WO2001078933A1 - Welding pincers - Google Patents
Welding pincers Download PDFInfo
- Publication number
- WO2001078933A1 WO2001078933A1 PCT/EP2001/003798 EP0103798W WO0178933A1 WO 2001078933 A1 WO2001078933 A1 WO 2001078933A1 EP 0103798 W EP0103798 W EP 0103798W WO 0178933 A1 WO0178933 A1 WO 0178933A1
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- WIPO (PCT)
- Prior art keywords
- welding
- polar arms
- polar
- arms
- base body
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/30—Features relating to electrodes
- B23K11/31—Electrode holders and actuating devices therefor
- B23K11/314—Spot welding guns, e.g. mounted on robots
Definitions
- the invention relates to a welding gun, in particular for spot welding, with two polar arms which are pivotably mounted in a base body and which carry the lines leading to welding heads arranged at the ends of the polar arms.
- Welding guns are used on the one hand for welding tasks to be carried out manually, but on the other hand they are mainly used for welding robots in automated production lines, for example in automobile construction.
- the welding guns are used for spot welding, especially when welding body panels.
- Welding guns can also be used to connect components with an elongated weld.
- Welding guns usually consist of two polar arms, which are pivotally mounted in a basic body. At the ends of the polar arms opposite the base body, the welding heads necessary for performing the welding are provided.
- the pivotable mounting in the basic body makes it possible to move the polar arms apart like pliers and move them towards one another for welding, so that they can clamp the components to be welded in place of the desired weld seam between their welding heads arranged at their ends. Cables are run along or within the polar arms. If electrical or resistance welding is carried out with the welding heads, these lines conduct electricity to the welding heads. In addition, further lines can be provided which lead cooling water to the welding heads in order to cool them in the event of continuous use.
- Welding guns known from practice are made entirely of metal, which has the advantage of a robust construction. It has been shown, however, that the rapid movements of the welding guns that have become necessary with the increasing number of cycles of the automated production systems can no longer be realized with the known welding guns, or that drive motors that require complex and large amounts of energy are necessary. Depending on the welding task, such welding guns can also have a weight of up to 130 kg, while the current welding robots are designed for an average load of 120 kg. The welding robots are therefore overloaded by the weight of the welding guns or operated in the limit range of the possible loads.
- the invention is based on the technical problem of creating a welding gun that can be moved quickly without a large amount of energy and which places little strain on the welding robots.
- the technical problem is solved by a welding gun, the polar arms and / or the base body of which are made of fiber composite material.
- the use of fiber composite material reduces the weight of the polar arms or the base body. This means that less effort is required to move a welding gun designed in this way, so that it can be moved faster with a constant driving force or with a constant speed of movement with less energy.
- the use of fiber composite material offers the possibility of moving the polar arms towards one another more precisely and precisely, since fiber composite material has a very high rigidity which prevents twisting or bending of the polar arms during their movement towards one another.
- Carbon fiber composite materials and / or glass fiber composite materials are suitable as the fiber composite materials to be used.
- Carbon fiber composites have the advantage of being particularly stiff and lighter than glass fiber composites.
- Glass fiber composites offer the advantage that they are cheaper to buy than carbon fiber composites, while still having good stiffness values and low weight compared to metals.
- the polar arms are designed as I-profiles.
- the I-profile in particular offers a particularly torsion-resistant design of a polar arm.
- the flexible use of the welding robots that is regularly desired in automated production lines is particularly supported in that the polar arms are detachably attached to the base body and the lines carried by the polar arms are connected via plug connections to line connections arranged in the base body.
- This arrangement enables the polar arms to be exchanged quickly, so that different polar arms can be quickly exchanged and used depending on the welding task to be carried out.
- Fig. 1 is a welding gun in a plan view and Fig. 2 shows a polar arm shown in Fig. 1
- Fig. 1 shows a welding gun consisting of polar arms 1 and 2 and a base body 3.
