EP2093024A1 - Dispositif électro-hydraulique avec contrôle électronique pour déformer des écrous à river - Google Patents

Dispositif électro-hydraulique avec contrôle électronique pour déformer des écrous à river Download PDF

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Publication number
EP2093024A1
EP2093024A1 EP08101965A EP08101965A EP2093024A1 EP 2093024 A1 EP2093024 A1 EP 2093024A1 EP 08101965 A EP08101965 A EP 08101965A EP 08101965 A EP08101965 A EP 08101965A EP 2093024 A1 EP2093024 A1 EP 2093024A1
Authority
EP
European Patent Office
Prior art keywords
micro
motor
rod
rivet
switch
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
EP08101965A
Other languages
German (de)
English (en)
Other versions
EP2093024B1 (fr
Inventor
Giuseppe Preti
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.)
OBER SpA
Original Assignee
OBER SpA
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Publication date
Application filed by OBER SpA filed Critical OBER SpA
Publication of EP2093024A1 publication Critical patent/EP2093024A1/fr
Application granted granted Critical
Publication of EP2093024B1 publication Critical patent/EP2093024B1/fr
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Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21JFORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00Riveting
    • B21J15/10Riveting machines
    • B21J15/16Drives for riveting machines; Transmission means therefor
    • B21J15/20Drives for riveting machines; Transmission means therefor operated by hydraulic or liquid pressure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21JFORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00Riveting
    • B21J15/10Riveting machines
    • B21J15/16Drives for riveting machines; Transmission means therefor
    • B21J15/26Drives for riveting machines; Transmission means therefor operated by rotary drive, e.g. by electric motor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING
    • B25B27/00Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/0007Tools for fixing internally screw-threaded tubular fasteners
    • B25B27/0014Tools for fixing internally screw-threaded tubular fasteners motor-driven
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/53Means to assemble or disassemble
    • Y10T29/53709Overedge assembling means
    • Y10T29/53717Annular work
    • Y10T29/53726Annular work with second workpiece inside annular work one workpiece moved to shape the other
    • Y10T29/5373Annular work with second workpiece inside annular work one workpiece moved to shape the other comprising driver for snap-off-mandrel fastener; e.g., Pop [TM] riveter
    • Y10T29/53739Pneumatic- or fluid-actuated tool
    • Y10T29/53743Liquid

