Heavy pipe submerged arc welding apparatus with adjustable welding current

Abstract

The utility model discloses heavy -duty steel pipe submerged -arc welding equipment of adjustable welding current, including base, the top of base is provided with two symmetrical mobile plate of setting, two mobile plate between jointly fixed connection has electric slide rail, electric slide rail is slidably connected with electric sliding block, the fixed connection of electric sliding block's end has the material box, the front side wall of material box is installed with the welding agent, the top of base is provided with the lifting mechanism for lifting material box, be provided with the stirring mechanism for stirring the welding agent in material box, the stirring mechanism includes the rotary rod of rotary connection between the bottom and the inner top in material box, the fixed connection of the lateral wall of rotary rod has multiple groups equal interval to set up stirring vane. The utility model discloses reasonable in structure, through setting up stirring mechanism, when welding, stirring vane rotates, realizes the stirring of the welding agent in material box, avoids the influence of the uniformity of unloading of accumulation.

Description

Technical Field

[0001] This utility model relates to the field of steel pipe welding technology, and in particular to heavy-duty submerged arc welding equipment for steel pipes with adjustable welding current. Background Technology

[0002] In modern industrial production, heavy steel pipes are widely used in many key areas such as oil and gas pipelines, large building structural supports, and shipbuilding. These applications place extremely stringent requirements on the quality and performance of heavy steel pipes. Welding, as the core link determining the quality of heavy steel pipes, is of paramount importance. Submerged arc welding, with its inherent advantages such as stable welding quality, high welding productivity, and minimal arc light and smoke, has become the primary welding method in the fabrication of important steel structures.

[0003] In the existing technology, traditional heavy-duty submerged arc welding equipment for steel pipes has significant drawbacks. For example, in traditional submerged arc welding equipment, the welding flux in the feed box is delivered to the weld seam of the steel pipe before welding. However, the traditional submerged arc welding feed box has a simple structure, and a large amount of welding flux accumulates in the feed box during use, which can easily cause blockage of the feed port, affecting the uniformity of the feed and thus affecting the welding quality. Therefore, this utility model proposes a heavy-duty submerged arc welding equipment for steel pipes with adjustable welding current to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an adjustable welding current heavy-duty submerged arc welding device for steel pipes.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A heavy-duty submerged arc welding equipment for steel pipes with adjustable welding current includes a base. Two symmetrically arranged movable plates are positioned above the base. An electric slide rail is fixedly connected between the two movable plates. An electric slider is slidably connected to the electric slide rail. A material box is fixedly connected to the end of the electric slider. A welding machine is mounted on the front side wall of the material box. A lifting mechanism for raising and lowering the material box is positioned above the base. A stirring mechanism for stirring the welding flux is provided inside the material box. The stirring mechanism includes a rotating rod rotatably connected between the bottom and top of the material box. Multiple sets of equally spaced stirring blades are fixedly connected to the side wall of the rotating rod.

[0007] Preferably, the lower end of the material box is provided with a discharge pipe communicating with it, the lower end of the material box is equipped with a welding head that is electrically connected to the welding machine, and the side wall of the material box is equipped with a feed pipe communicating with it.

[0008] Preferably, the lifting mechanism includes a threaded rod rotatably connected to the upper end of the base, and fixed blocks are fixedly connected to the side walls of both moving plates. The threaded rod passes through one of the fixed blocks and is threadedly connected to it. A motor is fixedly connected to the lower end of the base, and the output shaft end of the motor is fixedly connected to the lower end of the threaded rod.

[0009] Preferably, a limiting rod is fixedly connected to the upper end of the base, and the limiting rod passes through another fixed block and is slidably connected to it.

[0010] Preferably, a rack is fixedly connected between the two movable plates, and a gear that meshes with the rack is fixedly sleeved on the upper end of the rotating rod.

[0011] Preferably, the lower end of the base is fixedly connected to four support legs, which are arranged in a rectangular pattern.

