EP0072713B1 - Vorrichtung zum Lösen von Schraubnieten - Google Patents

Vorrichtung zum Lösen von Schraubnieten Download PDF

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Publication number
EP0072713B1
EP0072713B1 EP82401003A EP82401003A EP0072713B1 EP 0072713 B1 EP0072713 B1 EP 0072713B1 EP 82401003 A EP82401003 A EP 82401003A EP 82401003 A EP82401003 A EP 82401003A EP 0072713 B1 EP0072713 B1 EP 0072713B1
Authority
EP
European Patent Office
Prior art keywords
motor
pin
clamp
chamber
jack
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.)
Expired
Application number
EP82401003A
Other languages
English (en)
French (fr)
Other versions
EP0072713A2 (de
EP0072713A3 (en
Inventor
Jean-Pierre Gaquere
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 Group SAS
Original Assignee
Airbus Group 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 Group SAS filed Critical Airbus Group SAS
Priority to AT82401003T priority Critical patent/ATE19366T1/de
Publication of EP0072713A2 publication Critical patent/EP0072713A2/de
Publication of EP0072713A3 publication Critical patent/EP0072713A3/fr
Application granted granted Critical
Publication of EP0072713B1 publication Critical patent/EP0072713B1/de
Expired legal-status Critical Current

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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
    • B25B31/00—Hand tools for applying fasteners
    • B25B31/005—Hand tools for applying fasteners for temporarily connecting sheets before or during assembly operations
    • 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
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53687—Means to assemble or disassemble by rotation of work part
    • 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
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53709—Overedge assembling means
    • Y10T29/53717—Annular work
    • Y10T29/53726—Annular work with second workpiece inside annular work one workpiece moved to shape the other
    • Y10T29/5373—Annular 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
    • Y10T29/53739—Pneumatic- or fluid-actuated tool
    • 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
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53796—Puller or pusher means, contained force multiplying operator
    • Y10T29/5383—Puller or pusher means, contained force multiplying operator having fluid operator

