Steel structure narrow gap welding equipment

Abstract

The utility model relates to the technical field of steel structure welding, in particular to steel structure narrow gap welding equipment which comprises a pipe body, a first upper ring, a second upper ring, a first lower ring and a second lower ring and further comprises threaded rods, an annular sliding groove, a sliding block and a positioning ring, the second upper ring is arranged on the first upper ring, and the threaded rods are connected to the first upper ring and the second upper ring in a threaded mode. A first lower ring is fixedly connected to the lower portion of the first upper ring, a sliding block is arranged on the first lower ring and the second lower ring in a sliding mode, a positioning ring is arranged on one side of the sliding block, and the annular sliding groove, the sliding block and the positioning ring form a rotating assembly used for rotating the angle of the welding gun. The positioning assembly can be suitable for installation of steel structure pipe bodies with different diameters, the ring body composed of the first upper ring and the second upper ring can be opened when an obstacle exists above the pipe bodies and the pipe bodies cannot be directly installed in a sleeved mode, and therefore installation is convenient, the rotating assembly is provided with a supporting point with the function of changing the welding angle and the welding position in a rotating mode, and installation is convenient. Therefore, stable welding is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of steel structure welding technology, and in particular to a narrow gap welding device for steel structures. Background Technology

[0002] During the welding process of steel structures, weld seams often occur due to various factors. The gaps between weld seams are small, which requires high technical skills from welding workers.

[0003] Existing narrow gap welding generally uses arc welding. The welding rod is aligned with the gap, and then the welding torch is used to melt the welding rod. After the welding liquid enters the gap, the gap can be welded. However, during the welding process, the welding torch and welding rod need to be swung back and forth to ensure a tight weld. Swinging requires a high level of skill from the welder. The welding torch must be held tightly during the welding process. Less experienced workers find it difficult to ensure stable swinging during welding.

[0004] To address the issue of welding failure caused by the inexperienced workers struggling to maintain stable welding torch oscillation during narrow-gap welding, a support structure that can be rotated and is easy to install is designed to overcome this problem. Utility Model Content

[0005] To overcome the problem that less experienced workers have difficulty maintaining stable welding torch oscillation during narrow-gap welding, which can lead to welding failures.

[0006] The technical solution of this utility model is as follows: a narrow gap welding device for steel structures, including a pipe body, an upper ring 1, an upper ring 2, a lower ring 1 and a lower ring 2, and also including a threaded rod, an annular groove, a slider and a positioning ring. The upper ring 1 is provided with the upper ring 2, and the upper ring 1 and the upper ring 2 are both threadedly connected to the threaded rod. The lower ring 1 is fixedly connected to the lower part of the upper ring 1, and the lower ring 2 is fixedly connected to the lower part of the upper ring 2. The lower ring 1 and the lower ring 2 are both provided with an annular groove, which is divided into two parts. One part of the annular groove is fixedly connected to the lower ring 1, and the other part is fixedly connected to the lower ring 2. The slider is slidably arranged on the lower ring 1 and the lower ring 2. A positioning ring is provided on one side of the slider. The upper ring 1, the upper ring 2, the lower ring 1 and the lower ring 2 and the threaded rod constitute a positioning component for installing the device. The annular groove, the slider and the positioning ring constitute a rotating component for rotating the welding torch angle.

[0007] Preferably, upper ring one and upper ring two form a ring body. The ring body is installed according to the welding position. The threaded rod is threaded onto the ring body and is used to fasten the connection between the ring body and the pipe body. The whole formed by lower ring one and lower ring two serves as a platform for installing the annular slide groove. The welding torch can rotate longitudinally on the positioning ring and complete the lateral rotation by sliding the slider on the annular slide groove. The positioning component can quickly install the equipment on the pipe body to be welded. By adjusting the threaded rod, it is suitable for the installation of steel structure pipes of different diameters. When there are obstacles above the pipe body and it is not possible to directly install it, the ring body formed by upper ring one and upper ring two can also be opened to facilitate installation. The rotating component has a support point that can rotate to change the welding angle and welding position, thereby facilitating stable welding.

[0008] Preferably, a rubber pad is fixedly connected to one end of the threaded rod, and a handle is fixedly connected to the other end of the threaded rod. The handle has anti-slip texture. The rubber pad is used to increase friction and ensure a tight connection. The anti-slip texture of the handle makes it easier to turn the threaded rod.

