WO2018178186A1 - Procédé de pose d'un raccordement assemblé par technique de formage - Google Patents

Procédé de pose d'un raccordement assemblé par technique de formage Download PDF

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Publication number
WO2018178186A1
WO2018178186A1 PCT/EP2018/057988 EP2018057988W WO2018178186A1 WO 2018178186 A1 WO2018178186 A1 WO 2018178186A1 EP 2018057988 W EP2018057988 W EP 2018057988W WO 2018178186 A1 WO2018178186 A1 WO 2018178186A1
Authority
WO
WIPO (PCT)
Prior art keywords
setting
force
auxiliary joining
joining part
difference
Prior art date
Application number
PCT/EP2018/057988
Other languages
German (de)
English (en)
Inventor
Normen Fuchs
Thomas Nehls
Original Assignee
Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
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 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. filed Critical Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
Priority to EP18714759.0A priority Critical patent/EP3600715A1/fr
Publication of WO2018178186A1 publication Critical patent/WO2018178186A1/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
    • B21J15/10—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

Definitions

  • the invention is in the field of mechanical engineering and especially in the field of joining technology. It can be used with particular advantage in riveted joints.
  • Blind rivet nuts formed, which allow the processing and setting of only one working side.
  • a blind rivet nut is usually inserted through an opening of the components to be joined and it will
  • blind riveting for example, from DE 602004 000 246 T2 discloses the use of blind rivet nuts, in which the tensile force is applied by means of a threaded bolt, which is screwed into the closing head and movement usually after compression again Will get removed.
  • a setting process are basically setting devices, for example from DE 33 06 827 AI known, which control the joining process by mechanical stops and monitoring the setting force and the setting path.
  • Riveting known using a riveting tool driven by a motor, with an electric motor whose current is detected for monitoring the setting force.
  • the path traveled by the rivet element during the setting process is repeatedly measured by the movement of the setting device.
  • Various measuring points with respect to the path and the setting force applied at each measuring point are checked and compared with reference values, whereby the setting process of the rivet element is qualitatively not accepted if, at a measuring point, the setting force applied there lies outside the reference force value range for this measuring point.
  • DE 10 2013 112 363 A1 discloses a method for producing a compound connected by forming technology, in which the setting path is measured together with the force exerted and difference quotients are formed.
  • the setting process is the method according to DE 10 2013 112 363 AI by a predetermined breaking point on the rivet
  • the present invention has for its object to provide a method for setting a compound-bonded compound with or without an auxiliary joining part and a setting device for setting such a connection, the conclusion of a viable connection even with variations of input variables such as manufacturing tolerances of auxiliary joining parts or components guarantee.
  • the object is achieved with the features of the invention by a method according to claim 1.
  • the claims 2 to 11 relate to advantageous embodiments of the method.
  • the claim 12 relates to a setting device for setting an auxiliary joining part and the claims 13 to 18 relate to advantageous embodiments of such a setting device.
  • the invention accordingly relates to a method for producing a compound-bonded compound of at least two components or of a component with an auxiliary joining part, in which by a continuous
  • Component material of one or more of the components is formed, wherein during the setting process, the applied force and the setting path are detected.
  • the object is achieved by repeatedly forming difference quotients from a difference between consecutively exerted forces F and a difference of the traveled setting path S and with at least one
  • Reference value are compared and that the setting process is aborted in the range of an increase in the process force as soon as the difference quotient reaches or exceeds a predetermined reference value.
  • the difference quotient determined in this way continuously or regularly connects the process variables setting path and setting force during the setting process and enables the individual evaluation of the joining process and the assessment of the reliability of the joint connection under
  • the process curve which describes the change of setting force with the setting path, shows that the setting force initially increases until a plastic deformation of the auxiliary joining part / rivet or the components to be joined begins, then thereafter, the setting force only slightly increases and sometimes even slightly decreases and to the end of the
  • the abort criterion can also be the increase in the setting force / the exceeding of a reference value of the difference quotient after passing through a plateau / area with a difference quotient close to zero.
  • At least one difference quotient is greater than or equal to one
  • Difference quotient must be compared with a single stored reference value in order to check the occurrence of the abort criterion. There is thus no need to elaborate determination of reference values along the process curve for preparing the settlement path or for reference measurement for individual types of rivets. It has to be for every type of
