Gun head drawing structure and welding gun

Abstract

This utility model discloses a gun head pulling structure and a welding gun. The gun head pulling structure includes: a nozzle, a support assembly, and a second connecting member. A first connecting member is sleeved around the nozzle and has a first limiting part. The support assembly is movably connected to the first connecting member. The second connecting member has a second limiting part and is threadedly connected to the first connecting member. The second connecting member can drive the first limiting part to move towards the second limiting part to press against the support assembly. The first and second limiting parts work together to press against the support assembly. When the support assembly is rotated, it can prevent relative movement between the nozzle and the support assembly on the axis, thereby avoiding displacement of the gun head support position and improving the accuracy of stud spot welding. At the same time, the first and second limiting parts can dampen the rotational movement of the support assembly. When rotating the support assembly, a certain force is required to overcome this resistance, preventing the support assembly from rotating arbitrarily due to its own weight or slight contact.

Description

Technical Field

[0001] This utility model relates to the field of welding technology, and in particular to a gun head pulling structure and a welding gun having a gun head pulling structure. Background Technology

[0002] Automotive sheet metal repair, depending on the body material, requires the use of a spot welding machine with a spot welding gun for repairing steel vehicles, and a stud-planting machine with a stud-planting gun for repairing aluminum vehicles. In related technologies, the stud-planting spot welding gun head includes a support component and the gun head itself. The support component can rotate and adjust its position relative to the gun head. During welding, the support component rests against the workpiece to provide support. The support component is threadedly connected to the welding head. When the support component rotates and adjusts its position, it moves along the axis of the gun head. This misalignment of the gun head's support position can cause a shift in the stud placement or angle, affecting the accuracy and stability of the stud-planting spot welding operation. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a gun head pulling structure, which has the advantages of convenient adjustment of the support components and stable support.

[0004] This utility model also proposes a welding torch having the above-mentioned torch head drawing structure.

[0005] The gun head pulling structure according to this utility model includes: The nozzle is surrounded by a first connecting member, which has a first limiting part. Support component, movably connected to the first connector; The second connector is provided with a second limiting part. The second connector is threadedly connected to the first connector and can drive the first limiting part to move toward one side of the second limiting part to press against the support component.

[0006] The gun head pulling structure described in this utility model has at least the following beneficial effects: the first limiting part and the second limiting part work together to press against the support assembly. When the support assembly is rotated, relative movement between the nozzle and the support assembly on the axis can be prevented, thereby avoiding displacement of the gun head support position and improving the accuracy of the nail spot welding. At the same time, the first limiting part and the second limiting part can dampen the rotational movement of the support assembly. When rotating the support assembly, a certain force is required to overcome this resistance, preventing the support assembly from rotating arbitrarily due to its own weight or slight contact.

[0007] According to some embodiments of the present invention, the gun head pulling structure includes a third connector and a support component. The third connector is sleeved around the first connector and has a mounting groove extending toward one side of the first connector. The support component is slidably disposed in the mounting groove in the extending direction of the mounting groove.

[0008] According to some embodiments of the present invention, the gun head pulling structure includes a support column and a support base. The support column is installed in the mounting groove, and the support base is detachably connected to the support column.

[0009] According to some embodiments of the present invention, the gun head pulling structure has an installation hole inside the support column, and the third connector passes through the installation groove and the installation hole via a connecting component to fix the third connector to the support column.

[0010] According to some embodiments of the present invention, the gun head pulling structure has an elastic element inside the mounting hole, which abuts against the connecting component to prevent the connecting component from loosening.

[0011] According to some embodiments of the present invention, the gun head pulling structure includes an insert in the mounting hole, and the connecting component is threadedly connected to the insert.

[0012] According to some embodiments of the present invention, the gun head pulling structure has a plurality of cutting slits on the side of the first connector facing the second connector. The cutting slits divide one end of the first connector into a plurality of petal-shaped portions, and the second connector is screwed to the petal-shaped portions.

[0013] According to some embodiments of the present invention, the gun head pulling structure has an arc-shaped surface on the side of the support component facing the gun nozzle.

[0014] According to some embodiments of the present invention, the gun head pulling structure has anti-slip textures on the outer peripheral walls of the first limiting part and the second limiting part.

[0015] The welding torch according to this utility model includes the torch head pulling structure described in this utility model.

[0016] The welding torch according to this utility model has at least the following beneficial effects: The support assembly cooperates with the first and second limiting parts, adjusting the support assembly while preventing axial relative movement between the nozzle and the support assembly, avoiding nozzle head support offset, improving the accuracy of stud welding, and reducing welding defects. Simultaneously, the limiting parts dampen the rotation of the support assembly, requiring force to overcome the resistance and preventing it from rotating arbitrarily due to gravity or light touch, ensuring operational stability and enhancing operational controllability. The support component slides with the third connecting piece, and the support base and support column are detachable, allowing for flexible adaptation to different scenarios and workpieces, enhancing versatility.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a cross-sectional view of the gun head drawing structure according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the gun head pulling structure according to an embodiment of the present utility model; Figure 3 for Figure 2 An exploded view of the gun head pulling structure is shown.