- the polar arms 1 and 2 are firmly connected to tong arms 4 and 5 of the base body 3. Since these tong arms 4 and 5 are rotatably mounted with respect to one another, the polar arms 1 and 2, which are firmly connected to them, are also pivotably mounted in the base body 3.
- each polar arm 1 and 2 has a conventional welding head 6 and 7.
- the welding heads 6 and 7 are held in cooled holders 8 and 9.
- the cooled holders 8 and 9 are cooled with cooling water, which is fed to the holders 8 and 9 via feed lines 10 and 11 and discharge lines 12 and 13, which are guided along the polar arms 1 and 2.
- the cross section shown in Fig. 2 through the polar arm 2 shows that the polar arm 2 is designed as an I-profile.
- the feed line 11 and the discharge line 13 are guided in a protected manner on the inside of the I-profile.
- a power line 14, which supplies the welding head 7 with current, is also routed inside the I-profile.
- the cross section, not shown, of the polar arm 1 is similar to that of the polar arm 2 and, in addition to the feed line 10 and discharge line 12 shown in FIG. 1, also has a power line guided by it, which supplies the welding head 6 with current.
- the feed lines 10 and 11 and the discharge lines 12 and 13 are inserted at the connection points of the polar arms 1 and 2 with the tong arms 4 and 5 into quick-release plug connections, not shown, which are sealed during operation.
- the power lines 14 guided in the polar arms 1 and 2 are likewise easily detachable from the power connections provided in the gun arms 4 and 5.
- the polar arms 1 and 2 are made of carbon fiber composite material, while the gun arms 4 and 5 of the base body 3 are made of glass fiber composite material.
- the polar arms 1 and 2 can be moved together with the basic body 3 and moved towards or away from one another by pivoting movements of the tong arms 4 and 5. Since the polar arms are made of carbon fiber composite material and the clamp arms 4 and 5 are made of glass fiber composite material, they can be easily moved without much energy expenditure. Due to the rigidity of the carbon fiber composite material, the polar arms 1 and 2 can be fed to one another with pinpoint accuracy without twisting and bending, so that the welding heads 6 and 7 can be precisely aligned with one another at the desired welding point in order to produce an exact weld seam or a precise welding point.
- the quickly detachable connections of the feed lines 10 and 11 and the discharge lines 12 and 13 and the power lines 14 enable the polar arms to be exchanged quickly, so that starting from a basic body, welding tongs for various welding tasks can be simply removed swap the polar arms can be provided in rapid succession to each other.
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- Engineering & Computer Science (AREA)
- Robotics (AREA)
- Mechanical Engineering (AREA)
- Resistance Welding (AREA)
Abstract
The invention relates to welding pincers especially used for spot welding, comprising two polar arms (1,2) which are pivotally mounted in a base body (3). Said polar arms bear cables (10, 11, 12, 13, 14) leading to welding heads (6,7) arranged on the ends of the polar arms (1,2). The welding pincers can be moved quickly without the need for a large amount of power and inflict only a slight load on the welding robots fitted therewith since the polar arms (1,2) and/or the base body (3) are made of a fiber reinforced material.
Description
Schweißzange Beschreibung Welding gun description
Die Erfindung betrifft eine Schweißzange, insbesondere für das Punktschweißen, mit zwei in einem Grundkorper schwenkbar gelagerten Polarmen, die die zu an den Enden der Polarme angeordneten Schweißkδpfen führenden Leitungen tragen.The invention relates to a welding gun, in particular for spot welding, with two polar arms which are pivotably mounted in a base body and which carry the lines leading to welding heads arranged at the ends of the polar arms.
Schweißzangen werden zum einen für manuell durchzuführende Schweißaufgaben verwendet, zum anderen werden sie jedoch hauptsächlich bei Schweißrobotern in automatisierten Fertigungsstraßen, bspw. im Automobilbau, eingesetzt. Be- sonders beim Verschweißen von Karosserieblechteilen werden die Schweißzangen zur Durchführung von Punktschweißungen verwendet. Schweißzangen können aber auch dafür eingesetzt werden, Bauteile mit einer länglichen Schweißnaht zu verbinden.Welding guns are used on the one hand for welding tasks to be carried out manually, but on the other hand they are mainly used for welding robots in automated production lines, for example in automobile construction. The welding guns are used for spot welding, especially when welding body panels. Welding guns can also be used to connect components with an elongated weld.
