A welding gas shielding tool
By designing a welding gas protection tool including channels, ring grooves and air holes, weld oxidation problems caused by the combustion and fall of paper tape during welding of stainless steel pipes, and an efficient and pollution-free welding effect is achieved.
Patent Information
- Application Number
- CN202421195755.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-29
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-05-29
AI Technical Summary
During the butt welding of stainless steel pipes, the prior art uses paper tape to seal the weld, which is prone to burning due to excessive temperatures, resulting in smoke and ash, affecting the quality of the weld. The paper tape may fall off and cause air to enter the weld, causing oxidation.
A welding gas protection tool is designed, including tool body, channels, ring grooves, air holes, platforms and welding interfaces. Through rotation adjustment of tool body and argon filling, the surface of the weld is protected and oxidized.
Effectively prevent weld oxidation, keep weld surface clean, improve welding efficiency and quality, and avoid the problems of burning and falling off paper tape.
Smart Images
Figure CN222711204U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of welding, in particular to a welding gas protection tooling. Background Art
[0002] When stainless steel pipes are butt-jointed, it is necessary to fill the inside with inert gas (argon) to protect the back of the weld to prevent oxidation of the weld. The existing technology generally adopts a circle of paper tape wrapped around the groove to seal it, fills argon from the side, and leaves a small hole at the top to release the air in the pipe.
[0003] However, there are the following problems: During the base welding, the paper tape close to the molten pool will burn due to the high temperature, and the smoke and ash produced will affect the surface quality of the weld and the cleanliness around the groove. As the welding continues, the temperature of the specimen gradually rises, and the remaining paper tapes tend to fall off, allowing air to enter, causing the weld to oxidize; and the paper tape at the front end of the welding pool in the direction of the weld part needs to be removed manually (usually, the welder pierces the paper tape with welding wire during welding), and the removal speed should be adapted to the welding speed so as not to affect the welding. Utility Model Content
[0004] The utility model aims to provide a welding gas shielding tool to solve the above-mentioned technical problems of preventing weld oxidation and obtaining a non-polluting weld workpiece.
[0005] In order to solve the above technical problems, the utility model provides a welding gas shielded tool, which includes a tool body, a channel is provided on the tool body, an annular groove is opened along the channel, an air hole is provided below the tool body, and the top of the tool body is cut out along the horizontal plane to form a platform, and a welding port is provided on the platform.
[0006] Furthermore, handles are provided on both side edges of the tool body.
[0007] Furthermore, a limiting groove is provided in the middle of the lower end of the tooling body, and clamping grooves are provided on both sides of the platform close to the welding port. A positioning plate is provided in the tooling body, and clamping blocks are provided on both sides of the upper end of the positioning plate. The clamping blocks are clearance-matched with the clamping groove. A limiting block is provided at the lower end of the positioning plate, and the limiting block is clearance-matched with the limiting groove. A protrusion is provided on the upper part of the positioning plate.
[0008] Furthermore, chamfers are provided at the front and rear ends of the tool body near the edges of the channel.
[0009] Furthermore, the width of the annular groove is greater than the width of the groove of the workpiece to be welded.
[0010] Furthermore, the edge of the annular groove is provided with a chamfer, and the edges of the front and rear ends of the tooling body away from the channel are provided with chamfers.
[0011] The beneficial effects of the utility model are as follows: compared with the prior art, a welding gas shielded tooling is used. The steel pipe to be welded is placed in the tooling body, argon gas is initially filled in, the air in the pipe is discharged through the pores, and then welding is started. During the welding process, the tooling body can be rotated and adjusted as the welding position changes. After the base welding is completed, argon gas is filled in from the bottom pores to continue to protect the surface of the filling weld and prevent oxidation of the weld surface, thereby obtaining a pollution-free weld workpiece, improving welding efficiency and ensuring welding quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a schematic diagram of the structure of the first embodiment of the welding gas shielding tooling.
[0013] Figure 2 This is a schematic diagram of the structure of the second embodiment of the welding gas shielding tooling.
[0014] Figure 3 This is a schematic diagram of the structure of the third embodiment of the welding gas shielding tooling.
[0015] Figure 4 This is a schematic diagram of the structure of the installation state of the third embodiment of the welding gas shielding tooling.
[0016] Figure 5 It is a structural schematic diagram of positioning plate one.
[0017] Figure 6 It is a structural schematic diagram of positioning plate 2.
[0018] Figure 7 It is the structural schematic diagram of positioning plate three.
[0019] Among them: 1. tooling body; 11. air hole; 12. ring groove; 13. chamfer; 14. platform; 141. welding mouth; 15. limit groove; 16. clamping groove; 17. handle; 2. positioning plate; 21. limit block; 22. clamping block; 23. protrusion; 24. channel. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiment is only one embodiment of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of the utility model.
