• 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 wire inlet nozzle (27) for fastening in a coupling (29) of a hose package (21), comprising a wire inlet element (32) and a fastening means (31) for a wire core (26) for guiding a welding wire (9) Drawer inlet element (32) and fastening means (31) a base body, and in the wire inlet element (32) has a cavity (56) is formed, in which at least one sealing element (57) with an axial opening (59) for the guidance of the welding wire (9) is. In order to prevent escape of the protective gas in the wire inlet nozzle (27) in the opposite main conveying direction of the welding wire (9), it is provided that the base body forms a first part (54) of the wire inlet element (32), and a second part (55) of the wire inlet element (32 ) Is detachably connectable to the first part (54), and the base body as a parting plane for independent attachment of wire core (26) and sealing element (57) is formed.
    公开号:AT510411A4
    申请号:T519/2011
    申请日:2011-04-12
    公开日:2012-04-15
    发明作者:
    申请人:Fronius Int Gmbh；
    IPC主号:
    专利说明:

    The invention relates to a wire inlet nozzle for attachment in a coupling of a hose package, with a wire inlet element and a fastening means for a wire core for guiding a welding wire, wherein between the wire inlet element and fastening means, a base body is arranged.
    Generally, a wire inlet nozzle is used to insert a welding wire into a hose package connected to a welding torch. Through the hose package also a protective gas, a welding current, control lines and coolant are led to the welding torch. The protective gas must envelop the welding wire at the latest at the weld, so that the required quality of the weld is achieved. Often, the protective gas is already supplied in the area of the wire inlet nozzle of a so-called wire core, in which the welding wire is guided. The shielding gas is supplied under a certain pressure, so that the required amount per unit time can be achieved. Accordingly, the protective gas should flow exclusively in the direction of welding torch. In practice, however, it is essentially unavoidable that the protective gas also exits the wire inlet nozzle and a part of the protective gas flows in the wrong direction.
    The object of the invention is to prevent leakage of the protective gas in the wire inlet nozzle in the opposite main conveying direction of the welding wire.
    The object of the invention is achieved by an abovementioned wire inlet nozzle, in which the main body forms a first part of the wire inlet element, and a second part of the wire inlet element with the first part is detachably connectable, and in the wire inlaufelement a cavity is formed, in which at least one Seal element is arranged with an axial opening for the guidance of the welding wire. The fact that in front of the wire core, which is fastened with the fastening means, the sealing element is arranged, a tight inlet of the sw i.ßdraht s is guaranteed. Thus, it is advantageously prevented that protective gas flows from the fastening means in the wire inlet element. The tightness of the wire inlet nozzle is independent of the wire core used, so that uninsulated wire cores can be used by the meter. Likewise, the consumption of protective gas is reduced and prevents an admixture of ambient air, whereby the external influences on the welding result can be reduced.
    In order to achieve a corresponding tightness, the diameter of the opening of the sealing element is formed substantially equal to the diameter of the welding wire.
    Advantageously, the Hohlraura the wire inlet element is divided into the first part and the second part. As a result, the sealing element can be integrated to save space in the wire inlet nozzle, without changing the outer shape.
    If the welding wire is guided in the center of the cavity and the diameter of the cavity is larger than the outer diameter of the sealing element, so that a free space is created between the sealing element and the cavity, then a floating or floating mounting of the sealing element in the cavity is achieved. As a result, vibrations of the welding wire can be compensated for without the sealing element being subject to increased wear as a result. Thus, the life of the seal member is extended and maintain the tightness over the life constant.
    Advantageously, a compensation element is arranged in the free space between the sealing element and the cavity. Thereby, the Di.chtungselement is held substantially centered in the cavity, with a compensation of the vibrations of the welding wire is fully possible.
    At least one axial groove can be arranged in the axial opening of the sealing element, as a result of which optimum tightness in the axial opening can be achieved with at the same time minimal friction of the welding wire. By the at least one groove so the friction surface of the welding wire is reduced in the axial opening, while creating space for deposits and at the same time sealed the welding wire. Thus, the tightness is substantially independent of the conveying speed or the performance of the conveyor motor. • · · * ·· »· · · · · · · · · · · · · · · 3
    The sealing element is preferably made of elastic plastic, in particular PAI {polyamide-imide) or PET (polyethylene terephthalate).
