EP2285534B1 - Outillage de mise en place de douille a clavette et kit comprenant celui-ci - Google Patents

Outillage de mise en place de douille a clavette et kit comprenant celui-ci Download PDF

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Publication number
EP2285534B1
EP2285534B1 EP09761911.8A EP09761911A EP2285534B1 EP 2285534 B1 EP2285534 B1 EP 2285534B1 EP 09761911 A EP09761911 A EP 09761911A EP 2285534 B1 EP2285534 B1 EP 2285534B1
Authority
EP
European Patent Office
Prior art keywords
key
screwing
tool attachment
installing
sleeve
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
EP09761911.8A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2285534A1 (fr
Inventor
Jean-Paul Cousin
Francis Dome
Eric Engrand
Thierry Rousselot
Alexandre Thonnard
Jean-Yves Maillet
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.)
Safran Aircraft Engines SAS
Original Assignee
SNECMA 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 SNECMA SAS filed Critical SNECMA SAS
Publication of EP2285534A1 publication Critical patent/EP2285534A1/fr
Application granted granted Critical
Publication of EP2285534B1 publication Critical patent/EP2285534B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
    • B25B27/143—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same for installing wire thread inserts or tubular threaded inserts
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T279/00—Chucks or sockets
    • Y10T279/34—Accessory or component
    • Y10T279/3406—Adapter