  • Joining connection only a single reference size can be determined as a termination criterion in the form of a predetermined difference quotient.
  • the forming compound can be combined with or without
  • An advantageous embodiment of the invention is that during the setting process, the covered Setzweg is detected continuously and that in certain path intervals of the distance traveled Setzweges or at fixed waypoints the force exerted and the traveled Setzweg measured, determined differences of the force and the Setzweges to each last past measurement and a quotient of the difference of the applied forces and the difference of the traveled Setzwege determined and compared with a reference value.
  • the intervals / intervals in which the difference quotients are formed are based in this case on the distance traveled.
  • the points can be equidistant or they can be at the beginning of the
  • the force and the set path at intervals of the set path of at most 0.1 mm or in time intervals that are less than or equal to 2 milliseconds are detected.
  • the force exerted as well as the distance traveled measured determines differences in the force and the setting path to the last previous measurement and a Quotient of the difference of the applied forces and the difference of the distances traveled is determined and compared with a reference value. It can be assumed that a setting tool performs the setting process continuously by increasing the setting force and covering the setting path, in which case the difference quotients can be formed and compared with the reference value in time-constant or condensing intervals of the setting process.
  • a force transmission element in particular a
  • Clamping device a stamp or a screw with the setting side of an auxiliary joining part, in particular rivet and connected thereto by means of
  • Force transmission element is exerted a force on the auxiliary joining part, which is sufficient to transform the auxiliary joining part.
  • Threaded pin exerted the necessary force on the rivet and after the
  • the grub screw can be unscrewed again.
  • Other embodiments provide that with the end of the rivet on which the setting head is formed, a pin is permanently connected, which is separated after the application of the force. It may, as mentioned above by way of example, also be provided that after a deformation of the
  • Auxiliary joining parts in particular rivet the pin or the screw from the setting side of the auxiliary joining part, in particular rivet residue-free and non-destructive is removed, in particular by unscrewing.
  • Part surface receives, in particular during clinching / clinching, and thereon by means of the force transmission element, a force on the
  • Component material is applied, which is sufficient to a connecting element in the components, in particular in the form of a positive
  • the invention relates not only to a method of the type described above, but also to a setting device for producing a joining compound of at least two components, in which a auxiliary joining part and / or a by a continuous force of a setting device
  • Component material of one or more of the components is formed, with a first detection device which detects the setting path during the setting process and with a second detection device which detects the applied force during the setting process, characterized in that a
  • Processing device is provided which is adapted to
  • a processing device is provided which is adapted to determine differences of successively detected values of the applied force F and differences of the respective covered set paths S, to determine a difference quotient Delta F / Delta S from these differences and to compare this with at least one stored reference value.
  • the processing device can be designed, for example, as a microcontroller, in which measured values of the setting path and the setting force are processed. Differences to past measurements can also be determined by the microcontroller and in the form of a
  • Microcontroller provided a memory device in which one or more reference values are stored, wherein for a fixed rivet or a certain type of reshaping joint connection
  • the processing device is set up to abort the setting process in the region of the increase of the process force as soon as the difference quotient reaches or exceeds a predetermined reference value.
  • a device for connecting the setting tool is provided with a part of a Hilfs alterngeteils in the form of a blind rivet nut or a locking ring bolt, in particular, the setting tool is detachable from the part of the auxiliary joining part again.
  • This device can be realized, for example, by a setting tool with its own screw drive, which connects a screw with the blind rivet nut and this connection by unscrewing after the setting process again dissolves.
  • a setting tool in which the device for connecting the setting tool with a part of the auxiliary joining part, in particular locking ring bolt, a clamping device which engages the locking ring bolt during the setting process until complete deformation of the locking ring, in particular the Setting device of the part of the auxiliary joining part is releasable again.
  • a setting device in which a device for the contact of the setting device with a part of an auxiliary joining part in the form of a
  • a setting device may be provided, in which a device for the contact of the setting device with a part of a component for Clinching / clinching is provided, in particular, the setting tool from the part of the component is releasable again.
  • FIG. 2 shows the blind rivet nut of FIG. 1 after the setting process
  • FIG. 3 schematic elements of a setting device
  • Fig. 5 shows schematically a representation of a clinch process, as well
