Bridge steel box girder node welding device

Abstract

The utility model belongs to the technical field of node welding equipment, and particularly relates to a bridge steel box girder node welding device which comprises a vertical fixing frame, a sliding rail frame is fixedly installed on the front face of the vertical fixing frame, an installation frame is installed on the vertical fixing frame in a sliding mode through the sliding rail frame, and the installation frame is rotationally connected with a first shaft rotating rod through a bearing. A welding gun is fixedly mounted at the lower end of the first shaft rotating rod, and a driving mechanism used for rotating the first shaft rotating rod is connected between the mounting frame and the first shaft rotating rod. By adopting the design that the driving motor is combined with the belt transmission system, the multi-angle rotary welding of the welding gun is realized, and the welding flexibility and precision are greatly improved; meanwhile, the distance and the angle between the welding gun and the welding part can be accurately controlled in cooperation with the vertical adjusting function of the hydraulic cylinder, and the consistency and the stability of the welding quality are ensured; according to the efficient welding mode, the welding period is shortened, the rework rate caused by welding errors is reduced, and therefore the overall working efficiency is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of node welding equipment technology, and in particular to a node welding device for bridge steel box girders. Background Technology

[0002] In the field of bridge steel structure manufacturing, especially in the welding process of steel box girder joints, existing welding technologies face many challenges. First, traditional welding methods are usually limited to fixed welding angles and positions, making it difficult to flexibly cope with the complex and ever-changing welding requirements in bridge steel structures, resulting in low welding efficiency and easy welding errors.

[0003] Secondly, for large bridge steel box girder structures, the weld locations often involve multiple directions and angles. Traditional welding equipment is inadequate when adjusting the welding torch position, which not only increases the difficulty of operation but also affects the welding quality and stability. In addition, with the increasing complexity and refinement of bridge steel structure design, the requirements for welding precision are also getting higher and higher. However, existing welding equipment still has shortcomings in accurately controlling welding parameters and ensuring consistent welding quality, making it difficult to meet the high-quality welding needs of modern bridge construction. Therefore, we provide a bridge steel box girder joint welding device. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a welding device for steel box girder nodes in bridges, which more accurately solves the problems mentioned in the background art.

[0005] This utility model is achieved through the following technical solution:

[0006] The utility model proposes a welding device for steel box girder nodes of a bridge, including a support frame, a slide rail frame fixedly installed on the front of the support frame, an mounting frame slidably installed on the support frame via the slide rail frame, a first rotating shaft rotatably connected to the mounting frame via a bearing, a welding gun fixedly installed at the lower end of the first rotating shaft, a drive mechanism for rotating the first rotating shaft connected between the mounting frame and the first rotating shaft, and a lateral movement structure for lateral movement of the support frame installed at the lower end of the support frame.

[0007] The drive mechanism includes a shaft rod 2 that is rotatably connected to a mounting frame via a bearing. A drive motor is fixedly mounted on the upper end of the mounting frame, and the output end of the drive motor is fixedly connected to the upper end of the shaft rod 2. A pulley 1 is fixedly mounted on the periphery of the shaft rod 2, and a pulley 2 is fixedly connected to the periphery of the shaft rod 1. A linkage belt is wound around the periphery of the pulley 1 and the pulley 2.

[0008] Furthermore, the transverse structure includes a base plate installed at the lower end of the upright frame. A T-shaped groove is transversely formed on the upper surface of the base plate. A T-shaped slider is fixedly installed at the lower end of the upright frame, and the T-shaped slider is slidably connected to the inner wall of the T-shaped groove. A guide locking component is connected between the upright frame and the base plate.

[0009] Furthermore, the guide locking component includes a guide frame fixedly connected to the side of the base plate, a connecting rod fixedly installed on the back of the support frame, a sleeve rod fixedly connected to the end of the connecting rod, and the sleeve rod slidably sleeved on the periphery of the guide frame, a U-shaped block fixedly connected to the side of the sleeve rod, and a torsion screw threadedly connected to the top of the U-shaped block.

[0010] Furthermore, a hydraulic cylinder is fixedly installed on the front of the upright frame, and a connecting plate is fixedly installed at the end of the mounting frame. The output end of the hydraulic cylinder is fixedly connected to the connecting plate to drive the mounting frame to move up and down.

[0011] Furthermore, the end of the tightening screw penetrates the side wall of the sleeve rod and abuts against the surface of the guide frame to restrict the sleeve rod from continuing to move around the periphery of the guide frame.

[0012] Furthermore, an mounting block is fixedly installed at the end of the base plate, and the surface of the mounting block is provided with a placement groove for screws.

[0013] The beneficial effects of this utility model are:

[0014] This invention, through the design of combining a drive motor and a belt transmission system, enables multi-angle rotation welding of the welding torch, greatly improving the flexibility and precision of welding. At the same time, with the up-and-down adjustment function of the hydraulic cylinder, the distance and angle between the welding torch and the welding part can be precisely controlled, ensuring the consistency and stability of welding quality. This efficient welding method not only shortens the welding cycle but also reduces the rework rate caused by welding errors, thereby significantly improving overall work efficiency.

