WO2021064672A1 - Dispositif et procédé d'assemblage d'un raccord - Google Patents

Dispositif et procédé d'assemblage d'un raccord Download PDF

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Publication number
WO2021064672A1
WO2021064672A1 PCT/IB2020/059266 IB2020059266W WO2021064672A1 WO 2021064672 A1 WO2021064672 A1 WO 2021064672A1 IB 2020059266 W IB2020059266 W IB 2020059266W WO 2021064672 A1 WO2021064672 A1 WO 2021064672A1
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WO
WIPO (PCT)
Prior art keywords
slider
fitting
ring
stop
assembling device
Prior art date
Application number
PCT/IB2020/059266
Other languages
English (en)
Inventor
Nicola PELATI
Luca GATELLI
Original Assignee
Abl Automazione S.R.L.
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 Abl Automazione S.R.L. filed Critical Abl Automazione S.R.L.
Publication of WO2021064672A1 publication Critical patent/WO2021064672A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
    • B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
    • B23P19/08—Machines for placing washers, circlips, or the like on bolts or other members
    • B23P19/084—Machines for placing washers, circlips, or the like on bolts or other members for placing resilient or flexible rings, e.g. O-rings, circlips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/0028—Tools for removing or installing seals

Definitions

  • the present invention relates to the sector of assembling machines and relates, in particular, to a device for assembling an O-ring and an anti-extrusion ring in a fitting.
  • FIG. 1 shows an embodiment of a fitting with separate parts
  • figure 2 shows a longitudinal section view of the fitting in figure 1
  • - figures 3a to 3d show a assembling device according to the present invention, according to a preferred embodiment, in an initial configuration
  • figures 4a to 4d show the assembling device in a pulling configuration
  • - figures 5a to 5d show the assembling device in a positioning configuration
  • figures 6a to 6d show the assembling device in an inserting configuration.
  • the fitting 1 comprises a fitting body 2, e.g. in one piece, e.g. made of brass, an O-ring or sealing ring 4, and an anti-extrusion ring or back-up ring 6.
  • the sealing ring is generally made of NBR (Nitrile Rubber), silicone, fluorocarbon rubber, EPDM (Ethylene- Propylene Diene Monomer); the back-up ring is generally made of PTFE (Polytetrafluoroethylene), EPDM, TPE
  • the sealing ring 4 displays a different elasticity from that of the back-up ring 6, and in particular the back-up ring is more rigid than the sealing ring, to work as an anti-extrusion ring.
  • the body 2 internally hollow, comprises an annular body wall 8, which extends between a first opening 10 and a second opening 12, along a body axis X, e.g. straight.
  • the body 2 has an annular inner body seat 14, which is obtained in the body wall 8 to house the sealing ring 4 and the anti-extrusion ring 6; the body seat 14 has a bottom diameter Dsc.
  • the body seat 14 is axially delimited between a first seat ridge 16, proximal to the first opening 10 and having a first ridge diameter Dpr, and a second seat ridge 18, proximal to the second opening 12.
  • a assembling device 100 comprises a base 102, which supports, e.g. by means of a rear support 103, a fixed stop 104 with prevailing extension along a fixed axis Z between a front end 106 and a rear end 108.
  • the fixed stop 104 carries a stop head 110 enlarged relative to the remaining part of the fixed stop 104, having a head diameter Dt smaller than the first stop diameter Dpr of the fitting 1.
  • the fixed stop 104 has an axial groove 112 at the top which reaches the front end 106, creating a gap 114 in the stop head 110.
  • the assembling device 100 further comprises a first slider 120, coupled to the fixed stop 104 on the upper part thereof and sliding on command, e.g. in the groove 112.
  • the first slider 120 has a slider hook 122, e.g. corresponding to the end portion of the first slider, which preferably mimics the shape of the stop head 110, to complete it when said slider hook 122 is in the gap 114.
  • the first slider 120 can be commanded in translation between a limit advanced position, in which the slider 122 is near the front end 106 of the fixed stop 104, e.g. aligned with the front end 106 of the fixed stop 104, and in particular with the stop head 110, and a backward limit position.
  • the assembling device 1 comprises first slider actuating means, e.g. pneumatic ones.
  • said first slider actuating means comprise a first connection 124 and a first actuator 126, offset and parallel relative to the stop axis Z, preferably supported by a first support 128, supported, in turn, by the base 102; the first connection 124 is fixed to the first slider 120 and the first actuator 126.
  • said actuating means comprise a first abutment 130, which determines the limit advanced position of the first slider 120, against which the first connection 124, for example, abuts.
  • the assembling device 1 further comprises a second slider 140, which is coupled to the fixed stop 104 at its lower part and slides on the surface of the fixed stop, e.g. on the surface of the fixed stop 104.
  • the second slider 140 has a thrust portion 140a at the front, e.g. corresponding with a front end section. [0026]The second slider 140 can be commanded in translation between a limit advanced position, in which it is proximal to the front end 106 of the fixed stop 104, and in particular to the stop head 110 and a retracted limit position.
