EP3599041A1 - Portable tool with a removable head - Google Patents

Portable tool with a removable head Download PDF

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Publication number
EP3599041A1
EP3599041A1 EP19184712.8A EP19184712A EP3599041A1 EP 3599041 A1 EP3599041 A1 EP 3599041A1 EP 19184712 A EP19184712 A EP 19184712A EP 3599041 A1 EP3599041 A1 EP 3599041A1
Authority
EP
European Patent Office
Prior art keywords
barrel
portable tool
pressure
shoe
groove
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
EP19184712.8A
Other languages
German (de)
French (fr)
Other versions
EP3599041B1 (en
Inventor
Yann-Erick LEMONNIER
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.)
Airbus Operations SAS
Original Assignee
Airbus Operations SAS
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 Airbus Operations SAS filed Critical Airbus Operations SAS
Publication of EP3599041A1 publication Critical patent/EP3599041A1/en
Application granted granted Critical
Publication of EP3599041B1 publication Critical patent/EP3599041B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B21J15/10—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
    • B21J15/02—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
    • B21J15/14—Riveting machines specially adapted for riveting specific articles, e.g. brake lining machines
    • B21J15/142—Aerospace structures
    • 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
    • B21J15/20—Drives for riveting machines; Transmission means therefor operated by hydraulic or liquid pressure
    • 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
    • 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
    • B21J15/30—Particular elements, e.g. supports; Suspension equipment specially adapted for 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
    • B21J15/36—Rivet sets, i.e. tools for forming heads; Mandrels for expanding parts of hollow rivets
    • 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
    • B21J15/38—Accessories for use in connection with riveting, e.g. pliers for upsetting; Hand tools for riveting
    • B21J15/48—Devices for caulking rivets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F3/00—Associations of tools for different working operations with one portable power-drive means; Adapters therefor