Schweißzangen bestehen in der Regel aus zwei Polarmen, die schwenkbar in einem Grundkorper gelagert sind. An den dem Grundkorper gegenüberliegenden Enden der Polarme sind die für die Durchführung der Schweißung notwendigen Schweißköpfe vorgesehen. Die schwenkbare Lagerung in dem Grundkorper ermöglicht es, die Polarme zangenartig auseinander zu bewegen und zur Schweißung aufeinander zu zu bewegen, so daß sie die zu verschweißenden Bauteile an der Stelle der gewünschten Schweißnaht zwischen ihren an ihren Enden angeordneten Schweißkδpfen einklemmen können.
Entlang oder innerhalb der Polarme werden Leitungen geführt. Wird mit den Schweißkδpfen eine Elektro- oder WiderStandsschweißung durchgeführt, so führen diese Leitungen Strom zu den Schweißkδpfen. Ergänzend können weitere Leitungen vorgesehen sein, die Kühlwasser zu den Schweißköpfen führen, um diese bei einer Dauerbeanspruchung zu kühlen.Welding guns usually consist of two polar arms, which are pivotally mounted in a basic body. At the ends of the polar arms opposite the base body, the welding heads necessary for performing the welding are provided. The pivotable mounting in the basic body makes it possible to move the polar arms apart like pliers and move them towards one another for welding, so that they can clamp the components to be welded in place of the desired weld seam between their welding heads arranged at their ends. Cables are run along or within the polar arms. If electrical or resistance welding is carried out with the welding heads, these lines conduct electricity to the welding heads. In addition, further lines can be provided which lead cooling water to the welding heads in order to cool them in the event of continuous use.
Aus der Praxis bekannte Schweißzangen sind gänzlich aus Metall hergestellt, was den Vorteil eines robusten Auf- baus mit sich bringt. Es hat sich jedoch gezeigt, daß die mit steigenden Taktzahlen der automatisierten Fertigungsanlagen notwendig gewordenen raschen Bewegungen der Schweißzangen mit den bekannten Schweißzangen nicht mehr realisiert werden können, bzw. aufwendige und große Energiemengen verbrauchende Antriebsmotoren notwendig machen. Je nach Schweißaufgabe können derartige Schweißzangen außerdem ein Gewicht von bis zu 130 kg aufweisen, während die derzeitigen Schweißroboter für eine durchschnittliche Traglast von 120 kg ausgelegt sind. Die Schweißroboter werden deshalb durch das Gewicht der Schweißzangen überbelastet, bzw. im Grenzbereich der möglichen Belastungen betrieben.Welding guns known from practice are made entirely of metal, which has the advantage of a robust construction. It has been shown, however, that the rapid movements of the welding guns that have become necessary with the increasing number of cycles of the automated production systems can no longer be realized with the known welding guns, or that drive motors that require complex and large amounts of energy are necessary. Depending on the welding task, such welding guns can also have a weight of up to 130 kg, while the current welding robots are designed for an average load of 120 kg. The welding robots are therefore overloaded by the weight of the welding guns or operated in the limit range of the possible loads.
Vor diesem Hintergrund liegt der Erfindung das technische Problem zugrunde, eine Schweißzange zu schaffen, die ohne großen Energieaufwand schnell bewegt werden kann und die die Schweißroboter wenig belastet.Against this background, the invention is based on the technical problem of creating a welding gun that can be moved quickly without a large amount of energy and which places little strain on the welding robots.
Das technische Problem wird durch eine Schweißzange gelöst, deren Polarme und/oder deren Grundkörper aus Faserverbundwerkstoff hergestellt sind.
