EP2608909A2 - Procédé et outil de pose d'éléments rivets aveugles - Google Patents

Procédé et outil de pose d'éléments rivets aveugles

Info

Publication number
EP2608909A2
EP2608909A2 EP11787585.6A EP11787585A EP2608909A2 EP 2608909 A2 EP2608909 A2 EP 2608909A2 EP 11787585 A EP11787585 A EP 11787585A EP 2608909 A2 EP2608909 A2 EP 2608909A2
Authority
EP
European Patent Office
Prior art keywords
setting
blind rivet
stroke
mandrel
tool
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.)
Granted
Application number
EP11787585.6A
Other languages
German (de)
English (en)
Other versions
EP2608909B1 (fr
Inventor
Heiko Schmidt
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP2608909A2 publication Critical patent/EP2608909A2/fr
Application granted granted Critical
Publication of EP2608909B1 publication Critical patent/EP2608909B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • B21J15/04—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
    • B21J15/02—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
    • B21J15/10—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 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
  • Rivet collar is made 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.
  • blind rivet elements in the form of blind rivet nuts is carried out, for example, by the so-called spin-Pu Ii method, in which the respective blind rivet nut with its nut or internal thread formed at one end of the blind rivet nut is screwed onto the external thread of a pull mandrel, i. is spindled and fixing the blind rivet used in a pre-punching of a workpiece by pulling the mandrel with simultaneous support of the blind rivet nut with its female thread rivet nut end or Nietflansch located on the tool system, namely deforming the Nietbundes from a not recorded in the pre-punching Section of the blind rivet nut body.
  • the pulling of the mandrel takes place either until reaching a predetermined tensile force or reaching one, for example, by at least one
  • Stop given pulling path (setting stroke). Upon reaching the complete setting stroke or the tensile force of the mandrel is unscrewed from the internal thread of the set blind rivet nut.
  • a common reason for a poor setting of blind rivet nuts in workpieces is in a manual processing, but also in an automatic processing in that the mandrel is not completely screwed into the respective blind rivet nut, ie there is only an incomplete spindle of the blind rivet nut on the mandrel, and Although in such a way that the blind rivet nut or the rivet flange of the tool system have a predetermined tolerance range exceeding axial distance and / or the mandrel is recorded with its thread only in a partial length of the internal thread of the blind rivet nut.
  • blind rivet nut on the mandrel the disadvantage that the latter engages only with a reduced axial length in the internal thread of the blind rivet nut and there is therefore a tearing or damage to this internal thread, especially if the maximum stroke or Ziehweg Ziehdorns 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 aborted or stopped before the actual setting of the setting process or a correction of the setting stroke then takes place if the respective Blindnietelement not properly on Blindniettechnikmaschine is arranged, ie a distance exceeding a predetermined tolerance range of the
  • a method according to claim 1 or 2 is formed.
  • a Blindniet- or setting tool is the subject of claim 1 1.
  • 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 programmable ei adjustable.
  • Fig. 1 shows a schematic representation of a flat material, for example, made of a metallic sheet or sheet metal workpiece together with a blind rivet nut in the initial state and riveted or set
  • Fig. 2 in an enlarged schematic partial representation of the inserted into the workpiece
  • FIG. 3 in a schematic functional representation of the setting tool together with a
  • 1 is one made of a flat material, for example a metallic sheet, e.g.
  • a blind rivet nut 3 is inserted, the left in its Figure 1 not yet deformed state, which it has immediately after insertion or -before in the pre-perforation 2 , and which is reproduced on the right in its deformed or riveted or set state in FIG.
  • a metallic material for example a metallic sheet
  • blind rivet nut 3 made of steel or aluminum blind rivet nut 3 consists in the manner known to those skilled essentially of a sleeve-like Blindnietmutteroasa 4 with a continuous, coaxially arranged with the axis BA of the blind rivet nut 3 opening 5 and with a radially over the outer surface of the Blindniet emotionss 4 radially projecting Nietflansch. 6 at the upper end in the Figure 1 blind rivet nut 3.
  • Blind rivet nut body 4 essentially forms two sections, namely the section 4. 1 remote from the flange 6, on which the opening 5 with a nut or nut
  • FIG Figure 1 shown on the right to a the axis BA annularly enclosing bead-like rivet collar 8 permanently deformed, which abuts against the other side of the workpiece 1 .2 of the workpiece, so that the blind rivet nut 3, the workpiece 1 in the pre-perforation encompassing against squeezing and turning or twisting is secured in the workpiece 1. Since the wall thickness of the blind rivet nut body 4 is reduced in the section 4.2, the defined deformation of the blind rivet nut body 4 into the rivet collar 8 takes place in this area not received in the pre-perforation 2.
  • 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 provided at a free end with a thread 10 pulling mandrel 1 1 and a mandrel 1 1 enclosing Tool head 12, which forms a mandrel 1 1 also enclosing annular system 13.
  • the setting of the respective blind rivet nut 3 takes place according to the spin-pull method in such a way that the ready-to-stand at a delivery position, not shown
