Welding gun nozzle structure and welding gun

Abstract

The utility model provides a welding gun nozzle structure and a welding gun. The welding gun nozzle structure comprises a gun barrel, a welding nozzle and a clamping assembly. A first through groove is formed in the gun barrel. The welding nozzle is inserted into the end, close to the first through groove, of the gun barrel. The clamping assembly comprises a first limiting piece and a movable piece, the first limiting piece is slidably installed in the first through groove, the gun barrel is sleeved with the movable piece, and the movable piece can slide relative to the gun barrel. And when the movable part slides away from the first through groove, the welding nozzle can be inserted into or separated from the gun barrel. After the welding gun nozzle is inserted into the gun barrel, when the movable part slides to the position for shielding the first through groove, the first limiting part can be pushed to limit movement of the welding nozzle. According to the welding gun nozzle structure, the welding nozzle does not need to rotate in the process that the welding nozzle is installed on the gun barrel. The situation that workers need to repeatedly adjust the insertion angle of the gun barrel when assembling the gun barrel is avoided, the installation difficulty of the welding gun nozzle and the gun barrel is lowered, and the installation efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of welding torch, specifically, relate to a welding torch nozzle structure and welding torch. BACKGROUND

[0002] Welding torch as the common tool in all kinds of equipment processing production, nozzle part usually consists of welding copper nozzle and gun barrel.

[0003] In the related art, when installing the nozzle part, the welding copper nozzle is locked with the gun barrel through thread cooperation, and the gun barrel is installed on the gun body through thread cooperation of locking ring, fixing clamp and other components. But the gun barrel is usually cylindrical, and the gun barrel will also rotate in the process of installing through thread cooperation, and the welding copper nozzle will also deviate with the rotation of the gun barrel, so that the wire feeding pipe on the gun body cannot be effectively aligned with the welding copper nozzle, affecting the wire feeding effect. Therefore, the worker needs to repeatedly adjust the angle of the gun barrel when inserting, which has high installation difficulty and low installation efficiency. SUMMARY

[0004] In order to overcome the defects in the related art, the utility model provides a welding torch nozzle structure and welding torch.

[0005] The embodiment of the utility model is realized as follows:

[0006] A welding torch nozzle structure, comprising a gun barrel, a welding torch nozzle and a clamping assembly. A first through slot is formed in the gun barrel. The welding torch nozzle is inserted into the end of the gun barrel close to the first through slot. The clamping assembly comprises a first limiting piece and a movable piece. The first limiting piece is slidingly installed in the first through slot. The movable piece is installed on the outside of the gun barrel, and the movable piece can slide relative to the gun barrel. When the movable piece slides away from the first through slot, the welding torch nozzle can be inserted into or separated from the gun barrel. After the welding torch nozzle is inserted into the gun barrel, when the movable piece slides to the position of shielding the first through slot, the movable piece can push the first limiting piece, so that the first limiting piece abuts against the welding torch nozzle to limit the movement of the welding torch nozzle.

[0007] In some embodiments, for example, a first limiting slot is formed in the welding torch nozzle, the first limiting slot is correspondingly arranged with the first through slot, and the first limiting piece can abut in the first limiting slot.

[0008] In some embodiments, for example, the first limiting slot is arranged on the outer surface of the welding torch nozzle, and the first limiting slot is arranged along the circumference of the welding torch nozzle.

[0009] In some embodiments, the clamping assembly further comprises a second limiting member, and a second through groove is formed in the gun rod, and the second limiting member is installed in the second through groove.

[0010] In some embodiments, the second limiting member comprises an elastic piece, and the elastic piece is fixedly installed in the second limiting groove.

[0011] In some embodiments, the gun rod is uniformly provided with at least two second through grooves, and a plurality of second limiting members are correspondingly arranged, and each of the plurality of second limiting members can abut against the welding gun nozzle.

[0012] In some embodiments, the gun rod is provided with a step, and an elastic element is arranged between the movable member and the step, and the elastic element can push the movable member away from the step, so that the movable member blocks the first through groove and the second through groove.

[0013] In some embodiments, the welding gun nozzle is provided with a stop portion, and the first through groove and the second through groove are arranged between the step and the stop portion.

[0014] A welding gun comprises a gun body and the welding gun nozzle structure in any one of the above embodiments.