[0019] Explanation of icon numbers: Gun muzzle 100; First connector 200; first limiting part 210; cutting slit 220; petal-shaped part 230; Support assembly 300; third connector 310; mounting groove 311; support component 320; support column 321; support base 322; mounting hole 323; elastic element 324; insert 325; connecting component 326; Second connector 400; second limiting part 410. Detailed Implementation

[0020] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0021] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0023] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0024] In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0025] The welding torch is a core tool in welding operations. Its function is to melt the materials being welded by providing energy, assisting in the formation of a weld joint, and potentially working with filler material to achieve material bonding, ultimately ensuring the strength, sealing, and other properties of the welded area. The torch head support is an auxiliary device used in conjunction with the welding torch, its main function being to support and position the torch head. For example, during welding operations, the torch head support helps maintain stability, allowing the torch head to accurately reach the welding position. In related technologies, the support is threadedly connected to the welding head. When the support assembly rotates to adjust its position, the support moves along the axis of the torch head. This misalignment of the torch head's support position can lead to displacement of the stud placement position or angle, affecting the accuracy and stability of the stud spot welding operation.

[0026] Therefore, such as Figures 1 to 3As shown, the gun head pulling structure proposed in this utility model includes: a nozzle 100, a support assembly 300, and a second connecting member 400. A first connecting member 200 is sleeved around the nozzle 100, and the first connecting member 200 is provided with a first limiting part 210. The support assembly 300 is movably connected to the first connecting member 200, and the second connecting member 400 is provided with a second limiting part 410. The nozzle 100, the first connecting member 200, and the second connecting member 400 are all columnar structures. The second connecting member 400 is threadedly connected to the first connecting member 200, enabling the first limiting part 210 to move towards the side of the second limiting part 410 to press against the support assembly 300. The first limiting part 210 and the second limiting part 410 can dampen the rotational movement of the support assembly 300. When rotating the support assembly 300, a certain force is required to overcome this resistance, preventing the support assembly 300 from rotating arbitrarily due to its own weight or slight contact. The first limiting part 210 and the second limiting part 410 cooperate to adjust the support component 300 while preventing the nozzle 100 and the support component 300 from moving axially relative to each other, avoiding nozzle support offset and improving the accuracy of nail welding.

[0027] In some embodiments of this utility model, such as Figures 1 to 3 As shown, the support assembly 300 includes a third connector 310 and a support component 320. The third connector 310 is arranged perpendicular to the axis of the nozzle 100 and is sleeved around the periphery of the first connector 200. The third connector 310 is provided with a mounting groove 311, which extends toward one side of the first connector 200. The support component 320 is slidably disposed in the mounting groove 311 along the extending direction of the mounting groove 311. When it is necessary to perform stud spot welding on workpieces of different sizes, the operator can push the support component 320 to slide within the mounting groove 311, thereby changing the distance between the support component 320 and the first connector 200, and thus adjusting the distance between the support point and the nozzle 100, ensuring that the support assembly 300 can always provide stable and effective support for the workpiece.

[0028] In some embodiments of this utility model, such as Figure 3 As shown, the support component 320 includes a support column 321 and a support base 322. The axis of the support column 321 is parallel to the axis of the nozzle 100. The support column 321 is installed in the mounting groove 311, and the support base 322 is perpendicular to the support column 321. The support base 322 and the support column 321 are detachably connected. The support base 322 is provided with a connecting groove, and the support column 321 is embedded in the connecting groove and fixed by fasteners. The support base 322 and the support column 321 are detachable, which can flexibly adapt to different scenarios and workpieces, enhancing versatility.

[0029] In some embodiments of this utility model, such as Figures 1 to 3As shown, the support column 321 has a mounting hole 323 inside, which extends along the axis of the support column 321. The third connector 310 passes through the mounting groove 311 and the mounting hole 323 via the connecting component 326 to fix the third connector 310 to the support column 321. The connecting component 326 is threadedly connected to the support component 320. In some applications, loosening the connecting component 326 allows the support column 321 to move along the extension direction of the mounting groove 311, thereby adjusting the relative distance between the support component 320 and the nozzle 100. After adjusting the distance, the connecting component 326 is tightened to fix the support component 320 to the third connector 310.

[0030] Threads formed by directly tapping the mounting hole are prone to stripping and wear due to repeated tightening and stress of fasteners. Therefore, in some embodiments of this utility model, such as... Figures 1 to 3 As shown, an insert 325 is provided within the mounting hole 323. The insert 325 can be made of high-strength metal, and the connecting component 326 is threadedly connected to the insert 325. The insert 325 can be pre-machined with high-precision threads and then fixed in the mounting hole 323 through an inserting process. This ensures the accuracy of the thread fit and the stability of the connection with the connecting component 326, preventing the support component 300 from loosening due to thread fit issues, which would affect the accuracy of the nail spot welding.