Der Einsatz von Faserverbundwerkstoff reduziert das Gewicht der Polarme, bzw. des Grundkδrpers . Somit ist ein geringerer Kraftaufwand notwendig, um eine derart ausge- staltete Schweißzange zu bewegen, so daß diese bei gleichbleibender Antriebskraft rascher oder bei gleichbleibender Bewegungsgeschwindigkeit mit geringerem energetischen Einsatz bewegt werden kann. Zusätzlich bietet der Einsatz von Faserverbundwerkstoff die Möglichkeit, die Polarme punktgenauer und präziser aufeinander zu zu bewegen, da Faserverbundwerkstoff eine sehr hohe Steifig- keit aufweist, die ein Verwinden oder Verbiegen der Polarme während ihrer Bewegung aufeinander zu verhindert.The technical problem is solved by a welding gun, the polar arms and / or the base body of which are made of fiber composite material. The use of fiber composite material reduces the weight of the polar arms or the base body. This means that less effort is required to move a welding gun designed in this way, so that it can be moved faster with a constant driving force or with a constant speed of movement with less energy. In addition, the use of fiber composite material offers the possibility of moving the polar arms towards one another more precisely and precisely, since fiber composite material has a very high rigidity which prevents twisting or bending of the polar arms during their movement towards one another.
Als einzusetzende Faserverbundwerkstoffe bieten sich Kohlefaserverbundwerkstoffe und/oder Glasfaserverbundwerk- stoffe an. Kohlefaserverbundwerkstoffe haben den Vorteil besonders steif und gegenüber Glasfaserverbundwerkstoffen leichter zu sein. Glasfaserverbundwerkstoffe bieten den Vorteil, daß sie bei immer noch guten Steifigkeitswerten und im Vergleich zu Metallen geringem Gewicht gegenüber Kohlefaserverbundwerkstoffen günstiger in der Anschaffung sind.Carbon fiber composite materials and / or glass fiber composite materials are suitable as the fiber composite materials to be used. Carbon fiber composites have the advantage of being particularly stiff and lighter than glass fiber composites. Glass fiber composites offer the advantage that they are cheaper to buy than carbon fiber composites, while still having good stiffness values and low weight compared to metals.
Besonders zweckmäßig ist es deshalb, die Polarme aus Kohlefaserverbundwerkstoff herzustellen, um somit bei den hauptsächlich bewegten Teilen die Vorteile der hohen Steifigkeit und des geringen Gewichtes auszunutzen, und den Grundkorper aus Glasfaserverbundwerkstoffen herzu- stellen, um somit eine Kostenreduzierung zu ermöglichen.
Die Steifigkeit der Polarme und damit die Möglichkeiten einer präzisen Führung der Bewegung der Polarme wird dadurch in vorteilhafter Weise ergänzt, daß die Polarme als I-Profile ausgestaltet sind. Besonders das I-Profil bie- tet eine in sich besonders verwindungssteife Ausgestaltung eines Polarms .It is therefore particularly expedient to manufacture the polar arms from carbon fiber composite material in order to thus take advantage of the high rigidity and low weight of the mainly moving parts, and to manufacture the basic body from glass fiber composite materials in order to enable a cost reduction. The rigidity of the polar arms and thus the possibilities for precise guidance of the movement of the polar arms are advantageously supplemented in that the polar arms are designed as I-profiles. The I-profile in particular offers a particularly torsion-resistant design of a polar arm.
Für die behinderungsfreie Bewegung der Polarme ist es zweckmäßig, die Leitungen innenanliegend in dem I-Profil zu führen. Auf diese Weise werden diese Leitungen durch das I-Profil geschützt, wodurch verhindert wird, daß die Leitungen während einer Bewegung an nicht mit den Polarmen mitbewegten Teilen hängen bleiben und beschädigt werden.For the unimpeded movement of the Polarme, it is advisable to route the cables inside the I-profile. In this way, these lines are protected by the I-profile, which prevents the lines from getting caught and being damaged during movement on parts which are not moved by the polar arms.