Definitions

  • the present invention relates to a portable tool comprising a removable head, as well as a system using such a portable tool.
  • the installation of a rivet is carried out using a tool which includes a jaw intended to crush the rivet as it is described in the document DE 20 2016 102 595 .
  • a tool which includes a jaw intended to crush the rivet as it is described in the document DE 20 2016 102 595 .
  • An object of the present invention is to provide a portable tool which has an easily removable head.
  • the head of such a tool can therefore be easily and quickly disassembled and replaced as required, without the aid of a tool or a specialist technician.
  • the portable tool includes a brake for each drawer.
  • the brake takes the form of a ball mounted on a spring in the shoe where the spring constrains the ball against the drawer.
  • the portable tool comprises an O-ring placed in a groove around the barrel and which rubs against the surface of the shoe bore.
  • the Fig. 1 shows a portable tool 100 according to the invention and which is configured here for setting rivets.
  • the Fig. 2 shows a section of the portable tool 100 according to a median plane and without the head.
  • the portable tool 100 comprises a hollow body 102 delimiting two chambers 104a, 104h and a jack 106 comprising a piston 107 slidably mounted in the chambers 104a, 104h.
  • the two chambers 104a and 104h are arranged on either side of the piston 107.
  • the pressure difference between the two chambers 104a, 104h makes it possible to move the piston 107 in one direction or the other.
  • the body 102 has a barrel 112 which extends outwards from a shoulder 113 and the jack 106 has a rod 110 which is integral with the piston 107 and which is housed in the barrel 112. Depending on the position of the piston 107 in chambers 104a and 104h, the free end of the rod 110 more or less emerges from the barrel 112.
  • the jack 106 is hydraulically activated and for this purpose, the body 102 has an inlet socket h which communicates with the chamber 104h which is opposite the rod 110 and which is intended to be connected to a pressure generator hydraulic.
  • the portable tool 100 also includes a head 114 in the form of a C, a first end 116 of which forms a shoe 124 which has a bore in which the barrel 112 is fitted and whose second end 118 is opposite the free end of the rod 110.
  • the second end 118 is aligned with the rod 110.
  • the shoe 124 bears against the shoulder 113.
  • the portable tool 100 also includes a fixing system 120, a section of which is shown in Fig. 3 and which is provided for removably fixing the shoe 124 to the barrel 112.
  • the fixing system 120 comprises a groove 122 produced on the periphery of the barrel 112 and therefore coaxially with the axis of the barrel 112.
  • the fixing system 120 also includes two drawers 126a-b which are slidably mounted on the shoe 124 parallel to a displacement plane which is perpendicular to the axis of the barrel 112.
  • Each drawer 126a-b has a front 128 in an arc of a circle and is movable between a tightened position and a separated position. In the tightened position, the front 128 is housed in the groove 122 and in the separated position, the front 128 is outside the groove 122.
  • the shoe 124 in the closed position, the shoe 124 is wedged between the shoulder 113 and the groove 122 by means of the drawers 126a-b and it is therefore secured to the body 102.
  • the shoe 124 In the separated position, the shoe 124 can be detached from the body 102 and the head 114 can be replaced by another head.
  • the operation of the portable tool 100 is then as follows: the rivet is placed at the second end 118 which is shaped to receive and maintain it, for example due to the presence of an appropriate hole or of a snap, then the cylinder 106 is activated to deploy the rod 110, the free end of which crushes the rivet to fix it.
  • the free end may include a dowel.
  • the installation and replacement of the head 114 are therefore simple, rapid and do not require any tool or the assistance of a specialist technician.
  • the shoe 124 To guide each drawer 126a-b in translation, the shoe 124 has a guide rib 302 on which is fitted a guide groove 304 of the drawer 126a-b.
  • the guide rib 302 and the guide groove 304 each take the form of a T, but other forms are possible.
  • screws 130 are screwed into the shoe 124 by passing through said drawer 126a-b through slots 132 provided for this purpose.
  • the lights 132 take an oblong shape to allow the displacement of the drawer 126a-b.
  • the screws 130 prevent the loss of the drawer 126a-b.
  • a brake 306 is provided for each drawer 126a-b.
  • the brake 306 takes the form of a ball mounted on a spring in the shoe 124 where the spring constrains the ball against the drawer 126a-b and ensures the stability of the positioning of the drawer 126a-b in the closed position and in the separated position.
  • the rotating brake 202 is here an O-ring which is arranged in a groove around the barrel 112 and which rubs against the surface of the bore of the shoe 112.
  • the head 114 can therefore take different positions around the axis of the barrel 112 and be maintained in these different positions, which facilitates the work of the technician.
  • the free end of the rod 110 and the second end 118 are shaped to receive the rivet to be fixed, and may include rivets.
  • the portable tool 100 can be used for other types of fixing. For example, it is possible to attach a first jaw to the free end of the rod 110 and a second jaw at the second end 118 and after activation of the jack 106, the first jaw approaches the second jaw to crush the part arranged between them. Depending on the type of jaw set up, it is then possible to draw or stretch necking. It is also possible to clinch by putting in place the means necessary for the free end of the rod 110 and the second end 118.
  • the Fig. 4 shows a system 400 using the portable tool 100 according to the invention.
  • the system 400 thus comprises the portable tool 100 and a hydraulic system 402.
  • the hydraulic system 402 comprises a control unit 404, a hydraulic pressure generator 406 which supplies hydraulic pressure to the portable tool 100 through the inlet 108h and an adjustment panel 408.
  • the hydraulic pressure generator 406 is capable of delivering a fluid under at least two different operating pressures.
  • the control panel 408 can be a touch screen or buttons or the like. It adjusts the two operating pressures for the hydraulic pressure generator 406.
  • the first pressure corresponds to a pressure which makes it possible to move the rod 110 to bring it into abutment against the second end 118 until contact with the rivet
  • the second pressure greater than the first pressure corresponds to a pressure which makes it possible to exceed the elastic limit of the rivet to deform it plastically and produce a rivet
  • the control unit 404 conventionally comprises, connected by a communication bus: a processor or CPU ("Central Processing Unit” in English); a random access memory RAM (“Random Access Memory” in English); a read only memory (ROM); a storage unit such as a hard disk or a storage medium reader, such as an SD (“Secure Digital”) card reader; at least one communication interface, allowing for example the control unit 404 to communicate with the adjustment panel 408 and the hydraulic pressure generator 406.
  • a processor or CPU Central Processing Unit
  • RAM Random Access Memory
  • ROM read only memory
  • storage unit such as a hard disk or a storage medium reader, such as an SD (“Secure Digital”) card reader
  • SD Secure Digital
  • the processor is capable of executing instructions loaded in RAM from the ROM, an external memory (not shown), a storage medium (such as an SD card), or a network of communication.
  • the processor is able to read and execute instructions from RAM.
  • These instructions form a computer program causing the processor to implement all or part of the algorithms and steps described below.
  • All or part of the algorithms and steps described below can be implemented in software form by execution of a set of instructions by a machine programmable, for example a DSP (“Digital Signal Processor” in English) or a microcontroller, or be implemented in hardware form by a machine or a dedicated component, for example an FPGA (“Field-Programmable Gate Array”) or a ASIC ("Application-Specific Integrated Circuit" in English).
  • a machine programmable for example a DSP (“Digital Signal Processor” in English) or a microcontroller
  • FPGA Field-Programmable Gate Array
  • ASIC Application-Specific Integrated Circuit
  • the portable tool 100 has two buttons 410a-b and the control unit 404 communicates with these buttons 410a-b through the communication interface.
  • an electrical connector 108e connected with the buttons 410a-b is provided on the body 102 for connecting electrical conductors of the control unit 404.
  • the technician releases one or both buttons 410a-b, the control unit 404 then controls the hydraulic pressure generator 406 so that it ceases to deliver the fluid under pressure.
  • the rod 110 then retracts for example under the effect of a spring or by pressure reversal in the jack 106.
  • the portable tool 100 may include a return outlet 108a which communicates with the chamber 104a which is on the side of the rod 110 and which is connected to a source of pressurized air. The release of the pressure in the chamber 104h and the pressurization of the chamber 104a allows the piston 107 to return.
  • the hydraulic pressure generator 406 can be supplied with hydraulic, electrical, pneumatic energy.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shearing Machines (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Automatic Assembly (AREA)
  • Workshop Equipment, Work Benches, Supports, Or Storage Means (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