  • Blind rivet nut 3 by turning the axis arranged with the axis BA and arranged from the Nietflansch 6 ago in the opening 5 introduced mandrel 1 1 with the internal thread 7 on the thread 10 of the mandrel 1 1 is screwed or spindled, in such a way that the blind rivet nut. 3 Finally, in an ideal manner with the side facing away from the thread 7 of Blindnietmutter stresses 4 or with the Nietflansches 6 against the system 13 of the
  • blind rivet nut 3 inserted into the pre-perforation 2 such that the Nietflansch 6 abuts against the workpiece side 1.1.
  • the turning of the mandrel 1 1 during spin-on takes place by a rotary drive, which is shown schematically in FIG.
  • the setting is carried out by relative movement between the mandrel 1 1 and the tool head 1, in such a way that when applied against the Nietflansch 6 tool head 12, a tensile force on the mandrel 1 1 on the with the threaded end 7 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 carried out before the actual setting or deformation of the section 4.2 in the rivet collar 8 Form of a small advance stroke VH.
  • the relative movement required between the mandrel 1 1 and the tool body 12 or the tool body 13 ⁇ setting stroke SH) required for setting the blind rivet nut 3 is achieved, for example, by a drive acting between these tool parts, e.g. achieved in the form of at least one piston-cylinder arrangement or a hydraulic cylinder, which is indicated schematically in the figure 3 with 15.
  • the path of Setzhubes SH and / or of the mandrel. 1 1 applied traction to a predetermined value limit In particular, when the drive 1 5 is formed by at least one piston-cylinder arrangement, for example by a hydraulic cylinder, the maximum setting stroke SH is predetermined by corresponding stops.
  • the setting tool 9 is part of a
  • the result is an increased forward stroke VH and thus a reduction of the setting stroke SH available for setting.
  • Blind rivet nut 3 must be removed from the workpiece 1 according to the usual procedure in a complex repair procedure and replaced by a properly set blind rivet nut 3.
  • This disadvantage is avoided with the monitoring and control electronics 16 with processor 17 which are shown in FIG. are assigned: a sensor 18 which detects the path of the relative movement between the mandrel 1 1 and the tool body 12 and supplies a dependent of this path measurement signal to the processor 1 7;
  • a pressure sensor 19 which serves to detect the hydraulic pressure applied to the drive 15 or in a cylinder chamber there and supplies a corresponding measurement signal to the processor 17;
  • a control valve assembly 20 which is driven by the processor 1 7, namely for controlling the drive 15 and for controlling the said drive via a line 21 supplied pneumatic or hydraulic pressure medium, such as hydraulic oil;
  • a sectional part arrangement 22 via which the data transmission between the processor 1 7 and the sensors 18 and 1 and the control valve arrangement 20 takes place and which also has an external connection for data traffic with other peripheral devices and / or for controlling further functional units of the setting tool 9 or serves this setting tool having facility.
  • 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 when being set as a function of the detected preliminary stroke VH.
  • blind rivet nut 3 or a formation of an insufficient Nietbundes 8 comes.
  • the Blind rivet nut 3 is then either spindled properly on the mandrel 1 1 in a post-process or replaced by another, on the mandrel 1 1 properly spindled blind rivet nut 3.
  • the distance measuring sensor 18 or a corresponding displacement measuring system is required.
  • the senor 18 is a switch or micro-switch, which is then actuated when, after the initiation of the first initiated with little force setting operation due to the distance between the Nietflansch 6 an insufficiently spindled blind rivet nut 3 and the tool system 13
  • the setting process is carried out (forward stroke VH within a given tolerance range) or aborted (VH outside a specified tolerance range).
  • the set stroke SH is also possible to correct the set stroke SH as a function of the detected advance stroke VH, ie to increase, for example, in the form that the actually performed corrected set stroke SH is the sum of the detected advance stroke VH and a predetermined set stroke, is defined by the type of blind rivet nuts 3 used and in particular also by the thickness of the respective workpiece 1.
  • the correction of the setting stroke for example, by a motorized adjustment of these attacks.
  • the correction of the setting stroke SH can also take place in that the relative movement between the mandrel 1 1 and the tool body 12 is constantly monitored by the sensor 18 or another displacement measuring device and / or the pressure of the pressure medium and thus the pulling force of the mandrel 1 with the sensor 1 9 constantly monitored and after reaching predetermined, the corrected setting stroke corresponding values, an immediate shutdown of the drive 1 5 by the processor 19, for example by blocking the control valve assembly 20 takes place.
  • the correction of the setting stroke only takes place when the preliminary stroke VH initially detected after the initiation of the setting process lies within a tolerance range which ensures that the drawing mandrel 11 has its thread 10 engages over at least such an axial length in the internal thread 7 of the blind rivet nut 3, the (axial length) required for the proper shaping of the rivet collar 8, exerted by the mandrel 1 1 pulling force tearing of the internal thread 7 avoids security.
  • the invention is left underlying thought. All embodiments or methods have in common that detected at the beginning of the respective setting process, the state of the spindle spindle of the respective blind rivet nut on the mandrel 1 1 in a Dedektierphase and then performed depending on this state of the setting process or
  • 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.

