• 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:
    Cooled welding torch (1) with a cooling circuit, which cooling circuit extends over a nozzle holder (3) into a gas nozzle (9) and the gas nozzle (9) with a defined rotation on the welding torch (1) can be fastened, wherein the cooling circuit through a deflecting element (5) is, which deflection element (5) is positioned above the nozzle holder (3) and is rotatable together with the gas nozzle (9), wherein a path of the cooling circuit with the position of the gas nozzle (9) is switchable.
    公开号:AT513485A4
    申请号:T501482013
    申请日:2013-03-06
    公开日:2014-05-15
    发明作者:Klaus Oberndorfer；David Preundler；Stefan Pühringer；Anton Preundler
    申请人:Fronius Int Gmbh；
    IPC主号:
    专利说明:

    1
    The invention relates to a cooled welding torch with a cooling circuit, which comprises a coolant variant line and a coolant return line, which cooling circuit extends via a nozzle holder into a gas nozzle and the gas nozzle is fixed with a defined rotation on the welding torch.
    Different cooled welding torches are known from the prior art. For example, e.g. From DE 42 29 227 CI a protective gas welding torch known which has a cooling circuit which extends to the nozzle head. The welding torch has a water supply line and a water return line as well as a bypass, by which it is possible that the water supply line and the water return capacity are connected to each other before the burner neck and fluidically a parallel connection for the supplied water is formed. Furthermore, valves are provided, through which the water supply and the water return can be shut off. Furthermore, DD 235 582 A1 shows a method for controlling the flow of cooling water in a welding torch, the cooling water flow being released or switched off or diverted by means of a magnetic switch.
    In principle, various types of cooled welding torches are known, in which a coolant supply line and a coolant return line form the cooling circuit, wherein the cooling circuit extends to the gas nozzle and whereby the gas nozzle is subsequently cooled. A disadvantage has proved in the known variants in particular that in the case of disassembly of the cooled gas nozzle, a coolant outlet is the result. When removing the gas nozzle, it is inevitable to a coolant outlet through the coolant, which is still in the gas nozzle at this time or in the flow and return line.
    Based on the prior art, the present invention seeks to provide a cooled welding torch, which keeps a cooling circuit permanently upright, even if the gas nozzle is removed and at the same time a coolant outlet 2/21 2 is prevented.
    According to the invention, this object is achieved in that, depending on the position of the gas nozzle either a shortened cooling circuit or an extended cooling circuit is provided. It is relevant that simultaneously with the gas nozzle, a deflecting element is rotated, by which it is possible for either a shortened or an extended cooling circuit is created and on the other a coolant or water leakage is prevented by the deflection always on the same axial position remains and changes only the radial rotational position. A coolant-through in the deflection is always guaranteed, even with disassembled gas nozzle. This is made possible by the deflection element and the gas nozzle being rotated together but not dismantled together. The welding torch according to the invention avoids the disadvantages of the welding torches used hitherto and at the same time implements advantageous solutions. The associated subclaims indicate favorable extensions.
    Particularly advantageous is the execution in the sense of the main claim. Accordingly, the object according to the invention is a cooled welding torch with a cooling circuit, wherein the cooling circuit is regulated by means of a deflecting element which is arranged above the nozzle holder, and wherein the cooling circuit is diverted or returned depending on the position of the gas nozzle. Depending on the position or rotation of the gas nozzle and the deflection element, the cooling circuit is also guided into the gas nozzle, whereby the gas nozzle is cooled.
    The deflection element is positioned above the nozzle holder and is rotated together with the gas nozzle. It has proven to be particularly advantageous that the gas nozzle can be dismantled in the basic position and at the same time a coolant outlet is avoided. This is achieved in that the opening of the first plane of the deflecting element coincides with the inlet opening of the nozzle holder and then the coolant thus introduced is redirected radially to the opposite side and at the opposite opening of the first plane 3/21 3 in the outlet opening of the nozzle holder : is initiated. Thus, the coolant is passed through the deflection and then returned directly. There is thus no cooling of the gas nozzle. At the same time, the openings of the second cooling channel are not positioned above the inlet opening of the nozzle holder. As a result, it is not possible for coolant to flow into the second cooling channel and, in this way, subsequently flow into the gas nozzle, as a result of which cooling of the gas nozzle would be possible. It follows that either the first cooling channel or the second cooling channel is flowed through in the deflecting element. As further particularly advantageous has been found that thus no separate blocking of the coolant flow or the coolant return must be made to make a change of the gas nozzle. The blockage of the coolant supply takes place only by turning the gas nozzle in the basic position. Another advantage is that it prevents in this way that the coolant escapes unintentionally.
