EP0302136B1 - Outil de rivetage - Google Patents

Outil de rivetage Download PDF

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Publication number
EP0302136B1
EP0302136B1 EP19870111438 EP87111438A EP0302136B1 EP 0302136 B1 EP0302136 B1 EP 0302136B1 EP 19870111438 EP19870111438 EP 19870111438 EP 87111438 A EP87111438 A EP 87111438A EP 0302136 B1 EP0302136 B1 EP 0302136B1
Authority
EP
European Patent Office
Prior art keywords
valve
piston
pressure
tappet
trigger
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 - Lifetime
Application number
EP19870111438
Other languages
German (de)
English (en)
Other versions
EP0302136A1 (fr
Inventor
Manfred Schwab
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.)
Maschinenbau Subotsch and Schwab GmbH
Original Assignee
Alfred Honsel Nieten- und Metallwarenfabrik & Co GmbH
Maschinenbau Subotsch and Schwab GmbH
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 Alfred Honsel Nieten- und Metallwarenfabrik & Co GmbH, Maschinenbau Subotsch and Schwab GmbH filed Critical Alfred Honsel Nieten- und Metallwarenfabrik & Co GmbH
Priority to DE8787111438T priority Critical patent/DE3766497D1/de
Priority to EP19870111438 priority patent/EP0302136B1/fr
Publication of EP0302136A1 publication Critical patent/EP0302136A1/fr
Application granted granted Critical
Publication of EP0302136B1 publication Critical patent/EP0302136B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/0007—Tools for fixing internally screw-threaded tubular fasteners
    • B25B27/0014—Tools for fixing internally screw-threaded tubular fasteners motor-driven
    • 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
    • B21J15/105—Portable riveters

Definitions

  • the invention relates to a rivet setting tool for setting threaded rivet nuts or blind rivet nuts with a feed device which can be actuated for the upsetting process and which gives the threaded bolt or draw bolt an axial movement and which has a cylinder-piston arrangement consisting of a pressure piston and a working piston, and with a pusher, who moves a control valve rod by exerting pressure, which opens or closes connection openings for a pressure medium for actuating the tool, the pusher being movable in a plane oblique to the axis of a control valve rod and moving it downward (see, for example, DE-A 3 603 421).
  • the pressure piston of the feed device is pneumatically actuated by a corresponding assignment of valve openings and compressed air is conveyed into the device for sucking in a blind rivet and for removing torn rivet pins.
  • the valve rod extends from the pusher arranged below the head on the device to the base of the device, in which the pneumatically actuated pressure piston sits and into which the compressed air line opens. Relatively large forces must therefore be applied by the pusher to actuate the valve rod, which makes it difficult to actuate the device.
  • the invention is therefore based on the object of making available a rivet setting tool of the type mentioned, in which the actuation is facilitated.
  • the invention consists in that the valve rod ends in a valve piston seated in a cylinder chamber and that the pusher acts on a valve tappet which opens a pressure medium passage from a pressure chamber provided in the valve piston to the cylinder chamber.
  • An advantageous embodiment consists in that the pressure medium passage consists of an annular space which is formed in that the valve tappet has a smaller diameter than the valve tappet bore which leads to the cylinder chamber, and in that the cylinder chamber is formed between the end face of the valve piston and the cylinder end wall, through which the valve lifter is passed in a sealed manner.
  • the pressure chamber provided in the valve piston expediently consists of a compressed air bore connected to the pressure medium supply and passing through the valve rod in the center.
  • a helical spring arranged in the compressed air bore urges the valve body, which is attached to the end of the valve tappet, into the closed position.
  • valve piston be seated on the valve rod and communicate this to its movement.
  • the pusher expediently has an actuating bolt which acts on the valve tappet.
  • the actuating bolt can carry a cone at its end, which is in contact with the rounded valve stem.
  • a vent hole in the cylinder chamber is open in the rest position of the pusher.
  • the invention proposes that the valve tappet and the actuating pin release a ventilation channel from the cylinder chamber between themselves and the guide surfaces and that a seal closes the ventilation passage when the pusher is actuated.
  • An expedient measure is that the pusher cover, to which the actuating bolt is fastened, closes a venting passage between itself and a guide body in the actuating position.
  • a rivet setting tool 1 which consists of a device part 2 and a handle part 3.
  • a working piston 4 with a working piston rod 5, which acts on the mouthpiece 6 at the front end of the device part 2 in order to carry out the operations with the rivets 7.
  • a pneumatically actuated pressure piston 8 is seated in the grip part 3 and is seated in a pressure chamber 9.
  • a control valve rod 10 which is equipped at its lower end 11 with valve seats and has a valve rod channel 12 which can be aligned at its upper end with a bore 13 in the handle part.
  • a valve rod channel 12 which can be aligned at its upper end with a bore 13 in the handle part.
  • a pusher 15 is arranged obliquely to the axis of the control valve rod 10 and obliquely, i. H. at an angle to the axis of the control valve rod 10, movable.
  • valve rod 10 runs out at its upper end in a valve piston 18 which is seated in a cylinder chamber 19.
  • the pusher 15 acts on a valve lifter 17 which is seated in a pressure medium passage 22.
  • This pressure medium passage 22 is formed in that the outer diameter of the valve lifter 17 has a smaller diameter than the valve lifter bore in the valve piston 18.
  • a valve body arranged by 23 which opens the pressure medium passage 22 after moving downward in FIG. 2.
  • a connection is established between the pressure medium passage 22 and the pressure chamber 24, which is connected to the valve rod channel 12, which is filled with compressed air.
  • This passes through the pressure medium passage 22 into the cylinder chamber 19 and moves the valve piston 18 and thus the valve rod 10 downward, which in turn moves the pressure piston upward through the compressed air flowing into the pressure chamber 9 and actuates the working piston in the device part 2.
  • valve tappet If the pusher 15 is relieved, the valve tappet returns to its starting position due to a helical spring 25 located in the pressure chamber 24. Characterized the pressure medium passage 22 is closed by the valve body 23.
  • the air in the control chamber 19 passes through a passage 26 into a housing recess 27 in which the pusher 15 is seated with a guide body 28.
  • Extending through a central bore 29 in the guide body 28 is an actuating bolt 30 extending from the pusher 15, which carries at its lower end a cone 31 which is in contact with the rounded end 16 of the valve lifter 17.
  • the pusher 15 moves an annular seal 32 arranged thereon from its seat 33 in the guide body 28, and the compressed air can escape from the housing bore 27 through the central bore 29 in the guide body 28 to the outside. This also relieves the pressure on the cylinder chamber 19, and the compression spring 14 presses the valve rod 10 with the valve piston 18 upwards again into the starting position.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Claims (10)

