EP2985093B1 - Appareil de pose de rivets aveugles et procédé de pose d'un rivet aveugle - Google Patents

Appareil de pose de rivets aveugles et procédé de pose d'un rivet aveugle Download PDF

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Publication number
EP2985093B1
EP2985093B1 EP14181124.0A EP14181124A EP2985093B1 EP 2985093 B1 EP2985093 B1 EP 2985093B1 EP 14181124 A EP14181124 A EP 14181124A EP 2985093 B1 EP2985093 B1 EP 2985093B1
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EP
European Patent Office
Prior art keywords
mandrel
control device
rivet
pulling
motor
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.)
Active
Application number
EP14181124.0A
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German (de)
English (en)
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EP2985093A1 (fr
Inventor
Richard Dr. Gärtner
Lothar Wille
Thomas Bamberger
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.)
Gesipa Blindniettechnik GmbH
Original Assignee
Gesipa Blindniettechnik GmbH
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 Gesipa Blindniettechnik GmbH filed Critical Gesipa Blindniettechnik GmbH
Priority to EP14181124.0A priority Critical patent/EP2985093B1/fr
Priority to CN201510354594.0A priority patent/CN105363988B/zh
Priority to US14/803,742 priority patent/US10118215B2/en
Publication of EP2985093A1 publication Critical patent/EP2985093A1/fr
Application granted granted Critical
Publication of EP2985093B1 publication Critical patent/EP2985093B1/fr
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    • 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
    • B21J15/02—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
    • B21J15/105—Portable riveters
    • 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
    • B21J15/16—Drives for riveting machines; Transmission means therefor
    • B21J15/26—Drives for riveting machines; Transmission means therefor operated by rotary drive, e.g. by electric motor
    • 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

