WO2012025522A2 - Outil de rivetage - Google Patents

Outil de rivetage Download PDF

Info

Publication number
WO2012025522A2
WO2012025522A2 PCT/EP2011/064463 EP2011064463W WO2012025522A2 WO 2012025522 A2 WO2012025522 A2 WO 2012025522A2 EP 2011064463 W EP2011064463 W EP 2011064463W WO 2012025522 A2 WO2012025522 A2 WO 2012025522A2
Authority
WO
WIPO (PCT)
Prior art keywords
rivet
clamping plates
setting device
holder
mandrel
Prior art date
Application number
PCT/EP2011/064463
Other languages
German (de)
English (en)
Other versions
WO2012025522A3 (fr
Inventor
Fabio Luongo
Original Assignee
Adolf Würth GmbH & Co. KG
Würth International 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 Adolf Würth GmbH & Co. KG, Würth International Ag filed Critical Adolf Würth GmbH & Co. KG
Priority to EP11748374.3A priority Critical patent/EP2608908A2/fr
Publication of WO2012025522A2 publication Critical patent/WO2012025522A2/fr
Publication of WO2012025522A3 publication Critical patent/WO2012025522A3/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
    • B21J15/02—Riveting procedures
    • B21J15/04—Riveting hollow rivets mechanically
    • B21J15/043—Riveting hollow rivets mechanically by pulling a mandrel