Definitions

  • the invention relates to the field of tools for the implementation of key sockets.
  • Such a keyed sleeve 300 is presented in Figures 1 and 2 . It comprises an externally threaded bushing body 310, which is screwed in place, and one or more keys 320 (four in the example shown), which are crimped at the time of setting up to prevent unscrewing of the bushing. .
  • the crimping of a key is done by striking axially thereof (along the axis of the socket body, arrows A) to penetrate the key, in force, between the sleeve and the housing in which it was previously screwed.
  • the positioning tool 400 comprises a shaft 410, one end of which is able to be rotated by the screwing tool 500 via a shaft adapter 460, and another end receives a socket-fitting nose (not shown), and allows through it the screwing of the socket.
  • the tool 400 can be connected to a pneumatic supply.
  • a plate 420 on the right surface 470 thereof on the figure 3 .
  • this plate 420 moves by driving a conical head 430.
  • the latter moves in its movement links 440 which in turn propel a firing pin 450, so that it hits the keys allowing their crimping.
  • Such keyed sockets are used in aeronautics to assemble aircraft parts, for example aircraft engine parts.
  • a difficulty that often occurs during such assemblies, is the lack of space that can complicate or even prevent in some cases the introduction of the socket.
  • the diameter of the tool can not exceed a certain size. Consequently, the surface of the plate is limited and the pressure force that also applies to it. It is for this reason that in order to transmit to the striker a sufficient force to crimp the key, it is resorted to the rod system 440 presented above to increase the movement of the plate 420. With this system, for a race ( a displacement) of the plate 420, the striker 450 does not realize a race which is only a fraction of it. Thus, the force available for percussion is reduced, and the crimping of the key can be achieved under appropriate conditions.
  • a first object of the invention is to provide a tooling for installing a key sleeve, adapted to be mounted on a screwdriver, and adapted to be connected to a pneumatic supply; comprising a torque screw transmission device, for screwing the sleeve according to a screw axis when a screwing torque is applied to the device by the screwing tool; and a key percussion device housed in a casing, for crimping the key on the socket when a crimping pressure is applied thereto by the pneumatic supply, of high reliability, and having a small footprint.
  • the crimping pressure instead of being applied to a single surface, can not exceed the sectional area of the tooling , is applied on a set of surfaces (the surfaces of the trays); thanks to this, one can double, triple or increase even more the surface subjected to the crimping pressure and thus, apply to the percussion device a sufficient force so that it can effectively crimp the key or keys.
  • the radial size of the tool is less than if one had a single tray. Thanks to this, the tooling remains relatively compact.
  • generally plateaux of the same dimension are arranged side by side one after the other along the axis of screwing / percussion, perpendicularly thereto.
  • the casing then has for outer perimeter substantially that of the trays.
  • the percussion device consists of fixed parts relative to each other. Indeed the use of multiple trays avoids the use of mechanical gear ratios, such as rods. Thus advantageously the percussion device may consist of fixed parts without moving parts, which allows it to have excellent reliability.
  • the torque transmission device comprises a screw shaft, one end of which is adapted to be rotated by the screwing tool, and another end of which is capable of being connected to a screw adapter.
  • the percussion device comprises a sleeve-shaped part, mounted to slide coaxially around a shaft transmitting the tightening torque, the plates being arranged in the casing around this sleeve-shaped part, at least one of the trays being removable with respect to this sleeve-shaped portion.
  • the shaft naturally forms part of the torque transmission device. It then also serves to guide the percussion device.
  • the design of the percussion device with at least one disassemblable platen of the sleeve-shaped portion makes it possible to replace, if necessary, only the removable platen (s) without the need to replace the entire percussion device.
  • the trays and / or the housing elements are without undercut in the screwing direction, which facilitates their manufacture, including their machining.
  • the casing can thus be constituted by the stack of casing parts without undercut.
  • One can then provide the assembly of its successive elements by screws arranged in the direction of screwing.
  • the screws can simultaneously secure several housing parts, for example four housing parts in the embodiment illustrated by the figures.
  • the tooling comprises means for returning the percussion device, allowing after a percussion to return it to an initial position allowing a new percussion.
  • the return means comprise at least one spring, for example a set of compression springs regularly spaced on the circumference of the housing.
  • At least one air duct arranged in one or more wall (s) of the casing makes it possible to put the trays under air pressure.
  • the air duct is thus formed without adding additional parts, and is protected against shocks during the use of the tool, by the body of the housing itself.
  • a second object of the invention is to provide a screw and key installation kit, comprising a screwdriver and keying tooling, high reliability, and having a fairly small footprint.
  • the kit comprises a tool for placing a key as described above.
  • the screwing tool is adapted to receive the tooling establishment of key sleeve. It can include a trigger to trigger a sudden rise in pressure in the tooling establishment key sleeve and allow crimping the key.
  • the screwing tool 100 is a corner key for screwing all types of screws or other.
  • the screwing tool 100 is supplied by a pneumatic supply (not shown) via a connector 102. It comprises an elongated body 103, containing means for using the supply air pressure so as to output a torque screwing (or unscrewing).
  • the air supply connector 102 is connected to a first end 104 of the tool 100. At the other end 106 of the latter, which forms a right angle, the tool 100 has a connection interface 108 for fixing and driving a screw connector or other tool capable of being mounted on the tool. screwing 100.
  • the screwing tool 100 comprises triggering means (lever 110), making it possible to put the tool 100 under air pressure and thus to cause the screwing.
  • a reversing button 112 is also provided on the screwing tool 100 to switch to unscrewing mode and reverse the direction of rotation if desired.
  • Tooling 10 for installing a keyed sleeve is fixed on the connection interface 108 of the tool 100.
  • This tooling 10 consists mainly of a housing 12 in four parts 12A, 12B, 12C and 12D, a shaft 14, and a percussion device 16.
  • the percussion device 16 comprises a striker 17, two inner plates 18A and 18B, and a bush fitting nose 20 fixed to the end of the striker 17 in the screwing / percussion direction.
