Welding extrusion roller device for straight seam steel pipe

Abstract

The utility model provides a welding extrusion roller device for a straight seam steel pipe. The extrusion roller welding device for the straight seam steel pipe comprises a supporting table, a sliding groove is formed in the top of the supporting table, a sliding block is movably connected into the sliding groove in a sleeved mode, a welding machine is fixedly installed at the top of the sliding block, a turnover rod is movably connected to the top of the welding machine in a sleeved mode, and a welding gun is fixedly connected to one end of the turnover rod. According to the welding extrusion roller device for the straight seam steel pipe, the overturning rod is arranged, when the straight seam steel pipe is welded, the steel pipe is tightly clamped and fixed to the top of the supporting table, a welding machine is started at the moment, the steel pipe can be movably connected to the outer portion of a welding gun in a sleeved mode when moving, and welding is completed. Therefore, the welding gun can weld the horizontally moving steel pipe from the inside of the steel pipe, no welding seam remains when the steel pipe is clamped and fixed, the seamless welding effect of the steel pipe is achieved, and the welding strength of the straight seam steel pipe is improved.

Description

Technical Field

[0001] This utility model relates to the field of pressure roller devices, and more particularly to a welding extrusion roller device for straight seam steel pipes. Background Technology

[0002] In the production of straight seam steel pipes, steel strips or plates are first bent and deformed into circular, square, or other shapes. Then, the seams formed on both sides of the steel plate or strip are welded together to fix the pipe, thus producing the straight seam steel pipe. In some applications, welding is required inside the straight seam, necessitating welding from within the pipe itself. Existing technology has developed a weld-tracking submerged arc welding machine for the inner wall of straight seams to address this welding requirement. However, this device requires a significant amount of space inside the steel pipe, its application is severely limited by space constraints, and its development cost is high, making it unsuitable for the production and processing of straight seam steel pipes.

[0003] In existing technologies, such as the Chinese patent application CN209886870U entitled "A Welding Device for Straight Seam Steel Pipes," the device includes a frame, a work panel mounted on the frame, and a welding assembly slidably mounted on the work panel. The work panel has a positioning groove corresponding to the weld seam on the straight seam steel pipe to be welded. The welding assembly includes a sliding plate slidably mounted in the positioning groove. The upper end of the sliding plate is positioned above the positioning groove and has a welding torch fixedly mounted thereon. The lower end of the sliding plate is positioned below the positioning groove and has a nut fixedly mounted thereon. The frame has a lead screw that mates with the nut and a motor for driving the lead screw to rotate. This invention, in welding the inner weld seam of straight seam steel pipes, does not occupy excessive internal space of the steel pipe, avoiding space constraints and is particularly suitable for welding small-diameter straight seam steel pipes.

[0004] In the existing technology for welding straight seam steel pipes, the welding torch needs to move through the inner wall of the steel pipe, which requires a large gap to be left when the steel pipe is squeezed. This large gap leads to poor weld strength of the steel pipe.

[0005] Therefore, it is necessary to provide a welding extrusion roller device for straight seam steel pipes to solve the above-mentioned technical problems. Utility Model Content

[0006] This utility model provides a welding extrusion roller device for straight seam steel pipes, which solves the problem that because the welding torch needs to move through the inner wall of the steel pipe, a large gap needs to be reserved during the extrusion of the steel pipe, resulting in poor welding strength of the steel pipe when the gap is large.

[0007] To solve the above-mentioned technical problems, the present invention provides a welding extrusion roller device for straight seam steel pipes, including a support platform. A sliding groove is formed on the top of the support platform, and a sliding block is movably fitted inside the sliding groove. A welding machine is fixedly installed on the top of the sliding block, and a flipping rod is movably fitted on the top of the welding machine. A welding torch is fixedly connected to one end of the flipping rod, and a spring is fixedly connected to the bottom of one end of the flipping rod. A threaded rod is threadedly fitted inside the sliding block. A rotary motor is fixedly installed at the bottom of the support platform, and a conveying roller is fixedly fitted on the output shaft of the rotary motor. A limit sleeve is threadedly fitted on the top of the conveying roller. An adjustment mechanism is provided on the top of the support platform, a sliding mechanism is provided on the top of the support platform, and a moving mechanism is provided at the bottom of the support platform.

[0008] Preferably, the flipping rod and the support platform are parallel to each other, and the flipping rod is movably sleeved inside the conveying roller.

[0009] Preferably, one end of the spring is fixedly connected to the top of the welding machine, and the number of springs is three.

[0010] Preferably, the conveying rollers are movably sleeved on the top of the support platform, and the number of conveying rollers is three.

