Hydraulic pipeline welding displacement tool

Abstract

This utility model relates to the field of welding training technology, specifically to a hydraulic pipeline welding positioning fixture. It includes a base plate with multiple supports fixed to its upper end. A fixed seat is fixedly connected to the upper ends of the supports. A rotating seat is rotatably connected inside the fixed seat. An mounting plate is fixed to the upper end of the rotating seat. A connecting plate is detachably fixed to the mounting plate. A rear arc-shaped plate is fixed to the connecting plate. A support plate is fixed to one side of the rotating seat and the mounting plate. A front arc-shaped plate is fixed to the end of the support plate away from the rotating seat. A baffle is fixed inside the front arc-shaped plate. A limit plate is fixed to the upper end of the baffle. A gap is provided between the limit plate and the front arc-shaped plate to engage the pipeline. The support plate and the base plate are connected by a hydraulic telescopic rod. This utility model uses a single hydraulic telescopic rod to drive the support plate and the rotating seat in linkage, achieving synchronous tilt adjustment of the arc-shaped plate. It can adjust the spatial angle of two pipelines at once, accurately simulating the variable pipeline welding conditions in mountainous areas.

Description

Technical Field

[0001] This utility model relates to the field of welding training technology, specifically to a hydraulic pipeline welding positioning tool. Background Technology

[0002] In the construction of large-diameter long-distance pipelines, welding is a crucial process for ensuring pipeline construction quality, but it is also a challenging aspect. Welding in mountainous areas presents even greater difficulties. This difficulty stems from the fact that the spatial location of circumferential welds in mountainous terrain often varies at multiple angles depending on the contours of the mountain. Therefore, pre-construction welder training and welding procedure qualification (CPC) creation are far more complex in mountainous areas than in plains. Theoretically, the most effective way to conduct training and create CPCs is at the construction site, but this is costly and inefficient. Meanwhile, fixed training facilities are limited by space and cannot fully simulate on-site conditions.

[0003] Patent document CN215546394U discloses a large-diameter pipe welding adjustment device. In use, the right end of the second pipe section passes through a collar, so that the left side of the second pipe section is located inside the second U-shaped plate. Tightening the locking screw fixes the second pipe section inside the collar. Activating the second telescopic cylinder causes its telescopic rod to move the second U-shaped plate upwards. Simultaneously, the left end of the second pipe section rotates upwards. As the left end of the second pipe section rotates upwards, the collar, pin, and pointer rotate together. When the pointer aligns with the protractor's scale and the angle required for inclined pipe training, the telescopic rod of the second telescopic cylinder stops moving. Then, the... The third telescopic cylinder is activated, causing its telescopic rod to move the lug and support rod upwards, bringing the upper end of the support rod into tight contact with the lower end of the second pipe section. At this point, the support rod is parallel to the second pipe section. Then, the left side of the first pipe is positioned within the first U-shaped plate, and the right end of the first pipe contacts the upper end of the support rod. The first telescopic cylinder is then activated, causing its telescopic rod to move the first U-shaped plate upwards, thus tilting the left end of the first pipe section upwards. When the upper end of the support rod contacts the lower end of the first pipe section, the first and second pipe sections are parallel. Then, the right ends of the first pipe section and the left ends of the second pipe section are brought into tight contact. Welding training for the tilted pipes can then be conducted. This technical solution requires controlling the angles of the two pipes separately using the first and second telescopic cylinders, which makes pipe angle adjustment cumbersome and increases equipment manufacturing costs. Utility Model Content

[0004] The main purpose of this utility model is to provide a hydraulic pipe welding positioning tool that can simultaneously adjust the angle of two pipes to be welded, which is convenient for simulating the working conditions of pipe construction sites in mountainous areas and facilitates welder training and welding process evaluation.

[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows: A hydraulic pipe welding positioning fixture includes a base plate, with multiple supports fixed to the upper end of the base plate. A fixed seat is fixedly connected to the upper end of the multiple supports. A rotating seat is rotatably connected inside the fixed seat. An mounting plate is fixed to the upper end of the rotating seat. A connecting plate is detachably fixed to the mounting plate. A rear arc-shaped plate is fixed to the connecting plate. A support plate is fixed to one side of the rotating seat and the mounting plate. A front arc-shaped plate is fixed to the end of the support plate away from the rotating seat. A baffle is fixed inside the front arc-shaped plate. A limit plate is fixed to the upper end of the baffle. A gap is provided between the limit plate and the front arc-shaped plate to engage the pipe. The support plate and the base plate are connected by a hydraulic telescopic rod.

[0006] Specifically, the inner edges of the front and rear arc-shaped plates are flush.

