Steel box girder U rib plate positioning device

Abstract

The utility model discloses a steel box girder U rib plate positioning device, which relates to the technical field of U rib plate positioning, and comprises a support plate and an adjusting mechanism, a plurality of positioning blocks are arranged on the support plate, the positioning blocks are connected with the support plate through fixing components, one end of the support plate is connected with a first connecting plate through a rotating mechanism, and the other end of the support plate is connected with a second connecting plate. The other end of the supporting plate is connected with a second connecting plate through a first rotating rod, a controller is fixedly installed on the first connecting plate, the adjusting mechanism comprises two servo electric cylinders and a connecting assembly, and the output ends of the servo electric cylinders are connected with the first connecting plate and the sliding block through the connecting assembly. The second connecting plate is provided with a sliding groove allowing the sliding block to be connected in a sliding mode. According to the positioning device, the positioning angle of the positioning block can be adjusted, the two ends or welding parts of the U-shaped rib plate can be accurately aligned, welding defects caused by position deviation are reduced, the position of the U-shaped rib plate can be rapidly adjusted, the positioning time is shortened, and the welding efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of U-rib plate positioning technology, specifically a U-rib plate positioning device for steel box girders. Background Technology

[0002] Steel box girders are a common structural form for long-span bridges, requiring the assembly of numerous U-ribs on their top or bottom plates. The welding positions of the U-ribs to the top or bottom plates of the steel box girder must be extremely precise; otherwise, the overall structural strength and load-bearing capacity of the bridge will be affected. Positioning devices ensure that the U-ribs are precisely aligned with the top or bottom plates during installation, thus guaranteeing the accuracy of the welding positions.

[0003] In related technologies, during welding or assembly, threaded rods support connecting plates, and positioning blocks move on the connecting plates. These positioning blocks provide stable support and fixation for the U-rib plates, preventing movement or deformation. However, during steel box girder assembly, the U-rib plates may need to be installed at different angles on the top or bottom plates to meet bridge design requirements. Since the threaded rods are threaded to the connecting plates, angle adjustment is not possible, making it impossible to adapt to these multi-angle installation needs, leading to construction difficulties or even failure to complete the project. Therefore, those skilled in the art have provided a steel box girder U-rib plate positioning device to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this utility model is to provide a U-rib plate positioning device for steel box girders to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A positioning device for U-rib plates of steel box girders, comprising:

[0007] A support plate is provided with a plurality of positioning blocks and a scale. The positioning blocks are connected to the support plate by a fixing component. One end of the support plate is connected to a first connecting plate by a rotating mechanism, and the other end of the support plate is connected to a second connecting plate by a first rotating rod. A controller is fixedly installed on the first connecting plate.

[0008] The adjustment mechanism includes two servo electric cylinders and a connecting assembly. The output end of the servo electric cylinder is connected to a first connecting plate and a slider respectively through the connecting assembly. The second connecting plate is provided with a sliding groove for the slider to slide.

[0009] Preferably, the support plate has an adjustment groove, one end of the positioning block is engaged in the adjustment groove, and the end of the positioning block away from the adjustment groove has a U-shaped groove.

[0010] Preferably, the fixing component includes a connecting rod, a baffle, and a rotating handle. The rotating handle is fixedly connected to one end of the connecting rod, and the end of the connecting rod away from the rotating handle is threadedly connected to the positioning block. A through groove is provided on one side of the adjusting groove, through which the connecting rod passes. A through hole is provided on the baffle for the connecting rod to pass through, and the baffle is in contact with the support plate.

[0011] Preferably, the rotating mechanism includes a servo motor, a fixed frame, and a second rotating rod. The servo motor is installed inside the fixed frame, and the servo motor, the fixed frame, and the first connecting plate are fixedly connected. The output end of the servo motor is connected to the second rotating rod, and the extension end of the second rotating rod through the fixed frame is connected to the support plate.

[0012] Preferably, a limiting ring is fixedly provided on the second rotating rod, and a limiting groove is provided on the fixed frame for the limiting ring to rotate and connect. A rotating ball is rotatably connected to the limiting ring, and the rotating ball is slidably connected to the limiting groove.

[0013] Preferably, the connecting component includes a first connecting block and a second connecting block. The first connecting block is connected to the output end of the servo electric cylinder, and the second connecting block is connected to the slider and the first connecting plate respectively. The first connecting block and the second connecting block are rotatably connected.

[0014] Preferably, the lower end of the servo electric cylinder is fixedly provided with a mounting plate, and the mounting plate is provided with mounting thread holes.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention, through the setting of adjustment and rotation mechanisms, can adjust the positioning angle of the positioning block, so that the two ends of the U-rib plate or the welding part can be precisely aligned, reducing welding defects caused by position deviation, improving the quality of the welded joint, and can quickly and accurately adjust the position of the U-rib plate, reducing positioning time and improving welding efficiency.