    The compensating element is preferably made of a plastic which is more elastic with respect to the sealing element, in particular an elastic foam such as z, B. Sponge rubber, made.
    According to a further feature of the invention, the main body of the wire inlet nozzle is formed as a parting plane for independent attachment of wire core and sealing element. As a result, an independent attachment of sealing element and wire core can be achieved and the tightness can be increased, since the transition from the sealing element to the wire core via substantially planar surfaces in the parting plane.
    If a sealing ring is arranged in the region of the parting plane in the direction of the fastening element, a tight fastening of the wire inlet nozzle can be achieved, so that no protective gas can escape in a direction opposite to the direction of conveyance of the welding wire.
    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 is a schematic sectional view of a wire inlet nozzle; FIG.
    Fig. 3 is a schematic plan view of the wire inlet nozzle;
    Fig. 4 is a schematic plan view of a current mandrel a
    Clutch;
    FIG. 5 is a schematic sectional view of the current mandrel according to FIG. 4; FIG.
    FIG. 6 shows a schematic sectional view of the current mandrel according to FIG. 5 along the section line VI-VI; FIG.
    Fig. 7 is a schematic exploded view of a fastening system;
    FIG. 8 shows a schematic sectional view of the fastening system according to FIG. 7 in the assembled state; FIG.
    9 is a schematic sectional view of the fastening system in FIG. 4
    mated, twisted and fixed state; 10 shows a schematic sectional view of a wire inlet nozzle according to the invention in a separate state;
    11 is a schematic exploded view of the wire inlet nozzle according to FIG. 10;
    Fig. 12 is a schematic sectional view of the built-in th Stromdorn th wire entry nozzle according to FIG. 10; and
    Fig. 13 is a schematic front view of a sealing element according to the invention.
    By way of introduction, it is stated that identical parts of the exemplary embodiment are given the same reference numerals. The disclosures contained throughout the specification may be applied to like parts with like reference numerals. Furthermore, individual features from the illustrated embodiments may represent independent solutions according to the invention.
    In Fig. 1, a welding apparatus 1 or a welding system for a variety of processes or processes, such. MIG / MAG, TIG / TJG, electrode, double wire / tandem welding, plasma or soldering, etc. are shown.
    The welding apparatus 1 comprises a power source 2 with a power unit 3 arranged therein, a control device 4 and further components and lines, not shown, such as a switching element, control valves, etc. The control device 4 is connected, for example, to a control valve which is in a supply line for a gas 5, in particular a protective gas, such as CO 2, helium or argon and the like., Between a gas reservoir 6 and a welding torch 7 and a burner is arranged.
    In addition, a wire feed device 8, which is customary for MIG / MAG welding, can also be actuated via the control device 4, wherein a filler material or a welding wire 9 from a supply drum 10 or a wire roll 1 into the region via a supply line the welding torch 7 is supplied. Of course, it is possible that the wire feed device 8, as is known from the prior art, in the welding device 1, in particular in the housing 11 of the power source 2, is integrated and not, as shown in Fig. 1, as an accessory on a trolley 12 is positioned. The wire feeder 8 can also be placed directly on the welder 2, wherein the housing 11 of the power source 2 is formed at the top for receiving the wire feeder 8, and the carriage 12 can be omitted.
    The welding wire 9 or the filler material can be fed from the wire feeder 8 also outside the welding torch 7 to the process site, wherein in the welding torch 7 preferably a non-consumable electrode is arranged, as is customary 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 (not shown) 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).
    For cooling the welding torch 7, this is connected via a cooling device 15 with the interposition of ev. Components, such as a flow monitor, with a F.1 üssigkeitsbehälter, in particular a water tank 16 with a level indicator 17, respectively. When the welding torch 7 'is put into operation, 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 system, 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 current source 2, furthermore 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 the individual components of the welding device 1 are subsequently controlled or corresponding setpoint values for the regulation or control are specified by the latter. When using a corresponding welding torch 7 also adjustment operations can be made via the welding torch 7, to which the welding torch 7 is equipped with a welding torch input and / or output device 19. Preferably, the welding torch Ί is connected via a data bus, in particular a serial data bus, to the welding device 1, in particular the current source 2 or the wire feed device 8. To start the welding process, the welding torch 7 usually has a start switch (not shown), by the actuation of which the arc 13 can be ignited. In order to be protected against the heat radiation emanating from the arc 13, the welding torch 7 can be equipped with a heat shield 20.
