EP2608909B1 - Procédé et appareil de pose de rivets aveugles - Google Patents

Procédé et appareil de pose de rivets aveugles Download PDF

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Publication number
EP2608909B1
EP2608909B1 EP11787585.6A EP11787585A EP2608909B1 EP 2608909 B1 EP2608909 B1 EP 2608909B1 EP 11787585 A EP11787585 A EP 11787585A EP 2608909 B1 EP2608909 B1 EP 2608909B1
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EP
European Patent Office
Prior art keywords
setting
blind rivet
mandrel
tool
pulling
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Application number
EP11787585.6A
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German (de)
English (en)
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EP2608909A2 (fr
Inventor
Heiko Schmidt
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Individual
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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
    • 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
    • B21J15/04—Riveting hollow rivets mechanically
    • B21J15/043—Riveting hollow rivets mechanically by pulling a mandrel
    • 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
    • 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
    • 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
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/0007—Tools for fixing internally screw-threaded tubular fasteners
    • B25B27/0014—Tools for fixing internally screw-threaded tubular fasteners motor-driven
    • 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
    • B21J15/04—Riveting hollow rivets mechanically
    • 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
    • Y10T29/49947—Assembling or joining by applying separate fastener
    • Y10T29/49954—Fastener deformed after application
    • Y10T29/49956—Riveting
    • 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
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53709—Overedge assembling means
    • Y10T29/5377—Riveter

