• 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 welding device (29) has a central unit (35) and a welding torch unit (30) which can be connected to the central unit (35). The central unit (35) comprises at least one welding power source (36, 37) for providing electrical current required for the operation of the welding torch unit (30) and a control unit (5). The welding torch unit (30) comprises at least one first welding torch (31) with a first welding wire (43) and a second welding torch (32) with a second welding wire (44). The first welding torch (31) is designed to carry out a first welding process and the second welding torch (32) to carry out a second welding process, wherein both welding torches (31, 32) are operable independently of one another. The control unit (5) is designed to carry out a starting operation such that a first arc ignition first takes place on one of the two welding torches (31) and after a waiting time (59) has elapsed since the first arc ignition, a second arc ignition on the previously non-ignited other two welding torch (32) takes place. Furthermore, the control unit (5) is designed to transfer the welding wire (44) of the other of the two welding torches (32) with its welding wire end (50) into a waiting position before or during the first arc ignition taking place on one of the two welding torches (31) , wherein the welding wire end of the other of the two welding torches (32) is in the waiting position until the end of the waiting time.
    公开号:AT512836A1
    申请号:T3852012
    申请日:2012-03-29
    公开日:2013-11-15
    发明作者:Andreas Waldhoer；Dominik Soellinger；Rene Allerstorfer
    申请人:Fronius Int Gmbh；
    IPC主号:
    专利说明:

    S D 5i42 fax +49 911 208569 Rtu, Schneck 6 Huebner 9 0 004 031 • 16 «···· I. ···· t
    Welding device with two welding torches and welding process with two swelling processes
    The invention relates to a welding apparatus comprising a central unit 5 and a welding torch connectable to the central unit, the central unit comprising at least one welding current source for providing electrical current required for the operation of the torch assembly and a control unit, the welding torch assembly comprising at least one first torch first welding wire 10 and a second welding torch with a second welding wire, and the first welding torch for carrying out a first welding process and the second welding torch is ausgegt for excising a second welding process, both torches are independently operable. Furthermore, the invention 15 relates to a welding method with at least a first welding process and a second welding process, which are combined with each other.
    Such a welding device and such a welding method are described for example in WO 2005/056 228 Al. One of the two welding processes may be formed as a pulse welding process, as a spray arc welding process, or as a cold metal transfer (Cold Mctal Transfer; CMI) welding process with a forward and backward movement of a welding wire, whereas the second welding process may be 25 The two welding processes are synchronized with each other, but the latter only applies to the actual welding operation, whereas the starting process, and in particular the ignition of the arcs of the two welding processes, happens at random - 29/03/2012 15:42
    No .: R263 P.004 / 031 I rru, «n * c u · n« r
    · «·« ··· ·· «» · · 9 · · · * i. i: * · »
    At times an increased order of material that is undefined and undesirable.
    The object of the invention relating to the welding device is therefore to specify a welding device of the type described above with an improved starting process.
    To solve this problem, a Schwcißvonichlung according to the features of claim 1 is given. In the welding apparatus according to the invention, the control unit is designed to perform a start-up operation by first firing an arc on one of the two welding torches and, after a waiting time has elapsed since the first arc ignition, applying a second arc to the yet-ignited other of the two torches. Furthermore, the control unit is designed, before or during the first arc sparking on one of the two welding torches, to transfer the welding wire of the other of the two welding torches with its welding wire end into a waiting position.
    In particular, your welding machine can be equipped with exactly two welding processes with two welding torches. However, cs is also possible that the welding device contains more than two welding processes with correspondingly more than two welding torches. In the welding device according to the invention, a defined ignition is intentionally provided on the at least two welding torches involved. It is therefore no longer left to Zufell, which of the welding torch is ignited first and with which time interval after this first ignition, the ignition of the / other welding torch takes place. In the advantageous starting process of the welding device ensures that 29/03/2012 15:42
    No .: R263 P.005 / 031 FAX + Rau, c nee & Huener «* ft *» »I *« III Mft «« · · ·· * ft * · * 1 i * * · »» »* * I | I · ft ft * l | l | | 3-initially a Lichtbogcnzündung takes place on a particular specifiable welding torch, whereas the welding wire end of the other welding torch or until the end of the waiting time is in the particular defined waiting position. The one or more initially ignited welding torches are advantageously also brought into a defined state very quickly at the beginning of the starting process in order to be ignited quickly and in particular then without the interposition of further preparatory steps after the waiting time has elapsed.