[0015] This invention, through its transverse structure design, allows the welding gun to be flexibly adjusted laterally in the horizontal direction. This feature greatly expands the range and adaptability of welding operations, enabling the welding gun to easily meet welding needs at different positions and angles. Operators can easily adjust the position of the welding gun according to the specific welding task to achieve precise docking and efficient welding. Attached Figure Description

[0016] Figure 1 This is a three-dimensional first view of one embodiment of the present utility model;

[0017] Figure 2 This is a second structural view of one embodiment of the present invention;

[0018] Figure 3 This is a structural cross-sectional view of a mounting bracket according to an embodiment of the present invention;

[0019] Figure 4 This is a cross-sectional view of the connection structure between the sleeve rod and the U-shaped block in one embodiment of the present invention.

[0020] In the diagram: 1. Erecting frame; 2. Slide rail frame; 3. Mounting frame; 4. Shaft rotating rod one; 5. Welding torch; 6. Shaft rotating rod two; 7. Drive motor; 8. Belt pulley one; 9. Belt pulley two; 10. Linkage belt; 11. Hydraulic cylinder; 12. Connecting plate; 13. Base plate; 14. T-shaped slide; 15. T-shaped slider; 16. Guide frame; 17. Connecting rod; 18. Sleeve rod; 19. U-shaped block; 20. Torque screw. Detailed Implementation

[0021] To more clearly and completely illustrate the technical solution of this utility model, the following description, in conjunction with the accompanying drawings, will further explain this utility model.

[0022] Example

[0023] like Figures 1-4 As shown in the figure, an embodiment of the present invention proposes a bridge steel box girder node welding device, the overall structure of which includes a support frame 1, a slide rail frame 2, a mounting frame 3, a shaft rotating rod 4, a welding gun 5, a shaft rotating rod 6, a drive motor 7, a belt pulley 8, a belt pulley 9, a linkage belt 10, a hydraulic cylinder 11, a connecting plate 12, a base plate 13, a T-shaped slide groove 14, a T-shaped slider 15, a guide frame 16, a connecting rod 17, a sleeve rod 18, a U-shaped block 19, and a torsion bolt 20.

[0024] First, the upright frame 1 is fixed in the working area to ensure it is stable and does not shake. A slide rail frame 2 is installed on the front of the upright frame 1, ensuring it is horizontal and stable. The mounting frame 3 is slidably installed on the upright frame 1 via the slide rail frame 2, ensuring it can move smoothly on the slide rail. A shaft rotating rod 4 is rotatably connected to the mounting frame 3 via a bearing, and a welding torch 5 is fixedly installed at the lower end of the shaft rotating rod 4. A second shaft rotating rod 6 is rotatably connected to the mounting frame 3 via a bearing, and a drive motor 7 is fixedly installed at the upper end of the mounting frame 3. The output end of the drive motor 7 is fixedly connected to the upper end of the second shaft rotating rod 6. A pulley 8 and a pulley 9 are fixedly installed on the periphery of the second shaft rotating rod 6 and the first shaft rotating rod 4, respectively. A linkage belt 10 is used to connect the two to achieve power transmission.

[0025] Furthermore, a base plate 13 is installed at the lower end of the upright frame 1, and a T-shaped groove 14 is horizontally opened on the upper surface of the base plate 13; a T-shaped slider 15 is fixed at the lower end of the upright frame 1 to ensure that the T-shaped slider 15 can slide smoothly in the T-shaped groove 14; a guide frame 16 is fixedly installed on the side of the base plate 13; a connecting rod 17 is fixed on the back of the upright frame 1, and a sleeve rod 18 is fixed at the end of the connecting rod 17 so that the sleeve rod 18 slides around the periphery of the guide frame 16; a U-shaped block 19 is fixed on the side of the sleeve rod 18, and a torsion screw 20 is threaded to the top of the U-shaped block 19 to adjust and lock the position of the sleeve rod 18; furthermore, a protective cover or baffle can be set around the welding torch 5 to prevent spatter from injuring people during the welding process and to ensure the safety of the operators; temperature sensors and overheat protection devices are installed in the key parts of the entire welding device, and the power is automatically cut off immediately once an abnormal high temperature is detected to prevent equipment damage or fire.

[0026] The base plate 13 has a mounting block fixedly installed at its end, and a mounting groove for placing screws is opened on the surface of the mounting block so that the base plate 13 can be firmly installed on the ground of the working area, ensuring that the entire welding device will not be displaced due to external factors during operation.

[0027] Furthermore, a hydraulic cylinder 11 is fixedly installed on the front of the upright frame 1, and a connecting plate 12 is fixedly installed at the end of the mounting frame 3; the output end of the hydraulic cylinder 11 is fixedly connected to the connecting plate 12 so that the mounting frame 3 can be driven to move up and down by the hydraulic cylinder 11.