Definitions

  • the invention relates to a method for setting blind rivet elements according to the preamble of claim 1 or 2 and to a setting tool for processing or setting of blind rivet elements according to the preamble of claim 11.
  • Blind rivet elements according to the invention are primarily blind rivet nuts, but also other commonly used Blindniet comprise, such as. Blind rivets and blind rivet bolts.
  • Setting of blind rivet elements in the sense of the invention means fixing the respective, e.g. in a Vorlochung a workpiece inserted Blindnietiatas by riveting, i. by forming a Nietbundes by applying a tensile force on a tension element, for example via a mandrel to a region or an end of the Blindnietiatas, which is the Nietflansch of Blindnietiatas located on which the Blindnietelement is supported when setting on a tool system.
  • the formation of the rivet collar takes place by permanent deformation of a rivet element section. With the rivet collar the Blindnietelement is particularly fixed against squeezing and / or against rotation in the workpiece.
  • blindnietelementen in the form of blind rivet nuts for example, with the so-called spin-pull process, in which the respective blind rivet nut screwed with its formed on one end of the Blindnietmutter stresses nut or internal thread on the external thread of a mandrel, that is spindled and fixing the Blind rivet nut inserted into a pre-punching of a workpiece by pulling the mandrel while simultaneously supporting the blind rivet nut with its blind rivet nut or rivet flange remote from the female thread on the tooling, namely deforming the rivet collar from a portion of the rivet nut body not received in the pre-punching.
  • the pulling of the mandrel is either up to a predetermined tensile force or reaching a predetermined example by at least one stop pulling path (setting stroke). Upon reaching the complete Setting stroke or the pulling force of the mandrel is unscrewed from the internal thread of the set blind rivet nut.
  • a common cause of poor setting of blind rivet nuts in workpieces is in manual processing, but also in automatic processing in that the mandrel is not completely screwed into the respective blind rivet nut, i. only an incomplete Aufspindelung the blind rivet nut is present on the mandrel, in such a way that the blind rivet or the Nietflansch of the tool system have a predetermined tolerance exceeding axial distance and / or the mandrel with its thread only in a partial length of the internal thread of the Blind rivet nut is added.
  • the setting process i. When pulling the mandrel, this results in a first advance, which takes place without deforming the Blindnietmutter stresses and in which the blind rivet nut is brought only to rest against the tool system.
  • the maximum stroke of the pulling spindle is predetermined, for example, by at least one stop
  • the actual setting stroke available for setting is reduced by this preliminary stroke, with the result that the actual setting stroke or the actual pulling path is not sufficient for proper formation of the rivet collar is sufficient.
  • the improper or incomplete spindling of the respective blind rivet nut on the mandrel has the disadvantage that the latter engages only with a reduced axial length in the internal thread of the blind rivet nut and therefore there is a tearing or damage to this internal thread, namely in particular, even if the maximum stroke or pull of the mandrel is not limited by stops, but the setting process is controlled by the force exerted on the respective blind rivet nut pulling force.
  • the object of the invention is to provide a method which avoids the aforementioned disadvantages and in which already in advance, i. before the actual setting of the setting process then stopped or stopped or a correction of the setting stroke then takes place when the respective Blindnietelement is not properly arranged on Blindniettechnikmaschine, i. Having a predetermined tolerance range exceeding distance from the tool system.
  • a method according to claim 1 or 2 is formed.
  • a Blindniet- or setting tool is the subject of claim 11.
  • a special feature of this Blindnietwerkmaschines is that the respective setting stroke is adjustable, preferably continuously and / or for example by a motor-actuated end stop.
  • This design has the fundamental advantage that with one and the same riveting or setting tool different Blindnietiata, in particular can be processed at different workpiece or sheet thicknesses.
  • the setting stroke is programmably adjustable.
