• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a TIG welding torch (1) having a burner head (2) with at least one non-consumable electrode (3) and at least one feed device (4) for a consumable consumable wire (5), the longitudinal axis of each electrode (3) and the Longitudinal axis of each wire-shaped filler material (5) intersect each other in a Tool Center Point (TCP), and the burner head (2) adjustably arranged on a holder (6) and in at least two different positions at the same Tool Center Point (TCP) can be fixed. To achieve a compact construction and greater flexibility in welding, the holder (6) is elongated and quasi V-shaped, and has this at the front end a circular guide (7), in which guide (7) with the burner head ( 2) connected carriage (8) can be arranged, so that the outer dimensions of the welding torch (1) during an adjustment of the burner head (2) are not significantly changed.
    公开号:AT516445A1
    申请号:T50803/2014
    申请日:2014-11-04
    公开日:2016-05-15
    发明作者:
    申请人:Fronius Int Gmbh；
    IPC主号:
    专利说明:

    The invention relates to a TIG welding torch having a burner head with at least one non-consumable electrode and at least one supply device for a consumable consumable filler, wherein the longitudinal axis of each electrode and the longitudinal axis of each wire-shaped filler material intersect each other in a Tool Center Point (TCP). TIG (tungsten inert gas) welding torches include at least one, preferably two, non-consumable tungsten temperature resistant electrodes for forming an arc burning between the electrodes and the workpiece to be machined. The material for filling a gap between two workpieces or for the jobs on the surface of the workpiece in the so-called. Contract welding is supplied via a wire-shaped filler, which is introduced into the arc, where a heating and liquefaction of the filler takes place. When supplying different materials and several wire-shaped filler materials can be supplied to the welding torch. To the at least one non-consumable electrode, the burner head with the burner nozzle is arranged, in which the protective gas commonly used in welding (argon, helium or the like.) Is supplied, whereby the ignition characteristics and the stability of the arc can be optimized. The required for the ignition of the arc power supply via appropriate cables to the burner head and the electrodes. The at least one wire-shaped filler cuts the arc in the so-called Tool Center Point (TCP). When using different burner heads or pipe bends, care is taken to ensure that this Tool Center Point always remains the same, so that an adjustment of the feeders for the consumable wire-shaped filler material when changing the burner head or pipe bend is not necessary.
    For example, US Pat. No. 7,329,827 B2 describes a TIG welding torch of the type in question, which is relatively large in terms of dimensions, so that welding, in particular build-up welding, not all workpiece geometries is possible. For example, such a welding torch is not suitable for build-up welding in the interior of pipes, as is carried out, for example, in so-called cladding, for example in boiler pipes or pipelines. Such a cladding process is performed, for example, to protect against corrosion and abrasion by applying certain more resistant materials to the inner surface of such pipes.
    The object of the present invention is to provide an above-mentioned TIG welding torch, which has the smallest possible size and, moreover, allows optimum application with differently shaped workpieces. Disadvantages of known TIG welding torches should be avoided or at least reduced.
    This object is achieved in that the burner head of the TIG welding torch is adjustably arranged on a holder and in at least two different positions at the same Tool Center Point (TCP) is fixed. Due to the adjustability of the burner head in at least two, preferably more, positions, a simple adaptation of the TIG welding torch to the respective conditions, for example during build-up welding in the interior of a pipe, be made without the TIG welding torch or its burner head has to be replaced. The adjustability of the burner head on the holder of the TIG welding torch ensures a consistent Tool Center Point, whereby the at least one feeder for the consumable wire-shaped filler material does not have to be adjusted in a change in the position of the burner head. Thus, the conversion of the TIG torch or the adjustment of the burner head can be done very quickly and easily, without the welding process must be interrupted for a long time.
    Preferably, the burner head is arranged steplessly adjustable on the holder. With a stepless adjustability of the burner head on the holder, an optimal angle of the burner head with respect to the at least one wire-shaped additive material and the workpiece to be machined can be created. For example, with such a TIG welding torch, by correspondingly changing the position of the torch head, both horizontal and vertical welding operations can be performed.