    In the illustrated embodiment isl the welding torch 7 is connected via a hose package 21 to the welding machine 1, wherein the Schlauchpakei 21 may be attached via a bend protection 22 at the welding torch 7. In the hose package 21, the individual lines, such as the supply line, lines for the welding wire 9, the gas 5, the cooling circuit, the data transmission, etc., are arranged from the welding device 1 to a welding torch 7, whereas the ground cable is preferably arranged separately. Is connected to the power source 2. The hose package 21 is preferably connected via a coupling device, not shown, to the power source 2 or the wire feeder 8, whereas the individual lines are secured in the hose assembly 21 with a kink protection on or in the welding torch 7.
    In order for a corresponding strain relief of the hose assembly 21 is ensured, the hose assembly 21 may be connected via a strain relief device to the housing 11 of the power source 2 or the wire feeder 8 (not shown).
    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 or MIG / MAG devices or plasma devices. The welding torch 7 can also be designed as an air-cooled welding torch 7 and the cooling device 15 is omitted. The welding device 1 is formed at least by the power source 2, the wire feed device 8 and possibly the cooling device 15, wherein these components can also be arranged in a common housing 11. There may be further parts or components, such as a grinding guard 23 on the wire feeder 8 or an option carrier 24 on a holding device 25 for the gas storage 6, etc. are arranged.
    Furthermore, it is known that the welding wire 9 is guided in a wire core 26 or welding wire core 26 in the hose package 21 to the welding torch 7. The transition of the welding wire 9 of the feed unit of the wire feeder 8 in the wire core 26 via a so-called wire inlet nozzle 27, which has a through opening 28 for the welding wire 9 substantially in the center. The wire inlet nozzle 27 is preferably screwed into a coupling 29 of the hose assembly 21, whereby at the same time the wire core 26 is fixed. For this fixation, however, it is necessary to previously fix a fastening piece to the wire core 26, for example by pressing. Accordingly, this attachment piece increases the diameter of the wire core 26 so that it can no longer slip and is fixed.
    According to an attachment without attachment piece is now provided so that a tool-free attachment of the wire core 26 is possible, wherein the wire core 26 is inserted into the wire inlet nozzle 27 and at the same time, with the attachment of the wire inlet nozzle 27 and the wire core 26 is clamped and fixed in the wire inlet nozzle 27.
    This will be described in detail below with reference to FIGS. 2 to 9. For the simultaneous attachment of wire core 26 and wire inlet nozzle 27, the wire inlet nozzle 27 is specially designed as part of the fastening system. In particular, a portion of the wire inlet nozzle 27 is formed as a fastening means 31, wherein the portion of the wire inlet element 32 and the portion of the stopper 33 are adapted thereto. Both the wire inlet element 32 and the stop 33 are known in principle. Viewed in the conveying direction 34 or main conveying direction of the welding wire 9, the wire inlet element 32, the first portion, the stop 33, the second portion and the fixing means 31 is the third section.
    The fastening means 31 is cylindrical, wherein at that end, which is opposite to the wire inlet element 32, an oval (or elliptical) web 35 is arranged.
    Furthermore, the attachment means 31 is divided by at least one slot 36 into at least two parts. In the case of a slot 36, two jaws 37 are formed, which give the fastening element 31 a corresponding deformability. The slot 36 also extends over the oval web 35, which is also divided into two halves. The Befestigungsm.i ttel 31 is cut through, so to speak, in the middle, so that the two movable jaws 37 arise.
    The length of the main axis 38 of the oval web 35 is greater than the diameter of the cylindrically shaped part of the fastening means 31. Preferably, however, the length of the minor axis 39 is greater than the diameter of the cylindrical part. Accordingly, therefore, the oval web 35 protrudes beyond the cylindrical part of the fastening means 31. The length of the main axis 38 of the oval web 35 is smaller than the diameter .fwdarw.f * a * * I > fr fr fr fr «* ♦ *« «· ·« «fr fr fr ········ fr fr« ········ fr fr «9 knife of the stop 33 of the wire inlet nozzle 27. This allows the fastener 31 to stop 33 be absorbed by the coupling 29 of the hose package 21. The fastening means 31 is not visible in the assembled state, since it is thus arranged in the interior of the coupling 29.