Definitions

  • the invention relates to a Blindnietsetzêt with the features of the preamble of claim 1.
  • the invention relates to a method for setting a blind rivet with the features of the preamble of claim 7.
  • Another Blindnietsetz Meeting is for example off DE 41 26 602 C2 known.
  • the electric motor is formed here reversible.
  • EP 0 572 819 A1 shows a method for determining the pull-off force of the mandrel of a blind rivet and an associated Blindnietsetzêt, wherein in a compressed air line, a pressure gauge is arranged, with which the pressure required for the operation of the tension mechanism is measured.
  • EP 0 953 390 A2 shows another Nietsetz réelle with an electrically operated drive motor, which has a motor shaft for driving a gear for translating the rotational movement of the motor shaft in a linear motion constant translation riveting the Nietsetz réelles.
  • a flywheel is provided, which is detachably connected via a coupling with the motor shaft.
  • the drive device pulls a rivet mandrel in a pulling direction. From a predetermined tensile force or a predetermined path of the traction device breaks off the rivet mandrel. The engine can now be stopped. In this case, either a determination of the maximum tensile force can take place or it can simply be done switching off the drive motor after a predetermined path of the pulling device.
  • the mandrel of the blind rivet is inserted into the pull mechanism of the blind rivet setting tool.
  • the pulling mechanism is for this purpose in a Nietworkposition in which it is open so far that the rivet mandrel can be introduced.
  • the operating device is designed as a pressure switch.
  • the setting process is then started by pressing the pressure switch.
  • the pulling mechanism is moved out of the rivet receiving position in the pulling direction.
  • the shank of the blind rivet is deformed on the "blind" side of the joining material and forms a closing head there.
  • the pull mechanism is moved further, the mandrel eventually breaks.
  • the operator releases the pressure switch.
  • the engine stops and returns the pulling mechanism to the rivet receiving position. Depending on the reaction speed of the operator, a more or less long follow-up time arises after the mandrel break or break.
  • the operator has to set a large number of blind rivets in the same or similar manner.
  • a habituation effect sets in after a relatively short time.
  • the operator no longer waits for the audible break of the breaker, but releases the pressure switch in time for feeling.
  • it often happens that the pressure switch is released too early and the mandrel is not yet demolished. This has the consequence that the rivet setting process must be repeated after the return. This costs time and energy, which is disadvantageous especially in battery-operated Blindnietsetzettin.
  • the invention is based on the object to optimize the setting process of a blind rivet in terms of speed and energy consumption.
  • the controller brakes the engine with energy recovery. This is particularly advantageous in battery-operated Blindnietsetzakun because you not only saves time, but the existing in the traction mechanism and engine kinetic energy can be converted back into electrical energy.
  • control device reverses the motor when the Dornabrisssignals occurs and the pull mechanism moves counter to the pulling direction.
  • the pulling mechanism is again moved in the direction of the rivet receiving position, so that also for this movement practically no time is lost.
  • the control device moves the pulling mechanism into the rivet receiving position.
  • the pulling mechanism In the rivet receiving position, the pulling mechanism is opened and the torn-off mandrel may fall out.
  • the movement into the rivet receiving position begins immediately after the mandrel has been torn off, basically the shortest possible cycle time for the blind rivet setting process is achieved.
  • the control means moves the pulling mechanism to a position outside the rivet receiving position.
  • the pulling mechanism When the pulling mechanism is moved to the rivet receiving position, it is opened so that the pulling mandrel may fall out of the blind rivet setting device.
  • the falling mandrel may lead to problems in terms of safety at work, risk of short circuit in electrical assemblies, loose rivet mandrels in the component, etc.
  • you stop the pulling mechanism before it reaches the rivet receiving position then the mandrel will remain in the riveting tool. The Blindnietsetz réelle can then be moved to a position in which a controlled disposal of the mandrel is possible.
  • the blind rivet setting tool can be directed obliquely upward and the reel mechanism moved into the rivet receiving position by re-operation of the operating device so that the mandrel may fall back into the mandrel receptacle.
  • the demolition detection device comprises a current monitoring device which continuously determines a current supplied to the motor and generates the Dornabrisssignal when the current after reaching a
  • Maximum value decreases at least by a predetermined percentage of the maximum value.
  • the predetermined percentage is 30%. You can also choose the predetermined percentage larger, such as 40%, 50%, 60%, 70% or 80%. This reliable detection of a mandrel breakage is possible.
  • the operating device sends at least two different actuation signals to the control device as a function of different types of actuation.
  • the operator may, for example, determined whether the pulling mechanism should be moved to the mandrel breakage to the Nietworkposition or whether it should be stopped shortly before the Nietworkposition, ie immediately before the impact of the chuck jaws of the pulling mechanism on the mouthpiece to a falling out of the mandrel to prevent. This is done to shorten the subsequent process time.
  • the different types of actuation for example, be designed so that in a first type of actuation the operating device is briefly actuated, for example, a pressure switch is pressed briefly and in a second actuation mode, the operating device is permanently actuated, so a pressure switch is kept pressed permanently.
  • the control device controls the motor so that the pulling mechanism is no longer moved.
  • the pulling mechanism is thus only moved to Dorn Abrasion, so that unnecessary movements are avoided. This saves energy and time.
  • the Dornabrisssignals occurrence slows down the engine with energy recovery. Since the Dornabrisssignal reliably indicating the tearing of the mandrel, without the intervention of the operator is required, you can immediately after the mandrel break the stored energy in the engine and in the traction mechanism back into electrical energy, which is especially in battery or battery operated Blind rivet is advantageous.
  • the direction of movement of the pulling mechanism is changed. This saves time again.
  • the pulling mechanism is again moved in the direction of the rivet receiving position.
  • the pulling mechanism is moved into the rivet receiving position.
