Automatic welding training assembly welding tool for large-diameter pipeline

Abstract

The utility model relates to a pipeline welding training technical field, concretely relates to a kind of assembling and welding tool for large-diameter pipeline automatic welding training. Including two parallelly arranged supports, two supports fixedly connected, two supports one side upper middle part is provided with pipe bin, inner welding machine is located in pipe bin, pipe bin is fixedly connected with support, the end face of two supports on the side of pipe bin is uniformly provided with multiple guide assemblies, the end face of two supports on the side of pipe bin is uniformly provided with multiple lifting assemblies, lifting assembly is set in dislocation with guide assembly. By setting axial guide roller, it is convenient to make the first pipeline and the second pipeline move in axial direction, realize pipe mouth pre-alignment, reduce manual adjustment step. The layout of axial guide roller shaft center and pipe bin shaft center is perpendicular, ensure that pipeline moves along preset path, avoid lateral deviation.

Description

Technical Field

[0001] This utility model relates to the field of pipeline welding training technology, specifically to a welding fixture for automatic welding training of large-diameter pipelines. Background Technology

[0002] Since the establishment of the national pipeline network, automatic welding technology has developed rapidly, with internal welding combined with dual-gun external welding becoming the mainstream pipeline welding process. To meet the needs of on-site automatic welding construction and ensure welding quality, pre-job training for automatic welding operators is necessary, and pipe end assembly is an important part of this training process.

[0003] Because the automatic welding process requires high precision in pipe assembly, in previous automatic welding training, the inner welding machine needed a separate pipe bin and was placed on a steel pipe support during pipe assembly. Each time, the first steel pipe to be assembled had to be aligned with the pipe bin and firmly supported before the second steel pipe was hoisted by a gantry crane for assembly. Because the inner welding machine has a large inertia when moving back and forth, it causes the steel pipe support to shake during the movement. Moreover, the second steel pipe needs to be constantly adjusted by the gantry crane for assembly, which is time-consuming and results in low pipe assembly precision. In addition, there is a safety hazard that the inner welding machine may cause the support to overturn and tip over during the longitudinal movement of the pipe bin.

[0004] Therefore, it is necessary to innovate the assembly process in dual-gun automatic welding training to improve assembly accuracy and efficiency while reducing safety risks.

[0005] Patent document CN214988257U discloses a roller bracket for easy assembly and disassembly of idlers, comprising a base, a pair of central locking grooves, and a pair of external locking grooves. The pair of external locking grooves are located on the side away from the center point of the base, while the pair of central locking grooves are located on the side closer to the center point of the base. The surface of the external locking grooves facing the central locking grooves has side locking grooves. The surfaces of the central locking grooves facing the other central locking groove and facing the external locking grooves both have central locking grooves. A circular tube is welded around the perimeter of each central locking groove. This device cannot adjust the height of the supported object and is not suitable for pipe alignment operations.

[0006] Patent document CN215846691U discloses an auxiliary device for directional drilling of metal pipes, including a support adjustment device and a roller device. The support adjustment device includes a support adjustment base, an adjustment bolt, an angle iron support, a bearing bracket, and a rolling bearing. The bottom end of the adjustment bolt is connected to the support adjustment base, and the upper end of the adjustment bolt is connected to the bottom end of the angle iron support. Two sets of bearing brackets are positioned on the angle iron support, and the bearing brackets can slide relative to the angle iron support to adjust the distance between the two sets of bearing brackets. The rolling bearing is installed on the bearing bracket. The roller device includes a roller base, a roller bracket, and a roller. The roller bracket is installed on the roller base, and the roller is installed in the roller bracket. The support adjustment base is connected to the roller base as a whole through a connecting rod. The device includes a support adjustment mechanism and a roller device. The adjusting bolts of the support adjustment mechanism can adjust the height of the bearing bracket, thereby adjusting the height of the metal pipe positioned on the rolling bearing to meet the height requirements for pipe butt welding. The rotation of the rolling bearing then moves the bottom weld joint upwards, converting overhead welding to flat welding. After welding, the pipe height is lowered again by the adjusting bolts, allowing the metal pipe to rest on the rollers of the auxiliary device, facilitating the pipe's return and ensuring stability during the return process. However, this device cannot lift the entire pipe, making butt welding inconvenient. Utility Model Content

[0007] The main purpose of this utility model is to provide a welding fixture for facilitating the movement of the first and second pipes to be welded, facilitating the alignment of the first and second pipes to be welded, and enabling the internal welding machine in the pipe compartment to be moved into the first or second pipe to be welded for automatic welding training.