    A further advantage is to be considered in this sense that the deflection element is designed in several parts, whereby different configurations of the cooling channels are made possible.
    In a further advantageous embodiment of the device according to the invention, a positively driven path is provided in the deflection element, by means of which it is made possible that the tracking resistance increases. This has the consequence that an electrochemical corrosion is significantly reduced, which can cause damage to the nozzle holder and other essential elements of the welding torch.
    Also advantageous is the possibility that the deflection element consists of electrically insulating or non-conductive material. This allows the effect described above and further extends the range of possible materials in terms of the purpose.
    It show schematically
    Fig. 1 the cooled welding torch with the device according to the invention in exploded view / 4/21 4th
    2 shows the pipe bend with the inlet opening and the outlet opening in the nozzle holder;
    3 shows an exploded view of the gas nozzle and the deflecting element in the basic position;
    4 shows an exploded view of the gas nozzle and the deflecting element in the locking position;
    FIG. 5 shows the inner ring of the deflection element with the corresponding openings for the coolant flow and the three planes; FIG. FIG. 6 shows the outer ring of the deflection element with the corresponding openings for the coolant flow and the three planes; FIG. 7 shows the deflecting element in the full view;
    Fig. 8 is a sectional view through the gas nozzle with the respective openings for the coolant flow;
    9 shows the pipe bend with the arrangement of the inner ring on the nozzle holder in the basic position. and
    Fig. 10 shows the pipe bend with the arrangement of the inner ring on the nozzle holder in the locking position.
    Fig. 1 shows the cooled welding torch 1 for performing an inert gas welding process in the exploded view. The basic arrangement is based on a pipe bend 24 ausgestaltet. Following the pipe bend 24, a nozzle stock pickup 3 is arranged. In this, an inlet opening 29 and an outlet opening 30 are integrated. Border pins 25, which are inserted between a gas nozzle receptacle 4 and the tube bend 24 and secure a deflecting element 5 against rotation, are shown below. On the nozzle holder 3, the deflection element 5 is attached. This deflection 1e-ment 5 is used to implement the effect according to the invention by depending on the position of the deflecting element 5 and the gas nozzle 9 either a shortened cooling circuit or an extended cooling circuit is made possible. The: deflection element 5 is always rotated together with the gas nozzle 9, since the deflection element 5 has elevations 10 which engage in opposite recesses of the gas nozzle 9 fen. In this respect, the deflection element 5 and the gas nozzle 9 must be rotated together. Either the gas nozzle 9 is cooled by means of the extended cooling circuit, or no cooling of the gas nozzle 9 takes place by means of the shortened cooling circuit, and the coolant is returned by means of the deflecting element 5 before it could reach the gas nozzle 9. The shortened cooling cycle is therefore active when the gas nozzle 9 is dismantled, because the cooling circuit is returned directly in the deflection element 5. It can therefore be disassembled the gas nozzle 9, without a cooling outlet occurs. Regardless of the cooling circuit is always given, since the deflection element 5 is designed so that the cooling circuit is always maintained. Shut-off of the coolant or the coolant return is not necessary since the deflection element 5 either directs the coolant flow into the gas nozzle 9 or directly returns it when the gas nozzle 9 is dismantled. The cooling circuit is thus retained at all times. The deflecting element 5 is axially secured by means of the nozzle 6. As a result, it is not possible that the deflecting element 5 can move axially away from the basic position. However, a radial rotation of the deflection element 5 remains possible. Between the deflection element 5 and the nozzle holder 3, sealing elements 2 are attached, which seal the two components from each other and prevent a coolant outlet. Placed on the nozzle 6 is a splash guard 7, which prevents adhesion of weld spatter. A contact tube 8 through which the welding wire (not shown and contacted) is mounted is mounted on the nozzle 6. The gas nozzle 9 can then be seen in the overview by means of elevations on the fastening side of the gas nozzle in opposite recesses in the gas nozzle receptacle 4 and thus is secured, in principle, any fluid, such as water, can be used as the coolant.