[0015] In some embodiments, the clamping assembly further comprises a base, the clamping element is inserted into the base, and the locking element is sleeved on the base.

[0016] The embodiment of the utility model has the advantages of:

[0017] The welding gun nozzle structure provided by the utility model is characterized in that when being installed, the movable piece is slid to be far away from the first limiting piece, the first limiting piece can freely move in the first through slot, at this time, the welding gun nozzle is inserted on the gun rod, after being inserted to a proper position, the movable piece is slid, the movable piece is slid to the position of shielding the first through slot, the movable piece is abutted on the first limiting piece, and the first limiting piece is abutted on the welding gun nozzle, the welding gun nozzle is fixed, and the welding gun nozzle does not need to rotate, and can be relatively fixed with the gun rod.

[0018] The welding gun nozzle structure is characterized in that during installation on the gun rod, the welding gun nozzle does not need to rotate, that is, the welding gun nozzle can be directly inserted on the gun rod after being aligned with the wire feeding assembly on the gun body, the situation that the worker needs to repeatedly adjust the insertion angle of the gun rod during assembly of the gun rod is avoided, the installation difficulty of the welding gun nozzle and the gun rod is reduced, and the installation efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will be briefly introduced the drawings needed to be used in the embodiments, it should be understood, the following drawings only show some embodiments of the utility model, therefore should not be regarded as the limitation to the range, for the ordinary skilled person in the art, under the premise of not paying the creative labor, still can obtain other related drawings according to these drawings.

[0020] Figure 1 It is a perspective view of the welding gun nozzle structure of the utility model embodiment;

[0021] Figure 2 It is a perspective view of the welding gun nozzle structure of the utility model embodiment; Figure 1 It is a sectional view of the welding gun nozzle structure;

[0022] Figure 3 It is a sectional view of the welding gun nozzle structure; Figure 2 It is a local enlarged view of A in the welding gun nozzle structure;

[0023] Figure 4 It is a perspective view of the welding gun nozzle structure of the utility model embodiment from another angle;

[0024] Figure 5 It is a local enlarged view of B in the welding gun nozzle structure; Figure 4

[0025] Figure 6 It is a perspective view of the welding gun nozzle of the utility model embodiment;

[0026] Figure 7 It is a perspective view of the gun rod of the utility model embodiment.

[0027] ​Icon:

[0028] 100 - gun barrel; 110 - step; 120 - flat mouth; 130 - first through slot; 140 - second through slot; 200 - torch nozzle; 210 - stop; 220 - first limit slot; 300 - clamping assembly; 310 - first limit; 320 - movable element; 321 - elastic element; 330 - second limit; 400 - wire feeding assembly; 500 - connecting assembly; 510 - clamping element; 511 - clamping plate; 520 - locking element. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative labor are within the scope of protection of the present application.

[0031] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0032] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the product of the present application is used, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0033] In addition, the terms "horizontal", "vertical" and the like do not mean that the components must be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0034] In the description of the utility model, it also needs to be explained that, unless there is definite stipulation and limitation, the terms "arrange", "install", "connect" and "connect" should be understood in a broad sense, for example, it can be fixed connection, or it can be detachable connection, or it can be integrally connected, it can be mechanical connection, or it can be electrical connection, it can be directly connected, or it can be indirectly connected through intermediate medium, it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0035] Embodiment 1

[0036] The embodiment provides a welding gun nozzle structure to solve the problems of repeated adjustment, great installation difficulty and low installation efficiency of the gun barrel and the nozzle installation process of the welding gun in the prior art.

[0037] Please refer to Figure 1 , Figure 4 , Figure 5 A kind of welding gun nozzle structure, including gun barrel 100, welding gun nozzle 200 and clamping assembly 300. First through slot 130 is set up on gun barrel 100. Welding gun nozzle 200 is inserted on the end of gun barrel 100 close to first through slot 130. Clamping assembly 300 includes first limiting piece 310 and movable piece 320, first limiting piece 310 is slidably installed in first through slot 130, movable piece 320 is installed on the outside of gun barrel 100, and movable piece 320 can slide relative to gun barrel 100. When movable piece 320 slides away from first through slot 130, welding gun nozzle 200 can be inserted or separated from gun barrel 100. After welding gun nozzle is inserted on gun barrel 100, movable piece 320 slides to the position of shielding first through slot 130, movable piece 320 can push first limiting piece 310, so that first limiting piece 310 abuts on welding gun nozzle 200 to limit the movement of welding gun nozzle 200.