Definitions

  • the invention relates to the technical sector of riveting pistols, with special reference to servo-assisted pistols, used for rivets having a cylindrical shape, a partially-threaded axial hole, an abutment collar at a head thereof and a specially-weakened portion at which the plastic deformation will occur.
  • the rivets are destined to join two walls stably, for example in place of spot-welding, or for constituting a threaded anchoring bush of an adequate sturdiness, for structures made of too-soft or too-thin materials for fashioning sufficiently-resistant threads.
  • the above-described rivets can be of considerable dimensions, and for their application it is necessary to avail of the necessary equipment, which must be able to exert thereon a high compression force.
  • a known-type riveting pistol constructed by the same applicant in accordance with an Italian patent application for industrial invention no. BO2007A000311 , comprises a body and a grip wherein are housed:
  • the pistol 100 further comprises an emergency button control, not illustrated in detail but preferably arranged with a position and/or conformation protected from accidental activation, associated to the electric circuit 6 and destined to activate the first micro-switch 1 such that the rod 2 rotates to the left, in a way which will be described herein below.
  • an emergency button control not illustrated in detail but preferably arranged with a position and/or conformation protected from accidental activation, associated to the electric circuit 6 and destined to activate the first micro-switch 1 such that the rod 2 rotates to the left, in a way which will be described herein below.
  • the first transmission organs 11 are constituted, for example, by a plurality of gears also functioning as speed reducer; preferably these organs 11 cause the micro-motor 1 and the rod 2 to rotate in a same direction ( figures 2 and 3 ).
  • the second transmission organs 52 are constituted, for example, by an epicyclical gear reducer.
  • the second micro-switch 62 is activated and the control unit 60 starts up the automatic operating cycle of the pistol 100 ( figure 6 ).
  • the second micro-motor 5 is then activated in the suitable direction, in order to determine the outward run of the piston 50 in the cylinder 51, with a consequent increase in the pressure of the hydraulic fluid F into the chamber 41 of the cursor 40 ( figure 7 ).
  • the piston 50 continues to rise, while the pressurised fluid F overcomes the resistance of the contrast spring 42 and pushes the cursor 40 to retreat, together with the associated threaded rod 2.
  • the translation continues, causing a progressive compression of the rivet 3 which deforms towards the outside, in the weakened portion, to define an annular edge 3C adhering to the surface of the wall P opposite the surface on which the collar 3B is resting, thus determining a blocking of the rivet 3 ( figure 8 ).
  • the increase in the pressure in the hydraulic system 4 increases the resistance to rising of the piston 50, which leads to a proportional increase in the absorption of power on the part of the second micro-motor 5.
  • the value of this absorption is constantly monitored by the control unit 60, since the force exerted on the rod 2 to deform the rivet 3 is calculated in relation thereto, by means of suitable parameters.
  • the maximum peak of absorption the second micro-switch 5 has to reach is calculated and the relative datum is stored in the control unit 60.
  • the control unit 60 inverts the rotation of the second micro-motor 5, with consequent inversion of the movement of the piston 50 ( figure 9 ).
  • the above leads to a sharp drop in hydraulic fluid pressure F, with a consequent interruption of the retraction of the cursor-rod group and thus of the stressed on the rivet 3.
  • the contrast spring 42 While the piston 50 proceeds in its descent, due to the action of the second micro-motor 5, the contrast spring 42 newly prevails on the force determined by the fluid pressure F and advances the cursor 40 and the rod 2.
  • the control unit 60 in a suitable phase relation with the descent of the piston 50, starts up the first micro-motor 1 too, setting the threaded rod 2 in leftwise rotation so that it unscrews from the rivet 3 which by now is blocked to the wall P ( figure 10 ).
  • the second micro-motor 5 is maintained in motion until the piston 50 reaches the lowered start position, after which it is automatically deactivated by the control unit 60 (see figure 10 once more); the signal which attests to the reaching of the position can be given by an end-run sensor (not illustrated), or by the increase of absorption of the micro-motor 5 consequent upon the intercepting of a mechanical end-run stop 53 which is integral with the piston 50.
  • the foreseen functioning program is completed ( figure 11 ).
  • the pistol 100 is newly in the condition described with reference to figure 4 , with the control unit 60 predisposed for a new cycle.
  • a particularly able operator therefore, can optimally synchronise the disengagement of the rod 2 with the halting of the micro-motor 1, such as to render the pistol 100 immediately ready for another rivet 3, previously positioned on the wall P.
  • the unscrewing can be completed by pressing the emergency command, in order to reactivate the micro-motor 1 with a further left-wise rotation of the rod 2.
  • the pistol 100 does not minimally suffer from any manoeuvring error which might be committed if, following an early release of the trigger 63, pressure is newly placed thereon.
  • the control logic of the control unit 60 can be programmed to continue the interrupted cycle if, for example, release occurs during the stage of deformation of the rivet 3.
  • the pistol repeats the automatic traction cycle on the rod 2 without causing undesired stress on the rivet 3 applied, as on reaching the preceding maximum fluid pressure F, the control unit 60 interrupts the action and starts unscrewing, so that the only drawback that obtains is a slight waste of time.
  • Other embodiments of the electro-hydraulic pistol device are envisaged, apart from the one illustrated and described herein above.
  • the batteries 7 and possibly also the control unit 60 can be housed in a module which is external of the body of the pistol; this is to contain the weight and size of the pistol, making it easier to use.
  • the batteries are eliminated and electrical energy is sourced from a network, with the interposing of a suitable transformer/rectifier, with the aim of obtaining unlimited working autonomy, together (in this case too) with a considerable reduction in weight.
  • the constructional characteristics of the two above-mentioned embodiments are combined, thus providing a module which is external of the body of the pistol which contains, apart from the batteries and the control unit, the transformer/rectifier for network-sourced power and possibly a device for recharging the batteries. From the above it can be understood how the electro-hydraulic pistol device fully reaches the set aims, in particular for obtaining a functioning logic which is entirely similar to that of the known-type pistol cited in the preamble hereto, without there being any need for supply of compressed air.