    Fig. 2 shows the pipe bend 24 and the nozzle holder 3 in detail. It can be seen that the nozzle holder 3 comprises an inlet opening 29 and an outlet opening 30. Furthermore, the sealing elements 2, which are required to seal the deflecting element 5 placed on the nozzle holder 3 with the nozzle holder 3 itself against each other to prevent an undefined coolant outlet. The inlet opening 29 and the outlet opening 30 of the nozzle holder 3 is used for the supply or discharge of the coolant or cooling fluid, which is subsequently passed through the deflection element 5. It is also apparent that the inlet opening 29 and the outlet opening 30 are mounted radially opposite one another in order to realize the effect according to the invention.
    3 shows an exploded view of the gas nozzle 9 and the deflecting element 5 in the basic position 27. The basic position 27 is basically defined with a rotation of 0 degrees. The cooling circuit runs in this basic position 27 in the deflection element 5. The notches 26 are not congruent to each other or rotated by 90 °. The deflecting element 5 is positioned such that one of the two elevations 10 is delimited between limiting pins 25. In this position, the gas nozzle 9 can now be mounted or dismounted without the deflecting element 5 can be rotated. Thus, the gas nozzle 9 is inserted over the deflecting element 5 until it is present at the gas nozzle receptacle 4. During assembly of the gas nozzle 9, the boundary pins 21 are pressed down or pushed in by the elevations 21 of the gas nozzle 9. Thus, the limitation is removed, and the deflection element 5 can be rotated with the gas nozzle 9.
    Fig. 4 shows an exploded view of the gas nozzle 9 and the deflecting 5 in the locking position 28, the cooling circuit extends in this locking position 28 by the deflecting element 5 in the gas nozzle 9. In this case, the deflecting element 5 and the gas nozzle 9 is arranged such that it is a Quarter turn turned are positioned. The locking position 28 is thus basically defined with a rotation of 90 degrees relative to the basic position 27. In this position, the notches 26 are congruent to each other. The deflecting element 5 is twisted together with the gas nozzle 9. The rotation itself is possible because the limiting pins 25, as described in Fig. 3, are pressed by the gas nozzle 9 down and thus allow rotation. So it grab the elevations of the gas nozzle 9 between the elevations 10 of the deflection element 5, so that the elevations form a circle substantially and thus can be rotated together. The rotation angle of 90 degrees is relevant insofar as this rotation allows the positioning of the deflecting element 5 in order to produce the cooling circuit through the gas nozzle 9.
    Fig. 5 shows the inner ring 11 of the Umlenkelernents 5. The Um- 7/21 7 steering 1ement 5 consists in principle of the inner ring 11 and the outer ring 12, that is, two parts. The inner ring 11 has openings for the coolant flow. In principle, all openings of the deflecting element 5 can be designed as individual openings or also in the form of a plurality of openings arranged directly one after the other. On the first level 16, the openings 13 of the first cooling channel 19 are arranged. On the second level 17, the openings 14 of the second cooling channel 20 are arranged. The second cooling channel 20 extends over two levels. The second level 17 and the third level 18 together comprise the second cooling channel 20. In this case, the third level 18 in the inner ring 11 has no openings. It is essential that the second cooling channel 20 is not circulating encircling, in contrast to the first cooling channel 19. The second cooling channel 20 is separated by two webs 37 from each other. These webs 37 serve to delimit the coolant flow and the coolant return from each other. The second cooling passage 20 includes a positively driven path 31 which must pass through the coolant, which allows the creep resistance to be increased. The prerequisite for this is that the second cooling channel 20 is flushed through, which is the case in the locking position 28. In this case, the opening 14 is located above the inlet opening 29 of the nozzle holder 3. Coolant flows through the inlet opening 29 of the nozzle holder 3 through the openings 14 of the second plane 17. Subsequently, the coolant flows radially along the second cooling channel 20, which by means of a horizontal web 38th is divided in the middle. The second cooling channel 20 is divided radially by means of vertical webs 37 to provide two separate areas, one for the flow and one for the return.
