Steel structure bridge bottom plate pre-bending welding positioning tool

Abstract

The utility model belongs to the field of positioning tools, and particularly relates to a steel structure bridge bottom plate pre-bending welding positioning tool which comprises a control box, a supporting table is fixedly installed on the top of the control box, a containing groove is formed in the top of the supporting table, an arc-shaped positioning seat is placed in the containing groove, two connecting grooves are formed in the top of the supporting table, and the arc-shaped positioning seat is placed in the two connecting grooves. A fixed roller is rotatably mounted in the connecting groove, moving holes are formed in the four corners of the top of the supporting table, moving seats are slidably mounted in the moving holes, a same U-shaped plate is fixedly mounted between the two moving seats, a pressing roller is rotatably mounted in the U-shaped plate, the pressing roller is matched with the fixed roller, and a pulling mechanism is arranged in the control box. And the pulling mechanism is connected with the moving seat. The bottom plate bending device is reasonable in design, the fixing roller is matched with the pressing roller, the arc-shaped positioning seat moves upwards, and the bottom plate can be extruded and positioned, so that the bottom plate is bent to form an arch-shaped structure.

Description

Technical Field

[0001] The utility model relates to the technical field of positioning tooling, in particular to a pre-bending welding positioning tooling for a bottom plate of a steel structure bridge. Background Art

[0002] Steel structure bridges are an industry that has developed rapidly in recent years. Steel structure bridges have a short construction period, are light in weight, and can be constructed in sections simultaneously. They are a widely used construction method for overpasses.

[0003] At present, a steel structure bridge processing device is disclosed in a Chinese patent announcement with the announcement number CN218964505U, which includes an inverted L-shaped bracket plate, the inverted L-shaped bracket plate includes a bottom horizontal plate and a vertical plate, a bottom magnetic disk is fixedly installed between the inner side surfaces of the bottom horizontal plate away from the vertical plate, a side magnetic disk is fixedly installed between the inner side surfaces of the vertical plate close to the bottom horizontal plate, and a slide plate is fixedly installed between the inner side surfaces above the vertical plate. Through the coordinated arrangement of the bottom magnetic disk, the side magnetic disk and the clamping plate, the steel structure bridge processing device has the effect of being easy to install and remove, and through the coordinated arrangement of the bottom magnetic disk and the side magnetic disk, the steel structure bridge processing device has the effect of being easy to straighten the side plate that is not straight.

[0004] In actual production, it is found that during the welding process of steel structure bridges, it is often necessary to weld a large number of beams, ribs, etc. on the upper part of the bottom plate. After welding, due to the shrinkage and deformation of the welds, the bottom plate is seriously bent, which requires a lot of leveling. Some deformations are too serious and need to be reworked. Although reverse pre-bending of the bottom plate before bridge welding can overcome the upward shrinkage deformation, it is not convenient to bend, position and fix the bottom plate. Therefore, we proposed a pre-bending welding positioning tool for the bottom plate of a steel structure bridge to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a pre-bending welding positioning tool for a bottom plate of a steel structure bridge.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A pre-bending welding positioning tool for a steel structure bridge bottom plate comprises a control box, a support platform is fixedly installed on the top of the control box, a receiving groove is opened on the top of the support platform, and an arc-shaped positioning seat is placed in the receiving groove;

[0008] The top of the support platform is provided with two connecting grooves, in which fixed rollers are rotatably installed, and the top four corners of the support platform are provided with moving holes, in which moving seats are slidably installed, and the same U-shaped plate is fixedly installed between the two moving seats, and a pressing roller is rotatably installed in the U-shaped plate, and the pressing roller is adapted to the fixed roller;

[0009] A pulling mechanism is arranged in the control box, and the pulling mechanism is connected with the moving seat, and a pushing mechanism is arranged between the pulling mechanism and the arc-shaped positioning seat.

