Thick plate narrow-gap submerged-arc welding device
By designing a thick plate narrow gap submerged arc welding device for ordinary submerged arc welding machines, the problems of difficult operation and expensive equipment for special narrow gap welding machines are solved, and the convenience and cost reduction of thick plate narrow gap welding are achieved.
Patent Information
- Application Number
- CN202421483737.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-27
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-06-27
AI Technical Summary
The existing special narrow gap welding machine is difficult to operate, has high requirements for welder skills, and is expensive in equipment and has high maintenance costs.
A thick plate narrow gap submerged arc welding device is designed, including a conductive rod and a conductive nozzle, which is connected by bolts and the conductive rod is connected to an ordinary submerged arc welding machine to realize narrow gap grave welding.
It enables ordinary submerged arc welding machines to achieve thick plate narrow gap welding, which is easy to operate, and reduces equipment costs and maintenance costs.
Smart Images
Figure CN222790845U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to welding equipment tooling in the production process of pressure vessel equipment, in particular to a welding work, specifically a thick plate narrow gap submerged arc welding device used for realizing thick plate narrow gap welding on a common submerged arc welding machine. Background Art
[0002] With the development of the chemical industry, pressure vessels are facing the situation of increasingly larger equipment and increasingly harsh working conditions. At the same time, the demand for thick-walled equipment is also increasing. In the production of thick-walled pressure vessels, how to weld welds is also a difficult problem.
[0003] When encountering thick plate welding, the usual welding process will use narrow gap groove welding, and achieving thick plate narrow gap welding requires a special narrow gap welder.
[0004] Special narrow gap welding machines can achieve narrow gap welding of thick plates, but they also have some disadvantages. First, the operation is difficult and requires high skills of welders. Second, the welding equipment is expensive, and once it is damaged, the maintenance cost is extremely high. Utility Model Content
[0005] The utility model aims to design a tooling that can be used on a common submerged arc welding machine to realize narrow gap welding of thick plates, aiming at the problems that the existing special narrow gap welding machines are difficult to operate, have high skill requirements for welders, are expensive welding equipment, and have extremely high maintenance costs once damage occurs.
[0006] The technical solution of the utility model is:
[0007] A thick plate narrow gap submerged arc welding device is characterized in that it comprises a conductive rod, a conductive nozzle and bolts, wherein the conductive nozzle and the conductive rod are connected by bolts; the head of the conductive rod is cylindrical, and the cylindrical head is processed with a thread connected to a submerged arc welding machine; the rod body of the conductive rod is flat, the tail structure is narrowed, and is processed with 4 bolt holes for connecting with the conductive nozzle, and a welding wire channel is passed through in the axial direction of the conductive rod; the conductive nozzle is flat with a slot at one end, and 4 bolt holes are also processed on the slotted end, and a welding wire channel is also passed through in the axial direction of the conductive nozzle.
[0008] The other end of the conductive nozzle is in a conical structure.
[0009] The conductive rod is a brass component.
[0010] The conductive nozzle is a copper component.
[0011] The conductive nozzle and the conductive rod are fastened by bolts, and a gap is left between them to prevent the welding wire channel from being blocked. The conductive rod is connected to the ordinary submerged arc welding machine by threads, and after installation, the ordinary submerged arc welding machine can realize the function of narrow gap groove welding.
[0012] Beneficial effects of the utility model:
[0013] The utility model can be used on a common submerged arc welding machine to realize the narrow gap welding of thick plates, and the installation is convenient and quick, and the operation is easy to master.
[0014] The utility model solves the problem that a special narrow gap welding machine is too expensive and difficult to operate. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a three-dimensional view of the conductive rod of the utility model.
[0016] Figure 2 It is a three-dimensional view of the conductive nozzle of the utility model.
[0017] Figure 3 It is an assembly combination schematic diagram of the utility model.
[0018] Figure 4 It is a schematic diagram of a welding example of the utility model.
[0019] In the figure: 1 is a conductive rod, 2 is a conductive nozzle, 3 is a thread, 4 is a bolt hole, 5 is a welding wire channel, 6 is a tapered structure, and 7 is a screw. DETAILED DESCRIPTION
[0020] The technical solution of the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation examples.
[0021] like Figure 1-4 shown.
[0022] A thick plate narrow gap submerged arc welding device, comprising a brass conductive rod 1, a copper conductive tip 2 and four bolts, wherein the conductive tip 2 and the conductive rod 1 are connected by bolts; the head of the conductive rod 1 is cylindrical, and the cylindrical head is processed with a thread 3 connected to a submerged arc welding machine; the rod body of the conductive rod 1 is flat, the tail structure is narrowed, and four bolt holes 4 for connecting with the conductive tip are processed, such as Figure 1 As shown, there is a welding wire passage 5 passing through the axial direction of the conductive rod; the conductive tip 2 is a flat shape with a slot at one end, and four bolt holes 4 are also processed on the slotted end, and the other end is a conical structure 6. The conductive tip 2 is also provided with a welding wire passage 5 passing through the axial direction. Figure 2 The conductive rod 1 and the conductive nozzle 2 are assembled into one piece by means of a screw rod 7. Figure 3 shown.
[0023] Welding example.
[0024] like Figure 4 Take the welding of a test plate with a thickness of 160 mm as an example, the groove is used with a gap of 16 mm and a groove angle of 6°. Figure 4 , welding is performed by adding a pad strip at the bottom of the groove. Since the diameter of the ordinary submerged arc welding conductive rod is a cylinder greater than 18 mm, it is impossible to enter the groove for welding. However, the welding device provided by the utility model can smoothly penetrate into the bottom of the groove to complete the welding task.
[0025] The parts not involved in the present invention are the same as the prior art or can be implemented by using the prior art.
Claims
1. A thick plate narrow gap submerged arc welding device, characterized by: It comprises a conductive rod (1), a conductive nozzle (2) and four bolts, wherein the conductive nozzle (2) and the conductive rod (1) are connected by bolts; the head of the conductive rod (1) is cylindrical, and the cylindrical head is processed with a thread (3) connected to a submerged arc welding machine; the rod body of the conductive rod (1) is flat, the tail structure is narrowed, and is processed with four bolt holes (4) for connecting to the conductive nozzle; the conductive rod has a welding wire passage passing through in the axial direction; the conductive nozzle (2) is flat with a slot at one end, and the slotted end is also processed with four bolt holes (4); the conductive nozzle (2) is also provided with a welding wire passage passing through in the axial direction.
2. The thick plate narrow gap submerged arc welding device according to claim 1 is characterized in that: The other end of the conductive nozzle (2) has a conical structure.
3. The thick plate narrow gap submerged arc welding device according to claim 1 is characterized in that: The conductive rod (1) is a brass component.
4. The thick plate narrow gap submerged arc welding device according to claim 1 is characterized in that: The conductive nozzle (2) is a copper component.