    FIG. 5 shows that the third plane 18 has openings 15 through which the coolant can flow (supply) or outflow (return). The inner ring 11 and the outer ring 12 together form the deflecting element 5. On the end face 33 of the inner ring 11, an oval elevation is mounted and on the inner side 34 of the outer ring 12 an oval depression. The oval elevation or the oval depression serve the position of the inner ring 11 in the 8
    Set relative to the position of the outer ring 12. This is achieved in that the oval elevation or the oval depression in the assembly of the inner ring 11 and the outer ring 12 mesh and thus rotation of the rings 11, 12 is prevented from each other. The position of the rings 11, 12 relative to one another is relevant in order to generate the function of the respectively desired cooling circuit i s1. The situation of the positioning of the inner ring 11 and the outer ring 12 by means of the oval elevation or depression is not shown.
    Fig. 7 shows the deflecting element 5 in the full view. It can be seen how the inner ring 11 and the outer ring 12 together form the deflecting element 5. Visible further are the openings 15 on the third level 18. Through these openings 15 coolant flows after it has passed the second cooling channel 20 from the second level 17 to the third level 18. Also visible are the elevations 10 of the deflecting element 5. These elevations 10 serve to implement the correct positioning of the deflecting element 5, since at least one of the elevations 10 is delimited between the limiting pins 25. Thus, the entire deflecting element 5 is held in a certain position, and can not be rotated. This position corresponds to the basic position 27.
    From Fig. 7 is also: can be seen how the positively driven track 31 is designed constructively. The openings 14 and the openings 15 are diagonal to each other, since they are mounted in different planes and also radially offset from each other. Through the openings 14, coolant enters the second cooling channel 20 on the second level 17. Subsequently, the coolant passes on two L-shaped tracks to the openings 15 on the third plane 18. The coolant thus flows in the first L-shaped course from the second plane 17 to the third plane 18 and then radially along to the openings 15 out. In the second L-shaped profile, the coolant first flows radially along the second plane 17 and flows at the end of the positively driven path 31 to the third level 18. The coolant flowing through from both L-shaped progressively exits through the openings 15. The L-shaped course is realized by a horizontal web 38 dividing the second cooling channel 20 in the middle of the channel. This subdivision is also essential to ensure increased stability of the inner ring 11, since otherwise it could buckle when assembled with the outer ring 12. The vertical webs 37 are used to realize two positively driven routes 31, each a distance for the flow and the return, which are arranged radially opposite one another.
    Fig. 8 shows a sectional view through the gas nozzle 9 in detail. On the attachment side 35 of the gas nozzle 9 elevations 21 are mounted, which engage in a rotation of the gas nozzle 9 in the opposite openings of the gas nozzle receptacle 4. Furthermore, the inlet opening 22 of the gas nozzle 9 and the outlet opening 23 of the gas nozzle 9, through which the coolant enters or exits. The elevations 21 of the gas nozzle 9 engage in the assembly in the lateral recesses of the deflection element 5 a. The lateral recesses are the intermediate space between the elevations 10 of the deflecting element 5. This makes it possible for the gas nozzle 9 to be rotated together with the deflecting element 5, since the two elements engage in one another. During rotation, the U-shaped recesses 36 of the elevations 21 engage in the opposite recesses of the gas nozzle receptacle 4, whereby a fixation of the gas nozzle 9 and the deflecting element 5 is achieved. The recesses of the gas nozzle receptacle 4 are not shown in the drawing.