    Due to this favorable starting process of the welding device can be very accurately determine how much material is applied at the beginning of the welding processes. It is also possible to determine how much incineration and how much heat is initially generated. This also improves the overall quality of the welding result.
    Advantageous embodiments of the welding device emerge from the features of the dependent of claim 1 claims. An embodiment in which at least one of the two welding processes is designed as a pulse-swaging process, a spray-arc welding process, a short-arc welding process or a cold-melt transfer welding process, or at least one as a pulse-welding process, spray-arc welding process, is advantageous. Short arc welding process or cold metal transfer welding process trained sub-process contains. It is thus possible in particular for the welding process after ignition to be carried out during an initial process phase, for example as a cold metal transfer welding process, in order to be switched over to a different welding process type, for example to a pulse welding process, after a certain process duration - 29/03/2012 15:43 No .: R263 P. 006/031 3012 00 15:43 FAX +49 911 Rau, c nee 6 Hue ner 91 · ** «· ll 1. -4 - den. The welding device is therefore very flexible to use, it offers a variety of different modes of operation, each of the favorable starting process with the defined ignition of the welding processes involved. 5
    According to a further advantageous embodiment, the control unit is designed to cause a forward movement of at least one of the two welding wires in the direction of a workpiece to be welded before the arc ignition and to detect a short circuit of this welding pressure with the workpiece and then, in particular, a backward movement of this welding wire until Reaching the warble position. As a result, in particular at the beginning of the welding process, the position of the welding wire ends in relation to the workpiece to be welded can be determined precisely, whereby a defined arc ignition 15 can take place under the respective desired conditions. Even with the initially not ignited welding torch, the forward and backward movement of the welding wire with the intermediate short circuit with the workpiece to be welded low, as ntan in this way can bring the welding wire end of the associated second welding torch 20 favorably in the preferably defined waiting position of the from the ignition of the second welding process and thus the second welding process can be started quickly and defined in itself. Favorable is a further embodiment »in which the control unit is set to 25 cause before the arc ignition a forward movement of at least one of the two welding wires to touch a workpiece to be welded and then a backward movement of this welding wire until a Schweißdrahtende this«; Welding wire reaches a fixed predetermined or adjustable distance to the workpiece. The- 29/03/2012 15:43
    No .: R263 P.007 / 031 29 03 2012 DO 15idd FAX +49 911 0 Rau, Schneck & Hue ner ·· «4« Mt MM With ή -5- scr distance, the waiting position can then advantageously be in which the associated welding torch is transferred to the arc ignition. This distance between the welding wire end and the workpiece to be welded is thus preferably either fixed or can be set in this embodiment of the scraper device. Both are favorable and leads to a defined starting process and good Schwcißresultaten.
    According to a further advantageous embodiment, the waiting time from the first to the second arc ignition is fixed or adjustable. This also increases the flexibility and possible applications of the welding device.