[0009] Preferably, the upper ring 1 and the upper ring 2 are rotatably connected by the rotating shaft 3, and the lower ring 1 and the lower ring 2 are rotatably connected by the rotating shaft 4. Rotating the upper ring 2 opens the ring body, and at the same time as rotating the upper ring 2, the lower ring 2 rotates and opens simultaneously.

[0010] Preferably, the first upper ring has a slot, and one end of the second upper ring has a protrusion. The protrusion on the second upper ring matches the slot on the first upper ring. The protrusion on the second upper ring has a locking block, and a spring is provided below the locking block. The slot on the first upper ring has a hole that matches the locking block. The protrusion on the second upper ring matches the slot on the first upper ring. This is used to connect the second upper ring and the first upper ring. The locking block is used to fasten the connection between the second upper ring and the first upper ring. When the second upper ring and the first upper ring are reconnected, the spring pops out the locking block, and the locking block engages with the matching hole on the slot of the first upper ring.

[0011] Preferably, a connecting arm is provided between the slider and the positioning ring. One end of the connecting arm is rotatably connected to the slider via a rotating shaft, and the other end of the connecting arm is rotatably connected to the positioning ring via a rotating shaft. The welding torch can rotate longitudinally on the positioning ring and complete the lateral rotation by sliding the slider on the annular groove, thereby facilitating the adjustment of the welding torch angle.

[0012] Preferably, the lower end of the slider is provided with a protrusion, and the annular groove is provided with an annular slot. The protrusion on the slider is adapted to the annular slot in the annular groove, thereby preventing the slider from disengaging from the annular groove during the sliding process.

[0013] Preferably, the positioning ring is placed at the weld seam of the pipe body. The positioning ring is used to hold the welding gun and serves as a rotation support point for the welding gun, thereby making the welding more stable.

[0014] The beneficial effects of this utility model are:

[0015] 1. The positioning assembly can quickly install the equipment on the pipe to be welded. By adjusting the threaded rod, it is suitable for the installation of steel structure pipes of different diameters. When there are obstacles above the pipe and it is not possible to directly install it, the ring body composed of upper ring one and upper ring two can be opened to facilitate installation.

[0016] 2. The welding torch can rotate longitudinally on the positioning ring and slide laterally on the annular groove via a slider, thus facilitating the adjustment of the welding torch angle. This rotating component has a support point that can rotate to change the welding angle and welding position, thereby facilitating stable welding. Attached Figure Description

[0017] Figure 1 The diagram shown is a three-dimensional structural schematic of the steel structure narrow gap welding equipment and the pipe body of this utility model.

[0018] Figure 2 The diagram shown is a three-dimensional structural schematic of the steel structure narrow gap welding equipment and rubber pad of this utility model.

[0019] Figure 3 The diagram shown is a three-dimensional structural schematic of the steel structure narrow gap welding equipment and the clamping block of this utility model.

[0020] Figure 4 The diagram shown is a three-dimensional structural schematic of the steel structure narrow gap welding equipment and slider of this utility model.

[0021] Figure 5 This invention relates to a narrow-gap welding equipment for steel structures. Figure 4 A magnified structural diagram of point A.

[0022] Explanation of reference numerals in the attached drawings: 1. Pipe body; 2. Upper ring one; 3. Upper ring two; 4. Lower ring one; 5. Lower ring two; 6. Threaded rod; 7. Annular groove; 8. Slider; 9. Positioning ring; 10. Rotating shaft one; 11. Connecting arm; 12. Rotating shaft two; 13. Rotating shaft three; 14. Handle; 15. Rubber pad; 16. Locking block; 17. Rotating shaft four. Detailed Implementation

