EP0067272B1 - Appareil à riveter - Google Patents

Appareil à riveter Download PDF

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Publication number
EP0067272B1
EP0067272B1 EP19820101576 EP82101576A EP0067272B1 EP 0067272 B1 EP0067272 B1 EP 0067272B1 EP 19820101576 EP19820101576 EP 19820101576 EP 82101576 A EP82101576 A EP 82101576A EP 0067272 B1 EP0067272 B1 EP 0067272B1
Authority
EP
European Patent Office
Prior art keywords
piston
control
bore
work
hold
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
EP19820101576
Other languages
German (de)
English (en)
Other versions
EP0067272A3 (en
EP0067272A2 (fr
Inventor
Karl Kinkel
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.)
Cessione magra - Industrie
Original Assignee
Mannesmann 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 Mannesmann AG filed Critical Mannesmann AG
Publication of EP0067272A2 publication Critical patent/EP0067272A2/fr
Publication of EP0067272A3 publication Critical patent/EP0067272A3/de
Application granted granted Critical
Publication of EP0067272B1 publication Critical patent/EP0067272B1/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
    • B21J15/10—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

Definitions

  • the invention relates to a riveting device with a working cylinder and a working piston axially displaceable therein by a pressure medium with a plunger guided in a hold-down device, the working piston being acted upon on both sides by changing the position of a control valve by a pressure medium and during the riveting on the side opposite the riveting device riveting parts abuts a counterholder with rivet feeder, and a control piston, which is connected via a measuring line to the rivet feeder for rivets of different lengths.
  • Such riveting devices are e.g. known from DE-A-18 03 479 and have the disadvantage that they always have to be converted when using rivets of different lengths. This is particularly disadvantageous in aircraft construction, where the material thicknesses and thus the rivet lengths are already different in the area of certain assemblies.
  • the object of the invention is therefore to design a riveting device so that rivets of different lengths can be used with it without special conversion measures. This object is achieved with the features of claim 1.
  • the control piston When working, the control piston is first acted on and pushes the hold-down device connected to it down to the parts to be riveted. With this displacement of the hold-down device from its rest position, the material thickness is measured and the length of the rivet to be used is determined. The determined dimension for the rivet length is communicated to the rivet feed device, which selects the necessary rivet and inserts it into the prepared bore, where it is then provided with a closing head by the plunger by pressurizing the control piston.
  • the features of claim 2 serve the actual riveting process, while the features of claim 3 are necessary for retracting the working piston, the features of claim 4 permitting the necessary retraction of the control piston.
  • Claim 5 relates to the expedient arrangement of the hold-down device and the measuring ruler connected to it for determining the rivet length.
  • Claims 6 and 7 relate to the fastening of the measuring ruler to the control piston and the measuring spring according to claim 8 ensures the faultless return of the measuring ruler to the starting position so that the following operation can be initiated to determine the rivet length.
  • the measures according to claim 9 relate to the known connections between the pressure chambers via valves to the pump or to the tank.
  • the working cylinder 1 is connected via a counter pressure bracket 14 to a rivet feed device 15 above the laminated core 11.
  • the pump 32 conveys the pressure medium from the tank 31 through the pressure medium line 30, the control valve 27 and through the return line 24 into the annular space 17, where it acts upon the annular surface 2d of the working piston 2 to hold it in the position shown on the piston stop le.
  • the control spring 9 presses the control piston 4 with its stop pin 4e against the bore bottom 1g and holds it in the position shown.
  • the pressure medium also flowed from the bottom of the bore 1g through the rivet line 26 and the measuring valve 28 into the pressure medium line 29 leading to the tank 31.
  • the measuring valve 28 is switched over and the pressure medium is passed through the rivet measuring line 26 into the bore bottom 1g.
  • the control piston 4 displaces the measuring ruler 7 against the pressure of the measuring spring 8 and the control spring 9 relative to the piston head 2a and causes the holding-down device 6, which is guided in a holding-down hole 1a of the working cylinder 1, to be placed on the underside of the laminated core 11.
  • the path traveled, i.e. the thickness of the laminated core 11 is determined on the measuring ruler 7.
  • the corresponding rivet 10 is inserted into its prepared bore via the rivet feed device 15 and held there by the counter-holder 12 during the riveting.
  • the pressure medium delivered by the pump 32 passes through the rivet pressure line 25 into the annular space 18 and from there through the channel 23 into the annular space 20, which is enlarged and thus after the first movement of the working piston 2 through the annular space 20a has a large area for loading the working piston 2.
  • This causes the plunger 3 to be displaced in a plunger bore 6a of the hold-down 6 to form the rivet 10 and thus forms the closing head 13.
  • the working piston 2 only moves forward with the plunger 3 as far as the control piston 4 has advanced with the hold-down 6, i.e. the distance 34 is restored and thus determines the closing head height 33 of the rivet 20 regardless of the thickness of the laminated core 11.
  • the return of the working piston 2 is initiated by switching the measuring valve 28 into the switching position shown.
  • the pressure medium from the space below the annular piston 4d flows through the rivet measuring line 26 and the measuring valve 28 and through the pressure medium line 29 into the tank 31.
  • the control piston 4 is moved downward by the control spring 9.
  • the hold-down device 6 is followed by one Slot 1b of the working cylinder 1 measuring ruler 7 by means of the measuring spring 8 guided in the spring slot 2b.
  • the pressure oil from the space 20 / 20a flows through the channel 22 into the annular space 19 and the channel 21 into the annular space 17 and from there through the return line 24 and the converted control valve 27 through the pressure medium line 29 into the tank 31.
  • the return piston 2 then follows with its plunger 3 until the starting position shown is reached.
  • the control valve 27 is then switched back to the starting position.
  • the annular surfaces 4a of the control piston 4 are connected to one another via a shaft 4b.
  • the piston 4d provided on the shaft shoulder 4c is guided in a control piston bore 1f of the working cylinder 1 and bears against the base 1g thereof with a stop pin 4e.
  • the measuring ruler 7 has a depression 7a and a through hole 7b for a head 5a and a shaft 5b of a cylinder screw for fastening on the control piston 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automatic Assembly (AREA)
  • Insertion Pins And Rivets (AREA)
  • Forging (AREA)