Definitions

  • the invention is based on a Nietsetzêt, with the help of a blind rivet can be set.
  • Blind rivets are those rivets that are inserted and deformed from the front without access to the back of the location where the rivet is placed.
  • the deformation of the blind rivet to form a rivet head on the back or in a solid material is done by means of a rivet mandrel, which is pulled on. It can be done using manually operated pliers or by using powered riveting tools. After setting the blind rivet, the rivet pin ruptures.
  • rivet setting tools that drive the rivet by thrusting the rivet mandrel into the material to be fastened, before deforming the rivet to form a rivet head by accessing the rivet mandrel.
  • a blind riveting tool is already known in which an electric motor drives a pulling device which pulls on the rivet mandrel of a blind rivet held in the device.
  • a collet is provided, which has an inner cone and thereby acts on clamping jaws inwards.
  • Clamping jaws for engaging cylindrical objects are known. They are moved axially and also moved inwards due to inclined surfaces. Usually there are at least two such jaws which, when moved inward, reduce the spaces between each other. In order to first drive in a rivet by pushing attack on the rivet mandrel, clamping jaws have to be moved outwards in order to release the rivet mandrel. to admit. The jaws are not guided in their the rivet mandrel releasing state in the circumferential direction and form free spaces between them. The inventor of the present invention has found that such enlargements of slots between jaws can occur and that the rivet mandrel may buckle into such a slot during the setting process. This leads to a complete blockage of the device.
  • the object of the invention is to provide a rivet setting device which operates reliably even after long use and under difficult conditions.
  • the invention proposes a Nietsetzêt with the features mentioned in claim 1. Further developments of the invention are the subject of dependent claims.
  • the rivet setting device proposed by the invention thus has a holder with a central cylindrical passage for the rivet mandrel. Clamping plates are guided in a radially displaceable manner in the holder in slots extending in the radial direction and in the longitudinal direction of the passage. The clamping plates are thereby secured in the circumferential direction against dodging. Their inner sides facing the passage are designed to engage the rivet mandrel.
  • the holder contains at least two clamping plates. Preferably, it contains three or four clamping plates, which are in particular identical.
  • the holder is made of solid material with slots formed therein.
  • Material can be metal, so that the holder can be produced as an injection molded part.
  • the bracket may also have a reduced wall thickness to save material and weight.
  • the slots are open at the end of the holder facing away from the front side of the rivet setting device.
  • the front side of the rivet setting device is to be understood as that side from which the rivet mandrel is inserted into the device and which faces the setting site when the rivet is set.
  • the open end of the slots facilitates the assembly of the clamping plates and the possibly required attack on the back of the clamping plates.
  • the clamping plates have a preferably arranged in the region of the front of the rivet setting device end remote engagement surface for Beauf- tion opposite to the pulling direction of the rivet mandrel. This is to ensure that, when just no setting operation is performed, the clamping plates can be moved to the outside to release the passage through the holder.
  • the rivet setting device can have a spring loading in order to move the clamping plates radially outward. This spring action, for example, attack plates on the just mentioned attack surfaces of the clamping. To move the clamping plates radially inwardly to bring them into engagement with a rivet mandrel, the pulling device is provided.
  • the clamping plates in the invention may have an attack surface, which is formed for example as an inclined surface.
  • the clamping plates protrude at the front of the Nietsetzêts remote from the back of the holder from this.
  • the engagement for displacing the clamping plates radially outwards can be made particularly simple, for example by a bridge closer.
  • leading edge and / or the trailing edge of the clamping plates run obliquely with respect to a perpendicular to the longitudinal axis of the passage.
  • the previously mentioned inclined surface for acting on the clamping plates inwardly may be formed, for example, on the radial outer side of the clamping plates.
  • the clamping plates protrude on its radial outer side of the holder.
  • the width of the slots in which the clamping plates are guided is smaller than the diameter of the passage for the rivet mandrel.
  • the width of the slots and thus the thickness of the clamping plates may be between about 35% and about 60% of the diameter of the passageway for the rivet mandrel.
  • the width of the slots is greater than or equal to is formed of the diameter of the passage.
  • the radial inner sides of the clamping plates which are intended for engagement on the outer side of the rivet mandrel, have a longitudinal profiling with which they can engage the rivet mandrel optionally having a similar profiling. This allows a positive connection between the attacking clamping plates and the rivet mandrel.
  • the invention also proposes a holder with at least two, preferably three or four, in particular uniformly distributed over the circumference clamping plates for a Nietsetzêt ago, as described herein.
  • the invention further proposes clamping plates for holding a rivet setting device, as described herein.
  • FIG. 1 shows a simplified cross section through the front end of a rivet setting device according to the invention
  • FIG. 2 shows in perspective the holder arranged in the rivet setting device;
  • FIG. 3 simplifies a rear view of the holder in FIG. 2;
  • FIG. 4 shows a simplified representation of a modified embodiment corresponding to FIG.
  • the Nietsetz réelle shown in Figure 1 contains a multi-part housing 1. At the front end of Nietsetz réelles, left in Figure 1, an opening is present through which the rivet mandrel 2 of a blind rivet 3 is passed.
  • a holder 5 is disposed immediately behind the opening for the mandrel 2. This holder 5 has a passage 4, through which the mandrel 2 protrudes.
  • the passage 4 corresponds in its cross-section about the size of the mandrel. 2
  • the holder 5 for the mandrel 2 has in the embodiment shown here and described three slots 7, see the figure 3.
  • the section through a slot 7 is passed through.
  • the front end wall 8 of such a slot 7 extends obliquely with respect to the longitudinal axis of the passage 4 for the rivet mandrel 2 of the blind rivet 3.
  • the radially outer end of the end wall 8 is thus closer to the setting end of the rivet setting device 1 as the inner directly adjacent to the passage 4 end the front end wall 8.
  • the front edge 9 has the same slope as the front wall 8 of the associated slot 7.
  • the clamping plate has a radially inwardly parallel to the passage 4 extending inside. 1 1, which is slightly ribbed.
  • the clamping plate 10 On its opposite outer side, the clamping plate 10 has an inclined surface 12, with which it rests flat against the inner side 13 of a clamping sleeve 14.
  • the inner side 13 has a funnel shape opening to the right.
  • a jaw closer 15 is arranged, which is acted upon by means of a compression spring, not shown, to the left, ie in the direction of the setting end of Nietsetzêts.
  • the compression spring of the jaw closer 15 is pressed in the direction of the trailing edge 16 of the clamping plates 10.
  • the rear edge 16 of the clamping plates 10 associated front of the jaws 15 has an inclined surface 17, the slope corresponds to the oblique course of the trailing edge 16 of the clamping plates 10.
  • the leading edge 9 and the trailing edge 16 of the clamping plate 10 thus diverge from each other.
  • FIG. 2 shows the holder 5 in a perspective view. From the lateral surface 18 of the holder 5, the three clamping plates 10 protrude. As a result, the inclined surfaces 12 are outside the holder 5, so that they are available for moving the clamping plates 10. As can be seen from the perspective view as well as the section of FIG. 1, the clamping plates 10 protrude from the rear side on the rear side 19 of the holder 5 facing away from the front side of the rivet setting device. The slots 7 (FIG. 3) are thus open to the rear side 19 of the holder 5.
  • the slots 7 are distributed uniformly in the circumferential direction, they extend on the one hand radially rectilinear and on the other hand in the longitudinal direction parallel to the passage 4.
  • a clamping plate 10 is inserted, which protrude relative to the lateral surface 18 of the holder 5.
  • the width of the slots 7 and thus the thickness of the clamping plates 10 is smaller than the diameter of the passage 4.
  • the clamping plates 10 are radially displaceable in the slots 7, and due to the inclined surfaces 8 to some extent also axially. In the circumferential direction, however, the clamping plates 10 are immovably supported and guided. For the operation of the arrangement, reference is again made to FIG.
  • the jaw closer 15 acted upon by a mentioned compression spring, engages in the axial direction at the trailing edge 16 of the clamping plates 10 and acts on these in the axial direction to the left. Due to the oblique course of the front wall 8 of the slot 7 and the oblique course of the trailing edge 16 and the front inclined surface 17 of the jaw closure 15, this action causes the clamping plate 10 is displaced outwards until it rests against the inside of the clamping sleeve 14. This is the position of the clamping plates 10 shown in FIG. 1. When a rivet mandrel 2 is inserted, it is necessary to pull on the rivet mandrel 2 in order to set the blind rivet 3. This access handle via the clamping sleeve 14, which is pulled to the right.
  • the holder 5 is slightly different than in the embodiment of Figure 1.
  • the slots 7, in which the clamping plates 10 are guided so are open only to the rear side 19 in their radially outer region. They must be open there so that the jaw closure 15 shown in FIG. 1 can engage the rear end edges of the clamping plates 10.
  • the width of the slots 7 and thus the thickness of the clamping plates 10 may also be as large as the diameter of the passage 4 for the mandrel 2 or even larger.
  • the holder 5 ' is extended axially inwards, except in the region of the slots.
  • a rivet setting device for setting a blind rivet contains a plurality of clamping plates with flat boundary surfaces for engagement with the rivet mandrel of the blind rivet. These clamping plates are arranged and guided in slots of a holder.
  • the holder contains a cylindrical passage for the rivet mandrel.
  • the slots extend in the longitudinal direction of the passage and radially. Its width may be smaller than the diameter of the passageway for the rivet mandrel.
  • the clamping plates can be moved radially in the slots to the extent that their inner edges facing the passage engage in the passage and can thus engage a rivet mandrel arranged in the passage.