1. Outil de rivetage destiné à poser des écrous de rivets filetés ou des écrous de rivets borgnes, qui comporte un mécanisme d'avance pouvant être commandé de façon à effectuer l'opération de refoulement et imprimant à la tige filetée ou à la tige de traction, un mouvement axial, ce mécanisme étant pourvu d'un ensemble à cylindres/pistons constitué d'un piston (8) de pression et d'un piston (4) de travail, et qui comporte une gâchette (15) qui, lorsqu'elle est pressée, déplace une tringle (10) de soupape de commande qui ouvre et obture des orifices de communication laissant passer un fluide sous pression destiné à actionner l'outil, la gâchette coulissant dans un plan incliné par rapport à l'axe de la tringle de soupape de commande et déplaçant celle-ci vers le bas, caractérisé par le fait que la tringle (10) de soupape se termine par un piston (18) de soupape logé dans une chambre cylindrique (19), et par le fait que la gâchette (15) agit sur un poussoir (17) qui ouvre un conduit (22) de passage de fluide sous pression reliant une chambre (24) de pression, prévue à l'intérieur du piston (18), à la chambre cylindrique (19).
2. Outil de rivetage selon la revendication 1, caractérisé par le fait que le conduit de passage de fluide sous pression est constitué d'une chambre annulaire (22) résultant du fait que le diamètre du poussoir (17) de soupape est plus petit que celui de l'alésage récepteur du poussoir de soupape menant à la chambre cylindrique (19), et par le fait que la chambre cylindrique (19) s'étend entre la face frontale du piston (18) et la paroi frontale du cylindre, que traverse le poussoir (17) de soupape.
3. Outil de rivetage selon la revendication 1 ou 2, caractérisé par le fait que la chambre (24) de pression, prévue dans le piston (18) de soupape, est constituée d'un canal (12) relié au système d'alimentation en fluide sous pression et traversant en son centre la tringle (10) de soupape de commande.
4. Outil de rivetage selon une des revendications 1 à 3, caractérisé par le fait que l'extrémité inférieure du poussoir (17) de soupape est pourvue d'un corps (23) qui est maintenu en position fermée par un ressort hélicoïdal (25) disposé à l'intérieur de la chambre (24) de pression.
5. Outil de rivetage selon une des revendications 1 à 4, caractérisé par le fait que le piston (18) de soupape est monté, comme pièce séparée, sur la tringle (10) de soupape et lui imprime son mouvement.
6. Outil de rivetage selon une des revendications 1 à 5, caractérisé par le fait que la gâchette (15) comporte un axe (30) d'actionnement qui agit sur le poussoir (17) de soupape.
7. Outil de rivetage selon la revendication 6, caractérisé par le fait que l'axe (30) porte à son extrémité un cône (31) qui est en contact avec le bout supérieur arrondi (16) du poussoir (17) de soupape.
8. Outil de rivetage selon une des revendications 1 à 7, caractérisé par le fait que, lorsque la gâchette (15) est en position de repos, elle laisse ouvert un alésage (29) d'échappement relié à la chambre cylindrique (19).
9. Outil de rivetage selon la revendication 8, caractérisé par le fait que le poussoir (17) et l'axe (30) laissent libre, entre eux-mêmes et les faces de guidage, un passage (26, 29) d'échappement de la chambre cylindrique (19), et que, lorsque la gâchette (15) est actionnée, un joint annulaire (32) vient obturer le trou central (29) d'échappement.
10. Outil de rivetage selon la revendication 9, caractérisé par le fait que la gâchette (15) porte un joint étanche (32) qui obture l'alésage (29) d'échappement lorsque la gâchette est actionnée.
EP19870111438 1987-08-07 1987-08-07 Outil de rivetage Expired - Lifetime EP0302136B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE8787111438T DE3766497D1 (de) 1987-08-07 1987-08-07 Nietsetzwerkzeug.
EP19870111438 EP0302136B1 (fr) 1987-08-07 1987-08-07 Outil de rivetage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19870111438 EP0302136B1 (fr) 1987-08-07 1987-08-07 Outil de rivetage