    According to a favorable alternative embodiment, the control unit 15 may also be designed to produce a coupling between the two welding processes in the form that the waiting time from the first to the second arc ignition by a .Process progress of the welding process started after the first arc ignition or at least an initial process of the welding process started after the first arc ignition is determined, wherein the measure of the waiting time Prozessfortscliritt is fixed or adjustable. The latter leads again to a high degree of flexibility and versatility in the welding device. The provided in this embodiment, initial coupling between the Schwcißprozcs-sen 25 makes it possible to start the second not yet ignited welding process until the first already running welding process has reached a certain status. As a result, an additional degree of process reliability is achieved for the start of the starter process. 29/03/2012 15:44
    No .: R263 P.008 / 031 2 »03 2012 DO 15:44 FAX +49 911 208569 Rau, Schneck t Huener ♦ *« * «19 · ·« «· ············································ * 4 · · · 4 · »• 4 t * · ··· *» * * «* ·» * i ΛΜ «* · '. ** · 9 9 -6-
    According to a further advantageous embodiment, a control signal indicates the achievement of the relevant process progress of the welding process started after the first arc ignition or its initial process. This control signal can then be used directly to start, in particular ignite, the second welding process or second welding torch in the waiting position. This results in a particularly simple and efficient initial coupling between the two welding processes. 10 According to a further advantageous embodiment, the waiting time from the first to the second arc ignition is at most three seconds. This maximum time for the waiting time has turned out to be very beneficial. The named maximum value is in particular Jang enough to approach the initially fired first welding process in a defined manner. But it is also particularly short enough to perform too long welding with only one of actually two or even more envisaged welding processes. Favorable is another embodiment in which an adjustability is seen pre-20, at which of the two welding torches the first arc ignition should take place. This also increases the versatility of the Schwciß device. In particular, the welding device can then also be operated with opposite welding directions, without the need for a conversion. 25
    The welding process related further object of the invention is to provide a welding method of the type described above with an improved starting process. 29/03/2012 15:44
    No .: R263 P.009 / 031 2 »03 2012 00 15:45 fax +49 911 208549 Rau, Schneck» Huebner
    2 »03 2012 00 15:45 fax +49 911 208549 Rau, Schneck» Huebner • · · »I» · · + · f I «♦ · · · -7-
    To achieve this object, a Schweißverfahran according to the features of claim 10 is given. In the welding process, a starting process of both welding processes is carried out such that first a first arc is ignited in one of the two welding processes, and a waiting time elapses after the ignition of the first arc, before a second arc occurs in the context of the other of the two visual white processes is ignited. In addition, before or during the ignition of the first arc, a welding wire involved in the other of the two welding processes is transferred with its Schweißdrahlendc in a 10 waiting position.
    The welding method according to the invention and its embodiments have essentially the same special properties and advantages that have already been described in connection with the welding device 15 according to the invention and its embodiments.
    Advantageous embodiments of the welding method according to the invention will become apparent from the dependent of claim 10 claims. Further features, advantages and details of the invention will become apparent from the following description of exemplary embodiments with reference to the drawing. It shows;
    1 shows an exemplary embodiment of a welding device in a schematic representation,
    Fig. 2 shows an embodiment of a welding device with two welding torches in a schematic representation, 29/03/2012 15:44
    No .: R263 P.010 / 031 29 03 201 DO 15:45 FAX + $ Rau, e nac (huner
    f -8 "
    3 is a flow chart of the starting operation of the two welding torches of the welding device according to FIG. 2, FIG.
    4 shows a movement diagram of a welding wire of one of the two welding torches of the welding device according to FIG. 2 during the starting process, and FIG
    5 shows a movement diagram of a welding wire of the other of the two welding torches of the welding device according to FIG. 2 10 during the starting process.
    Corresponding parts are provided in FIGS. 1 to 5 with the same Be-zugszcichen. Details of the exemplary embodiments explained in more detail below can also constitute an invention or form part of an inventive subject matter. In Fig. 1, an embodiment of a welding apparatus 1 is shown. Welding apparatus 1 is a welding apparatus or system that is designed for various welding processes or processes, such as 20 MIG / MAG welding, TIG / TIG welding, Elcktrode welding, or double wire tandem welding. Furthermore, a design for plasma or soldering methods can also be provided.