L'invention concerne un outil portatif (100) comportant un corps (102) creux délimitant deux chambres et comportant un épaulement (113) et un fût (112) s'étendant depuis l'épaulement (113), un vérin comportant un piston coulissant dans les chambres et une tige (110) solidaire du piston et logée dans le fût (112), une tête (114) en forme de C dont une première extrémité (116) forme un sabot (124) percé d'un alésage dans lequel s'emmanche le fût (112) et en appui contre l'épaulement (113) et dont une deuxième extrémité (118) est en regard de l'extrémité libre de la tige (110), et un système de fixation (120) comprenant une gorge réalisée sur le pourtour du fût (112), deux tiroirs (126a-b) montés coulissants sur le sabot (124) parallèlement à un plan de déplacement qui est perpendiculaire à l'axe du fût (112), où chaque tiroir (126a-b) présente un front (128) en arc de cercle et est mobile entre une position resserrée dans laquelle le front (128) se loge dans la gorge, et une position écartée dans laquelle le front (128) est en dehors de la gorge.La tête d'un tel outil peut donc être facilement et rapidement démontée et remplacée en fonction des besoins et ceci sans l'aide d'outil ou d'un technicien spécialiste.The invention relates to a portable tool (100) comprising a hollow body (102) delimiting two chambers and comprising a shoulder (113) and a barrel (112) extending from the shoulder (113), a jack comprising a sliding piston. in the chambers and a rod (110) integral with the piston and housed in the barrel (112), a C-shaped head (114), a first end (116) of which forms a shoe (124) pierced with a bore in which fits the barrel (112) and bears against the shoulder (113) and a second end (118) of which faces the free end of the rod (110), and a fixing system (120) comprising a groove made on the periphery of the barrel (112), two drawers (126a-b) slidably mounted on the shoe (124) parallel to a displacement plane which is perpendicular to the axis of the barrel (112), where each drawer ( 126a-b) has a front (128) in an arc of a circle and is movable between a constricted position in which the front (128) is housed in the groove, and an open position in which the front (128) is outside the groove. The head of such a tool can therefore be easily and quickly disassembled and replaced as required and without the help of tool or specialist technician.

Description

DOMAINE TECHNIQUETECHNICAL AREA

La présente invention concerne un outil portatif comportant une tête démontable, ainsi qu'un système utilisant un tel outil portatif.The present invention relates to a portable tool comprising a removable head, as well as a system using such a portable tool.

ETAT DE LA TECHNIQUE ANTERIEURESTATE OF THE PRIOR ART

La pose d'un rivet s'effectue à l'aide d'un outil qui comporte une mâchoire destinée à écraser le rivet tel qu'il est décrit dans le document DE 20 2016 102595 . Afin d'ajuster la mâchoire à la géométrie des pièces à assembler, il est souhaitable de pouvoir changer la mâchoire.The installation of a rivet is carried out using a tool which includes a jaw intended to crush the rivet as it is described in the document DE 20 2016 102 595 . In order to adjust the jaw to the geometry of the parts to be assembled, it is desirable to be able to change the jaw.

Actuellement, le changement de la mâchoire est relativement long et compliqué et doit être réalisé par un technicien spécialiste.Currently, the change of the jaw is relatively long and complicated and must be carried out by a specialist technician.

EXPOSE DE L'INVENTIONSTATEMENT OF THE INVENTION

Un objet de la présente invention est de proposer un outil portatif qui comporte une tête démontable facilement.An object of the present invention is to provide a portable tool which has an easily removable head.

A cet effet, est proposé un outil portatif comportant :

  • un corps creux délimitant deux chambres et comportant un épaulement et un fût s'étendant depuis l'épaulement,
  • un vérin comportant un piston coulissant dans les chambres et une tige solidaire du piston et logée dans le fût,
  • une tête en forme de C dont une première extrémité forme un sabot percé d'un alésage dans lequel s'emmanche le fût et en appui contre l'épaulement et dont une deuxième extrémité est en regard de l'extrémité libre de la tige, et
  • un système de fixation comprenant une gorge réalisée sur le pourtour du fût, deux tiroirs montés coulissants sur le sabot parallèlement à un plan de déplacement qui est perpendiculaire à l'axe du fût, où chaque tiroir présente un front en arc de cercle et est mobile entre une position resserrée dans laquelle le front se loge dans la gorge et, une position écartée dans laquelle le front est en dehors de la gorge.
To this end, a portable tool is proposed comprising:
  • a hollow body delimiting two chambers and comprising a shoulder and a barrel extending from the shoulder,
  • a jack comprising a piston sliding in the chambers and a rod integral with the piston and housed in the barrel,
  • a C-shaped head, a first end of which forms a shoe pierced with a bore in which the barrel is fitted and bears against the shoulder and a second end of which faces the free end of the rod, and
  • a fixing system comprising a groove made on the periphery of the barrel, two drawers mounted sliding on the shoe parallel to a displacement plane which is perpendicular to the axis of the barrel, where each drawer has a front in an arc of a circle and is movable between a constricted position in which the forehead is housed in the groove and, a spread position in which the forehead is outside the groove.

La tête d'un tel outil peut donc être facilement et rapidement démontée et remplacée en fonction des besoins et ceci sans l'aide d'outil ou d'un technicien spécialiste.The head of such a tool can therefore be easily and quickly disassembled and replaced as required, without the aid of a tool or a specialist technician.

Avantageusement, l'outil portatif comporte un frein pour chaque tiroir.Advantageously, the portable tool includes a brake for each drawer.

Avantageusement, le frein prend la forme d'une bille montée sur un ressort dans le sabot où le ressort contraint la bille contre le tiroir.Advantageously, the brake takes the form of a ball mounted on a spring in the shoe where the spring constrains the ball against the drawer.

Avantageusement, l'outil portatif comporte un joint torique disposé dans une gorge autour du fût et qui frotte contre la surface de l'alésage du sabot.Advantageously, the portable tool comprises an O-ring placed in a groove around the barrel and which rubs against the surface of the shoe bore.

