Overturning and shifting device for welding box beam
By designing a flipping and repositioning device for box girder welding, and adopting a multi-drive motor and gear worm gear transmission system, the precise positioning and stable flipping of the box girder were achieved. This solved the problem that traditional manual operation could not meet the problem of precise adjustment, and improved welding quality and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN JUREN CRANE CO LTD
- Filing Date
- 2025-05-06
- Publication Date
- 2026-05-12
AI Technical Summary
In the existing technology, manual operation during the welding of box girders makes it difficult to guarantee the accuracy and consistency of the position, resulting in high labor intensity. Furthermore, traditional equipment cannot meet the precise adjustment of position and angle required by complex welding processes, affecting welding quality and production efficiency.
A flipping and repositioning device for welding box girders was designed. It adopts multiple drive motors and gear and worm gear transmission systems, combined with electric telescopic rods and support blocks, to achieve precise positioning and stable flipping of box girders. Through the cooperation of multiple drive motors and gear systems, precise adjustment of position and angle can be achieved.
It achieves efficient and precise positioning and stable rotation of box girders, improves welding quality and production efficiency, reduces labor intensity, and meets the needs of complex welding processes.
Smart Images

Figure CN224223126U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mechanical processing technology, and in particular to a flipping and repositioning device for welding box beams. Background Technology
[0002] In modern industrial manufacturing, box girders play a crucial role in fields such as construction, bridges, and machinery manufacturing. With industry development, the requirements for welding quality and production efficiency of box girders have gradually increased. In the early days, welding was done manually, involving handling and adjusting the position of the box girders. This not only consumed a large amount of manpower, but also, due to the limitations of manual operation, it was difficult to guarantee the accuracy and consistency of the position. Frequent adjustments by workers resulted in high labor intensity, fatigue, and errors, leading to quality problems such as uneven welds and insufficient weld strength.
[0003] Meanwhile, as engineering projects expand in scale, the requirements for structural safety increase. Traditional fixed fixtures or simple flipping equipment cannot meet the precise adjustment of the position and angle of box girders required by complex welding processes. In addition, intense market competition requires companies to improve production efficiency and reduce costs. However, traditional operation modes are slow in welding speed and require frequent equipment adjustments, which restricts the improvement of production efficiency. Therefore, the development of a flipping and repositioning device that can accurately adjust the position and angle of box girders, with a high degree of automation and stable reliability, has become a key problem that urgently needs to be solved in the field of box girder welding. This is the technical background for the emergence of this device. Utility Model Content
[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a flipping and repositioning device for welding box beams, which features highly flexible position adjustment, precise flipping control, and stable and reliable support and fixation.
[0005] This utility model also provides a tilting and repositioning device for welding box beams, comprising a top plate, a first drive motor fixedly connected to the upper surface of the top plate, a gear column fixedly connected to the output end of the first drive motor, a rack meshing with the outer surface of the gear column, a connecting plate fixedly connected to the lower end of the rack, a first guide rail fixedly connected to the lower surface of the connecting plate, a first slide rod slidably connected to the inner wall of the first guide rail, a second guide rail fixedly connected to the lower surface of the first slide rod, a second slide rod slidably connected to the inner wall of the second guide rail, a connecting member fixedly connected to the lower surface of the second slide rod, a disc fixedly connected to the front end of the connecting member, a turntable rotatably connected to the inside of the disc, and a support leg fixedly connected to the lower end of the top plate, with a caster wheel provided at the lower end of the support leg.
[0006] According to the aforementioned box girder welding flipping and positioning device, a fourth drive motor is fixedly connected to the side end of the first guide rail, and a worm gear is fixedly connected to the output end of the fourth drive motor.
[0007] According to the aforementioned box girder welding flipping and positioning device, the outer surface of the worm gear is meshed with a worm wheel, the inner wall of the worm wheel is fixedly connected with a positive and negative threaded rod, and the outer surface of the positive and negative threaded rod is threadedly connected to the first slide rod.
[0008] According to the aforementioned box girder welding flipping and positioning device, a second drive motor is fixedly connected to the upper surface of the first slide rod, and a threaded rod is fixedly connected to the output end of the second drive motor, with the outer surface of the threaded rod being threadedly connected to the second slide rod.
[0009] According to the aforementioned box girder welding flipping and positioning device, a third drive motor is fixedly connected to the rear end of the connector, a rotating shaft is fixedly connected to the output end of the third drive motor, and the front end of the rotating shaft is fixedly connected to the turntable.
[0010] According to the aforementioned box girder welding flipping and repositioning device, a storage box is fixedly connected to the front end of the turntable, and placement slots are provided inside the four sides of the storage box.
[0011] According to the aforementioned box girder welding flipping and repositioning device, an electric telescopic rod is fixedly connected to the bottom of the placement groove, and a support block is fixedly connected to the front end of the electric telescopic rod.
[0012] According to the aforementioned box girder welding flipping and repositioning device, the number of electric telescopic rods is four and they are evenly distributed in the placement slots inside the storage box, and the number of support blocks is four and they correspond one-to-one with the electric telescopic rods.
