Welding protective cover and spark-splash-proof welding gun

Abstract

The invention relates to the technical field of welding equipment, in particular to a welding protective cover and a spark splashing prevention welding gun, the welding protective cover comprises a cover body, the cover body is used for being connected to the welding gun in a sleeving mode, and a welding opening allowing an electrode tip of the welding gun to stretch out is formed in the cover body; the cover body can deform in the first direction so as to change the position of the welding opening, the welding opening is connected with a magnetic piece used for magnetically attracting a workpiece to be welded, the cover body is connected with an elastic piece, one end of the elastic piece is connected with the end, close to the welding opening, of the cover body, and the other end of the elastic piece is connected with the welding opening. And the other end of the elastic piece is connected with one end, far away from the welding opening, of the cover body. The welding protective cover does not need to be manually controlled, so that the welding protective cover is more convenient to use and lower in use cost. According to the welding gun capable of preventing spark splashing, the welding protective cover is adopted, and welding spark splashing can be prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of welding equipment, and more specifically, to a welding protective cover and a welding torch for preventing spark splashing. Background Art

[0002] With the improvement of automobile production capacity, the management requirements for product quality in modern automobile production have been gradually improved. When the existing automatic line and manual line welding torches weld sheet metals, large amounts of spark splashes will be generated. The splashes hitting the parts will cause quality problems such as sheet metal, and the spark splashes of the welding torch will cause environmental impacts and safety risks. More specifically, during the process of forming a solder nugget at the welding point, some liquid metals will splash. The splashes hitting other parts of the parts will cause slight depressions on the parts, thus forming a poor quality of sheet metal dents. When the splashes fly into the gaps between the parts being built, such as when the parts need to be flanged, sheet metal protrusions will be formed at the parts with welding slag after flanging, and subsequent manual repair operations are required, resulting in waste of labor and reduction of production efficiency.

[0003] To prevent welding spark splashing, relevant research has been carried out in the prior art. For example, Chinese Patent Publication No. CN215746976U discloses a welding torch with a protective function. A protective cover is slidably connected to the welding torch. The protective cover is connected with a pull rod, and the protective cover is driven to move by pulling the pull rod to cover the electrode head part for protection. However, the above patent requires manual pulling of the protective cover to move during the welding process, resulting in inconvenient use. If a motor is used to drive the protective cover to move, the cost will increase greatly. Summary of the Invention

[0004] To overcome the problem of inconvenient use of the welding protective cover in the above-mentioned prior art, a first aspect of the present invention provides a welding protective cover that can automatically cover the electrode head during welding to prevent spark splashing and can automatically open to expose the electrode head when not welding, facilitating electrode cap replacement.

[0005] A second aspect of the present invention provides a welding torch for preventing spark splashing.

[0006] To solve the above technical problems, the technical solution adopted by the present invention is: a welding protective cover, comprising: a cover body, the cover body is used for sleeving on the welding torch, the cover body is provided with a welding opening for the electrode head of the welding torch to extend out, the cover body can deform along a first direction so as to change the position of the welding opening, a magnetic member for magnetically attracting the workpiece to be welded is connected at the welding opening, the cover body is connected with an elastic member, one end of the elastic member is connected with one end of the cover body close to the welding opening, and the other end of the elastic member is connected with the other end of the cover body far from the welding opening.

[0007] In the technical solution of the present invention, the welding protective cover is used to sleeved on the welding torch. When welding is not in progress, the electrode head extends out from the welding opening of the protective cover, which is convenient for changing the cap of the welding torch electrode. When welding starts, the welding torch approaches the workpiece, and the magnetic part attracts the workpiece, thereby pulling the cover body and the elastic part to deform along the first direction. The cover body can cover the electrode head to prevent spark splash. When welding is completed, the welding torch moves away from the workpiece, and the magnetic part separates from the workpiece. At this time, the elastic part restores and pulls the cover body to deform, so that the electrode head can extend out from the welding opening. The welding protective cover of the present invention does not need to be manually controlled and can automatically open and close along with the welding process, so it is more convenient to use and has a lower use cost.

