• 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 plug part (21) for the detachable connection of a pipe bend (19) of a water - cooled welding torch (7) with a bushing part (34) arranged on a hose package (20) with a cylindrical pipe element (22) with an axially extending channel (23 ) for a welding wire (9) and a protective gas (5) and with at least two cooling channels (29, 30) for the return and return of a cooling liquid, and with a rotatably mounted on the tubular element (22) union nut (24) having an internal thread for connection with a corresponding external thread on the socket part (34) and such a socket part (34). To produce an optimum connection between pipe bend (19) and hose package (20) is the mouth (4 6) of a cooling channel (29) outside of the cylindrical tube member (22) and the mouth (461) of the other cooling channel (30) inside the cylindrical Pipe member (22) and in the end piece (35) of the socket part (34) a connecting channel (42) between the at least two cooling channels (40, 40 ') are arranged.
    公开号:AT512725A1
    申请号:T50115/2012
    申请日:2012-03-30
    公开日:2013-10-15
    发明作者:Klaus Oberndorfer；Daniel Platzer；Josef Raxendorfer；Sebastian Licht
    申请人:Fronius Int Gmbh；
    IPC主号:
    专利说明:

    1 ίΐ Ο 2012/50115
    The invention relates to a plug-in part for the detachable connection of a pipe bend of a water-cooled welding torch with a bushing part arranged at a hose package at most with the interposition of a burner housing, with a cylindrical tubular element with an axially extending channel for a welding wire and a protective gas, and with at least two cooling channels. and return of a cooling liquid, and with a rotatably mounted on the tubular element union nut with an internal thread for connection to a corresponding external thread on the female part.
    Furthermore, the invention relates to a female part for releasably connecting a hose assembly with a arranged on a pipe bend of a water-cooled welding torch plug part, with an at least partially cylindrical end piece with an axially extending channel for a welding wire and a protective gas and at least two cooling channels for the return and one Coolant with appropriate mouths on the tail, and with an external thread for connection to a corresponding internal thread of a union nut of the connector part.
    Finally, the invention relates to a connecting device for releasably connecting a pipe bend of a water-cooled welding torch with a hose package, wherein the pipe bend has an above-mentioned plug part and the hose package at best with the interposition of a burner housing a bushing part mentioned above. Usually, pipe bends are releasably connected to the hose package or the burner housing or torch handle of a welding torch. This allows the welder on the one hand choose from differently shaped pipe bends and use the most appropriate for the implementation of the welding process and on the other hand make an exchange of the pipe bend, if it is damaged or dirty. Conventional connections between pipe bend and hose package or burner housing are made with appropriate threads or quick fasteners such. Bayonet locks made. In addition to the necessary mechanical stability of the connection between pipe bend and hose package or burner 2 liüüii! handle or burner housing, the connection should also ensure that essentially no shielding gas leaks through leaks. Since electrical energy is transmitted via the connecting device, ie the plug part and socket part, the connecting device should also ensure the corresponding electrical line. For welding, it is advantageous if the pipe bend is designed to be rotatable at least within a certain range, so that the welding torch can always be held at the optimum angle to the intended weld seam. In the case of water-cooled welding torches, it should also be prevented that the cooling water escapes from the socket part when the pipe bend is removed. Furthermore, it is a disadvantage of conventional water-cooled welding torches that the cooling system must be switched off when the pipe bend is changed or only twisted.
    Connecting devices between pipe bend and hose package or burner housing of a welding torch known type often meet only part of the above requirements and are more complicated to handle.
    The object of the present invention is therefore to provide a plug part and a socket part of a connecting device for releasably connecting a pipe bend of a water-cooled welding torch with a hose package, through which the above requirements can be met. The plug part and socket part of such a connection device should be as simple and inexpensive to produce. In addition, at least one angular position or reference position of the pipe bend relative to the hose package or burner housing should be easy to set.
    The object of the invention is achieved by a connector part mentioned above, wherein the mouth of the at least one cooling channel for the introduction of the cooling liquid and the mouth of the at least one cooling channel for the return of the cooling liquid are arranged separately. By such an embodiment, a forced guidance of the cooling liquid in the plug part and associated pipe bend is achieved and prevents the cooling liquid, before it has reached the components to be cooled 02-04-2012 f lUii 3 reversed and flows back into the cooling unit.
    According to one embodiment of the invention, the mouth of the one cooling channel is arranged on the outside of the cylindrical tube element of the plug part and the mouth of the other cooling channel on the inside of the cylindrical tube element. This results in an optimum separation of the mouths of the leading and returning cooling channel. The mouth of the leading cooling channel can be arranged on the outside and the mouth of the recirculating cooling channel on the inside of the cylindrical tube element or vice versa.
    Preferably, a flange with at least one receiving opening for receiving a pin-shaped element of the socket part for fixing at least one angular position of the pipe bend is arranged on the cylindrical tubular element. If at least one receiving opening for receiving a pin-shaped element of the bushing part for fixing at least one angular position of the pipe bend is arranged on the flange of the cylindrical tubular element, a reference layer can be produced in at least one angular position of the pipe bend, so to speak. From this at least one reference position of the welder can move the pipe bend as needed in a desired other angular position. When providing a plurality of receiving openings for a pin-shaped element of the female part a plurality of reference positions can be set at certain angular intervals, which the welder can select depending on the welding process. A corresponding marking on the plug part and possibly socket part, for example, with corresponding notches or color markings can provide relief in this respect.
