WO2012045107A1 - Coude tubulaire flexible destiné à un chalumeau et doté d'un câble électrique et d'un bras de réglage - Google Patents

Coude tubulaire flexible destiné à un chalumeau et doté d'un câble électrique et d'un bras de réglage Download PDF

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Publication number
WO2012045107A1
WO2012045107A1 PCT/AT2011/000418 AT2011000418W WO2012045107A1 WO 2012045107 A1 WO2012045107 A1 WO 2012045107A1 AT 2011000418 W AT2011000418 W AT 2011000418W WO 2012045107 A1 WO2012045107 A1 WO 2012045107A1
Authority
WO
WIPO (PCT)
Prior art keywords
copper
pipe bend
welding
actuating arm
copper wires
Prior art date
Application number
PCT/AT2011/000418
Other languages
German (de)
English (en)
Inventor
Klaus Oberndorfer
David Preundler
Gerald Haas
Franz Soringauer
Original Assignee
Fronius International Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fronius International Gmbh filed Critical Fronius International Gmbh
Priority to DE112011102885T priority Critical patent/DE112011102885A5/de
Publication of WO2012045107A1 publication Critical patent/WO2012045107A1/fr

Links

Classifications

    • 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
    • B23K9/00—Arc welding or cutting
    • B23K9/24—Features related to electrodes
    • B23K9/28—Supporting devices for electrodes
    • B23K9/29—Supporting devices adapted for making use of shielding means
    • B23K9/291—Supporting devices adapted for making use of shielding means the shielding means being a gas
    • B23K9/295—Supporting devices adapted for making use of shielding means the shielding means being a gas using consumable electrode-wire
    • 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
    • B23K9/00—Arc welding or cutting
    • B23K9/16—Arc welding or cutting making use of shielding gas
    • B23K9/173—Arc welding or cutting making use of shielding gas and of a consumable electrode
    • 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
    • B23K9/00—Arc welding or cutting
    • B23K9/32—Accessories
    • B23K9/323—Combined coupling means, e.g. gas, electricity, water or the like