  • the assembling device 1 comprises second slider actuating means, e.g. pneumatic.
  • said second slider actuating means comprise a second connection 142 and a second actuator 144, offset and parallel to the axis Z, e.g. on the opposite side to the first actuator 126.
  • the second actuator 144 is preferably supported by a second support 146, supported, in turn, by the base 102; the second connection 142 is fixed to the second slider 140 and the second actuator 144.
  • said actuating means comprise a second abutment 148, which determines the limit advanced position of the second slider 140, against which the second connection 142, for example, abuts.
  • the assembling device 100 further comprises a guide wall 152, arranged radially outside the fixed stop 104, near the front end 106, ending axially upstream of said front end 106.
  • the guide wall 152 is suitable for being inserted into fitting body 2 through the first opening 10.
  • the guide wall 152 circumferentially delimits a chamber 150 around the fixed stop 104, through which the first slider 120 and the second slider 140 pass.
  • the assembling device 1 further comprises a stop body 154 suitable for creating an axial abutment for fitting body 2 inserted on the guide wall 152.
  • the guide wall 152 and the body stop 154, protruding radially from the outside of the guide wall 152, are parts of a bushing 160, crossed by the fixed stop 104, the first slider 120, and the second slider 140.
  • said bushing 160 is supported by a front support 170, supported, in turn, by the base 102.
  • the assembling device 100 comprises electronic control means, e.g. comprising an electronic card or microchip, operationally connected to the first slider and, if necessary, to the second cursor, by means of said actuating means, and configured, for example by programming, for executing the operation specified below.
  • electronic control means e.g. comprising an electronic card or microchip
  • the first slider 120 is in the limit advanced position, and preferably the second slider 140 is in the limit retracted position (figures from 3a to 3d).
  • the slider hook 122 of the first slider 120 forms a ring seat 200 with the stop head 110 of the fixed stop 104, in which seat the sealing ring 4 and the back-up ring 6, hanging at the front end 106, are positioned.
  • the relative axial position between the stop hook 122 and the thrust portion 140a is defined so that the two rings 4, 6 are elastically deformed so that they can return to their original state.
  • the fitting body 2 of the fitting 1 is inserted, by an operator or an automatic system, onto the guide wall 152 through the first opening 10 and brought to the stop of the stop body 154.
  • the front end 106 of the fixed stop 104 is located downstream of the body seat 14, i.e. on the other side of the body seat 14 relative to the opening 10; the thrust portion 140a of the second slider 140 is instead located upstream of the body seat 14, as is the slider hook 122 of the first slider 120.
  • the second slider 140 is preferably in the limit advanced position, so that the 140a thrust portion is substantially aligned axially with the first seat ridge 16 of the fitting body 2 or even inside said seat body 14.
  • the position taken by the second slider 140 is suitable for releasing the rings 4, 6 in the body seat 14.
  • the first slider 120 is also actuated, preferably at the same time as the second slider 140, so that the slider hook 122 approaches the body seat 14, while remaining upstream of the thrust portion 140a.
  • this avoids a breakage or plastic deformation of the rings 4, 6.
  • the first slider 120 is in the limit advanced position, in which the slider hook 122 is downstream of the body seat 14, substantially aligned with the stop head 110
  • the rings 4, 6 take the shape of the original state and occupy the space allocated to them in the body seat 14, disengaging the first slider 120, the second slider 140, and the fixed stop 104.
  • the fitting 1 can thus be removed from the guide wall 152; the assembling device 100 is now back in its initial configuration, ready for assembling an additional fitting .
  • the rings 4, 6 are stretched together, before the insertion into the fitting body, remaining within the limits of elastic behavior, to reduce their maximum dimensions, and are then released into the body seat.
  • the assembling device is provided with a second fixed slider, while the first slider pulls the rings and releases them into the body seat.
  • the assembling device is without a fixed stop.
  • the assembling device and method can be used to mount only one ring, e.g. only the sealing ring or only the back-up ring, or to mount one them in sequence one after the other.
  • the assembling device according to the present invention meets the needs of the sector because it makes it possible to automate the assembling of the sealing ring and of the back-up ring inside a fitting.
  • the invention advantageously makes it possible to install the sealing ring and the back-up ring at the same time, thus reducing the overall production time.
  • It is apparent that a person skilled in the art may make changes to the assembling device and method described above, all of which are contained within the scope of protection as defined in the appended claims to satisfy contingent needs.