    The object of the invention is achieved by an above-mentioned plug part, wherein a flange with at least one receiving opening for receiving a pin-shaped element of the socket part for fixing at least one angular position of the pipe bend is arranged on the pipe element. For the achievable advantages, reference is made to the above paragraph.
    The receiving opening is advantageously formed by a bore. A bore, which does not have to be continuous, but also, for example, in the form of a sack
    4: -G 1
    Illbl2 / 50t15 hole can be formed, is particularly easy and quick to produce.
    If the union nut projects beyond the end of the tubular element, and a stop element for preventing axial displacement of the union nut behind the end of the tubular element is provided, the tubular element can be protected against damage or deformation.
    Between the union nut and the flange of the tubular element may be arranged a sliding ring of electrically conductive material. By such a sliding ring of electrically conductive material, a change in the angular position of the pipe bend relative to the burner handle or hose package can be easily made without the nut must be fully opened. The electrically conductive material ensures that the power transmission from the hose assembly to the pipe bend and subsequently to the contact nozzle is ensured unhindered.
    The union nut has in the direction of the free end of the pipe bend preferably smaller diameter, and may be formed in particular frusto-conical. Such a form of training facilitates handling of the union nut and prevents or reduces corresponding edges between the union nut and the pipe bend.
    The union nut may have a plastic sheath. Such a plastic sheath of suitable material and in an appropriate design, for example, with axial grooves, also facilitates handling and provides both electrical and thermal insulation to the underlying plug part of the welding torch ago.
    The object of the invention is also achieved by an above-mentioned socket part, wherein a connecting channel between the at least two cooling channels is provided in the end piece, which is closed when the plug part is connected and open with a separate plug part. The connection channel allows the reversal of the cooling liquid to the cooling unit with uncoupled or
    Getrennt 5 separate plug part and thus prevents leakage of the coolant. The cooling channels in the socket part are arranged so that they correspond with connected plug part and socket part with the above-mentioned separately arranged orifices in the plug part accordingly, so that an optimal circuit for the cooling liquid is formed.
    Furthermore, it is advantageous if a spring-mounted in the direction of the connector part pin-shaped element is provided, which is for fixing at least one angular position of the pipe bend of at least one receiving opening in the plug part can be accommodated. As a result, a kind of locking connection between the socket part and the plug part in the at least one predetermined angular position or reference position can be produced. If, as described above, a plurality of receiving openings are arranged in different angular positions in the plug part, the pin-shaped element can engage on the socket part in these different angular positions, as a result of which certain positions of the pipe bend can be identified.
    The object of the invention is also achieved by a bushing part mentioned above, wherein a pin-shaped element is resiliently mounted in the direction of the male part to be connected, which is receivable for fixing at least one angular position of the pipe bend of at least one receiving opening in the plug part. For the achievable advantages, reference is made to the last paragraph.
    The pin-shaped element preferably has a substantially hemispherical end. By such a design of the end of the pin-shaped element, this can be easily displaced upon rotation of the pipe bend relative to the socket part and a different position of the be taken with the pipe bend.
    According to a further feature of the invention, a connecting channel between the at least two cooling channels is provided in the end piece of the socket part, which is closed when the plug part is connected and is opened when the plug part is separate. By such a connecting channel between the at least two cooling channels in the socket part, a water stop at the removal of
    Pipe bend can be achieved.
    It is advantageous if a resiliently mounted by a pressure spring disposed around the channel closure element for closing the mouths of the at least two cooling channels is provided at the end piece with a separate connector part. This closure element ensures that no cooling water escapes when the plug part is removed from the socket part.
    The object of the invention is also achieved by a connecting device for releasably connecting a pipe bend of a water-cooled welding torch with a hose package possibly with the interposition of a burner housing, the pipe bend having a plug part with the above features and the hose package a female part with the above features. For the achievable advantages reference is made to the above description of the plug part and socket part.
    The plug part is connected to the pipe bend, preferably soldered. Such a compound can be made particularly quickly and easily. Alternatively, the compound can also be made by pressing or gluing with suitable adhesives.
    The female part is connected to the end of a hose package possibly with the interposition of a burner housing. The connection of the female part with the end of the hose package or the burner housing can also be done by various ways, in particular by gluing.
    If the pipe bend with respect to the hose package is rotatable by 360 °, wherein at least one angular position of the pipe bend is determined by the at least one receiving opening in the plug part and the pin-shaped element in the socket part, a special flexibility for all welding methods can be achieved.
    In order to prevent a pipe bend of a water-cooled welding torch from being connected to the socket part on the burner housing or hose package for a gas-cooled welding torch, the 7 7 02 $ 4-Μί1
    If the dimensions of the plug parts and socket parts of water-cooled welding torches and gas-cooled welding torches are preferably designed differently. Such a different design can be achieved for example in the form of different diameter of the union nut and the like.