  • the mandrel can fall out of the pulling mechanism or be taken out.
  • the pulling mechanism is moved to a position immediately in front of the rivet receiving position. This prevents the mandrel from falling out of the blind riveting tool, which, as described above, can lead to problems.
  • the current consumption is a parameter that detects the torque generated by the engine. This torque is in turn a measure of the force with which the pulling mechanism acts on the mandrel. When the mandrel breaks off, then this force drops virtually suddenly to zero, which is due to a corresponding decrease in the current absorbed by the motor, for. B. at idle level, can easily recognize.
  • the operating device is operable on at least two different types of actuation and sends in each actuation another signal to the control device.
  • the controller reverses the motor and causes the pulling mechanism to be moved to the rivet receiving position.
  • the operator permanently actuates the operating device, then this is a sign that the control device reverses the motor when the Dornabrisssignals occurs, but the pulling mechanism does not move into the rivet receiving position, but before the rivet receiving position stops, so that the mandrel can not fall out of the blind rivet set. The return then takes place, for example, after releasing the switch.
  • a Blindnietsetzêt 1 has a housing not shown in detail, in which a pulling mechanism is arranged.
  • the pulling mechanism has a jaw assembly 2 which is connected to a hollow threaded spindle 3.
  • the threaded spindle 3 is in engagement with a transmission device 4.
  • the transmission device 4 is connected via a transmission element 5 with a reversible electric motor 6.
  • the jaw assembly has a plurality of jaws 7, 8, which are closed in a setting operation of a blind rivet, not shown, so are pressed against each other with a certain force to seize a mandrel of the blind rivet and with a tensile force apply.
  • This closed state of the jaw assembly 2 is shown by solid lines.
  • the jaw assembly 2 can also be moved to a rivet receiving position shown in dashed lines, in which the jaws 7, 8 are opened and form a receiving opening 9 for the rivet mandrel.
  • the jaw assembly 2 can be moved in a pulling direction 10 shown by an arrow when the motor 6 acts on the jaw assembly 2 via the gear mechanism 4 and the threaded spindle 3.
  • the motor 6 is connected to a control device 11.
  • the control device 11 receives electrical energy from a battery 12, which may also be designed as a rechargeable battery or accumulator.
  • the control device 11 is also connected to an operating device 13, which has, for example, a pushbutton or pressure switch 14.
  • the control device 11 supplies the electric motor 6 with energy via a supply line 15 in the form of electrical current.
  • a current sensor 16 is arranged, which forms part of a demolition detection device 17.
  • the current sensor 16 and the demolition detection device 17 are shown here as discrete elements. However, they can also be part of the control device 11.
  • Fig. 2 shows in a schematic form the course of the force F over the path s, travels the jaw assembly 2 in a setting operation of a blind rivet. Shown is a function 18. From the function 18 it follows that the force initially increases when setting a blind rivet. In many cases, this results in an intermediate maximum 19 when the mandrel engages in the rivet. After that, the power continues to increase, which points to it is attributable to the mandrel forming the closing head on the rivet sleeve. The force then continues to increase to a maximum of 20 and then collapses abruptly when the mandrel breaks.
  • the demolition detector 17 now continuously monitors the current with the aid of the current sensor 16 (or otherwise) and detects the maximum 20 not only by detecting a maximum, but by checking that the current reaches the maximum value 20 decreases by a predetermined percentage of the maximum value. For example, this predetermined percentage may be 50%.
  • the waste must, for example, take place in a section of the path s which is less than 1 mm, preferably less than 0.5 mm. This excludes with great certainty that the demolition recognition device 17 erroneously identifies the intermediate maximum 19 as maximum 20.
  • the force whose course is 18 in Fig. 2 is shown is generated via the transmission device 4 by a torque of the motor 6.
  • the current consumption of the motor 6 correlates sufficiently with the torque, ie when the torque increases, then the current consumption of the motor 6 increases. This can be determined with sufficient accuracy, the maximum value 20 of the force F by a corresponding maximum of the absorbed current. In the same way you can see the in Fig. 2 recorded drop in power to a decrease or decrease in power consumption.
  • the detection of the mandrel breakaway reports the demolition detection device 17 directly to the control device 11.
  • the control device 11 terminates the drive of the clamping jaw arrangement 2 in the pulling direction.
  • the control device 11 brakes the motor 6 with energy recovery.
  • the energy gained is fed back into the battery 12 back. This has two advantages. On the one hand, there is energy recovered. On the other hand is lost by the braking of the motor 6 less time.
  • the control device 11 reverses the motor 6, so that the clamping jaw arrangement 2 is moved counter to the pulling direction 10.
  • the engine 6 may simply stop.
  • This movement can extend as far as the rivet receiving position shown in dashed lines, in which the clamping jaws 7, 8 are moved apart, so that the torn-off rivet mandrel is released. This is then the shortest possible cycle time because the jaw assembly 2 are available again immediately after the termination of the setting process in a position in which they can take a new rivet mandrel.
  • the jaw assembly 2 is not moved to the rivet receiving position, but to the position shown in solid lines outside the rivet receiving position.
  • This position is for example set so that the jaw assembly 2 only has to travel a short distance to open the jaws 7, 8.
  • the different end positions of the jaw assembly 2 can now be selected by operating the pressure switch 14.
  • the control device 11 starts the setting process and moves by means of the motor 6, the jaw assembly 2 in the pulling direction until the demolition of the mandrel, which is detected by reaching the maximum 20. Thereafter, the jaw assembly 2 is moved back against the pulling direction 10 back into the Nietanalysisposition and the jaws 7, 8 are opened.
  • the jaw assembly 2 is moved to the demolition or breakage of the mandrel and moved back into the position shortly before Nietsuitposition.
  • the jaw assembly 2 is not moved back to the rivet receiving position until the operator releases the pressure switch 14.
  • the operator himself can determine when the mandrel is to be disposed of.
  • the current sensor 16 as explained above, also be part of the control device 11. It can also be arranged between the control device 11 and the battery 12.