  • the percussion device 16 (more precisely, the striker 17) comprises, inside the housing 12, a main portion in the form of a sleeve 22 and a plate 18C.
  • the portion 22 in the form of a sleeve has an internal passage 24 whose diameter is substantially equal to that of the shaft 14 to the game close.
  • the percussion device 16 is slidably mounted on the shaft 14 disposed in the passage 24 of the firing pin 17.
  • the circularly shaped plate 18B is disposed around the sleeve-shaped portion 22 of the firing pin 17.
  • a shoulder 26 is provided thereon for locking the plate 18B on the sleeve-shaped portion 22 and preventing it from moving. in the direction of screwing / percussion A.
  • the plate 18A also of circular shape is disposed around the sleeve-shaped portion 22 on the side of the connection interface 108 with respect to the plate 18B.
  • This plate 18A is extended in the screwing direction by a cylindrical portion 28 which encloses the sleeve-shaped portion 22 and whose end in the screwing direction A rests on the plate 18B, preventing it from going up towards the interface connection 108.
  • connection interface 108 the end 30 of the percussion device 16 directed towards the connection interface 108 is threaded externally, and a nut 31 associated with a washer 34 is screwed onto this end 30 so as to block the stack of the trays 18A, 18B and prevent them from going back to the connector interface 108.
  • the various parts of the percussion device 16 are rigidly connected together, namely in particular the striker 17, the two plates 18A and 18B and the sleeve-fitting nose 20.
  • any system for securing the trays 18A and 18B (and even 18C) to the sleeve portion 22 of the percussion device 16 may also be used in other embodiments of the invention.
  • the housing 12 is composed of four parts 12A-12D, fastened together by a set of screws 38 passing through passages 40 formed in the volume of the housing 12 in the screwing / percussion direction A.
  • the casing is generally cylindrical in shape, the end pieces 12A and 12D forming lids at the ends of the housing.
  • the housing portions 12B and 12C also comprise respectively fixed separation plates 42B and 42C which extend to the sleeve-shaped portion 22 and thus contribute to guiding and maintaining the percussion device 16.
  • the end piece 12A, the separation plates 42B and 42C, and the end piece 12D define and separate inside the housing three chambers 32A, 32B and 32C substantially closed, independent, each having a shape of cylinder section.
  • Each of the trays 18A, 18B and 18C extends in one of the chambers 32A, 32B and 32C, perpendicular to the screwing / percussion direction, and can move in a limited path between an initial position, before percussion, in which the tray is opposite the direction of screwing / percussion, to a final position, after percussion, in which it is in abutment against the wall of the chamber on the side of the direction screwing / percussion (these walls are the trays of separation 42B, 42C and end housing part 12D).
  • the chambers 32A, 32B and 32C are connected to a pressurized air supply line via supply ports 36A, 36B, 36C. With respect to the trays 18A, 18B and 18C, these orifices open on the opposite side to the direction of screwing / percussion A. Thus the air pressure in the chambers 32A-32C, coming from the pipe 35 tends to push the trays 18A, 18B and 18C in the screwing direction.
  • the air supply line 35 is formed in the same volume of the housing wall 12.
  • each of them has at least one opening (here, three openings 37 arranged with angles of 120 °, in view along the axis of screwing).
  • the openings of the chambers 32A-32C are pierced through the wall of the casing 12 and provided to put the chambers 32A-32C in communication with the outside of the casing, when the trays 18A, 18B and 18C are substantially in extreme position in the direction screwing / percussion, after percussion.
  • the openings 37 are obstructed by the trays, which prevents the air from being evacuated by them and the pressure to decrease in the chambers 32A. 32C.
  • the percussion device 16 is finally subjected to the action of a set of helical springs 44 placed in countersinks arranged in the screwing direction A, in the bottom of the casing 12 (part 12D).
  • the action of these springs tends to bring back the percussion device 16 in the direction opposite to the screwing / percussion direction by pushing the plate 18C of the percussion device 16.
  • the striker 17 terminates in a cylindrical portion 23 extending out of the housing 12.
  • This cylindrical portion 23 at the end of the percussion device 16 is guided externally in the percussion movement by the internal passage 33 formed in the end of the housing portion 12D, which is a sleeve-shaped portion 46.
  • the threaded outside of the sleeve portion 46 is fastened to the bushing 20.
  • This laying nose 20, in known manner, comprises a fixed cylindrical body 48, in which is slidably mounted a hammer 50 integral with the striker 17.
  • a screw adapter 52 screwed in a recess 54 of the shaft 14 allows the transmission of the screwing torque of the shaft 14 to the sleeve, during the step of screwing thereof.
  • the tooling 10 is fixed on the screwing tool 100 in the following manner: a ring 56 is screwed into a thread of a countersink formed in the connection interface 108 of the body 103 of the screwing tool 100. 12A housing part is screwed on the ring 56.
  • a driving square of the screwing tool provides the connection with the shaft 14 for transmitting the rotary movement (screwing unscrewing) to the latter.
  • a trigger 60 ( figure 4 ) to put or not under air pressure the supply line 35 and thus to trigger the percussion, is fixed on the housing portion 12A.
  • the sleeve is screwed in a conventional manner using the screw adapter, rotated by the screwing tool 100 via the shaft 14.
  • the keys are then crimped as follows: By pressing the trigger 60, the access of the supply line 35 is opened to the pressurized air supplied by the pneumatic supply.
  • the parts of the chambers 32A, 32B and 32C located on the side opposite the direction of screwing / percussion are almost instantly put under pressure (typically of the order of 6 Bars). Subject to this pressure, the three plates 18A, 18B and 18C are strongly pushed in the direction of screwing / percussion.
  • the plate 18A drives the plate 18B via its cylindrical portion 28, and it causes the portion 22 in the form of a sleeve of the firing pin 17 (thanks to the shoulder 26).
  • the percussion device moves all at once in the screwing / percussion direction, and the hammer 50 crimps the keys around the socket.
  • the openings 37 are disengaged.
  • the pressurized air is evacuated by these openings 37 making return the pressure in the chambers 32A, 32B and 32C to the ambient pressure, and allowing the recovery of the trays 18A, 18B and 18C.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
EP09761911.8A 2008-05-19 2009-05-18 Outillage de mise en place de douille a clavette et kit comprenant celui-ci Active EP2285534B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0853212A FR2931091B1 (fr) 2008-05-19 2008-05-19 Outillage de mise en place de douille a clavette et kit comprenant celui-ci
PCT/FR2009/050922 WO2009150360A1 (fr) 2008-05-19 2009-05-18 Outillage de mise en place de douille a clavette et kit comprenant celui-ci