[0011] Preferably, the limiting sleeve and the support platform are parallel to each other, and the limiting sleeve is located directly above the rotary motor.

[0012] Preferably, the adjustment mechanism includes a positioning plate, which is fixedly connected to the top of the support platform. A threaded post is threaded inside the positioning plate, and a positioning frame is movably sleeved at one end of the threaded post. A pressing wheel is movably sleeved inside the positioning frame.

[0013] Preferably, the sliding mechanism includes a positioning groove, which is formed on the top of the support platform, and a sliding column is movably sleeved inside the positioning groove.

[0014] Preferably, the moving mechanism includes a support column, which is fixedly connected to the bottom of the support platform, and a sliding wheel is installed at the bottom of the support column.

[0015] Compared with related technologies, the welding extrusion roller device for straight seam steel pipes provided by this utility model has the following beneficial effects:

[0016] This utility model provides a welding extrusion roller device for straight seam steel pipes. By setting a flipping rod, when welding straight seam steel pipes, the steel pipe is tightly clamped and fixed on the top of the support platform. At this time, the welding machine is started, so that the steel pipe can be movably sleeved on the outside of the welding gun when it moves. This allows the welding gun to weld the horizontally moving steel pipe from the inside of the steel pipe, so that there is no weld seam left when the steel pipe is clamped and fixed, thereby achieving a seamless welding effect for the steel pipe, which improves the welding strength of the straight seam steel pipe.

[0017] By setting an adjustment mechanism, when steel pipes of different widths need to be clamped and fixed, the threaded column is rotated, so that the threaded column can drive the extrusion wheel to move through the positioning frame, thereby achieving the effect of adjusting the distance between the extrusion wheel and the conveying roller, thus bringing convenience to the clamping of steel pipes of different widths. Attached Figure Description

[0018] Figure 1 A schematic diagram of a preferred embodiment of the welding extrusion roller device for straight seam steel pipes provided by this utility model;

[0019] Figure 2 for Figure 1 A front view of the welding extrusion roller device for the straight seam steel pipe shown.

[0020] Figure 3 for Figure 1 A front view of the support platform in the welding extrusion roller device for the straight seam steel pipe shown.

[0021] Figure 4 for Figure 1 The front view of the welding machine in the welding extrusion roller device for the straight seam steel pipe shown.

[0022] The following are the labels in the diagram: 1. Support platform; 2. Sliding groove; 3. Sliding block; 4. Welding machine; 5. Tilting rod; 6. Welding torch; 7. Spring; 8. Threaded rod; 9. Rotary motor; 10. Conveying roller; 11. Limiting sleeve; 12. Adjusting mechanism; 121. Positioning plate; 122. Threaded column; 123. Positioning frame; 124. Extrusion wheel; 13. Sliding mechanism; 131. Positioning groove; 132. Sliding column; 14. Moving mechanism; 141. Support column; 142. Sliding wheel. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 ,in, Figure 1 A schematic diagram of a preferred embodiment of the welding extrusion roller device for straight seam steel pipes provided by this utility model; Figure 2 for Figure 1 A front view of the welding extrusion roller device for the straight seam steel pipe shown. Figure 3 for Figure 1 A front view of the support platform in the welding extrusion roller device for the straight seam steel pipe shown. Figure 4 for Figure 1The diagram shows a front view of the welding machine in the welding extrusion roller device for straight seam steel pipes. The welding extrusion roller device for straight seam steel pipes includes a support platform 1. A sliding groove 2 is formed on the top of the support platform 1. A sliding block 3 is movably fitted inside the sliding groove 2. A welding machine 4 is fixedly mounted on the top of the sliding block 3. A flipping rod 5 is movably fitted on the top of the welding machine 4. A welding torch 6 is fixedly connected to one end of the flipping rod 5. A spring 7 is fixedly connected to the bottom of one end of the flipping rod 5. A threaded rod 8 is threadedly fitted inside the sliding block 3. A rotary motor 9 is fixedly mounted on the bottom of the support platform 1. A conveying roller 10 is fixedly fitted on the output shaft of the rotary motor 9. A limit sleeve 11 is threadedly fitted on the top of the conveying roller 10. An adjustment mechanism 12 is provided on the top of the support platform 1. A sliding mechanism 13 is provided on the top of the support platform 1. A moving mechanism 14 is provided on the bottom of the support platform 1.

[0025] The flipping rod 5 is parallel to the support platform 1, and the flipping rod 5 is movably sleeved inside the conveying roller 10. By setting the flipping rod 5, when welding straight seam steel pipes, the steel pipe is tightly clamped and fixed on the top of the support platform 1. At this time, the welding machine 4 is started, so that the steel pipe can be movably sleeved on the outside of the welding gun 6 when it moves, so that the welding gun 6 can weld the horizontally moving steel pipe from the inside of the steel pipe. This results in no weld seam left when the steel pipe is clamped and fixed, thereby achieving a seamless welding effect for the steel pipe, which improves the welding strength of the straight seam steel pipe.