[0017] This utility model, through the setting of fixed components, allows for adjustment of the distance between several positioning blocks, enabling perfect adaptation to different models of U-rib plates and achieving precise positioning. Furthermore, the positioning blocks can be fixedly connected to the support plate, and the number of positioning blocks can be increased as needed. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a steel box girder U-rib plate positioning device in an embodiment of this application;

[0019] Figure 2 This is a cross-sectional structural schematic diagram of a steel box girder U-rib plate positioning device according to an embodiment of this application;

[0020] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 for Figure 2 Enlarged view of section B in the middle.

[0022] In the diagram: 1. Support plate; 2. Positioning block; 3. First connecting plate; 4. First rotating rod; 5. Second connecting plate; 6. Controller; 7. Servo electric cylinder; 8. Slider; 9. Slide groove; 10. Adjustment groove; 11. U-shaped groove; 12. Connecting rod; 13. Baffle; 14. Rotating handle; 15. Through groove; 16. Through hole; 17. Servo motor; 18. Fixing frame; 19. Second rotating rod; 20. Limiting ring; 21. Limiting groove; 22. Rotating ball; 23. First connecting block; 24. Second connecting block; 25. Mounting plate; 26. Mounting threaded hole; 27. Scale. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-4 This utility model provides a technical solution:

[0025] A positioning device for U-rib plates of steel box girders, comprising:

[0026] A support plate 1 is provided, on which several positioning blocks 2 are installed. A scale 27 is provided on the support plate 1. The positioning blocks 2 are connected to the support plate 1 through a fixing component. One end of the support plate 1 is connected to a first connecting plate 3 through a rotating mechanism. The rotating mechanism includes a servo motor 17, a fixing frame 18, and a second rotating rod 19. The servo motor 17 is installed inside the fixing frame 18, and the servo motor 17, the fixing frame 18, and the first connecting plate 3 are fixedly connected. The output end of the servo motor 17 is connected to the second rotating rod 19. The extension end of the second rotating rod 19 that passes through the fixing frame 18 is connected to the support plate 1. The other end of the support plate 1 is connected to a second connecting plate 5 through a first rotating rod 4. A controller 6 is fixedly installed on the first connecting plate 3.

[0027] When adjusting the flipping or rotating angle of the positioning block 2, since one end of the support plate 1 is connected to the second connecting plate 5 through the first rotating rod 4, the adjustment controller 6 controls the servo motor 17 to operate. The servo motor 17 can drive the support plate 1 to rotate through the second rotating rod 19, thereby flipping the positioning block 2 and the rotation angle of the positioning block 2.

[0028] Furthermore, a limiting ring 20 is fixedly provided on the second rotating rod 19, and a limiting groove 21 is provided on the fixed frame 18 for the limiting ring 20 to rotate and connect. A rotating ball 22 is rotatably connected to the limiting ring 20, and the rotating ball 22 is slidably connected to the limiting groove 21.

[0029] When the support plate 1 rotates, the limiting ring 20 rotates within the limiting groove 21, and the rotating ball 22 slides within the limiting groove 21, reducing the rotational friction of the limiting ring 20, which can support the second rotating rod 19 and reduce the load on the servo motor 17.

[0030] The adjustment mechanism includes two servo cylinders 7 and a connecting assembly. The output ends of the servo cylinders 7 are connected to the first connecting plate 3 and the slider 8 respectively through the connecting assembly. The connecting assembly includes a first connecting block 23 and a second connecting block 24. The first connecting block 23 is connected to the output end of the servo cylinders 7, and the second connecting block 24 is connected to the slider 8 and the first connecting plate 3 respectively. The first connecting block 23 and the second connecting block 24 are rotatably connected. The second connecting plate 5 is provided with a sliding groove 9 for the slider 8 to slide.

[0031] When adjusting the height of the left and right ends of the support plate 1, the controller 6 manipulates the servo cylinder 7 to drive the two ends of the support plate 1 to move. By adjusting the servo cylinder 7, the two ends of the support plate 1 are moved to different heights, thereby adjusting the positioning angle of the positioning block 2. When adjusting the angle of the support plate 1, the slider 8 slides in the slide groove 9. Because the first connecting block 23 and the second connecting block 24 are rotatably connected, they rotate relative to each other, thereby realizing the adjustment of the angle of the support plate 1.

[0032] In summary, adjusting the positioning angle of positioning block 2 can precisely align the two ends of the U-rib plate or the welding part, reduce welding defects caused by position deviation, improve the quality of the welded joint, and quickly and accurately adjust the position of the U-rib plate, reducing positioning time and improving welding efficiency.