Landscapes

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

Abstract

L'invention concerne un outil de rivetage pour poser un rivet aveugle, comportant plusieurs plaques de serrage pourvues de surfaces de délimitation planes servant à saisir la tige du rivet aveugle. Ces plaques de serrage sont disposées et guidées dans des fentes d'un élément de retenue. L'élément de retenue présente un passage cylindrique destiné à la tige de rivet. Les fentes s'étendent dans la direction longitudinale du passage et radialement. Leur largeur est inférieure au diamètre du passage destiné à la tige de rivet. Les plaques de serrage peuvent être déplacées radialement dans les fentes de manière que leur arête intérieure tournée vers le passage puissent pénétrer dans le passage.
PCT/EP2011/064463 2010-08-24 2011-08-23 Outil de rivetage WO2012025522A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP11748374.3A EP2608908A2 (fr) 2010-08-24 2011-08-23 Outil de rivetage

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201010039664 DE102010039664A1 (de) 2010-08-24 2010-08-24 Nietsetzgerät
DE102010039664.8 2010-08-24

Publications (2)

Publication Number Publication Date
WO2012025522A2 true WO2012025522A2 (fr) 2012-03-01
WO2012025522A3 WO2012025522A3 (fr) 2012-04-19

Family

ID=44509362

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/064463 WO2012025522A2 (fr) 2010-08-24 2011-08-23 Outil de rivetage

Country Status (3)

Country Link
EP (1) EP2608908A2 (fr)
DE (1) DE102010039664A1 (fr)
WO (1) WO2012025522A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102641986A (zh) * 2012-04-23 2012-08-22 达运精密工业（苏州）有限公司 铆钉铆合模具
US9776237B1 (en) 2016-04-05 2017-10-03 Hyundai Motor Company Apparatus for mounting blind rivet

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2336058A (en) * 1939-04-28 1943-12-07 Aviat Developments Ltd Tool for upsetting tubular rivets
US3626745A (en) * 1969-12-01 1971-12-14 Richline Co Inc The Rivet gun accessory
US5960667A (en) * 1997-12-23 1999-10-05 Emhart Inc. Ball device for setting blind riverts
DE202004012269U1 (de) * 2004-08-05 2005-12-15 Miki Plastik Gmbh Blindnietsetzgerät

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102641986A (zh) * 2012-04-23 2012-08-22 达运精密工业（苏州）有限公司 铆钉铆合模具
US9776237B1 (en) 2016-04-05 2017-10-03 Hyundai Motor Company Apparatus for mounting blind rivet

Also Published As

Publication number Publication date
EP2608908A2 (fr) 2013-07-03
DE102010039664A1 (de) 2012-03-01
WO2012025522A3 (fr) 2012-04-19

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