Movable pressing device for welding box beam

Abstract

The utility model discloses a movable pressing device for welding a box beam, which comprises a base, the base is connected with a pedestal through a connecting piece, a first driving motor is arranged in the pedestal, a threaded column can be driven to rotate through a series of transmission, a supporting plate connected with a threaded sleeve is lifted, and a second driving motor is arranged on the pedestal and used for stabilizing the device. A clamping plate and a clamping block are driven to move through a worm, a worm gear, a transmission shaft, a gear column and a driving rack, pressing of a box beam is achieved, universal wheels below the base facilitate movement of the device, a fixing rod and a placing plate on the pedestal are used for placing the box beam, and through the structure, the device has the functions of convenient movement, stable fixation and accurate pressing of the box beam, and the device is convenient to use. The box beam welding efficiency and quality are effectively improved, and the box beam welding device is suitable for various box beam welding operation scenes.

Description

Technical Field

[0001] This utility model relates to the field of mechanical manufacturing and metal processing technology, and in particular to a movable clamping device for welding box beams. Background Technology

[0002] Traditional methods of box girder welding face numerous challenges. In the past, welding equipment was often fixed in a specific location, requiring the box girder to be transported to the equipment. This transportation process consumed significant manpower, resources, and time, resulting in extremely low efficiency. Furthermore, different specifications of box girder required different fixtures, leading to poor versatility and frequent fixture changes that increased costs and disrupted production schedules. During welding, the equipment was susceptible to vibration, causing box girder displacement and compromising weld quality. In addition, the operation was complex, demanding high worker skills and requiring lengthy training periods for new employees. To address these issues, a movable clamping device for box girder welding was developed, aiming to improve welding efficiency, ensure quality, reduce costs, and enhance versatility, meeting the high-efficiency and precise requirements of modern industry for box girder welding. Utility Model Content

[0003] 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 movable clamping device for welding box beams. The device is fixed in a stable manner by using a first drive motor to drive a series of transmission components to lower the support plate and make it in close contact with the ground. The device is fixed by friction. This method can effectively resist the vibration and external force generated during the welding process, prevent the device from shifting, ensure the stability of the welding operation, greatly improve the welding quality, and reduce weld defects caused by device shaking.

[0004] The precise and efficient clamping function, driven by a second drive motor and a worm gear and rack transmission system, can accurately control the movement of the clamping plate and clamping block. It can flexibly adjust the clamping position and force according to the size of the box girder, ensuring that tight and uniform clamping can be achieved for box girder of different specifications. It has strong versatility and reduces the problem of workpiece deformation or weak welding caused by improper clamping.

[0005] This utility model also provides a movable clamping device for welding box beams, comprising: a base, a platform fixedly connected to the upper end of the base via a connector, a first drive motor disposed inside the platform, a second helical gear fixedly connected to the output end of the first drive motor, a first helical gear meshing with the outer surface of the second helical gear, a first rotating shaft fixedly connected to the inner wall of the first helical gear, a threaded column fixedly connected to the lower end of the first rotating shaft, a second drive motor fixedly connected to the upper surface of the platform, a second rotating shaft fixedly connected to the output end of the second drive motor, a worm gear meshing with the outer surface of the second rotating shaft via a worm, a transmission shaft fixedly connected to the inner wall of the worm gear, and gear columns fixedly connected to both ends of the transmission shaft.

[0006] According to the movable clamping device for welding box beams, the outer surface of the threaded column is threaded with a threaded sleeve, and the lower surface of the threaded sleeve is fixedly connected with a support plate.

[0007] According to the movable clamping device for welding box beams, a guide rod is fixedly connected to the upper end of the support plate, and the outer side of the guide rod is slidably connected to the inner wall of the platform.

[0008] According to the movable clamping device for welding box beams, a slide rail is fixedly connected to the upper surface of the platform, a rack is slidably connected to the inner wall of the slide rail, and the outer surface of the rack meshes with a gear column.

[0009] According to the movable clamping device for welding box beams, a clamping plate is fixedly connected to the upper surface of the rack end, and a clamping block is fixedly connected to the front end of the clamping plate.

[0010] According to the movable clamping device for welding box beams, the input end of the first drive motor is electrically connected to an external power source, and the input end of the second drive motor is also electrically connected to an external power source.

[0011] According to the movable clamping device for welding box beams, the lower surface of the base is fixedly connected with four casters that are evenly distributed on the lower surface of the base.

[0012] According to the movable clamping device for welding box beams, a fixing rod is fixedly connected to the upper surface of the platform, and a placement plate is fixedly connected to the upper surface of the fixing rod.

[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 movable clamping device for welding box beams according to the present invention.

[0016] Figure 2 This is a diagram of the anti-slip mechanism of a movable clamping device for welding box beams according to this utility model.

[0017] Figure 3 This is a clamping structure diagram of a movable clamping device for welding box beams according to the present invention.

