rivetage auto-poinçonnante Download PDF

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Publication number
EP1875976B1
EP1875976B1 EP20070011429 EP07011429A EP1875976B1 EP 1875976 B1 EP1875976 B1 EP 1875976B1 EP 20070011429 EP20070011429 EP 20070011429 EP 07011429 A EP07011429 A EP 07011429A EP 1875976 B1 EP1875976 B1 EP 1875976B1
Authority
EP
European Patent Office
Prior art keywords
punching
riveting
rivet
stroke
snap die
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 - Fee Related
Application number
EP20070011429
Other languages
German (de)
English (en)
Other versions
EP1875976A1 (fr
Inventor
Peter Niedenzu
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke AG
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 Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Publication of EP1875976A1 publication Critical patent/EP1875976A1/fr
Application granted granted Critical
Publication of EP1875976B1 publication Critical patent/EP1875976B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B21J15/10—Riveting machines
    • B21J15/28—Control devices specially adapted to riveting machines not restricted to one of the preceding subgroups
    • B21J15/285—Control devices specially adapted to riveting machines not restricted to one of the preceding subgroups for controlling the rivet upset cycle
    • 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
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/10—Riveting machines
    • B21J15/28—Control devices specially adapted to riveting machines not restricted to one of the preceding subgroups

Definitions

  • the invention relates to a stamped riveting unit for riveting construction, and in particular of bodyshell -Blech inconvenience, according to the preamble of claim 1.
  • the object of the invention is the riveting unit of the type mentioned in such a way that the mentioned faulty joint connections avoided in a structurally simple, series-fitting manner and a consistently high rivet quality is achieved.
  • the joining process is combined with a hardness test in such a way that only such punching elements are installed which are tested before the beginning of the actual joining operation and classified as within the permissible hardness range, while punching elements with the wrong hardness are removed from the riveting unit that hardness-related imperfect connections that must be subsequently processed in a complex manner or discarded as a committee, can not even arise, with the peculiarity that both the hardness test and the joining process with extremely low construction and time required by the riveting even in a single Working stroke are carried out during immediately consecutive Hubphasen.
  • the plastic deformation of the punching element is preferably carried out by a central, integrally formed on the Strin configuration Nietstkovs and the end side in cross-section tapering, expediently spherical segment, pyramidal or conical projection.
  • Punching rivets in particular the semi-hollow punch rivets customary for riveting body panels, but also solid rivets, punching bolts or punched nuts can be used as punching elements.
  • the punch rivet unit 1 shown in the figures is used in conjunction with a Nietmatrize 2 for riveting punch rivets 3 on sheet metal and in particular body parts 4, 5 and has as main components in a housing 6 slidably guided by housing-fixed stop pin 7 stroke-limited sheet holder 8, which is acted upon by a compression spring 9 in the extension direction, and engaging in a central Nietkanal 10 of the sheet holder 8 Nietstempel 11, which takes over the housing-side support of the compression spring 9 and is held by this in contact with the housing bottom.
  • a laterally opening into the rivet channel 10 supply channel 12 via which the punch rivets 3 cyclically air flow conveyed into the rivet channel 10 are introduced.
  • solenoid-operated cross slide 14 is arranged, which between a the rivet 10 blocking blocking position ( Fig. 1 and 2a, 2b ) and a release position is reversible.
  • the punch rivet unit 1 and the die 2 are moved apart, so that the sheet holder 8 is lowered under the action of the compression spring 9 in the housing 6 and reaches the lower, limited by the stops 7 stroke position, in which the lower Nietstempelende above of the feed channel 12, whereupon a single punch rivet 3 is introduced via the feed channel 12 into the rivet channel 10 and locked against displacement on the cross slide 14 pushed into the blocking position in the extension direction becomes.
  • the lifting drive H is activated such that the housing 6 moves in the direction of the rivet die 2 and first the sheet metal parts 4, 5 are pressed against the rivet die 2 by the sheet metal holder 8.
  • the pressure force N exerted and the stroke s of the riveting punch 11 are detected by a sensor assembly consisting of a pressure cell 17 and a displacement sensor 18 and supplied to a control stage 19 which measures the ratio of the pressure force N to the stroke s as a measure of the degree of hardness determined the rivet and the riveting unit 1 including the cross slide 14 for the subsequent joining step, when the force / displacement ratio N / s within a predetermined, in Fig. 3 hatched represented tolerance range.
  • the punch rivet 3 is then pushed out by the riveting punch 11 via the outlet end of the rivet channel 10 and, in cooperation with the rivet die 2, riveted to the sheet metal parts 4, 5, as is the case Fig.
  • the second stroke phase is omitted and the linear actuator H is reversed immediately after the hardness test, so that the punch rivet 3 past the retracted cross slide 14 from the outlet end of the rivet channel 10 freely falls and then z. B. is rejected by a via a check valve 20 released from the control stage 19 compressed air jet as a committee.
  • punch riveting unit 1 With the punch riveting unit 1 according to the invention, it is of course also possible to test other punching elements, such as punched or punched nuts, with respect to the degree of hardness and then to rivet them instead of punched rivets 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Insertion Pins And Rivets (AREA)
  • Connection Of Plates (AREA)

Claims (4)