Definitions

  • the invention relates to a flexible pipe bend for a welding torch, wherein at one end a nozzle for receiving a contact tube and a gas nozzle and at the far opposite end a central terminal for fixing the pipe bend is arranged on a burner holder, wherein the two ends via a flexible Connecting element are connected to each other, which is designed for stable positioning of the arc components, in particular a welding wire or an electrode, and for receiving a wire guide core and / or the welding wire or the electrode, and which is prepared for guiding a protective gas in its interior.
  • the connecting element comprises a flexible actuating arm and a power cable ge, as described in the preamble of claim 1.
  • a flexible pipe bend for a welding torch in which at one end a nozzle for receiving a contact tube and a gas nozzle and at the other end opposite a central terminal for fixing the pipe bend is arranged on a burner holder, wherein the both ends are connected to each other via a flexible connecting element.
  • the connecting element is designed such that a mechanical separation for the stability and the current transmission is present by an actuating arm for stable positioning of the
  • Arc components in particular a welding wire or an electrode, is provided.
  • a highly flexible power cable is laid around the actuator arm, and the actuator arm is designed to accommodate a wire guide core and / or the welding wire or an electrode.
  • a protective gas is guided within the actuator arm.
  • the power cable is formed from a braid of high-strength and flexible individual strands, which preferably consist of the material copper.
  • the actuating arm is formed from a well-known from the prior art corrugated hose, in particular a so-called gooseneck.
  • the object of the invention is to provide a flexible pipe bend and a welding torch in which the aforementioned disadvantages of the inaccurate position holder are remedied or at least improved by the actuating arm.
  • This problem is solved for a flexible pipe bend in that the power cable is designed for guiding, shaping and stabilizing by a plurality of defined wound copper wires or copper pipes, and that the actuating arm at both ends in fixed connection with the copper wires or copper pipes, the continuous and alternating are connected on a plane wrapped around the actuator arm.
  • the advantage here is that a defined bending radius is set by the use of an actuating arm in the form of a gooseneck, which is designed such that a promotion of the welding wire through the gooseneck tube is possible without problems.
  • Another advantage is that it is now ensured by fixing the wires or tubes on the actuating arm that no change in length of the pipe bend during bending arises, as was the case in the prior art, since the highly flexible power cable was not connected to the actuator arm and thus can expand at a bending operation, whereby the attached nozzle and / or central connection was slightly shifted in length.
  • the accuracy is significantly increased because the TCP (Tool Center Point) does not change due to the bends.
  • Another advantage is the use of multiple wires or tubes, resulting in the total cross section of the sum of the individual cross sections, so that the flexibility is made possible and the power transmission is guaranteed for higher performance. Another significant advantage is that through the Support function of the actuator arm for the windings of the wires or pipes they are no longer deformed during bending and thus the service life and the bending number are significantly increased. Another significant advantage is that due to the arrangement of the wound copper wires or copper pipes even a large bending angle of the connecting element causes no or minimal deformation of the wires or pipes.
  • the copper wires or the copper pipes each have a diameter between 3 and 5mm, preferably 4mm, as this also the wires are designed to accommodate the bending forces and thus the actuator arm is supported in the position stabilization.
  • the number of copper wires or copper pipes is adapted to a required total cross section between 30mm 2 and 50mm 2 depending on the required burner performance, as this is the formability and stability independent of the burner performance. It is also advantageous if the copper wires or copper tubes are arranged at an angle between 65 ° and 75 ° to the longitudinal axis of the actuating arm or the welding torch, so that the deformability and stability is specified or defined.
  • a further advantageous embodiment is achieved in that the actuating arm of a flexible, but semi-rigid arm of coiled metal hose, in particular of a gooseneck tube is formed, as a high stability for the wound copper wires or copper tubes is achieved, since this serves as a support body ,
  • a gooseneck tube a defined minimum radius is specified, and thus the copper wires or copper pipes are not overstressed, so that the number of possible bending cycles for such a copper wire or such a copper tube is substantially increased.
  • an embodiment in which the copper wires or copper tubes are insulated from one another is also advantageous. This is achieved in an advantageous manner that no arcing between the turns in a bending process can occur.
  • Fig. 1 is a schematic representation of a welding machine or a welding device
  • Fig. 2 is a schematic representation of a pipe bend in longitudinal section
  • Fig. 3 is a schematic representation of the pipe bend shown in Figure 2 in cross section.
  • FIG. 5 is a side view of the pipe bend with rubber hose in a simplified, schematic representation
  • Fig. 6 is a perspective view of the pipe bend without rubber hose
  • Fig. 7 is a schematic representation of the pipe bend which is bent in the region of the nozzle
  • Fig. 8 is a schematic representation of the pipe bend which is bent in the region of the central connection
  • Fig. 9 is a schematic representation of the pipe bend bent semicircular
  • Fig. 10 is a schematic representation of the pipe bend, which is bent in an S-shape and
  • Fig. 11 is a schematic representation of the pipe bend, which is bent even more S-shaped.