    According to one embodiment of the invention, the holder for the burner head is formed by a circular arc-shaped guide, in which guide a carriage connected to the burner head can be arranged. Such a construction of the holder allows a very simple stepless adjustability of the burner head by this attached to a correspondingly shaped carriage and the carriage is arranged in the circular arc-shaped guide in the desired position. The carriage can be adapted to the shape of the respective burner head.
    The circular arc guide includes an angular range of 45 ° to 120 °, preferably 90 °. By means of such an angular range, most positions of the burner head to the workpiece and thus most welding methods or welding positions can be optimally realized.
    Advantageously, fixing elements are provided for fixing the carriage in the guide in the respective desired position. Such fixing can be made very simple and inexpensive, for example by clamping screws or the like.
    If a device for fastening the at least one feed device for the wire-shaped filler material is preferably arranged on the holder, optimal maintenance of the Tool Center Point (TCP) can be achieved. The fastening device for the at least one feed device for the wire-shaped filler material is arranged at a corresponding point of the holder of the TIG welding torch, so that the adjustability of the burner head is not hindered. For example, the fastening device can be arranged on a correspondingly shaped bracket of the holder on the opposite side of the holder, so that the burner head is arranged substantially between the holder and the at least one feed device for the wire-shaped filler material. Alternatively, the fastening device may also be mounted on a burner body.
    The fastening device is preferably adjustable on the
    Mounted so that the Tool Center Point (TCP) can be adjusted or readjusted. The adjustability can be realized easily and inexpensively, for example, with screws arranged in oblong holes.
    According to a further feature of the invention, the fastening device is formed by a cuboid, in which the feed device for the wire-shaped filler material can be arranged. This represents a simple and cost-effective implementation of the fastening device. Of course, the holder with the fastening device for the at least one feed device for the wire-shaped filler material can also be made in one piece.
    The at least one feed device for the wire-shaped additive material may be formed by a tube of deformable material, for example copper. This represents a simple and flexible realization variant.
    The holder for the burner head is usually connected to a burner body, which in turn is connected to the usual hose package containing the necessary cables and wires from the welding power source to the welding torch or burner head. The burner body is usually attached to corresponding automated equipment, such as a turning device, so as to allow endless rotation of the TIG welding torch. The torch body can also be attached to a manipulator of a welding robot.
    The embodiment of the TIG welding torch according to the invention is characterized by a space-saving design, which facilitates or enables in particular the build-up welding in the interior of hollow workpieces, for example pipes. The adjustment of the burner head is preferably carried out so that the outer dimensions of the welding torch when adjusting the burner head are not significantly changed. Preferably, the outer dimensions of the TIG welding torch are determined by the diameter of the burner head.
    The invention will be explained in more detail with reference to the accompanying drawings, which show an embodiment. Show in it
    Fig. 1 is a perspective view of an embodiment of a TIG welding torch;
    FIG. 2 shows a side view of the TIG welding torch according to FIG. 1 at a first position of the burner head; FIG. and
    Fig. 3 is a side view of the TIG welding torch of FIG. 2 with adjusted burner head.