Publications (2)

Publication Number Publication Date
EP0302136A1 EP0302136A1 (fr) 1989-02-08
EP0302136B1 true EP0302136B1 (fr) 1990-11-28

Family

ID=8197192

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19870111438 Expired - Lifetime EP0302136B1 (fr) 1987-08-07 1987-08-07 Outil de rivetage

Country Status (2)

Country Link
EP (1) EP0302136B1 (fr)
DE (1) DE3766497D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11673243B2 (en) 2018-09-05 2023-06-13 Milwaukee Electric Tool Corporation Blind rivet nut-setting tool

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1235969B (it) * 1989-11-17 1992-12-15 Far Snc Di Generali Giacomo & Dispositivo per il recupero della pressione fluidodinamica in particolare per macchine rivettatrici
GB2301547A (en) * 1995-06-02 1996-12-11 Avdel Systems Ltd Fastener installation tool
GB2500897B (en) * 2012-04-03 2014-08-27 Infastech Ip Pte Ltd Fastener installation tool
CN108746456B (zh) * 2018-08-29 2024-06-21 姚永法 一种快捷式拉铆枪
US12453999B2 (en) 2021-07-28 2025-10-28 Milwaukee Electric Tool Corporation Blind rivet nut-setting tool

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB542048A (en) * 1939-10-19 1941-12-23 Chicago Pneumatic Tool Co Single action pneumatic riveter and like percussive tools
GB1479375A (en) * 1974-05-25 1977-07-13 Gesipa Blindentechnik Gmbh Pneumatic-mechanical blind riveting tool
SE428537B (sv) * 1979-01-15 1983-07-11 Lars Erik Gunnar Olsson Pneumatiskt-hydrauliskt verktyg, foretredesvis for blindnitning
DE2902358A1 (de) * 1979-01-22 1980-07-31 Schwab Fa Manfred Ventilbetaetigungseinrichtung fuer ein pneumatisches handgeraet
DE3125838A1 (de) * 1981-07-01 1983-01-27 Manfred 6200 Wiesbaden Schwab Blindnietgeraet mit nietstiftfoerderung
DE3330891A1 (de) * 1983-08-26 1985-03-14 Vsesojuznyj naučno-issledovatel'skij i proektno-konstruktorskij institut mechanizirovannogo i ručnogo stroitel'no-montažnogo instrumenta, vibratorov i stroitel'no-otdeločnych mašin VNNISMI, Chimki, Moskovskaja oblast' Handgriff einer druckluftmaschine
DE3664579D1 (en) * 1985-05-10 1989-08-31 Avdel Systems Ltd Breakstem fastener installation tool
DE3603421A1 (de) * 1986-02-05 1987-08-06 Schwab Maschbau Betaetigungseinrichtung fuer nietsetzwerkzeug

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11673243B2 (en) 2018-09-05 2023-06-13 Milwaukee Electric Tool Corporation Blind rivet nut-setting tool

Also Published As

Publication number Publication date
DE3766497D1 (de) 1991-01-10
EP0302136A1 (fr) 1989-02-08

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