  • FIGS. Figures 6 and 7 show in schematic form the process of the semi-hollow punch rivet.
  • Fig. 1 shows a blind rivet nut as an example of a technically joined auxiliary joining part 1, which is joined by way of example to a sheet 2 or by means of a layering of a plurality of sheets.
  • an opening 3 is provided in the sheet 2, in which the blind rivet nut 1 is inserted.
  • the blind rivet nut 1 has a setting head 4 in the form of a radially outwardly projecting flange and in the region of the closing head, which is formed in the blind rivet nut shown only in the course of the setting process, an internal thread. 5
  • a set screw 11 (see Fig. 3) is inserted and screwed into the thread 5 and pulled in the direction of the arrow 6 to initiate the setting process.
  • Fig. 2 shows the deformed state of the rivet 1 after the setting end 7 of the rivet has been pulled up in the direction of the arrow 6.
  • the shaft 8 of the rivet has a longitudinal section with the thread 5, as well as a smooth, usually thinner walled portion 9 (forming area), which buckles in the course of the pulling movement, so that the rivet 1 shortens in the direction of the pulling movement 6.
  • the region 9 of the shank 8 forms into a bead 9a projecting radially outward, which bears against the metal sheet 2.
  • the rivet 1 is thus fixed to the flange 4 on the one hand and the bead 9 a on the other hand at the edge of the opening 3 in the sheet or the sheet stack 2.
  • each setting tool for the forming-technical joining has a device in order to impart a translational movement to the auxiliary joining part and / or the component material.
  • These can be tensile or compressive forces. In this case, both the transmitted force and the traveled translational path of the device are detected separately.
  • FIG. 3 shows by way of example schematically parts of a setting tool 10 for a
  • a drive element 13 is shown in the form of a drive pin, which engages in the threaded pin 11 at its upper end for transmitting a rotational movement.
  • the drive element 13 is thus in both
  • the threaded pin 11 is screwed by the drive of the drive element 13 in the thread 5.
  • the grub screw 11 passes through the longitudinal opening of the rivet 1.
  • On the setting tool is a
  • Platen 15 is provided, which is placed on the rivet 1 or on the material to be riveted 2.
  • This support plate 15 serves as an abutment for the setting tool during the setting process, if by means of a draw tube 16, the threaded pin 11 is pulled at its head 17 in the direction of arrow 18 to compress the rivet 1.
  • a traction drive is provided which in the figure
  • the draw tube has at its end facing the rivet on an inner flange 16 a, which rests against the head 17 of the threaded pin 11. The tensile force, in the direction of arrow 18 on the draft tube and on the
  • Grub screw 11 and thus acts on the closing end of the rivet is detected by means of a force sensor 19.
  • the path traveled by the draw tube 16 during the setting process is detected continuously by the displacement sensor 20. The information about the
  • Processing means 21 as well as by the sensor 20, the value of each currently traversed path of the threaded pin 11.
  • force intervals or Setzwegintervallen the processing means 21 forms a difference of the respectively detected setting force to the set in the previous measurement setting force and a difference of Recorded Setzweges to the Setzweg recorded in the previous measurement and forms of these differences one
  • Fig. 4 shows a diagram in which on the horizontal axis of the covered Setzweg S and on the vertical axis, the setting force F is shown.
  • the corresponding process curve 22 shows the course of the setting force F over the progressive setting path S. It turns out that initially at a
  • the curve 23 shows for each point of the set S the slope of
  • Another embodiment relates to two sheets to be joined and a Hilfs alterngeteil in the form of a locking ring bolt without Abrissteil consisting of bolts and locking ring.
  • the locking ring bolt is caught by a clamping device and pulled into the bolt longitudinal axis.
  • the mouthpiece of the setting tool is supported on the upper side of the closing ring.
  • the components to be joined are pressed together, with increasing setting force, the mouthpiece of the setting tool begins with the deformation of the locking ring by sliding over the outside of the locking ring.
  • the locking ring is reshaped so that the material of the locking ring has been formed in the groove geometry of the bolt and a positive connection has been created.
  • the Setzweg is the path that attached to a mandrel
  • Fig. 5 shows two joined sheets 24, 25, by means of clinching, also
  • Auxiliary joining part are joined together. This is done by applying pressure by means of a press ram 26, which is pressed in the direction of the arrow 27 against the sheets, so that they deform into the opposite and provided with a pot-shaped recess 28 die 29 into it.
  • the die 29 may have movable parts 29 a, 29 b passing through
  • Fig. 6 shows two sheets to be joined 31, 32 and an auxiliary joining part in the form of a Halbhohlstanzniets 33 and arranged under the sheets
  • the lower sheet 32 is not pierced by the rivet 33.
  • the path of travel is the path traveled by the punch 37 during the setting process.
  • the setting force is the force exerted by the punch.
  • Another embodiment relates to two sheets to be joined as well as an auxiliary joining part in the form of a solid rivet and a die arranged under the sheets, consisting of cutting and stamping ring.
  • Component material forms a stamping ring.
  • the path of settlement is the path that the stamp travels during the setting process.
  • the setting force is the force exerted by the punch.