[0010] Preferably, the pulling mechanism includes a sliding seat and an articulated rod 1, the sliding seat is slidably mounted on the top inner wall of the control box, the bottom end of the articulated rod 1 is hinged to the sliding seat, and the top end of the articulated rod 1 is hinged to the corresponding moving seat.

[0011] Preferably, two sliding grooves are provided on the inner wall of the bottom of the control box, and the sliding grooves are slidably connected to the corresponding sliding seats.

[0012] Preferably, two limit rods are fixedly mounted on the inner walls on both sides of the control box, and the sliding seat sliding sleeve is arranged on the two limit rods.

[0013] Preferably, the pulling mechanism includes a rectangular hole, a rectangular seat and a second hinged rod. The rectangular hole is opened on the bottom inner wall of the storage groove. A rectangular seat fixedly connected to the arc-shaped positioning seat is slidably installed in the rectangular hole. The bottom end of the second hinged rod is hinged on the sliding seat, and the top end of the second hinged rod is hinged on the rectangular seat.

[0014] Preferably, a driving mechanism is provided in the control box, and the driving mechanism is connected to the two sliding seats.

[0015] Preferably, the driving mechanism includes a threaded rod and a driving motor, the threaded rod is rotatably mounted on the inner walls on both sides of the control box, the driving motor is fixedly mounted on the control box, the output shaft of the driving motor is fixedly connected to the threaded rod, and the sliding seat is threadedly sleeved on the threaded rod.

[0016] Preferably, the threaded rod is provided with two external threads with opposite rotation directions, the sliding seat is provided with an internal threaded hole, and the external thread is meshed with the corresponding internal threaded hole.

[0017] Beneficial effects of the utility model:

[0018] 1. When positioning the bottom plate of a steel structure bridge, place the bottom plate on the support platform so that the bottom plate passes through the fixed roller and the pressing roller. By starting the drive motor, the drive motor can drive the threaded rod to rotate, and the threaded rod can drive the two sliding seats to move toward each other. The sliding seat drives the moving seat, the U-shaped plate and the pressing roller to move downward through the hinged rod, and the bottom plate can be pressed and fixed by the pressing roller and the fixed roller;

[0019] 2. When the sliding seat moves, the sliding seat can push the rectangular seat upward through the hinge rod 2, and the rectangular seat can drive the arc-shaped positioning seat to move upward. At this time, the arc-shaped positioning seat can squeeze the bottom plate, so that the bottom plate bends to form an arched structure, and then the parts to be welded are placed on the bottom plate and welded. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of a pre-bending welding positioning tool for a steel structure bridge bottom plate proposed by the utility model;

[0021] Figure 2 This is a schematic diagram of the main structure of a pre-bending welding positioning tool for a steel structure bridge bottom plate proposed by the utility model;

[0022] Figure 3 It is a side view cross-sectional structural schematic diagram of a pre-bending welding positioning tool for a steel structure bridge bottom plate proposed by the utility model;

[0023] Figure 4 This is a schematic structural diagram of part A of a pre-bending welding positioning tool for a steel structure bridge bottom plate proposed by the utility model.

[0024] In the figure: 1. control box; 2. support table; 3. storage slot; 4. arc-shaped positioning seat; 5. connection slot; 6. fixed roller; 7. moving hole; 8. moving seat; 9. U-shaped plate; 10. clamping roller; 11. driving motor; 12. threaded rod; 13. sliding slot; 14. sliding seat; 15. hinged rod one; 16. rectangular hole; 17. rectangular seat; 18. hinged rod two. DETAILED DESCRIPTION