[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments;
[0015] Figure 1 This is an overall structural diagram of a tilting and repositioning device for welding box beams according to this utility model;
[0016] Figure 2 This is an internal structural diagram of a flipping and repositioning device for welding box beams according to this utility model;
[0017] Figure 3 This is a diagram of the first sliding rod telescopic structure of a tilting and repositioning device for welding box beams according to this utility model;
[0018] Figure 4 This is a diagram of the support structure of a tilting and repositioning device for welding box beams according to this utility model.
[0019] Legend:
[0020] 1. Top plate; 2. Support legs; 3. Casters; 4. First drive motor; 5. Gear column; 6. Rack; 7. Connecting plate; 8. First guide rail; 9. Threaded rods (positive and negative); 10. First slide rod; 11. Second drive motor; 12. Second guide rail; 13. Second slide rod; 14. Threaded rod; 15. Third drive motor; 16. Connector; 17. Rotating shaft; 18. Turntable; 19. Storage box; 20. Placement slot; 21. Electric telescopic rod; 22. Support block; 23. Fourth drive motor; 24. Worm gear; 25. Worm wheel; 26. Disc. Detailed Implementation
[0021] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0022] Reference Figure 1-4 This utility model discloses a tilting and repositioning device for welding box-girder beams, comprising a top plate 1. A first drive motor 4 is fixedly connected to the upper surface of the top plate 1. A gear column 5 is fixedly connected to the output end of the first drive motor 4. A rack 6 is meshed with the outer surface of the gear column 5. A connecting plate 7 is fixedly connected to the lower end of the rack 6. A first guide rail 8 is fixedly connected to the lower surface of the connecting plate 7. A first slide rod 10 is slidably connected to the inner wall of the first guide rail 8. A second guide rail 12 is fixedly connected to the lower surface of the first slide rod 10. A second slide rod is slidably connected to the inner wall of the second guide rail 12. 13. A connector 16 is fixedly connected to the lower surface of the second slide rod 13. A disc 26 is fixedly connected to the front end of the connector 16. A turntable 18 is rotatably connected inside the disc 26. A support leg 2 is fixedly connected to the lower end of the top plate 1. A caster wheel 3 is provided at the lower end of the support leg 2. A fourth drive motor 23 is fixedly connected to the side end of the first guide rail 8. A worm gear 24 is fixedly connected to the output end of the fourth drive motor 23, providing a power source for the movement of the first slide rod 10. By setting the fourth drive motor 23 and the worm gear 24 at the side end of the first guide rail 8, the power transmission process is started.
[0023] A worm gear 25 is meshed with the outer surface of the worm 24. A positive and negative threaded rod 9 is fixedly connected to the inner wall of the worm gear 25. The outer surface of the positive and negative threaded rod 9 is threadedly connected to the first slide rod 10. A second drive motor 11 is fixedly connected to the upper surface of the first slide rod 10. A threaded rod 14 is fixedly connected to the output end of the second drive motor 11. The outer surface of the threaded rod 14 is threadedly connected to the second slide rod 13. With the help of the second drive motor 11 and the threaded rod 14 on the first slide rod 10, the second slide rod 13 can move up and down within the second guide rail 12 to precisely adjust its vertical position to align with the center of the box girder. A third drive motor 15 is fixedly connected to the rear end of the connecting piece 16. The output end of the 5 is fixedly connected to a rotating shaft 17. The front end of the rotating shaft 17 is fixedly connected to a turntable 18. The front end of the turntable 18 is fixedly connected to a storage box 19. The storage box 19 has placement slots 20 inside its four sides. The bottom of the placement slots 20 is fixedly connected to an electric telescopic rod 21. The front end of the electric telescopic rod 21 is fixedly connected to a support block 22. There are four electric telescopic rods 21, which are evenly distributed in the placement slots 20 inside the storage box 19. There are four support blocks 22, which correspond one-to-one with the electric telescopic rods 21. The number and distribution of the electric telescopic rods 21 and support blocks 22 enable the box girder to obtain uniform support when it is flipped, thereby improving stability and balance.
[0024] Working principle: Using the casters 3 at the bottom of the support legs 2 under the top plate 1, the entire box girder welding flipping and positioning device is moved to the position to be welded, completing the initial positioning of the device and preparing for subsequent operations. The first drive motor 4 is started, and its output end drives the gear column 5 to rotate. Since the gear column 5 meshes with the rack 6, the rotation of the gear column 5 drives the rack 6 to move downward, thereby driving the connecting plate 7 connected to it to move downward together. At this time, the first guide rail 8 installed on the lower surface of the connecting plate 7 also moves downward. Then, the fourth drive motor 23 on the side of the first guide rail 8 is started. The worm 24 at the output end of the fourth drive motor 23 rotates. The worm 24 meshes with the worm wheel 25, driving the worm wheel 25 to rotate. The positive and negative threaded rods 9 fixedly connected to the inner wall of the worm wheel 25 rotate accordingly.