    The present invention will be explained in more detail with reference to the accompanying schematic drawings. Show:
    Fig. 1 is a schematic representation of a welding device;
    Fig. 2 shows a pipe bend with a plug part and associated
    Female part in a separate state in a partially cut representation;
    3 shows the pipe bend with plug part and socket part of Figure 2 in the connected state in a partially sectioned view ..;
    Fig. 4 shows the pipe bend with plug part and socket part of Figure 2 in the connected state in another position in a partially sectioned view.
    5 shows an end view of the plug-in part connected to the pipe bend according to FIGS. 2 to 4;
    6 shows an end view of the socket part according to FIGS. 2 to 4;
    FIG. 7 is an oblique view of the plug part connected to the pipe bend according to FIGS. 2 to 4; FIG. and
    Fig. 8 shows the plug part and socket part in a separate state shown in FIG. 2 in an enlarged view.
    In Fig. 1 is a welding device 1 for a variety of processes or procedures, such. MIG / MAG, TIG / TIG, electrode, double wire / tandem welding, plasma or soldering, etc. are shown.
    The welding device 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 for example with a control valve
    8, which is arranged in a supply line for a protective gas 5, such as CO 2, helium or argon and the like., Between a gas reservoir 6 and a welding torch 7.
    In addition, a device 8 for conveying a welding wire 9 from a supply drum 10 or a wire roller into the area of the welding torch 7 can be actuated via the control device 4, as is customary for MIG / MAG welding, for example. Of course, the conveyor device 8 in the welding device 1, in particular in the housing 11 of the power source 2, integrated and not, as shown in Fig. 1, be positioned as an additional device on a carriage 12. The conveyor 8 for the welding wire 9 can also be placed directly on the welding device 1, wherein the housing 11 of the power source 2 is formed at the top for receiving the conveyor 8, and the carriage 12 can be omitted.
    The welding wire 9 can also be supplied to the processing station outside the welding torch 7 by a conveying device 8, wherein a non-consumable electrode is preferably arranged in the welding torch 7, as is usual in TIG / TIG welding.
    The current for constructing an arc 13, in particular a working arc, between the electrode or the welding wire 9 and a workpiece 14 formed from one or more parts is in particular via a welding line (not shown) from the power source 3 of the power source 2, the welding torch 7 the electrode or the welding wire 9, respectively. The workpiece 14 to be welded is connected via a further welding line (not shown) for the further potential, in particular a ground cable, to the current source 2, whereby a circuit for a process can be established via the arc 13 or a plasma jet formed. When using a torch with internal arc 13, as may be the case with a plasma torch, the two welding lines are led to the burner, so that in the burner a corresponding circuit can be constructed (not shown).
    To cool the welding torch 7, it is cooled by a cooling device Ö2-Ö * 0 0i2 st-. * *;
    9 15 with the interposition of any components, such as a flow switch, with a liquid container, in particular a water tank 16 with a level indicator 17, respectively. When starting the welding torch 7, the cooling device 15, in particular a liquid pump used for the liquid arranged in the water tank 16, is started, whereby a cooling of the welding torch 7 is effected. As shown in the illustrated embodiment, 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 device 1, that is, the current source 2, the wire feed device 8 and the cooling device 15, are designed such that they have corresponding projections or recesses, so that they can be safely stacked on each other or placed on each other.
    The welding device 1, in particular the power source 2, further has an input and / or output device 18, via which the most varied welding parameters, operating modes or welding programs of the welding device 1 can be set or called up and displayed. The welding parameters, operating modes or welding programs set via the input and / or output device 18 are forwarded to the control device 4, and then the individual components of the welding device 1 are controlled or corresponding setpoint values for the control or regulation are specified by the latter.
    In the illustrated embodiment, the welding torch 7, comprising a pipe bend 19 and possibly a burner housing 7 'is connected via a hose package 20 to the welding device 1. In the hose package 20, the individual lines, such as the supply line, lines for the welding wire 9, the protective gas 5, the cooling circuit, the data transmission, etc., arranged by the welding device 1 to the welding torch 7, whereas the ground cable preferably separately on the Power source 2 is connected. The hose package 20 is preferably connected via a coupling device, not shown, to the power source 2 or the conveyor 8, whereas the individual lines are fastened in the hose assembly 20 on or in the welding torch 7. In order for a corresponding tensile relief of the hose package 20 to be ensured, the hose package 20 can be connected to the housing 11 of the power source 2 or the conveyor device 8 via a strain relief device (not shown). In order to enable an exchange of the pipe bend 19 of the welding torch 7, this is connected via a corresponding connection device with the hose package 20 or a burner housing 7 ', which is attached to the hose package 20. The connecting device includes a connector part 21 explained in greater detail with reference to FIGS. 2 to 7, which is connected to the pipe bend 19 of the welding torch 7 and a socket part 34 which is connected to the hose package 20 or to a burner housing 7 'connected to the hose package 20.
    In principle, not all of the previously named components must be used or used for the different welding methods or welding devices 1, such as TIG devices, MIG / MAG devices or plasma devices. If the welding torch 7 is designed as a gas-cooled welding torch 7, the cooling device 15 can also be omitted. The welding device 1 is formed at least by the power source 2, the conveying device 8 and possibly the cooling device 15, wherein these components can also be arranged in a common housing 11. There may be other parts or components, such as a grinding contactor on the wire feeder 8 or an option carrier on a holding device for the gas storage 6, etc., are arranged.
