DE102010006400A1 - Method for establishing nailed connection between non-prepunched components in automobile industry, involves thermal softening joint region of non-prepunched component parts before driving nails by setting apparatus - Google Patents

Method for establishing nailed connection between non-prepunched components in automobile industry, involves thermal softening joint region of non-prepunched component parts before driving nails by setting apparatus Download PDF

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Publication number
DE102010006400A1
DE102010006400A1 DE102010006400A DE102010006400A DE102010006400A1 DE 102010006400 A1 DE102010006400 A1 DE 102010006400A1 DE 102010006400 A DE102010006400 A DE 102010006400A DE 102010006400 A DE102010006400 A DE 102010006400A DE 102010006400 A1 DE102010006400 A1 DE 102010006400A1
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Prior art keywords
prepunched
components
heating
thermal softening
joining
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DE102010006400A
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German (de)
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Dominik Dr.-Ing. 85110 Hußmann
Andreas 74842 Hammel
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Audi AG
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Audi AG
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    • 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
    • B21J15/16—Drives for riveting machines; Transmission means therefor
    • B21J15/18—Drives for riveting machines; Transmission means therefor operated by air pressure or other gas pressure, e.g. explosion pressure
    • B21J15/185—Drives for riveting machines; Transmission means therefor operated by air pressure or other gas pressure, e.g. explosion pressure by explosion pressure
    • 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
    • B21J15/02—Riveting procedures
    • B21J15/08—Riveting by applying heat, e.g. to the end parts of the rivets to enable heads to be formed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/562—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits using extra joining elements, i.e. which are not integral with the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • B29C65/743—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc
    • B29C65/7437—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc the tool being a perforating tool
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
    • B29C66/024—Thermal pre-treatments
    • B29C66/0242—Heating, or preheating, e.g. drying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/21—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being formed by a single dot or dash or by several dots or dashes, i.e. spot joining or spot welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B19/00—Bolts without screw-thread; Pins, including deformable elements; Rivets
    • F16B19/14—Bolts or the like for shooting into concrete constructions, metal walls or the like by means of detonation-operated nailing tools

Abstract

The method involves thermal softening a joint region (3) of non-prepunched component parts (1, 2) before driving nails (4) by a setting apparatus (5). The thermal softening of the joint region of non-prepunched component parts is enabled in a contactless manner. Rise in the temperature during the thermal softening is enabled independent of material of the non-prepunched component parts. The joint region is heated via laser irradiation and a hot air blower and the setting apparatus is provided with a heating unit (6) i.e. infrared heating unit. An independent claim is also included for a device for executing a method for establishing nailed connection between non-prepunched components in an adding region by a nail driven by a setting apparatus.

Description

Die Erfindung betrifft ein Verfahren zur Herstellung einer Nagelverbindung zwischen wenigstens zwei nicht vorgelochten Bauteilen gemäß Oberbegriff des Patentanspruchs 1. Ferner betrifft die Erfindung eine Vorrichtung zur Durchführung des erfindungsgemäßen Verfahrens.The invention relates to a method for producing a nail connection between at least two non-pre-punched components according to the preamble of claim 1. Furthermore, the invention relates to a device for carrying out the method according to the invention.