[0038] Specifically, when using the welding gun nozzle structure of the embodiment, after sliding movable piece 320, movable piece 320 is away from first through slot 130, welding gun nozzle 200 is rotated to the appropriate angle, and then it is aligned with gun barrel 100 and inserted on gun barrel 100. After insertion, movable piece 320 is slid, movable piece 320 shields first through slot 130, that is, movable piece 320 abuts on first limiting piece 310, and first limiting piece 310 abuts on welding gun nozzle 200, so that gun barrel 100 is fixed relative to first limiting piece 310.

[0039] In the installation process of the welding torch nozzle structure of the embodiment, the relative fixation of the welding torch nozzle 200 and the torch rod 100 can be completed by directly clamping the clamping assembly 300, and the fixation process does not need to be rotated, that is, after installation, the torch rod 100 and the welding torch nozzle 200 can be directly at a suitable angle for subsequent use or installation. The installation process is simple, fast and efficient.

[0040] It can be understood that the first limiting piece 310 can be provided in any structure as long as the torch rod 100 and the welding torch nozzle 200 can be clamped. For example, in the embodiment, the first limiting piece 310 is provided as a steel ball. When the movable piece 320 is not abutted on the steel ball, the steel ball is at a position away from the welding torch nozzle 200 in the first through slot 130, so that the welding torch nozzle 200 can be normally inserted into the torch rod 100. After the welding torch nozzle 200 is inserted, the movable piece 320 extrudes the steel ball, and the steel ball is extruded on the welding torch nozzle 200 to fix the welding torch nozzle 200.

[0041] It should be noted that the end of the first through slot 130 has a diameter smaller than that of the steel ball, so that the steel ball is prevented from being separated from the first through slot 130 without external force, and the reliability of the embodiment is improved. The end of the welding torch nozzle 200 towards the torch rod 100 is provided with a guide surface, and the guide surface is inclined. In this way, during the insertion of the welding torch nozzle 200, the guide surface of the welding torch nozzle 200 will first contact the steel ball, so that the steel ball is pushed by the guide surface, and the situation that the welding torch nozzle 200 cannot be normally inserted due to the limitation of the steel ball is avoided.

[0042] In some embodiments, for example, as shown in Figures 3 to 5 the welding torch nozzle 200 is provided with a first limiting slot 220, the first limiting slot 220 is correspondingly provided with the first through slot 130, and the first limiting piece 310 can be abutted in the first limiting slot 220. After the welding torch nozzle 200 is inserted, the steel ball is located in the first through slot 130, and the end of the first through slot 130 towards the welding torch nozzle 200 is extended and clamped in the first limiting slot 220. In this way, since one side of the steel ball is limited by the movable piece 320 and cannot move, and the other side is limited by the first limiting slot 220 and cannot move, the steel ball is completely limited, and the fixation of the torch rod 100 and the welding torch nozzle 200 is completed.

[0043] In some embodiments, for example, as shown in Figure 6 the first limiting slot 220 is provided on the outer surface of the welding torch nozzle 200, and the first limiting slot 220 is provided in extension along the circumference of the welding torch nozzle 200. The area of the first limiting slot 220 is enlarged, so that the steel ball can be more easily clamped in the first limiting slot 220 during the installation process, the installation difficulty of the embodiment is further reduced, and the installation efficiency of the embodiment is improved.

[0044] It should be noted that, since the first limiting groove 220 is arranged along the circumference of the welding gun nozzle 200, that is, the first limiting groove 220 is an arc-shaped groove, after the welding gun nozzle 200 is inserted into the gun rod 100, due to various factors such as installation process and operator, the relative position of the welding gun nozzle 200 and the gun rod 100 is not suitable, and the welding gun nozzle 200 can also be directly kept in the installed state and is slightly rotated, as long as the steel ball does not come out of the first limiting groove 220 during the rotation.

[0045] In some embodiments, as shown in Figure 6 The welding gun nozzle 200 is provided with at least two first limiting grooves 220, and the first limiting member 310 and the first through groove 130 are also provided with at least two corresponding first limiting grooves 220. The plurality of first limiting members 310 can further improve the fixing effect of the steel ball on the welding gun nozzle 200.