[0025] The technical solution of the utility model will be described clearly and completely below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Reference Figure 1-4A pre-bending welding positioning tool for a steel structure bridge bottom plate comprises a control box 1, a support platform 2 is fixedly installed on the top of the control box 1, a receiving groove 3 is opened on the top of the support platform 2, an arc-shaped positioning seat 4 is placed in the receiving groove 3, two connecting grooves 5 are opened on the top of the support platform 2, a fixed roller 6 is rotatably installed in the connecting groove 5, a moving hole 7 is opened at the four corners of the top of the support platform 2, a moving seat 8 is slidably installed in the moving hole 7, a same U-shaped plate 9 is fixedly installed between the two moving seats 8, a pressing roller 10 is rotatably installed in the U-shaped plate 9, and the pressing roller 10 is adapted to the fixed roller 6, a pulling mechanism is provided in the control box 1, and the pulling mechanism is connected to the moving seat 8, and a pushing mechanism is provided between the pulling mechanism and the arc-shaped positioning seat 4. When positioning the bottom plate of the steel structure bridge, the bottom plate is placed on the support platform 2 so that the bottom plate passes through between the fixed roller 6 and the pressing roller 10, and the bottom plate can be fixed by the pressing roller 10.

[0027] In this embodiment, the pulling mechanism includes a sliding seat 14 and a hinged rod 15. The sliding seat 14 is slidably installed on the top inner wall of the control box 1. The bottom end of the hinged rod 15 is hinged on the sliding seat 14, and the top end of the hinged rod 15 is hinged on the corresponding moving seat 8. By providing the hinged rod 15, the movement of the sliding seat 14 can drive the moving seat 8, the U-shaped plate 9 and the clamping roller 10 to move downward through the hinged rod 15.

[0028] In this embodiment, two sliding grooves 13 are provided on the inner wall at the bottom of the control box 1, and the sliding grooves 13 are slidably connected to the corresponding sliding seats 14. Two limit rods are fixedly installed on the inner walls on both sides of the control box 1, and the sliding seat 14 is slidably sleeved on the two limit rods. By providing the sliding grooves and the limit rods, the sliding seat 14 can be guided, thereby achieving the purpose of stable movement of the sliding seat 14.

[0029] In this embodiment, the pulling mechanism includes a rectangular hole 16, a rectangular seat 17 and a hinged rod 18. The rectangular hole 16 is opened on the bottom inner wall of the storage groove 3. A rectangular seat 17 fixedly connected to the arc-shaped positioning seat 4 is slidably installed in the rectangular hole 16. The bottom end of the hinged rod 18 is hinged on the sliding seat 14, and the top end of the hinged rod 18 is hinged on the rectangular seat 17. By providing the hinged rod 18, the movement of the sliding seat 14 is moved upward through the hinged rod 18.

[0030] In this embodiment, a driving mechanism is provided in the control box 1, and the driving mechanism is connected to two sliding seats 14. The driving mechanism includes a threaded rod 12 and a driving motor 11. The threaded rod 12 is rotatably installed on the inner walls of both sides of the control box 1, and the driving motor 11 is fixedly installed on the control box 1. The output shaft of the driving motor 11 is fixedly connected to the threaded rod 12. The sliding seat 14 is threadedly sleeved on the threaded rod 12. By providing the threaded rod 12, the rotation of the threaded rod 12 can drive the two sliding seats 14 to move. The threaded rod 12 is provided with two external threads with opposite rotation directions, and the sliding seat 14 is provided with an internal threaded hole, and the external thread is meshed with the corresponding internal threaded hole. By providing two external threads, the threaded rod 12 can drive the two sliding seats 14 to move, and the moving directions are opposite.

[0031] In the utility model, when the bottom plate of the steel structure bridge is positioned, the bottom plate is placed on the support platform 2 so that the bottom plate passes through the fixed roller 6 and the clamping roller 10. By starting the drive motor 11, the drive motor 11 can drive the threaded rod 12 to rotate, and the threaded rod 12 can drive the two sliding seats 14 to move in a direction close to each other. The sliding seat 14 drives the moving seat 8, the U-shaped plate 9 and the clamping roller 10 to move downward through the hinge rod 15. The clamping roller 10 and the fixed roller 6 can achieve the purpose of clamping and fixing the bottom plate. When the sliding seat 14 moves, the sliding seat 14 can push the rectangular seat 17 to move upward through the hinge rod 2 18, and the rectangular seat 17 can drive the arc-shaped positioning seat 4 to move upward. At this time, the arc-shaped positioning seat 4 can squeeze the bottom plate so that the bottom plate bends to form an arched structure. Then, the parts to be welded are placed on the bottom plate and welded.