[0008] Further, it further includes a first bracket and a second bracket. Both the first bracket and the second bracket are respectively connected to the cover body. The first bracket is farther from the welding opening than the second bracket. Two ends of the elastic part are respectively connected to the first bracket and the second bracket. The first bracket is used for fixedly connecting with the welding torch.

[0009] In this solution, the first bracket and the second bracket are adopted to facilitate the connection between the elastic part and the cover body. The connection between the first bracket and the welding torch can provide stable support for one end of the elastic part.

[0010] Further, the first bracket is connected with a guide post extending along the first direction, and the second bracket is provided with a guide hole. The guide post is movably arranged through the guide hole.

[0011] In this solution, the guide post and the guide hole play a guiding role in the deformation direction of the elastic part and the cover body, reducing shaking and movement deviation.

[0012] Further, it further includes a third bracket. The third bracket is fixedly connected with the cover body. The third bracket is farther from the welding opening than the second bracket. The third bracket is used for connecting with the welding torch.

[0013] In this solution, the cover body is further connected with the welding torch by the third bracket, so that two parts of the cover body are respectively fixed to the welding torch, improving the connection stability between the cover body and the welding torch.

[0014] Further, the first bracket, the second bracket and the third bracket respectively include an outer annular part, an inner annular part and a fixing rod. The outer annular part is fixedly connected with the inner side wall of the cover body. One end of the fixing rod is fixedly connected with the outer annular part, and the other end of the fixing rod is fixedly connected with the inner annular part.

[0015] In this solution, a hollowed-out area is formed between the outer and inner annular parts of the first bracket, the second bracket, and the third bracket, which is lighter while providing stable support. The external cables and pipelines connected to the welding torch can pass through the hollowed-out area and are restricted inside this area, reducing interference caused by the swinging of the cables and pipelines during the welding process.

[0016] Furthermore, both the outer annular part and the inner annular part are respectively configured to be detachable into semi-circular rings along the cross-section in the first direction.

[0017] In this solution, the detachable outer and inner annular parts facilitate the disassembly and assembly of the first bracket, the second bracket, and the third bracket.

[0018] Furthermore, the magnetic part is configured to be an annular shape that matches the edge of the welding opening.

[0019] In this solution, setting the magnetic part as an annular shape can make the circumference of the welding opening fully fit the surface of the workpiece, preventing welding sparks from splashing.

[0020] Furthermore, an anti-welding slag adhesion coating is provided on the inner side wall of the cover body.

[0021] In this solution, the anti-welding slag adhesion coating provided on the inner side wall of the cover body plays a protective role for the cover body.

[0022] Furthermore, the elastic part is a tension spring.

[0023] In this solution, the elastic part is a tension spring. When welding, the magnetic part attracts the workpiece, and the tension spring elongates, thereby pulling the cover body to elongate and cover the electrode head; when not welding, the magnetic part separates from the workpiece, and the tension spring contracts and restores, thereby pulling the cover body to shorten and expose the electrode head.

[0024] A welding torch for preventing welding sparks from splashing includes a welding torch body and the welding protection cover as described in the first aspect, and the welding protection cover is connected to the welding torch body; in the non-welding state, the electrode head of the welding torch body can extend out from the welding opening, and in the welding state, the electrode head of the welding torch body is located inside the welding protection cover.

[0025] In the technical solution of the present invention, since the welding torch for preventing welding sparks from splashing adopts the above-mentioned welding protection cover, it can prevent welding sparks from splashing, is very convenient to use, and has a relatively low cost.

[0026] Compared with the prior art, the beneficial effects of the present invention are:

[0027] 1. The welding protective cover of the present invention is used to be sleeved on a welding torch. When welding is not in progress, the electrode head extends out from the welding opening of the protective cover, facilitating the replacement of the electrode cap of the welding torch. When welding starts, the welding torch approaches the workpiece, and the magnetic part attracts the workpiece, thereby pulling the cover body and the elastic part to deform in the first direction. The cover body can cover the electrode head to prevent spark splashing. When welding is completed, the welding torch moves away from the workpiece, and the magnetic part separates from the workpiece. At this time, the elastic part resumes its original shape and pulls the cover body to deform, enabling the electrode head to extend out from the welding opening. The welding protective cover of the present invention does not require manual control and can automatically open and close along with the welding process. Therefore, it is more convenient to use and has a lower usage cost.