    Fig. 9 shows the nozzle holder 3 with the inner ring 11 in the basic position 27. It can be seen how the inner ring 11 and subsequently the deflecting element 5 are positioned on the nozzle holder 3. The inner ring 11 is fixed in the basic position 27. Only the openings 13 of the first plane 16 of the first cooling channel 19 are located above the inlet opening 29 or the outlet opening 30 of the nozzle holder receptacle 3. In this position, coolant enters the first cooling channel 19. Thereafter, the coolant is diverted through the first cooling channel 19 to the radially opposite side, wherein the coolant accordingly runs in both directions on the opposite side. At this point 10/21 10 enters the coolant in the directly below the outlet opening 30 of the nozzle holder 3, since the outlet opening 30 of the nozzle holder 3 with the openings 13 of the first plane 16 in the basic position 22 are arranged congruently one above the other. The coolant is thus returned and does not get into the gas nozzle 9. At the same time, however, the cooling circuit is maintained because there is no shut-off of the cooling circuit. The coolant is deflected radially only in the deflection element 5: on the first plane and subsequently returned. As a result, the gas nozzle 9 can be dismantled without the need for a separate blocking of the coolant flow or return would have to take place and also an unwanted refrigerant leakage is prevented.
    Fig. 10 shows the nozzle holder 3 with the inner ring 11 in the Ärretierungsposition 28. Here, the inner ring 11 and subsequently the deflecting element 5 relative to the basic position 27 is rotated by 90 degrees. In this position, only the openings 14 of the second level 17 of the second cooling channel 20 are located directly above the inlet opening 29 of the nozzle holder receptacle 3. At this point, coolant now enters the second cooling channel 20. Subsequently, the coolant flows radially through the second cooling channel 20 aüf the third plane 18. The second plane 17 and the third plane 18 together comprise the second cooling channel 20 and are not spatially separated from each other. The coolant subsequently exits at the openings 15 of the second cooling channel 20 on the third level 18 into the inlet opening 22 of the gas nozzle 9. The openings 15 of the second cooling channel 20 of the third plane 18 are arranged directly adjacent to the inlet opening 22 of the gas nozzle 9. Subsequently, the coolant flushes through the cavity 32 of the gas nozzle 9 whereby cooling of the gas nozzle 9 is achieved. Subsequently, the coolant returns to the outlet opening 23 of the gas nozzle 9 and then passes directly to the openings of the second cooling channel 20 of the third plane 18. The openings 15 of the third plane 18 of the second cooling channel 20 are the outlet opening 23 of the gas nozzle 9 arranged directly adjacent to each other. Thereafter, the coolant in turn flows through the second cooling passage 20 to the openings 14 of the second plane 17 and thereafter flows directly into the outlet opening 30 of the nozzle holder 3. The openings 11/21 11 14 of the second plane 17 are the outlet opening 30 of the nozzle holder 3 directly adjacent arranged opposite. Subsequently, the coolant is returned through the nozzle holder 3 and the pipe bend 24, whereby the cooling circuit is closed again.
    Depending on whether the deflecting element 5 or the gas nozzle 9 is in the basic position 27 or the locking position 28, either the first cooling channel 19 flows through or the second cooling channel 20. During the rotation from the first cooling channel 19 to the second cooling channel 20 or conversely, there is a transition region in the short term, both cooling channels 19, 20 are dürchströmt. Thus, for example: the: opening 13 of the first cooling channel 19 flows through simultaneously with the opening 14 of the second cooling channel 20 as soon as the deflecting element 5 with the gas nozzle 9 is rotated from the basic position 27 into the locking position 28, but only at the beginning of the rotation. As soon as the end position of the basic position 27 or the locking position 28 is reached, only one cooling channel 19, 20 flows through, since the openings of the respective other cooling channel 19, 20 are completely outside the inlet opening 29 or the outlet opening 30 of the nozzle holder 3 , 12/21
    权利要求:
    Claims (14)
    [1]
    1. Chilled welding torch (1) with a cooling circuit, which cooling circuit extends over a nozzle holder (3) into a gas nozzle (9) and the gas nozzle (9) with a defined rotation at the welding torch (1) can be fastened, characterized in that the cooling circuit is guided by a deflection element (5), which deflection element (5) is positioned above the nozzle holder (3) and is rotatable together with the gas nozzle (9), one path of the cooling circuit being in line with the position of the gas nozzle (9). is switchable.
    [2]
    2. cooled welding torch (1) according to claim 1, characterized in that in a basic position (27) of the gas nozzle (9) of the cooling circuit in the deflection element (5),
    [3]
    3. Cooled welding torch (1) according to claim 1 or 2, characterized in that in a locking position (28) of the gas nozzle (9) of the cooling circuit through the deflecting element (5) in the: gas nozzle (9).