Claims (10)

1. Dispositif de rivetage, comportant un cylindre de travail (1) et, coulissant axialement dans celui-ci sous l'action d'un agent de pression, un piston moteur (2) actionnant une bouterolle (3) guidée dans un serre-flan (6), le piston moteur (2) pouvant être sollicité par un agent de pression des deux côtés en modifiant la position d'une soupape de commande (27), et s'appliquant, lors du rivetage sur la face des éléments (11) à river située à l'opposé du dispositif de rivetage, contre une contre-bouterolle (15) des rivets, et comportant également un piston de commande (4) qui est relié par l'intermédiaire d'une conduite de commande (26) au dispositif d'amenée (15) des rivets, pour des rivets (10) de différentes longueurs, dispositif de rivetage caractérisé en ce que:
1-1 il est prévu un alésage de commande (2e) dans le piston moteur (2),
1-2 le piston de commande (4) est monté dans l'alésage de commande (2e),
1-3 pa piston de commande (4) est relié au serre-flan (6),
1-4 le serre-flan (6), constitué sous forme de cylindre creux, entoure le piston moteur (2),
1-5, le piston de commande (4) et le serre-flan (6) sont guidés dans l'alésage de commande (2e) et l'alésage (1a) du serre-flan respectivement, de façon à pouvoir coulisser axialement, jusqu'à ce que le serre-flan (6) s'applique contre les éléments (11) à assembler.
2. Dispositif de rivetage selon la revendication 1, caractérisé en ce que le piston de commande (4) est guidé dans un alésage de commande (2e) du piston moteur (26 et comporte entre deux surfaces annulaires (4a) une tige (4b), et en ce que la chambre annulaire (19) entourant la tige (4b) forme une liaison allant d'une chambre sous pression (20), sollicitant le piston moteur (2) en direction de la pression, par l'intermédiaire d'un canal (22), d'une part, à une chambre annulaire
(17) sollicitant une surface annulaire (2d) du piston moteur (2) en direction du retour, par l'intermédiaire d'un canal (21) et, d'autre part, par l'intermédiaire de cette chambre annulaire (17), à une conduite de retour (24) reliée à une soupape de commande (27).
3. Dispositif de rivetage selon la revendication 2, caractérisé en ce que le piston de commande (4) comporte à son extrémité située à l'opposé du serre-flan (6) un appendice de tige (4c) et pénètre avec celui-ci dans l'alésage de commande (2e) du piston moteur (2) et un autre alésage de commande (1f) du cylindre de travail (1), et en ce qu'à partir de la chambre annulaire (20) entre l'appendice de tige (4c) et les alésages de commande (1f ou 2e), un canal (23) mène dans une chambre annulaire (18) qui entoure le piston moteur (2) dans le cylindre de travail (1), et qui est reliée par l'intermédiaire d'une conduite (25) de pression de rivetage à la soupape de commande (27).
4. Dispositif de rivetage selon la revendication 3, caractérisé en ce qu'une conduite (26) de mesure de rivet mène, de l'extrémité de l'alésage (1f) du piston de commande entourant l'appendice de tige (4c) à une soupape de mesure (28), et en ce que l'appendice de tige (4c) comporte en avant de son extrémité un piston annulaire (4d) pourvu d'un pivot de butée (4e) s'appuyant sur le fond (1g) de l'alésage.
5. Dispositif de rivetage selon la revendication 1, caractérisé en ce que le piston de commande (4) présente une gorge annulaire à laquelle est fixée une règle de mesure (7) montée sur le serre-flan (6) et s'étendant à travers une fente (1 b) du cylindre de travail (1).
6. Dispositif de rivetage selon la revendication 5, caractérisé en ce que la gorge annulaire est formée par une vis cylindrique (5) vissée dans l'extrémité du piston de commande (4), et dont la tige cylindrique (5b) est plus longue qu'un perçage de passage (7b) passant pour cette tige à travers la règle de mesure (7).
7. Dispositif de rivetage selon la revendication 6, caractérisé en ce que la tête (5a) de la vis cylindrique (5) est insérée dans une enclave (7a) entourant le perçage de passage (7b) à une profondeur telle, qu'elle constitue un guidage pour un ressort de commande (9) s'appuyant sur le fond de piston (2a) et agissant sur le piston de commande (4).
8. Dispositif de rivetage selon l'une ou plusieurs des revendications précédentes, caractérisé en ce qu'à côté du ressort de commande (9) est disposé un ressort de mesure (8) s'appuyant sur le fond de piston (2a) et agissant sur la règle de mesure (7).
9. Dispositif de rivetage selon l'une ou plusieurs des revendications précédentes, caractérisé en ce que la soupage de commande (27) et la soupape de mesure (28) sont reliées, par l'intermédiaire de conduites d'agent de pression (29, 30), à une pompe (32) ou à un réservoir (31).
EP19820101576 1981-06-13 1982-03-02 Appareil à riveter Expired EP0067272B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3123581 1981-06-13
DE19813123581 DE3123581A1 (de) 1981-06-13 1981-06-13 Nietvorrichtung