[0028] 2. The welding torch for preventing spark splashing of the present invention adopts the above-mentioned welding protective cover, which can prevent welding spark splashing, is very convenient to use, and has a lower cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a schematic diagram of the overall structure of the welding protective cover of the present invention;

[0030] Figure 2 is an exploded view of the welding protective cover of the present invention;

[0031] Figure 3 is a schematic diagram of the structure of the welding protective cover when the elastic part is not stretched;

[0032] Figure 4 is a schematic diagram of the structure of the C-shaped welding torch in the non-welding state;

[0033] Figure 5 is a schematic diagram of the structure of the C-shaped welding torch in the welding state;

[0034] Figure 6 is a schematic diagram of the structure of the welding torch for preventing spark splashing of the present invention in the non-welding state;

[0035] Figure 7 is a schematic diagram of the structure of the welding torch for preventing spark splashing of the present invention in the welding state.

[0036] In the drawings: 1. Cover body; 11. Welding opening; 2. Magnetic part; 3. Elastic part; 4. First bracket; 41. Guide post; 5. Second bracket; 51. Guide hole; 6. Third bracket; 71. Outer annular part; 72. Inner annular part; 73. Fixed rod; 8. Welding torch body; 81. Frame; 82. Servo motor; 83. Telescopic shaft; 84. Upper electrode; 85. Lower electrode; 86. Electrode head. DETAILED DESCRIPTION OF THE INVENTION

[0037] The accompanying drawings are only for illustrative purposes and should not be construed as limiting the patent. For better illustration of this embodiment, some components in the drawings are omitted, enlarged or reduced, which do not represent the dimensions of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted. The positional relationships described in the drawings are only for illustrative purposes and should not be construed as limiting the patent.

[0038] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "long", "short", etc. indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only for illustrative purposes and should not be construed as limiting the patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0039] The technical solutions of the present invention will be further specifically described below through specific embodiments in conjunction with the accompanying drawings:

[0040] Embodiment 1

[0041] Reference Figures 1 to 3 , this embodiment discloses a welding protective cover, including a cover body 1, which is used to sleeved on the welding torch to prevent sparks from splashing during welding. The cover body 1 is provided with a welding opening 11 for the electrode head of the welding torch to extend out. The cover body 1 can deform along the first direction to change the position of the welding opening 11. A magnetic member 2 for magnetically attracting the workpiece to be welded is connected at the welding opening 11. The cover body 1 is connected with an elastic member 3. One end of the elastic member 3 is connected to one end of the cover body 1 close to the welding opening 11, and the other end of the elastic member 3 is connected to the other end of the cover body 1 away from the welding opening 11. The elastic member 3 can deform along the first direction to drive the cover body 1 to deform so as to move the position of the welding opening 11. Taking the illustrated direction as an example, the first direction is the vertical direction.

[0042] During use, first sleeved the welding protective cover on the welding torch near the electrode head, and at least one part of the welding protective cover away from the welding opening 11 is connected to the welding torch. Reference Figure 6 , when welding is not carried out, the electrode head extends out from the welding opening 11 of the protective cover, which is convenient for changing the cap of the welding torch electrode. When starting to weld, the welding torch approaches the workpiece, and the magnetic member 2 attracts the workpiece, so as to pull the cover body 1 and the elastic member 3 to deform along the first direction. The cover body 1 can cover the electrode head to prevent sparks from splashing. Reference Figure 7。After welding is completed, the welding torch moves away from the workpiece, and the magnetic member 2 separates from the workpiece. At this time, the elastic member 3 resumes its original shape and pulls the cover 1 to deform, so that the electrode head can extend out of the welding opening 11. The welding protective cover of this embodiment does not need to be manually controlled and can be automatically opened and closed along with the welding process, so it is more convenient to use. The welding protective cover of this embodiment has a lower use cost because it does not require an additional drive motor.

[0043] In this embodiment, the cover 1 can be a flexible cover that can deform along the first direction under the drive of the magnetic member 2 or the elastic member 3. In some other embodiments, the cover 1 can adopt a telescopic structure that can telescopically deform in the first direction. The first direction in this embodiment can be consistent with the axial direction of the electrode head of the welding torch. The deformation of the cover 1 along the first direction can cover the electrode head with the welding opening 11 or expose the electrode head from the welding opening 11.