Aus der DE 10 2006 002 238 A1 ist ein solches Verfahren, auch Hochgeschwindigkeitsfügen genannt, bekannt, das einen Nagel verwendet, der einen Nagelkopf mit einer an der Kopfunterseite vorgesehenen Ringnut, einen Nagelschaft und eine Nagelspitze aufweist. Der Nagel wird vom Treiber eines Setzgerätes mit hoher Geschwindigkeit in mindestens ein nicht vorgelochtes Bauteil im Wesentlichen drehungsfrei axial so eingetrieben, dass die Nagelspitze und der Nagelschaft in das Bauteil eindringen, der Nagelkopf an der Oberseite des Bauteils aufliegt und hierbei an der Oberseite des Bauteils ein Materialaufwurf gebildet wird, der in die Ringnut an der Kopfunterseite des Nagels vorsteht, sowie im nagelkopfabgewandten Bauteil an dessen Unterseite ein kraterförmiger Materialauswurf gebildet wird, der in nagelkopfabgewandter Richtung vorsteht. Dieses druckluftbetriebene Hochgeschwindigkeitsfügen erfordert nur eine einseitige Zugänglichkeit des Fügebereichs, so dass in der Regel auch auf eine Matrize verzichtet werden kann.From the DE 10 2006 002 238 A1 Such a method, also called high-speed joining, is known which uses a nail having a nail head with an annular groove provided on the head bottom, a nail shank and a nail tip. The nail is driven by the driver of a setting device at high speed in at least one non-pre-punched component substantially rotationally axially so that the nail tip and the nail shaft penetrate into the component, the nail head rests on the top of the component and in this case at the top of the component Materialaufwurf is formed, which protrudes into the annular groove on the head bottom of the nail, as well as in the side facing away from the nail head on the underside of a crater-shaped material ejection is formed, which protrudes in the direction away from the nail head. This compressed air-driven high-speed joining requires only one-sided accessibility of the joining area, so that as a rule a matrix can be dispensed with.

Mit einem solchen Hochgeschwindigkeitsfügen können Bauteile aus Stahl, Aluminium, Magnesium oder Kunststoff mit oder ohne Faseranteil gefügt werden.With such a high-speed joining components made of steel, aluminum, magnesium or plastic can be joined with or without fiber content.

Um in der Automobilindustrie Gewichtsreduzierungen zu realisieren, kommen immer dünnere Bauteile aus hochfesten oder höchstfesten Stählen zum Einsatz, deren Umformverhalten nicht den bisher eingesetzten Stählen entspricht. Daher kann das oben beschriebene Hochgeschwindigkeitsfügen mit ungelochten Bauteilen nicht in allen Anwendungsfällen mit Bauteilen aus hoch- oder höchstfesten Stählen durchgeführt werden, sondern die Bauteile müssen bspw. vorgelocht werden, wodurch die Prozesszeiten verlängert und dadurch auch die Herstellungskosten ansteigen.In order to realize weight reductions in the automotive industry, ever thinner components made of high-strength or ultrahigh-strength steels are used whose forming behavior does not correspond to the steels used hitherto. Therefore, the above-described high-speed joining with non-perforated components can not be performed in all applications with components made of high-strength or high-strength steels, but the components must be, for example. Pre-perforated, whereby the process times extended and thereby increase the cost of production.

Neben dem Hochgeschwindigkeitsfügen sind weitere mechanische Verbindungsverfahren bekannt, die hinsichtlich Aufwand und Fügezeit nicht mit diesem Verfahren vergleichbar sind.In addition to the high-speed joining, further mechanical joining methods are known which are not comparable with this method in terms of complexity and joining time.

So ist bspw. aus der DE 198 52 809 A1 ein Stanznieten mittels Halbhohlniet oder Vollniet beschrieben, bei dem in der künftigen Umformzone eine lokal und zeitlich begrenzte Erwärmung der Fügeteile durch eine elektrische Widerstandserwärmung durchgeführt wird. Ein solches Stanznieten führt zu einem Formschluss zwischen den Fügepartnern.So is, for example, from the DE 198 52 809 A1 a punch rivets by Halbhohlniet or rivet described in which a local and temporary heating of the parts to be joined by an electrical resistance heating is performed in the future forming zone. Such a punch rivet leads to a positive connection between the joining partners.