[0046] In some embodiments, as shown in Figures 5 to 7 The clamping assembly 300 further includes a second limiting member 330, and the gun rod 100 is provided with a second through groove 140, and the second limiting member 330 is installed in the second through groove 140. The second limiting member 330 includes an elastic portion which can abut against the welding gun nozzle 200. By abutting against the welding gun nozzle 200 through the second limiting portion, the welding gun nozzle 200 is further limited, and specifically, after the welding gun nozzle 200 is installed on the gun rod 100, only the first limiting member 310, that is, the steel ball, limits the welding gun nozzle 200, and cannot guarantee that the welding gun nozzle 200 is completely fixed relative to the gun rod 100, and the welding gun nozzle 200 can also have a slight shaking with the gun rod 100. The second limiting member 330 can cooperate with the first limiting member 310 to limit the welding gun nozzle 200, so that the welding gun nozzle 200 does not shake after being installed on the gun rod 100, and the reliability of the installation is improved.

[0047] It can be understood that, after the welding gun nozzle 200 is fixed on the gun rod 100 by the first limiting member 310, the first limiting member 310 mainly limits the radial position of the welding gun nozzle 200, and if it is necessary to adjust the relative angle of the welding gun nozzle 200 and the gun rod 100, the welding gun nozzle 200 can also be slightly rotated relative to the gun rod 100, as long as the steel ball does not come out of the first limiting groove 220 during the rotation. The second limiting member 330 can further limit the radial and circumferential positions of the welding gun nozzle 200, so that the welding gun nozzle 200 and the gun rod 100 are completely fixed, and the safety and reliability of the embodiment in use are guaranteed.

[0048] In some embodiments, as shown in Figures 5 to 7As shown, the second limiting member 330 includes an elastic sheet fixedly installed in the second limiting groove. An elastic portion is arranged at the center of the elastic sheet, and the elastic portion is arranged protruding towards the welding torch nozzle 200. The protruding portion of the elastic sheet can abut and press against the outer surface of the welding torch nozzle 200, and the elastic sheet cooperates with the steel ball to completely limit the welding torch nozzle 200.

[0049] It should be noted that the protruding portion of the elastic sheet can be directed towards the welding torch nozzle 200 or away from the welding torch nozzle 200, that is, after the welding torch nozzle 200 is inserted into the torch barrel 100, it is not directly fixed by the elastic sheet and the steel ball. After the welding torch nozzle 200 is inserted into the torch barrel 100, the movable member 320 is moved to the position of the first through groove 130 or the second through groove 140, and the welding torch nozzle 200 is only fixed by the elastic sheet. At this time, the welding torch nozzle 200 can be adjusted by a small amount, and after being adjusted to the appropriate position, the movable member 320 is moved to the position of the first through groove 130 and the second through groove 140, so that the steel ball and the elastic sheet are cooperated to fix the welding torch nozzle 200. At the same time, the movable member 320 can also protect the steel ball and the elastic sheet, which are smaller parts.

[0050] In some embodiments, for example, Figures 5 to 7 As shown, at least two second through grooves 140 are uniformly arranged on the torch barrel 100, and a plurality of second limiting members 330 are correspondingly arranged, and the plurality of second limiting members 330 can abut on the welding torch nozzle 200. By arranging a plurality of second limiting members 330 and cooperating with a plurality of first limiting members 310, it is ensured that the welding torch nozzle 200 can be completely fixed by the clamping assembly 300 after being inserted into the torch barrel 100, and the welding torch nozzle 200 cannot relatively displace with the torch barrel 100.

[0051] In some embodiments, for example, Figure 4 、 Figure 5 、 Figure 7As shown, the gun barrel 100 is provided with a step 110, and the elastic element 321 is arranged between the movable element 320 and the step 110. The elastic element 321 can push the movable element 320 away from the step 110, so that the movable element 320 blocks the first through slot 130 and the second through slot 140. When installing the welding gun nozzle 200, first, an external force is applied to the movable element 320 by an operator or other external structure, the elastic element 321 is compressed by the movable element 320, the movable element 320 is away from the first through slot 130 and the second through slot 140, that is, the movable element 320 does not limit the first limiting element 310, at this time, the welding gun nozzle 200 can be inserted into the gun barrel 100. After the insertion is completed, the movable element 320 is released, the elastic element 321 is released, the movable element 320 is extended to block the first through slot 130 and the second through slot 140, and the first limiting element 310 is limited, so that the welding gun nozzle 200 is completely fixed, and the installation difficulty of the embodiment is further reduced, and the installation process is simplified.