Die bei automatisierten Fertigungsstraßen regelmäßig gewünschte flexible Einsetzbarkeit der Schweißroboter wird besonders dadurch unterstützt, daß die Polarme lösbar an dem Grundkörper befestigt sind und die von den Polarmen getragenen Leitungen über Steckverbindungen mit in dem Grundkörper angeordneten Leitungsanschlüssen verbunden sind. Diese Anordnung ermöglicht es nämlich, die Polarme rasch auszutauschen, so daß je nach durchzuführender Schweißaufgabe unterschiedliche Polarme rasch miteinander ausgetauscht und eingesetzt werden können.The flexible use of the welding robots that is regularly desired in automated production lines is particularly supported in that the polar arms are detachably attached to the base body and the lines carried by the polar arms are connected via plug connections to line connections arranged in the base body. This arrangement enables the polar arms to be exchanged quickly, so that different polar arms can be quickly exchanged and used depending on the welding task to be carried out.
Nachfolgend wird die Erfindung anhand einer lediglich ein Ausführungsbeispiel darstellenden Zeichnung näher erläutert. In der Zeichnung zeigen:The invention is explained in more detail below on the basis of a drawing which represents only one exemplary embodiment. The drawing shows:
Fig. 1 eine Schweißzange in einer Draufsicht und
Fig. 2 einen Polarm der in Fig. 1 dargestelltenFig. 1 is a welding gun in a plan view and Fig. 2 shows a polar arm shown in Fig. 1
Schweißzange in einer Schnittansicht entlang der Linie II-II in Fig. 1.Welding gun in a sectional view along the line II-II in Fig. 1st
Fig. 1 zeigt eine Schweißzange, die aus Polarmen 1 und 2 und einem Grundkörper 3 besteht. Die Polarme 1 und 2 sind fest mit Zangenarmen 4 und 5 des Grundkörpers 3 verbunden. Da diese Zangenarme 4 und 5 drehbar zueinander gelagert sind, sind auch die fest mit ihnen verbundenen Po- lärme 1 und 2 schwenkbar in dem Grundkörper 3 gelagert.Fig. 1 shows a welding gun consisting of polar arms 1 and 2 and a base body 3. The polar arms 1 and 2 are firmly connected to tong arms 4 and 5 of the base body 3. Since these tong arms 4 and 5 are rotatably mounted with respect to one another, the polar arms 1 and 2, which are firmly connected to them, are also pivotably mounted in the base body 3.
An dem dem Grundkorper abgewandten Ende weist jeder Polarm 1 und 2 einen herkömmlichen Schweißkopf 6 und 7 auf. Die Schweißköpfe 6 und 7 sind in gekühlten Halterungen 8 und 9 gehalten. Die gekühlten Halterungen 8 und 9 werden mit Kühlwasser gekühlt, das über Zuführleitungen 10 und 11 und Abführleitungen 12 und 13, die entlang der Polarme 1 und 2 geführt werden, den Halterungen 8 und 9 zugeführt wird.At the end facing away from the base body, each polar arm 1 and 2 has a conventional welding head 6 and 7. The welding heads 6 and 7 are held in cooled holders 8 and 9. The cooled holders 8 and 9 are cooled with cooling water, which is fed to the holders 8 and 9 via feed lines 10 and 11 and discharge lines 12 and 13, which are guided along the polar arms 1 and 2.
Der in Fig. 2 dargestellte Querschnitt durch den Polarm 2 zeigt, daß der Polarm 2 als I-Profil ausgebildet ist. Innenanliegend in dem I-Profil werden die Zuführleitung 11 und die Abführleitung 13 geschützt geführt. Ebenfalls in- nenanliegend in dem I-Profil wird eine Stromleitung 14 geführt, die den Schweißkopf 7 mit Strom versorgt. Der nicht darstellte Querschnitt des Polarms 1 ist dem des Polarms 2 ähnlich und weist neben der in Fig. 1 dargestellten Zuführleitung 10 und Abführleitung 12 ebenfalls eine vom ihm geführte Stromleitung auf, die den Schweißkopf 6 mit Strom versorgt.