Abstract

La présente invention concerne un procédé de production d'un raccordement assemblé par technique de formage d'au moins deux composants (2, 24, 25, 31, 32) ou d'un composant avec un élément d'assemblage auxiliaire (1, 33) ou un élément fonctionnel, selon lequel, sous l'action d'une force continue d'un appareil de pose (10, 26, 29, 34, 37), un élément d'assemblage auxiliaire (1, 33) et/ou un matériau de composant d'un ou d'une pluralité de composants (2, 24, 25, 31, 32) sont formés, lors du processus de pose, la force exercée ainsi que le trajet de pose étant détectés. Le procédé est caractérisé en ce que des quotients de différence répétés sont formés à partir d'une différence de forces (F) consécutivement exercées et d'une différence de trajets de pose (S) effectués et en ce que lesdits quotients de différence sont comparés à au moins une valeur de référence et en ce que le processus de pose est arrêté dans une zone d'augmentation de la force de processus, dès que le quotient de différence atteint ou est inférieur à une valeur de référence prédéfinie.
PCT/EP2018/057988 2017-03-30 2018-03-28 Procédé de pose d'un raccordement assemblé par technique de formage WO2018178186A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP18714759.0A EP3600715A1 (fr) 2017-03-30 2018-03-28 Procédé de pose d'un raccordement assemblé par technique de formage

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017205464.6A DE102017205464A1 (de) 2017-03-30 2017-03-30 Verfahren zum Setzen einer umformtechnisch gefügten Verbindung
DEDE102017205464.6 2017-03-30

Publications (1)

Publication Number Publication Date
WO2018178186A1 true WO2018178186A1 (fr) 2018-10-04

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PCT/EP2018/057988 WO2018178186A1 (fr) 2017-03-30 2018-03-28 Procédé de pose d'un raccordement assemblé par technique de formage

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EP (1) EP3600715A1 (fr)
DE (1) DE102017205464A1 (fr)
WO (1) WO2018178186A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4056296A1 (fr) 2021-03-12 2022-09-14 Lisi Aerospace Méthode pour contrôler la qualité de l'installation d'une fixation aveugle
EP4140615A1 (fr) * 2021-08-24 2023-03-01 Airbus Operations GmbH Procédé d'installation d'un élément de fixation aveugle et utilisation de passage longitudinal de manchon d'un élément de fixation aveugle