[0007] Specifically, ear plates are fixed on both the support plate and the base plate, and the two ends of the hydraulic telescopic rod are rotatably connected to the two ear plates respectively.

[0008] Specifically, it also includes struts, the upper end of which is detachably and fixedly connected to the support plate. When the support plate is horizontal, the lower end of the strut contacts the upper end of the base plate and supports the support plate.

[0009] Specifically, the upper end of the support rod has a groove, the support plate is located in the groove, and the pin passes through the support rod and the support plate.

[0010] Specifically, a base is fixed to the upper end of the base plate, a connecting rod is rotatably connected inside the base, a connecting seat is fixed on the connecting rod, a through hole is opened on the connecting seat, and multiple positioning holes are evenly distributed along the length of the support plate. When the support plate is tilted, the pin passes through the through hole and the positioning hole corresponding to the through hole.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. By driving the support plate and rotating seat together through a single hydraulic telescopic rod, the front and rear arc plates can be tilted and adjusted synchronously. The spatial angle of two pipes can be adjusted at one time, accurately simulating the changing welding conditions of pipelines in mountainous areas. This greatly simplifies the structure and reduces equipment costs and energy consumption.

[0012] 2. The front arc-shaped plate and the limiting plate form a locking gap, which, combined with the symmetrical support of the rear arc-shaped plate, ensures that the pipeline is not easily slipped off in either horizontal or inclined states. The baffle acts as a physical barrier, further preventing accidental displacement of the pipeline when inclined, thus improving operational safety.

[0013] 3. When the strut is horizontal, the support plate is locked by the groove and pin, which enhances the load-bearing capacity and avoids long-term pressure on the hydraulic system; when tilted, it is fixed by the connecting rod, connecting seat and positioning hole pin to form a rigid support and ensure that the angle remains stable.

[0014] 4. The connecting plate and mounting plate are designed to be detachable, making it easy to replace the arc plate of different specifications to adapt to various pipe diameters; the struts, pins and other components can be flexibly disassembled to adapt to different working conditions.

[0015] 5. The evenly distributed positioning holes on the support plate mate with the through holes of the connecting seat, allowing the tilt angle to be locked at fixed intervals, meeting the needs of standardized training. The hydraulic drive provides high torque output, supporting the smooth displacement of large-diameter pipelines (such as DN1200 and above); the flush design of the inner edges of the front and rear arc plates ensures pipeline alignment, reduces welding misalignment, and improves the accuracy of training and process evaluation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the displacement tooling.

[0017] Figure 2 This is the front view of the tooling after displacement.

[0018] The components in the attached diagram are named as follows: 1. Base plate, 2. Support column, 3. Fixed seat, 4. Rotating seat, 5. Mounting plate, 6. Connecting plate, 7. Rear arc plate, 8. Support plate, 9. Front arc plate, 10. Baffle, 11. Limiting plate, 12. Telescopic rod, 13. Support rod, 14. Connecting rod, 15. Connecting seat, 16. Positioning hole, 17. Pin, 18. Base. Detailed Implementation

[0019] 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.

[0020] Example 1: Refer to Figures 1-2 As shown, a hydraulic pipe welding positioning fixture includes a base plate 1, with multiple supports 2 fixed to the upper end of the base plate 1. A fixed seat 3 is fixedly connected to the upper end of the multiple supports 2. A rotating seat 4 is rotatably connected inside the fixed seat 3. An mounting plate 5 is fixed to the upper end of the rotating seat 4. A connecting plate 6 is detachably fixedly connected to the mounting plate 5. A rear arc plate 7 is fixed to the connecting plate 6. A support plate 8 is fixed to one side of the rotating seat 4 and the mounting plate 5. A front arc plate 9 is fixed to the end of the support plate 8 away from the rotating seat 4. The inner edges of the front arc plate 9 and the rear arc plate 7 are flush.

[0021] A baffle 10 is fixed inside the front arc plate 9, and a limiting plate 11 is fixed at the upper end of the baffle 10. A gap is provided between the limiting plate 11 and the front arc plate 9 to engage the pipe.

[0022] The support plate 8 and the base plate 1 are connected by a hydraulic telescopic rod 12. Both the support plate 8 and the base plate 1 are fixed with ear plates, and the two ends of the hydraulic telescopic rod 12 are rotatably connected to the two ear plates respectively.

[0023] When simulating the working conditions of a pipeline construction site in a mountainous area, the first pipeline is hoisted and horizontally supported by the front arc plate 9 and the rear arc plate 7. At this time, the inner alignment device is located inside the first pipeline. Then, the lower end of the first pipeline is engaged between the limiting plate 11 and the front arc plate 9. The second pipeline is hoisted to one side of the first pipeline, and the inner alignment device is used to align the first pipeline with the second pipeline.