[0026] One end of the spring 7 is fixedly connected to the top of the welding machine 4, and there are three springs 7. By setting the springs 7, when welding steel pipes, multiple springs 7 can stretch one end of the flipping rod 5, so that the other end of the flipping rod 5 can drive the welding torch 6 to continuously press against the top of the inner wall of the steel pipe. This achieves the effect of continuous contact between the welding torch 6 and the inner wall of the steel pipe when the steel pipe moves horizontally, thereby achieving the effect of moving and welding the steel pipe.

[0027] The conveying rollers 10 are movably sleeved on the top of the support platform 1, and there are three conveying rollers 10. By setting the conveying rollers 10, when the steel pipe is being moved and welded, the rotary motor 9 is started, so that the rotary motor 9 can drive the steel pipe to move horizontally through the conveying rollers 10, thereby achieving the effect of moving and conveying the steel pipe after clamping and fixing, thus bringing convenience to the moving and welding of the steel pipe.

[0028] The limiting sleeve 11 is parallel to the support platform 1, and the limiting sleeve 11 is located directly above the rotary motor 9. By setting the limiting sleeve 11, when it is necessary to move and transport steel pipes of different thicknesses, the limiting sleeve 11 is rotated, so that the limiting sleeve 11 can move up and down on the top of the conveying roller 10, thereby achieving the height adjustment effect of the limiting sleeve 11. This allows the limiting sleeve 11 to limit steel pipes of different thicknesses, thereby avoiding the problem of up and down fluctuations when the steel pipes are moved and transported.

[0029] The adjustment mechanism 12 includes a positioning plate 121, which is fixedly connected to the top of the support platform 1. A threaded post 122 is threaded inside the positioning plate 121, and a positioning frame 123 is movably sleeved at one end of the threaded post 122. An extrusion wheel 124 is movably sleeved inside the positioning frame 123. By setting the adjustment mechanism 12, when it is necessary to clamp and fix steel pipes of different widths, the threaded post 122 is rotated, so that the threaded post 122 can drive the extrusion wheel 124 to move through the positioning frame 123, thereby achieving the effect of adjusting the distance between the extrusion wheel 124 and the conveying roller 10, thus bringing convenience to the clamping of steel pipes of different widths.

[0030] The sliding mechanism 13 includes a positioning groove 131, which is located on the top of the support platform 1. A sliding column 132 is movably sleeved inside the positioning groove 131. By setting the sliding mechanism 13, when the steel pipe is being moved and transported, the sliding column 132 can limit the horizontally moving steel pipe, thereby avoiding the problem of friction between the steel pipe and the top of the support platform 1 when the steel pipe is moving, thus improving the smoothness of the steel pipe movement and transport.

[0031] The moving mechanism 14 includes a support column 141, which is fixedly connected to the bottom of the support platform 1. A sliding wheel 142 is installed at the bottom of the support column 141. By setting up the moving mechanism 14, when the extrusion roller device is moving and conveying, the support platform 1 is pushed, so that the sliding wheel 142 can drive the support platform 1 to move horizontally through the support column 141, that is, drive the welding machine 4 to move horizontally, thereby achieving the effect of moving and conveying the extrusion roller device, and thus bringing convenience to the adjustment of the working position of the extrusion roller device.

[0032] The working principle of the welding extrusion roller device for straight seam steel pipes provided by this utility model is as follows:

[0033] Step 1: First, when welding straight seam steel pipes, the steel pipe is tightly clamped and fixed to the top of the support platform 1. Then, the welding machine 4 is started, allowing the steel pipe to move and be movably fitted onto the outside of the welding torch 6. This allows the welding torch 6 to weld the horizontally moving steel pipe from the inside, resulting in a seamless weld without any weld seam remaining when the steel pipe is clamped and fixed. This improves the welding strength of the straight seam steel pipe. During welding, multiple springs 7 stretch one end of the tilting rod 5, causing the other end of the tilting rod 5 to continuously press the welding torch 6 against the top of the inner wall of the steel pipe. This achieves a seamless weld between the welding torch 6 and the steel pipe during horizontal movement. The continuous contact with the inner wall achieves the effect of moving and welding the steel pipe. When moving and welding the steel pipe, the rotary motor 9 is started, which drives the steel pipe to move horizontally through the conveying roller 10. This achieves the effect of moving and conveying the steel pipe after clamping and fixing, thus facilitating the moving and welding of the steel pipe. When it is necessary to move and convey steel pipes of different thicknesses, the limiting sleeve 11 is rotated, which allows the limiting sleeve 11 to move up and down on the top of the conveying roller 10. This achieves the effect of adjusting the height of the limiting sleeve 11, allowing the limiting sleeve 11 to limit steel pipes of different thicknesses, thus avoiding the problem of up and down fluctuations during the moving and conveying of the steel pipe.

