EP3124133B1 - Dispositif de rivetage avec un outil contre-support et utilisation d'un tel outil - Google Patents
Dispositif de rivetage avec un outil contre-support et utilisation d'un tel outil Download PDFInfo
- Publication number
- EP3124133B1 EP3124133B1 EP16173027.0A EP16173027A EP3124133B1 EP 3124133 B1 EP3124133 B1 EP 3124133B1 EP 16173027 A EP16173027 A EP 16173027A EP 3124133 B1 EP3124133 B1 EP 3124133B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- punch
- components
- die
- polished
- dolly
- 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.)
- Active
Links
- 239000000314 lubricant Substances 0.000 claims description 5
- 238000010894 electron beam technology Methods 0.000 claims description 4
- 239000011241 protective layer Substances 0.000 claims description 4
- 239000012791 sliding layer Substances 0.000 claims description 4
- 238000002604 ultrasonography Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 239000010410 layer Substances 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000005304 joining Methods 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000009499 grossing Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 229910001315 Tool steel Inorganic materials 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 238000003980 solgel method Methods 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Images
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
- B21J15/025—Setting self-piercing rivets
-
- 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
- B21J15/36—Rivet sets, i.e. tools for forming heads; Mandrels for expanding parts of hollow rivets
Definitions
- the present invention relates to a punch riveting apparatus with a counter-holder and a use of such a counter-holder.
- Punching riveting methods are used to connect at least two components that are particularly flat in a connection region (joining partner).
- a punch riveting method is characterized in that a pre-punching of the components to be joined together is not required. Rather, a rivet is pressed by means of a punch or a punch tool in the at least two components, being ensured by a correspondingly shaped counter-holder, for example.
- a punch or a punch tool in the at least two components, being ensured by a correspondingly shaped counter-holder, for example.
- the rivet or the components in a certain Deforming manner to produce a positive and positive connection between the components.
- Ultrasonic punch riveting known, in which a vibration generator, such as.
- An ultrasonic generator is used to enable one or more components when connecting the components in vibration. By this vibration, for example, the expended force is reduced to push the rivet.
- the EP 1 177 844 A1 which forms the basis for the preamble of claims 1 and 7, describes a counter-holder or a die for a punch riveting apparatus having a DLC-coated surface.
- a counter-holder also referred to as a die, for a punch riveting device according to the invention with a punch, in which at least two components to be connected to each other can be arranged between the counter-holder and the punch, has a surface which is re-polished at least in a region facing the components.
- the remelt-polished surface is in particular laser-polished or electron-beam polished.
- a conventional counter-holder for a punch riveting is usually milled or rotated and possibly mechanically polished or ground.
- the counter-holder thus has a relatively rough surface, on which material can adhere from a component abutting the punch riveting process. This is particularly the case, for example, in the case of stamped riveting of soft materials such as, for example, pure aluminum.
- an anvil according to the invention now has a crack-free and pore-free surface on which material can not or at least hardly adhere.
- a thin layer of the surface is melted with a laser or electron beam guided along the surface and then hardened again. This leads to a smoothing of the surface due to the interfacial tension. This achieves a significantly smoother surface than with material-removing processes.
- such a counter holder for punch riveting with a vibrator provided in the form of an ultrasonic generator.
- a portion of the punch riveting apparatus is vibrated during the punch riveting operation so that the rivet can be more easily pressed into the components to be connected.
- the vibrations or the ultrasound can between the anvil and the adjacent component, a relative movement caused by which not only adhesions of material but also, for example. Alloys can arise in conventional counter-holders.
- a counter-holder according to the invention this is no longer or at least hardly the case.
- this is advantageous because there more and more often light metals such as aluminum are used.
- the remelt-polished surface preferably has a thickness of at most 200 ⁇ m, in particular at most 100 ⁇ m. Such a thickness can be easily and quickly produced by remelting and is also sufficient for use in punch riveting devices.