Landscapes

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

Abstract

Procédé de pose de rivets-écrous aveugles ou d'éléments rivets aveugles similaires dans des pièces, selon lequel la pose de l'élément rivet aveugle introduit dans un trou ménagé préalablement dans la pièce ou plus précisément la formation d'une liaison rivetée se produisent lors d'une course de pose par déformation permanente d'un segment de l'élément rivet aveugle sous l'action d'une force de traction exercée sur l'extrémité de l'élément rivet aveugle par un élément de traction d'un outil de pose, une autre extrémité de l'élément rivet aveugle se trouvant simultanément en appui contre une surface de l'outil de pose, à l'encontre de la force de traction.
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 true EP2608909A2 (fr) 2013-07-03
EP2608909B1 EP2608909B1 (fr) 2016-11-09

Family

ID=45023458

Family Applications (1)

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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ITBO20120276A1 (it) * 2012-05-21 2013-11-22 Ober S P A Dispositivo elettro-idraulico a pistola con controllo elettronico per la deformazione di elementi di fissaggio
DE102014210075B4 (de) * 2014-05-27 2024-03-21 Bayerische Motoren Werke Aktiengesellschaft Vorrichtung zur Ermittlung des Setzweges bei weggesteuerten Blindnietmuttersetzgeräten
FR3028783B1 (fr) * 2014-11-24 2016-12-09 Bollhoff Otalu Sa Systeme et procede de sertissage d'un composant de fixation sur un support
DE102015216360A1 (de) * 2015-08-27 2017-03-02 Bayerische Motoren Werke Aktiengesellschaft Verfahren zum Betreiben eines Nietwerkzeugs und Nietwerkzeug
DE102015115858B4 (de) * 2015-09-21 2018-04-26 Vvg-Befestigungstechnik Gmbh & Co. Verfahren zum Einrichten des Zugdorns eines Nietgerätes für Blindnietelemente und Nietgerät
DE102017112231B4 (de) 2017-06-02 2024-02-29 Heiko Schmidt Verfahren zum Verankern von Verbindungselementen in ein bleibend verformbares metallisches Flachmaterial oder daraus hergestellte Bauteile oder Werkstücke, Verbindungselement sowie Setzwerkzeug
JP2019010694A (ja) * 2017-06-29 2019-01-24 豊田鉄工株式会社 ブラインドナット取り外し工具及びブラインドナット取り外し構造
US11673243B2 (en) 2018-09-05 2023-06-13 Milwaukee Electric Tool Corporation Blind rivet nut-setting tool
DE102020110969A1 (de) 2020-04-22 2021-10-28 Bayerische Motoren Werke Aktiengesellschaft Nietsetzvorrichtung

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Also Published As

Publication number Publication date
WO2012025102A3 (fr) 2012-04-19
WO2012025102A2 (fr) 2012-03-01
CA2804942C (fr) 2015-12-29
WO2012025102A4 (fr) 2012-06-14
US20130180098A1 (en) 2013-07-18
DE102010035613A1 (de) 2012-03-01
ES2604692T3 (es) 2017-03-08
EP2608909B1 (fr) 2016-11-09
CA2804942A1 (fr) 2012-03-01
US9682419B2 (en) 2017-06-20

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