Landscapes

  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Actuator (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Regulating Braking Force (AREA)
  • Clamps And Clips (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Manipulator (AREA)
  • Connection Of Plates (AREA)
  • Servomotors (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
  • Surgical Instruments (AREA)
EP08101965A 2008-02-21 2008-02-25 Dispositif électro-hydraulique avec contrôle électronique pour déformer des écrous à river Active EP2093024B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000117A ITBO20080117A1 (it) 2008-02-21 2008-02-21 Dispositivo elettro-idraulico a pistola con controllo elettronico per la deformazione di elementi di fissaggio

Publications (2)

Publication Number Publication Date
EP2093024A1 true EP2093024A1 (fr) 2009-08-26
EP2093024B1 EP2093024B1 (fr) 2010-09-22

Family

ID=40291438

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08101965A Active EP2093024B1 (fr) 2008-02-21 2008-02-25 Dispositif électro-hydraulique avec contrôle électronique pour déformer des écrous à river

Country Status (8)

Country Link
US (1) US20110271504A1 (fr)
EP (1) EP2093024B1 (fr)
AT (1) ATE482055T1 (fr)
BR (1) BRPI0907795B1 (fr)
DE (1) DE602008002698D1 (fr)
ES (1) ES2353468T3 (fr)
IT (1) ITBO20080117A1 (fr)
WO (1) WO2009103695A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011026944A1 (fr) * 2009-09-04 2011-03-10 Böllhoff Verbindungstechnik GmbH Entraînement hydraulique à moteur électrique et procédé pour fournir une pression et/ou un volume hydrauliques définis
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
WO2014195189A1 (fr) * 2013-06-04 2014-12-11 VVG-Befestigungstechnik GmbH & Co. KG Appareil de rivetage
EP3067157A1 (fr) 2015-03-11 2016-09-14 OBER S.p.A. Système de couplage/découplage d'un tirant fileté vers/depuis un siège de tirant dans un pistolet pour déformer des éléments de fixation et pistolet avec le système
US20200070327A1 (en) * 2018-09-05 2020-03-05 Milwaukee Electric Tool Corporation Blind rivet nut-setting tool
EP4008482A1 (fr) * 2020-12-07 2022-06-08 Dubuis et Cie Outil d'assemblage pour assembler un élément déformable sur une pièce à usiner
EP4371681A1 (fr) 2022-11-17 2024-05-22 Bollhoff Otalu S.A.S. Dispositif de pose pour écrou à rivet aveugle
US12453999B2 (en) 2021-07-28 2025-10-28 Milwaukee Electric Tool Corporation Blind rivet nut-setting tool

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8205779B2 (en) 2009-07-23 2012-06-26 Tyco Healthcare Group Lp Surgical stapler with tactile feedback system
JP5674691B2 (ja) 2012-02-23 2015-02-25 株式会社ロブテックス 電動リベッター
EP2786843B1 (fr) * 2013-04-02 2019-09-25 Dubuis et Cie S.A.S. Outil de sertissage alimenté par batterie
TWI477331B (zh) * 2013-08-09 2015-03-21 Tranmax Machinery Co Ltd Electromotive pull nail gun with pre - tensioned nail and its operation method
CN207915402U (zh) 2018-02-13 2018-09-28 米沃奇电动工具公司 用于铆钉设置工具的鼻夹组
JP7187339B2 (ja) * 2019-01-30 2022-12-12 ポップリベット・ファスナー株式会社 ブラインドナット締結装置
WO2021247876A1 (fr) 2020-06-03 2021-12-09 Milwaukee Electric Tool Corporation Outil de rivetage
IT202100010556A1 (it) * 2021-04-27 2022-10-27 Ober S P A Attrezzatura portatile
CN223507129U (zh) 2022-07-08 2025-11-04 米沃奇电动工具公司 动力式紧固件驱动器
US12343785B2 (en) * 2023-04-11 2025-07-01 Techway Industrial Co., Ltd. Power tool
EP4653143A1 (fr) 2024-05-21 2025-11-26 Bollhof Otalu SAS Dispositif de pose et procédé de pose d'écrou à rivet aveugle
AU2024339206B1 (en) * 2024-12-05 2025-07-31 Meishan Crrc Fastening System Co., Ltd. Electro-hydraulic Riveting Tool