[0052] The elastic element 321 can be arranged in any structure according to actual conditions. For example, in the embodiment, the elastic element 321 is arranged as a spring, one end of the spring abuts against the step 110 of the gun barrel 100, and the other end of the spring abuts against the movable element 320.

[0053] In some embodiments, for example, Figure 4 , Figure 5 , Figure 7 As shown, the welding gun nozzle 200 is provided with a stop portion 210, and the first through slot 130 and the second through slot 140 are arranged between the step 110 and the stop portion 210. The elastic element 321 can make the movable element 320 abut against the stop portion 210. Through the stop portion 210, the movement range of the movable element 320 can be limited, so that the movable element 320 can be abutted against the stop portion 210 and stopped, and the movable element 320 can block the first through slot 130 and the second through slot 140, so that the structure design of the embodiment is reasonable.

[0054] The stop portion 210 is arranged as a clamping spring sheet, the clamping spring sheet is arranged on the welding gun nozzle 200 and faces the gun barrel 100, and the first through slot 130 and the second through slot 140 are arranged between the clamping spring sheet and the step 110. Through the clamping spring sheet as the stop portion 210, the production cost can be reduced, the machining process of the stop portion 210 is simple and fast, and the practicality is strong.

[0055] Embodiment 2

[0056] Please refer to Figures 1 to 3The embodiment also provides a welding gun comprising a gun body and the welding gun nozzle structure in any of the above embodiments. The gun body is provided with a mounting hole, and the gun rod 100 is inserted into the mounting hole. The connecting assembly 500 comprises a clamping element 510 and a locking element 520. The clamping element 510 is arranged in the mounting hole, and the locking element 520 is arranged outside the clamping element 510 and can abut against the clamping element 510. When the gun rod 100 is inserted into the clamping element 510 and the locking element 520 abuts against the clamping element 510, the clamping element 510 can clamp and fix the gun rod 100.

[0057] Specifically, during installation, the clamping element 510 is arranged in the mounting hole of the gun body, and the gun rod 100 is inserted into the clamping element 510. After being inserted to a proper position, the clamping element 510 is tightened by the locking element 520, so that the clamping element 510 can tighten the gun rod 100, and the relative fixation between the gun rod 100 and the gun body is completed.

[0058] The relative fixation between the gun rod 100 and the gun body can be completed by the locking element 520 and the clamping element 510, and the gun rod 100 does not need to be rotated during the fixation process. The welding gun nozzle 200 can be installed on the gun rod 100 without rotation, and the gun rod 100 can be installed on the gun body without rotation, that is, during the installation process of the embodiment, after the installation is completed, the position of the welding gun nozzle 200 and the position of the wire feeding assembly 400 can normally cooperate, and the situation that the operator needs to repeatedly adjust does not occur, the installation difficulty of the embodiment is reduced, and the installation efficiency is improved.

[0059] In some embodiments, as shown in Figures 1 to 3 The connecting assembly 500 further comprises a base, the clamping element 510 is inserted into the base, and the locking element 520 is arranged outside the base. The base and the locking element 520 are both provided with threads, and the base and the locking element 520 are fixedly connected through the threads. The clamping element 510 comprises a clamping plate 511, and the locking element 520 comprises a pushing surface. When the locking element 520 is threadedly connected with the base, the pushing surface can push the clamping plate 511, so that the clamping plate 511 abuts against the gun rod 100 to fix the gun rod 100.

[0060] In detail, the gun rod 100 is arranged on the base, the clamping element 510 is arranged between the gun rod 100 and the base, and the clamping element 510 is fixedly connected with the base. During the installation of the gun rod 100 on the gun body, only the locking element 520 needs to be rotated. Through the thread cooperation between the locking element 520 and the base, the pushing surface pushes the clamping plate 511, and then the clamping plate 511 clamps and fixes the gun rod 100, which is simple and convenient to operate. The clamping plate 511 is circumferentially and uniformly arranged with a plurality of clamping plates 511 on the clamping element 510, so as to ensure the stability and reliability of clamping.