    [4]
    4. Cooled welding torch (1) according to one of claims 1 to 3, characterized in that the Umlenkeiernent ('S) consists of an inner ring (11) and, an outer ring (12).
    [5]
    5. Cooled welding torch (1) according to claim 4, characterized in that the deflecting element (5) comprises a first cooling channel (19) and a second cooling channel (20), which by assembling the inner ring (11) and the outer ring (12 ) arise.
    [6]
    6. Cooled welding torch (1) according to claim 5, characterized in that the first cooling channel (19) openings (13) in the first plane (16).
    [7]
    Cooled welding torch (1) according to claim 5 or 6, characterized in that: the second cooling channel (20) has openings (14) in the second plane (17) and openings (15) in the third plane (18). 13/21 13
    [8]
    8. Cooled welding torch (1) according to claim 6 or 7, characterized in that in the basic position (27) of the gas nozzle (9) the openings (13) of the first cooling channel (19) in the first plane (16) above the inlet opening ( 29) and the outlet opening (30) of the nozzle holder (3) are located.
    [9]
    9. Cooled welding torch (1) according to claim 7 or 8, characterized in that in the locking position (28) of the gas nozzle (9), the openings (14) of the second cooling channel (20) of the second plane (17) above the inlet opening (29 ) or the outlet opening (30) of the nozzle holder (3).
    [10]
    10. Cooled welding torch (1) according to one of claims 7 to 9, characterized in that the openings (15) of the second cooling channel (20) of the third plane (18) of the inlet opening (22) and the outlet opening (23) of the gas nozzle ( 9) are arranged adjacent to each other.
    [11]
    11. Cooled welding torch (1) according to one of claims 2 to 10, characterized in that the deflecting element (5) has elevations (10) which are limited in the basic position (27) by limiting pins (25) in the gas nozzle receptacle (4) ,
    [12]
    12. Cooled welding torch (1) according to one of claims 5 to 11, characterized in that the first cooling channel (19) and the second cooling channel (20) by sealing elements (2) are completed against each other.
    [13]
    13. Cooled welding torch (1) according to one of claims 1 to 12, characterized in that the deflecting element (5) consists of electrically insulating material.
    [14]
    14. Cooled welding torch (1) according to any one of claims 1 to 13, characterized in that the deflecting element (5) comprises a positively driven track (31). 14/21
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    同族专利:
    公开号 | 公开日
    US9731374B2|2017-08-15|
    CN104028881B|2017-11-21|
    US20140251973A1|2014-09-11|
    DE102014203600A1|2014-09-25|
    DE102014203600B4|2018-07-19|
    AT513485B1|2014-05-15|
    CN104028881A|2014-09-10|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
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    IT225262Z2|1991-09-25|1996-10-24|"TORCH FOR ELECTRIC CONTINUOUS WIRE WELDERS, WITH NATURAL, GAS OR WATER COOLING, CHARACTERIZED BY A RAPID AND SEM PLIFIED ASSEMBLY".|
    DE4229227C1|1992-09-02|1993-09-02|Alexander Binzel Gmbh & Co Kg, 6300 Giessen, De|Water-cooled inert gas welding torch with cooling circulation - has water supply and return hoses coupled to torch body, water supply and return channels through torch stem to nozzle and by=pass with valve connecting supply and return|
    CA2210136A1|1995-01-31|1996-08-08|Komatsu Ltd.|Processing torch|
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    DE102015204812A1|2015-03-17|2016-09-22|Christian Günther|Coolant supply device, controller for such device and method of operating such coolant supply|
    US10786863B2|2016-12-28|2020-09-29|Illinois Tool Works Inc.|Nozzle and gas diffuser assemblies for welding torches|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    AT501482013A|AT513485B1|2013-03-06|2013-03-06|welding torch|AT501482013A| AT513485B1|2013-03-06|2013-03-06|welding torch|
    DE102014203600.3A| DE102014203600B4|2013-03-06|2014-02-27|welding torch|
    US14/197,472| US9731374B2|2013-03-06|2014-03-05|Welding torch|
    CN201410079170.3A| CN104028881B|2013-03-06|2014-03-05|Welding torch|
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