    The welding apparatus 1 comprises a central unit 2, sometimes referred to as the actual welding apparatus. The central unit 2 comprises a power source 3 with a power unit 4, a control unit 5 and an input / output unit 6. In addition, in the central unit 2 further components may be provided, such as a control unit 5 associated Umschaltgiied 7, one with the switching element 29/03/2012 15:45
    No .: R263 P.011 / 031 2 »03 2012 DO 15t45 FAX +4 RAU, 'c nec 4 Huö'nev 2» 03 2012 DO 15t45 FAX +4 RAU,' c nec 4 Huö'nev
    These components of the central unit 2 are arranged in the embodiment shown in Fig. 1 in a common housing 11, Furthermore, the central unit 2 comprises a gas storage 12 iUr S gas 13, in particular a protective gas, such as CO2, helium or the like. The housing 11 and the gas accumulator 12 are placed on a rolling lower part 14 and form a first Tcilcinheit the central unit 2. 10 A second subunit of the central unit 2 is formed by a likewise rollable Drahtvorscbubeinheil 15, which also controlled via the control unit 5 of the first subunit becomes. The wire feed unit 15 includes a storage drum 16 on which a welding wire 17 is wound up. In principle, the wire feed unit 15 can also be a component of the first subunit and be located within the housing 11. In the embodiment shown in Fig. 1, the wire feed unit is formed as a separate accessory. But this is not mandatory. 20
    In addition, the welding device 1 comprises a welding torch unit 18, which is connected via a hose package 19 and a Zugcntlastung 20 to the housing 11 and via a supply line 21 to the wire feed unit 15. 25
    The welding wire 17 stored in the storage drum 16 is fed to the welding torch unit 18 by means of the supply line 21, as is customary in particular in MIG / MAG welding. In principle, it is also possible that the wire feed unit 15 the welding wire 17 or 29/03/2012 15:45
    No.: R263 P.012 / 031 D I FAX + Rough, «nac & Hue ner -10- another Zusalzwerkstoff outside the welding torch unit 18 to the process station, d. H. to the point where the actual welding process takes place is introduced. In this alternative embodiment not shown in the figures, a non-consumable electrode is preferably arranged in the welding torch unit 18, as is customary, for example, in TIG / TIG welding.
    The hose package 19, which is connected to the welding torch unit 18 by means of a coupling 22, contains an electrical welding line 23, 10, a gas supply line 24 and a cooling circuit 25
    Gasvirsorgungsleitung 24, the gas 13 from the gas storage 12 to. Welding burner unit 18 transported. Similarly, the electrical welding line 23 is used to transport the current generated in the power source 3 to the Schweißbrenneretnheit 18. 15
    The supplied via the Schwcißleitung 23 of the Schweißbrennereinhcit 18 electrical current is used for Aufbaucn an arc 26, in particular a working arc, between an electrode of the welding torch unit 18 and a workpiece to be welded 27, which is formed from several-20 ren parts to be joined 27 may be connected via a further electrical welding line 28 to the power source 3 of the welding device 1. The two welding lines 23 and 28 together with the arc 26 and the power source 3 form a closed circuit. 25
    The welding torch unit 18 may have cooling. For this purpose, the welding torch unit 18 via the cooling circuit 25 Kühlflüssig-speed, in particular water, supplied from the water tank 9. The cooling circuit 25 is monitored by the flow monitor 19 A 29/03/2012 15:46
    No .: R263 P. 013/031 29 03 2012 TH 15:66 FAX +49 911 208569 RAU, c nec i HU * n # r * · «« * * »* *» * * «« ** ** « »· · · * * · · · * T · · · t < ··« »* Φ 1 < When the welding-torch unit 18 is put into operation, the liquid pump (not shown) is started, whereby the cooling circuit 25 between the water tank 9 and the welding-torch unit 18 is started. In principle, it is also possible that the welding torch unit 5 is not equipped with liquid cooling, but with air cooling.
    By means of the input / output unit 6 on the central unit 2, a multiplicity of welding parameters, operating modes and / or welding programs can be set or called up. The welding parameters, operating modes and / or welding programs set by means of the input / output unit 6 are forwarded to the control unit 5, which then controls the individual components of the swirl apparatus 1 in accordance with these specifications and / or corresponding setpoint values for a control 15 or control these individual components vorgibl, so that sets the desired welding process.
    In the embodiment of the welding apparatus 1 shown in Fig. 1, a variety of different Einzelkomponcntcn are provided. In addition, there are alternative embodiments, not shown, in which the welding device does not comprise all of these individual clamping elements. This is the case, for example, with special TIG devices, MIG / MAG devices or plasma devices. The welding torch unit 18 has at least two welding torches which can not be operated independently of one another and are not shown exactly in the schematic diagram according to FIG. 1, by means of which two visual white processes can be carried out. In principle, the welding torch unit 18 can be replaced 29/03/2012 15:46
    No .: R263 P.014 / 031 47 FAX +49 911 209569 Rau, Schneck 4 Huabnar 015 031
    ··· «* · * #« • · O • 9 9 -12- practical examples also include more than two separate welding torches.