[0018] Figure 4 This utility model Figure 3 Enlarged diagram of point A in the middle.

[0019] Figure 5 This utility model Figure 3 Enlarged diagram of point B in the middle.

[0020] Legend: 1. Base; 2. Casters; 3. Platform; 4. Support plate; 5. Guide rod; 6. Threaded sleeve; 7. Threaded column; 8. First rotating shaft; 9. First helical gear; 10. Second helical gear; 11. First drive motor; 12. Slide rail; 13. Rack; 14. Fixing rod; 15. Placement plate; 16. Clamping plate; 17. Clamping block; 18. Gear column; 19. Transmission shaft; 20. Second drive motor; 21. Second rotating shaft; 22. Worm gear; 23. Worm wheel. 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 1-5 This utility model provides a movable clamping device for welding box beams, which includes a base 1. The upper end of the base 1 is fixedly connected to a platform 3 via a connector. A first drive motor 11 is installed inside the platform 3. A second helical gear 10 is fixedly connected to the output end of the first drive motor 11. A first helical gear 9 is meshed with the outer surface of the second helical gear 10. A first rotating shaft 8 is fixedly connected to the inner wall of the first helical gear 9. A threaded column 7 is fixedly connected to the lower end of the first rotating shaft 8.

[0023] A second drive motor 20 is fixedly connected to the upper surface of the platform 3. A second rotating shaft 21 is fixedly connected to the output end of the second drive motor 20. A worm wheel 23 is meshed with the outer surface of the second rotating shaft 21 through a worm gear 22. A transmission shaft 19 is fixedly connected to the inner wall of the worm wheel 23. Gear columns 18 are fixedly connected to both ends of the transmission shaft 19. A threaded sleeve 6 is threadedly connected to the outer surface of the threaded column 7. A support plate 4 is fixedly connected to the lower surface of the threaded sleeve 6. The connection between the threaded column 7 and the threaded sleeve 6 allows the rotation of the threaded column 7 to be converted into the axial movement of the threaded sleeve 6, thereby driving the support plate 4 to move and realize the support and fixation functions of the device. A guide rod 5 is fixedly connected to the upper end of the support plate 4. The outer side of the guide rod 5 is slidably connected to the inner wall of the platform 3.

[0024] A slide rail 12 is fixedly connected to the upper surface of the base 3. A rack 13 is slidably connected to the inner wall of the slide rail 12. The outer surface of the rack 13 meshes with a gear column 18. The sliding rail 12, rack 13, and gear column 18 are in a cooperative relationship. The rotation of the gear column 18, through meshing with the rack 13, converts the circular motion into linear motion of the rack 13 within the slide rail 12, providing power and guidance for the movement of the clamping plate 16 and the clamping block 17. A clamping plate 16 is fixedly connected to the upper surface of the rack 13 end, and a clamping block 17 is fixedly connected to the front end of the clamping plate 16. The input end of the first drive motor 11 is electrically connected to an external power supply, and the input end of the second drive motor 20 is also electrically connected to an external power supply. The lower part of the base 1... The surface is fixedly connected with casters 2. The connection between casters 2 and base 1, as well as the number and distribution of casters 2, make the device movable and can be easily pushed to a suitable position for welding box beams, improving the flexibility and applicability of the device. There are four casters 2, which are evenly distributed on the lower surface of base 1. The upper surface of the platform 3 is fixedly connected with a fixing rod 14, and the upper surface of the fixing rod 14 is fixedly connected with a placement plate 15. The connection relationship between the fixing rod 14, the placement plate 15 and the platform 3 is determined. The placement plate 15 provides a stable support platform for the box beam, which facilitates the positioning of the box beam and subsequent clamping operations, ensuring that the box beam has a stable placement position during the welding process.

[0025] Working principle: When the movable clamping device is needed to perform welding operations on box beams, first push the device and use the four universal wheels 2 evenly distributed on the lower surface of the base 1 to move the device to the appropriate position for welding the box beam.

[0026] Upon reaching the designated position, the first drive motor 11 is activated. The first drive motor 11 operates, generating rotational power at its output, which drives the second helical gear 10, which is fixedly connected to it, to rotate. Since the second helical gear 10 meshes with the first helical gear 9, according to the gear transmission principle, the rotation of the second helical gear 10 will cause the first helical gear 9 to rotate synchronously. The inner wall of the first helical gear 9 is fixedly connected to the first rotating shaft 8, so the first rotating shaft 8 will rotate together with the first helical gear 9. The lower end of the first rotating shaft 8 is fixedly connected to a threaded column 7, which causes the threaded column 7 to rotate circumferentially under the drive of the first rotating shaft 8. The outer surface of the threaded column 7 is connected to the threaded sleeve 6 by a threaded connection. When the threaded column 7 rotates, the threaded sleeve 6 moves downward along the axial direction of the threaded column 7 according to the helical direction of the thread. The support plate 4 is fixedly connected to the lower surface of the threaded sleeve 6, so the support plate 4 will move downward together with the threaded sleeve 6. During the descent of the support plate 4, the guide rod 5 fixedly connected to its upper end slides in the inner wall of the platform 3. The guide rod 5 plays the role of guiding and stabilizing the movement trajectory of the support plate 4, ensuring that the support plate 4 can descend vertically and smoothly until the support plate 4 is in close contact with the ground. At this time, the support plate 4 bears the entire weight of the device and, through the friction generated between it and the ground, firmly fixes the entire device in the current position, preventing the device from moving during subsequent welding operations.