- the remelt-polished surface has a plurality of recesses, in particular regularly and / or irregularly arranged.
- the recesses may substantially have a shape of a part of a spherical surface and / or a diameter of at most 500 ⁇ m and / or a depth of at most 100 ⁇ m.
- the remelt-polished surface has a protective layer or sliding layer, in particular comprising or consisting of a DLC coating, ceramic or ceramic-like coating.
- DLC is so-called “diamond-like carbon", for example a C2 or C3 layer.
- Such a layer can be produced, for example, by bombarding a piece of carbon with a laser beam, so that the carbon atoms can deposit correspondingly on the surface of the counter-holder.
- a ceramic-like coating for example, a zirconium layer can be used, which is applied, for example, by means of a sol-gel process.
- a punch riveting apparatus 10 is shown at various stages of performing a punch riveting process.
- the punch riveting device 10 has a punch 15 which is radially surrounded by a sleeve-shaped hold-down 16 and is arranged to be movable relative to the latter in the longitudinal direction.
- the punch 15 is coupled to a drive, not shown here, for example a hydraulic or pneumatic drive, which serves to apply a force F required to press a rivet 20 into the two components 11, 12.
- the hold-down 16 is adapted to press against the surface of the die 15 facing member 11 with a hold-down force.
- a separate drive can be provided.
- the hold-down can also be coupled to the drive of the punch 15, for example by means of a spring.
- an inventive counter-holder 18 which acts as a die here, arranged.
- the die 18 is also in the direction of a longitudinal axis 19, in the direction of which also the punch 15 and the hold-16 are arranged movable, raised and lowered.
- the hold-down 16 and the die 18 serve to clamp or compress the two components 11, 12 between the hold-down 16 and the die 18 during processing by the punch 15.
- the die 18 has, on the side facing the component 12, a region 21 with a flat surface from which a trough-shaped or recess 22 extends.
- the rivet 20 preferably consists of a material which is harder than the materials of the two components 11, 12, at least in the region of the rivet shank 24.
- the planar top side 26 facing away from the component 11 is arranged in operative connection with the ram 15, which is located at the top side 26 of FIG Rivet 20 is flat.
- the punch 15 is operatively connected to a vibration generator 30 for generating vibrations.
- a vibration generator 30 for generating vibrations.
- ultrasonic vibrations with an amplitude (distance between maximum positive and negative amplitude of a vibration) between 10 .mu.m and 110 .mu.m (or an amplitude between 5 .mu.m and 55 .mu.m) and a frequency between 15 kHz and 35 kHz are generated.
- vibrations are coupled by the vibrator 30 via the punch 15 in the rivet 20.
- the coupling-in direction of the vibrations of the vibration generator 30 can take place, for example, parallel to the longitudinal axis 19, that is to say parallel to the joining direction of the rivet 20 into the components 11, 12.
- Oscillator 30 may, for example, parallel to the longitudinal axis 19, that is, parallel to the joining direction of the rivet 20 in the components 11, 12 done.
- FIG. 1a Phase shown represents a beginning of the Stanzniethabilits in which the rivet shank 24 comes into operative connection with the top of the component 11. In this case, the punch 15 is pressed with the force F against the stamp 15 facing member 11.
- the rivet shank 24 initially cuts or punches into the component 11.
- the two components 11, 12 are plastically deformed, wherein the recess 22 facing the component 12 is pressed in the corresponding areas in the recess 22.
- the rivet shank 24 is spread outwards in the region of the recess 22, whereby the two components 11, 12 are securely connected to each other in the axial direction in a positive and non-positive manner.
- FIG. 2 a sequence of a method for producing a counter-holder is shown.
- a section of the counter-holder or the die 18 is shown, which consists of a base material 185.
- This base material may, for example, be hardened tool steel.
- the figure on the right shows a rough surface 181, as it exists before the method according to the invention, for example after a milling operation.
- the Ver-186 in which the base material is melted or remelted.
