Welding torch

Abstract

The utility model discloses a kind of welding torch. Welding torch includes swan neck, connecting portion and wire guide portion. Swan neck is used to connect to cable. Swan neck is configured as hollow structure. Connecting portion includes first end and second end opposite to first end. First end is detachably connected to the end of swan neck. Second end is used to connect nozzle. Wire guide portion is arranged in swan neck and extends through connecting portion. According to the welding torch of the utility model, the split structure of swan neck and connecting portion is adopted, after the service life of connecting portion is reached due to abrasion, only connecting portion needs to be replaced, without replacing swan neck, thereby significantly reducing maintenance and replacement cost. And when maintaining and replacing worn connecting portion, welding torch does not need to be complicatedly disassembled and debugged, replacement time can be significantly reduced, thereby saving equipment downtime, improving welding production efficiency. Resource waste and environmental pollution caused by swan neck overall scrapping can also be reduced, in line with sustainable development concept.

Description

Technical Field

[0001] This utility model relates to the technical field of welding, and more specifically to a welding torch. Background Technology

[0002] The existing gooseneck welding torch has a gooseneck and end piece that are integral components (e.g., one-piece molded aluminum alloy or copper alloy). The welding torch nozzle and the gooseneck are connected by threads. The threads at the end of the gooseneck are easily damaged by high temperature, welding spatter and fumes, as well as frequent disassembly and assembly. This results in a short service life for the gooseneck of the welding torch. Moreover, the entire gooseneck needs to be replaced when it is replaced, which is expensive and time-consuming and labor-intensive, affecting production efficiency.

[0003] Therefore, a welding torch is needed to at least partially solve the above problems. Utility Model Content

[0004] The description of this utility model introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. This description is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0005] To at least partially solve the above problems, this utility model provides a welding torch, comprising:

[0006] The goose neck, used for connecting to the cable, has a hollow structure.

[0007] A connecting portion, comprising a first end and a second end opposite to the first end, the first end being detachably connected to the end of the gooseneck, and the second end being for connecting a nozzle; and

[0008] A guide wire portion, which passes through the gooseneck and extends through the connecting portion.

[0009] The welding torch of this invention adopts a separate structure for the gooseneck and the connecting part. When the connecting part reaches its service life due to wear, only the connecting part needs to be replaced, without replacing the gooseneck, thus significantly reducing maintenance and replacement costs. Furthermore, when maintaining or replacing the worn connecting part, there is no need for complex disassembly and adjustment of the welding torch, significantly reducing replacement time and saving equipment downtime, thereby improving welding production efficiency. It also reduces resource waste and environmental pollution caused by the complete scrapping of the gooseneck, aligning with the concept of sustainable development.

[0010] Optionally, the first end is configured as an attachment cover, which is fitted onto the end of the goose neck and connected to the end of the goose neck by crimping.

[0011] Optionally, the outer surface of the end of the goose neck is provided with a groove, and the attachment cover is at least partially located within the groove.

[0012] Optionally, the end of the goose neck includes a fixing portion, and the first end is threadedly connected to the fixing portion.

[0013] Optionally, it also includes:

[0014] A splitter, the splitter comprising:

[0015] The joint portion, which is connected to the guide wire portion; and

[0016] The main body portion, connected to the joint portion, is cylindrical in shape and has an exhaust port that penetrates the main body portion; and

[0017] A conductive nozzle is connected to the end of the main body that is away from the joint portion.

[0018] Optionally, the vent hole is inclined from the inside out toward the conductive nozzle relative to the radial direction of the main body.

[0019] Optionally, the vent hole is tilted at an angle of 15-25° relative to the radial direction.

[0020] Optionally, the distance between the vent hole and the end face of the main body near the conductive nozzle is 21-24 mm.

[0021] Optionally, at least two of the exhaust holes are spaced apart along the circumferential direction of the main body.