L'invention propose également un système comportant un outil portatif selon l'une des variantes précédentes et un système hydraulique comportant :

  • une unité de contrôle, et
  • un générateur de pression hydraulique qui fournit une pression hydraulique à l'outil portatif sous une première pression et une deuxième pression supérieure à la première pression,
où l'outil portatif comporte un premier bouton et un deuxième bouton,
où lorsque le premier bouton est appuyé, l'unité de contrôle commande alors le générateur de pression hydraulique pour qu'il délivre le fluide sous une pression égale à la première pression, et
où lorsque le deuxième bouton est appuyé, l'unité de contrôle commande alors le générateur de pression hydraulique pour qu'il délivre le fluide sous une pression égale à la deuxième pression.The invention also provides a system comprising a portable tool according to one of the preceding variants and a hydraulic system comprising:
  • a control unit, and
  • a hydraulic pressure generator which supplies hydraulic pressure to the portable tool under a first pressure and a second pressure greater than the first pressure,
where the portable tool has a first button and a second button,
where when the first button is pressed, the control unit then controls the hydraulic pressure generator so that it delivers the fluid under a pressure equal to the first pressure, and
where when the second button is pressed, the control unit then controls the hydraulic pressure generator so that it delivers the fluid under a pressure equal to the second pressure.

BREVE DESCRIPTION DES DESSINSBRIEF DESCRIPTION OF THE DRAWINGS

Les caractéristiques de l'invention mentionnées ci-dessus, ainsi que d'autres, apparaîtront plus clairement à la lecture de la description suivante d'un exemple de réalisation, ladite description étant faite en relation avec les dessins joints, parmi lesquels :

  • la Fig. 1 représente une vue en perspective d'un outil portatif selon l'invention,
  • la Fig. 2 montre une vue de côté et en coupe du corps de l'outil de la Fig. 1,
  • la Fig. 3 est une vue de côté et en coupe du système de fixation de la tête, et
  • la Fig. 4 est une représentation schématique d'un système utilisant l'outil portatif selon l'invention.
The characteristics of the invention mentioned above, as well as others, will appear more clearly on reading the following description of an exemplary embodiment, said description being made in relation to the accompanying drawings, among which:
  • the Fig. 1 represents a perspective view of a portable tool according to the invention,
  • the Fig. 2 shows a side and sectional view of the tool body of the Fig. 1 ,
  • the Fig. 3 is a side and sectional view of the head fastening system, and
  • the Fig. 4 is a schematic representation of a system using the portable tool according to the invention.

EXPOSE DETAILLE DE MODES DE REALISATIONDETAILED DESCRIPTION OF EMBODIMENTS

La Fig. 1 montre un outil portatif 100 selon l'invention et qui est configuré ici pour poser des rivets. La Fig. 2 montre une coupe de l'outil portatif 100 selon un plan médian et sans la tête.The Fig. 1 shows a portable tool 100 according to the invention and which is configured here for setting rivets. The Fig. 2 shows a section of the portable tool 100 according to a median plane and without the head.

L'outil portatif 100 comporte un corps 102 creux délimitant deux chambres 104a, 104h et un vérin 106 comportant un piston 107 monté coulissant dans les chambres 104a, 104h. Les deux chambres 104a et 104h sont disposées de part et d'autre du piston 107. Classiquement la différence de pression entre les deux chambres 104a, 104h permet de déplacer le piston 107 dans un sens ou dans l'autre.The portable tool 100 comprises a hollow body 102 delimiting two chambers 104a, 104h and a jack 106 comprising a piston 107 slidably mounted in the chambers 104a, 104h. The two chambers 104a and 104h are arranged on either side of the piston 107. Conventionally, the pressure difference between the two chambers 104a, 104h makes it possible to move the piston 107 in one direction or the other.

Le corps 102 présente un fût 112 qui s'étend vers l'extérieur depuis un épaulement 113 et le vérin 106 présente une tige 110 qui est solidaire du piston 107 et qui est logée dans le fût 112. En fonction de la position du piston 107 dans les chambres 104a et 104h, l'extrémité libre de la tige 110 sort plus ou moins du fût 112.The body 102 has a barrel 112 which extends outwards from a shoulder 113 and the jack 106 has a rod 110 which is integral with the piston 107 and which is housed in the barrel 112. Depending on the position of the piston 107 in chambers 104a and 104h, the free end of the rod 110 more or less emerges from the barrel 112.

Dans le mode de réalisation de l'invention présenté à la Fig. 2, le vérin 106 est activé hydrauliquement et à cet effet, le corps 102 comporte une prise d'entrée h qui communique avec la chambre 104h qui est à l'opposé de la tige 110 et qui est prévue pour être connectée à un générateur de pression hydraulique.In the embodiment of the invention presented in the Fig. 2 , the jack 106 is hydraulically activated and for this purpose, the body 102 has an inlet socket h which communicates with the chamber 104h which is opposite the rod 110 and which is intended to be connected to a pressure generator hydraulic.

L'outil portatif 100 comporte également une tête 114 sous la forme d'un C dont une première extrémité 116 forme un sabot 124 qui présente un alésage dans lequel s'emmanche le fût 112 et dont une deuxième extrémité 118 est en regard de l'extrémité libre de la tige 110. La deuxième extrémité 118 est alignée avec la tige 110. Le sabot 124 est en appui contre l'épaulement 113.The portable tool 100 also includes a head 114 in the form of a C, a first end 116 of which forms a shoe 124 which has a bore in which the barrel 112 is fitted and whose second end 118 is opposite the free end of the rod 110. The second end 118 is aligned with the rod 110. The shoe 124 bears against the shoulder 113.

L'outil portatif 100 comporte également un système de fixation 120 dont une coupe est montrée en Fig. 3 et qui est prévu pour fixer de manière amovible le sabot 124 au fût 112.The portable tool 100 also includes a fixing system 120, a section of which is shown in Fig. 3 and which is provided for removably fixing the shoe 124 to the barrel 112.