  • 1 is a made of a flat material, for example of a metallic sheet material, for example made of sheet steel or aluminum sheet workpiece with a pre-perforation 2.
  • a blind rivet nut 3 is inserted in the FIG. 1 left in its not yet deformed state, which it has immediately after insertion or -before in the pre-perforation 2, and in the FIG. 1 is reproduced on the right in its deformed or riveted or set state.
  • the blind rivet nut 3 made of a metallic material, for example made of steel or aluminum, consists essentially of a sleeve-like Blindnietmutter Sciences 4 with a continuous, coaxially arranged with the axis BA of the blind rivet nut 3 opening 5 and with a on the outer surface of the Blind rivet body 4 radially projecting Nietflansch 6 at the in the FIG. 1
  • the sleeve-like Blindnietmutêt oder 4 formed in a circular cylindrical shape, for example on the outer and inner surfaces, essentially forms two sections, namely the section 4.1, which is remote from the flange 6 and at which the opening 5 is provided with a female or female thread 7.
  • the blind rivet nut 3 rests with its rivet flange 6 against the one side of the workpiece 1.1 of the workpiece 1, which in the representation of FIG. 1 the top is, and the not recorded in the pre-perforation 2 section 4.2 is in the in the FIG.
  • the setting of the respective blind rivet nut takes place with a setting tool, generally designated 9 in the figures.
  • the setting tool 9 includes, inter alia, a drawing mandrel 11 provided with a thread 10 at a free end and a mandrel 11 enclosing the mandrel 11 Tool head 12, which forms a mandrel 11 also enclosing annular system 13.
  • the setting of the respective blind rivet nut 3 takes place by the spin-pull method in such a way that the blind rivet nut 3, which is provided at a delivery position (not shown), is arranged by rotating the axis-like axis BA and inserted into the opening 5 from the rivet flange 6 Ziehdorns 11 with the internal thread 7 is screwed or spindled onto the thread 10 of the mandrel 11, in such a way that the blind rivet nut 3 finally in an ideal manner with the side facing away from the thread 7 Blindnietmutter stresses 4 or with the Nietflansches 6 against the plant 13 of the tool body 12 abuts.
  • the blind rivet nut 3 is inserted into the pre-perforation 2 such that the rivet flange 6 rests against the workpiece side 1.1.
  • the turning of the mandrel 11 during spindling is done by a rotary drive in the FIG. 3 is shown schematically at 14.
  • the setting is carried out by relative movement between the mandrel 11 and the tool head 12, in such a way that when fitting against the Nietflansch 6 tool head 12, a tensile force on the mandrel 11 on the threaded 7 exposed end of the Blindnietmutter stresses 4 exerted and thereby the section 4.2 is deformed into the Nietbund 8.
  • a relative movement between the pull mandrel 11 and the tool body 12 or the tool system 13 is often in the form of the rivet collar 8 before the actual setting or deformation of the section 4.2 a small advance stroke VH.
  • the required relative to the setting of the blind rivet nut 3 relative movement between the mandrel 11 and the tool body 12 and the system 13 is achieved for example by acting between these tool parts drive, for example in the form of at least one piston-cylinder assembly or a hydraulic cylinder, the Indian FIG. 3 is indicated schematically with 15.
  • blind rivet nuts 3 In a manual processing of the blind rivet nuts 3, in which the respective setting tool 9 is designed as a hand-operated tool, but also in a machine processing of blind rivet nuts 3, in the (processing) the setting tool 9 is part of a manufacturing plant or a workstation such a system can It can not be ruled out that blind rivet nuts 3 are partially spindled onto the drawing mandrel 11 so that they are still spaced from the tooling 13 with their rivet flange 6.
  • the result is an increased forward stroke VH and thus a reduction of the setting stroke SH available for setting.
  • monitoring and control device 16 3 different methods are possible by detecting the state of the Aufspindelung the respective blind rivet nut, which prevent improper setting of the respective blind rivet nut 3, for example, either by stopping or aborting the setting process or by correcting the size the setting stroke SH and / or the pulling force exerted on the pulling mandrel 11 during setting as a function of the detected preliminary stroke VH.
  • blind rivet nuts 3 various methods for setting blind rivet nuts 3 are described. It is understood that the invention is not limited to blind rivet nuts, but completely refers generally to blind rivet, for example, on blind rivet.