[0032] The above is a detailed introduction to a pre-bending welding positioning tool for a steel structure bridge bottom plate provided by the utility model. This article uses specific embodiments to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A pre-bending welding positioning tool for a steel structure bridge bottom plate, characterized in that: It comprises a control box (1), a support platform (2) is fixedly mounted on the top of the control box (1), a storage groove (3) is provided on the top of the support platform (2), and an arc-shaped positioning seat (4) is placed in the storage groove (3); The top of the support platform (2) is provided with two connection grooves (5), a fixed roller (6) is rotatably mounted in the connection grooves (5), the top four corners of the support platform (2) are provided with movable holes (7), a movable seat (8) is slidably mounted in the movable hole (7), a same U-shaped plate (9) is fixedly mounted between the two movable seats (8), a pressing roller (10) is rotatably mounted in the U-shaped plate (9), and the pressing roller (10) is adapted to fit the fixed roller (6); A pulling mechanism is provided in the control box (1), and the pulling mechanism is connected to the moving seat (8), and a pushing mechanism is provided between the pulling mechanism and the arc-shaped positioning seat (4).

2. The pre-bending welding and positioning tool for the bottom plate of a steel structure bridge according to claim 1 is characterized in that: The pulling mechanism comprises a sliding seat (14) and an articulated rod (15); the sliding seat (14) is slidably mounted on the top inner wall of the control box (1); the bottom end of the articulated rod (15) is hinged on the sliding seat (14); and the top end of the articulated rod (15) is hinged on the corresponding moving seat (8).

3. The pre-bending welding and positioning tool for the bottom plate of a steel structure bridge according to claim 2 is characterized in that: Two sliding grooves (13) are provided on the inner wall of the bottom of the control box (1), and the sliding grooves (13) are slidably connected to corresponding sliding seats (14).

4. The pre-bending welding and positioning tool for the bottom plate of a steel structure bridge according to claim 2 is characterized in that: Two limit rods are fixedly mounted on the inner walls on both sides of the control box (1), and the sliding seat (14) is slidably sleeved on the two limit rods.

5. The pre-bending welding and positioning tool for steel structure bridge bottom plate according to claim 1 is characterized in that: The pulling mechanism comprises a rectangular hole (16), a rectangular seat (17) and a second hinged rod (18); the rectangular hole (16) is formed on the bottom inner wall of the storage groove (3); a rectangular seat (17) fixedly connected to the arc-shaped positioning seat (4) is slidably mounted in the rectangular hole (16); the bottom end of the second hinged rod (18) is hinged on the sliding seat (14); and the top end of the second hinged rod (18) is hinged on the rectangular seat (17).

6. The pre-bending welding and positioning tool for steel structure bridge bottom plate according to claim 1 is characterized in that: A driving mechanism is provided in the control box (1), and the driving mechanism is connected to two sliding seats (14).

7. The pre-bending welding and positioning tool for the bottom plate of a steel structure bridge according to claim 6 is characterized in that: The driving mechanism comprises a threaded rod (12) and a driving motor (11); the threaded rod (12) is rotatably mounted on inner walls on both sides of the control box (1); the driving motor (11) is fixedly mounted on the control box (1); an output shaft of the driving motor (11) is fixedly connected to the threaded rod (12); and the sliding seat (14) is threadably sleeved on the threaded rod (12).

8. The pre-bending welding and positioning tool for the bottom plate of a steel structure bridge according to claim 7 is characterized in that: The threaded rod (12) is provided with two external threads with opposite rotation directions, the sliding seat (14) is provided with an internal thread hole, and the external thread is meshed with the corresponding internal thread hole.

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