    The embodiment of a welding device 1 shown in FIG. 1 represents only one of many possibilities. In particular, the welding devices 1 can be used with regard to the supply of the welding wire 9, the length of the hose package 20, the type, position and number of conveying devices 8 for the welding wire 9, the presence of a wire buffer (not shown) and much more.
    Fig. 2 shows a pipe bend 19 with a plug part 21 and associated socket part 34 in a separate state in a partially sectioned representation. The plug part 21 is connected to the pipe bend 19 of the welding torch 7, preferably
    HÖ2O12 / S011S 11 solders. The plug part 21 comprises a cylindrical tube element 22 with an axially extending channel 23 for a welding wire 9 and a protective gas 5 (not shown). In the cylindrical tube member 22 and at least two cooling channels 29, 30 for returning the coolant to the pipe bend 19. The cooling liquid is passed from the cooling device 15 via at least one cooling channel 29 in the plug part 21 to be cooled points of the welding torch in the contact nozzle. There, the cooling liquid is reversed and is transported back via at least one cooling channel 30 with the heat absorbed. Via corresponding cooling channels in the hose package 20, the cooling liquid is then conveyed back into the cooling device 15 (see FIG. 1). The cooling channels 29, 30 terminate in corresponding mouths 46, 46 ', which coincide when connecting the plug part 21 with the associated socket part 34 with mouths 41, 41' of the cooling channels 40, 40 'in the socket part 34, so that an unhindered flow of the cooling liquid between the refrigerator 15 and contact nozzle of the welding torch 7 is ensured.
    On the tubular element 22 of the male part 21, a union nut 24 is rotatably arranged, which union nut 24 has an internal thread which can be screwed onto a corresponding external thread on a cylindrical end piece 35 of the associated female part 34. In order to protect the end 27 of the tubular element 22 from deformation, it is advantageous if the union nut 24 projects beyond the end 27 of the tubular element 22 and a stop element 28 is provided which prevents axial displacement of the union nut 24 behind the end 27 of the tubular element 22. The plug part 21 has a flange 25 on which at least one receiving opening 26 can be provided, into which receiving opening 26 a correspondingly shaped pin-shaped element 36 of the socket part 34 can be accommodated (see FIG. 4). If the position of the pin-shaped element 36 of the socket part 34 and the receiving opening 26 on the plug part 21 match, a certain angular position of the pipe bend 19 is determined. When arranging a plurality of receiving openings 26, a plurality of angular positions of the pipe bend 19 can be set. The receiving opening 26 is formed in the simplest case by a bore. 12 12 '-Τί * .. ·················
    Heins
    Between the union nut 24 and the flange 25 of the tubular element 22 may be arranged a sliding ring 31 made of electrically conductive material. This slide ring 31 facilitates the rotation of the pipe bend 19 with loosened union nut 24th
    The union nut 24 may have in the direction of the free end of the pipe bend 19 in the region of the contact nozzle of decreasing diameter and be formed substantially frusto-conical. This facilitates handling and prevents the presence of an excessive gradation between the union nut 24 and pipe bend 19. Preferably, the union nut 24 has a plastic sheath 33 through which a thermal and electrical insulation is produced.
    The plug part 21 belonging to the socket part 34 is connected via means not shown with the hose package 20 or the burner housing 7 ', which is arranged on the hose package 20, connected (not shown). The bushing part 34 has an at least partially cylindrical end piece 35 and an axially extending channel 37 for the welding wire 9 and the protective gas 5 (not shown). Via a connection 45, a line running in the hose package 20 for supplying the protective gas 5 is connected. At the end piece 35, an external thread for connection to the corresponding internal thread of the union nut 24 of the male part 21 is arranged, so that the connection between the male part 21 and female part 34 can be fixed accordingly. At the end face of the end piece 35 of the bushing part 34 there may be a spring-mounted pin-shaped element 36 which can project at least one angular position of the pipe bend 19 into at least one receiving opening 26 in the plug part 21 (see FIG. 4). The pin-shaped element 36 preferably has a substantially hemispherical end 38, so that it can easily be deflected out of the receiving opening 26 on the flange 25 of the plug part 21 when the pipe bend 19 is rotated.