    Tn Fig. 2 is a. Another embodiment of a Sdiweißvorrichtung shown 29, which includes a welding torch unit 30 with two separate, independently operated welding torches 31 and 32. Each of the two welding torches 31 and 32 is closed with its own hose package 33 or 34 to a central unit 35, which in turn can also be referred to as the actual welding device. By means of these two Schlauchpakctc 33 and 34, the welding torches 31 and 32 are independently supplied with all necessary for the implementation of a welding process components, such as the gas 13, the electric power and the Kühlflüssigkcit. In that regard, reference is made to the corresponding embodiments in connection with the Ausfuhningsbcispiel shown in Fig. 1 of the welding device 1.
    The central unit 35 of the welding device 29 comprises in addition to the unillustrated control unit 5 two separate power sources 36 and 37 and a Drahtfördcrcinhcit 38 with two separate storage drums 39 and 40 and two drive units 41 and 42, by means of which welding wires 43 and 44 of the two storage drums 39 and 40 promoted and supplied via the hose assemblies 33 and 34 to the welding torch 31 and 32. Optionally, an additional Anlriebsein-unit 45 may be provided in the welding torch unit 30 for the two welding torches 31 and 32, which in the embodiment shown in Fig. 2 exemplary exemplary with dashed lines and is entered in each case. Welding burner unit 30, in the embodiment shown, is 15:46
    No .: R263 P.015 / 031 D t FAX + Rau, e nee * hu * n »r • e ♦ *« · 4 * ei * • * 4 4 • 1 «9 * ·« • 9 ···· For example, a common gas nozzle 46 for both welding torches 31 and 32 is provided.
    With regard to the mode of operation of the individual assemblies and components of the welding device 29, reference is made to the corresponding explanations in connection with the welding device 1 shown in FIG. 1. In particular, the central unit 35 of the welding device 29 also includes an input / output unit 6 by means of which, just as in the welding device 1, welding parameters, operating modes and / or welding programs can be set.
    The operation of the welding device 29 will be described below. The first welding torch 31 is designed to carry out a first welding process and the second welding torch 32 to carry out a second welding process. In the case of the exemplary embodiment shown in FIG. 2, both welding torches 31 and 32 are each preferably an MIG / MAG torch, by means of which a pulse-welding process as well as a cold-metal-trans-vision process can be carried out in each case. Other operating modes are also possible in principle.
    In the two welding torches 31, 32, an arc 47 or 48 between the welding wire end 49 or 50 of the relevant welding wire 43 or 44 on the one hand and the workpiece 27 on the other hand is ignited at the beginning of the welding process 25. 29/03/2012 15:47
    No.; R263 P.016 / 031 29 03 2012 DO 15 (47 FAX +49 911 209569 Rsu, Setin # ck & Huebner «« 4 # ·· »» «# * ··« ** «« «« 4 4 4 * • • 4 «* 4 * ·« «I ·· 4 Ψ *« · «·» ** »« »« 4 4 I «« * «« I · * «-14-
    The first welding torch 31 is arranged upstream of the second welding torch 32 in a welding direction 51. The welding direction 51 is oriented approximately parallel to a longitudinal direction of a weld 52, by means of which the individual parts of the workpiece 27 are connected. In principle, however, is also a reverse arrangement order of
    Welding torch 31,32 possible, for example, in an operation with opposite welding direction. In this opposite welding direction, the welding torch 32 would then be arranged upstream of the welding torch 31 in the welding direction. In addition, the two 10 welding torches 31 and 32 with respect to the welding direction 51 at the same height cher, but perpendicular to the welding direction 51 bcabstandet be arranged to each other.