- the laser beam can be performed with pulsed laser radiation, continuous laser radiation or in a combined variant in one or more crossings.
- the jet speed can be 10 to 1000 mm / sec at a power of 20 to 500 W.
- the spot diameter can be at least 10 ⁇ m.
- the smoothing of the surface results from the interfacial tension.
- the surface generally freezes out of the melt without cracking or pores, which leaves no sharp-edged structures on the surface.
- the heat-affected zone 184 which is likewise shown, is formed during the remelting between the base material 185 and the remelting layer 183.
- the thickness of the heat-affected zone is typically in the order of magnitude of the remelting zone.
- FIG. 3 schematically shows a surface of a counter-holder according to the invention in a preferred embodiment.
- a sliding or protective layer 190 is applied to the surface which has now been melt-coated, which may be, for example, DLC, ie "diamond-like carbon".
- recesses 195 are provided on the surface of the die 18 . These recesses 195 can be obtained by, for example, suitably guiding the laser beam during laser polishing. These recesses may be provided on the surface, for example, at irregular intervals, both in the longitudinal and in the transverse direction.
- a type of pocket for lubricant applied to the surface of the die is thus formed. This can prevent the lubricant from being removed too quickly.
- Umschmelzpolieren incl The introduction of the wells can be done not only on a flat surface, but in particular on a surface with recesses, such as. In FIG. 1 in cross-section with the recess 22 is shown, can take place.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
- Insertion Pins And Rivets (AREA)
Claims (8)
- Dispositif de rivetage (10) pour l'assemblage d'au moins deux pièces (11, 12) avec un contre-appui (18) et un poinçon (15),
dans lequel lesdites au moins deux pièces (11, 12) peuvent être disposées entre le poinçon (15) et le contre-appui (18),
caractérisé en ce que le contre-appui (18) présente une surface polie par fusion, qui est tournée vers une desdites au moins deux pièces (11, 12), et
en ce que le dispositif de rivetage (10) présente un générateur d'ultrasons (30), au moyen duquel le poinçon (15), le contre-appui (18) et/ou au moins une desdites au moins deux pièces (11, 12) peut être mis(e) en vibration. - Dispositif de rivetage (10) selon la revendication 1, dans lequel la surface polie par fusion (182) présente une épaisseur de 250 µm au maximum, en particulier de 100 µm au maximum.
- Dispositif de rivetage (10) selon la revendication 1 ou 2, dans lequel la surface polie par fusion (182) est réalisée sous forme polie par un faisceau laser ou sous forme polie par un faisceau d'électrons.
- Dispositif de rivetage (10) selon l'une quelconque des revendications précédentes, dans lequel la surface polie par fusion (182) présente plusieurs creux (195).
- Dispositif de rivetage (10) selon la revendication 4, dans lequel les creux (195) présentent essentiellement une forme d'une partie d'une surface sphérique et/ou un diamètre de 500 µm au maximum et/ou une profondeur de 100 µm au maximum.
- Dispositif de rivetage (10) selon l'une quelconque des revendications précédentes, dans lequel la surface polie par fusion (182) présente une couche de protection ou une couche de glissement (190).
