EP0065111B1 - Outil pour poser des rivets borgnes - Google Patents

Outil pour poser des rivets borgnes Download PDF

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Publication number
EP0065111B1
EP0065111B1 EP82103252A EP82103252A EP0065111B1 EP 0065111 B1 EP0065111 B1 EP 0065111B1 EP 82103252 A EP82103252 A EP 82103252A EP 82103252 A EP82103252 A EP 82103252A EP 0065111 B1 EP0065111 B1 EP 0065111B1
Authority
EP
European Patent Office
Prior art keywords
support
spindle
segment
riveting machine
traction
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
EP82103252A
Other languages
German (de)
English (en)
Other versions
EP0065111A1 (fr
Inventor
Rudolf Wasser
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.)
Marto AG
Original Assignee
Marto AG
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 Marto AG filed Critical Marto AG
Priority to AT82103252T priority Critical patent/ATE14087T1/de
Publication of EP0065111A1 publication Critical patent/EP0065111A1/fr
Application granted granted Critical
Publication of EP0065111B1 publication Critical patent/EP0065111B1/fr
Expired legal-status Critical Current

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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
    • B21J15/02—Riveting procedures
    • B21J15/04—Riveting hollow rivets mechanically
    • B21J15/043—Riveting hollow rivets mechanically by pulling a mandrel
    • 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
    • B21J15/26—Drives for riveting machines; Transmission means therefor operated by rotary drive, e.g. by electric motor

Definitions

  • Blind rivets consist of a hollow rivet which has a flange-shaped rivet head at its end and is penetrated by a nail-shaped rivet pin, the upsetting head of which is supported against the other end of the hollow rivet.
  • the shaft of the hollow rivet is inserted through aligned holes in the parts to be joined, usually made of sheet metal, and the rivet pin is pulled out of the latter by means of a tool which is supported on the head of the hollow rivet, the compression head of the rivet pin the free end of the Expands the shaft of the hollow rivet to a second rivet head and in most cases also causes the shaft to be compressed.
  • the shaft of the rivet pin is usually provided with a predetermined breaking point, which yields when the riveting process ends, the compression head and a subsequent stub of the rivet pin remaining in the set rivet.
  • the upsetting head is pulled through the hollow rivet or pulled out of the same.
  • the rivet pin must be pulled over a drawing section to adequately deform the hollow rivet and thus to accomplish the riveting process.
  • the present invention relates to a blind riveting device according to the preamble of claim 1.
  • a blind riveting tool of the type mentioned in the preamble of claim 1 is known from DE-AS 1 627 426.
  • the threaded segment must be pressed into its engagement position by hand, namely before the riveting process, held in this position during the riveting process and retrieved from this position after the riveting process has ended.
  • this is not only a manual, but also a mental burden, since full attention is required to avoid incorrect manipulation.
  • the object of the present invention is to provide a blind riveting device in which the riveting process is carried out completely without manual intervention by the operator.
  • the device only has to be pressed against the objects to be connected to one another in order to start the riveting process, the individual device parts automatically returning to their starting position as soon as the riveting process ends and the rivet pin either torn off or out of the Hollow rivet has been pulled out.
  • the housing of the electric drive motor has a cylindrical extension 1, in which a cylindrical sleeve 2 of the support, which is denoted overall by 3, is guided so as to be longitudinally displaceable. Under the action of a spring 4, the sleeve 2 is supported at 5 with its deposition on a shoulder of the extension 1.
  • the support 3 has a support head 14 in the form of a hollow cone, which is firmly connected to the sleeve 2.
  • the front end of the support head 14 is formed by a guide piece 6 designed in the manner of a cap screw with an axially extending guide channel 7. The latter serves to receive the rivet pin 32, the shaft 33 of which is inserted into the channel 7 from the front and at 34 a predetermined breaking point having.
  • the guide piece 6 is preferably made of magnetic material to give the blind rivet a temporary hold.
  • the cylindrical shaft 8 of an overall drawing piston 9 is guided.
  • This has a conical piston head 10, which rests in the drawn starting position of the drawing piston 9 according to FIG. 1 under the action of a spring 11 on the inner wall of the support head 14, the drawing piston 9 being supported on the support 3.