Die Zuführleitungen 10 und 11 und die Abführleitungen 12 und 13 sind an den Verbindungsstellen der Polarme 1 und 2 mit den Zangenarmen 4 und 5 in schnell zu lösende, im Betrieb dichte, nicht dargestellte Steckverbindungen einge- führt . Die in den Polarmen 1 und 2 geführten Stromleitungen 14 stehen in ebenfalls leicht zu lösender Verbindung mit in den Zangenarmen 4 und 5 vorgesehenen Stromanschlüssen.The cross section shown in Fig. 2 through the polar arm 2 shows that the polar arm 2 is designed as an I-profile. The feed line 11 and the discharge line 13 are guided in a protected manner on the inside of the I-profile. A power line 14, which supplies the welding head 7 with current, is also routed inside the I-profile. The cross section, not shown, of the polar arm 1 is similar to that of the polar arm 2 and, in addition to the feed line 10 and discharge line 12 shown in FIG. 1, also has a power line guided by it, which supplies the welding head 6 with current. The feed lines 10 and 11 and the discharge lines 12 and 13 are inserted at the connection points of the polar arms 1 and 2 with the tong arms 4 and 5 into quick-release plug connections, not shown, which are sealed during operation. The power lines 14 guided in the polar arms 1 and 2 are likewise easily detachable from the power connections provided in the gun arms 4 and 5.
Die Polarme 1 und 2 sind aus Kohlefaserverbundwerkstoff gefertigt, während die Zangenarme 4 und 5 des Grundkörpers 3 aus Glasfaserverbundwerkstoff gefertigt sind.The polar arms 1 and 2 are made of carbon fiber composite material, while the gun arms 4 and 5 of the base body 3 are made of glass fiber composite material.
Die Polarme 1 und 2 können mit dem Grundkorper 3 zusammen bewegt werden und durch Schwenkbewegungen der Zangenarme 4 und 5 aufeinander zu oder voneinander fort bewegt werden. Da die Polarme aus Kohlefaserverbundwerkstoff und die Zangenarme 4 und 5 aus Glasfaserverbundwerkstoff hergestellt sind, lassen sie sich ohne großen Energieaufwand leicht bewegen. Durch die Steifigkeit des Kohlefaserverbundwerksto f können die Polarme 1 und 2 punktgenau ohne Verwindungen und Verbiegungen aufeinander zugeführt werden, so daß die Schweißköpfe 6 und 7 an der gewünschten Schweißstelle präzise zueinander ausgerichtet werden kδn- nen, um eine genaue Schweißnaht oder einen genauen Schweißpunkt herzustellen.The polar arms 1 and 2 can be moved together with the basic body 3 and moved towards or away from one another by pivoting movements of the tong arms 4 and 5. Since the polar arms are made of carbon fiber composite material and the clamp arms 4 and 5 are made of glass fiber composite material, they can be easily moved without much energy expenditure. Due to the rigidity of the carbon fiber composite material, the polar arms 1 and 2 can be fed to one another with pinpoint accuracy without twisting and bending, so that the welding heads 6 and 7 can be precisely aligned with one another at the desired welding point in order to produce an exact weld seam or a precise welding point.
Die schnell lösbaren Verbindungen der Zuführleitungen 10 und 11 und der Abführleitungen 12 und 13 sowie der Strom- leitungen 14 ermöglichen einen raschen Austausch der Polarme, so daß ausgehend von einem Grundkorper Schweißzangen für verschiedene Schweißaufgaben durch einfaches Aus-
tauschen der Polarme in rascher Abfolge zueinander bereit gestellt werden können.
The quickly detachable connections of the feed lines 10 and 11 and the discharge lines 12 and 13 and the power lines 14 enable the polar arms to be exchanged quickly, so that starting from a basic body, welding tongs for various welding tasks can be simply removed swap the polar arms can be provided in rapid succession to each other.