[0022] Optionally, two adjacent vent holes are located at different positions in the axial direction of the main body. Attached Figure Description

[0023] The following drawings, which are incorporated herein by reference as part of this invention, are provided for understanding the invention. The drawings illustrate embodiments of the invention and their descriptions, serving to explain the principles of the invention.

[0024] In the attached image:

[0025] Figure 1 This is a front view schematic diagram of a welding torch according to the first embodiment of this application;

[0026] Figure 2 for Figure 1 A front view of the connection part of the welding torch in the diagram;

[0027] Figure 3 This is a front view schematic diagram of a welding torch according to the second embodiment of this application;

[0028] Figure 4 for Figure 3 Front view of the connection part of the welding torch

[0029] Figure 5 This is a front view schematic diagram of the distributor of a welding torch according to a preferred embodiment of this application.

[0030] Explanation of reference numerals in the attached figures:

[0031] 110, 210: Goose neck

[0032] 111: Groove

[0033] 212: Fixing part

[0034] 120, 220: Connecting parts

[0035] 121, 221: First end

[0036] 122, 222: Second end

[0037] 130, 230: Guidewire section

[0038] 140: Diverter

[0039] 141: Joint

[0040] 142: Main body

[0041] 143: Exhaust port

[0042] 150: Conductive tip Detailed Implementation

[0043] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0044] To fully understand this invention, a detailed description will be provided below. Obviously, the implementation of this invention is not limited to the specific details familiar to those skilled in the art. Preferred embodiments of this invention are described in detail below; however, other embodiments may also be possible besides these detailed descriptions.

[0045] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of the stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or combinations thereof.

[0046] The ordinal numbers such as "first" and "second" used in this invention are merely identifiers and have no other meaning, such as a specific order. Furthermore, for example, the term "first component" does not imply the existence of "second component," and the term "second component" does not imply the existence of "first component."

[0047] It should be noted that the terms “up,” “down,” “front,” “back,” “left,” “right,” “inner,” “outer,” and similar expressions used in this article are for illustrative purposes only and are not intended to be restrictive.

[0048] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of the present invention is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art.

[0049] like Figures 1-4 As shown, this utility model discloses a welding torch. The welding torch includes a gooseneck 110, a connecting portion 120, and a wire guide portion 130. The gooseneck 110 is used to connect to a cable. The gooseneck 110 has a hollow structure. The connecting portion 120 includes a first end 121 and a second end 122 opposite to the first end 121. The first end 121 is detachably connected to the end of the gooseneck 110. The second end 122 is used to connect a nozzle. The wire guide portion 130 passes through the gooseneck 110 and extends through the connecting portion 120.

[0050] The welding torch of this invention adopts a separate structure of gooseneck 110 and connecting part 120. When the connecting part 120 reaches its service life due to wear, only the connecting part 120 needs to be replaced, without replacing the gooseneck 110, thus significantly reducing maintenance and replacement costs. Furthermore, when maintaining or replacing the worn connecting part 120, there is no need for complex disassembly and adjustment of the welding torch, significantly reducing replacement time, thereby saving equipment downtime and improving welding production efficiency. It also reduces resource waste and environmental pollution caused by the complete scrapping of the gooseneck 110, conforming to the concept of sustainable development.

[0051] The second end 122 of the connecting portion 120 may be provided with an external thread, and the nozzle may be provided with an internal thread that can engage with the second end 122 of the connecting portion 120, so that the nozzle is threadedly connected to the second end 122 of the connecting portion 120. An insulating portion, such as insulating adhesive, is provided between the outer surface of the guide wire portion 130 and the inner surface of the gooseneck 110 to prevent leakage. Similarly, an insulating portion is also provided between the outer surface of the guide wire portion 130 and the inner surface of the connecting portion 120.