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

Claims (11)

  1. Procédé destiné à poser des écrous à sertir en aveugle (3) ou des éléments à sertir en aveugle similaires dans des pièces à usiner (1), lors duquel le placement de l'élément à sertir en aveugle concerné introduit dans un pré-perçage (2) de la pièce à usiner (1), respectivement la création d'un ensemble serti (8) s'effectue en une course de pose (SH), par déformation durable d'un tronçon (4.2) de l'élément à sertir en aveugle (3) en soumettant une extrémité (4.1) d'un élément à sertir en aveugle à une force de pose à l'aide d'un élément de traction (11) d'un outil de pose (9), tout en appuyant simultanément une autre extrémité (6) de l'élément à sertir en aveugle sur un appui d'outil (13) de l'outil de pose (9) à l'encontre de ladite force de pose, avant la création de l'ensemble serti (8), l'état de la disposition de l'élément à sertir en aveugle (3) concerné sur l'outil de pose et/ou l'écart correspondant audit état entre l'élément à sertir en aveugle (3) et l'appui d'outil (13) étant déterminé,
    caractérisé en ce
    qu'en fonction de l'état déterminé, dans le cas d'une disposition en bonne et due forme de l'élément à sertir en aveugle (3), l'opération de pose est poursuivie ou dans le cas d'une disposition incorrecte, elle est interrompue et/ou il s'effectue une correction de la dimension de la course de pose (SH).
  2. Procédé destiné à poser des écrous à sertir en aveugle (3) dans des pièces à usiner (1), lors duquel la pose de l'écrou à sertir en aveugle (3) introduit dans un pré-perçage (2) d'une pièce à usiner (1) et mandriné par un taraudage sur un filetage d'un mandrin d'étirage (11) d'un outil de sertissage s'effectue en une course de pose (SH), par application d'une force de pose sur le mandrin d'étirage (11) tout en appuyant simultanément une extrémité (6) de l'élément à sertir en aveugle éloignée du taraudage (7) sur un appui d'outil (13) de l'outil de pose (9), à savoir en créant un ensemble serti (8) par déformation durable d'un tronçon (4.2) de l'écrou à sertir en aveugle (3), caractérisé en ce qu'avant la création de l'ensemble serti (8), l'état du mandrinage de l'écrou à sertir en aveugle (3) concerné sur le mandrin d'étirage (11) et/ou l'écart correspondant audit état entre l'élément à sertir en aveugle (3) et l'appui d'outil (13) est déterminé et en fonction dudit état, dans le cas d'un mandrinage en bonne et due forme, l'opération de pose est poursuivie ou dans le cas d'une disposition incorrecte, elle est interrompue et/ou il s'effectue une correction de la dimension de la course de pose (SH).
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que lors de l'introduction de l'opération de pose, d'abord dans une phase de détection, il est exercé sur l'élément de traction ou sur le mandrin d'étirage (11) une force qui ne suffit pas pour créer l'ensemble serti (8) et en ce que pendant ladite phase de détection, le déplacement relatif entre l'élément de traction ou le mandrin d'étirage (11) et l'appui d'outil (13) est détecté en tant que pré-course (VH) et en ce qu'il s'effectue une mise à l'arrêt ou une interruption de l'opération de pose si la pré-course (VH) dépasse un ordre de tolérance prédéfini.
  4. Procédé selon la revendication 3, caractérisé en ce que la pré-course (VH) est détectée par un capteur de déplacement ou un transducteur de position (18) et/ou en ce que la mise à l'arrêt ou l'interruption de l'opération de pose est provoquée ou initiée par au moins un interrupteur électrique, qui est activé ou manoeuvré en présence d'une pré-course (VH) dépassant un ordre de tolérance prédéfini.
  5. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que dans la phase de détection, un entraînement (14) d'élément de traction ou de mandrin d'étirage formé par au moins un dispositif de piston/cylindre est soumis au moins une fois brièvement à une pleine pression de travail, également utilisée pour la pose d'un fluide sous pression pneumatique ou hydraulique et la pré-course (VH) déclenchée à cet effet est déterminée, par exemple par un capteur de déplacement (18) ou par un transducteur de position et/ou par la mesure de la pression qui s'installe après la brève soumission à la pression dans l'au moins un dispositif de piston/cylindre.