[0034] Step 2: When steel pipes of different widths need to be clamped and fixed, rotate the threaded column 122 so that the threaded column 122 can drive the extrusion roller 124 to move through the positioning frame 123, thereby achieving the effect of adjusting the distance between the extrusion roller 124 and the conveying roller 10, thus bringing convenience to clamping steel pipes of different widths. When the steel pipe is moved and conveyed, the sliding column 132 can limit the horizontally moving steel pipe, thus avoiding the problem of friction between the steel pipe and the top of the support platform 1 when the steel pipe moves, thereby improving the smoothness of the steel pipe movement and conveying. When the extrusion roller device is moved and conveyed, push the support platform 1 so that the sliding roller 142 can drive the support platform 1 to move horizontally through the support column 141, that is, drive the welding machine 4 to move horizontally, thereby achieving the effect of moving and conveying the extrusion roller device, thus bringing convenience to the adjustment of the working position of the extrusion roller device.

[0035] Compared with related technologies, the welding extrusion roller device for straight seam steel pipes provided by this utility model has the following beneficial effects:

[0036] By setting the flipping rod 5, when welding straight seam steel pipes, the steel pipe is tightly clamped and fixed on the top of the support platform 1. At this time, the welding machine 4 is started, so that the steel pipe can be movably sleeved on the outside of the welding gun 6 when it moves. This allows the welding gun 6 to weld the horizontally moving steel pipe from the inside of the steel pipe, so that there is no weld seam left when the steel pipe is clamped and fixed, thus achieving a seamless welding effect for the steel pipe, which improves the welding strength of the straight seam steel pipe.

[0037] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A welding extrusion roller device for straight seam steel pipes, comprising a support platform (1), characterized in that: The top of the support platform (1) is provided with a sliding groove (2), and a sliding block (3) is movably sleeved inside the sliding groove (2). A welding machine (4) is fixedly installed on the top of the sliding block (3). A flipping rod (5) is movably sleeved on the top of the welding machine (4). A welding gun (6) is fixedly connected to one end of the flipping rod (5). A spring (7) is fixedly connected to the bottom of one end of the flipping rod (5). A threaded rod (8) is threaded inside the sliding block (3). A rotary motor (9) is fixedly installed at the bottom of the support platform (1). A conveying roller (10) is fixedly sleeved on the output shaft of the rotary motor (9). A limit sleeve (11) is threaded on the top of the conveying roller (10). An adjustment mechanism (12) is provided on the top of the support platform (1). A sliding mechanism (13) is provided on the top of the support platform (1). A moving mechanism (14) is provided at the bottom of the support platform (1).

2. The welding extrusion roller device for straight seam steel pipes according to claim 1, characterized in that, The flipping rod (5) is parallel to the support platform (1), and the flipping rod (5) is movably sleeved inside the conveying roller (10).

3. The welding extrusion roller device for straight seam steel pipes according to claim 1, characterized in that, One end of the spring (7) is fixedly connected to the top of the welding machine (4), and there are three springs (7).

4. The welding extrusion roller device for straight seam steel pipes according to claim 1, characterized in that, The conveying roller (10) is movably sleeved on the top of the support platform (1), and there are three conveying rollers (10).

5. The welding extrusion roller device for straight seam steel pipes according to claim 1, characterized in that, The limiting sleeve (11) is parallel to the support platform (1), and the limiting sleeve (11) is located directly above the rotary motor (9).

6. The welding extrusion roller device for straight seam steel pipes according to claim 1, characterized in that, The adjustment mechanism (12) includes a positioning plate (121), which is fixedly connected to the top of the support platform (1). The positioning plate (121) has a threaded post (122) threaded inside, and a positioning frame (123) is movably connected to one end of the threaded post (122). A pressing wheel (124) is movably connected inside the positioning frame (123).

7. The welding extrusion roller device for straight seam steel pipes according to claim 1, characterized in that, The sliding mechanism (13) includes a positioning groove (131), which is located on the top of the support platform (1). A sliding column (132) is movably sleeved inside the positioning groove (131).

8. The welding extrusion roller device for straight seam steel pipes according to claim 1, characterized in that, The moving mechanism (14) includes a support column (141), which is fixedly connected to the bottom of the support platform (1), and a sliding wheel (142) is installed at the bottom of the support column (141).

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