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020129691A1 (de) 2020-11-11 2022-05-12 Bayerische Motoren Werke Aktiengesellschaft Verfahren und Vorrichtung zum Herstellen einer Schraubverbindung zwischen einem Blindnietgewindeelement und einem Gegengewindeelement

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3306827A1 (de) 1983-02-26 1984-08-30 Gesipa Blindniettechnik Gmbh, 6000 Frankfurt Pneumatisch-hydraulisches setzgeraet fuer blindnietmuttern
DE602004000246T2 (de) 2003-03-24 2006-09-07 Bollhoff Otalu S.A. Verfahren zur Herstellung einer Krimpmutter und durch dieses Verfahren hergestellte Krimpmutter
DE102007059422A1 (de) 2007-12-10 2009-06-18 Bayerische Motoren Werke Aktiengesellschaft Verfahren zum Setzen von Nietelementen durch ein von einem Elektromotor angetriebenes portables Nietgerät sowie ein Nietgerät
DE102013112363A1 (de) 2013-11-11 2015-05-13 Hs-Technik Gmbh Verfahren und Nietgerät zum Setzen von Nietelementen
DE202016103269U1 (de) 2016-06-21 2016-08-02 Heiko Schmidt Handsetzgerät zum Setzen von Blindnietelementen

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012025047B4 (de) * 2012-12-20 2023-12-07 Newfrey Llc Überwachungsverfahren für einen Fügeprozess und Fügevorrichtung
DE102015000315A1 (de) * 2015-01-09 2016-07-14 Titgemeyer Holding Gmbh & Co. Kg Verfahren und Erstellung von Schließringbolzenverbindungen sowie Schließringbolzen
DE102015001922A1 (de) * 2015-02-13 2016-08-18 Audi Ag Verfahren zum Ermitteln einer Qualität eines Fügevorgangs und Vorrichtung zum Ermitteln einer Qualität eines Fügevorgangs

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3306827A1 (de) 1983-02-26 1984-08-30 Gesipa Blindniettechnik Gmbh, 6000 Frankfurt Pneumatisch-hydraulisches setzgeraet fuer blindnietmuttern
DE602004000246T2 (de) 2003-03-24 2006-09-07 Bollhoff Otalu S.A. Verfahren zur Herstellung einer Krimpmutter und durch dieses Verfahren hergestellte Krimpmutter
DE102007059422A1 (de) 2007-12-10 2009-06-18 Bayerische Motoren Werke Aktiengesellschaft Verfahren zum Setzen von Nietelementen durch ein von einem Elektromotor angetriebenes portables Nietgerät sowie ein Nietgerät
DE102013112363A1 (de) 2013-11-11 2015-05-13 Hs-Technik Gmbh Verfahren und Nietgerät zum Setzen von Nietelementen
DE202016103269U1 (de) 2016-06-21 2016-08-02 Heiko Schmidt Handsetzgerät zum Setzen von Blindnietelementen

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4056296A1 (fr) 2021-03-12 2022-09-14 Lisi Aerospace Méthode pour contrôler la qualité de l'installation d'une fixation aveugle
FR3120552A1 (fr) 2021-03-12 2022-09-16 Lisi Aerospace Methode pour controler la qualite de l’installation d’une fixation aveugle
US11826816B2 (en) 2021-03-12 2023-11-28 Lisi Aerospace Method for controlling the quality of a blind fastener installation
EP4140615A1 (fr) * 2021-08-24 2023-03-01 Airbus Operations GmbH Procédé d'installation d'un élément de fixation aveugle et utilisation de passage longitudinal de manchon d'un élément de fixation aveugle

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Publication number Publication date
EP3600715A1 (fr) 2020-02-05
DE102017205464A1 (de) 2018-10-04

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