    In the socket part 34 extend at least two cooling channels 40, 40 'for the forward and return of the cooling liquid. The cooling channels 40, 40 'in the socket part are connected via corresponding connections 39, 39' to the lines running in the hose package 20 for the cooling liquid which leads to the cooling device 15. To connect the cooling channels 40, 40 'with the corresponding cooling channels 29, 30 in the plug part 21 with connected plug part 21 and socket part 34 are at the end of the end piece 35 of the female part 34, the corresponding mouths 41, 41' of the cooling channels 40, 40 '. The mouths 41, 41 'coincide with connected plug part 21 and socket part 34 with the mouths 46, 46 * of the cooling channels 29, 30 in the plug part 21, so that the cooling liquid can flow unimpeded to the end of the welding torch 7. To produce a so-called water stop system, a connecting channel 42 exists between the cooling channels 40, 40T in the socket part 34, which is preferably closed by a closing element 43 when the plug part 21 is docked on the socket part 34. Since the connecting channel 42 extends annularly around the channel 37 in the end piece 35 of the socket part 34, it is not visible in the illustrated sectional view and therefore only indicated. The closure element 43 can be pushed away from the connecting channel 42 by a compression spring 44 when the plug part 21 is removed from the socket part 34. As a result, the connecting channel 42 between the cooling channels 40, 40 'is released and the cooling liquid is returned via the connections 39, 39' to the cooling device 15. This effectively prevents coolant from leaking out of the sleeve 34 when the pipe bend 19 is rotated or uncoupled. When connecting the plug part 21 with the socket part 34, the end 27 of the cylindrical tubular element 22 of the plug part 21 presses on the closure element 43 and pushes it back against the force of the compression spring 43, whereupon the connection channel 42 is closed and the cooling liquid flows through the openings 41, 41 'to the mouths 46, 46 T of the cooling channels 29, 30 in the plug part 21 and can flow back again. It is important that the components of the male part 21 and female part 34 are dimensioned so that the connecting channel 42 is released as soon as the male part 21 has been detached from the female part 34, so that no cooling liquid can escape from the female part 34. On the other hand, the flow of the cooling liquid from the cooling unit 15 to the contact nozzle of the welding torch 7 should already be ensured when the connector part 21 is loose with the socket part 34, that is to say with the union nut 24 open or partially open. Even if the union nut 34 is loosened, for example, to twist the pipe bend 19, cooling of the welding torch 7 is ensured and leakage of cooling liquid is prevented. It is therefore possible to turn the pipe bend 19 without interrupting the cooling circuit. This represents a significant simplification for the handling of the welder, which until now switched off the cooling before changing the position of the pipe bend 19 and had to turn on the cooling again after fixing the pipe bend in the new position.
    To be able to offer the welder optimal flexibility, the pipe bend 19 of the welding torch 7 is preferably rotatable through 360 °. For the purpose of twisting the union nut 24 is easily released, so that the possible pin-shaped element 36 can be deflected out of the receiving opening 26 and can be rotated in the desired position. Thereafter, the union nut 24 is tightened again, so that an optimal connection between the plug part 21 and the socket part 34 is created.
    In Fig. 3, the pipe bend 19 is shown partially cut with plug part 21 and socket part 34 of FIG. 2 in the connected state. In the illustrated position, the closure element 43 is pushed against the compression spring 44 via the connecting channel 42, so that the cooling liquid can flow unhindered via the cooling channels 40, 40 'in the female part 34 and the cooling channels 29, 30 in the plug part 21 and thus cool the welding torch 7 accordingly can.
    Fig. 4 shows the pipe bend 19 with plug part 21 and socket part 34 of FIG. 2 in a connected state in a partially sectioned view in a relation to FIG. 3 slightly rotated position in which the already described pin-shaped element 36 on the socket part 34 is visible. In the illustrated position, the pipe bend 19 is in the predetermined angular position in which the pin-shaped element 36 projects into the receiving opening 26 on the flange 25 of the male part 25. As already mentioned, the pin-shaped element 36 preferably has a substantially hemispherical end 38, so that it can easily be deflected from the at least one receiving opening 26 on the flange 25 of the plug part 21 when the pipe bend 19 is rotated. The union sleeve 24 or its plastic envelope 33 can be provided with axially extending grooves or the like in order to facilitate the handling of the union nut 24.
    From the front view of the connected to the pipe bend 19 plug part 21 of FIG. 5, the receiving opening 26 on the plug part 21 can be seen. As already mentioned, a plurality of receiving openings 26 can also be arranged on the plug part 21 in order to produce a plurality of reference positions for the pipe bend 19.
    Fig. 6 shows an end view of the socket part 34, from which the end piece 35 can be seen. Also, the pin-shaped element 36, which is resiliently mounted in the cylindrical end piece 35, and the channel 37 for the welding wire 9 and the protective gas 5 is shown.
    Fig. 7 shows an oblique view of the connected to the pipe bend 19 connector part 21. In addition to the channel 23 for the welding wire 9 and the protective gas 5, the union nut 24 and the cylindrical tube member 22 of the male part 21 is clearly visible. In the cylindrical tube member 22 extend at least two cooling channels 29, 30 for back and forth guidance of the cooling liquid to the pipe bend 19. The mouths 46, 46 'of these cooling channels 29, 30 are arranged so that there is a so-called forced guidance of the cooling liquid to the parts to be cooled the welding torch comes and a reversal of the cooling liquid in the region of the plug part 21 can be prevented. This is achieved in that the mouth 46 of the at least one cooling channel 29 for the forwarding of the cooling liquid and the mouth 46f of the at least one cooling channel 30 for the return of the cooling liquid are arranged offset. For example, the cooling channels 29, 30 may be arranged coaxially with one another in the cylindrical tubular element 22 and have the mouth 46 for the one cooling channel 29 radially outward and the mouth 46 'for the other cooling channel 30 in the axial direction (see also Fig. 8 ).