Le système de fixation 120 comprend une gorge 122 réalisée sur le pourtour du fût 112 et donc de manière coaxiale avec l'axe du fût 112.The fixing system 120 comprises a groove 122 produced on the periphery of the barrel 112 and therefore coaxially with the axis of the barrel 112.

Le système de fixation 120 comprend également deux tiroirs 126a-b qui sont montés coulissants sur le sabot 124 parallèlement à un plan de déplacement qui est perpendiculaire à l'axe du fût 112.The fixing system 120 also includes two drawers 126a-b which are slidably mounted on the shoe 124 parallel to a displacement plane which is perpendicular to the axis of the barrel 112.

Chaque tiroir 126a-b présente un front 128 en arc de cercle et est mobile entre une position resserrée et une position écartée. Dans la position resserrée, le front 128 se loge dans la gorge 122 et dans la position écartée, le front 128 est en dehors de la gorge 122.Each drawer 126a-b has a front 128 in an arc of a circle and is movable between a tightened position and a separated position. In the tightened position, the front 128 is housed in the groove 122 and in the separated position, the front 128 is outside the groove 122.

Ainsi, en position resserrée, le sabot 124 est coincé entre l'épaulement 113 et la gorge 122 par l'intermédiaire des tiroirs 126a-b et il est donc solidaire du corps 102. En position écartée, le sabot 124 peut être détaché du corps 102 et la tête 114 peut être remplacée par une autre tête.Thus, in the closed position, the shoe 124 is wedged between the shoulder 113 and the groove 122 by means of the drawers 126a-b and it is therefore secured to the body 102. In the separated position, the shoe 124 can be detached from the body 102 and the head 114 can be replaced by another head.

Le fonctionnement de l'outil portatif 100 est alors le suivant : le rivet est placé au niveau de la deuxième extrémité 118 qui est conformée pour le recevoir et le maintenir, par exemple du fait de la présence d'un trou approprié ou d'une bouterolle, puis le vérin 106 est activé pour déployer la tige 110 dont l'extrémité libre vient écraser le rivet pour le fixer. L'extrémité libre peut comporter une bouterolle.The operation of the portable tool 100 is then as follows: the rivet is placed at the second end 118 which is shaped to receive and maintain it, for example due to the presence of an appropriate hole or of a snap, then the cylinder 106 is activated to deploy the rod 110, the free end of which crushes the rivet to fix it. The free end may include a dowel.

La mise en place et le remplacement de la tête 114 sont donc simples, rapides et ne nécessitent ni outil, ni l'aide d'un technicien spécialiste.The installation and replacement of the head 114 are therefore simple, rapid and do not require any tool or the assistance of a specialist technician.

Pour guider chaque tiroir 126a-b en translation, le sabot 124 présente une nervure de guidage 302 sur laquelle s'emmanche une rainure de guidage 304 du tiroir 126a-b. Dans le mode de réalisation de l'invention représenté à la Fig. 3, la nervure de guidage 302 et la rainure de guidage 304 prennent chacune la forme d'un T, mais d'autres formes sont possibles.To guide each drawer 126a-b in translation, the shoe 124 has a guide rib 302 on which is fitted a guide groove 304 of the drawer 126a-b. In the embodiment of the invention shown in Fig. 3 , the guide rib 302 and the guide groove 304 each take the form of a T, but other forms are possible.

Pour chaque tiroir 126a-b, des vis 130 sont vissées dans le sabot 124 en traversant ledit tiroir 126a-b à travers des lumières 132 prévues à cet effet. Ici, les lumières 132 prennent une forme oblongue pour autoriser le déplacement du tiroir 126a-b. Les vis 130 évitent la perte du tiroir 126a-b.For each drawer 126a-b, screws 130 are screwed into the shoe 124 by passing through said drawer 126a-b through slots 132 provided for this purpose. Here, the lights 132 take an oblong shape to allow the displacement of the drawer 126a-b. The screws 130 prevent the loss of the drawer 126a-b.

Pour éviter un déplacement non souhaité des tiroirs 126a-b, un frein 306 est prévu pour chaque tiroir 126a-b. Dans le mode de réalisation de l'invention présenté à la Fig. 3, le frein 306 prend la forme d'une bille montée sur un ressort dans le sabot 124 où le ressort contraint la bille contre le tiroir 126a-b et assure la stabilité du positionnement du tiroir 126a-b en position resserrée et en position écartée.To avoid unwanted displacement of the drawers 126a-b, a brake 306 is provided for each drawer 126a-b. In the embodiment of the invention presented in the Fig. 3 , the brake 306 takes the form of a ball mounted on a spring in the shoe 124 where the spring constrains the ball against the drawer 126a-b and ensures the stability of the positioning of the drawer 126a-b in the closed position and in the separated position.

Pour freiner la rotation du sabot 124 autour du fût 112, un frein en rotation 202 est mis en place. Le frein en rotation 202 est ici un joint torique qui est disposé dans une gorge autour du fût 112 et qui frotte contre la surface de l'alésage du sabot 112. La tête 114 peut donc prendre différentes positions autour de l'axe du fût 112 et être maintenue dans ces différentes positions, ce qui facilite le travail du technicien.To brake the rotation of the shoe 124 around the barrel 112, a rotating brake 202 is put in place. The rotating brake 202 is here an O-ring which is arranged in a groove around the barrel 112 and which rubs against the surface of the bore of the shoe 112. The head 114 can therefore take different positions around the axis of the barrel 112 and be maintained in these different positions, which facilitates the work of the technician.