Bezugszeichenliste:LIST OF REFERENCE NUMBERS
1 Polarm1 polar arm
2 Polarm2 polar arm
3 Grundkörper 4 Zangenarm3 base body 4 pliers arm
5 Zangenarm5 pliers arm
6 Schweißkopf6 welding head
7 Schweißkopf7 welding head
8 gekühlte Halterung für 6 9 gekühlte Halterung für 78 cooled holder for 6 9 cooled holder for 7
10 Zuführleitung für Kühlwasser10 supply line for cooling water
11 Zuführleitung für Kühlwasser11 Supply line for cooling water
12 Abführleitung für Kühlwasser12 Drain line for cooling water
13 Abführleitung für Kühlwasser 14 Stromleitung
13 Drain line for cooling water 14 Power line
Claims
1. Schweißzange, insbesondere für das Punktschweißen, mit zwei in einem Grundkorper (3) schwenkbar gelagerten Polarmen (1,2), die die zu den an den Enden der Polarme (1,2) angeordneten Schweißkδpfen (6,7) führenden Leitungen (10,11,12,13,14) tragen, dadurch gekennzeichnet, daß die Polarme (1,2) und/oder der Grundkörper (3) aus Faserverbundwerkstoff hergestellt sind.1. welding gun, in particular for spot welding, with two polar arms (1, 2) which are pivotably mounted in a base body (3) and which lead to the welding heads (6, 7) leading to the welding heads (6, 7) arranged at the ends of the polar arms (1, 2) 10, 11, 12, 13, 14), characterized in that the polar arms (1, 2) and / or the base body (3) are made of fiber composite material.
2. Schweißzange nach Anspruch 1, dadurch gekennzeichnet, daß die Polarme (1,2) und/oder der Grundkörper (3) aus Kohlefaserverbund- Werkstoff hergestellt sind.2. welding gun according to claim 1, characterized in that the polar arms (1,2) and / or the base body (3) are made of carbon fiber composite material.
3. Schweißzange nach Anspruch 1 oder 2 , dadurch gekennzeichnet, daß die Polarme (1,2) und/oder der Grundkörper (3) aus Glasfaserverbundwerkstoff herstellt ist.3. welding gun according to claim 1 or 2, characterized in that the polar arms (1,2) and / or the base body (3) is made of glass fiber composite material.
4. Schweißzange nach einem der Ansprüche 1 bis 3 , dadurch gekennzeichnet, daß die Polarme (1,2) als I- Profil ausgestaltet sind.4. welding gun according to one of claims 1 to 3, characterized in that the polar arms (1,2) are designed as an I-profile.
5. Schweißzange nach Anspruch 4, dadurch gekennzeichnet, daß die Leitungen (10,11,12,13,14), insbesondere die Stromleitungen und Kühlwasserleitungen, innenanliegend in dem I-Profil geführt sind.5. welding gun according to claim 4, characterized in that the lines (10, 11, 12, 13, 14), in particular the power lines and cooling water lines, are guided inside the I-profile.