[0008] To achieve the above objectives, the technical solution provided by this utility model is as follows: A welding fixture for training large-diameter pipe automatic welding includes two parallel supports fixedly connected together. A pipe compartment is centrally located above one side of each support, with an inner welding machine situated within it. The pipe compartment is fixedly connected to the supports. Multiple guide components are mounted on opposite end faces of the two supports on one side of the pipe compartment. Each guide component includes a bracket fixedly connected to the support, with axial guide rollers rotatably connected within the bracket. The axis of the axial guide rollers is perpendicular to the axis of the pipe compartment, and the end of the axial guide roller closest to one of its supports is inclined upwards. After the pipe is supported by the axial guide rollers on both sides... To facilitate movement towards the tube silo, multiple lifting components are provided on the opposite end faces of the two supports on one side of the tube silo. The lifting components and guide components are staggered. Each lifting component includes a bracket fixedly connected to the support. The bracket includes an inclined plate. The end of the inclined plate closer to its support is inclined upward, and a support plate is fixed to the end of the inclined plate away from its support. A telescopic rod is fixed to the inclined plate. A mounting frame is detachably and fixedly connected to the telescopic end of the telescopic rod. A circumferential guide roller is installed inside the mounting frame. The axis of the circumferential guide roller is parallel to the axis of the tube silo. The mounting frame is slidably connected to the support plate.

[0009] Specifically, the two supports are fixedly connected by multiple connecting rods, which are perpendicular to the supports.

[0010] Specifically, the inclined plate is fixedly connected to the connecting rods on both sides.

[0011] Specifically, the tube compartment and the support are fixedly connected by multiple support rods.

[0012] Specifically, the inclined plate of the bracket is fixedly connected to the support plate by multiple stiffening plates.

[0013] Specifically, the pallet is perpendicular to the inclined plate.

[0014] Specifically, the axis of the telescopic rod is perpendicular to the inclined plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. By setting up axial guide rollers, the first and second pipes can move axially, achieving pre-alignment of the pipe ends and reducing manual adjustment steps. The layout of the axial guide rollers with their axis perpendicular to the pipe magazine axis ensures that the pipes move along the preset path and avoids lateral deviation.

[0016] 2. The telescopic rod drives the circumferential guide rollers to tilt upwards and lift the pipe. After the pipe separates from the axial guide rollers, the concentricity of the pipe can be calibrated by adjusting the height of the circumferential guide rollers, meeting the high-precision assembly requirements of the automatic welding process. The axis of the circumferential guide rollers is parallel to the pipe compartment, and the axial freedom of the pipe is restricted after lifting, preventing displacement due to external forces after assembly.

[0017] 3. The guide and lifting components are staggered to provide support during the sliding and assembly stages of the pipeline, respectively, preventing vibration or overturning caused by single-point stress. The composite reinforcement design of connecting rods, support rods, and stiffening plates significantly enhances overall rigidity and can withstand the inertial impact during the movement of the internal welding machine.

[0018] 4. The mounting frame and the pallet are slidably connected, which not only ensures the linear stability of the circumferential guide roller during the lifting process, but also facilitates quick disassembly and maintenance, reducing the risk of equipment failure.

[0019] 5. This fixture facilitates the standardization of the pipe assembly process: pre-positioning of the axial guide roller, lifting of the telescopic rod, and locking of the circumferential guide roller, simplifying the complexity of welder operations and shortening the assembly time per cycle.

[0020] 6. The circumferential guide rollers have a wide adjustable height range, adapting to pipes of different diameters and meeting diverse training needs. When the internal welding machine moves freely between the pipe chamber and the pipe, the rigid support of the circumferential guide rollers ensures the positioning accuracy of the welding torch, improving training quality.