- Utilisation d'un contre-appui (18) avec un dispositif de rivetage (10) avec un poinçon (15) pour l'assemblage d'au moins deux pièces (11, 12) au moyen d'un rivet (20),
dans laquelle lesdites au moins deux pièces (11, 12) peuvent être disposées entre le poinçon (15) et le contre-appui (18),
caractérisée en ce que le dispositif de rivetage (10) présente un générateur d'ultrasons (30), au moyen duquel le poinçon (15), le contre-appui (18) et/ou au moins une desdites au moins deux pièces (11, 12) peut être mis(e) en vibration, et
en ce que le contre-appui (18) présente une surface polie par fusion (182) au moins dans une région (21) tournée vers les pièces (11, 12). - Utilisation selon la revendication 7, dans laquelle un lubrifiant est introduit entre le contre-appui (18) et la pièce (11) tournée vers le contre-appui avant l'assemblage desdites au moins deux pièces (11, 12).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015214614.6A DE102015214614A1 (de) | 2015-07-31 | 2015-07-31 | Gegenhalter für eine Stanznietvorrichtung, Stanznietvorrichtung, Verwendung eines Gegenhalters und Verfahren zum Herstellen eines Gegenhalters |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3124133A1 EP3124133A1 (fr) | 2017-02-01 |
EP3124133B1 true EP3124133B1 (fr) | 2019-08-07 |
Family
ID=56119335
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16173027.0A Active EP3124133B1 (fr) | 2015-07-31 | 2016-06-06 | Dispositif de rivetage avec un outil contre-support et utilisation d'un tel outil |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP3124133B1 (fr) |
DE (1) | DE102015214614A1 (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017130449B4 (de) * | 2017-12-14 | 2021-01-21 | Schaeffler Technologies AG & Co. KG | Stempelwerkzeug zum Reibnieten |
DE102019114095A1 (de) * | 2019-05-27 | 2020-12-03 | Bayerische Motoren Werke Aktiengesellschaft | Vereinzelungsvorrichtung für Nietelemente, Nietvorrichtung und Verfahren |
FR3098557B1 (fr) * | 2019-07-12 | 2021-06-11 | Renault Sas | Bouterolle de rivetage à revêtement de surface antifriction |
DE102019128745A1 (de) * | 2019-10-24 | 2021-04-29 | Bayerische Motoren Werke Aktiengesellschaft | Ultraschallschweißvorrichtung und Verfahren zum Ultraschallverschweißen von mindestens zwei Bauteilen |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19729368A1 (de) * | 1997-07-09 | 1999-01-14 | Ortwin Hahn | Vorrichtung und Verfahren zum mechanischen Fügen von Blechen, Profilen und/oder Mehrblechverbindungen |
DE20013526U1 (de) * | 2000-08-05 | 2000-12-07 | Avdel Verbindungselemente GmbH, 30851 Langenhagen | Vorrichtung zum Verbinden von Blechen durch Stanznieten oder Durchsetzfügen |
DE10228743B4 (de) * | 2002-06-27 | 2005-05-04 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Verfahren zum Glätten und Polieren von Oberflächen durch Bearbeitung mit Laserstrahlung |
DE10342750B4 (de) * | 2003-09-16 | 2008-06-19 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Verfahren zum Glätten und Polieren oder zum Strukturieren von Oberflächen mit Laserstrahlung |
GB0813883D0 (en) | 2008-07-30 | 2008-09-03 | Henrob Ltd | Joining apparatus and method |
DE102008038395B3 (de) * | 2008-08-19 | 2009-11-05 | Surcoatec International Ag | Verfahren zum Glätten der Oberfläche eines Substrates unter Verwendung eines Lasers |
JP5440328B2 (ja) * | 2010-03-31 | 2014-03-12 | 新日鐵住金株式会社 | リベット接合方法 |
DE102014203357B4 (de) | 2014-02-25 | 2016-11-03 | Henkel Ag & Co. Kgaa | Darreichungseinheit für eine Masse |
DE102014203757B4 (de) * | 2014-02-28 | 2022-03-31 | Robert Bosch Gmbh | Verfahren zum Verbinden wenigstens zweier Bauteile im Stanznietverfahren, Vorrichtung zum Durchführung des Verfahrens, Fertigungseinrichtung und Verwendung des Verfahrens |
-
2015
- 2015-07-31 DE DE102015214614.6A patent/DE102015214614A1/de not_active Withdrawn
-
2016
- 2016-06-06 EP EP16173027.0A patent/EP3124133B1/fr active Active
Non-Patent Citations (1)
Title |
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None * |
Also Published As
Publication number | Publication date |
---|---|
EP3124133A1 (fr) | 2017-02-01 |
DE102015214614A1 (de) | 2017-02-02 |
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