Definitions

  • the present invention provides an automatic device for unscrewing and depositing a pinning screw clip, which does not have any of the aforementioned drawbacks.
  • a first advantage of the device according to the invention lies in its simplicity of implementation as a hand pneumatic unscrewer nose used in most cases in the aeronautical field.
  • a second advantage consists in that this nose is also adaptable to the arms of the robots which can be, moreover, the same as those which pierce the staple holes and which lay the rivets for final fixing.
  • a third advantage consists in that this nose is of reduced size, thus allowing access to the staples placed in the areas of high density.
  • the body of the staple could also be held and immobilized by a hexagonal conformation of the body, which meant that the nose of the screwdriver could then comprise two rotating tubes coaxially and each terminated by a hexagonal imprint; the inner tube for the nut and the outer tube for the body of said clip.
  • pneumatic screwdrivers were going to benefit from a significant improvement consisting in putting the engine in stalling by screwing or unscrewing as soon as the appearance of a predetermined torque, which had the advantage of considerably reducing air consumption without damaging the equipment.
  • a screw pinning clip essentially comprises on the one hand, a hollow body 1 which may be made of plastic and which is integral with a spacer 1 'situated between the clamps 2 'and 2 "secured to a screw 2, and on the other hand to a spring 3 and a nut 4 engaged on the screw 2 and which acts against said spring 3.
  • the usual pneumatic system moreover comprises a body 5 receiving the motor (not shown) which drives in rotation an inner tube 6 provided with a hexagon at its end while two other tubes, one of which is external marked 7 and finished in its end by a hexagon is fixed by its connection to 5 and, the other, marked 8 and which is intermediate is also terminated at its end by an imprint also hexagonal.
  • the staple is in place and is locked when the tube 8 has turned 1/12 of a turn so that the the hexagon footprint plates of 8 are located under the points of the hexagon in the hexagonal part of the clip.
  • the clip thus grasped and locked is introduced into the hole of the assembly consisting of the sheets 9 and 10 and of the interposition product 11.
  • the nut 4 is screwed to a preset torque so that the pliers 2 ' and 2 ", moving away, come to hang on the face opposite of the assembly thus producing under the effect of the spring 3 the approach of the sheets 9 and 10 towards each other.
  • the nose can then be evacuated after rotation of 1/12 of a turn of the tube 8 relative to the tube 7.
  • the nose is replaced on the clip to lead, after proper unscrewing of the nut 4, to the complete extraction of the latter.
  • FIG. 4 is well representative of the problems encountered prior to the application of the invention insofar as the excess of product 12 was lodged in the hole even as a result of the pressurization of the sheets, thereby making it extremely difficult to extract the clip from its hole.
  • the unscrewing and extraction nose comprises, as will be explained below, a part bearing on the assembly while a jack comes to evacuate the clip from its hole as soon as the unscrewing phase of the nut.
  • Such a nose essentially comprises, as can be seen from FIG. 5, a motor part, a bushing part and a piston part.
  • the motor part is known per se, and can result either from an adaptation in hand pistol conformation, or from a more advanced conformation in an automated station in robotic applications.
  • the air motor begins by driving the bush 13 in rotation via the axis 14 and the reference motor 15.
  • This socket 13 is screwed by a thread 13 'not to the left, in another socket 16 which can rotate angularly by 30 ° to lock or unlock under the effect of friction in the screw threads and by the fact of light made in part 16 as shown in detail in FIG. 6.
  • the socket 16 is moreover immobilized in translation, as shown in Figure 7, by the axis screw 17 which allows only its single rotation of 30 °.
  • Locking takes place under the effect of the rotation of the sleeve 16 in front of the lock 18 which is itself immobilized in rotation relative to the external body 19 by means of the screw 20 which also subjects it in translation relative to the socket 16.
  • the body 19 is also immobilized in rotation on the piston 21 via the axis of the stop ring 22.
  • the piston 21 is immobilized in rotation relative to the inner cylinder guide 23 by the pin screw 17.
  • the sleeve 13 advances axially in the sleeve 16 by the fact of the presence of the left-hand thread 13 'and this, until the screw 24 comes to abut at the end of the axial light 24' made in part 15 which causes the engine to stall.
  • the sleeve 13 causes in its axial displacement, the axis 14 which then pushes on the screw of the staple marked 2.
  • said socket 13 comprising a ring 13 "with internal hexagonal imprint and having a thread in the socket 16 which is not less than the pitch of the nut 4 of the clip, advances faster than recedes said nut 4 and that, as a result, the spring 25 is then compressed under the effect of said ring 13 'which ejects, during unlocking, the clip from the nose of the screwdriver.
  • the engine part comprises two conduits, one 26 communicating the pressure of the PM motor towards the differential marked 28 in FIG. 8, the other marked 27 bringing the pressure of said differential 28 to the jack by the chamber 21 '.
  • the pressure having increased on the motor side PM, and the control pressure PT being fixed, allows the differential 28 to let air pass through the duct 27 to the chamber 21 'of the O-ring cylinder 32 and 33.
  • the piston 21 thus actuated pushes on the external body 19 which consecutively moves the clip away from the surface of the assembly formed by the sheets 9 and 10.
  • the socket 16 which carries an internal hexagon at its end, can rotate 30 ° (or 1/12 of a turn) in front of the other hexagon ring or latch 18 thanks to the presence of the screw axis 20, as shown in detail in FIG. 6.
  • the sleeve 13 moves back until the axis 14 comes up against the driver 15 from which the stalling of the motor results, which means that the stapler is in the rear position and ready to extract the next clip.
  • the differential 28 according to FIG. 8 has a flexible membrane 39 defining two chambers: one 40 PM pressure inlet, by the engine return conduit by conduit 26, and returning to the cylinder by conduit 27, the other 41 receiving the pressure witness PT arriving by conduit 42 and which may possibly be adjusted by the needle screw 42 '.
  • the differential 28 can be fixed as desired, either on the lower part of the stock 36 of an air pistol of the usual type (as is more particularly shown in FIG. 9), or on a robot head known per se 43 (not shown further in this description).
  • the operator apprehends in the usual way the stick 36 provided at its end with the pressure differential 28 while this differential is itself connected to the air intakes by the conduits 26 (PM ) and 27 (PV) passing through the trigger guard 44 further constituting physical protection of the operator's hand.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manipulator (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Threshing Machine Elements (AREA)
  • Screw Conveyors (AREA)
  • Surgical Instruments (AREA)
  • Fertilizers (AREA)
  • Automatic Assembly (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)

Claims (5)

