A pressure pipe welding auxiliary support
The mechanized docking system of the pressure tube welding auxiliary support solves the problem of welding misalignment in pressure tube welding, and achieves efficient and stable welding results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE THIRD CONSTR ENG CO LTD OF CHINA CONSTR SECOND ENG BUREAU
- Filing Date
- 2025-07-01
- Publication Date
- 2026-08-04
AI Technical Summary
During the welding process of pressure pipes, the lack of effective guidance can lead to welding misalignment, affecting the welding quality and efficiency. In particular, it is more difficult to ensure the stability of the welding path for large-diameter pressure pipes, which increases the safety risks.
A pressure tube welding auxiliary support is adopted, which uses an electric cylinder, servo motor and bevel gear transmission system to mechanize the docking process of the pressure tube, ensuring stability and precise docking.
This achieves stability and high efficiency in pressure pipe welding, avoids weld misalignment, improves welding quality and efficiency, and reduces safety hazards.
Smart Images

Figure CN224588663U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of auxiliary support technology, and in particular to a pressure tube welding auxiliary support. Background Technology
[0002] In various engineering fields, such as building water supply and drainage, municipal pipeline laying, and industrial fluid transportation, pressure pipe welding is a key link to ensure the safe and stable operation of pipeline systems.
[0003] However, currently, pressure pipe welding largely relies on manual operation by operators, making it difficult to guarantee precise straightness of the welding path. Due to the lack of effective guidance, welding misalignment easily occurs, leading to defects such as inconsistent weld width and misalignment, affecting welding quality and efficiency. This is especially true for large-diameter pressure pipes, where manual operation makes it even more difficult to ensure the stability of the welding path, resulting in inconsistent welding quality and increasing the risk of leaks and other safety hazards during later operation of the pipeline system. Therefore, this invention proposes an auxiliary support for pressure pipe welding. Utility Model Content
[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a pressure pipe welding auxiliary support.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A pressure tube welding auxiliary support includes a welding platform and an upright plate fixed to the top rear end of the welding platform. A first arc-shaped support for supporting a first pressure tube is fixedly connected to the top right side of the welding platform located in front of the upright plate. A second arc-shaped support for supporting a second pressure tube is fixedly connected to the top left side of the welding platform located in front of the upright plate. A crossbeam is fixedly installed on the upper front side of the upright plate. A first electric cylinder is fixedly installed on the bottom right side of the crossbeam. An installation plate is fixedly connected to the output end of the first electric cylinder. A first arc-shaped fixing sleeve for fixing the first pressure tube is fixedly connected to the bottom of the installation plate.
[0007] The bottom left side of the cross frame is provided with a movable groove, in which a vertically arranged movable column is movably installed. A U-shaped frame is fixedly connected to the bottom end of the movable column. An arc-shaped support groove for supporting the second pressure tube is provided on the bottom inner wall of the U-shaped frame. A second electric cylinder is fixedly installed on the top inner wall of the U-shaped frame. A second arc-shaped fixing sleeve for fixing the second pressure tube is fixedly connected to the output end of the second electric cylinder.
[0008] A horizontally arranged lead screw is rotatably installed in the movable slot, and a lead screw nut is fixedly sleeved on the movable column. The lead screw and the lead screw nut are threadedly connected. A servo motor is fixedly installed on the top of the cross frame. The output shaft of the servo motor is fixedly connected to a first bevel gear, and a second bevel gear is fixedly sleeved on the lead screw. The first bevel gear and the second bevel gear are engaged in transmission.
[0009] Furthermore, a ball guide groove is provided on the inner wall of the top side of the movable groove, and a guide ball is rotatably installed on the top of the movable column. The guide ball is rotatably disposed in the ball guide groove in the horizontal direction.
[0010] Furthermore, a bearing seat is provided on the side wall of the movable groove, and the end of the lead screw is rotatably mounted on the bearing seat.
[0011] Furthermore, multiple rollers are rolled on the bottom arc-shaped inner wall of the second arc-shaped support, and the bottom side of the second pressure tube is rolledly connected to the rollers.
[0012] Furthermore, both the top inner wall of the second arc-shaped fixing sleeve and the bottom arc-shaped inner wall of the arc-shaped support groove are provided with anti-slip layers.
[0013] Furthermore, a controller is provided on the front of the welding stand, and the controller is electrically connected to the first electric cylinder, the second electric cylinder and the servo motor respectively.
[0014] The beneficial effects achieved by this utility model using the above structure are as follows:
[0015] 1. In this utility model, not only is the first pressure tube fixed between the first arc-shaped fixing sleeve and the first arc-shaped support, but the second pressure tube is also fixed between the second arc-shaped fixing sleeve and the arc-shaped support groove. This ensures the stability of the subsequent welding process, avoids the phenomenon of displacement during welding, and guarantees the quality of the subsequent welding.