L'extrémité libre de la tige 110 et la deuxième extrémité 118 sont conformées pour recevoir le rivet à fixer, et peuvent comporter des bouterolles. Mais l'outil portatif 100 peut être utilisé pour d'autres types de fixation. Par exemple, il est possible de fixer un premier mors à l'extrémité libre de la tige 110 et un deuxième mors au niveau de la deuxième extrémité 118 et après activation du vérin 106, le premier mors se rapproche du deuxième mors pour écraser la pièce disposée entre eux. Selon le type de mors mis en place, il est alors possible de réaliser un étirage ou une rétreinte. Il est également possible de faire du clinchage en mettant en place les moyens nécessaires à l'extrémité libre de la tige 110 et à la deuxième extrémité 118.The free end of the rod 110 and the second end 118 are shaped to receive the rivet to be fixed, and may include rivets. However, the portable tool 100 can be used for other types of fixing. For example, it is possible to attach a first jaw to the free end of the rod 110 and a second jaw at the second end 118 and after activation of the jack 106, the first jaw approaches the second jaw to crush the part arranged between them. Depending on the type of jaw set up, it is then possible to draw or stretch necking. It is also possible to clinch by putting in place the means necessary for the free end of the rod 110 and the second end 118.

La Fig. 4 montre un système 400 utilisant l'outil portatif 100 selon l'invention.The Fig. 4 shows a system 400 using the portable tool 100 according to the invention.

Le système 400 comporte ainsi l'outil portatif 100 et un système hydraulique 402.The system 400 thus comprises the portable tool 100 and a hydraulic system 402.

Le système hydraulique 402 comporte une unité de contrôle 404, un générateur de pression hydraulique 406 qui fournit une pression hydraulique à l'outil portatif 100 à travers la prise d'entrée 108h et un panneau de réglage 408.The hydraulic system 402 comprises a control unit 404, a hydraulic pressure generator 406 which supplies hydraulic pressure to the portable tool 100 through the inlet 108h and an adjustment panel 408.

Le générateur de pression hydraulique 406 est apte à délivrer un fluide sous au moins deux pressions de fonctionnement différentes.The hydraulic pressure generator 406 is capable of delivering a fluid under at least two different operating pressures.

Le panneau de réglage 408 peut être un écran tactile ou des boutons ou autres. Il permet de régler les deux pressions de fonctionnement pour le générateur de pression hydraulique 406.The control panel 408 can be a touch screen or buttons or the like. It adjusts the two operating pressures for the hydraulic pressure generator 406.

Dans le cas d'une utilisation pour des rivets, la première pression correspond à une pression qui permet de déplacer la tige 110 pour l'amener en butée contre la deuxième extrémité 118 jusqu'au contact du rivet, et la deuxième pression supérieure à la première pression correspond à une pression qui permet de dépasser la limite d'élasticité du rivet pour le déformer plastiquement et réaliser une rivure.In the case of use for rivets, the first pressure corresponds to a pressure which makes it possible to move the rod 110 to bring it into abutment against the second end 118 until contact with the rivet, and the second pressure greater than the first pressure corresponds to a pressure which makes it possible to exceed the elastic limit of the rivet to deform it plastically and produce a rivet.

L'unité de contrôle 404 comprend classiquement, reliés par un bus de communication: un processeur ou CPU (« Central Processing Unit » en anglais) ; une mémoire vive RAM (« Random Access Memory » en anglais) ; une mémoire morte ROM (« Read Only Memory » en anglais) ; une unité de stockage telle qu'un disque dur ou un lecteur de support de stockage, tel qu'un lecteur de cartes SD (« Secure Digital » en anglais) ; au moins une interface de communication, permettant par exemple à l'unité de contrôle 404 de communiquer avec le panneau de réglage 408 et le générateur de pression hydraulique 406.The control unit 404 conventionally comprises, connected by a communication bus: a processor or CPU ("Central Processing Unit" in English); a random access memory RAM (“Random Access Memory” in English); a read only memory (ROM); a storage unit such as a hard disk or a storage medium reader, such as an SD (“Secure Digital”) card reader; at least one communication interface, allowing for example the control unit 404 to communicate with the adjustment panel 408 and the hydraulic pressure generator 406.

Le processeur est capable d'exécuter des instructions chargées dans la RAM à partir de la ROM, d'une mémoire externe (non représentée), d'un support de stockage (tel qu'une carte SD), ou d'un réseau de communication. Lorsque l'équipement est mis sous tension, le processeur est capable de lire de la RAM des instructions et de les exécuter. Ces instructions forment un programme d'ordinateur causant la mise en oeuvre, par le processeur, de tout ou partie des algorithmes et étapes décrits ci-dessous.The processor is capable of executing instructions loaded in RAM from the ROM, an external memory (not shown), a storage medium (such as an SD card), or a network of communication. When the equipment is powered up, the processor is able to read and execute instructions from RAM. These instructions form a computer program causing the processor to implement all or part of the algorithms and steps described below.

Tout ou partie des algorithmes et étapes décrits ci-dessous peut être implémenté sous forme logicielle par exécution d'un ensemble d'instructions par une machine programmable, par exemple un DSP (« Digital Signal Processor » en anglais) ou un microcontrôleur, ou être implémenté sous forme matérielle par une machine ou un composant dédié, par exemple un FPGA (« Field-Programmable Gate Array » en anglais) ou un ASIC (« Application-Specific Integrated Circuit » en anglais).All or part of the algorithms and steps described below can be implemented in software form by execution of a set of instructions by a machine programmable, for example a DSP (“Digital Signal Processor” in English) or a microcontroller, or be implemented in hardware form by a machine or a dedicated component, for example an FPGA (“Field-Programmable Gate Array”) or a ASIC ("Application-Specific Integrated Circuit" in English).