[0031] In some embodiments of this utility model, such as Figures 1 to 3 As shown, an elastic element 324 is provided inside the mounting hole 323. The elastic element 324 abuts against the connecting part 326. The elastic element 324 is a spring and provides preload to prevent the connecting part 326 from loosening. After the insert 325 is connected to the mounting hole 323, the spring will undergo compression deformation due to the pressure of the connecting part 326. This deformation will be converted into a continuous reverse force acting on the connecting part 326. The preload ensures that the threads of the connecting part 326 and the insert 325 always remain tightly fitted, preventing the connecting part 326 from loosening even under the external forces such as vibration and impact generated during long-term operation of the gun head pulling structure.

[0032] In some embodiments of this utility model, such as Figures 1 to 3As shown, the first connector 200 has multiple cutting slits 220 on the side facing the second connector 400. Each cutting slit 220 divides one end of the first connector 200 into multiple petal-shaped portions 230. There are four cutting slits 220, dividing one end of the first connector 200 into four petal-shaped portions 230. The second connector 400 is screwed onto the petal-shaped portions 230. Due to the presence of the cutting slits 220, the petal-shaped portions 230 possess a certain elastic deformation capability. Under the screwing force of the second connector 400, the petal-shaped portions 230 will contract inward, thus tightly fitting the nozzle 100 to achieve a stable clamping of the nozzle 100, ensuring the reliability of the connection and preventing loosening of components due to vibration or other factors during operation.

[0033] In some embodiments of this utility model, such as Figure 2 and Figure 3 As shown, the support assembly 300 has an arc-shaped surface on the side facing the nozzle 100, and the arc-shaped surface is disposed on the support base 322. The arc-shaped surface is set with the axis of the nozzle 100 as the center, and the radial distance between the arc-shaped surface and the nozzle 100 is consistent. During the angle adjustment of the nozzle 100 or the fine adjustment of the support assembly 300, the arc-shaped surface can always maintain a preset safety gap with the nozzle 100, which can minimize the interference between the support base 322 and the nozzle 100 in the working space.

[0034] In some embodiments of this utility model, such as Figures 1 to 3 As shown, the outer peripheral walls of the first limiting part 210 and the second limiting part 410 are provided with anti-slip textures. These textures enhance the friction between the operator's hand and the first limiting part 210 or the second limiting part 410. When rotating and adjusting the first limiting part 210 or the second limiting part 410, the anti-slip textures effectively prevent hand slippage, allowing the operator to grip and apply force more firmly, and facilitating control of the rotation range between the first connecting member 200 and the second connecting member 400.

[0035] The welding torch according to this utility model includes the torch head pull-out structure of this utility model.

[0036] The welding torch of this utility model has at least the following beneficial effects: In conjunction with the first limiting part 210 and the second limiting part 410, it can prevent the nozzle 100 and the support assembly 300 from moving axially relative to each other, avoiding nozzle head support offset, improving the accuracy of stud spot welding, and reducing welding defects. Simultaneously, the limiting parts dampen the rotation of the support assembly 300, requiring force to overcome the resistance and preventing it from rotating arbitrarily due to gravity or light touch, ensuring operational stability and enhancing operational controllability. The support component 320 and the third connecting part 310 are in sliding engagement, and the support base 322 and the support column 321 are detachable, allowing for flexible adaptation to different scenarios and workpieces, enhancing versatility.

[0037] Other components and operations of the welding torch according to the embodiments of this utility model are known to those skilled in the art and will not be described in detail here.

[0038] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A gun head drawing structure, characterized in that, include: The nozzle is surrounded by a first connecting member, which has a first limiting part. Support component, movably connected to the first connector; The second connector is provided with a second limiting part. The second connector is threadedly connected to the first connector and can drive the first limiting part to move toward one side of the second limiting part to press against the support component.

2. The gun head drawing structure according to claim 1, characterized in that: The support assembly includes a third connector and a support component. The third connector is sleeved around the first connector and has a mounting groove that extends toward one side of the first connector. The support component is slidably disposed in the mounting groove in the extending direction of the mounting groove.

3. The gun head drawing structure according to claim 2, characterized in that: The support component includes a support column and a support base. The support column is installed in the mounting groove, and the support base is detachably connected to the support column.

4. The gun head drawing structure according to claim 3, characterized in that: The support column has an internal mounting hole, and the third connector passes through the mounting groove and the mounting hole via a connecting component to fix the third connector to the support column.

5. The gun head drawing structure according to claim 4, characterized in that: An elastic element is provided inside the mounting hole, and the elastic element abuts against the connecting component to prevent the connecting component from loosening.

6. The gun head drawing structure according to claim 5, characterized in that: An insert is provided in the mounting hole, and the connecting component is threadedly connected to the insert.

7. The gun head drawing structure according to claim 1, characterized in that: The first connector has multiple cutting slits on the side facing the second connector, the cutting slits dividing one end of the first connector into multiple petal-shaped portions, and the second connector is threaded to the petal-shaped portions.

8. The gun head drawing structure according to claim 1, characterized in that: The support component has an arc-shaped surface on the side facing the nozzle.

9. The gun head drawing structure according to claim 1, characterized in that: The outer peripheral walls of the first limiting part and the second limiting part are provided with anti-slip texture.

10. A welding torch, characterized in that: Includes the gun head pulling structure as described in any one of claims 1 to 9.

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