[0052] like Figure 1 and Figure 2 As shown, according to the first embodiment of this utility model, the first end 121 of the connecting portion 120 is constructed as an attachment cover. The attachment cover is fitted onto the end of the gooseneck 110 and connected to the end of the gooseneck 110 by compression. The diameter of the attachment cover is larger than the diameter of the end of the gooseneck 110, so that the attachment cover can be fitted onto the end of the gooseneck 110. For example, the diameter of the attachment cover is 1-3 cm larger than the diameter of the end of the gooseneck 110. After the attachment cover is fitted onto the end of the gooseneck 110, it is tightly attached to the end of the gooseneck 110 by hydraulic pressure or other means, thereby achieving a fixed connection.

[0053] A groove 111 is provided on the outer surface of the end of the goose neck 110, and the attachment cover is at least partially located within the groove 111. Preferably, the groove 111 extends along the length direction of the goose neck 110, and a plurality of grooves 111 are spaced apart along the circumferential direction of the goose neck 110. Under pressure, the portion of the attachment cover corresponding to the groove 111 sinks into the groove 111, forming a nested structure with the groove 111. Thus, the nested structure makes the connection between the connecting portion 120 and the goose neck 110 more secure, preventing the connecting portion 120 from detaching from the goose neck 110.

[0054] After the connecting part 120 reaches the end of its service life, simply break the clamping connection between the attachment cover and the end of the gooseneck 110, or cut the connecting part 120 off the gooseneck 110 while retaining the gooseneck 110 for continued use. Then, a new connecting part 120 can be crimped onto the gooseneck 110 as described above. Experimental verification shows that using the connecting part 120 of the first embodiment can reduce maintenance and replacement costs by 83.33%.

[0055] like Figure 3 and Figure 4 As shown, according to the second embodiment of this utility model, the end of the gooseneck 210 includes a fixing part 212. The first end 221 of the connecting part 220 is threaded to the fixing part 212. The fixing part 212 can be integrally formed with the gooseneck 210, or it can be connected to the end of the gooseneck 210 by means of crimping or the like. In this embodiment, the fixing part 212 is provided with an internal thread, and the first end 221 of the connecting part 220 is provided with an external thread that can engage with the internal thread of the fixing part 212. When installing the connecting part 220, simply screw the first end 221 of the connecting part 220 into the fixing part 212. If necessary, the fixing part 212 can also be provided with an external thread, and the first end 221 of the connecting part 220 can be provided with an internal thread that can engage with the external thread of the fixing part 212.

[0056] After the connecting part 220 reaches the end of its service life, simply unscrew the connecting part 220, leaving the gooseneck 210 and the fixing part 212 still usable. Then, screw a new connecting part 220 into the fixing part 212. Experimental verification shows that using the connecting part 220 of the second embodiment can further reduce maintenance and replacement costs by 90% compared to the first embodiment.

[0057] like Figure 5 As shown, the welding torch also includes a distributor 140 and a contact tip 150. The distributor 140 is detachably connected to the wire guide portion 130. The distributor 140 includes a joint portion 141 and a main body portion 142. The joint portion 141 is detachably connected to the wire guide portion 130. The main body portion 142 is connected to the joint portion 141, specifically, one end of the main body portion 142 is connected to the end of the joint portion 141. The main body portion 142 is cylindrical. The main body portion 142 is provided with an vent hole 143, specifically, the vent hole 143 is provided on the side wall of the main body portion 142. The vent hole 143 penetrates through the main body portion 142. The cylindrical shape of the main body portion 142 reduces the gap between the main body portion 142 and the inner surface of the hollow cylindrical reamer of the automatic torch cleaning station, thereby facilitating the interaction between the distributor 140 and the reamer, achieving efficient cleaning of welding spatter on the surface of the distributor 140. The conductive nozzle 150 is connected to the end of the main body 142 away from the engagement portion 141. For example, the guide wire portion 130 is provided with an external thread, and the engagement portion 141 is provided with an internal thread that can engage with the external thread of the guide wire portion 130, so that the distributor 140 and the conductive nozzle 150 can be threadedly connected to the guide wire portion 130. After connecting the distributor 140 and the conductive nozzle 150, the nozzle is threadedly connected to the second end 122 of the connecting portion 120, so that the nozzle wraps around the distributor 140 and the conductive nozzle 150.