Schweißzange nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Polarme (1,2) lösbar an dem Grundkorper (3) befestigt sind und die von den Polarmen (1,2) getragenen Leitungen (10,11,12,13,14) über Steckverbindungen mit in dem Grundkörper (3) angeordneten Leitungsanschlüssen verbunden sind. Welding tongs according to one of claims 1 to 5, characterized in that the polar arms (1, 2) are detachably attached to the base body (3) and the lines (10, 11, 12, 13) carried by the polar arms (1, 2) 14) are connected via plug connections to line connections arranged in the base body (3).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2000118753 DE10018753A1 (en) | 2000-04-15 | 2000-04-15 | Welding tongs used in spot welding has pole arms and a base body made from a fiber composite material |
| DE10018753.6 | 2000-04-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2001078933A1 true WO2001078933A1 (en) | 2001-10-25 |
Family
ID=7638879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2001/003798 WO2001078933A1 (en) | 2000-04-15 | 2001-04-04 | Welding pincers |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE10018753A1 (en) |
| WO (1) | WO2001078933A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007054980A1 (en) | 2007-11-17 | 2008-08-28 | Daimler Ag | Welding electrode holder for an industrial robot is an aluminum alloy weight-optimized frame |
| DE102008039435A1 (en) * | 2008-08-25 | 2010-03-04 | Volkswagen Ag | Welding tongs used in resistance spot welding comprise arms each holding an electrode for welding a workpiece positioned between the electrodes moving on a circular path and on a linear path against each other |
| CN102873485B (en) * | 2012-09-06 | 2015-03-25 | 奇瑞汽车股份有限公司 | Soldering pliers hanging capable of rotating axially and adjusting angle |
| DE102014207425A1 (en) * | 2014-04-17 | 2015-10-22 | Volkswagen Aktiengesellschaft | Spot welding gun |
| DE102014006921A1 (en) | 2014-05-10 | 2014-12-04 | Daimler Ag | Welding tongs, in particular for performing a spot welding process |
| DE102016207796A1 (en) | 2016-05-04 | 2017-11-09 | Volkswagen Aktiengesellschaft | Clamping device for clamping a gun arm of a joining pliers |
| DE102017116089B4 (en) | 2017-07-18 | 2023-11-30 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Robot welding gun |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2468433A1 (en) * | 1979-10-26 | 1981-05-08 | Daimler Benz Ag | Welding tongs for resistance welding robots - where reed switches control position of lightweight tong arms made of polymer |
| EP0329434A2 (en) * | 1988-02-19 | 1989-08-23 | Mitsubishi Jukogyo Kabushiki Kaisha | Textile structure for reinforcing structural members such as beams made of composite material, and method of producing the same |
| JPH0292472A (en) * | 1988-09-28 | 1990-04-03 | Akihiro Saito | Pressure device for resistance welding |
| EP0391551A1 (en) * | 1989-04-03 | 1990-10-10 | General Motors Corporation | Composite weld gun and method of making same |
| EP0417687A1 (en) * | 1989-09-12 | 1991-03-20 | Hans Flohe GmbH & Co. | Welding gun for industrial robot |
| EP0576739A1 (en) * | 1992-07-01 | 1994-01-05 | GERBI MARIO S.r.l. Fonderia e Lavorazione Metalli | Welding gun |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5705783A (en) * | 1995-07-05 | 1998-01-06 | Ford Motor Company | Copper core weld gun |
| DE19651329B4 (en) * | 1996-12-11 | 2007-10-25 | Technische Universität Dresden | High-performance lightweight pliers |
-
2000
- 2000-04-15 DE DE2000118753 patent/DE10018753A1/en not_active Withdrawn
-
2001
- 2001-04-04 WO PCT/EP2001/003798 patent/WO2001078933A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2468433A1 (en) * | 1979-10-26 | 1981-05-08 | Daimler Benz Ag | Welding tongs for resistance welding robots - where reed switches control position of lightweight tong arms made of polymer |
| EP0329434A2 (en) * | 1988-02-19 | 1989-08-23 | Mitsubishi Jukogyo Kabushiki Kaisha | Textile structure for reinforcing structural members such as beams made of composite material, and method of producing the same |
| JPH0292472A (en) * | 1988-09-28 | 1990-04-03 | Akihiro Saito | Pressure device for resistance welding |
| EP0391551A1 (en) * | 1989-04-03 | 1990-10-10 | General Motors Corporation | Composite weld gun and method of making same |
| EP0417687A1 (en) * | 1989-09-12 | 1991-03-20 | Hans Flohe GmbH & Co. | Welding gun for industrial robot |
| EP0576739A1 (en) * | 1992-07-01 | 1994-01-05 | GERBI MARIO S.r.l. Fonderia e Lavorazione Metalli | Welding gun |
Non-Patent Citations (1)
| Title |
|---|
| PATENT ABSTRACTS OF JAPAN vol. 014, no. 291 (M - 0989) 22 June 1990 (1990-06-22) * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10018753A1 (en) | 2001-10-25 |
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