  • MIG MAG welding or TIG / TIG welding or electrode welding, double wire / tandem welding, plasma or soldering, etc. are shown.
  • the welding apparatus 1 comprises a power source 2 with a power part 3 arranged therein, a control device 4 and other components and lines, not shown, such as a switching element, control valves, etc.
  • the control device 4 is connected, for example, to a control valve which is in a supply line for a Gas 5, in particular a protective gas, such as CO 2, helium or argon and the like.
  • a gas storage 6 and a welding torch 7 and a burner is arranged.
  • a wire feed device 8 which is customary for MIG MAG welding, can be actuated via the control device 4, wherein a filler material or a welding wire 9 is fed from a supply drum 10 or a wire roll into the region of the welding torch 7 via a supply line becomes.
  • the wire feeder 8 in the welding device 1, in particular in the housing 1 1 of the power source 2, is integrated and not, as shown in Fig. 1, as an additional device a carriage 12 is positioned.
  • This is referred to as a "compact welding apparatus" 1.
  • the wire feeder 8 can be placed directly on the welding apparatus 2, ie that the housing 11 of the power source 2 is formed on the upper side for receiving the wire feeder 8 is, so that the carriage 12 can be omitted.
  • the wire feed unit 8 may supply the welding wire 9 or the additional material outside the welding torch 7 to the processing station, wherein for this purpose in the Welding torch 7 is preferably arranged a non-consumable electrode, as is common, for example, in TIG / TIG welding.
  • the current for constructing an arc 13, in particular a working arc between see the electrode or the welding wire 9 and a preferably formed from one or more parts workpiece 14 is the welding torch 7, in particular the electrode or the welding wire 9, via a welding line (not shown) supplied from the power part 3 of the power source 2.
  • the workpiece 14 to be welded is connected via a further welding line for a further potential, in particular via a ground cable, to the current source 2 (not shown).
  • a circuit is closed via the arc 13 or the plasma jet formed for a welding process.
  • the two welding lines (not shown) are guided to the burner, so that in the burner, a corresponding circuit can be constructed, as may be the case with plasma torch.
  • the welding torch 7 can be connected via a cooling device 15 with the interposition of other components, such as a flow monitor, with a liquid container, in particular a water tank 16 with a level indicator 17, whereby the cooling unit 15, in particular one for the in Wasserbe - Container 16 arranged liquid used liquid pump is started at the start of the welding torch 7, whereby cooling of the welding torch 7 can be effected.
  • the cooling device 15 is positioned on the carriage 12, on which then the power source 2 is placed.
  • the individual components of the welding installation that is to say the current source 2, the wire feeder 8 and the cooling unit 15, can be designed in such a way that they have corresponding projections or recesses, so that they can be safely stacked on top of each other.
  • the welding parameters, operating modes or welding programs set via the input and / or output device 18 are sent to the control device 4 forwarded, which then the individual components of the welding system or the welding device 1 driven or corresponding setpoints for the control or control can be specified.
  • the welding torch 7 is preferably connected via a data bus, in particular a serial data bus, to the welding device 1, in particular the current source 2 or the wire feed device 8.
  • the welding torch 7 usually has a start switch
  • the welding torch 7 is equipped with a heat shield 20.
  • Hose package 21 is connected to the welding device 1 or the welding system, wherein the hose package 21 is attached via a bend protection 22 on the welding torch 7.
  • individual lines between the welding device 1 and the welding torch 7 are arranged, such as the supply line or lines for the
  • the ground cable is preferably connected separately to the power source 2.
  • the hose package 21 is connected via a coupling device (not shown) to the power source 2 or the wire feeder 8, whereas the individual lines in
  • Hose package 21 are attached with a kink protection on or in the welding torch 7. Thus, a corresponding strain relief of the hose assembly 21 is ensured that can
  • Hose package 21 via a strain relief device (not shown) to be connected to the housing 1 1 of the power source 2 or the wire feeder 8. Basically, it should be mentioned that for the different welding processes or
  • Welding devices 1 such as TIG devices or MIG / MAG devices or plasma devices, not all previously named components must be used or used.
  • the welding torch 7 as air-cooled Welding torch 7 can be performed so that, for example, the cooling unit 15 can be omitted.
  • the welding device 1 can also be formed merely by the power source 2, the wire feed device 8 and the cooling device 15, wherein these components can also be arranged in a common housing 1 1.
  • even more parts or components can be arranged or used, such as a grinding guard 23 on the wire feeder 8 or an option carrier 24 on a holding device 25 for the gas storage 6, etc.
  • FIGS. 2 to 1 1 show a flexible pipe bend 29 for a welding torch 7.
  • Flexible pipe bends are known per se.
  • a flexible pipe bend in the Austrian application A 2009/01245 is included.
  • the basic structure of such a flexible pipe bend is therefore not described here in detail, but it will only reference to the significant differences according to the invention between the pipe bend 29 according to the invention and known in the art pipe bends reference.
  • the pipe bend 29 is formed such that at one end a nozzle 30 for receiving a contact tube 31 and at the other opposite end a central terminal 32 for fixing the pipe bend 29 to a burner holder (not shown) are arranged, wherein the two ends are connected to each other via a flexible connecting element 33. It is also possible that other components, such as a gas nozzle 34, a union nut 35 or the like, are fixed or arranged on the nozzle 30 or the central terminal 32.