1. Vorrichtung zum Anbringen und Lösen eines Schraubniets, der einen sechseckigen Körper (1) besitzt, der eine Schraube (2), eine auf diese Schraube aufgesetzte Mutter (4) und eine zwischen Körper und Mutter eingesetzte Feder (3) enthält, bezüglich einer Verbindung, von der Art, die besteht aus:
- einem pneumatischen Motor in einem Motorkörper (36-43) mit einem Bewegungsabnahmeorgan (15) für eine Antriebsachse (14) und
- einer Spitze (5), die in einer Muffe (30) zur Verbindung mit dem Körper des Motors
eine Ein- und Ausschraubbuchse (13), die durch die Antriebsachse (14) angetrieben wird und eine sechseckige Vertiefung zur Aufnahme der Mutter des Schraubniets besitzt,
einen Riegel (18) mit einer sechseckigen Vertiefung für die Blockierung des Körpers des Schraubniets bezüglich Drehung und
- eine Verriegelungsbuchse (16) besitzt, die mit einer sechseckigen Vertiefung für die axiale Verriegelung des Schraubnietkörpers versehen ist und bezüglich geradliniger Bewegung mit dem Riegel durch Achsenschrauben (20) gekoppelt ist, die von radialen Öffnungen aufgenommen sind, die eine relative Drehung von 30° zwischen Anordnungen gestatten, in denen die Vertiefungen des Riegels und der Verriegelungsbuchse in Deckung sind oder nicht, wobei diese Vorrichtung zum Anbringen und Lösen von Schraubnieten dadurch gekennzeichnet ist,
- dass die Ein- und Ausschraubbuchse (13) mit der Verriegelungsbuchse (16) durch Reibung längs eines Linksgewindes (13') zusammenarbeitet, axial mit ihrer Antriebsachse (14) gegenüher dem Bewegungsabnahmeorgan (15) gleiten kann und einen Ring (13") enthält, der eine sechseckige Vertiefung für die Aufnahme der Mutter des Schraubniets enthält und axial entgegen einer Feder (25) verschiebbar montiert ist,
dass die Spitze (5) einen äusseren Körper (19) besitzt, mit dem der Riegel (18) bezüglich Drehung durch Achsenschrauben (20) befestigt ist, der axial auf der Verriegelungsbuchse (16) unter der Wirkung eines Arbeitszylinders oder Kolbens (21) gleitet, der an dem äusseren Körper (19) durch einen Blockierring (22) befestigt ist, wobei dieser Kolben, auf den eine Rückholfeder (34) einwirkt, bezüglich geradliniger Bewegung in einer Kammer (21') der Muffe durch eine innere Führung (23) mit Hilfe von Achsenschrauben (17) geführt ist, diese innere Führung und diese Achsenschrauben ausserdem die Verriegelungsbuchse bezüglich Drehung führen und dieser äussere Körper ausserdem einen Schutzring (35) für den Kontakt mit der Verbindung (9-10) trägt, dass der pneumatische Motor ohne Luftunterbrechung bei axialem In-Anschlag-Kommen von Sperrschrauben (24) stehen bleiben kann und mit einer pneumatischen Differentialvorrichtung verbunden ist, die ein Differential aufweist, das eine Membran (39) trägt, die eine erste Kammer (40), in die eine Motordruckleitung (26) und eine Zylindersteuerungsleitung (27) mündet, und eine zweite Kammer (41) abgrenzt, in die eine Leitung (42) des Vergleichsdrucks des Motors mündet, der gegebenenfalls durch eine Regulierschraube (42') regulierbar ist, die eine Einrichtung zur Verbindung des Differentials mit dem Körper des Motors durchquert,
dass die Ausbildung des Motors, der Spitze und der pneumatischen Differentialvorrichtung so gewählt ist, dass, wenn der Motor sich zur Ausschraubung dreht, die Ein- und Ausschraubbuchse (13) sich in der Verriegelungsbuchse (16) dreht, indem sie diese bezüglich Drehung durch Reibung auf 30° mitnimmt, um den Schraubniet zu verriegeln, und indem sie sich so vorbewegt, dass sie auf den Schaft des Schraubniets drückt und die Mutter von diesem abschraubt, und das anschliessend nach Stehenbleiben des Motors das Differential die Kammer (21') des Arbeitszylinders speist und den Auszug des Schraubniets bewirkt, während, wenn der Motor sich zur Einschraubung dreht, das Differential aufhört, den Arbeitszylinder zu speisen, dessen Kolben durch die Rückholfeder (34) nach hinten zurückgebracht wird, und die Drehung der Ein- und Ausschraubbuchse (13) durch Reibung längs des Linksgewindes (13') eine Entriegelung des Schraubniets und die Rückkehr der einzelnen Bauteile in ihre ursprünglichen Stellungen bewirkt.
2. Vorrichtung zum Lösen von Schraubnieten nach Anspruch 1, dadurch gekennzeichnet, dass Leitungen gewährleisten:
- die Zufuhr (26) des Motordrucks (PM) zur Steuerung, abgenommen in der Höhe des Eingangs des Motors (36-43) bei Ausschraubdrehung,
- die Zufuhr (27) der Luft zu dem Arbeitszylinder, abgenommen in der Höhe des Differentials (28),
- die Zufuhr (42) des Vergleichsdrucks (PT) in die Kammer (41) des Differentials (28),