    Three concentric bores are arranged around the center axis 40 of the wire inlet nozzle 27, wherein the first bore 41 is arranged in the wire inlet element 32 and adapted to the diameter of the welding wire 9, the second bore 42 is adapted to the diameter of the wire core 26 and the third bore 43 greater than the diameter of the wire core 26 is formed. The third bore 43 is arranged in the region of the fastening means 31 and the second bore 42 in the region of the stop 33. Through the second bore 42, a pressing region 44 for the wire core 26 is realized. The region of the fastening means 31 about the third bore 43 is designed as a spring region 45. The pressing region 44 is formed essentially in the transition region between the third bore 43 and the second bore 42, that is to say at the end of the spring region 45. Thus, both the pressing region 44 and the spring region 45 are arranged in the fastening element 31. The slot 36 is formed enlarged before and after the pressing region 44, so that a defined pressing region 44 is formed. In this pressing region 44, therefore, the wire core 26 is clamped and fixed by the pressing region 44 is narrowed. The force for clamping the wire core 26 in the pressing region 44 is determined according to the law of levers over the length of the spring portion 45. Since the oval web 35 is arranged at the beginning of the spring region 45 and is formed projecting with respect to the cylindrical region, the jaws 37 are compressed correspondingly via this oval web 3b. The clamping of the wire core 26 in the pressing region 44 can thus be carried out with little effort at the beginning of the spring region 45. In addition, the force can also be influenced by the design of the slots 36-like the magnification before and after the pressing area 44-since this makes it possible to influence the amount of material to be moved.
    To fasten the wire core 26, this is guided through the third bore 43 of the wire inlet nozzle 27 and into the second.
    Bore 42 inserted. Subsequently, the fastening means 31 with the wire core 26 therein can be inserted into a recess 46 of the coupling 29 of the hose pact 21 as another part of the fastening system. Thus, the wire core 26 is in the pressing portion 44 of the wire inlet nozzle 27, which is not yet narrowed and accordingly the wire core 26 is not yet clamped. For example, the recess 46 can be arranged on the face side and centrically on a current mandrel 47 of the coupling 29, so that the wire core 26 can be positioned in the center of the current mandrel 47. The recess 46 is executed in a first portion 48 corresponding to the oval web 35 corresponding to oval. Accordingly, the first portion 48 of the recess 46 has a major axis and a minor axis, which substantially correspond to the major axis 38 and the minor axis 39 of the oval web 35. Thereby, the position for the import of the fastener 31 to the stop 33 can be defined. The first section 48 of the recess 46 has a length or depth which corresponds essentially to the cylindrical region of the fastening means 31 or the length between the stop 33 and the oval web 35. Subsequent to the oval section 48, the recess 46 in the second section 49 is made almost round, corresponding to the height of the oval web 35. Accordingly, the wire inlet nozzle 27 can be rotated as soon as the stop 33 abuts the current pin 47. Advantageously, the end face of the stopper 33 is ribbed or ribbed, so that the user or welder can turn the wire inlet nozzle 27 tool-free with his fingers and thereby fix the wire core 26 and the wire inlet nozzle 27. The stopper 33 is thus configured as a fixing element of the wire inlet nozzle 27.
    A rotation of the wire inlet nozzle 27 is therefore only possible if the oval web 35 is below the oval portion 48 of the recess 46. So that the jaws 37 are compressed during the rotation, the second section 49 is correspondingly oval or elliptical, with only a minimal difference between the length of the main axis 50 and the length of the minor axis 51. The second section 49 is thus formed almost round. The length of the main axis of the first section 48 is equal to the length of
    Main axis 50. When the wire inlet nozzle 27 is twisted, the major axis 38 of the oval land 35 is rotated on the minor axis 51 in the second portion 49 of the recess 46 and the jaws 37 are compressed by the difference in length between the major axis 50 and minor axis 51, thereby reducing the crimping area 44 narrows accordingly and the wire core 26 is clamped.