Des weiteren ist aus der DE 1 440 747 A2 ein Stanznieten und ein Clinchverfahren bekannt, bei dem ebenfalls vor dem Fügen eine lokale Erwärmung der Fügepartner durchgeführt wird. Das Clinchverfahren ist aufgrund einer erforderlichen Matrize nur durchführbar, wenn der Fügebereich beidseitig zugänglich ist. Ein ähnliches Clinchverfahren beschreibt auch die DE 196 30 488 C2 , bei dem die Fügeteile an den Fügeflächen durch Kontakt mit vorgewärmten Werkzeugteilen oder durch berührungslose Wärmezufuhr erwärmt werden, bis die Fügeteile ein für das Umformen ausreichendes Formänderungsvermögen erhalten.Furthermore, from the DE 1 440 747 A2 a punch riveting and a clinching known, in which also before joining a local heating of the joining partners is performed. The clinching process is only feasible due to a required die, if the joining area is accessible on both sides. A similar clinching process also describes the DE 196 30 488 C2 in which the parts to be joined are heated at the joining surfaces by contact with preheated tool parts or by non-contact heat supply until the parts to be joined have sufficient deformability for forming.

Diese zu einem Formschluss führenden Verbindungsverfahren weisen jedoch den Nachteil auf, dass Ihnen die Einfachheit des Hochgeschwindigkeitsfügens fehlt bzw. lange Prozesszeiten erfordern und daher zu hohen Fertigungskosten führen.However, these connection methods leading to positive locking have the disadvantage that they lack the simplicity of high-speed joining or require long process times and therefore lead to high production costs.

Aufgabe der Erfindung ist es daher, ein Verfahren sowie eine Vorrichtung anzugeben, welche beim Hochgeschwindigkeitsfügen der eingangs beschriebenen Art den Einsatz von ungelochten Bauteilen aus hoch- und höchstfesten Werkstoffen ermöglicht.The object of the invention is therefore to provide a method and a device which allows the use of non-perforated components made of high-strength and ultrahigh-strength materials in the high-speed joining of the type described above.

Diese Aufgabe wird gelöst durch ein Verfahren mit den Merkmalen des Patentanspruchs 1. Die Aufgabe wird weiterhin gelöst durch eine Vorrichtung mit den Merkmalen des Patentanspruchs 9.This object is achieved by a method having the features of patent claim 1. The object is further achieved by a device having the features of patent claim 9.

Bei einem solchen erfindungsgemäßen Verfahren wird der Fügebereich der beiden Bauteile vor dem Eintreiben des Nagels lokal thermisch erweicht.In such a method according to the invention, the joining region of the two components is locally thermally softened before the nail is driven in.

Der wesentlichste Vorteil einer solchen lokalen Erwärmung des Fügebereichs liegt darin, dass bspw. bei einem Bauteil aus einem hoch- oder höchstfesten Stahlwerkstoff durch die Erweichung eine bessere Klemmwirkung am Nagelschaft des eingetriebenen Nagels erzielt wird, ohne dass eine Vorlochung erforderlich ist oder die Prozesszeit verlängert werden muss. Fügeteile aus hoch- oder höchstfesten Werkstoffen können ohne starke Belastung gefügt werden, wobei gleichzeitig auch die Belastung des Setzwerkzeugs niedrig gehalten werden kann.The most significant advantage of such a local heating of the joint area is that, for example, in a component made of a high or ultra-high strength steel material by the softening a better clamping effect on the nail shaft of the driven nail is achieved without a pre-perforation is required or the process time can be extended got to. Joining parts made of high- or ultra-high-strength materials can be joined without heavy load, while at the same time the loading of the setting tool can be kept low.

Ferner können mit dem erfindungsgemäßen Verfahren nicht nur auf Stahl-Bauteile aufliegende Aluminium-Bauteile gefügt werden, sondern auch umgekehrt auf Aluminium-Bauteile liegende Stahl-Bauteile.Furthermore, with the method according to the invention not only aluminum components resting on steel components can be joined, but also, conversely, steel components lying on aluminum components.

Gegenüber dem Hochgeschwindigkeitsfügen ohne thermische Unterstützung lässt das erfindungsgemäße Verfahren auch das Fügen von dickeren Bauteilen aus hoch- oder höchstfesten Stahlwerkstoffen zu.Compared to the high-speed joining without thermal support, the inventive method also allows the joining of thicker Components made of high-strength or ultra-high-strength steel materials.