[0012] Compared with the prior art, the advantages of this utility model are as follows:

[0013] 1. By setting up a stirring mechanism, during welding, the electric slide rail is driven to move the electric slider, thereby moving the material box and welding machine, as well as the welding head and discharge pipe. During the welding process, the discharge pipe feeds the welding flux into the material box, and the welding machine and welding head are used for welding. As the material box moves, it drives the stirring mechanism and gears to move. The gears move on the rack, and under the action of the rack, the gears rotate, thereby driving the rotating rod and stirring blades to rotate, so as to stir the welding flux in the material box and avoid accumulation that affects the uniformity of feeding.

[0014] 2. By setting up a lifting mechanism, the output shaft of the drive motor rotates, which in turn drives the threaded rod to rotate, thereby moving the fixed block connected to it by the thread, and moving the moving plate, electric slide rail, material box and welding machine. This allows for the adjustment of the height of the welding machine, making it easier to weld pipes of different diameters and greatly improving the practicality of the device. Attached Figure Description

[0015] Figure 1 This is a front view of the heavy-duty submerged arc welding equipment for steel pipes with adjustable welding current proposed in this utility model.

[0016] Figure 2 This is a sectional perspective view of the heavy-duty submerged arc welding equipment for steel pipes with adjustable welding current proposed in this utility model.

[0017] Figure 3 This is a bottom-view perspective view of the heavy-duty submerged arc welding equipment for steel pipes with adjustable welding current proposed in this utility model.

[0018] Figure 4This is a top perspective view of the heavy-duty submerged arc welding equipment for steel pipes with adjustable welding current proposed in this utility model.

[0019] Figure 5 for Figure 1 Enlarged view of the structure at point A in the image;

[0020] Figure 6 for Figure 2 Enlarged view of the structure at point B in the image.

[0021] In the diagram: 1. Base, 2. Limiting rod, 3. Fixing block, 4. Moving plate, 5. Support leg, 6. Threaded rod, 7. Motor, 8. Rack, 9. Electric slide rail, 10. Material box, 11. Welding machine, 12. Discharge pipe, 13. Welding head, 14. Gear, 15. Mixing blade, 16. Rotating rod. Detailed Implementation

[0022] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0023] Reference Figure 1-6 A heavy-duty submerged arc welding equipment for steel pipes with adjustable welding current includes a base 1. Two symmetrically arranged movable plates 4 are arranged above the base 1. An electric slide rail 9 is fixedly connected between the two movable plates 4. An electric slider is slidably connected to the electric slide rail 9. A material box 10 is fixedly connected to the end of the electric slider. A welding machine 11 is installed on the front side wall of the material box 10. A lifting mechanism for raising and lowering the material box 10 is arranged above the base 1. A stirring mechanism for stirring the welding flux is arranged inside the material box 10. The stirring mechanism includes a rotating rod 16 rotatably connected between the bottom and top of the material box 10. Multiple sets of equally spaced stirring blades 15 are fixedly connected to the side wall of the rotating rod 16. A rack 8 is fixedly connected between the two movable plates 4. A gear 14 that meshes with the rack 8 is fixedly sleeved at the upper end of the rotating rod 16.

[0024] Specifically, the lower end of the material box 10 is provided with a discharge pipe 12 connected thereto, the lower end of the material box 10 is equipped with a welding head 13 electrically connected to the welding machine 11, and the side wall of the material box 10 is equipped with a feed pipe connected thereto.

[0025] Specifically, the lifting mechanism includes a threaded rod 6 rotatably connected to the upper end of the base 1, and fixed blocks 3 fixedly connected to the side walls of the two moving plates 4. The threaded rod 6 passes through one of the fixed blocks 3 and is threadedly connected to it. A motor 7 is fixedly connected to the lower end of the base 1, and the output shaft end of the motor 7 is fixedly connected to the lower end of the threaded rod 6. A limit rod 2 is fixedly connected to the upper end of the base 1. The limit rod 2 passes through the other fixed block 3 and is slidably connected to it. When it is necessary to adjust the welding current, it can be adjusted by the controller on the welding machine 11. The limit rod 2 can limit the moving plate 4 and improve its movement stability.