    The fixing of the wire inlet nozzle 27 is effected in that the oval web 35 formed in the region of the main axis 50 extends at least partially behind the oval section 48 of the recess 46, ie in alignment with the minor axis 51 of the oval section 48 of the recess 46 in the area of the main axis 50 , is twisted. This results from the fact that the second section 49 of the recess 46 is formed almost round. Accordingly, the length is aligned with the minor axis 51 of the oval portion 48 of the recess 46 is greater than the length of the minor axis 51. Thus, the oval web 35 can be rotated behind the oval portion 48 of the recess 46 and the wire inlet nozzle 27 are not pulled from the current mandrel 47 ,
    Escaping to the minor axis 51 of the oval portion of the recess 46 of the almost round second portion 49 of the recess 46 is provided with recesses 52, so that the clamping of the wire core 26 is slightly loosened, and the jaws 37 again slightly apart. As a result, a latching is noticeable to the user and in addition a securing of the fixation of the wire inlet nozzle 27 is achieved, since before rotation of the wire inlet nozzle 27, the jaws 37 must be slightly compressed, so a certain amount of force is required. Thus, inadvertent rotation is substantially eliminated.
    Preferably, the compressed position or the fixed wire core 26 can be characterized by at least two opposing notches 53 in the end face of the stopper 33 and in the current mandrel 47. If the notches 53 of the abutment 33 and the current mandrel 47 are aligned, the wire core 26 is fixed. The aligned notches 53 serve to mark a proper fixation for the user. The notches 53 are thus located on the front
    Side along the main axis 38 of the oval web 35 of the wire inlet nozzle 27 and on the minor axis 51 of the second portion 49 of the recess 46 of the current mandrel 47 (see Figs. 3 and 4). The notches 53 on the wire inlet nozzle 27 are thus normal to the slot 36 and the notches 53 are arranged on the current mandrel 47 in alignment with the slot 36 as long as the wire inlet nozzle 27 has not been twisted.
    Characterized in that the second portion 49 of the recess 46 of the current mandrel 47 is formed almost round, the wire core 26 can be fixed by rotation in any direction. Basically, the wire core 26 is fixed or released by a quarter turn of the wire inlet nozzle 27.
    The fastening means 31 may also have grooves, a thread or the like in the opening for receiving the wire core 26, by means of which the clamping of the wire core 26 can be improved. Preferably, such a modification will be made for softer materials of the wire core 26.
    Thus, the wire core 26 and wire inlet nozzle 27 can be fastened simultaneously without tools and quickly, with the Qrahtseele 26 no additional elements must be attached. Thus, so-called Endlosdrahtsee len can be used in a simple manner, which are shortened to the appropriate length. The wire core 26 can be mounted from any side, so preferably pushed from any page through the hose assembly 21, since no additional elements are attached to the wire core. Also, the wire core 26 is not twisted in the fixation substantially. It is also advantageous that the BefestigungssysLem is independent of the material (steel, plastic, etc.) of the wire core 26.
    According to the invention it is now provided that the stop 33 of the wire inlet nozzle 27 is formed as a rigid body and forms a first part 54 of the wire inlet element 32, and a second part 5b of the wire inlet element 32 with the first part 54 is releasably connectable. In the wire inlet element 32, a cavity 56 is formed, in which a sealing element 57 is arranged. 13
    In detail, the invention is described below with reference to FIGS. 10 to 13.
    The cavity 56 may be divided into both the first part 54 and the second part 55 and is preferably cylindrical. Accordingly, the cavity 56 in the center, that is centered about the central axis 40 of the wire inlet nozzle 27. The diameter of the cavity 56 is greater than the outer diameter of the cylindrically shaped sealing member 57, so that a circular-shaped space around the sealing member 57 is formed. The length of the sealing element 57 is adapted to the length of the cavity 56. Accordingly, the sealing element 57 is minimally shorter than the cavity 56, so that the sealing element 57 in the cavity 56 is both radially and axially movable and thus adapts to a so-called dressage of the welding wire 9. For this purpose, the sealing member 57 made of a material such as PAI (polyamide), PET (polyethylene terephthalate) or similar elastic plastics.
    The movements of the sealing element 57 can be limited by a compensating element 58, which is arranged in the free space and encloses the sealing element 57 accordingly.