[0044] Reference Figure 1 Referring to, the welding protective cover of this embodiment further includes a first bracket 4 and a second bracket 5. Both the first bracket 4 and the second bracket 5 are respectively connected to the cover 1. The first bracket 4 is farther from the welding opening 11 than the second bracket 5. The two ends of the elastic member 3 are respectively connected to the first bracket 4 and the second bracket 5. The first bracket 4 is used for fixed connection with the welding torch. In this solution, the first bracket 4 and the second bracket 5 are used to facilitate the connection between the elastic member 3 and the cover 1. The connection between the first bracket 4 and the welding torch can provide stable support for one end of the elastic member 3.

[0045] Specifically, taking the Figure 1 shown direction as an example, both the first bracket 4 and the second bracket 5 are arranged inside the cover 1. The second bracket 5 is arranged below the first bracket 4 and closer to the welding opening 11. The first direction can be parallel to the axial direction of the electrode head 86 of the welding torch. The central connection line direction of the first bracket 4 and the second bracket 5 is parallel to the first direction. The upper end of the elastic member 3 is fixedly connected to the cover 1 and the welding torch through the first bracket 4. The lower end of the elastic member 3 is fixedly connected to the second bracket 5 and not fixedly connected to the welding torch. The lower end of the elastic member 3 is in a suspended state. In this way, the elastic member 3 can drive the second bracket 5 to move up and down along the first direction, thereby pulling the cover 1 to deform up and down, and further changing the height of the welding opening 11 in the up and down direction. When the elastic member 3 is in its original state, the electrode head 86 is exposed below the welding outlet; when the elastic member 3 is in an extended state, the electrode head 86 is covered by the cover 1.

[0046] Reference Figure 1, the first bracket 4 is connected with a guide post 41 extending in the first direction, and the second bracket 5 is provided with a guide hole 51. The guide post 41 passes through the guide hole 51 and is movably arranged. In this embodiment, the guide post 41 can move in the guide hole 51. Since the guide post 41 extends in the first direction, the guide post 41 and the guide hole 51 play a guiding role in the deformation direction of the elastic member 3 and the cover 1, reducing shaking and movement deviation.

[0047] Specifically, the number of the guide posts 41 can be multiple, and the number of the guide holes 51 corresponds to the number of the guide posts 41, so that each guide post 41 can pass through the lower guide hole 51 and move vertically.

[0048] Reference Figure 1 , the welding protective cover of this embodiment further includes a third bracket 6. The third bracket 6 is fixedly connected to the cover 1. The third bracket 6 is farther from the welding opening 11 than the second bracket 5. The third bracket 6 is used to connect with the welding torch.

[0049] In this embodiment, the cover 1 is further connected to the welding torch by the third bracket 6, so that two places of the cover 1 are respectively fixed to the welding torch, improving the connection stability between the cover 1 and the welding torch. In other embodiments, the installation position of the welding protective cover can be adjusted according to different types of welding torches. The first bracket 4 and the third bracket 6 are respectively fixed to different parts of the welding torch, improving the stability of the force. The second bracket 5 is not connected to the welding torch and is suspended to facilitate the elastic member 3 to drive the cover 1 to expand and contract.

[0050] Reference Figure 1 , the first bracket 4, the second bracket 5 and the third bracket 6 respectively include an outer annular portion 71, an inner annular portion 72 and a fixing rod 73. The outer annular portion 71 is fixedly connected to the inner side wall of the cover 1. One end of the fixing rod 73 is fixedly connected to the outer annular portion 71, and the other end of the fixing rod 73 is fixedly connected to the inner annular portion 72.

[0051] In this embodiment, a hollow area is formed between the outer annular portion 71 and the inner annular portion 72 of the first bracket 4, the second bracket 5 and the third bracket 6, which is lighter while providing stable support. The external cables and water and gas pipelines connected to the welding torch can pass through the hollow area and are restricted inside the hollow area, reducing the interference caused by the shaking of the cables and pipelines during the welding process.