    In the following, the coordinated starting process of the two welding torches 31 and 32 will be described with reference to the flowchart of FIG. 3 and the 15 Bewegungsdiagrammc shown in FIG. 4 and 5. FIG. 3 is a flow chart depicting the starting operation of the two welding torches 31 and 32. During a first decision step 53, it is determined which of the two welding torches 31 and 32 should have the leading function (= master) and which of the two welding torches 31 and 32 should have the following function ("slave") This assignment can be specified and also change depending on the selected operating mode. Here it is assumed by way of example that the welding torch 31 has the guiding function and the welding torch 32 has the following function. The left part of the flowchart of FIG. 3 relates to the leading welding torch 31, the right part to the following welding torch 32. 29/03/2012 15:47
    No .: R263 P.017 / 031 2 $ 03 2012 THU 15:48 FAX + 4 $ $ 11 $ Rough, e nac-hu * n «r $« · ¥ * * · «« 88 * · * ♦ * * • 88 «* * *::::::::::
    After the assignment of the guiding and following functions is determined in step 53, in both welding torches 31 and 32, the welding wire 43, 44 is moved forward until the welding wire end 49, 50 contacts the workpiece 27 (see FIGS. 4 and 5). This contact is detected by means of a short-circuit detection. Thereupon, the ignition of the arc 47 takes place immediately at the leading welding torch 31. From this point onwards, the arc 47 burns on the welding torch 31, in particular uninterruptedly during the entire duration of the welding process carried out with the welding torch 31. The forward movement, short circuit detection and arc ignition during backward movement of the welding wire 43 is summarized for the leading welding torch 31 in the ignition step 54 (see FIGS. 3 and 4)
    On the other hand, in the case of the following welding torch 32, there is still no arc ignition after the short-circuit detection. Rather, the
    Welding wire 44 in a waiting position 55 (see Fig, 5) moved back. This is symbolized in the flowchart of FIG. 3 by the short-circuiting and retreating step 56 (see FIGS. 3 and 5). In the waiting position 55, the welding wire end 50 of the welding wire 44 is at a defined and in particular adjustable distance d from the workpiece 27 (see Fig. 5).
    In the leading welding torch 31, an initial welding process 57, which is designed, for example, as a cold metal transfer welding process with a welding wire 43 moved back and forth, is carried out (see FIGS. 3 and 4). Basically, the initial welding process 57 but also configured differently, for example as a pulse welding process. 29/03/2012 15:47
    N °: R263 P.018 / 031 D FAX + atu, 1 e nee 6 Hue n # r «« t * hm · »··· * ··« * · · · · · · · · · «« » ·· f »* · · · · ** ·· * ► * · ♦ · · · · * * * * * * *« «» f - 16-
    As soon as the control unit 5 recognizes a predefined or adjusted progress or as soon as a predefined or set start time has elapsed, the initial welding process 57 is completed. Then, the control unit 5 generates a control signal 58 (see FIG. 3) which causes the following welding torch 32 to stop its waiting step 59 (see FIGS. 3 and 5) and its waiting time and an ignition step 60 (see FIG and 5) with the ignition of the second arc 48 followed by an initial welding process 61 (see FIGS. 3 and 5) of the second welding torch 32. The initial welding process 10 61 of the second welding torch 32 is also a cold metal transfer welding process with the welding wire 44 moved back and forth. The control signal 58 can be embodied in particular as a digital signal. Preferably, it is indicated by means of a specially provided bit that the waiting time or the Wartcschritt 59 for the following welding 15 burner 32 abgclaufen or terminated.
    Parallel to the ignition of the second arc 48 at the following welding torch 32, the main welding process 62 starts at the leading welding torch 31 (see FIGS. 3 and 4), which is executed, for example, as a pulse welding process 20.