[0021] 7. After the pipe is lifted, it completely detaches from the axial guide roller, eliminating the risk of accidental displacement caused by friction between the pipe and the axial guide roller during the longitudinal movement of the inner welding machine. The vertical arrangement of the bracket inclined plate and the telescopic rod forms a mechanical triangular support, avoiding structural deformation or breakage caused by eccentric loading during the lifting process. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the present invention.

[0023] Figure 2 This is a top view of the present invention.

[0024] Figure 3 for Figure 2 Sectional view along the AA direction.

[0025] The components in the attached diagram are named as follows: 1. Support, 2. Tube compartment, 3. Support rod, 4. Bracket, 5. Axial guide roller, 6. Connecting rod, 7. Bracket, 701. Inclined plate, 702. Support plate, 703. Rib plate, 8. Telescopic rod, 9. Mounting frame, 10. Circumferential guide roller. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] Example 1: Refer to Figures 1-3 As shown, a welding fixture for training large-diameter pipe automatic welding includes two parallel supports 1, which are fixedly connected by multiple connecting rods 6, which are perpendicular to the supports 1.

[0028] A tube compartment 2 is centrally located above one side of the two supports 1. The inner welding machine is located in the tube compartment 2. The tube compartment 2 and the support 1 are fixedly connected by multiple support rods 3.

[0029] Multiple guide components are provided on the opposite end faces of the two supports 1 on one side of the tube compartment 2. The guide components include a bracket 4 fixedly connected to the support 1. An axial guide roller 5 is rotatably connected inside the bracket 4. The axis of the axial guide roller 5 is perpendicular to the axis of the tube compartment 2. The end of the axial guide roller 5 closest to the support 1 on its side is inclined upward. After the pipe is supported by the axial guide rollers 5 on both sides, it is convenient to move towards the tube compartment 2.

[0030] Multiple lifting components are provided on the opposite end faces of the two supports 1 on one side of the tube hopper 2. The lifting components are staggered with the guide components. Each lifting component includes a bracket 7 fixedly connected to the support 1. The bracket 7 includes an inclined plate 701. The end of the inclined plate 701 closest to its support 1 is inclined upwards, and the inclined plate 701 is fixedly connected to the connecting rods 6 on both sides. A support plate 702 is fixedly attached to the end of the inclined plate 701 away from its support 1. The support plate 702 is perpendicular to the inclined plate 701. A telescopic rod 8 is fixedly attached to the inclined plate 701, and the axis of the telescopic rod 8 is perpendicular to the inclined plate 701. A mounting frame 9 is detachably fixedly connected to the telescopic end of the telescopic rod 8. A circumferential guide roller 10 is installed inside the mounting frame 9, and the axis of the circumferential guide roller 10 is parallel to the axis of the tube hopper 2.

[0031] When two pipes need to be aligned, the two pipes are designated as the first pipe and the second pipe. The first pipe is placed on one side of the pipe compartment 2 and supported by multiple axial guide rollers 5 on both sides. At this time, the circumferential guide rollers 10 do not contact the first pipe. The first pipe is pushed so that the opposite end faces of the first pipe and the pipe compartment 2 come into contact. Then, multiple telescopic rods 8 on both sides of the first pipe and corresponding to the first pipe are activated. After the multiple telescopic rods 8 corresponding to the first pipe are activated, the circumferential guide rollers 10 corresponding to the first pipe tilt upward. When the circumferential guide rollers 10 corresponding to the first pipe come into contact with the first pipe, the circumferential guide rollers 10 on both sides of the first pipe and corresponding to the first pipe can lift the first pipe. After the first pipe is lifted, it separates from the axial guide rollers 5. When the first pipe is concentric with the pipe compartment 2, the telescopic rods 8 corresponding to the first pipe are closed.