Gemäß einer vorteilhaften Weiterbildung der Erfindung erfolgt die thermische Erweichung des Fügebereichs der beiden Bauteile berührungslos, wodurch eine einfache und kostengünstige Realisierung ermöglicht wird.According to an advantageous embodiment of the invention, the thermal softening of the joining region of the two components takes place without contact, whereby a simple and cost-effective implementation is made possible.

Ferner wird in vorteilhafter Weise gemäß einer weiteren Weiterbildung der Erfindung die Erweichungstemperatur in Abhängigkeit des Materials der beiden Bauteile eingestellt.Furthermore, according to a further development of the invention, the softening temperature is advantageously set as a function of the material of the two components.

Vorzugsweise erfolgt die Erwärmung der Fügestelle zur thermischen Erweichung induktiv, durch Infrarotbestrahlung, durch Laserbestrahlung, durch Ultraschallbestrahlung oder ein Heißluftgebläse.Preferably, the heating of the joint for thermal softening is carried out inductively, by infrared irradiation, by laser irradiation, by ultrasonic irradiation or a hot air blower.

Gemäß der erfindungsgemäßen Vorrichtung umfasst das Setzgerät eine Heizvorrichtung, die vorzugsweise als Induktionsheizung, als Infrarotheizung, als Laser, als Ultraschallheizung oder als Heizluftgebläse ausgebildet ist.According to the device according to the invention, the setting device comprises a heating device, which is preferably designed as induction heating, as infrared heating, as a laser, as an ultrasonic heater or as Heizluftgebläse.

Die Erfindung wird nachfolgend anhand eines Ausführungsbeispiels unter Bezugnahme auf die beigefügten Figuren ausführlich beschrieben. Es zeigen:The invention will now be described in detail by means of an embodiment with reference to the accompanying figures. Show it:

1 bis 4 eine schematische Darstellung von Prozessschritten zur Durchführung des erfindungsgemäßen Verfahrens mit einem Setzgerät. 1 to 4 a schematic representation of process steps for carrying out the method according to the invention with a setting tool.

Die 1 bis 4 zeigen ein nur schematisch angedeutetes Setzgerät 5 in unterschiedlichen Prozessstellungen. Dieses Setzgerät 5 in Form eines Bolzenschussgerätes, einer Pulverkartusche oder dergleichen umfasst einen Schubkolben 7 der in einem rohrförmigen Mundstück 8 geführt wird. In diesem Mundstück 8 befindet sich ein in zwei zu fügende flächige Bauteile 1 und 2 einzutreibender Nagel bzw. Setzbolzen 4 mit einem Nagelkopf und einem eine Spitze aufweisenden Nagelschaft. Das Mundstück 8 wird in einem Fügebereich 3 auf das Bauteil 1 aufgesetzt, wobei dieser Fügebereich 3 durch einen Durchmesser a begrenzt wird.The 1 to 4 show a setting device indicated only schematically 5 in different process settings. This setting tool 5 in the form of a bolt gun, a powder cartridge or the like comprises a thrust piston 7 in a tubular mouthpiece 8th to be led. In this mouthpiece 8th is located in two to be joined planar components 1 and 2 Nail to be nailed or setting bolt 4 with a nail head and a pointed nail shank. The mouthpiece 8th will be in a joining area 3 on the component 1 put on, this joining area 3 is limited by a diameter a.

Das Setzgerät 5 umfasst ferner eine Heizvorrichtung 6 zur thermischen Erweichung des Fügebereichs 3. Diese Heizvorrichtung 6 kann als Induktionsheizung, als Infrarotheizung, als Laser, als Ultraschallheizung oder als Heizluftgebläse ausgebildet sein, so dass sie das Mundstück 8 kreisförmig umgibt, um eine gleichmäßige Erwärmung des Materials der Bauteile 1 und 2 im Fügebereich 3 zu erzielen. Die Erweichungstemperatur hängt von den Materialien der zu fügenden Bauteile 1 und 2 ab. Um die Temperatur im Fügebereich 3 zu erfassen, zu überwachen und einzustellen, ist ein Temperatursensor (nicht dargestellt) vorgesehen.The setting tool 5 further comprises a heating device 6 for thermal softening of the joining area 3 , This heater 6 can be designed as induction heating, as infrared heating, as a laser, as an ultrasonic heater or as Heizluftgebläse, so that they the mouthpiece 8th Circular surrounds to uniform heating of the material of the components 1 and 2 in the joining area 3 to achieve. The softening temperature depends on the materials of the components to be joined 1 and 2 from. To the temperature in the joining area 3 to capture, monitor and adjust, a temperature sensor (not shown) is provided.

