WO2003078090A1 - Dispositif de pose de rivets aveugles - Google Patents

Dispositif de pose de rivets aveugles Download PDF

Info

Publication number
WO2003078090A1
WO2003078090A1 PCT/DE2003/000811 DE0300811W WO03078090A1 WO 2003078090 A1 WO2003078090 A1 WO 2003078090A1 DE 0300811 W DE0300811 W DE 0300811W WO 03078090 A1 WO03078090 A1 WO 03078090A1
Authority
WO
WIPO (PCT)
Prior art keywords
rivet
jaw mechanism
mandrel
mouthpiece
blind
Prior art date
Application number
PCT/DE2003/000811
Other languages
German (de)
English (en)
Inventor
Torsten Gand
Harald Knoblauch
Original Assignee
Avdel Verbindungselemente 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 Avdel Verbindungselemente Gmbh filed Critical Avdel Verbindungselemente Gmbh
Priority to AU2003223862A priority Critical patent/AU2003223862A1/en
Priority to DE10390955T priority patent/DE10390955D2/de
Publication of WO2003078090A1 publication Critical patent/WO2003078090A1/fr

Links

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
    • B21J15/30—Particular elements, e.g. supports; Suspension equipment specially adapted for portable riveters
    • B21J15/32—Devices for inserting or holding rivets in position with or without feeding arrangements
    • 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 present invention relates to a device for setting blind rivets with a mouthpiece for receiving the flowers and a gripping jaw mechanism which grips and attracts the rivet mandrel of the flower rivet, as a result of which the rivet is set.
  • this object is achieved in that the mouthpiece is arranged so as to be displaceable against the force of a spring on the gripper jaw mechanism relative to the rivet device axial direction of the rivet mandrel of the rivet jaw, and the distance between the mouthpiece and the gripper jaw mechanism nik in the idle state is so large that the mandrel of a blind rivet inserted in the mouthpiece does not reach into the gripper jaw mechanism in the idle state.
  • a blind rivet can be placed without the blind rivet device having been pressed against the workpiece to be processed with sufficient force beforehand, so that the rivet head lies firmly on the workpiece to be processed and at the same time possible play between the workpieces to be connected has been balanced due to the contact pressure.
  • a mandrel guide is arranged on the workpiece side, directly in front of the gripper jaw mechanism, coaxially with the mouthpiece, into which the end of the rivet mandrel of the blind rivet protrudes in the idle state.
  • a particularly favorable embodiment of the present invention results from the fact that the mouthpiece is arranged on a cylindrical sleeve which is arranged coaxially with the rivet mandrel and which can be pushed partially against the force of the spring over the workpiece-side end of the housing of the gripper jaw mechanism.
  • the spring is designed as a helical spring which is arranged within the sleeve coaxially to the rivet mandrel and is supported on the workpiece side on an end wall of the sleeve which contains the mouthpiece, while the opposite end the spring is supported on the housing of the gripper jaw mechanism.
  • FIG. 1 shows a sectional illustration of a device according to the invention for setting flowers.
  • an embodiment of the device according to the invention consists of the usual housing 6, which has a housing that is not shown here for the sake of simplicity.
  • Gripper jaw mechanism is located. This housing 6 and the gripper jaw mechanism correspond to the usual state of the art and therefore need not be shown in detail here.
  • a mandrel guide sleeve 4 is used instead.
  • a coaxially arranged sleeve 3 is arranged axially displaceably on the front end of the housing 6.
  • This sleeve 3 is held by a guide bush 5 which is inserted over it and screwed to the housing 6 with its rear end.
  • the guide bushing 5 has a narrowing of the inside diameter at its end on the workpiece side, which, in cooperation with the thickened rear end of the sleeve 3, prevents the sleeve 3 from slipping out.
  • the sleeve 3 carries at its front end, which is closed by an end wall, coaxially m this end wall, a conventional mouthpiece 1 for receiving the flower rivets to be processed.
  • a coaxially arranged coil spring 2 is also arranged within the sleeve 3, one end of which is supported on the end wall of the sleeve 3 and the other end of which is supported on the front end of the housing 6.
  • a suitable helical spring 2 the strength of the contact pressure required for the permissible setting of the rivet can also be set.
  • a gas pressure suspension or other suspension methods could of course also be used.
  • the corresponding spring elements can of course also be attached at another point, for example next to the housing 6.
  • this is inserted into the mouthpiece 1 as usual. Since, according to the invention, this mouthpiece 1 is not located directly in front of the gripping jaw mechanism, but rather is offset by approximately the length of the rivet mandrel on the workpiece, the mandrel broken blind rivet cannot be processed in this state. This is precisely the purpose of the invention, which is intended to ensure that the broken mandrel rivet can only be processed if a certain minimum force is transferred to the workpieces to be connected via the setting tool.
  • the helical spring 2 is compressed, the mandrel of the blind rivet penetrates through the mandrel guide sleeve 4 and projects into the gripping jaw mechanism.
  • the rivet mandrel can now be gripped by the gripper jaw mechanism, as in the case of blind riveting tools according to the prior art, and the usual mandrel broken blind riveting process can be initiated.
  • the riveting tool After the rivet has been placed, the riveting tool is removed from the workpieces which have meanwhile been connected, and the spring 3 immediately pushes the sleeve 3 forward again. Now a new broken mandrel blind rivet can be inserted into the mouthpiece 1 and the process is repeated as often as required.
  • the advantage of the present invention is that, according to the invention, it is no longer possible to insert a blind rivet without a corresponding external counterforce between the rivet Tool and the workpieces to be riveted. According to the invention, it is ensured in a very simple manner that the respective rivet is only processed when the pressing force of the riveting tool on the workpieces is so great that it exceeds the force of the spring 3, since only then the mandrel of the blind rivet can penetrate into the gripper jaw mechanism and only then can the rivet be set. According to the invention, the rivet can therefore no longer be placed in the "air" without the prescribed contact pressure being applied.
  • Another advantage of the present invention is that the processing of the respective blind rivet is only possible if the workpieces to be connected have been brought close enough together due to the contact pressure that is absolutely necessary according to the invention. This prevents incorrect processing of the blind rivet if there are gaps between the workpieces to be processed.
  • the device described does not allow the rivet to be inadvertently released or set, which increases the risk of accidents with a correspondingly high tear-off force, e.g. minimized by uncontrolled triggering of the handheld device.