L'outil portatif 100 comporte deux boutons 410a-b et l'unité de contrôle 404 communique avec ces boutons 410a-b à travers l'interface de communication. A cette fin, un connecteur électrique 108e connecté avec les boutons 410a-b est prévu sur le corps 102 pour connecter des conducteurs électriques de l'unité de contrôle 404.The portable tool 100 has two buttons 410a-b and the control unit 404 communicates with these buttons 410a-b through the communication interface. To this end, an electrical connector 108e connected with the buttons 410a-b is provided on the body 102 for connecting electrical conductors of the control unit 404.

Le fonctionnement du système 400 est alors le suivant :

  • le technicien règle les deux pressions de fonctionnement à l'aide du panneau de réglage 408 et il définit ainsi la première pression et la deuxième pression qui dépendent de l'utilisation envisagée pour l'outil portatif 100, par exemple ces valeurs dépendent du type de rivets utilisés,
  • le technicien appuie sur le premier bouton 410a,
  • l'unité de contrôle 404 commande alors le générateur de pression hydraulique 406 pour qu'il délivre le fluide sous une pression égale à la première pression,
  • après la mise en butée de la tige 110, le technicien appuie sur le deuxième bouton 410b en maintenant l'appui sur le premier bouton 410a,
  • l'unité de contrôle 404 commande alors le générateur de pression hydraulique 406 pour qu'il délivre le fluide sous une pression égale à la deuxième pression, afin de déformer, écraser et fixer le rivet.
The operation of the system 400 is then as follows:
  • the technician adjusts the two operating pressures using the adjustment panel 408 and thus defines the first pressure and the second pressure which depend on the intended use for the portable tool 100, for example these values depend on the type of used rivets,
  • the technician presses the first button 410a,
  • the control unit 404 then controls the hydraulic pressure generator 406 so that it delivers the fluid under a pressure equal to the first pressure,
  • after the rod 110 has been brought into abutment, the technician presses the second button 410b while maintaining the pressure on the first button 410a,
  • the control unit 404 then controls the hydraulic pressure generator 406 so that it delivers the fluid under a pressure equal to the second pressure, in order to deform, crush and fix the rivet.

A la fin du processus, le technicien relâche l'un ou les deux boutons 410a-b, l'unité de contrôle 404 commande alors le générateur de pression hydraulique 406 pour qu'il cesse de délivrer le fluide sous pression. La tige 110 se rétracte alors par exemple sous l'effet d'un ressort ou par inversion de pression dans le vérin 106.At the end of the process, the technician releases one or both buttons 410a-b, the control unit 404 then controls the hydraulic pressure generator 406 so that it ceases to deliver the fluid under pressure. The rod 110 then retracts for example under the effect of a spring or by pressure reversal in the jack 106.

Dans ce dernier cas, l'outil portatif 100 peut comporter une prise de retour 108a qui communique avec la chambre 104a qui est du côté de la tige 110 et qui est connectée à une source d'air sous pression. Le relâchement de la pression dans la chambre 104h et la mise en pression de chambre 104a permet le retour du piston 107.In the latter case, the portable tool 100 may include a return outlet 108a which communicates with the chamber 104a which is on the side of the rod 110 and which is connected to a source of pressurized air. The release of the pressure in the chamber 104h and the pressurization of the chamber 104a allows the piston 107 to return.

Le générateur de pression hydraulique 406 peut être alimenté par une énergie hydraulique, électrique, pneumatique.The hydraulic pressure generator 406 can be supplied with hydraulic, electrical, pneumatic energy.

Claims (5)