[0016] 2. In this utility model, the first bevel gear is driven to rotate by a servo motor and meshes with the second bevel gear to drive the lead screw to rotate. This allows the movable column to move to the right through the lead screw nut based on the threaded transmission on the lead screw. When the movable column moves to the right, it also drives the second pressure tube fixed by the U-shaped frame and the second arc-shaped fixing sleeve to move to the right. At the same time, the bottom of the second pressure tube rolls on the roller, which allows the right end of the second pressure tube to connect with the left end of the first pressure tube. This can assist people in the welding operation between the first pressure tube and the second pressure tube, making the welding operation more time-saving, labor-saving, convenient and quick.
[0017] Ultimately, this pressure pipe welding auxiliary support, through mechanized docking operations, makes docking during welding very convenient and quick, avoiding the trouble of manual docking required in the past. It helps people achieve more precise welding, not only preventing defects such as inconsistent weld width and misalignment caused by deviation of the welding movement path, but also ensuring the stability of welding, improving welding quality and efficiency, and making it suitable for widespread use. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of a pressure pipe welding auxiliary support proposed in this utility model;
[0019] Figure 2 for Figure 1 A schematic diagram of the structure of part A;
[0020] Figure 3 This is a side view of the second pressure tube, U-shaped frame, second electric cylinder, and second arc-shaped fixing sleeve of this utility model.
[0021] In the diagram: 1. Welding stand; 101. Vertical plate; 2. First arc-shaped support; 3. Horizontal frame; 301. Movable groove; 4. First electric cylinder; 5. Mounting plate; 6. First arc-shaped fixing sleeve; 7. First pressure pipe; 8. Second pressure pipe; 9. Second arc-shaped support; 901. Roller; 10. Servo motor; 11. First bevel gear; 12. Second bevel gear; 13. Lead screw; 14. Lead screw nut; 15. Movable column; 16. U-shaped frame; 161. Arc-shaped support groove; 17. Second electric cylinder; 18. Second arc-shaped fixing sleeve; 19. Guide ball; 20. Ball guide groove; 21. Controller. Detailed Implementation
[0022] 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.
[0023] Reference Figure 1-3A pressure pipe welding auxiliary support includes a welding platform 1 and a vertical plate 101 fixed to the top rear end of the welding platform 1. A first arc-shaped support 2 for supporting a first pressure pipe 7 is fixedly connected to the top right side of the welding platform 1 located in front of the vertical plate 101; a second arc-shaped support 9 for supporting a second pressure pipe 8 is fixedly connected to the top left side of the welding platform 1 located in front of the vertical plate 101; a horizontal frame 3 is fixedly installed on the upper front side of the vertical plate 101, and a first electric cylinder 4 is fixedly installed on the bottom right side of the horizontal frame 3. The output end of the first electric cylinder 4 is fixedly connected to a mounting plate 5. The bottom of the mounting plate 5 is fixedly connected to a first arc-shaped fixing sleeve 6 for fixing the first pressure pipe 7; the bottom left side of the cross frame 3 is provided with a movable groove 301, in which a vertically arranged movable column 15 is movably installed, the bottom end of the movable column 15 is fixedly connected to a U-shaped frame 16, the bottom inner wall of the U-shaped frame 16 is provided with an arc-shaped support groove 161 for supporting the second pressure pipe 8, the top inner wall of the U-shaped frame 16 is fixedly installed with a second electric cylinder 17, and the output end of the second electric cylinder 17 is fixedly connected to a second arc-shaped fixing sleeve 18 for fixing the second pressure pipe 8;
[0024] A horizontally arranged lead screw 13 is rotatably installed in the movable slot 301. A lead screw nut 14 is fixedly sleeved on the movable column 15, and the lead screw 13 and the lead screw nut 14 are threadedly connected. A servo motor 10 is fixedly installed on the top of the cross frame 3. A first bevel gear 11 is fixedly connected to the output shaft of the servo motor 10. A second bevel gear 12 is fixedly sleeved on the lead screw 13, and the first bevel gear 11 and the second bevel gear 12 are engaged in transmission.
[0025] In this embodiment, a ball guide groove 20 is provided on the top inner wall of the movable groove 301, and a guide ball 19 is rotatably mounted on the top of the movable column 15. The guide ball 19 is rotatably disposed in the ball guide groove 20 in the horizontal direction.
[0026] In this embodiment, a bearing seat is provided on the side wall of the movable groove 301, and the end of the lead screw 13 is rotatably mounted on the bearing seat; multiple rollers 901 are rolled on the bottom arc-shaped inner wall of the second arc-shaped support 9, and the bottom side of the second pressure pipe 8 is rolledly connected to the rollers 901; anti-slip layers are provided on the top inner wall of the second arc-shaped fixing sleeve 18 and the bottom arc-shaped inner wall of the arc-shaped support groove 161.
[0027] The welding stand 1 has a controller 21 on its front side, which is electrically connected to the first electric cylinder 4, the second electric cylinder 17 and the servo motor 10.