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

[0024] Please see Figures 1-5This utility model provides an embodiment of a narrow-gap welding device for steel structures, comprising a pipe body 1, an upper ring 2, an upper ring 3, a lower ring 4, and a lower ring 5, and further comprising a threaded rod 6, an annular groove 7, a slider 8, and a positioning ring 9. The upper ring 2 is provided with the upper ring 3, and both the upper ring 2 and the upper ring 3 are threadedly connected to the threaded rod 6. The lower ring 4 is fixedly connected below the upper ring 2, and the lower ring 5 is fixedly connected below the upper ring 3. Both the lower ring 4 and the lower ring 5 are provided with an annular groove 7, which is divided into two parts. One part of the annular groove 7 is fixedly connected to the lower ring 4, and the other part is fixedly connected to the lower ring 5. A slider 8 is slidably disposed on the lower ring 4 and the lower ring 5, and a positioning ring 9 is provided on one side of the slider 8. The upper ring 2, upper ring 3, lower ring 4, lower ring 5, and threaded rod 6 constitute a positioning assembly for installing the device. The annular groove 7... The slider 8 and the positioning ring 9 constitute a rotating assembly for rotating the welding torch angle. The upper ring 2 and the upper ring 3 form a ring body, which is installed according to the welding position. The threaded rod 6 is threaded onto the ring body and is used to fasten the connection between the ring body and the pipe body 1. The lower ring 4 and the lower ring 5 form a platform for installing the annular groove 7. The welding torch can rotate longitudinally on the positioning ring 9 and rotate laterally by sliding the slider 8 on the annular groove 7. The positioning assembly can quickly install the equipment on the pipe body 1 to be welded. By adjusting the threaded rod 6, it is suitable for the installation of steel structure pipe bodies 1 with different diameters. When there are obstacles above the pipe body 1 and it is not possible to directly install it, the ring body composed of the upper ring 2 and the upper ring 3 can be opened to facilitate installation. The rotating assembly has a support point that can rotate to change the welding angle and welding position, thus facilitating stable welding.

[0025] Please see Figure 2 and Figure 3 In this embodiment, a rubber pad 15 is fixedly connected to one end of the threaded rod 6, and a handle 14 is fixedly connected to the other end of the threaded rod 6. The handle 14 has anti-slip textures. The rubber pad 15 is used to increase friction and ensure a tight connection. The anti-slip textures of the handle 14 facilitate turning the threaded rod 6. The upper ring 1 2 and the upper ring 2 3 are rotatably connected via a rotating shaft 3 13, and the lower ring 1 4 and the lower ring 2 5 are rotatably connected via a rotating shaft 4 17. Rotating the upper ring 2 3 opens the ring body. At the same time as rotating the upper ring 2 3, the lower ring 2 5 also rotates and opens. The upper ring 1 2 has a retaining groove. One end of ring 2 3 has a protrusion. The protrusion on ring 2 3 is adapted to the slot on ring 1 2. The protrusion on ring 2 3 has a locking block 16. A spring is provided below the locking block 16. The slot on ring 1 2 has a hole adapted to the locking block 16. The protrusion on ring 2 3 is adapted to the slot on ring 1 2. This is used to connect ring 2 3 and ring 1 2. The locking block 16 is used to fasten the connection between ring 2 3 and ring 1 2. When ring 2 3 and ring 1 2 are reconnected, the spring pops out the locking block 16, and the locking block 16 engages with the matching hole on the slot of ring 1 2.

[0026] Please see Figure 1 and Figure 4 In this embodiment, a connecting arm 11 is provided between the slider 8 and the positioning ring 9. One end of the connecting arm 11 is rotatably connected to the slider 8 via a rotating shaft 10, and the other end of the connecting arm 11 is rotatably connected to the positioning ring 9 via a rotating shaft 12. The welding torch can rotate longitudinally on the positioning ring 9 and laterally by sliding the slider 8 on the annular groove 7, thereby facilitating the adjustment of the welding torch angle. The lower end of the slider 8 is provided with a protrusion, and the annular groove 7 is provided with an annular slot. The protrusion on the slider 8 is adapted to the annular slot in the annular groove 7, and the protrusion on the slider 8 is adapted to the annular slot in the annular groove 7, thereby preventing the slider 8 from disengaging from the annular groove 7 during the sliding process. The positioning ring 9 is set at the weld joint of the pipe body 1. The positioning ring 9 is used to place the welding torch and serves as a rotation support point for the welding torch, thereby making the welding more stable.

[0027] During use, this equipment is suitable for welding narrow gaps in pipe body 1. Upper ring 1 (2) and upper ring 2 (3) form a ring body. The ring body is installed according to the welding position. Threaded rod 6 is threaded onto the ring body and is used to tighten the connection between the ring body and pipe body 1. Rubber pad 15 increases friction to ensure a tight connection. Handle 14 facilitates turning threaded rod 6. Upper ring 1 (2) and upper ring 2 (3) are rotatably connected via rotating shaft 3 (13). When there are obstacles above pipe body 1, direct installation is not possible. Press down on the locking block 16 to release the locking connection between upper ring 1 (2) and upper ring 2 (3), then rotate upper ring 2 (3) to open the ring body. The ring can be fitted onto the pipe body 1, and then the upper ring 2 and upper ring 3 can be reconnected. Tightening the threaded rod 6 will install the ring onto the pipe body 1. Before welding, the welding torch is fitted onto the positioning ring 9. The positioning ring 9 serves as a support point for the welding torch. During welding, the welding torch can rotate longitudinally on the positioning ring 9 and slide laterally on the annular groove 7 via the slider 8, thus facilitating the adjustment of the welding torch angle. The lower ring 4 and lower ring 5 together form a platform for installing the annular groove 7. This rotating assembly has a support point that can rotate to change the welding angle and welding position, thus facilitating stable welding.