  • the connecting element 33 is designed such that there is a mechanical separation for the stability and the current transmission, by providing an actuating arm 38 for the stable positioning of the arc components, in particular the welding wire 9 or an electrode (not shown).
  • the actuating arm 38 is also designed for receiving a wire guide core and / or the welding wire 9 or for receiving a non-consumable electrode for a TIG / TIG torch, preferably further required for a welding process elements, such as the inert gas, within of the actuating arm 38 are guided.
  • actuating arms 38 are flexible and rigid at the same time and consist of a combination of inner round wire with an externally depressed three-cornered helix
  • Actuator arm 38 has a highly flexible cable that does not absorb any mechanical forces to stabilize the position and is therefore designed solely for carrying current.With this design, the cable consists of nothing but fine strands, so that this cable can bend easily, but without tools in this bent position lingers, but moves back to the starting position.
  • the power cable 39 is designed to conduct electricity and also to stabilize and position and shape the arc components, so the nozzle, by the power cable 39 is formed of several defined wound copper wires or copper tubes 40, wherein the individual copper wires or
  • Copper tubes 40 are continuously and alternately wound on a plane around the actuator arm 38, that is, that now the actuator arm 38 and the power cable 39 independently of each other for receiving the mechanical forces, in particular the bending forces, restoring forces, etc., are formed so that a much better dimensional stability of the burner / pipe bend 29 is achieved because now two components for receiving the forces are available. It can therefore be said that several copper wires or copper tubes 40 form the power cable 39. It is also conceivable, however, that the power cable 39, ie the wires or pipes 40 provided for its construction, can not consist of copper but also of other electrically conductive materials, such as, for example, silver or silver alloys.
  • the copper wires or copper tubes 40 of the power cable 39 are fixedly connected to the ends of the actuator arm 38, thereby preventing them from being displaced beyond the actuator arm 38 during bending or from shortening.
  • the stretching and shrinking processes that occur during bending are compensated by the individual windings, ensuring that the pipe bend length always remains the same.
  • the fastening of the copper wires or copper tubes 40 on the actuating arm 38 can take place, for example, via a ferrule and / or by soldering, although any other suitable type of fastening, such as, for example,
  • the copper wires or copper pipes 40 are formed and wound up accordingly.
  • the copper wires or copper tubes 40 each have a diameter of between 3 and 5 mm, preferably 4 mm.
  • the individual copper wires or copper tubes 40 form a total, depending on the required burner output.
  • cross section between 30mm 2 and 50mm 2 ie, that the required cross section for a corresponding current flow to several copper wires or copper pipes 40 is divided, whereby the thickness of the pipe bend 29, so the outer diameter of the connecting element 33, can be reduced while the bending properties and the positional stability is improved. So that a simple bending of the pipe bend 29 is possible, the
  • the copper wires or copper tubes 40 are preferably at an angle 43 between 60 ° and 75 ° to the longitudinal axis 41 of the actuating arm 38 and
  • Welding burner 7 arranged.
  • the arrangement of a plurality of copper wires or copper pipes 40 takes place, if possible, in one plane.
  • the beginning and the end of the copper wires or copper tubes 40 are evenly divided by a diameter of the actuator arm 38, in particular the gooseneck tube, and connected to these, as best seen in Fig. 3 in the region of the central terminal 32.
  • the wires or the copper pipes 40 In the winding of the copper wires or the copper pipes 40 is wound alternately along the actuator arm 38, that is, for example, six six copper wires or copper tubes 40 first all six in the first winding are arranged consecutively, and only then the second winding of the individual copper wires or copper tubes 40 and the other windings are formed.
  • the wires always alternate.
  • the pipe bend 29 is wound with only one layer, wherein the wires preferably without gaps line up.
  • the individual windings are also formed against each other insulating.
  • the life and the bending number is significantly increased.
  • individual copper pipes 40 are used, through which the cooling medium is guided.
  • all copper tubes 40 are formed as supply lines and the return line within the actuator arm 38 runs or all lines are arranged for cooling within the actuator arm 38, but advantageously a gooseneck tube is used with a larger diameter.
  • copper tubes 40 are used therein.
  • a diameter of copper pipes 40 from 3 to 4mm 4 to 7 copper tubes 40 are used, so that a total cross section between 25 and 35mm 2 results and thus a power transmission to 520A is possible.
  • a typical dimensioning for an air-cooled burner for example, be such that a 3 to 4mm thick copper wire 40 is used, are arranged by the four to seven individual copper wires 40 on the circumference, so that a total cross section of 40 to 50mm 2 is achieved, and thus a Power transmission up to 320A is possible.
  • Both welding torches 7 or elbows 29 have the same outer diameter of the connecting element 33.
  • the current-carrying parts, in particular the actuating arm 38, with the power cable 39 wound thereon, are covered with a protective hose 49, in particular a rubber hose, as shown in FIGS. 7 to 11 is.
  • a protective hose 49 in particular a rubber hose, as shown in FIGS. 7 to 11 is.
  • the previously described pipe bend 29 is also used in a welding torch 7, ie, that the flexible pipe bend 29 is fixed or pluggable mounted on the burner handle, so that the user can bend the pipe bend 29 before or during the welding process.