  • a spring chamber 12 extends through the piston head 10 and ends in the direction of the channel 7 at 13 in an inner cone.
  • clamping jaws 15 are arranged, which together form an extension of the channel 7 and act on the shaft 33 of the rivet pin 32 under the action of a spring 16 and the cone 13 located in the spring chamber.
  • the clamping jaws 15 are supported on the guide piece 6, whereby they are pushed back somewhat against the action of the spring 16, so that the shaft of the rivet pin is not held by the jaws 15.
  • the contact surfaces of the clamping jaws 15 with the guide piece 6 can be concave / convex, so that the clamping jaws can be pushed apart not only axially, but also radially apart. Thanks to these precautions, the shank of the rivet pin can be inserted without further ado, but also - as will be explained later - can be easily pulled out or ejected after the magnetic holding force has been overcome.
  • radial bores 17 play a role, which connect the spring chamber, which is sealed at its rear end by a screw 18, to the cavity 19 (see also FIG. 3) which lies in front of the drawing piston 9. if this is withdrawn from its starting position.
  • the drawing piston 9 has an axial bore 19 in which a slide 20 is guided, which is located at the end of a threaded spindle 21.
  • the thread 22 begins at a distance from the slide 20 and it extends up to an oblique shoulder 23.
  • a threaded nut segment 24 provided with a corresponding internal thread is radially displaceable bar in an inner bore 25 of the shaft 8 of the drawing piston 9.
  • the arrangement is such that, in the illustrated starting position of the parts explained so far (FIG. 1), the threaded segment 24 of the threaded spindle 21 is upstream and radially outwards on the inner surface of the Sleeve 2 supports.
  • the segment 24 is held against a movement radially inwards by means of a locking ball 26, which is under the action of a spring 27.
  • the segment 24 is radially centered so that it can be brought into engagement with the thread of the spindle 21 against the force of the spring 11 when the support 3 is moved.
  • the sleeve 2 has an extension 28.
  • segment 24 comes into the region of this extension, it can be displaced radially outward to such an extent that it disengages the thread of the spindle 21.
  • the longitudinal displaceability of the sleeve 2 is limited by mutually interacting stops 29 and 30 of the support on the one hand and the extension 1 on the other.
  • a wedge arrangement indicated at 31 enables the sleeve 2 or the drawing piston 9 to be displaced, but ensures that these parts cannot start to rotate.
  • a further wedge arrangement 35 prevents the nut segment 24 from rotating about its own axis without preventing its radial displacement.
  • the shaft 33 of the rivet pin 32 is first inserted into the guide channel 7 of the guide piece 6 and then the hollow rivet 37 through holes which are aligned with one another Inserted sheet metal parts 38 and 39 until the rivet head 40 is pressed against the sheet metal part 39 by the guide part 6.
  • the sleeve 2 of the support 3 is pushed into the extension 1 as far as the stops 29 and 30 allow.
  • the thread segment 24 of the support 3 comes into engagement - as can be seen in FIG.
  • the spindle 21 is equipped with a saw thread, the thread flanks essentially perpendicular to the axis facing the drive motor, so that no or no substantial radial force component acts on the segment 24.
  • the spring 11 can push the drawing piston 9 back into the support 3 until the piston head 10 rests on the support head 14.
  • the tool will hardly continue to be pressed against the sheet metal parts 38/39, especially since the spring 4 tries to push the sleeve 2 of the support out of the extension 1.
  • the support thus reaches its starting position shown in FIG. 1 before the drawing piston 9 is uncoupled from the spindle 21 under the action of the inclined surface 23. This leads to a further increase in the cavity 19 which arises in front of the piston head 10 of the drawing piston when it is withdrawn.
  • the blind rivet is set in the manner described above and the rest of the rivet pin or the rivet pin is ejected after the riveting process.
  • the extension 28 ends in an inclined shoulder 43, the threaded segment 24 having a corresponding bevel 25. This will the threaded segment is pushed back into its detent position determined by the ball 26 when the drawing piston 9 is returned to its starting position by the spring 11.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Insertion Pins And Rivets (AREA)
  • Dowels (AREA)
  • Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
  • Adornments (AREA)
  • Connection Of Plates (AREA)