    Finally, FIG. 8 shows the plug part 21 and socket part 34 in the separated state according to FIG. 2 in an enlarged view. Reference is made to the description of FIG. 2. 8, at least one sealing ring 47 can be arranged on the end face of the closure element 43, which points in the direction of the plug part 21. Also, in the annular gap, in which the cylindrical tube element 22 of the plug part 21 is inserted when connecting with the socket part 34, further sealing rings 47. This effectively prevents the cooling liquid from escaping when the plug part 21 is separated from the socket part 34. It can clearly be seen that the two cooling channels 40 and 40 'are specially arranged in the socket part 34. The one cooling channel 40 lies outside of the annular space occupied by the compression spring 44 in the end piece, while the other cooling channel 40' opens in the annular space in which the compression spring 44 is arranged Arrangement, the connection with the cooling channels 29, 30 in the plug part 21 at verbun denem plug part 21 and socket 34 without leakage of the coolant and without the risk of accidental reversal of the coolant before it reaches the components to be cooled in the Svchweißbrenner 7.
    When connecting the male part 21 with the female part 34, the closure element 43 is pushed back through the cylindrical tube member 22 of the male part in the annular channel of the end piece 35 and the mouth 41 of the cooling channel 40 in the female part 34 is above the annular space at the end of the cylindrical tubular member 22 in which the outer mouth 46 of the cooling channel 29 is arranged on the cylindrical tubular element 22 of the plug part 21. The mouth 41 'of the other cooling channel 40' in the socket part 34, however, points in the axial direction in the annular space of the end piece 35 outwardly to the inside of the cylindrical tubular element 22 of the plug part 21 arranged mouth 46 'of the other cooling channel 30. By this separate arrangement of the mouths 46, 46 'of the cooling channels 29, 30 in the plug part 21 can be prevented that the cooling liquid already reverses in the region of the connecting device, without having cooled the components in the welding torch 7. By the illustrated offset or separate arrangement of the orifices 46, 46 ', the above-mentioned positive guidance of the cooling liquid is achieved.
    If the union nut 24 slightly loosened, which is in the 17th
    Annulus of the end piece 35 located closure member 43 is pushed in the form of a tubular member by the compression spring 44 in the plug member 21, whereby the connecting channel 42 is released and the cooling liquid is returned to the cooling unit 15. At the same time a flow of the cooling liquid in the direction of the plug part is prevented by the corresponding construction of the closure element 43 and the annular space in the end piece 35, since the closure element 43 together with the sealing rings 47 prevents leakage of the cooling liquid. After the desired position of the pipe bend 19 has been taken and the union nut 24 has been tightened again, the closure element 43 is again in a position in which the connecting channel 42 is blocked and the annular space in the end piece 35 is released in the direction of the plug part. Thus, a rapid change in the position of the pipe bend 19 or a change of the pipe bend 19 is possible even without deactivating the cooling system of the welding device.
    In order to prevent unsuitable pipe bends 19 from being able to be connected to the socket part 34 of the connecting device, it is advantageous if the dimensions of the connecting device, for example in gas-cooled welding torches 7 and water-cooled welding torches, are chosen differently. Thus it can be prevented that a pipe bend 19 is connected for a gas-cooled welding torch 7 with a hose package for a water-cooled welding torch and vice versa.
    权利要求:
    Claims (19)
    [1]
    18 claims: 1. plug part (21) for releasably connecting a pipe bend (19) of a water-cooled welding torch (7) with one on a hose assembly (20) at most with the interposition of a burner housing (7 ') arranged bushing part (34}, with a cylindrical tubular element (22) with an axially extending channel (23) for a welding wire (9) and a protective gas (5) and with at least two cooling channels (29, 30) for leading and returning a cooling liquid, and with a rotatable tube element (22) arranged union nut (24) having an internal thread for connection to a corresponding external thread on the socket part (34), characterized in that the mouth (46) of the at least one cooling channel (29) for the introduction of the cooling liquid and the mouth (46 ') of at least a cooling channel (30) are arranged separately for the return of the cooling liquid.
    [2]
    2. Plug part (21) according to claim 1, characterized in that the mouth (46) of the cooling channel (29) on the outside of the cylindrical tube element (22) and the mouth (46 ') of the other cooling channel (30) inside the cylindrical tube element (22 ) is arranged.
    [3]
    3. Plug part (21) according to claim 1 or 2, characterized in that the tubular element (22) has a flange (25) with at least one receiving opening (26) for receiving a pin-shaped element (36) of the socket part (34) for fixing at least one Angular position of the pipe bend (19) is arranged.
    [4]
    4. Plug part (21) for detachable connection of a pipe bend (19) of a water-cooled welding torch (7) with a hose assembly (20) at most with the interposition of a burner housing (7 ') arranged bushing part (34), with a cylindrical tubular element (22) with an axially extending channel (23) for a welding wire (9) and a protective gas (5) and with at least two cooling channels (29, 30) for the return of a cooling fluid, and with a union nut rotatably mounted on the tubular element (22) ( 24) with an internal thread for connection to a corresponding external thread on the bushing part (34), characterized in that on the tubular element (22) has a 19 19 02-04-2012 IIÜWWl flange (25) with at least one receiving opening (26) for receiving a pin-shaped Element (36) of the sleeve part (34) for fixing at least one angular position of the pipe bend (19) is arranged.