    The compensation element 58 allows a so-called floating mounting of the sealing member 57 by the compensating element 58 receives radial movements of the sealing member 57 by being compressed. Thus, the vibrations of the welding wire 9 conveyed by the sealing member 57 are damped, whereby the tightness can be fully maintained. A suitable material for the compensating element 58 is elastic foam, such as sponge rubber.
    The compensating element 58 and the sealing element 57 preferably have the same length.
    The fastening of the sealing element 57 and compensating element 58 takes place via the second part 55 of the wire inlet element 32 by being fastened to the first part 54 of the basic body, for example by a screw connection. In this case, the screw corresponding to a stop 33 - ie to an end face of the body - be screwed so that the cavity 56 has a defined height and the sealing member 57 is movable in the cavity 56.
    When the first part 54 is attached to the second part 55, the cavity divided into both parts 54, 55 is closed. For example, the sealing element 57 and the compensating element 58 can be inserted substantially halfway into the first part 54, and then the second part 55 can be screwed onto the first part 54. Accordingly, the second half of the sealing member 57 and the compensating member 58 is received by the second part 55.
    Subsequently, the wire inlet nozzle 27 can be fixed in the current mandrel 47, wherein the wire core 26 is fixed accordingly. The attachment of sealing element 57 and compensating element 58 is thus independent of the attachment of the wire core 26, since the attachment of the sealing member 57 and compensating element 58 substantially in front of the base body and the attachment of the wire core 26 substantially to the main body. The rigid body therefore has the function of a parting plane.
    In this state, the welding wire 9 is inserted into the wire inlet nozzle 27, this being guided first in the sealing element 57, then through the base body and then through the wire core 26. This also corresponds to the main conveying direction of the welding wire 9. In certain welding processes with short circuits, such as the CMT (cold metal transfer) welding process, the welding wire 9 can also be conveyed back, ie in the opposite direction of the main conveying direction.
    The protective gas 5 required for the welding process is supplied to the wire core 26 in the region of the fastening means 31 and / or after the region of the fastening means 31, wherein leakage of the protective gas 5 in the direction of the wire inlet element 32 is prevented by the solution according to the invention.
    This is possible because an opening 59 of the sealing element 57 is adapted to the diameter of the welding wire 9
    t 15 is such that it is continuously enclosed by the sealing element 57 during delivery.
    In order to reduce the friction in the opening 59 of the sealing element 57, at least one axial groove 60, preferably four grooves 60, is integrated in the sealing element 57. This at least one groove 60 has, for example, a width of 1 mm. Thereby, the friction surface for the welding wire 9 is reduced in the opening 59 and prevents a clamping of the welding wire 9.
    The abrasion resulting from the conveyance of the welding wire 9 can be deposited in the grooves 60 of the sealing element 57, the deposits also sealing accordingly. Optionally, the seal member 57 may be routinely changed with the wire core 26 to prevent the grooves 60 from being completely laid with deposits.
    Another seal can be made in the parting plane between the wire inlet nozzle 27 and the current mandrel 47, so that this transition point is formed dense. For this purpose, the parting plane on the side of the fastening means 31 has a radial recess 61, which is designed to receive a sealing ring 62. This sealing ring 62 is pressed in the attachment of the wire inlet nozzle 27 on an end face of the current mandrel 47, so that a gas leak is prevented.
    权利要求:
    Claims (10)
    [1]
    • • • * * • • * 0 16

    1. Wire inlet nozzle {21) for attachment in a coupling (29) of a hose assembly (21), with a wire inlet element (32) and a fastening means (31) for a wire core (26} for guiding a welding wire (9), wherein between Wire inlet element (32} and fastening means (31) is arranged a base body, characterized in that the base body forms a first part (54) of the wire inlet element (32), and a second part (55} of the wire inlet element (32) with the first Part (54) is releasably connectable, and that in the wire inlet element (32) has a cavity (56) is formed, in which at least one sealing element (57) with an axial opening (59) for guiding the welding wire (9) is arranged.
    [2]
    Second wire inlet nozzle (27) according to claim 1, characterized in that the diameter of the axial opening (59) substantially corresponds to the diameter of the welding wire (9).