[0028] Through the above steps, the positioning assembly can quickly install the equipment on the pipe body 1 to be welded. By adjusting the threaded rod 6, it is suitable for the installation of steel structure pipe bodies 1 with different diameters. When there are obstacles above the pipe body 1 and it is not possible to directly install it, the ring body composed of upper ring 1 2 and upper ring 2 3 can be opened to facilitate installation. The welding torch can rotate longitudinally on the positioning ring 9 and complete the lateral rotation by sliding the slider 8 on the annular groove 7, which facilitates the adjustment of the welding torch angle. This rotating assembly has a support point that can rotate to change the welding angle and welding position, thus facilitating stable welding.

[0029] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A narrow-gap welding device for steel structures, comprising a pipe body (1), an upper ring one (2), an upper ring two (3), a lower ring one (4), and a lower ring two (5); characterized in that: It also includes a threaded rod (6), an annular groove (7), a slider (8), and a positioning ring (9). An upper ring 1 (2) is provided with an upper ring 2 (3). Both the upper ring 1 (2) and the upper ring 2 (3) are threadedly connected to the threaded rod (6). The lower ring 1 (4) is fixedly connected below the upper ring 1 (2), and the lower ring 2 (5) is fixedly connected below the upper ring 2 (3). Both the lower ring 1 (4) and the lower ring 2 (5) are provided with an annular groove (7). The annular groove (7) is divided into two parts. One part of the upper ring (2), the other part is fixedly connected to the lower ring (4), and the other part is fixedly connected to the lower ring (5). The lower ring (4) and the lower ring (5) are slidably provided with sliders (8). A positioning ring (9) is provided on one side of the slider (8). The upper ring (2), the upper ring (3), the lower ring (4), the lower ring (5) and the threaded rod (6) constitute a positioning assembly for installing equipment. The annular groove (7), the slider (8) and the positioning ring (9) constitute a rotating assembly for rotating the angle of the welding gun.

2. The narrow-gap welding equipment for steel structures according to claim 1, characterized in that: A rubber pad (15) is fixedly connected to one end of the threaded rod (6), and a handle (14) is fixedly connected to the other end of the threaded rod (6). The handle (14) has anti-slip texture.

3. The narrow-gap welding equipment for steel structures according to claim 2, characterized in that: Upper ring 1 (2) and upper ring 2 (3) are rotatably connected by rotating shaft 3 (13), and lower ring 1 (4) and lower ring 2 (5) are rotatably connected by rotating shaft 4 (17).

4. The narrow-gap welding equipment for steel structures according to claim 3, characterized in that: The upper ring 1 (2) has a slot, and one end of the upper ring 2 (3) has a protrusion. The protrusion on the upper ring 2 (3) is adapted to the slot on the upper ring 1 (2). The protrusion on the upper ring 2 (3) has a locking block (16). A spring is provided below the locking block (16). The slot on the upper ring 1 (2) has a hole adapted to the locking block (16).

5. The narrow-gap welding equipment for steel structures according to claim 4, characterized in that: A connecting arm (11) is provided between the slider (8) and the positioning ring (9). One end of the connecting arm (11) is rotatably connected to the slider (8) through a rotating shaft (10), and the other end of the connecting arm (11) is rotatably connected to the positioning ring (9) through a rotating shaft (12).

6. The narrow-gap welding equipment for steel structures according to claim 5, characterized in that: The lower end of the slider (8) is provided with a protrusion, and the annular groove (7) is provided with an annular slot. The protrusion of the slider (8) is adapted to the annular slot in the annular groove (7).

7. The narrow-gap welding equipment for steel structures according to claim 6, characterized in that: The positioning ring (9) is set at the weld joint of the pipe body (1) and is used to place the welding gun.

Images