    [5]
    5. plug part (21) according to claim 3 or 4, characterized in that the receiving opening (26) is formed by a bore.
    [6]
    6. plug part (21) according to one of claims 1 to 5, characterized in that the union nut (24) projects beyond the end (27) of the tubular element (22), and a stop element (28) for preventing axial displacement of the union nut (24 ) is provided behind the end (27) of the tubular element (22).
    [7]
    7. plug part (21) according to one of claims 1 to 6, characterized in that between the union nut (24) and the flange (25) of the tubular element (22) a sliding ring (31) is arranged made of electrically conductive material.
    [8]
    8. plug part · (21) according to one of claims 1 to 7, characterized in that the union nut (24) in the direction of the free end of the pipe bend (19) of decreasing diameter, and is preferably frusto-conical.
    [9]
    9. plug part (21) according to one of claims 1 to 8, characterized in that the union nut (24) has a plastic sheath (33).
    [10]
    10. socket part (34) for releasably connecting a hose assembly (20) to a pipe bend (19) of a water-cooled welding torch (7) arranged plug part (21), with an at least partially cylindrical end piece (35) having an axially extending channel (34). 37) for a welding wire (9) and a protective gas (5) and at least two cooling channels (40, 40 ') for the return and return of a cooling liquid with corresponding orifices (41, 41') on the end piece (35), and with an external thread for connection to a corresponding internal thread of a union nut (24) of the plug part (21), characterized in that in the end piece (35) a connecting channel (42) between the at least two cooling channels (40, 40 ') is provided, which in connected plug part (21) is closed and opened with a separate plug part (21).
    [11]
    11. socket part (34) according to claim 10, characterized in that in the direction of the plug part to be connected (21) resiliently mounted pin-shaped element (36) is provided which defines at least one angular position of the pipe bend (19) of at least one receiving opening ( 26) in the plug part (21) is receivable.
    [12]
    12. socket part (34) for detachably connecting a hose assembly (20) to a pipe bend (19) of a water-cooled welding torch (7) arranged plug part (21), with an at least partially cylindrical end piece (35) having an axially extending channel (34). 37) for a welding wire (9) and a protective gas (5) and at least two cooling channels (40, 40 ') for the return and return of a cooling liquid with corresponding orifices (41, 41') on the end piece (35), and with an external thread for connection to a corresponding internal thread of a cap nut (24) of the plug part (21), characterized in that a pin-shaped element (36) is provided which is resiliently mounted in the direction of the plug part (21) to be connected, which pin is at least one angular position of the pipe bend ( 19) of at least one receiving opening (26) in the plug part (21) is receivable.
    [13]
    13. socket part (34) according to claim 11 or 12, characterized in that the pin-shaped element (36) has a substantially hemispherical end (38).
    [14]
    14. socket part (34) according to claim 12 or 13, characterized in that in the end piece (35) has a connection channel (42) between the at least two cooling channels (40, 40 ') is provided, which in connected plug part (21) closed and at separated plug part (21) is open.
    [15]
    15. socket part (34) according to claim 14, characterized in that by a to the channel (37) arranged compression spring (44) resiliently mounted closure element (43) for closing [102012 / 501.15 WIM 21 of the mouths (41, 41 ') the at least two cooling channels (40, 40 ') are provided on the end piece (35) when the plug part (21) is separate.
    [16]
    16. Connecting device for releasably connecting a pipe bend (19) of a water-cooled welding torch (7) with a hose package (20), wherein the pipe bend (19) a plug part (21) according to one of claims 1 to 9 and the hose package (20) at most below Intermediate arrangement of a burner housing (7T) has a socket part (34) according to one of claims 10 to 15.
    [17]
    17. Connecting device according to claim 16, characterized in that the plug part (21) connected to the pipe bend (19), preferably soldered, is.
    [18]
    18. Connecting device according to claim 16 or 17, characterized in that the socket part (34) with the end of a hose assembly (20) at most with the interposition of a burner housing (7T) is connected.
    [19]
    19. Connecting device according to one of claims 16 to 18, characterized in that the pipe bend (19) relative to the hose package (20) is rotatable through 360 °, wherein at least one angular position of the pipe bend (19) through the at least one receiving opening (26) in Plug part (21) and the pin-shaped element (36) in the socket part (34) is fixed.