[0026] Specifically, the lower end of the base 1 is fixedly connected to four support legs 5, which are arranged in a rectangular shape.

[0027] In use of this invention, during welding, the pipe is first placed horizontally on the base 1 and fixed with a clamp. Then, the electric slide rail 9 is driven, moving the electric slider, which in turn moves the material box 10 and the welding machine 11, as well as the welding head 13 and the discharge pipe 12. During welding, the discharge pipe 12 dispenses welding flux from the material box 10. Welding is then performed using the welding machine 11 and the welding head 13. As the material box 10 moves, it drives the stirring mechanism and the gear 14. The gear 14 moves on the rack 8, and under the action of the rack 8, the gear... Rotation of motor 14 drives rotation of rotating rod 16 and stirring blade 15, thereby stirring the welding flux in material box 10 to prevent accumulation and affect the uniformity of material feeding. The output shaft of drive motor 7 rotates, driving threaded rod 6 to rotate, thereby moving fixed block 3 connected to it by thread, and moving moving plate 4, electric slide rail 9, material box 10 and welding machine 11 to move, thereby adjusting the height of welding machine 11 to facilitate welding of pipes of different diameters. When it is necessary to adjust the welding current, it can be adjusted through the controller on welding machine 11.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A heavy-duty submerged arc welding machine for steel pipes with adjustable welding current, comprising a base (1), characterized in that, Two symmetrically arranged movable plates (4) are provided above the base (1). An electric slide rail (9) is fixedly connected between the two movable plates (4). An electric slider is slidably connected on the electric slide rail (9). A material box (10) is fixedly connected to the end of the electric slider. A welding machine (11) is installed on the front side wall of the material box (10). A lifting mechanism for raising and lowering the material box (10) is provided above the base (1). A stirring mechanism for stirring the welding flux is provided inside the material box (10). The stirring mechanism includes a rotating rod (16) rotatably connected between the bottom and top of the material box (10). Multiple sets of equally spaced stirring blades (15) are fixedly connected to the side wall of the rotating rod (16).

2. The heavy-duty submerged arc welding equipment for adjustable welding current of steel pipes according to claim 1, characterized in that, The lower end of the material box (10) is provided with a discharge pipe (12) connected thereto, and the lower end of the material box (10) is equipped with a welding head (13) electrically connected to the welding machine (11). The side wall of the material box (10) is equipped with a feed pipe connected thereto.

3. The heavy-duty submerged arc welding equipment for adjustable welding current of steel pipes according to claim 2, characterized in that, The lifting mechanism includes a threaded rod (6) rotatably connected to the upper end of the base (1), and fixed blocks (3) are fixedly connected to the side walls of the two moving plates (4). The threaded rod (6) passes through one of the fixed blocks (3) and is threadedly connected to it. A motor (7) is fixedly connected to the lower end of the base (1), and the output shaft end of the motor (7) is fixedly connected to the lower end of the threaded rod (6).

4. The heavy-duty submerged arc welding equipment for adjustable welding current of steel pipes according to claim 3, characterized in that, The upper end of the base (1) is fixedly connected to a limiting rod (2), which passes through another fixed block (3) and is slidably connected to it.

5. The heavy-duty submerged arc welding equipment for adjustable welding current of steel pipes according to claim 4, characterized in that, A rack (8) is fixedly connected between the two movable plates (4), and a gear (14) that meshes with the rack (8) is fixedly sleeved on the upper end of the rotating rod (16).

6. The heavy-duty submerged arc welding equipment for adjustable welding current of steel pipes according to claim 5, characterized in that, The lower end of the base (1) is fixedly connected to four support legs (5), which are arranged in a rectangular shape.

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