[0025] Because the positive and negative threaded rods 9 are threadedly connected to the first slide rod 10, the first slide rod 10 at both ends moves horizontally outward on the inner wall of the first guide rail 8. The lower surface of the first slide rod 10 is fixedly connected to the second guide rail 12. As the first slide rod 10 moves, the second guide rail 12 also moves accordingly. The second drive motor 11 on the upper surface of the first slide rod 10 is started, and the threaded rod 14 at its output end rotates. Because the threaded rod 14 is threadedly connected to the second slide rod 13, the second slide rod 13 moves downward on the inner wall of the second guide rail 12. The operator observes and controls the second slide rod 13 to stop precisely at the center position of both ends of the box beam. Then, the fourth drive motor 23 is started again and rotated in the opposite direction, driving the positive and negative threaded rods 9 to reverse, causing the first slide rod 10 to drive the second guide rail 12 to move back. At this time, the disc 26 at the front end of the connector 16 connected to the lower surface of the second slide rod 13, the turntable 18 rotatably connected to it, and the storage box 19 at the front end of the turntable 18 all enter the interior of the box beam.
[0026] The storage box 19 has four side slots 20 with electric telescopic rods 21 fixedly connected to their bottoms. When the storage box 19 enters the box beam, the electric telescopic rods 21 are activated. The support block 22 at the front end of the electric telescopic rod 21 extends outwards until it is in close contact with the inner wall of the box beam, thus providing stable support and fixation for the box beam. This ensures the box beam remains stable during subsequent flipping and prevents swaying or displacement. The first drive motor 4 is then activated again to flip the box beam. The gear column 5 drives the rack 6 upwards, which in turn drives the connecting plate 7, the first guide rail 8, the first slide rod 10, the second guide rail 12, the second slide rod 13, and the connecting plate 7. The connector 16, disc 26, turntable 18, storage box 19, and box beam fixed in storage box 19 are all lifted upwards together. This is to prevent the box beam from colliding with surrounding equipment or the ground when it is flipped later. After the box beam is lifted to a suitable height, the third drive motor 15 at the rear end of connector 16 is started. The rotating shaft 17 at the output end of the third drive motor 15 rotates. Since the front end of the rotating shaft 17 is fixedly connected to the turntable 18, it drives the turntable 18, the storage box 19 fixed on it, and the box beam to rotate together, so as to realize the flipping of the box beam to meet the requirements of different welding positions and angles.
[0027] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A flipping and repositioning device for welding box beams, characterized in that, include: A top plate (1) is provided, on the upper surface of which a first drive motor (4) is fixedly connected. A gear column (5) is fixedly connected to the output end of the first drive motor (4). A rack (6) is meshed with the outer surface of the gear column (5). A connecting plate (7) is fixedly connected to the lower end of the rack (6). A first guide rail (8) is fixedly connected to the lower surface of the connecting plate (7). A first slide rod (10) is slidably connected to the inner wall of the first guide rail (8). The lower surface of the top plate (1) is fixedly connected to a second guide rail (12), the inner wall of the second guide rail (12) is slidably connected to a second slide rod (13), the lower surface of the second slide rod (13) is fixedly connected to a connector (16), the front end of the connector (16) is fixedly connected to a disc (26), the inside of the disc (26) is rotatably connected to a turntable (18), the lower end of the top plate (1) is fixedly connected to a support leg (2), and the lower end of the support leg (2) is provided with a universal wheel (3).
2. The flipping and repositioning device for welding box girders according to claim 1, characterized in that, The first guide rail (8) is fixedly connected to a fourth drive motor (23) at its side end, and the output end of the fourth drive motor (23) is fixedly connected to a worm gear (24).
3. The flipping and repositioning device for welding box girders according to claim 2, characterized in that, The outer surface of the worm (24) is meshed with a worm wheel (25), and the inner wall of the worm wheel (25) is fixedly connected with a positive and negative threaded rod (9). The outer surface of the positive and negative threaded rod (9) is threadedly connected to the first slide rod (10).
4. The flipping and repositioning device for welding box girders according to claim 1, characterized in that, The upper surface of the first slide rod (10) is fixedly connected to a second drive motor (11), and the output end of the second drive motor (11) is fixedly connected to a threaded rod (14). The outer surface of the threaded rod (14) is threadedly connected to the second slide rod (13).
5. The flipping and repositioning device for welding box girders according to claim 1, characterized in that, The rear end of the connector (16) is fixedly connected to a third drive motor (15), the output end of the third drive motor (15) is fixedly connected to a rotating shaft (17), and the front end of the rotating shaft (17) is fixedly connected to a turntable (18).
6. The flipping and repositioning device for welding box girders according to claim 1, characterized in that, The front end of the turntable (18) is fixedly connected to a storage box (19), and the storage box (19) has placement slots (20) inside its four sides.
7. A flipping and repositioning device for welding box girders according to claim 6, characterized in that, An electric telescopic rod (21) is fixedly connected to the bottom of the placement slot (20), and a support block (22) is fixedly connected to the front end of the electric telescopic rod (21).
8. A flipping and repositioning device for welding box girders according to claim 7, characterized in that, The number of electric telescopic rods (21) is four, and they are evenly distributed in the placement slots (20) inside the storage box (19). The number of support blocks (22) is four, and they correspond one-to-one with the electric telescopic rods (21).