  1. Unité de rivetage auto-poinçonnante (1) pour riveter des pièces de tôle de construction (4, 5), notamment de carrosserie brute, comportent un poinçon de rivetage (11) entraîné en mouvement de translation dans un canal de rivetage (10), un mécanisme d'alimentation (12) débouchant dans le canal de rivetage pour commander l'élément de poinçonnement (3) de façon cadencée ainsi qu'une force de poussée exercée sur l'élément de poinçonnement et un dispositif de capteur (17, 18) mesurant la course du poinçon de rivetage,
    caractérisée en ce que
    l'élément de poinçonnement (3) est arrêté dans le canal de rivetage (10), de manière bloquée en coulissement avant le rivetage et il est sollicité par une force du poinçon de rivetage (1) de façon que l'élément de poinçonnement se déforme plastiquement dans une zone partielle côté poinçon en augmentant avec l'augmentation de la course du poinçon de rivetage et
    le rapport force-course (N/s) en position arrêtée de l'élément de poinçonnement (3) se détermine en synchronisme avec la déformation plastique du dispositif de capteur (17, 18) et il est suivi par un mécanisme de commande (19, 20) qui neutralise l'élément de poinçonnement (3) en dehors d'une plage de tolérance prédéfinie du rapport déterminé force/course, et le libère dans la plage de tolérance pour l'opération d'assemblage.
  2. Unité de rivetage auto-poinçonnante selon la revendication 1,
    caractérisée en ce que
    le poinçon de rivetage (11) présente au niveau de sa surface coopérant avec l'élément de poinçonnement (3), une partie en saillie (15) qui va en diminuant en section côté extrémité et qui lors de la déformation plastique s'enfonce dans la matière du rivet, de façon croissante lorsque l'élément de poinçonnement est en position arrêtée.
  3. Unité de rivetage auto-poinçonnante selon la revendication 2,
    caractérisée en ce que
    la partie en saillie (15) a une forme de segment, de sphère, de pyramide ou de cône.
  4. Unité de rivetage auto-poinçonnante selon l'une des revendications précédentes,
    caractérisée en ce que
    l'élément de rivetage (3) est un rivet auto-poinçonnant semi-creux.
EP20070011429 2006-07-07 2007-06-12 Unité de rivetage auto-poinçonnante Expired - Fee Related EP1875976B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200610031465 DE102006031465A1 (de) 2006-07-07 2006-07-07 Stanznieteinheit

Publications (2)

Publication Number Publication Date
EP1875976A1 EP1875976A1 (fr) 2008-01-09
EP1875976B1 true EP1875976B1 (fr) 2009-01-07

Family

ID=38617209

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20070011429 Expired - Fee Related EP1875976B1 (fr) 2006-07-07 2007-06-12 Unité de rivetage auto-poinçonnante

Country Status (2)

Country Link
EP (1) EP1875976B1 (fr)
DE (2) DE102006031465A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101907605A (zh) * 2010-06-22 2010-12-08 昆明理工大学 动态响应检测金属板材自冲铆接头疲劳损伤程度的方法
DE102010053219A1 (de) * 2010-12-03 2012-06-21 Brötje-Automation GmbH Nietsteuerung
DE102012221532B4 (de) * 2011-12-09 2019-05-02 Schaeffler Technologies AG & Co. KG Keramiknietstempel mit leitendem Kern
JP5821121B2 (ja) * 2011-12-22 2015-11-24 ポップリベット・ファスナー株式会社 自己穿孔型リベット用ダイ
US9027220B2 (en) * 2012-08-07 2015-05-12 Newfrey Llc Rivet setting machine
DE102012025047B4 (de) 2012-12-20 2023-12-07 Newfrey Llc Überwachungsverfahren für einen Fügeprozess und Fügevorrichtung
CN103196369B (zh) * 2013-03-20 2015-10-14 沈阳飞机工业（集团）有限公司 弯铆钉冲头的检测方法
CN104502191B (zh) * 2014-09-28 2018-07-13 上海奥林汽车安全系统有限公司 一种用于铰链主轴铆接强度的快速检测装置
CN105562578A (zh) * 2016-03-03 2016-05-11 雄华机械(苏州)有限公司 一种汽车门锁扣组件的铆接机
CN106925713B (zh) * 2017-05-09 2018-12-18 苏州宝成汽车冲压有限公司 一种铆压自动检测防错与机械杠杠式自动脱料机构
CN109047622A (zh) * 2018-08-31 2018-12-21 苏州瑞玛精密工业股份有限公司 连杆压铆机构
CN117282909B (zh) * 2023-11-22 2024-02-09 成都航空职业技术学院 一种基于人机协作的智能铆接控制系统及铆接方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5487215A (en) * 1994-02-18 1996-01-30 Multifastener Corporation Self-adjusting head
DE19731222C5 (de) * 1997-07-21 2016-10-13 Newfrey Llc Verfahren zum Ausbilden einer Stanznietverbindung sowie eine Fügevorrichtung für Stanzniete
DE19745728A1 (de) * 1997-10-16 1999-04-22 Bayerische Motoren Werke Ag Verfahren zur optischen Kontrolle eines mechanischen Befestigungselements
DE10064243A1 (de) * 2000-12-22 2002-07-04 Strama Maschb Gmbh & Co Kg Fügevorrichtung, insbesondere Stanznietzange
JP2003001360A (ja) * 2001-06-20 2003-01-07 Nippon Pop Rivets & Fasteners Ltd 自動穿孔型リベット締結装置の締結異常検出方法及び装置
DE10131343A1 (de) * 2001-06-28 2003-01-23 Bayerische Motoren Werke Ag Stanznietkopf

Also Published As

Publication number Publication date
DE502007000361D1 (de) 2009-02-26
EP1875976A1 (fr) 2008-01-09
DE102006031465A1 (de) 2008-01-10

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