Claims (13)

1. Appareil de pose de rivets aveugles comportant un support (3) reposant sur le rivet creux et une partie de traction (9) s'accrochant au moyen de mâchoires de serrage (15) sur la broche de rivet (32) pourvue d'une tête de refoulement, partie de traction qui est guidée en rappel sur une course de traction à partir de sa position initiale d'appui contre le support (3) et qui comporte un segment fileté (24) mobile radialement dans le support et pouvant être accouplé et désaccouplé vis-à-vis d'une tige (21 ) entraînée en rotation, la partie de traction (9) pouvant être entraînée par un moteur pour la course de traction et le segment fileté (24) pouvant être désaccouplé automatiquement de la tige (21 ) à la fin du mouvement de rappel, caractérisé en ce que, dans la position initiale de la partie de traction (9), le segment fileté (24) est placé en avant et espacé axialement de la tige (21, 22) et est ainsi désaccouplé de la tige (22) (fig. 1), en ce que le support et la tige (21, 22) sont déplaçables axialement l'un vers l'autre jusque dans une position de butée (29, 30) où ils s'appuient l'un contre l'autre (fig. 2) et dans laquelle le segment fileté (24) est accouplé automatiquement et engrène avec la tige (21, 22), et en ce que le segment fileté (24) est obligatoirement bloqué radialement dans la position initiale dans la zone de la course de traction au moyen d'une glissière de verrouillage (2).
2. Appareil de pose de rivets aveugles selon la revendication 1, caractérisé en ce que la glissière (2) comporte une partie extrême inclinée (43).
3. Appareil de pose de rivets aveugles selon la revendication 2, caractérisé en ce que la glissière (2) est prévu sur le support (3).
4. Appareil de pose de rivets aveugles selon la revendication 3, caractérisé en ce que la partie de traction est guidé sur le support (3).
5. Appareil de pose de rivets aveugles selon la revendication 4, caractérisé en ce que la partie de traction (19) est guidé dans un trou de support (3), le segment (24) s'appuyant contre la paroi intérieure du trou.
6. Appareil de pose de rivets aveugles selon la revendication 5, caractérisé en ce que le trou du support (3) comporte à la suite de la course de traction un élargissement (28).
7. Appareil de pose de rivets aveugles selon la revendication 6, caractérisé en ce que l'élargissement (28) est relié au trou du support (3) par une surface inclinée (43).
8. Appareil de pose de rivets aveugles selon une des revendications 1 à 7, caractérisé en ce que le support (3) et la partie de traction (9) sont respectivement maintenus dans leur position initiale sous l'action d'un ressort (4, 11).
9. Appareil de pose de rivets aveugles selon la revendication 8, caractérisé en ce que les mâchoires de serrage (15) s'appuient contre le support (3) dans la position initiale de la partie de traction (9) et sont ainsi refoulées dans leur position d'ouverture.
10. Appareil de pose de rivets aveugles selon la revendication 8 ou 9, caractérisé en ce que la tige (21) comporte un filetage pourvu d'un flanc raide agissant lors de la traction, un épaulement incliné (23) étant prévu à la suite du filetage pour le refoulement du segment (24).
11. Appareil de pose de rivets aveugles selon-la- revendication 10, caractérisé en ce que la tige (21) est guidée au moyen d'un coulisseau (20) disposé à son extrémité dans un trou (19) de la partie de traction.
12. Appareil de pose de rivets aveugles selon la revendication 11, caractérisé en ce que, dans la position initiale de la partie de traction (9), le segment (24) guidé dans un trou radial (25) de celle-ci, se trouve entre le coulisseau (20) et le filetage (22) de la tige (21).
13. Appareil de pose de rivets aveugles selon la revendication 12, caractérisé en ce que le segment (24) est maintenu dans le trou (25) au moyen d'une bille d'arrêt (26).
EP82103252A 1981-05-15 1982-04-17 Outil pour poser des rivets borgnes Expired EP0065111B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82103252T ATE14087T1 (de) 1981-05-15 1982-04-17 Blindnietgeraet.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3184/81 1981-05-15
CH3184/81A CH650955A5 (de) 1981-05-15 1981-05-15 Blindnietgeraet.

Publications (2)

Publication Number Publication Date
EP0065111A1 EP0065111A1 (fr) 1982-11-24
EP0065111B1 true EP0065111B1 (fr) 1985-07-03

Family

ID=4250448

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82103252A Expired EP0065111B1 (fr) 1981-05-15 1982-04-17 Outil pour poser des rivets borgnes

Country Status (5)

Country Link
EP (1) EP0065111B1 (fr)
AT (1) ATE14087T1 (fr)
CH (1) CH650955A5 (fr)
DE (1) DE3264536D1 (fr)
ES (1) ES512178A0 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4815193A (en) * 1988-02-22 1989-03-28 Cherry Division Of Textron, Inc. Rivet installation tool and method of installing rivets
GB8906231D0 (en) * 1989-03-17 1989-05-04 Avdel Systems Ltd Pull-through blind fastener installation apparatus and method
DE4008829A1 (de) * 1990-03-20 1991-09-26 Wuerth Adolf Gmbh & Co Kg Werkzeug zum setzen von spreiznieten
ES2304318B1 (es) * 2007-03-29 2009-07-29 Andres Perez Aniento Remachador de impacto.
CN108994244B (zh) * 2018-08-30 2020-03-06 王恩能 一种便携式电动铆钉装配辅助机械
CN110814259B (zh) * 2019-10-21 2021-03-30 浙江万里学院 一种冲击力可控自动化气动锤铆装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3095106A (en) * 1961-12-28 1963-06-25 United Shoe Machinery Corp Automatic rivet setting tools
DE1627426B1 (de) * 1967-04-26 1970-10-29 Helfer & Co Kg Nietwerkzeug für Dorn-Blindniete
US3774437A (en) * 1972-03-02 1973-11-27 D Young Rivet setting apparatus with axially movable collar
US4063443A (en) * 1976-11-05 1977-12-20 H. K. Porter Company, Inc. Rod gripping tool for applying fasteners

Also Published As

Publication number Publication date
ES8305228A1 (es) 1983-04-01
EP0065111A1 (fr) 1982-11-24
ES512178A0 (es) 1983-04-01
DE3264536D1 (en) 1985-08-08
CH650955A5 (de) 1985-08-30
ATE14087T1 (de) 1985-07-15

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