  6. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que dans la phase de détection, un entraînement (14) d'élément de traction ou de mandrin d'étirage, de préférence au moins un dispositif de piston/cylindre formant ledit entraînement est soumis à la pression de travail d'un fluide sous pression pneumatique ou hydraulique jusqu'à l'atteinte d'une pression ou d'une force de pose agissant sur l'élément de traction ou mandrin d'étirage (11) qui est inférieure à la force de pose nécessaire pour la création de l'ensemble serti (8) et en ce qu'à cet effet, la pré-course (VH) est déterminée, ainsi que de préférence la pression dans l'au moins un dispositif de piston/cylindre formant l'entraînement (14) du mandrin d'étirage est supervisée, par exemple par au moins un capteur (19) mesurant la pression du fluide sous pression pneumatique ou hydraulique ou par une boîte dynamométrique ou par une jauge extensométrique, qui détecte par exemple la pression ou la force entre l'élément de traction ou le mandrin d'étirage (11) et l'appui d'outil (13).
  7. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que sous considération de la pré-course (VH) déterminée dans la phase de détection, il s'effectue une correction de la course de pose (SH) pour la pose de l'élément à sertir en aveugle ou de l'écrou à sertir en aveugle (3), par exemple sous la forme que la dimension de la pré-course (VH) est additionnée au moins en partie à une force de pose initiale qui est prédéfinie par le type des écrous à sertir en aveugle (3) et par la nature des pièces à usiner, notamment par l'épaisseur des pièces à usiner (1).
  8. Procédé selon la revendication 7, caractérisé en ce que la correction de la course de pose (SH) s'effectue lorsque la pré-course (VH) ne dépasse pas un ordre de tolérance prédéfini qui assure un engagement du mandrin d'étirage (11) dans le taraudage de l'écrou à sertir en aveugle (3) avec une longueur axiale suffisante et en ce que lors du dépassement de l'ordre de tolérance, il s'effectue une mise à l'arrêt ou une interruption de l'opération de pose.
  9. Procédé selon la revendication 6 ou 7, caractérisé en ce que la correction de la course de pose (SH) s'effectue par un réglage automatique ou motorisé d'au moins une butée déterminant la dimension de la course de pose.
  10. Procédé selon l'une quelconque des revendications 6 à 8, caractérisé en ce que la correction de la course de pose (SH) s'effectue par sa supervision avec un capteur de déplacement ou avec un transducteur de position et/ou par supervision de la force exercée sur l'élément de traction ou sur le mandrin d'étirage (11) et/ou de la pression d'un dispositif de piston/cylindre formant l'entraînement de l'élément de traction ou du mandrin d'étirage.
  11. Outil de pose d'éléments à sertir en aveugle (3), par exemple d'écrous à sertir en aveugle dans des pièces à usiner (1) avec un élément de traction (11), à l'aide duquel l'élément à sertir en aveugle (3) concerné, introduit dans un pré-perçage (2) de la pièce à usiner (1) peut être soumis sur une extrémité de l'élément à sertir en aveugle à une force de traction, en appuyant simultanément une autre extrémité (6) de l'élément à sertir en aveugle sur un appui d'outil (13) de l'outil de pose (9), à savoir pour créer un ensemble serti (8) par déformation durable de l'élément à sertir en aveugle (3) dans une course de pose (SH) de l'élément de traction (11), caractérisé par :
    - des moyens pour la détermination effectuée avant la création de l'ensemble serti (8) de l'état de la disposition de l'élément à sertir en aveugle (3) sur l'outil de pose et/ou de l'écart correspondant audit état entre l'élément à sertir en aveugle (3) et l'appui d'outil (13) ; et
    - des moyens pour la poursuite, en fonction dudit état, de l'opération de pose dans le cas d'une disposition en bonne et due forme de l'élément à sertir en aveugle (3) sur l'outil de pose ou pour interrompre et/ou corriger la dimension de la course de pose (SH) si la disposition est incorrecte.
EP11787585.6A 2010-08-26 2011-08-24 Procédé et appareil de pose de rivets aveugles Active EP2608909B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201010035613 DE102010035613A1 (de) 2010-08-26 2010-08-26 Verfahren sowie Werkzeug zum Setzen von Blindnietelementen
PCT/DE2011/001652 WO2012025102A2 (fr) 2010-08-26 2011-08-24 Procédé et outil de pose d'éléments rivets aveugles

Publications (2)

Publication Number Publication Date
EP2608909A2 EP2608909A2 (fr) 2013-07-03
EP2608909B1 true EP2608909B1 (fr) 2016-11-09

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Application Number Title Priority Date Filing Date
EP11787585.6A Active EP2608909B1 (fr) 2010-08-26 2011-08-24 Procédé et appareil de pose de rivets aveugles

Country Status (6)

Country Link
US (1) US9682419B2 (fr)
EP (1) EP2608909B1 (fr)
CA (1) CA2804942C (fr)
DE (1) DE102010035613A1 (fr)
ES (1) ES2604692T3 (fr)
WO (1) WO2012025102A2 (fr)

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US20130180098A1 (en) 2013-07-18
WO2012025102A2 (fr) 2012-03-01
DE102010035613A1 (de) 2012-03-01
ES2604692T3 (es) 2017-03-08
WO2012025102A4 (fr) 2012-06-14
CA2804942C (fr) 2015-12-29
US9682419B2 (en) 2017-06-20
WO2012025102A3 (fr) 2012-04-19
EP2608909A2 (fr) 2013-07-03
CA2804942A1 (fr) 2012-03-01

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