Publications (3)

Publication Number Publication Date
EP0067272A2 EP0067272A2 (fr) 1982-12-22
EP0067272A3 EP0067272A3 (en) 1984-03-21
EP0067272B1 true EP0067272B1 (fr) 1986-11-12

Family

ID=6134690

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19820101576 Expired EP0067272B1 (fr) 1981-06-13 1982-03-02 Appareil à riveter

Country Status (3)

Country Link
EP (1) EP0067272B1 (fr)
DE (1) DE3123581A1 (fr)
ES (1) ES511108A0 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3301243C2 (de) * 1983-01-15 1985-07-04 Mannesmann AG, 4000 Düsseldorf Nietzuführungseinrichtung an einer Nietmaschine
FR2542226B1 (fr) * 1983-03-09 1987-07-03 Saint Chamond Granat Ets Verin hydraulique de poussee portatif notamment pour bouteroller des rivets
US4552010A (en) * 1984-07-09 1985-11-12 Olympic Fastening Systems Pulling head for blind fasteners
US4836003A (en) * 1988-09-14 1989-06-06 Emhart Industries, Inc. System for providing a liquid to a blind rivet setting mechanism
DE4023963A1 (de) * 1990-07-27 1992-01-30 Tucker Gmbh Bostik Blindnietsetzwerkzeug
ES2193444T3 (es) * 1997-07-26 2003-11-01 Eibes Kerb Konus Gmbh Hokramienta de estampado y corte.
DE10150264B4 (de) * 2001-10-11 2006-12-21 Airbus Deutschland Gmbh Verfahren sowie Vorrichtung zur Nietauswahl für Nietverbindungen
CN113305217A (zh) * 2021-05-17 2021-08-27 江苏盾安环控系统有限公司 一种核电站用调节阀叶片连接方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE958447C (de) * 1943-12-13 1957-02-21 Chicago Pneumatic Tool Co Automatische Versenkmaschine
US2578546A (en) * 1948-12-28 1951-12-11 Judson L Thomson Mfg Company Riveting and like machines with pressure limiting mechanism
US3030832A (en) * 1958-01-23 1962-04-24 Acf Ind Inc Riveting machine or the like
US3190104A (en) * 1962-02-08 1965-06-22 Anthony Paul Automatic pull gun
US3557442A (en) * 1968-04-02 1971-01-26 Gen Electro Mech Corp Slug riveting method and apparatus
US4220275A (en) * 1978-07-31 1980-09-02 The Boeing Company Fastener selection system

Also Published As

Publication number Publication date
EP0067272A3 (en) 1984-03-21
EP0067272A2 (fr) 1982-12-22
ES8301702A1 (es) 1983-02-01
DE3123581C2 (fr) 1989-02-16
DE3123581A1 (de) 1982-12-30
ES511108A0 (es) 1983-02-01

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