    [3]
    3. wire inlet nozzle (27) according to claim 1 or 2, characterized in that the cavity (56) in the wire inlet element (32) on the first part (54) and the second part (55) is divided.
    [4]
    4. wire inlet nozzle (27) according to one of claims 1 to 3, characterized in that the welding wire (9) is guided in the center of the cavity (56), and the diameter of the cavity (56) greater than the outer diameter of the sealing element (57) is formed so that between the sealing element (57) and cavity (56) a clearance is formed.
    [5]
    5. wire inlet nozzle (27) according to claim 4, characterized in that in the free space between the sealing element (57) and hollow space (56) a compensating element (58) is arranged.
    [6]
    6. wire inlet nozzle (27) according to one of claims 1 to 5, characterized in that in the axial opening (59) of the sealing element (57) at least one axial groove (60) is arranged.
    [7]
    7. wire inlet nozzle (27) according to any one of claims 1 to 6, character- ized in that the sealing element (57) of elastic plastic, in particular PAI (polyamide) or PET (Po lyethylenterephthalat) is formed.
    [8]
    8. wire inlet nozzle (27) according to one of claims 5 to 7, characterized in that the compensating element (58) is formed from a relative to the sealing element more elastic plastic, in particular an elastic foam.
    [9]
    9. wire inlet nozzle (27) according to one of claims 1 to 8, characterized in that the base body is designed as a parting plane for independent attachment of wire core (26) and sealing element (57).
    [10]
    10. wire inlet nozzle (27) according to claim 9, characterized in that in the region of the parting plane in the direction of the fastening element (31) a sealing ring (62) is arranged.
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    DE4314099A1|1994-10-20|Arc-welding or arc-cutting torch and electrode holder for it
    AT259341B|1968-01-10|Inert gas welding system with continuously supplied and consumed electrode
    DE1219144B|1966-06-16|Inert gas arc welding system with continuously supplied and consumed electrode
    DE7703542U1|1977-05-12|Structure with several welding torches
    DE7414184U|1977-10-06|Central connection for hose packages of welding guns
    同族专利:
    公开号 | 公开日
    US20130299478A1|2013-11-14|
    CN103547401B|2016-05-18|
    EP2655003A1|2013-10-30|
    US9314868B2|2016-04-19|
    EP2655003B1|2015-01-21|
    CN103547401A|2014-01-29|
    AT510411B1|2012-04-15|
    WO2012139144A1|2012-10-18|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    SE7506917L|1974-06-25|1975-12-29|Inst Savarjavane|CABLE CONNECTOR.|
    DE2617072A1|1976-04-17|1977-11-03|Jun Alexander Binzel|Inert gas welding torch - where seal prevents gas escaping through inlet for consumable welding wire on end of gas tube|
    US4553013A|1984-08-08|1985-11-12|Lenco, Inc.|Gas seal for MIG gun systems|
    AT411880B|1998-01-13|2004-07-26|Fronius Int Gmbh|CONTROL DEVICE FOR A WELDING MACHINE|
    AT412765B|2003-07-03|2005-07-25|Fronius Int Gmbh|TORCH|
    AT413660B|2004-01-27|2006-04-15|Fronius Int Gmbh|DEVICE AND METHOD FOR TRANSPORTING A WIRE|US20140110386A1|2012-10-23|2014-04-24|Robert J. Centner|Compressible end-fitting for welding gun liner|
    CN105555006B|2016-02-16|2018-03-13|衢州迪升工业设计有限公司|Utilize the electrode of fuse striking|
    US20210006027A1|2018-03-07|2021-01-07|Relibond Aps|Power cable end treatment device|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA519/2011A|AT510411B1|2011-04-12|2011-04-12|wire inlet|ATA519/2011A| AT510411B1|2011-04-12|2011-04-12|wire inlet|
    EP12715307.0A| EP2655003B1|2011-04-12|2012-03-28|Wire insertion piece|
    US13/978,760| US9314868B2|2011-04-12|2012-03-28|Wire inlet nozzle|
    PCT/AT2012/000081| WO2012139144A1|2011-04-12|2012-03-28|Wire inlet nozzle|
    CN201280006950.4A| CN103547401B|2011-04-12|2012-03-28|Welding wire inlet nozzle|
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