[0028] like Figure 1-3As shown, in use, the pressure pipe welding auxiliary bracket places the first pressure pipe 7 to be welded on the first arc-shaped support 2, and the first electric cylinder 4 drives the first arc-shaped fixing sleeve 6 at the bottom of the mounting plate 5 to move down, thereby fixing the first pressure pipe 7 between the first arc-shaped fixing sleeve 6 and the first arc-shaped support 2 (as shown). Figure 1 (As shown in the diagram). Then, the second pressure tube 8 to be welded is placed in the arc-shaped support groove 161 on the second arc-shaped support 9 and the U-shaped frame 16. The second electric cylinder 17 drives the second arc-shaped fixing sleeve 18 downwards, thereby fixing the second pressure tube 8 between the second arc-shaped fixing sleeve 18 and the arc-shaped support groove 161. Then, the servo motor 10 drives the first bevel gear 11 to rotate and mesh with the second bevel gear 12, driving the lead screw 13 to rotate. This allows the movable column 15 to move to the right via the lead screw nut 14 based on the threaded drive on the lead screw 13. When the movable column 15 moves to the right, it also drives the U-shaped frame 16 and the second arc-shaped support groove 161. The second pressure tube 8, fixed by the fixed sleeve 18, moves to the right, and at the same time, the bottom of the second pressure tube 8 rolls on the roller 901, so that the right end of the second pressure tube 8 can be connected with the left end of the first pressure tube 7. This can help people to perform the welding operation between the first pressure tube 7 and the second pressure tube 8, avoiding the trouble of manually moving and connecting the pressure tubes in the past. It can help people achieve more precise welding, not only preventing defects such as uneven weld width and misalignment caused by the deviation of the welding movement path, but also ensuring the stability of the welding, improving the welding quality and efficiency, and is suitable for widespread use.
[0029] 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 pressure pipe welding auxiliary support, comprising a welding platform (1) and a vertical plate (101) fixed to the top rear end of the welding platform (1), characterized in that, A first arc-shaped support (2) for supporting the first pressure tube (7) is fixedly connected to the top right side of the welding stand (1) located on the front side of the upright plate (101); a second arc-shaped support (9) for supporting the second pressure tube (8) is fixedly connected to the top left side of the welding stand (1) located on the front side of the upright plate (101); a crossbeam (3) is fixedly installed on the upper front side of the upright plate (101); a first electric cylinder (4) is fixedly installed on the bottom right side of the crossbeam (3); a mounting plate (5) is fixedly connected to the output end of the first electric cylinder (4); and a first arc-shaped fixing sleeve (6) for fixing the first pressure tube (7) is fixedly connected to the bottom of the mounting plate (5). The bottom left side of the cross frame (3) is provided with a movable groove (301), and a vertically arranged movable column (15) is movably installed in the movable groove (301). A U-shaped frame (16) is fixedly connected to the bottom end of the movable column (15). An arc-shaped support groove (161) for supporting the second pressure tube (8) is provided on the bottom inner wall of the U-shaped frame (16). A second electric cylinder (17) is fixedly installed on the top inner wall of the U-shaped frame (16). A second arc-shaped fixing sleeve (18) for fixing the second pressure tube (8) is fixedly connected to the output end of the second electric cylinder (17). A horizontally arranged lead screw (13) is rotatably installed in the movable slot (301), and a lead screw nut (14) is fixedly sleeved on the movable column (15). The lead screw (13) and the lead screw nut (14) are threadedly connected. A servo motor (10) is fixedly installed on the top of the cross frame (3). A first bevel gear (11) is fixedly connected to the output shaft of the servo motor (10), and a second bevel gear (12) is fixedly sleeved on the lead screw (13). The first bevel gear (11) and the second bevel gear (12) are engaged in transmission.
2. The pressure pipe welding auxiliary support according to claim 1, characterized in that, The inner wall of the top side of the movable groove (301) is provided with a ball guide groove (20), and a guide ball (19) is rolled on the top of the movable column (15). The guide ball (19) is rolled in the ball guide groove (20) in the horizontal direction.
3. The pressure pipe welding auxiliary support according to claim 1, characterized in that, A bearing seat is provided on the side wall of the movable groove (301), and the end of the lead screw (13) is rotatably mounted on the bearing seat.
4. The pressure pipe welding auxiliary support according to claim 1, characterized in that, Multiple rollers (901) are rolled on the bottom arc-shaped inner wall of the second arc support (9), and the bottom side of the second pressure pipe (8) is rolledly connected to the rollers (901).
5. The pressure pipe welding auxiliary support according to claim 1, characterized in that, The top inner wall of the second arc-shaped fixing sleeve (18) and the bottom arc-shaped inner wall of the arc-shaped support groove (161) are both provided with anti-slip layers.
6. The pressure pipe welding auxiliary support according to claim 1, characterized in that, The front of the welding stand (1) is provided with a controller (21), which is electrically connected to the first electric cylinder (4), the second electric cylinder (17) and the servo motor (10).