    类似技术:
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    DE1540860B1|1972-05-25|FLEXIBLE DEVICE FOR SUPPLYING WELDING WIRE, WELDING CURRENT, PROTECTIVE GAS AND COMPRESSED GAS TO A WELDING GUN
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    DE1565535A1|1970-02-05|Welding tool for inert gas arc welding of circumferential seams inside pipes
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    同族专利:
    公开号 | 公开日
    AT512725B1|2014-02-15|
    EP2800648A1|2014-11-12|
    CN104185530A|2014-12-03|
    WO2013142888A1|2013-10-03|
    US20150114943A1|2015-04-30|
    EP2800648B1|2018-10-03|
    ES2704256T3|2019-03-15|
    US9533369B2|2017-01-03|
    CN104185530B|2017-03-01|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE2243924A1|1972-09-07|1974-03-21|Messer Griesheim Gmbh|Gas shielded electric arc welding gun - is simply adaptable and manipulatable|
    WO1998009765A1|1996-09-02|1998-03-12|Alexander Binzel Gmbh & Co. Kg|Arc welding or cutting torch|
    DE889768C|1951-11-07|1953-09-14|Linde Eismasch Ag|Supply cable for supplying the welding current to devices for electric arc welding|
    CH384745A|1960-04-22|1965-02-26|Oerlikon Buehrle Ag|Inert gas welding device with detachable connection of the torch lines|
    US3234317A|1963-06-12|1966-02-08|Arcair Co|Swivel coupling for a combined fluid conduit and electric cable|
    BE788809A|1971-09-16|1973-01-02|Messer Griesheim Gmbh|WELDING TORCH|
    US3775584A|1972-11-30|1973-11-27|D Moerke|Welding gun|
    US4158763A|1977-08-04|1979-06-19|Moerke Delford A|Curved nozzle welding gun|
    US4313046A|1980-03-10|1982-01-26|Hobart Brothers Company|Water cooled welding gun|
    US4549068A|1983-12-09|1985-10-22|Kensrue Milo M|Welding torch having swivel head assembly|
    DE3420821C1|1984-06-05|1988-01-21|Hans Flohe GmbH & Co, 4620 Castrop-Rauxel|Water-cooled heavy-current cable I|
    US4864099A|1987-03-19|1989-09-05|Tweco Products, Inc.|Water cooled semi-automatic welding gun|
    JP2914088B2|1993-04-16|1999-06-28|住友電装株式会社|Connector with rotation guide|
    US20070164006A1|2004-05-14|2007-07-19|Andreas Burgstaller|Method for operation of a welding unit welding unit and welding torch for such a welding unit|
    AT502844B1|2005-12-12|2007-08-15|Fronius Int Gmbh|WELDING BURNER AND END PIECE AND CONTACT TUBE FOR A WELDING BURNER|
    AT508695B1|2008-11-27|2014-02-15|Fronius Int Gmbh|CONTACT DISHES FOR CONTACTING A WELDING WIRE IN A WELDING BURNER|
    CN101708567A|2010-01-21|2010-05-19|昆山日皓焊切器材有限公司|Water cooled welding torch|CN105312726B|2015-12-05|2017-07-14|重庆镭宝激光智能机器人制造有限公司|Flame welding gun fixed mount for welding robot|
    AU2017357030A1|2016-11-11|2019-05-23|The Esab Group Inc.|Quick disconnect torch handle|
    US10766093B2|2016-11-15|2020-09-08|American Torch Tip, Co.|Reduced friction rotating coupler assembly and quick disconnect for use with welding devices|
    WO2018118790A1|2016-12-19|2018-06-28|Hypertherm, Inc.|Connecting plasma arc torches and related systems and methods|
    JP6923266B2|2017-06-15|2021-08-18|株式会社ダイヘン|Welding torch cooling system|
    CN108176917A|2018-03-01|2018-06-19|姜龙河|Golden dragon gas cooling type electric torch attachment device|
    CN108683037A|2018-04-17|2018-10-19|浙江吉利汽车研究院有限公司|A kind of connector and electric vehicle with refrigerating function|
    CN110556661A|2018-06-01|2019-12-10|中兵航联科技股份有限公司|Cable assembly based on aviation steering valve system|
    EP3620254A1|2018-09-06|2020-03-11|FRONIUS INTERNATIONAL GmbH|Mig/mag welding torch body, mig/mag welding torch handle and mig/mag welding torch with such a welding torch body and mig/mag welding torch handle|
    CN110548934A|2019-10-11|2019-12-10|含山县荣源金属制品有限公司|Bent pipe chamfering machine|
    CN112310723B|2020-11-11|2022-03-01|常州特尔玛科技股份有限公司|Detachable and quick-mounting cable end European connector|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50115/2012A|AT512725B1|2012-03-30|2012-03-30|Plug part and socket part for releasably connecting a pipe bend of a water-cooled welding torch with a hose package and connecting device with such a plug part and socket part|ATA50115/2012A| AT512725B1|2012-03-30|2012-03-30|Plug part and socket part for releasably connecting a pipe bend of a water-cooled welding torch with a hose package and connecting device with such a plug part and socket part|
    EP13713071.2A| EP2800648B1|2012-03-30|2013-03-06|Plug part and socket part for detachably connecting a pipe elbow of a water-cooled welding torch and connecting device|
    PCT/AT2013/050057| WO2013142888A1|2012-03-30|2013-03-06|Plug part and socket part for detachably connecting a pipe elbow of a water-cooled welding torch and connecting device|
    ES13713071T| ES2704256T3|2012-03-30|2013-03-06|Part of connector and part of bushing for the detachable connection of a tube elbow of a water-cooled torch thus, as a joining device|
    CN201380010305.4A| CN104185530B|2012-03-30|2013-03-06|Male component for the tubular corner of detachably connected water cooled welding torch and female component and attachment means|
    US14/388,891| US9533369B2|2012-03-30|2013-03-06|Plug part and socket part for detachably connecting a pipe elbow of a water-cooled welding torch and connecting device|
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