[0058] The vent 143 is inclined from the inside out towards the conductive nozzle 150 relative to the radial direction of the main body 142. Preferably, the inclination angle α of the vent 143 relative to the radial direction of the main body 142 is 15-25°. The inclined vent 143 makes it easy to remove welding spatter after cleaning.

[0059] The distance L between the vent 143 and the end face of the main body 142 near the conductive nozzle 150 is 21-24 mm. Compared with existing distributors, the vent 143 is closer to the conductive nozzle 150, allowing the reamer to completely cover the vent 143, thereby achieving complete cleaning of welding spatter.

[0060] At least two vent holes 143 are spaced apart along the circumferential direction of the main body 142. Two adjacent vent holes 143 are located at different positions in the axial direction of the main body 142. Further, as... Figure 5 As shown, multiple vent holes 143 are staggered along the axial direction of the main body 142. This avoids mutual interference between the vent holes 143 and facilitates the cleaning of welding spatter at the vent holes 143.

[0061] By using the shunt 140 of this utility model, welding spatter can be prevented from clogging the vent 143, ensuring venting efficiency and reducing the weld porosity defect rate to below 5%, effectively improving welding quality. It can also prevent the unremovable welding spatter from causing the gooseneck 110 and shunt 140 to stick together and form a conductive circuit, thereby burning out the gooseneck 110 and shunt 140 and other components, thus extending the service life of the shunt 140. The actual service life is more than 3.5 times longer than that of the existing shunt 140.

[0062] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for descriptive purposes only and is not intended to limit the scope of the invention. Features described in one embodiment may be applied, alone or in combination with other features, to another embodiment, unless that feature is not applicable in that other embodiment or is otherwise stated.

[0063] This utility model has been described through the above embodiments. However, it should be understood that the above embodiments are only for illustrative purposes. This utility model is not limited to the above embodiments. Many variations and modifications can be made based on the teachings of this utility model, and all such variations and modifications fall within the scope of protection claimed by this utility model.

Claims

1. A welding torch, characterized in that, include: The goose neck, used for connection to the cable, is a hollow structure. A connecting portion, comprising a first end and a second end opposite to the first end, the first end being detachably connected to the end of the gooseneck, and the second end being for connecting a nozzle; and A guide wire portion, which passes through the gooseneck and extends through the connecting portion.

2. The welding torch according to claim 1, characterized in that, The first end is constructed as an attachment cover, which is fitted onto the end of the goose neck and connected to the end of the goose neck by crimping.

3. The welding torch according to claim 2, characterized in that, The outer surface of the end of the goose neck is provided with a groove, and the attachment cover is at least partially located within the groove.

4. The welding torch according to claim 1, characterized in that, The end of the goose neck includes a fixing part, and the first end is threaded to the fixing part.

5. The welding torch according to any one of claims 1-4, characterized in that, Also includes: A splitter, the splitter comprising: The joint portion, which is connected to the guide wire portion; and The main body portion, connected to the joint portion, is cylindrical in shape and has an exhaust port that penetrates the main body portion; and A conductive nozzle is connected to the end of the main body that is away from the joint portion.

6. The welding torch according to claim 5, characterized in that, The vent is inclined from the inside out toward the conductive nozzle relative to the radial direction of the main body.

7. The welding torch according to claim 6, characterized in that, The vent is tilted at an angle of 15-25° relative to the radial direction.

8. The welding torch according to claim 5, characterized in that, The distance between the vent hole and the end face of the main body near the conductive nozzle is 21-24 mm.

9. The welding torch according to claim 5, characterized in that, At least two of the exhaust holes are spaced apart along the circumferential direction of the main body.

10. The welding torch according to claim 9, characterized in that, The two adjacent vent holes are located at different positions in the axial direction of the main body.

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