1 zeigt den ersten Prozessschritt, bei dem sich ein Nagel 4 in dem Mundstück 8 befindet, der Schubkolben 7 in seiner Anfangslage abgebildet ist. Bei diesem ersten Prozessschritt ist die Heizvorrichtung 6 aktiviert, um den Fügebereich 3 so lange zu erwärmen, bis das Material der beiden Bauteile 1 und 2 im Fügebereich 3 die erforderliche Temperatur erreicht hat, bei der dieses Material in seinen Erweichungszustand übergeht. 1 shows the first process step involving a nail 4 in the mouthpiece 8th located, the thrust piston 7 is depicted in its initial position. In this first process step is the heater 6 activated to the joining area 3 so long to heat up the material of the two components 1 and 2 in the joining area 3 has reached the required temperature at which this material passes into its softening state.

Im nächsten Prozessschritt gemäß 2 beginnt der Setzvorgang, indem der Schubkolben angetrieben mit hoher Geschwindigkeit v1 sich auf den Nagel bzw. Setzbolzen 4 zubewegt und ihn in Richtung der Bauteile 1 und 2 beschleunigt, wobei gleichzeitig die Heizvorrichtung abgeschaltet wird.In the next process step according to 2 begins the setting process by the thrust piston driven at high speed v 1 on the nail or setting pin 4 moved towards him and in the direction of the components 1 and 2 accelerates, while the heater is switched off.

3 zeigt den in die beiden Bauteile 1 und 2 eingetriebenen Nagel 4 mit dem in seiner Endlage sich befindenden Schubkolben 7, so dass die Spitze des Schaftes des Nagels 4 auf der Rückseite des Bauteils 2 austritt und dabei einen Materialaufwurf 9 erzeugt. Nach diesem Setzvorgang wird der Schubkolben 7 in seine Anfangslage zurückgezogen, wie dies 4 zeigt. 3 shows the in the two components 1 and 2 driven nail 4 with the thrust piston in its end position 7 so that the tip of the shaft of the nail 4 on the back of the component 2 exit and thereby a material throw 9 generated. After this setting process, the thrust piston 7 withdrawn to its initial position, like this 4 shows.

Anschließend wird das Setzgerät 5 zum nächsten Fügebereich 3 bzw. Fügestelle bspw. mittels eines Roboters geführt und dort mit dem nächsten Fügevorgang, d. h. zunächst mit der Erwärmung dieses nächsten Fügebereichs begonnen. Es ist auch möglich, die Heizvorrichtung derart an dem Setzgerät anzubringen, dass während der Setzphase bereits der nächste Fügebereich erwärmt wird, um damit ein kontinuierliches Hochgeschwindigkeitsfügen durchführen zu können, d. h. ohne dass das Setzgerät beim Anfahren eines Fügebereichs zur Erwärmung abgebremst werden muss, um nach der Setzphase wieder zum nächsten Fügebereich beschleunigt zu werden. Damit werden sehr kurze Taktzeiten erzielt.Subsequently, the setting device 5 to the next joining area 3 or joint, for example, guided by a robot and there started with the next joining process, ie, first with the heating of this next joining region. It is also possible to mount the heating device on the setting tool in such a way that the next joining region is already heated during the setting phase, in order to be able to carry out a continuous high-speed joining, ie without the setting tool having to be braked when starting a joining region for heating the setting phase to be accelerated again to the next joint area. This achieves very short cycle times.