Publications (2)

Publication Number Publication Date
EP2285534A1 EP2285534A1 (fr) 2011-02-23
EP2285534B1 true EP2285534B1 (fr) 2017-07-05

Family

ID=39938151

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09761911.8A Active EP2285534B1 (fr) 2008-05-19 2009-05-18 Outillage de mise en place de douille a clavette et kit comprenant celui-ci

Country Status (9)

Country Link
US (1) US20110148051A1 (ru)
EP (1) EP2285534B1 (ru)
JP (1) JP2011520636A (ru)
CN (1) CN102036786B (ru)
BR (1) BRPI0913113B1 (ru)
CA (1) CA2724748C (ru)
FR (1) FR2931091B1 (ru)
RU (1) RU2518650C2 (ru)
WO (1) WO2009150360A1 (ru)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
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CN104568296B (zh) * 2014-12-08 2017-08-25 太原航空仪表有限公司 一种孔加压及孔保护的装置
CN106312918B (zh) * 2015-07-09 2018-03-06 上海丞捷机电有限公司 螺栓拧紧器、螺栓拆松器及多螺栓拧紧拆松器
DE102016100933B4 (de) 2016-01-20 2024-04-25 Fairchild Fasteners Europe - Camloc Gmbh Montagewerkzeug, dessen Verwendung und Verfahren zur Befestigung eines Gewindeeinsatzes
US10668606B2 (en) 2017-12-14 2020-06-02 Raytheon Technologies Corporation Key locked insert installation tool
US10882167B2 (en) 2018-09-26 2021-01-05 Toyota Motor Engineering & Manufacturing North America, Inc. Crimping devices including a pistol-grip air hammer and a crimp socket with a sloped key
CN111283620B (zh) * 2020-03-01 2021-01-12 张晓琳 一种可设定扭矩同时可扭转装入四根弹簧的机构
CN114851131B (zh) * 2022-03-31 2024-02-23 呼伦贝尔安泰热电有限责任公司扎兰屯热电厂 一种齿形联轴器转动拆装工具

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Also Published As

Publication number Publication date
EP2285534A1 (fr) 2011-02-23
RU2518650C2 (ru) 2014-06-10
BRPI0913113B1 (pt) 2020-06-02
CA2724748A1 (fr) 2009-12-17
RU2010151974A (ru) 2012-06-27
CN102036786A (zh) 2011-04-27
JP2011520636A (ja) 2011-07-21
CA2724748C (fr) 2016-01-26
WO2009150360A1 (fr) 2009-12-17
FR2931091B1 (fr) 2010-06-11
FR2931091A1 (fr) 2009-11-20
CN102036786B (zh) 2013-02-13
US20110148051A1 (en) 2011-06-23

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