[0028] The working principle of this utility model is as follows: The drive motor 7 is started, which drives the shaft rod 4 to rotate through belt transmission, thereby causing the welding gun 5 to perform rotational welding. As needed, the height of the welding gun 5 is adjusted by the hydraulic cylinder 11 to adapt to the welding requirements of different positions. The T-shaped slider 15 at the lower end of the sliding support frame 1 moves in the T-shaped groove 14 to realize the lateral movement of the welding device. When it moves to the required position, the end of the torsion screw 20 is rotated to abut against the surface of the guide frame 16 to lock the position. The sliding cooperation between the guide frame 16 and the sleeve rod 18 ensures the stability of the support frame 1 during movement. The position of the support frame 1 is accurately fixed by adjusting the tightness of the torsion screw 20.

[0029] Finally, it should be noted that the basic concepts have been described above. Obviously, for those skilled in the art, the detailed disclosure above is merely illustrative and does not constitute a limitation of this specification. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and corrections to this specification. Such modifications, improvements, and corrections are suggested in this specification, and therefore remain within the spirit and scope of the exemplary embodiments of this specification. Furthermore, this specification uses specific terms to describe embodiments of this specification. For example, "an embodiment," "one embodiment," and / or "some embodiments" refer to a feature, structure, or characteristic associated with at least one embodiment of this specification. Therefore, it should be emphasized and noted that "an embodiment," "one embodiment," or "an alternative embodiment" mentioned twice or more in different locations in this specification do not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of this specification can be appropriately combined. Moreover, unless expressly stated in the claims, the order of processing elements and sequences, the use of numbers and letters, or other names described in this specification are not intended to limit the order of the processes and methods of this specification.

[0030] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A bridge steel box girder joint welding device, comprising a vertical support frame (1), the front surface of the vertical support frame (1) is fixedly installed with a sliding rail frame (2), the vertical support frame (1) is slidably installed with a mounting frame (3) through the sliding rail frame (2), the mounting frame (3) is rotatably connected with a shaft rotating rod one (4) through a bearing, and the lower end of the shaft rotating rod one (4) is fixedly installed with a welding gun (5), characterized in that, The mounting frame (3) and the shaft rotating rod one (4) are connected with a driving mechanism for rotating the shaft rotating rod one (4); the lower end of the vertical support frame (1) is provided with a transverse moving structure for transversely moving the vertical support frame (1). The driving mechanism comprises a shaft rotating rod two (6) rotatably connected to the mounting frame (3) through a bearing, the upper end of the mounting frame (3) is fixedly provided with a driving motor (7), the output end of the driving motor (7) is fixedly connected to the upper end of the shaft rotating rod two (6), the periphery of the shaft rotating rod two (6) is fixedly provided with a belt pulley one (8), the periphery of the shaft rotating rod one (4) is fixedly connected with a belt pulley two (9), and the periphery of the belt pulley one (8) and the belt pulley two (9) is wound with a linkage belt (10).

2. The bridge steel box girder joint welding device according to claim 1, characterized in that, The transverse moving structure comprises a base plate (13) mounted at the lower end of the vertical support frame (1), the upper end surface of the base plate (13) is transversely provided with a T-shaped sliding groove (14), the lower end of the vertical support frame (1) is fixedly provided with a T-shaped sliding block (15) which is slidingly connected to the inner wall of the T-shaped sliding groove (14), and a guide locking component is connected between the vertical support frame (1) and the base plate (13).

3. The bridge steel box girder joint welding device according to claim 2, characterized in that, The guide locking component comprises a guide frame (16) fixedly connected to the side of the base plate (13), the back surface of the vertical support frame (1) is fixedly provided with a connecting rod (17), the end of the connecting rod (17) is fixedly connected with a sleeving rod (18) which is slidingly sleeved on the periphery of the guide frame (16), the side of the sleeving rod (18) is fixedly connected with a U-shaped block (19), and the top end of the U-shaped block (19) is threadedly connected with a clamping screw (20).

4. The bridge steel box girder joint welding device according to claim 1, characterized in that, The front surface of the vertical support frame (1) is fixedly provided with a hydraulic cylinder (11), the end of the mounting frame (3) is fixedly provided with a connecting plate (12), and the output end of the hydraulic cylinder (11) is fixedly connected with the connecting plate (12) for driving the mounting frame (3) to move up and down.

5. The bridge steel box girder joint welding device according to claim 3, characterized in that, The end of the clamping screw (20) penetrates through the side wall of the sleeving rod (18) and is in abutting connection with the surface of the guide frame (16) for limiting the sleeving rod (18) from continuously moving on the periphery of the guide frame (16).

6. The bridge steel box girder joint welding device according to claim 2, characterized in that, The end of the base plate (13) is fixedly provided with a mounting block, and the surface of the mounting block is provided with a placing groove for placing a screw.

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