Outil portatif (100) comportant : - un corps (102) creux délimitant deux chambres (104a, 104h) et comportant un épaulement (113) et un fût (112) s'étendant depuis l'épaulement (113), - un vérin (106) comportant un piston (107) coulissant dans les chambres (104a, 104h) et une tige (110) solidaire du piston (107) et logée dans le fût (112),
et - un système de fixation (120) comprenant une gorge (122) réalisée sur le pourtour du fût (112), caractérisé en ce que l'outil comporte une tête (114) en forme de C dont une première extrémité (116) forme un sabot (124) percé d'un alésage et en appui contre l'épaulement (113) et dont une deuxième extrémité (118) est en regard de l'extrémité libre de la tige (110), et en ce que le système de fixation (120) comporte deux tiroirs (126a-b) montés coulissants sur le sabot (124) parallèlement à un plan de déplacement qui est perpendiculaire à l'axe du fût (112), où chaque tiroir (126a-b) présente un front (128) en arc de cercle et est mobile entre une position resserrée dans laquelle le front (128) se loge dans la gorge (122), et une position écartée dans laquelle le front (128) est en dehors de la gorge (122).Portable tool (100) comprising: - a hollow body (102) delimiting two chambers (104a, 104h) and comprising a shoulder (113) and a barrel (112) extending from the shoulder (113), a jack (106) comprising a piston (107) sliding in the chambers (104a, 104h) and a rod (110) integral with the piston (107) and housed in the barrel (112),
and a fixing system (120) comprising a groove (122) produced on the periphery of the barrel (112), characterized in that the tool comprises a C-shaped head (114) of which a first end (116) forms a shoe (124) pierced with a bore and bearing against the shoulder (113) and of which a second end (118) is opposite the free end of the rod (110), and in that the fixing system (120) comprises two drawers (126a-b) slidably mounted on the shoe (124) parallel to a plane of displacement which is perpendicular to the axis of the barrel (112), where each drawer (126a-b) has a front (128) in an arc of a circle and is movable between a constricted position in which the front (128) is housed in the groove (122), and a separated position in which the front (128) is outside the groove (122). Outil portatif (100) selon la revendication 1, caractérisé en ce qu'il comporte un frein (306) pour chaque tiroir (126a-b).Portable tool (100) according to claim 1, characterized in that it includes a brake (306) for each drawer (126a-b). Outil portatif (100) selon la revendication 2, caractérisé en ce que le frein (306) prend la forme d'une bille montée sur un ressort dans le sabot (124) où le ressort contraint la bille contre le tiroir (126a-b).Portable tool (100) according to claim 2, characterized in that the brake (306) takes the form of a ball mounted on a spring in the shoe (124) where the spring forces the ball against the drawer (126a-b) . Outil portatif (100) selon l'une des revendications 1 à 3, caractérisé en ce qu'il comporte un joint torique disposé dans une gorge autour du fût (112) et qui frotte contre la surface de l'alésage du sabot (112).Portable tool (100) according to one of claims 1 to 3, characterized in that it comprises an O-ring placed in a groove around the barrel (112) and which rubs against the surface of the hole in the shoe (112) . Système (400) comportant un outil portatif (100) selon l'une des revendications précédentes et un système hydraulique (402) comportant : - une unité de contrôle (404), et - un générateur de pression hydraulique (406) qui fournit une pression hydraulique à l'outil portatif (100) sous une première pression et une deuxième pression supérieure à la première pression, où l'outil portatif (100) comporte un premier bouton (410a) et un deuxième bouton (410b),
où lorsque le premier bouton (410a) est appuyé, l'unité de contrôle (404) commande alors le générateur de pression hydraulique (406) pour qu'il délivre le fluide sous une pression égale à la première pression, et
où lorsque le deuxième bouton (410b) est appuyé, l'unité de contrôle (404) commande alors le générateur de pression hydraulique (406) pour qu'il délivre le fluide sous une pression égale à la deuxième pression.System (400) comprising a portable tool (100) according to one of the preceding claims and a hydraulic system (402) comprising: - a control unit (404), and - a hydraulic pressure generator (406) which supplies hydraulic pressure to the portable tool (100) under a first pressure and a second pressure greater than the first pressure, where the portable tool (100) comprises a first button (410a) and a second button (410b),
where when the first button (410a) is pressed, the control unit (404) then controls the hydraulic pressure generator (406) so that it delivers the fluid under a pressure equal to the first pressure, and
where when the second button (410b) is pressed, the control unit (404) then controls the hydraulic pressure generator (406) so that it delivers the fluid under a pressure equal to the second pressure.
EP19184712.8A 2018-07-25 2019-07-05 Portable tool with a removable head Active EP3599041B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1856894A FR3084269B1 (en) 2018-07-25 2018-07-25 PORTABLE TOOL WITH A REMOVABLE HEAD

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EP3599041A1 true EP3599041A1 (en) 2020-01-29
EP3599041B1 EP3599041B1 (en) 2021-04-14

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US (1) US11407024B2 (en)
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FR (1) FR3084269B1 (en)

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EP0107574A1 (en) * 1982-10-14 1984-05-02 Aero-Technic S.A. Riveting tool with pressure limiter
US7313852B2 (en) * 2003-12-23 2008-01-01 Magna Structural Systems, Inc. Method of forming a rivet using a riveting apparatus
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EP2656943A2 (en) * 2012-04-24 2013-10-30 TKR Spezialwerkzeuge GmbH Riveter frame coupling
DE202016102595U1 (en) 2016-05-13 2016-06-24 Tkr Spezialwerkzeuge Gmbh Nietbügelkopplung

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US2229218A (en) * 1937-03-30 1941-01-21 Midland Steel Prod Co Hydraulic riveting apparatus
US2365538A (en) * 1939-11-18 1944-12-19 Chicago Pneumatic Tool Co Riveting tool
US3581373A (en) * 1968-12-20 1971-06-01 Dresser Ind Riveting device
US9015920B2 (en) * 1997-07-21 2015-04-28 Newfrey Llc Riveting system and process for forming a riveted joint
EP2062334A1 (en) * 2006-09-11 2009-05-27 Cembre S.p.A. Hydraulic pressing and/or cutting tool and mechanism for converting a rotary motion into a translational oscillating motion for this tool
US9027220B2 (en) * 2012-08-07 2015-05-12 Newfrey Llc Rivet setting machine
DE102016111874A1 (en) * 2016-06-29 2018-01-04 Gustav Klauke Gmbh Method for operating a hydraulically operated hand-held device and hydraulically operated hand-held device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0107574A1 (en) * 1982-10-14 1984-05-02 Aero-Technic S.A. Riveting tool with pressure limiter
US7313852B2 (en) * 2003-12-23 2008-01-01 Magna Structural Systems, Inc. Method of forming a rivet using a riveting apparatus
FR2975025A1 (en) * 2011-05-13 2012-11-16 Airbus Operations Sas Crushing device for use in riveting machine for crushing rivets to fix structural panels of aircraft, has frame with upper and lower legs, where lower leg is shorter than upper leg such that rivets are crushed
EP2656943A2 (en) * 2012-04-24 2013-10-30 TKR Spezialwerkzeuge GmbH Riveter frame coupling
DE202016102595U1 (en) 2016-05-13 2016-06-24 Tkr Spezialwerkzeuge Gmbh Nietbügelkopplung

Also Published As

Publication number Publication date
US20200030871A1 (en) 2020-01-30
US11407024B2 (en) 2022-08-09
FR3084269A1 (en) 2020-01-31
EP3599041B1 (en) 2021-04-14
FR3084269B1 (en) 2020-10-23

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