[0033] Specifically, the support plate 1 has an adjustment groove 10, one end of the positioning block 2 is engaged in the adjustment groove 10, and the end of the positioning block 2 away from the adjustment groove 10 has a U-shaped groove 11. The fixing assembly includes a connecting rod 12, a baffle 13 and a rotating handle 14. The rotating handle 14 is fixedly connected to one end of the connecting rod 12, and the end of the connecting rod 12 away from the rotating handle 14 is threadedly connected to the positioning block 2. A through groove 15 is provided on one side of the adjustment groove 10, and the connecting rod 12 passes through the through groove 15. A through hole 16 is provided on the baffle 13 for the connecting rod 12 to pass through, and the baffle 13 is in contact with the support plate 1.

[0034] When adjusting the distance between the positioning blocks 2, rotate the handle 14, and the connecting rod 12 moves in the through hole 16. Adjust the positioning blocks 2 according to the scale 27 on the support plate 1. After adjustment, rotate the handle 14, and the connecting rod 12 is threadedly connected to the positioning block 2. Fix the positioning block 2 to the support plate 1 to complete the adjustment of the positioning block 2. It can perfectly adapt to different models of U rib plates and achieve precise positioning.

[0035] When adding the positioning block 2, the rotating handle 14 and the connecting rod 12 pass through the through hole 16, and the positioning block 2 is engaged in the adjusting groove 10. Then, rotate the baffle 13 so that the baffle 13 contacts and connects with the support plate 1. Rotate the rotating handle 14 to tighten the baffle 13 and the support plate 1, and the addition of the positioning block 2 is completed.

[0036] In the above embodiment, a mounting plate 25 is fixedly provided at the lower end of the servo electric cylinder 7, and a mounting thread hole 26 is provided on the mounting plate 25.

[0037] When installing the mounting plate 25, the mounting plate 25 can be fixed by connecting the bolts to the mounting threaded holes 26, thereby fixing the device in place.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the scope and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A positioning device for U-rib plates of steel box girders, characterized in that, include: A support plate (1) is provided with a plurality of positioning blocks (2) and a scale (27) on the support plate (1). The positioning blocks (2) are connected to the support plate (1) through a fixing component. One end of the support plate (1) is connected to a first connecting plate (3) through a rotating mechanism. The other end of the support plate (1) is connected to a second connecting plate (5) through a first rotating rod (4). A controller (6) is fixedly installed on the first connecting plate (3). The adjustment mechanism includes two servo electric cylinders (7) and a connecting assembly. The output end of the servo electric cylinders (7) is connected to the first connecting plate (3) and the slider (8) respectively through the connecting assembly. The second connecting plate (5) is provided with a sliding groove (9) for the slider (8) to slide.

2. The steel box girder U-rib positioning device according to claim 1, characterized in that: The support plate (1) has an adjustment groove (10), one end of the positioning block (2) is engaged in the adjustment groove (10), and the end of the positioning block (2) away from the adjustment groove (10) has a U-shaped groove (11).

3. The steel box girder U-rib positioning device according to claim 1, characterized in that: The fixing assembly includes a connecting rod (12), a baffle (13), and a rotating handle (14). The rotating handle (14) is fixedly connected to one end of the connecting rod (12). The end of the connecting rod (12) away from the rotating handle (14) is threadedly connected to the positioning block (2). A through groove (15) is provided on one side of the adjusting groove (10). The connecting rod (12) passes through the through groove (15). A through hole (16) is provided on the baffle (13) for the connecting rod (12) to pass through. The baffle (13) is in contact with the support plate (1).

4. The steel box girder U-rib positioning device according to claim 1, characterized in that: The rotating mechanism includes a servo motor (17), a fixed frame (18), and a second rotating rod (19). The servo motor (17) is installed inside the fixed frame (18), and the servo motor (17) and the fixed frame (18) are fixedly connected to the first connecting plate (3). The output end of the servo motor (17) is connected to the second rotating rod (19), and the extension end of the second rotating rod (19) that passes through the fixed frame (18) is connected to the support plate (1).

5. A steel box girder U-rib positioning device according to claim 4, characterized in that: A limiting ring (20) is fixedly provided on the second rotating rod (19), and a limiting groove (21) is provided on the fixed frame (18) for the limiting ring (20) to rotate and connect. A rotating ball (22) is rotatably connected to the limiting ring (20), and the rotating ball (22) is slidably connected to the limiting groove (21).

6. The steel box girder U-rib positioning device according to claim 1, characterized in that: The connecting component includes a first connecting block (23) and a second connecting block (24). The first connecting block (23) is connected to the output end of the servo electric cylinder (7), and the second connecting block (24) is connected to the slider (8) and the first connecting plate (3) respectively. The first connecting block (23) and the second connecting block (24) are rotatably connected.

7. The steel box girder U-rib positioning device according to claim 1, characterized in that: The servo electric cylinder (7) is fixedly provided with a mounting plate (25) at its lower end, and the mounting plate (25) is provided with a mounting thread hole (26).

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