    Dar starting process of the two welding torches 31 and 32 is characterized by a defined waiting time bcabslandete time ignition of the two arcs 47 and 48. This makes it possible to avoid undefined freezing conditions. Rather, it is clearly defined at each point in which state the two welding torches 31 and 32 are located. In this way, even during the starting process, it is possible to determine very precisely how much material is being applied to the workpiece 27 for the purpose of forming the 29/03/2012 15:48
    No .: R263 P.019 / 031 D FAX + Rau, c nec Sr huner • t «« · · · ♦ I · «* * * * · ·« t * · · »1 * * * * *» «·« »« ·· ♦ * * «· ·« 0 · »0 - 17-
    Weld 52 is applied and how large the penetration as well as the Wänneeintragung are. This favors very good welding results. 29/03/2012 15:48
    No .: R263 P.020 / 031
    权利要求:
    Claims (18)
    [1]
    29 03 2012 TH 15:49 FAX +49 911 209549 Rau, Schnee 9 Huener · * ·· ···· ·· ** ** «* 9 i * · f« * * | 9 9 9 9 9 9 9 9 9 9 9 9 9 9 99 99 9 9 18 Patentansprach 1. Welding device with a central unit (2, 35) and a Welding torch unit (18; 30) closable to the central unit (2; 35) an-5, wherein a) the central unit (2; 35) comprises at least one welding power source (3; 36,37) for providing the operation of the torches 10 b) the welding torch unit (18; 30) comprises at least one first welding torch (31) with a first welding wire (43) and a second welding torch (32) with a second flywheel (44) and the first welding torch (31) for performing a first welding process and the second welding torch 15 (32) for carrying out a second welding process, both torches (31, 32) being operable independently of each other characterized, d c) the control unit (5) is designed to perform a starting operation such that first an arc ignition occurs at one of the two welding torches (31) and after a waiting time (59) has passed since the first arc ignition a second arc ignition at the the other welding torch (32) is undeclared, and (d) the control unit (5) is de-energized, before or during the first arc ignition on one of the two torches (31), the welding wire (44) of the other of the two torches (32) with its welding wire end (50) to a waiting position (55) to overflow. 29/03/2012 15:48 No. R263 P .021 / 031 2 > 03 2012 DO 15: 4 $ fax + 4 $ > 11 20856 > Hau, Schnack & Huabnar 2 i · * ·· * · »* ·················································································································································································································· 9 9 * * * 9 · 9 · «9 -19-
    [2]
    2. Schwcißvomchlung according to claim 1, characterized in that at least one of the two welding processes as a pulse welding process, a Sprtihlichtbogen welding process, a Kurzlicfat- 5 arc welding process or a cold-metal-transfer welding process is formed or at least one as a pulse Welding process, spray arc welding process, short arc welding process or cold metal transfer welding process formed by sub-process. 10
    [3]
    3. Welding device according to claim 1 or 2, characterized in that the control unit (5) is equipped to cause a forward movement of at least one of the two welding wires (43,44) in the direction of a workpiece to be welded (27) to 15 before the arc ignition and to detect a short circuit of this welding wire (43,44) with the workpiece (27), and then, in particular, to cause a backward movement of this welding wire (44) until reaching the waiting position (55).
    [4]
    4. Welding device according to one of the preceding claims, characterized in that the control unit (5) is adapted, before the arc ignition, a forward movement of at least one of the two welding wires (44) to contact a workpiece to be welded (27) and then a RückwSrtsbewegung this welding wire (44) until a welding wire end (50) of said welding wire (44) reaches a fixed or adjustable distance (d) from the workpiece (27). 29/03/2012 15:49 No .: R263 P.022 / 031 29 03 2012 DO 15) 30 PÄX +49 911 208 Rau, chnecfc 6 HU »ner« · 99 999 «9 ··· 9999 9 99« # 9 9 «9 9« 9 9 9 9 4 9 9 999 999 99 99 9 99 99 9 99 9 9 -20-
    [5]
    5. Welding device according to one of the preceding claims, characterized in that »the waiting time (59) from the first to the second arc ignition is fixed or adjustable.
    [6]
    6. Welding device according to one of claims 1 to 4, characterized indicates »that the control unit (5) is adapted to a coupling between the two welding processes in the form her-zuuflihren that the waiting time (59) from the first to the second arc ignition is determined by a process progress of the welding process started after the first arc ignition or at least an initial process (57) of the welding process started after the first arc ignition, wherein the process as a measure of the waiting time (59) is predetermined or adjustable. 15
    [7]
    A welding apparatus according to claim 6, characterized in that a control signal (58) indicates the achievement of the relevant process progress of the welding process started after the first arc ignition or its initial process (57). 20
    [8]
    8. Welding device according to one of the preceding claims, characterized in that the waiting time (59) from the first to the second arc ignition is at most three seconds.