[0024] Activating the hydraulic telescopic rod 12 causes it to retract, rotating the two pipes, the inner alignment device, the front arc plate 9, the rear arc plate 7, the connecting plate 6, and the rotating seat 4. The two pipes then tilt, simulating the working conditions of a pipeline construction site in a mountainous area. After the pipes tilt, the baffle 10 can block them, preventing them from slipping off the front arc plate 9 and the rear arc plate 7.

[0025] After the pipe is tilted, the movable platform can be moved to both sides of the pipe to perform the corresponding welding operations.

[0026] Example 2: Based on Example 1, referring to... Figure 1 As shown, a hydraulic pipe welding positioning fixture also includes a support rod 13. The upper end of the support rod 13 is detachably and fixedly connected to the support plate 8. When the support plate 8 is horizontal, the lower end of the support rod 13 contacts the upper end of the base plate 1 and supports the support plate 8. A groove is provided at the upper end of the support rod 13, and the support plate 8 is located in the groove. A pin passes through the support rod 13 and the support plate 8.

[0027] By installing strut 13, the support plate 8 can be supported when it is horizontal. The front arc plate 9 and the rear arc plate 7 can improve the pressure-bearing capacity and enhance the stability and safety of the pipeline when providing horizontal support. The strut 13 can be removed to adjust the pipeline angle.

[0028] Example 3: Based on Example 1, referring to... Figure 2 As shown, a base 18 is fixed to the upper end of the base plate 1. A connecting rod 14 is rotatably connected inside the base 18. A connecting seat 15 is fixed on the connecting rod 14. A through hole is opened on the connecting seat 15. Multiple positioning holes 16 are evenly distributed along the length of the support plate 8. When the support plate 8 is tilted, the pin 17 passes through the through hole and the positioning hole 16 corresponding to the through hole.

[0029] After the two pipes are tilted, the pin 17 is passed through the through hole and the corresponding positioning hole 16. When the front arc plate 9 and the rear arc plate 7 provide tilt support for the pipes, the stability and safety of the pipes can be improved.

[0030] 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 hydraulic pipe welding positioning fixture, comprising a base plate (1), characterized in that, Multiple support columns (2) are fixed on the upper end of the base plate (1). The fixed seat (3) is fixedly connected to the upper end of the multiple support columns (2). A rotating seat (4) is rotatably connected inside the fixed seat (3). An mounting plate (5) is fixed on the upper end of the rotating seat (4). A connecting plate (6) is detachably fixed on the mounting plate (5). A rear arc plate (7) is fixed on the connecting plate (6). A support plate (8) is fixed on one side of the rotating seat (4) and the mounting plate (5). A front arc plate (9) is fixed on the end of the support plate (8) away from the rotating seat (4). A baffle (10) is fixed inside the front arc plate (9). A limit plate (11) is fixed on the upper end of the baffle (10). A gap that can clamp the pipe is provided between the limit plate (11) and the front arc plate (9). The support plate (8) is connected to the base plate (1) through a hydraulic telescopic rod (12).

2. The hydraulic pipe welding positioning tool according to claim 1, characterized in that, The inner edges of the front arc plate (9) and the rear arc plate (7) are flush.

3. The hydraulic pipe welding positioning tool according to claim 1, characterized in that, Both the support plate (8) and the base plate (1) are fixed with ear plates, and the two ends of the hydraulic telescopic rod (12) are rotatably connected to the two ear plates respectively.

4. The hydraulic pipe welding positioning tool according to claim 1, characterized in that, It also includes a strut (13), the upper end of which is detachably and fixedly connected to the support plate (8). When the support plate (8) is horizontal, the lower end of the strut (13) contacts the upper end of the base plate (1) and supports the support plate (8).

5. The hydraulic pipe welding positioning tool according to claim 4, characterized in that, The upper end of the support rod (13) is provided with a groove, the support plate (8) is located in the groove, and the pin passes through the support rod (13) and the support plate (8).

6. The hydraulic pipe welding positioning tool according to claim 1, characterized in that, The base plate (1) is fixed with a base (18) at the upper end. A connecting rod (14) is rotatably connected inside the base (18). A connecting seat (15) is fixed on the connecting rod (14). A through hole is opened on the connecting seat (15). Multiple positioning holes (16) are evenly distributed along the length of the support plate (8). When the support plate (8) is tilted, the pin (17) passes through the through hole and the positioning hole (16) corresponding to the through hole.

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