Abstract

L'invention concerne un coude tubulaire flexible (29) destiné à un chalumeau (7), présentant à une extrémité un porte-buse (30) servant à loger un tube de contact (31) et une buse à gaz (34), et à l'autre extrémité opposée un raccord central (32) servant à fixer le coude tubulaire (29) sur un porte-chalumeau. Les deux extrémités sont reliées l'une à l'autre par un élément de liaison flexible (33) qui est conçu pour assurer un positionnement stable des composants d'arc électrique, en particulier d'un fil d'apport ou d'une électrode, et pour loger une âme de guidage de fil et/ou le fil d'apport ou l'électrode. Un gaz protecteur est guidé dans l'élément de liaison. L'élément de liaison (33) est constitué d'un bras de réglage flexible et d'un câble électrique. Le câble électrique est constitué, pour le guidage du courant, le formage et la stabilisation, de plusieurs fils de cuivre ou tubes de cuivre (40) enroulés de manière définie. Le bras de réglage est relié aux deux extrémités par liaison fixe aux fils de cuivre ou tubes de cuivre (40) qui sont enroulés intégralement et en alternance dans un plan autour du bras de réglage.
PCT/AT2011/000418 2010-10-06 2011-10-06 Coude tubulaire flexible destiné à un chalumeau et doté d'un câble électrique et d'un bras de réglage WO2012045107A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112011102885T DE112011102885A5 (de) 2010-10-06 2011-10-06 Flexibler Rohrbogen für einen Schweißbrenner mit einem Stromkabel und einem Stellarm

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA1669/2010 2010-10-06
AT16692010A AT510481B1 (de) 2010-10-06 2010-10-06 Flexibler rohrbogen für einen schweissbrenner

Publications (1)

Publication Number Publication Date
WO2012045107A1 true WO2012045107A1 (fr) 2012-04-12

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ID=45044214

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AT2011/000418 WO2012045107A1 (fr) 2010-10-06 2011-10-06 Coude tubulaire flexible destiné à un chalumeau et doté d'un câble électrique et d'un bras de réglage

Country Status (3)

Country Link
AT (1) AT510481B1 (fr)
DE (1) DE112011102885A5 (fr)
WO (1) WO2012045107A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104942498A (zh) * 2015-06-30 2015-09-30 张建生 一种具有内置疏通装置的万向焊枪
WO2019175345A1 (fr) * 2018-03-14 2019-09-19 Quaeckber Joerg Torche de soudage

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2666832A (en) * 1947-05-22 1954-01-19 Lincoln Electric Co Combined welding head and flux hopper for continuous welding
US3755648A (en) * 1972-09-05 1973-08-28 J Rothman Flexible welding nozzle apparatus
JPS6072683A (ja) * 1983-09-21 1985-04-24 アレクサンダ−・ビンツエル 連続的に溶融する電極を有する電気的なシ−ルドガス溶接ト−チのためのフレキシブルなト−チネツク
JPH09295153A (ja) * 1996-04-26 1997-11-18 Obara Kk 溶接ト―チ用コンダクタ―チュ―ブ

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3999033A (en) * 1975-02-25 1976-12-21 Union Carbide Corporation Arc welding torch having a flexible wire guide assembly
JPS5772780A (en) * 1980-10-24 1982-05-07 Matsushita Electric Ind Co Ltd Torch for welding

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2666832A (en) * 1947-05-22 1954-01-19 Lincoln Electric Co Combined welding head and flux hopper for continuous welding
US3755648A (en) * 1972-09-05 1973-08-28 J Rothman Flexible welding nozzle apparatus
JPS6072683A (ja) * 1983-09-21 1985-04-24 アレクサンダ−・ビンツエル 連続的に溶融する電極を有する電気的なシ−ルドガス溶接ト−チのためのフレキシブルなト−チネツク
JPH09295153A (ja) * 1996-04-26 1997-11-18 Obara Kk 溶接ト―チ用コンダクタ―チュ―ブ

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Week 198523, Derwent World Patents Index; AN 1985-137746, XP002669474 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104942498A (zh) * 2015-06-30 2015-09-30 张建生 一种具有内置疏通装置的万向焊枪
WO2019175345A1 (fr) * 2018-03-14 2019-09-19 Quaeckber Joerg Torche de soudage
DE102018105888A1 (de) 2018-03-14 2019-09-19 Jörg Quäckber Schweißbrenner

Also Published As

Publication number Publication date
AT510481B1 (de) 2012-07-15
AT510481A1 (de) 2012-04-15
DE112011102885A5 (de) 2013-07-18

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