    [9]
    9. Welding device according to one of the preceding claims, characterized in that it is adjustable on which of the two welding torches (31,32) the first arc ignition takes place 29/03/2012 15:49 No .: R263 P.023 / 031 £ 9 03 2012 THU 15:50 FAX +49 911 208569 Rau, Schneck t > Huebner t »· * MM · * # *« »·! t · f · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ft · ft · t
    [10]
    10. Welding process with at least one first welding process and a second welding process, which are combined with one another, characterized in that a slaving process of both welding processes is carried out, 5 a) that first a first arc (47) is ignited in one of the two welding processes, and b) after the ignition of the first arc, a waiting time (59) elapses, a second arc (48) being ignited in the context of the other of the two welding processes, before or during the ignition of the first arc (47) another welding wire (44) involved in the two welding processes is overlaid with its welding wire end (50) into a waiting position (55).
    [11]
    11. Welding method according to claim 10, characterized in that at least one of the two welding processes is formed by a PuJs welding process, a spray arc welding process, a short arc welding process or a cold metal transfer welding process, or at least one pulse welding process, spray arc Welding process, short arc welding process or Kah-Mctall transfer welding process includes the sub-process
    [12]
    12, welding method according to claim 10 or 11, characterized gckennzeich-25 net »that prior to the arc ignition, a detection of at least one short circuit between a used during one of the welding processes and moving forward Schweißdrabts (43,44) and a workpiece to be welded (27) is carried out. 29/03/2012 15:50 No .: R263 P.024 / 031 29/03 2012 DO 15t50 FAX +49 911 20S569 Rau, Schnack 0 Huebnar 025 031 • ♦ * 9 ♦♦♦ * * ··· ff · « •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••• -
    [13]
    13. Welding method according to one of claims 10 to 12, characterized in that prior to the arc ignition, at least one welding wire (44) involved in the two welding processes is first moved forwards and then backwards until a workpiece (27) to be welded is touched, until a Welding wire end (SO) of this welding wire (44) reaches a fixed predetermined or adjustable distance (d) to the workpiece (27).
    [14]
    14 welding method according to one of claims 10 to 13, characterized gc-10 indicates that the waiting time (59) between the ignition of the first and the second «i arc is fixed or set.
    [15]
    15. Welding method according to one of claims 10 to 13, characterized in that a coupling between the two welding processes is provided so that the waiting time (59) between the time of formation of the first and the second arc by a process progress of the after the first arc ignition started welding process or at least an initial process (57) of the welding process started after the first arc ignition is determined, wherein the measure of the waiting time (59) serving process progress is fixed or set.
    [16]
    Welding method according to claim 15, characterized in that on reaching the relevant process step of the welding process started after the first arc ignition or its starting process (57) a control signal (58) is generated, by means of which the ignition of the second arc (48) is initiated. 29/03/2012 15:50 Nr .: R263 P.025 / 031 25/03 2012 TH 15:51 FAX +49 911 206569 Rau, Schneck 9 Huebner 026 031 # f * # ·· * U l »· t • * ···························································································································································
    [17]
    17. Welding method according to one of claims 10 to 16, characterized in that a Werl of at most three seconds is provided for the waiting time (59) between the ignition of the first arc (47) and the second arc (48). 5
    [18]
    18. Schwcißverfahren according to one of claims 10 to 17, characterized in that is set, in which of the two welding processes, the first arc ignition takes place. 29/03/2012 15:50 No .: R263 P.026 / 031
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    同族专利:
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    JP2015518424A|2015-07-02|
    EP2830807B1|2015-12-30|
    KR101631401B1|2016-06-16|
    JP5891335B2|2016-03-22|
    AT512836B1|2014-02-15|
    CN104203474B|2017-04-05|
    EP2830807A1|2015-02-04|
    CN104203474A|2014-12-10|
    KR20140142315A|2014-12-11|
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    法律状态:
    优先权:
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    AT3852012A|AT512836B1|2012-03-29|2012-03-29|Welding device with two welding torches and welding process with two welding processes|AT3852012A| AT512836B1|2012-03-29|2012-03-29|Welding device with two welding torches and welding process with two welding processes|
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    US14/388,515| US20150083699A1|2012-03-29|2013-03-25|Welding device having two welding torches and control unit for starting the arc ignition process, and welding method for welding with two welding processes under an adapted starting process|
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