Der in den 1 bis 4 dargestellte Nagel bzw. Setzbolzen 4 ist lediglich schematisch dargestellt, so dass das Verfahren nicht nur mit einer bestimmten Ausgestaltung bzw. Form, sondern mit allen dem Fachmann bekannten Formen solcher Nägel bzw. des Setzbolzen durchführbar ist.The in the 1 to 4 illustrated nail or setting bolts 4 is shown only schematically, so that the method is not only feasible with a specific configuration or shape, but with all known to those skilled forms of such nails or the setting bolt.

Ähnliches gilt auch für die Materialien der zu fügenden Bauteile 1 und 2. Insbesondere ist das erfindungsgemäße Verfahren mit Bauteilen aus hoch- und höchstfesten Stahlwerkstoffen einsetzbar, wobei auch eines der Bauteile 1 oder 2 aus Aluminium sein kann.The same applies to the materials of the components to be joined 1 and 2 , In particular, the method according to the invention can be used with components made of high-strength and ultra-high-strength steel materials, one of the components also being used 1 or 2 can be made of aluminum.

Bezugszeichenliste LIST OF REFERENCE NUMBERS

11
Bauteilcomponent
22
Bauteilcomponent
33
Fügebereichjoining area
44
Nagel, SetzbolzenNail, setting bolt
55
Setzgerätsetting tool
66
Heizvorrichtungheater
77
Schubkolbenthrust piston
88th
Mundstückmouthpiece
99
Materialaufwurf auf der Unterseite des Bauteils 2 Material aufwurf on the bottom of the component 2

ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION

Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Zitierte PatentliteraturCited patent literature

  • DE 102006002238 A1 [0002] DE 102006002238 A1 [0002]
  • DE 19852809 A1 [0006] DE 19852809 A1 [0006]
  • DE 1440747 A2 [0007] DE 1440747 A2 [0007]
  • DE 19630488 C2 [0007] DE 19630488 C2 [0007]

Claims (14)

Verfahren zur Herstellung einer Nagelverbindung zwischen wenigstens zwei nicht vorgelochten Bauteilen (1, 2) in einem Fügebereich (3) mittels eines von einem Setzgerät (5) eingetriebenen Nagels (4), dadurch gekennzeichnet, dass der Fügebereich (3) der beiden Bauteile (1, 2) vor dem Eintreiben des Nagels (4) lokal thermisch erweicht wird.Method for producing a nail connection between at least two non-pre-punched components ( 1 . 2 ) in a joining area ( 3 ) by means of one of a setting device ( 5 ) driven nail ( 4 ), characterized in that the joining region ( 3 ) of the two components ( 1 . 2 ) before driving the nail ( 4 ) is locally thermally softened. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die thermische Erweichung des Fügebereichs (3) der beiden Bauteile (1, 2) berührungslos erfolgt.A method according to claim 1, characterized in that the thermal softening of the joining region ( 3 ) of the two components ( 1 . 2 ) takes place without contact. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Erweichungstemperatur in Abhängigkeit des Materials der beiden Bauteile (1, 2) erfolgt.Method according to claim 1 or 2, characterized in that the softening temperature depends on the material of the two components ( 1 . 2 ) he follows. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Erwärmung des Fügebereichs (3) zur thermischen Erweichung induktiv erfolgt.Method according to one of the preceding claims, characterized in that the heating of the joining region ( 3 ) is carried out inductively for thermal softening. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Erwärmung der Fügebereichs (3) zur thermischen Erweichung durch Infrarotbestrahlung erfolgt.Method according to one of claims 1 to 3, characterized in that the heating of the joining region ( 3 ) is carried out for thermal softening by infrared radiation. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet dass die Erwärmung der Fügebereichs (3) zur thermischen Erweichung durch Laserbestrahlung erfolgt.Method according to one of claims 1 to 3, characterized in that the heating of the joining region ( 3 ) is carried out for thermal softening by laser irradiation. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Erwärmung der Fügebereichs (3) zur thermischen Erweichung durch Ultraschallbestrahlung erfolgt.Method according to one of claims 1 to 3, characterized in that the heating of the joining region ( 3 ) for thermal softening by ultrasound irradiation takes place. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Erwärmung der Fügebereichs (3) zur thermischen Erweichung durch ein Heißluftgebläse erfolgt.Method according to one of claims 1 to 3, characterized in that the heating of the joining region ( 3 ) for thermal softening by a hot air blower. Vorrichtung zur Durchführung des Verfahrens nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Setzgerät (5) eine Heizvorrichtung (6) umfasst.Device for carrying out the method according to one of the preceding claims, characterized in that the setting device ( 5 ) a heating device ( 6 ). Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, dass die Heizvorrichtung (6) als Induktionsheizung ausgebildet ist.Device according to claim 9, characterized in that the heating device ( 6 ) is designed as induction heating. Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, dass die Heizvorrichtung (6) als Infrarotheizung ausgebildet ist.Device according to claim 9, characterized in that the heating device ( 6 ) is designed as infrared heating. Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, dass die Heizvorrichtung (6) als Laser ausgebildet ist.Device according to claim 9, characterized in that the heating device ( 6 ) is designed as a laser. Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, dass die Heizvorrichtung (6) als Ultraschallheizung ausgebildet ist.Device according to claim 9, characterized in that the heating device ( 6 ) is designed as an ultrasonic heater. Vorrichtung nach Anspruch 9, dadurch gekennzeichnet, dass die Heizvorrichtung (6) als Heizluftgebläse ausgebildet ist.Device according to claim 9, characterized in that the heating device ( 6 ) is designed as Heizluftgebläse.
DE102010006400A 2010-02-01 2010-02-01 Method for establishing nailed connection between non-prepunched components in automobile industry, involves thermal softening joint region of non-prepunched component parts before driving nails by setting apparatus Withdrawn DE102010006400A1 (en)