Claims (12)

  1. Appareil de pose de rivets aveugles (1) avec un boîtier, un mécanisme de traction (2,3) dans le boîtier, un moteur électrique (6), avec lequel le mécanisme de traction (2,3) peut être déplacé d'une position de logement de rivet dans une direction de traction (10), un système de commande (11) pour commander le moteur (6) et un système de manoeuvre (13), qui est relié au système de commande (11), le système de commande (11) comportant un système de détection d'arrachage (17), qui comporte un dispositif de contrôle du courant (16), qui détermine en continu un courant fourni au moteur (6) et produit un signal d'arrachage de broche en cas d'arrachage d'une broche de traction et le système de commande mettant fin à l'entraînement du mécanisme de traction (2,3) dans la direction de traction (10) à l'apparition du signal d'arrachage de broche, caractérisé en ce que le système de détection d'arrachage (17) produit le signal d'arrachage de broche, lorsque le courant tombe après atteinte d'une valeur maximale (20) à l'intérieur d'une distance de 1 mm d'au moins un pourcentage prédéterminé de la valeur maximale, le pourcentage prédéterminé étant de 30 %.
  2. Appareil de pose de rivets aveugles selon la revendication 1, caractérisé en ce que le système de commande (11) ralentit le moteur (6) en récupération d'énergie.
  3. Appareil de pose de rivets aveugles selon la revendication 2, caractérisé en ce que le système de commande (11) inverse le moteur (6) à l'apparition du signal d'arrachage de broche et déplace le mécanisme de traction (2,3) contrairement à la direction de traction (10) .
  4. Appareil de pose de rivets aveugles selon la revendication 3, caractérisé en ce que le système de commande (11) déplace le mécanisme de traction (2,3) jusque dans la position de logement de rivet.
  5. Appareil de pose de rivets aveugles selon la revendication 3, caractérisé en ce que le système de commande (11) déplace le mécanisme de traction (2,3) jusque dans une position en dehors de la position de logement de rivet, de préférence dans une position directement avant que le mécanisme de traction (2,3) ne s'ouvre.
  6. Appareil de pose de rivets aveugles selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le dispositif d'actionnement (13) émet au moins deux signaux de manipulation différents au système de commande (11) en fonction des différents types d'actionnement.
  7. Procédé de pose d'un rivet aveugle pour lequel un moteur électrique (6) commandé par un système de commande (11) déplace lors de l'actionnement d'un dispositif de manoeuvre (13) un mécanisme de traction (2,3) d'une position de logement de rivet dans une direction de traction (10), pour lequel on produit un signal d'arrachage de broche automatiquement en cas d'arrachage d'une broche de traction, sur la base duquel le système de commande (11) met fin à l'entraînement du mécanisme de traction (2,3) dans la direction de traction (10), la consommation de courant du moteur (6) pour produire le signal d'arrachage de broche étant contrôlé, caractérisé en ce que l'on produit le signal d'arrachage de broche, lorsque le courant tombe après atteinte d'une valeur maximale (20) à l'intérieur d'une distance de 1 mm d'au moins un pourcentage prédéterminé de la valeur maximale, le pourcentage prédéterminé étant de 30 %.
  8. Procédé selon la revendication 7, caractérisé en ce que l'on ralentit le moteur (6) en récupération d'énergie à l'apparition du signal d'arrachage de broche.
  9. Procédé selon la revendication 7 ou 8, caractérisé en ce que l'on modifie le sens de déplacement du mécanisme de traction (2,3) à l'apparition du signal d'arrachage de broche.
  10. Procédé selon la revendication 9, caractérisé en ce que l'on déplace le mécanisme de traction (2,3) jusque dans la position de logement de brevet.
  11. Procédé selon la revendication 9, caractérisé en ce que l'on déplace le mécanisme de traction (2,3) dans une position en dehors de la position de logement de brevet, de préférence dans une position directement avant que le mécanisme de traction (2,3) ne s'ouvre.
  12. Procédé selon l'une quelconque des revendications 7 à 11, caractérisé en que le dispositif d'actionnement (13) peut être actionné d'au moins deux façons d'actionnement différentes et émet dans chaque type d'actionnement un autre signal au système de commande (11) .
EP14181124.0A 2014-08-15 2014-08-15 Appareil de pose de rivets aveugles et procédé de pose d'un rivet aveugle Active EP2985093B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP14181124.0A EP2985093B1 (fr) 2014-08-15 2014-08-15 Appareil de pose de rivets aveugles et procédé de pose d'un rivet aveugle
CN201510354594.0A CN105363988B (zh) 2014-08-15 2015-06-24 空心铆钉安装器和用于安装空心铆钉的方法
US14/803,742 US10118215B2 (en) 2014-08-15 2015-07-20 Blind rivet setting device and method for setting a blind rivet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14181124.0A EP2985093B1 (fr) 2014-08-15 2014-08-15 Appareil de pose de rivets aveugles et procédé de pose d'un rivet aveugle