Abstract

Le dispositif et le procédé selon l'invention permettent de monter une bague d'étanchéité (4) et, en même temps, une bague de renfort (6) dans un siège de corps (14) d'un corps de raccord (2) d'un raccord (1), en étirant ensemble lesdites bagues (4, 6) avant leur insertion dans le corps de raccord, en restant dans les limites de comportement élastique et en réduisant les dimensions globales maximales de celles-ci, puis en les relâchant dans le siège de corps (14).
PCT/IB2020/059266 2019-10-04 2020-10-02 Dispositif et procédé d'assemblage d'un raccord WO2021064672A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT201900017987 2019-10-04
IT102019000017987 2019-10-04

Publications (1)

Publication Number Publication Date
WO2021064672A1 true WO2021064672A1 (fr) 2021-04-08

Family

ID=69743652

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2020/059266 WO2021064672A1 (fr) 2019-10-04 2020-10-02 Dispositif et procédé d'assemblage d'un raccord

Country Status (1)

Country Link
WO (1) WO2021064672A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115351376A (zh) * 2022-08-15 2022-11-18 陕西百思特模具有限公司 一种单环检测及管内清理的短u管套环装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1000213A1 (ru) * 1981-11-10 1983-02-28 Предприятие П/Я М-5671 Устройство дл установки пакета уплотнительных колец во внутренние канавки деталей
FR2649349A1 (fr) * 1989-07-04 1991-01-11 Rafer Sa Dispositif autorisant l'introduction automatique de circlips dans des rainures etablies interieurement ou exterieurement sur des corps cylindriques
US5138752A (en) * 1991-01-29 1992-08-18 Glidden Machine & Tool, Inc. O-ring positioning tool
JPH08309624A (ja) * 1995-03-13 1996-11-26 Toyota Motor Corp 弾性リング組付方法
US5862578A (en) * 1997-03-20 1999-01-26 Aeroquip Corporation Insertion tool
US6108884A (en) * 1999-04-14 2000-08-29 Aeroquip Corporation Insertion tool
EP1806205A1 (fr) * 2006-01-07 2007-07-11 SIM Automation GmbH & Co.KG Procédé de montage de joints toriques internes et dispositif pour la mise en oeuvre de ce procédé

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1000213A1 (ru) * 1981-11-10 1983-02-28 Предприятие П/Я М-5671 Устройство дл установки пакета уплотнительных колец во внутренние канавки деталей
FR2649349A1 (fr) * 1989-07-04 1991-01-11 Rafer Sa Dispositif autorisant l'introduction automatique de circlips dans des rainures etablies interieurement ou exterieurement sur des corps cylindriques
US5138752A (en) * 1991-01-29 1992-08-18 Glidden Machine & Tool, Inc. O-ring positioning tool
JPH08309624A (ja) * 1995-03-13 1996-11-26 Toyota Motor Corp 弾性リング組付方法
US5862578A (en) * 1997-03-20 1999-01-26 Aeroquip Corporation Insertion tool
US6108884A (en) * 1999-04-14 2000-08-29 Aeroquip Corporation Insertion tool
EP1806205A1 (fr) * 2006-01-07 2007-07-11 SIM Automation GmbH & Co.KG Procédé de montage de joints toriques internes et dispositif pour la mise en oeuvre de ce procédé

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Week 198401, Derwent World Patents Index; AN 1984-004471, XP002799453 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115351376A (zh) * 2022-08-15 2022-11-18 陕西百思特模具有限公司 一种单环检测及管内清理的短u管套环装置
CN115351376B (zh) * 2022-08-15 2024-03-22 陕西百思特模具有限公司 一种单环检测及管内清理的短u管套环装置

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