[0061] In some embodiments, the gun barrel 100 is provided with a flat mouth portion 120, and the corresponding welding torch nozzle 200 is also provided with a flat mouth portion 120. Through the flat mouth portion 120, the gun barrel 100 and the welding torch nozzle 200 are positioned when installed, that is, as long as the flat mouth portion 120 of the gun barrel 100 corresponds to the flat mouth portion 120 of the welding torch nozzle 200, and the flat mouth portion 120 of the welding torch nozzle 200 corresponds to the wire feeding assembly 400, the position of the embodiment after installation can be ensured to be appropriate, and the installation difficulty of the embodiment is reduced.

[0062] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can be variously changed and modified. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A welding torch nozzle structure, characterized in that, include: Gun barrel (100), on which a first through groove (130) is provided; A welding torch nozzle (200) is inserted into the end of the torch rod (100) near the first through slot (130); The snap-fit ​​assembly (300) includes a first limiting member (310) and a movable member (320). The first limiting member (310) is slidably installed in the first through groove (130), and the movable member (320) is sleeved and installed on the outside of the gun barrel (100), and the movable member (320) can slide relative to the gun barrel (100). When the movable part (320) slides away from the first through groove (130), the welding torch nozzle (200) can be inserted into or disengaged from the torch rod (100). After the welding torch nozzle (200) is inserted into the torch rod (100), when the movable member (320) slides to the position that blocks the first through groove (130), the movable member (320) can push the first limiting member (310) so that the first limiting member (310) abuts against the welding torch nozzle (200) to restrict the movement of the welding torch nozzle (200); The welding torch nozzle (200) is provided with a first limiting groove (220), the first limiting groove (220) is correspondingly provided with the first through groove (130), and the first limiting member (310) can abut against the first limiting groove (220); The snap-fit ​​assembly (300) further includes a second limiting member (330), and a second through groove (140) is provided on the gun barrel (100), and the second limiting member (330) is installed in the second through groove (140); The second limiting member (330) includes an elastic portion that can abut against the welding torch nozzle (200); A step (110) is provided on the gun barrel (100), and an elastic element (321) is provided between the movable member (320) and the step (110). The elastic element (321) can push the movable member (320) away from the step (110) so that the movable member (320) blocks the first through groove (130) and the second through groove (140).

2. The welding torch nozzle structure according to claim 1, characterized in that, The first limiting groove (220) is disposed on the outer surface of the welding torch nozzle (200), and the first limiting groove (220) extends circumferentially along the welding torch nozzle (200).

3. The welding torch nozzle structure according to claim 1, characterized in that, The second limiting member (330) includes a spring piece, which is fixedly installed in the second limiting groove; The elastic part is disposed at the center of the spring sheet, and the elastic part protrudes in the direction close to the welding torch nozzle (200).

4. The welding torch nozzle structure according to claim 3, characterized in that, At least two second through slots (140) are evenly distributed on the gun barrel (100), and multiple second limiting members (330) are correspondingly provided, and multiple second limiting members (330) can abut against the welding gun nozzle (200).

5. The welding torch nozzle structure according to claim 1, characterized in that, The welding torch nozzle (200) is provided with a stop (210), and the first through groove (130) and the second through groove (140) are both provided between the step (110) and the stop (210); The elastic element (321) enables the movable part (320) to abut against the stop (210).

6. A welding torch, characterized in that, Includes the gun body and the welding gun nozzle structure as described in any one of claims 1 to 5; The gun body has a mounting hole, and the gun barrel (100) is inserted into the mounting hole; A connecting assembly (500) includes a clamping element (510) and a locking element (520); the clamping element (510) is disposed in the mounting hole, and the locking element (520) is sleeved on the outside of the clamping element (510) and can abut against the clamping element (510); The gun barrel (100) is inserted into the clamping element (510). When the locking element (520) abuts against the clamping element (510), the clamping element (510) can clamp and fix the gun barrel (100).

7. The welding torch according to claim 6, characterized in that, The connecting assembly (500) also includes a base, the clamping element (510) is inserted into the base, and the locking element (520) is sleeved on the base; both the base and the locking element (520) are provided with threads, and the base and the locking element (520) are fixedly connected through the threaded portion. The clamping element (510) includes a clamping plate (511), and the locking element (520) includes a pushing surface. When the locking element (520) is threadedly connected to the base, the pushing surface can push the clamping plate (511) so that the clamping plate (511) abuts against the gun barrel (100) to fix the gun barrel (100).

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