Publications (2)

Publication Number Publication Date
EP2985093A1 EP2985093A1 (fr) 2016-02-17
EP2985093B1 true EP2985093B1 (fr) 2019-05-29

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EP14181124.0A Active EP2985093B1 (fr) 2014-08-15 2014-08-15 Appareil de pose de rivets aveugles et procédé de pose d'un rivet aveugle

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US (1) US10118215B2 (fr)
EP (1) EP2985093B1 (fr)
CN (1) CN105363988B (fr)

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Publication number Priority date Publication date Assignee Title
EP3563946B1 (fr) * 2016-12-28 2021-11-03 Makita Corporation Outil de fixation
US10483901B2 (en) 2017-07-10 2019-11-19 Newfrey Llc System and method for installation and verification of fasteners
TWI641434B (zh) * 2017-12-07 2018-11-21 車王電子股份有限公司 Pulling machine control method
US11654475B2 (en) 2020-06-03 2023-05-23 Milwaukee Electric Tool Corporation Rivet setting tool
EP3988227B1 (fr) * 2020-10-22 2023-04-05 GESIPA Blindniettechnik GmbH Dispositif de pose de rivet aveugle

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DE102005054048A1 (de) * 2005-11-12 2007-05-16 Bayerische Motoren Werke Ag Verfahren zum Setzen von Blindnieten mittels eines von einem Elektromotor angetriebenen Nietgeräts
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
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DE102005054048A1 (de) * 2005-11-12 2007-05-16 Bayerische Motoren Werke Ag Verfahren zum Setzen von Blindnieten mittels eines von einem Elektromotor angetriebenen Nietgeräts
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

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EP2985093A1 (fr) 2016-02-17
US20160045950A1 (en) 2016-02-18
US10118215B2 (en) 2018-11-06
CN105363988A (zh) 2016-03-02
CN105363988B (zh) 2018-11-16

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