[0032] The second pipe is placed to one side of the first pipe, supported by multiple axial guide rollers 5 on both sides. At this time, the circumferential guide roller 10 corresponding to the second pipe is not in contact with it. The second pipe is pushed until its opposite end faces contact the first pipe. Then, multiple telescopic rods 8 on both sides of the second pipe are activated. After the telescopic rods 8 are activated, the circumferential guide rollers 10 corresponding to the second pipe tilt upwards. When the circumferential guide rollers 10 on both sides of the second pipe contact the second pipe, they can lift the second pipe. After being lifted, the second pipe separates from the axial guide rollers 5. When the second pipe is concentric with the first pipe, the telescopic rods 8 corresponding to the second pipe are closed. Because the axis of the circumferential guide roller 10 is parallel to the axis of the pipe compartment 2, the first and second pipes cannot move along their axial direction after being lifted by the circumferential guide rollers 10. The pipe compartment 2, the first pipe, and the second pipe have good stability after alignment.

[0033] The inner welding machine is moved into the first pipe. Once the welding torch of the inner welding machine aligns with the joint between the first and second pipes, the inner welding machine can be started for welding training.

[0034] Example 2: Based on Example 1, referring to... Figure 3 As shown, the mounting bracket 9 is slidably connected to the support plate 702, and the inclined plate 701 is fixedly connected to the support plate 702 by multiple stiffening plates 703.

[0035] When the telescopic rod 8 is activated to lift the pipeline using the circumferential guide roller 10, the mounting frame 9 and the support plate 702 are slidably connected, and the support plate 702 can support the moving mounting frame 9, which can improve the pressure bearing capacity of the circumferential guide roller 10 and improve the stability of the circumferential guide roller 10 when lifting the pipeline.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A welding fixture for training large-diameter pipe automatic welding, comprising two parallel supports (1) fixedly connected, characterized in that, A pipe compartment (2) is centrally located above one side of two supports (1). The inner welding machine is located in the pipe compartment (2). The pipe compartment (2) is fixedly connected to the supports (1). Multiple guide components are provided on the opposite end faces of the two supports (1) on one side of the pipe compartment (2). The guide components include a bracket (4) fixedly connected to the supports (1). A axial guide roller (5) is rotatably connected inside the bracket (4). The axis of the axial guide roller (5) is perpendicular to the axis of the pipe compartment (2). The end of the axial guide roller (5) closest to its support (1) is inclined upward. After the pipe is supported by the axial guide rollers (5) on both sides, it is convenient to move towards the pipe compartment (2). Multiple guide components are provided on the opposite end faces of the two supports (1) on one side of the pipe compartment (2). Multiple lifting components are provided, and the lifting components and guide components are staggered. The lifting components include a bracket (7) fixedly connected to the support (1). The bracket (7) includes an inclined plate (701). The end of the inclined plate (701) near the support (1) is inclined upward. The end of the inclined plate (701) away from the support (1) is fixed with a support plate (702). A telescopic rod (8) is fixed on the inclined plate (701). A mounting frame (9) is detachably fixedly connected to the telescopic end of the telescopic rod (8). A circumferential guide roller (10) is installed in the mounting frame (9). The axis of the circumferential guide roller (10) is parallel to the axis of the tube compartment (2). The mounting frame (9) is slidably connected to the support plate (702).

2. The welding fixture for automatic welding training of large-diameter pipes according to claim 1, characterized in that, The two supports (1) are fixedly connected by multiple connecting rods (6), and the connecting rods (6) are perpendicular to the supports (1).

3. The welding fixture for automatic welding training of large-diameter pipes according to claim 2, characterized in that, The inclined plate (701) is fixedly connected to the connecting rods (6) on both sides.

4. The welding fixture for automatic welding training of large-diameter pipes according to claim 1, characterized in that, The tube compartment (2) and the support (1) are fixedly connected by multiple support rods (3).

5. The welding fixture for automatic welding training of large-diameter pipes according to claim 1, characterized in that, The inclined plate (701) and the support plate (702) of the bracket (7) are fixedly connected by multiple stiffening plates (703).

6. The welding fixture for automatic welding training of large-diameter pipes according to claim 1, characterized in that, The support plate (702) is perpendicular to the inclined plate (701).

7. The welding fixture for automatic welding training of large-diameter pipes according to claim 1, characterized in that, The axis of the telescopic rod (8) is perpendicular to the inclined plate (701).

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