[0052] Specifically, a plurality of fixing rods 73 may be uniformly arranged in the circumferential direction. The fixing rods 73 play a connecting role for the outer annular portion 71 and the inner annular portion 72. For example, in this embodiment, four fixing rods 73 are provided. The space between the outer annular portion 71 and the inner annular portion 72 is divided into four fan-shaped parts by the four fixing rods 73. Each fan-shaped part is approximately 90 degrees, which can limit the cables and water and gas pipes. Among them, the vertical projections of the fan-shaped parts of the first bracket 4, the second bracket 5, and the third bracket 6 may correspond to each other, which is convenient for the cables and water and gas pipelines to pass through in sequence and reduces bending.

[0053] Reference Figure 1 , the magnetic member 2 is configured as an annular shape that matches the edge of the welding opening 11. In this embodiment, setting the magnetic member 2 as an annular shape can make the circumference of the welding opening 11 fully fit the surface of the workpiece and prevent welding sparks from splashing.

[0054] In this embodiment, the inner side wall of the cover 1 is provided with an anti-welding slag adhesion coating. By providing the anti-welding slag adhesion coating on the inner side wall of the cover 1, it plays a protective role for the cover 1. The cover 1 can be made of a fireproof material, such as fireproof plastic, and needs to have a certain deformation ability to deform under the action of the magnetic member 2 and the elastic member 3. For example, the side wall of the cover 1 is designed to be wavy or wrinkled, and vertical expansion can be generated through bending deformation. Existing anti-welding slag adhesion materials can be used to coat the inner side wall of the cover 1 to form the anti-welding slag adhesion coating.

[0055] In this embodiment, the elastic member 3 is a tension spring. Reference Figure 7 , when welding, the magnetic member 2 attracts the workpiece, and the tension spring elongates to pull the cover 1 to elongate and cover the electrode head 86. Reference Figure 6 , when not welding, the magnetic member 2 separates from the workpiece, and the tension spring contracts and restores to pull the cover 1 to shorten and expose the electrode head 86.

[0056] Embodiment 2

[0057] Reference Figure 2 , this embodiment is similar to Embodiment 1, the difference is that in this embodiment, the outer annular portion 71 and the inner annular portion 72 are each configured to be detachably semi-circular in the cross-section along the first direction. Through the detachable outer annular portion 71 and inner annular portion 72, it is convenient to disassemble and assemble the first bracket 4, the second bracket 5, and the third bracket 6. The cross-section along the first direction in this embodiment can refer to Figure 1 as a vertical cross-section, that is, the cross-section along the axial direction of the electrode head.

[0058] Specifically, taking the direction shown in Figure 1 as an example, the plane where the first direction is located is the vertical plane, which is herein referred to as the disassembly surface. The first bracket 4, the second bracket 5, and the third bracket 6 can all be detachably separated along the disassembly surface, which facilitates installation. The cover 1 can also be detachable along the disassembly surface, at the same disassembly position as the first bracket 4, the second bracket 5, and the third bracket 6, which also facilitates installation. Among them, the fixing rod 73 located on the disassembly surface can also be detachably separated along both sides of the disassembly surface, and the separated fixing rods 73 can be connected by bolts.

[0059] Embodiment 3

[0060] Reference Figures 4 to 7 , this embodiment discloses a welding torch for preventing spark splash, including a welding torch body 8 and a welding protective cover as in Embodiment 1 or Embodiment 2, and the welding protective cover is connected to the welding torch body 8. In the non-welding state, the electrode head 86 of the welding torch body 8 can extend out from the welding opening 11, and in the welding state, the electrode head 86 of the welding torch body 8 is located inside the welding protective cover.

[0061] Reference Figure 4 and Figure 5 , the welding torch body 8 is described by taking an existing C-type welding torch as an example. The C-type welding torch includes a frame 81, a servo motor 82, a telescopic shaft 83, an upper electrode 84, a lower electrode 85, and an electrode head 86. The upper end of the frame 81 is connected to the servo motor 82, the output shaft of the servo motor 82 is drivingly connected to the telescopic shaft 83, the moving end of the telescopic shaft 83 is connected to the upper electrode 84, the lower electrode 85 is connected to the lower end of the frame 81 and is located on the opposite side of the upper electrode 84, and electrode heads 86 are installed at the ends of both the upper electrode 84 and the lower electrode 85. During use, the servo motor 82 drives the telescopic shaft 83 to move, driving the upper electrode 84 to approach the lower electrode 85, so that the electrode heads 86 contact both sides of the workpiece to be welded, and the circuit is connected for welding. During use, the electrode heads 86 will be worn and consumed by high temperature, so they need to be replaced regularly. If a fixed protective cover is used, the protective cover needs to be disassembled first to replace the electrode heads 86, which is inconvenient to use.