[0021] In order to make the objectives, technical solutions and advantages of the present application more clear, the present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0022] In the following description, references to "one embodiment", "an embodiment", "an example", "an example", etc. indicate that the embodiment or example described in this way may include specific features, structures, characteristics, properties, elements or limitations, but not every embodiment or example necessarily includes the specific features, structures, characteristics, properties, elements or limitations. In addition, repeated use of the phrase "according to one embodiment of the present application" may refer to the same embodiment, but does not necessarily refer to the same embodiment.
[0023] like Figure 1 As shown, it includes a tool body 1, the inner diameter of the tool body 1 is Φ115mm, the outer diameter is Φ125mm, the width is 50mm, and the thickness is 10mm. The tool body 1 is provided with a channel 24, and the tool body 1 is provided with an annular groove 12 along the channel 24. The width of the annular groove 12 is 30mm and the depth is 5mm. An air hole 11 is provided below the tool body 1, and the air hole 11 is a circular hole of Φ10mm. The top of the tool body 1 is cut away along the horizontal plane at an interval of 54mm in center diameter to form a platform 14, and a welding port 141 is provided on the platform 14.
[0024] Handles 17 are provided on both side edges of the tool body 1. During the welding process, the worker can use the handles 17 to rotate and adjust the tool body 1 according to the change of the welding position, thereby improving work efficiency.
[0025] A limiting groove 15 is provided in the middle of the lower end of the tooling body 1, and slots 16 are provided on both sides of the platform 14 near the welding port 141. A positioning plate 2 is provided in the tooling body 1, and blocks 22 are provided on both sides of the upper end of the positioning plate 2. The blocks 22 are clearance-matched with the slots 16. A limiting block 21 is provided at the lower end of the positioning plate 2. The limiting block 21 is clearance-matched with the limiting groove 15. A convex block 23 is provided on the upper part of the positioning plate 2. The thickness of the positioning plate 2 can be set to 1mm, 2mm, or 3mm, depending on the thickness and groove conditions of the steel pipe to be welded. The positioning plate 2 can accurately set the gap between the steel pipe cylinders to be welded in the tooling body 1, thereby ensuring the welding quality and improving the welding efficiency.
[0026] Chamfers 13 are provided at the edges of the front and rear ends of the tool body 1 near the channel 24, which can prevent workers from being cut when cleaning the tool body 1 and facilitate the assembly of the stainless steel pipe to be welded to improve work efficiency.
[0027] The width of the annular groove 12 is larger than the width of the groove of the workpiece to be welded, so that there is a certain space to fill the argon gas to protect the inner and outer surfaces of the weld during the welding process.
[0028] The edge of the annular groove 12 is provided with a chamfer 13, and the edges of the front and rear ends of the tooling body 1 away from the channel 24 are provided with a chamfer 13. After welding is completed, the tooling body 1 needs to be cleaned. By providing chamfers 13 on the edges of the annular groove 12 and the tooling body 1, it is possible to avoid cutting the workers during cleaning.
[0029] Workflow: first, place the positioning plate 2 into the tool body 1, place the steel pipe to be welded into the tool body 1 and press the positioning plate 2 against the ground, take out the positioning plate 2 and start filling with argon gas, the air in the pipe is discharged through the air hole 11, and then start welding. During the welding process, the tool body 1 can be rotated and adjusted by the handle 17 as the welding position changes. After the base welding is completed, argon gas is filled in from the bottom air hole 11 to continue to protect the surface of the filling weld and prevent oxidation of the weld surface.
[0030] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A welding gas shielding tool, characterized in that: It includes a tooling body, which is provided with a channel, the tooling body is provided with an annular groove along the channel, an air hole is provided at the bottom of the tooling body, the top of the tooling body is cut out along a horizontal plane to form a platform, a welding port is provided on the platform, a limiting groove is provided at the middle part of the lower end of the tooling body, and slots are provided on both sides of the platform close to the welding port, a positioning plate is provided in the tooling body, and blocks are provided on both sides of the upper end of the positioning plate, and the blocks are gapped with the slots, a limiting block is provided at the lower end of the positioning plate, and the limiting block is gapped with the limiting groove, and a protrusion is provided on the upper part of the positioning plate.
2. A welding gas shielding tool according to claim 1, characterized in that: Handles are arranged on the edges of both sides of the tool body.
3. A welding gas shielding tool according to claim 1, characterized in that: The front and rear ends of the tool body are provided with chamfers near the edges of the channel.
4. A welding gas shielding tool according to claim 1, characterized in that: The width of the annular groove is greater than the width of the groove of the workpiece to be welded.
5. A welding gas shielding tool according to claim 1, characterized in that: The edge of the annular groove is provided with a chamfer, and the edges of the front and rear ends of the tooling body away from the channel are provided with chamfers.