wobei die Aufgabe dieser Zuführungen ist, zu gestatten, dass:
- bei Ausschraubdrehung des Motors:
der Vergleichsdruck (PT) in der Kammer (41) konstant geregelt ist,
der Motordruck (PM) in der Motordruckkammer (40) kleiner als (PT) ist, so dass keine Speisung des Arbeitszylinders (21) stattfindet,
- bei Stehenbleiben des Motors bei der Ausschraubung:
der Vergleichsdruck (PT) in der Kammer (41) konstant ist,
der Motordruck (PM) in der Motordruckkammer (40) grösser als (PT) ist, woraus sich eine Speisung des Arbeitszylinders ergibt,
- bei Einschraubdrehung des Motors:
der Vergleichsdruck (PT) in der Kammer (41) konstant ist,
der Motordruck (PM) in der Motordruckkammer (40) Null ist, wobei die Druckabnahme auf der Speisung des Motors für die Ausschraubung liegt, so dass keine Speisung des Arbeitszylinders stattfindet,
- bei Stehenbleiben des Motors bei der Einschraubung:
der Vergleichsdruck (PT) in der Kammer (41) konstant ist,
der Motordruck (PM) Null ist, so dass keine Speisung des Arbeitszylinders stattfindet.
3. Vorrichtung zum Lösen von Schraubnieten nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, dass der Motor, die Spitze und die pneumatische Differentialvorrichtung eine tragbare Maschine mit Revolvergriff und Drücker bilden, während die Leitungen für den Motordruck und die Speisung des Arbeitszylinders in einem Abzugsbügel angeordnet sind, der ausserdem den mechanischen Schutz der Hand der Bedienungsperson gewährleistet.
4. Vorrichtung zum Lösen von Schraubnieten nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, dass der Motor, die Spitze, die pneumatische Differentialvorrichtung und die Leitungen eine Einheit bilden, die von einem Roboterarm getragen wird.
5. Vorrichtung zum Lösen von Schraubnieten nach Anspruch 1, dadurch gekennzeichnet, dass der Arbeitszylinder eine ringförmige Ausbildung hat, wobei er den rotierenden Teil der Spitze umgibt.
EP82401003A 1981-08-13 1982-06-02 Vorrichtung zum Lösen von Schraubnieten Expired EP0072713B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82401003T ATE19366T1 (de) 1981-08-13 1982-06-02 Vorrichtung zum loesen von schraubnieten.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8115683 1981-08-13
FR8115683A FR2511288A1 (fr) 1981-08-13 1981-08-13 Desagrafeuse d'agrafe d'epinglage a vis

Publications (3)

Publication Number Publication Date
EP0072713A2 EP0072713A2 (de) 1983-02-23
EP0072713A3 EP0072713A3 (en) 1983-03-09
EP0072713B1 true EP0072713B1 (de) 1986-04-23

Family

ID=9261454

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82401003A Expired EP0072713B1 (de) 1981-08-13 1982-06-02 Vorrichtung zum Lösen von Schraubnieten

Country Status (8)

Country Link
US (1) US4459728A (de)
EP (1) EP0072713B1 (de)
JP (1) JPS5840275A (de)
AT (1) ATE19366T1 (de)
CA (1) CA1192027A (de)
DE (1) DE3270737D1 (de)
ES (1) ES8306630A1 (de)
FR (1) FR2511288A1 (de)