Landscapes

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

Abstract

L'invention concerne un dispositif de pose de rivets aveugles, comportant un bec (1) destiné à recevoir les rivets aveugles et un mécanisme de mâchoires de prise destiné à saisir et tirer le poinçon du rivet aveugle de manière à poser ledit rivet. Le bec (1) est logé par rapport au dispositif de rivetage aveugle de manière à pouvoir coulisser contre la force d'un ressort (2) dans le sens axial du poinçon du rivet, en direction du mécanisme de mâchoires de prise. Par ailleurs, l'écart entre le bec (1) et le mécanisme de mâchoires de prise au repos est tel que le poinçon d'un rivet aveugle inséré dans le bec (1) ne pénètre pas dans le mécanisme de mâchoires de prise au repos.
PCT/DE2003/000811 2002-03-13 2003-03-13 Dispositif de pose de rivets aveugles WO2003078090A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2003223862A AU2003223862A1 (en) 2002-03-13 2003-03-13 Device for setting blind rivets
DE10390955T DE10390955D2 (de) 2002-03-13 2003-03-13 Vorrichtung zum Setzen von Blindnieten

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20203993U DE20203993U1 (de) 2002-03-13 2002-03-13 Vorrichtung zum Setzen von Blindnieten
DE20203993.5 2002-03-13

Publications (1)

Publication Number Publication Date
WO2003078090A1 true WO2003078090A1 (fr) 2003-09-25

Family

ID=7968888

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2003/000811 WO2003078090A1 (fr) 2002-03-13 2003-03-13 Dispositif de pose de rivets aveugles

Country Status (3)

Country Link
AU (1) AU2003223862A1 (fr)
DE (2) DE20203993U1 (fr)
WO (1) WO2003078090A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11654475B2 (en) 2020-06-03 2023-05-23 Milwaukee Electric Tool Corporation Rivet setting tool

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5136873A (en) * 1991-11-13 1992-08-11 S.A.R.G. Research Assoc, Ltd. Automatic blind rivet setting device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5136873A (en) * 1991-11-13 1992-08-11 S.A.R.G. Research Assoc, Ltd. Automatic blind rivet setting device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11654475B2 (en) 2020-06-03 2023-05-23 Milwaukee Electric Tool Corporation Rivet setting tool

Also Published As

Publication number Publication date
DE20203993U1 (de) 2002-06-27
DE10390955D2 (de) 2005-01-27
AU2003223862A1 (en) 2003-09-29

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