    1 shows a perspective view of an embodiment of a TIG welding torch 1. The TIG welding torch 1 includes a burner head 2, in which at least one, preferably two, non-consumable electrodes 3, preferably made of tungsten, are arranged. The non-consumable electrodes 3 are connected with respective cables 14 to the welding power source (not shown) so as to be able to supply the electrodes 3 with a corresponding current. Via a gas supply line 15, the protective gas usually used (argon, helium or the like.) Is transported to the weld. Between the at least one non-consumable electrode 3 and the workpiece W to be machined, the arc L is ignited, which melts at least one wire-fed filler material 5 supplied via a feeder 4 in a tool center point (TCP), so that this molten filler material 5 is, for example, during build-up welding is applied to the surface of the workpiece W. The longitudinal axis of each electrode 3 and the longitudinal axis of each wire-shaped filler material 5 intersect each other in this Tool Center Point (TCP). According to the invention, it is now provided that the burner head 2 of the TIG welding torch 1 is adjustably arranged on a holder 6 and can be fixed in at least two different positions, preferably a plurality of positions, possibly steplessly, with the tool center point (TCP) remaining the same. Similarly, in the adjustment of the burner head 2, the position of the tips of the electrodes 3 remain the same or the position of the center between the tips of several electrodes 3. At the end of the holder 6, a channel may be arranged, which extends in the burner body 13 and then into the with the burner body 13 connected hose package 16 passes. In the hose package 16 may further cooling lines for guiding a cooling fluid for cooling the TIG welding torch 1 may be included.
    In conjunction with FIGS. 2 and 3, an embodiment of the TIG welding torch 1 consists of an elongate quasi V-shaped holder 6, which contains a circular guide 7 at the front end, in which a carriage 8 connected to the burner head 2 can be arranged is, so that an adjustability of the burner head 2 in an angular range α of about 60 ° at a constant Tool Center Point (TCP) is possible. With a corresponding design of the guide 7 and a larger Winkelbreich α can be achieved. The at least one feed device 4 for the wire-shaped filler material 5 is arranged on the opposite side of the holder 6, so that the burner head 2 can be freely adjusted in position without having to change the feed device 4 and thus the Tool Center Point (TCP). The fixation of the burner head 2 in the desired position preferably takes place via fixing elements 9, such as e.g. Screws. During the adjustment of the burner head 2, the TCP is always maintained, whereby the change can be made easily and quickly and the TCP does not need to be reset. The feed device 4 for the wire-shaped filler material 5 may be formed by a tube 11 of deformable material, such as copper. Thus, the wire-shaped filler material 5 can be promoted in an optimal manner and with as little friction as possible to the TCP. On the holder 6 or on the burner body 13, a device 12 for fixing the at least one feed device 4 for the wire-shaped filler material 5 is arranged. This device 12 for fastening the feed device 4 may include, for example, a cuboid 10, in which the feed device 4 is arranged in the form of a tube 11. If the cuboid 10 is arranged pivotably in the profile-shaped fastening device 12, an optimal low-friction promotion of the wire-shaped filler material 5 in the feeder 4 can be ensured.
    The TIG welding torch 1 thus enables a simple and rapid change in position of the burner head 2 for various welding methods and / or welding positions, in particular in the interior of tubes during build-up welding. A change in the position of the TIG welding torch 1 is particularly relevant when the inner diameter of a tubular workpiece
    Piece, for example, conically tapered or gradually reduced.
    The TIG welding torch 1 is characterized by a very compact and space-saving design and allows both horizontal and vertical welding without changing the TIG welding torch 1 due to the adjustability of the torch head 2 by merely changing the position of the torch head 2.
    权利要求:
    Claims (10)
    [1]
    1. TIG welding torch (1) having a burner head (2) with at least one non-consumable electrode (3) and at least one feed device (4) for a consumable wire-shaped auxiliary material (5), wherein the longitudinal axis of each electrode (3) and the longitudinal axis of each wire-shaped filler material (5) intersect each other in a tool center point (TCP), characterized in that the burner head (2) is adjustably arranged on a holder (6) and in at least two different positions at the same tool center point ( TCP) is fixable.
    [2]
    2. TIG welding torch (1) according to claim 1, characterized in that the burner head (2) is infinitely adjustable on the holder (6).
    [3]
    3. TIG welding torch (1) according to claim 1 or 2, characterized in that the holder (6) for the burner head (2) by a circular arc-shaped guide (7) is formed, in which guide (7) with the burner head ( 2) connected carriage (8) can be arranged.
    [4]
    4. TIG welding torch (1) according to claim 3, characterized in that the circular arc-shaped guide (7) includes an angular range (CC) of 45 ° to 120 °, preferably 90 °.