Cited By (1)

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CN109138843A (zh) * 2018-09-14 2019-01-04 河源富马硬质合金股份有限公司 高强韧硬质合金冲击钻片

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FR2521478A1 (fr) * 1982-02-17 1983-08-19 Aerospatiale Dispositif de pose automatique des systemes d'assemblage
US5159743A (en) * 1989-05-08 1992-11-03 Posi Lock Puller, Inc. Hydraulic puller
FR2648381B1 (fr) * 1989-05-24 1994-09-02 Aerospatiale Outil pour le montage et le demontage d'agrafes d'epinglage
JPH0628223Y2 (ja) * 1989-06-14 1994-08-03 大日本スクリーン製造株式会社 回転塗布装置
FR2664524B1 (fr) * 1990-07-13 1995-08-11 Aerospatiale Outil pour la pose d'agrafes d'epinglage.
US6216326B1 (en) * 1998-09-28 2001-04-17 Ronald A. Ritter Tube pulling apparatus
US8353091B2 (en) * 2004-08-02 2013-01-15 Global Pathogen Solutions, Inc. Stun gun dart active retrieval system
FR3002992A1 (fr) * 2013-03-08 2014-09-12 Bernard Amalric Agrafe d epinglage avec corps constitue de plusieurs troncons angulaires cylindriques identiques
US10639775B2 (en) 2017-09-29 2020-05-05 Newpark Mats & Integrated Services Llc Systems, apparatus and methods for manipulating a ground cover attachment pin
CN108326793B (zh) * 2018-03-26 2023-12-05 哈尔滨汽轮机厂有限责任公司 一种燃气-蒸汽联合循环汽轮机隔板圆柱销拆卸装置及方法
FR3080155B1 (fr) * 2018-04-17 2020-05-15 Lisi Aerospace Fixation temporaire de structures
CN109570963B (zh) * 2018-10-18 2020-06-30 上海中联重科桩工机械有限公司 销轴插拔装置
US11466719B2 (en) * 2019-12-20 2022-10-11 Spirit Aerosystems, Inc. Cap for temporary fastener
FR3106077B1 (fr) * 2020-01-13 2022-04-01 Lisi Aerospace Agrafe d’épinglage à pince alignée
CN119526333B (zh) * 2024-12-02 2025-11-21 沈阳飞机工业（集团）有限公司 用于航空hb-02-a型开口销的打制方法和打制专用工具

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FR941581A (fr) * 1942-12-17 1949-01-14 Perfectionnements aux dispositifs d'épinglage des tôles
US2789619A (en) * 1954-05-27 1957-04-23 Hi Shear Rivet Tool Company Fluid actuated pulling and rotating tool
US3162072A (en) * 1963-06-10 1964-12-22 Wedgelock Corp Of California Nut runner attachment
US3331268A (en) * 1965-04-19 1967-07-18 Monogram Ind Inc Clamp actuating tool
FR1491450A (fr) * 1966-06-28 1967-08-11 Perfectionnements apportés aux mandrins de vissage ou de dévissage, notamment pour la pose et la dépose d'agrafes de tôles
US3654792A (en) * 1969-07-25 1972-04-11 Briles Mfg Apparatus and method for installing blind fasteners
US3786550A (en) * 1972-10-05 1974-01-22 S Jones Fastener applying tool

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109138843A (zh) * 2018-09-14 2019-01-04 河源富马硬质合金股份有限公司 高强韧硬质合金冲击钻片
CN109138843B (zh) * 2018-09-14 2020-08-04 河源富马硬质合金股份有限公司 高强韧硬质合金冲击钻片

Also Published As

Publication number Publication date
JPS5840275A (ja) 1983-03-09
EP0072713A2 (de) 1983-02-23
ATE19366T1 (de) 1986-05-15
DE3270737D1 (en) 1986-05-28
US4459728A (en) 1984-07-17
FR2511288B1 (de) 1983-12-16
CA1192027A (en) 1985-08-20
EP0072713A3 (en) 1983-03-09
ES514952A0 (es) 1983-06-01
FR2511288A1 (fr) 1983-02-18
ES8306630A1 (es) 1983-06-01

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