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CN111438327A (en) * 2020-03-23 2020-07-24 首钢集团有限公司 Mechanical connection method and device for automobile steel
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US9259774B2 (en) 2011-05-03 2016-02-16 GM Global Technology Operations LLC Clinching method and tool for performing the same
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WO2014048885A3 (en) * 2012-09-25 2014-05-30 Boellhoff Verbindungstechnik Gmbh Welding auxiliary joining part and method for connecting components by way of said welding auxiliary joining part
CN103658416A (en) * 2012-09-26 2014-03-26 山东科技大学 Laser-assisted heating device for self-piercing riveting
DE102012220300A1 (en) * 2012-11-08 2014-06-12 Bayerische Motoren Werke Aktiengesellschaft Method for producing punch rivet joint, involves increasing temperature of rivet region in workpiece to preheat temperature, and performing punching rivet process with half-hollow rivet in rivet region to produce punch rivet joint
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CN109922903B (en) * 2016-09-26 2022-05-03 纽弗雷有限公司 Method for joining at least one first component to a second component without preformed holes
WO2019154925A1 (en) * 2018-02-12 2019-08-15 Arnold Umformtechnik Gmbh & Co. Kg Method and device for introducing a joint element
JP2020106040A (en) * 2018-12-26 2020-07-09 Ｊｆｅスチール株式会社 Joining method of plate assembly obtained by superimposing steel plate and light metal plate on each other, joining method of plate assembly obtained by superimposing metal plate and cfrp plate on each other, and manufacturing method of plate assembly using joining methods
CN109746377A (en) * 2019-01-15 2019-05-14 同济大学 Heat auxiliary hot melt self tapping blind riveting device and method
CN111438327A (en) * 2020-03-23 2020-07-24 首钢集团有限公司 Mechanical connection method and device for automobile steel
WO2023016707A1 (en) * 2021-08-13 2023-02-16 Tox Pressotechnik Gmbh & Co. Kg Joining tool unit
WO2023016708A1 (en) * 2021-08-13 2023-02-16 Tox Pressotechnik Gmbh & Co. Kg Joining tool unit

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