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2779670A1 (fr) * 1998-06-15 1999-12-17 Jean Claude Joux Appareil electroportatif pour la pose des ecrous a sertir ou le sertissage des rivets aveugles a rupture de tige
WO2008132576A2 (fr) * 2007-04-27 2008-11-06 Ober S.P.A. Riveteuse pneumo-hydraulique

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2753072A (en) * 1952-08-12 1956-07-03 Thor Power Tool Co Tool for installing tubular rivets
JPH0475882A (ja) * 1990-07-13 1992-03-10 Makita Corp 電動工具
DE4126602A1 (de) * 1991-08-12 1993-02-18 Gesipa Blindniettechnik Blindnietgeraet
DE19818757A1 (de) * 1998-04-27 1999-11-04 Honsel M H Beteiligungs Gmbh Nietsetzgerät
DE19818756A1 (de) * 1998-04-27 1999-11-04 Honsel M H Beteiligungs Gmbh Nietsetzgerät
GB9923266D0 (en) * 1999-10-02 1999-12-08 Textron Fastening Syst Ltd Riveting apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2779670A1 (fr) * 1998-06-15 1999-12-17 Jean Claude Joux Appareil electroportatif pour la pose des ecrous a sertir ou le sertissage des rivets aveugles a rupture de tige
WO2008132576A2 (fr) * 2007-04-27 2008-11-06 Ober S.P.A. Riveteuse pneumo-hydraulique

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011026944A1 (fr) * 2009-09-04 2011-03-10 Böllhoff Verbindungstechnik GmbH Entraînement hydraulique à moteur électrique et procédé pour fournir une pression et/ou un volume hydrauliques définis
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
WO2014195189A1 (fr) * 2013-06-04 2014-12-11 VVG-Befestigungstechnik GmbH & Co. KG Appareil de rivetage
US10112232B2 (en) 2013-06-04 2018-10-30 VVG-Befestigungstechnik GmbH & Co. KG Riveting device
EP3067157A1 (fr) 2015-03-11 2016-09-14 OBER S.p.A. Système de couplage/découplage d'un tirant fileté vers/depuis un siège de tirant dans un pistolet pour déformer des éléments de fixation et pistolet avec le système
EP3674037A1 (fr) * 2018-09-05 2020-07-01 Milwaukee Electric Tool Corporation Outil de réglage d'écrou à rivet aveugle
US20200070327A1 (en) * 2018-09-05 2020-03-05 Milwaukee Electric Tool Corporation Blind rivet nut-setting tool
US11673243B2 (en) * 2018-09-05 2023-06-13 Milwaukee Electric Tool Corporation Blind rivet nut-setting tool
US20230271307A1 (en) * 2018-09-05 2023-08-31 Milwaukee Electric Tool Corporation Blind rivet nut-setting tool
US12194603B2 (en) * 2018-09-05 2025-01-14 Milwaukee Electric Tool Corporation Blind rivet nut-setting tool
US20250114925A1 (en) * 2018-09-05 2025-04-10 Milwaukee Electric Tool Corporation Blind rivet nut-setting tool
EP4008482A1 (fr) * 2020-12-07 2022-06-08 Dubuis et Cie Outil d'assemblage pour assembler un élément déformable sur une pièce à usiner
US12453999B2 (en) 2021-07-28 2025-10-28 Milwaukee Electric Tool Corporation Blind rivet nut-setting tool
EP4371681A1 (fr) 2022-11-17 2024-05-22 Bollhoff Otalu S.A.S. Dispositif de pose pour écrou à rivet aveugle
WO2024104644A1 (fr) 2022-11-17 2024-05-23 Bollhoff Otalu Sas Dispositif de pose d'un écrou de rivet aveugle

Also Published As

Publication number Publication date
US20110271504A1 (en) 2011-11-10
WO2009103695A1 (fr) 2009-08-27
EP2093024B1 (fr) 2010-09-22
BRPI0907795B1 (pt) 2019-12-17
ES2353468T3 (es) 2011-03-02
BRPI0907795A2 (pt) 2015-07-14
ITBO20080117A1 (it) 2009-08-22
ATE482055T1 (de) 2010-10-15
DE602008002698D1 (de) 2010-11-04

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