[0062] Reference Figure 6 and Figure 7 , the welding protective cover is connected to the part where the upper electrode 84 is located. Specifically, the first bracket 4 is connected to the moving end of the telescopic shaft 83, and the first bracket 4 can move along with the telescopic shaft 83. The third bracket 6 is connected to the fixed end of the servo motor 82, and the second bracket 5 is suspended below the first bracket 4. The upper electrode 84 and the electrode heads 86 extend out of the welding protective cover from the welding opening 11, which is convenient for replacing the electrode heads 86 in the non-welding state. In the welding state, the welding protective cover can cover the position of the electrode heads 86 to prevent spark splash.

[0063] The welding torch for preventing spark splashing in this embodiment adopts a welding protective cover, which can prevent welding sparks from splashing, is very convenient to use, and has a low cost.

[0064] Obviously, the above-mentioned embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation manners here. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A welding protective cover, characterized in that: It includes a cover body (1) which is used to be sleeved on a welding torch. The cover body (1) is provided with a welding opening (11) for the electrode head of the welding torch to protrude. The cover body (1) can be deformed in the first direction so as to change the position of the welding opening (11). A magnetic part (2) for magnetically attracting the workpiece to be welded is connected at the welding opening (11). The cover body (1) is connected with an elastic part (3). One end of the elastic part (3) is connected to one end of the cover body (1) close to the welding opening (11), and the other end of the elastic part (3) is connected to the other end of the cover body (1) away from the welding opening (11).

2. The welding protection cover according to claim 1, characterized in that: It further includes a first bracket (4) and a second bracket (5). Both the first bracket (4) and the second bracket (5) are respectively connected to the cover body (1). The first bracket (4) is farther from the welding opening (11) than the second bracket (5). Two ends of the elastic part (3) are respectively connected to the first bracket (4) and the second bracket (5). The first bracket (4) is used for being fixedly connected to the welding torch.

3. The welding protection cover according to claim 2, wherein: The first bracket (4) is connected with a guiding column (41) extending in the first direction. The second bracket (5) is provided with a guiding hole (51). The guiding column (41) is movably arranged through the guiding hole (51).

4. The welding protection cover according to claim 2 or 3, characterized in that: It further includes a third bracket (6). The third bracket (6) is fixedly connected to the cover body (1). The third bracket (6) is farther from the welding opening (11) than the second bracket (5). The third bracket (6) is used for being connected to the welding torch.

5. The welding protective cover according to claim 4, wherein: The first bracket (4), the second bracket (5) and the third bracket (6) respectively include an outer annular part (71), an inner annular part (72) and a fixing rod (73). The outer annular part (71) is fixedly connected to the inner side wall of the cover body (1). One end of the fixing rod (73) is fixedly connected to the outer annular part (71), and the other end of the fixing rod (73) is fixedly connected to the inner annular part (72).

6. The welding protective cover according to claim 5, wherein: Both the outer annular part (71) and the inner annular part (72) are configured as detachable semi-circular rings in the cross-section along the first direction.

7. The welding protective cover according to claim 1, wherein: The magnetic part (2) is configured as an annular shape matching the edge of the welding opening (11).

8. The welding protective cover according to claim 1, characterized in that: The inner side wall of the cover body (1) is provided with an anti-welding slag adhesion coating.

9. The welding protective cover according to claim 1, wherein: The elastic part (3) is a tension spring.

10. A welding torch for preventing spark splash, characterized in that: It includes a welding torch body (8) and the welding protection cover according to any one of claims 1 to 9. The welding protection cover is connected to the welding torch body (8). In the non-welding state, the electrode head (86) of the welding torch body (8) can protrude from the welding opening (11). In the welding state, the electrode head (86) of the welding torch body (8) is located inside the welding protection cover.

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