    [5]
    5. TIG welding torch (1) according to claim 3 or 4, characterized in that fixing elements (9) for fixing the carriage (8) in the guide (7) are provided.
    [6]
    6. TIG welding torch (1) according to one of claims 1 to 5, characterized in that preferably on the holder (6) means (12) for fixing the at least one feed device (4) for the wire-shaped filler material (5) is arranged ,
    [7]
    7. TIG welding torch (1) according to claim 6, characterized in that the fastening device (12) is adjustably arranged on the holder (6).
    [8]
    8. TIG welding torch (1) according to claim 6 or 7, characterized in that the fastening device (12) by a cuboid (10) is formed, in which the feed device (4) for the wire-shaped filler material (5) can be arranged.
    [9]
    9. TIG welding torch (1) according to one of claims 1 to 8, characterized in that the at least one feed device (4) for the wire-shaped filler material (5) by a tube (11) of deformable material, such as copper, is formed.
    [10]
    10. TIG welding torch (1) according to one of claims 1 to 9, characterized in that the holder (6) for the burner head (2) with a burner body (13) is connected.
    类似技术:
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    DE963175C|1957-05-02|Device for welding metallic pins onto a pipe or the like with the aid of an electric arc
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    同族专利:
    公开号 | 公开日
    CN105562901A|2016-05-11|
    DE102015211854A1|2016-05-04|
    CN105562901B|2018-10-09|
    EP3017901B1|2019-01-30|
    AT516445B1|2016-08-15|
    EP3017901A1|2016-05-11|
    US20160121423A1|2016-05-05|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    JP2010247184A|2009-04-15|2010-11-04|Hiroaki Ochiai|Tig welding head, and automatic welding apparatus with the tig welding head|
    KR20140000911U|2012-07-30|2014-02-10|대우조선해양 주식회사|Spring installed wire manipulator for tig welding|
    CN102825368A|2012-08-05|2012-12-19|中国第一重型机械股份公司|Flange sealing groove inner surface annular all-position TIG automatic surface welding equipment and welding method thereof|
    US2776363A|1950-10-24|1957-01-01|Lincoln Electric Co|Arc welding process and apparatus for use therein|
    FR2138564B1|1971-05-21|1973-05-25|Paulange Serge|
    JPS5561381A|1978-10-31|1980-05-09|Kobe Steel Ltd|Welding device|
    US7329827B2|2004-03-11|2008-02-12|L'air Liquide, Societe Anonyme A Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude|Wire-guide nozzle assembly for a robotic TIG welding torch|
    US7180028B2|2005-07-20|2007-02-20|Tri Tool, Inc.|Configurable dual process welding head and method|
    PL2322306T3|2009-11-02|2014-05-30|Eipa Eisen Palmen Gmbh|Method and device for manufacturing a support on a component|
    US10315267B2|2014-04-28|2019-06-11|Lincoln Global, Inc.|TIG welding system|WO2020038572A1|2018-08-22|2020-02-27|Framatome Gmbh|Welding torch, welding system, method of producing a welding torch as well as computer-readable medium|
    EP3960354A1|2020-08-31|2022-03-02|FRONIUS INTERNATIONAL GmbH|Device for feeding a consumable welding wire to the tool centre point of a welding torch and welding torch with a non-consumable electrode with such a device|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50803/2014A|AT516445B1|2014-11-04|2014-11-04|TIG welding torch|ATA50803/2014A| AT516445B1|2014-11-04|2014-11-04|TIG welding torch|
    DE102015211854.1A| DE102015211854A1|2014-11-04|2015-06-25|TIG welding torch|
    EP15192498.2A| EP3017901B1|2014-11-04|2015-11-02|Tig welding torch with arc-shaped guide|
    CN201510737361.9A| CN105562901B|2014-11-04|2015-11-03|Tig torch|
    US14/930,908| US20160121423A1|2014-11-04|2015-11-03|Tig welding torch|
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