[0027] Next, the box girder to be welded is placed on the placement plate 15 at the top of the fixing rod 14 on the upper surface of the platform 3. The placement plate 15 provides a stable support platform for the box girder, which facilitates the subsequent positioning and clamping operations of the box girder.

[0028] Then, the second drive motor 20 is started. After the second drive motor 20 is powered on, its output end drives the second rotating shaft 21 to start rotating. The worm 22 is fixedly installed on the outer surface of the second rotating shaft 21, so the worm 22 will rotate together with the second rotating shaft 21. The worm 22 meshes with the worm wheel 23, forming a worm wheel 23 worm 22 transmission mechanism. In this transmission mechanism, the rotation of the worm 22 will drive the worm wheel 23 to perform circular motion. The inner wall of the worm wheel 23 is fixedly connected to the transmission shaft 19, so the transmission shaft 19 will rotate synchronously under the drive of the worm wheel 23. The two ends of the transmission shaft 19 are respectively fixedly connected to the gear column 18. When the transmission shaft 19 rotates, the gear column 18 will also rotate in a circular motion. The upper surface of the platform 3 is equipped with a slide rail 12, and the rack 13 can be installed in the inner wall of the slide rail 12. The rack 13 slides freely, and its outer surface meshes with the gear column 18. When the gear column 18 rotates, it interacts with the rack 13. According to the transmission principle of the rack and pinion, the circular motion of the gear column 18 is converted into the linear motion of the rack 13 in the slide rail 12. The upper surface of the end of the rack 13 is fixedly connected to the clamping plate 16, and the front end of the clamping plate 16 is fixedly connected to the clamping block 17. Therefore, the clamping plate 16 and the clamping block 17 will move synchronously with the rack 13 and approach the box beam placed on the placement plate 15. As the rack 13 moves, the clamping plate 16 and the clamping block 17 gradually apply pressure to the box beam, and finally achieve a tight clamping of the box beam, providing a stable workpiece fixing state for subsequent welding work, ensuring that the box beam will not be displaced during the welding process, thereby ensuring the welding quality.

[0029] 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 portable hold-down device for box beam welding, characterized by, The application relates to a base (1), the upper end of the base (1) is fixedly connected with a pedestal (3) through a connecting piece, the inside of the pedestal (3) is provided with a first driving motor (11), the output end of the first driving motor (11) is fixedly connected with a second bevel gear (10), the outer surface of the second bevel gear (10) is meshedly connected with a first bevel gear (9), the inner wall of the first bevel gear (9) is fixedly connected with a first rotating shaft (8), the lower end of the first rotating shaft (8) is fixedly connected with a threaded column (7), the upper surface of the pedestal (3) is fixedly connected with a second driving motor (20), the output end of the second driving motor (20) is fixedly connected with a second rotating shaft (21), the outer surface of the second rotating shaft (21) is meshedly connected with a worm wheel (23) through a worm (22), the inner wall of the worm wheel (23) is fixedly connected with a transmission shaft (19), and both ends of the transmission shaft (19) are fixedly connected with gear columns (18). The outer surface of the threaded column (7) is threadedly connected with a threaded sleeve (6), and the lower surface of the threaded sleeve (6) is fixedly connected with a supporting plate (4).

2. A portable hold-down device for box beam welding as defined in claim 1, wherein The upper end of the supporting plate (4) is fixedly connected with a guide rod (5), and the outer side of the guide rod (5) is slidably connected with the inner wall of the pedestal (3).

3. A portable hold-down device for box beam welding as defined in claim 2 wherein, The upper surface of the pedestal (3) is fixedly connected with a sliding rail (12), the inner wall of the sliding rail (12) is slidably connected with a rack (13), and the outer surface of the rack (13) is meshedly connected with the gear columns (18).

4. The portable hold-down device for box beam welding of claim 1, wherein, The upper surface of the end of the rack (13) is fixedly connected with a clamping plate (16), and the front end of the clamping plate (16) is fixedly connected with clamping blocks (17).

5. A portable hold-down device for box beam welding as defined in claim 4 wherein, The input end of the first driving motor (11) is electrically connected with an external power supply, and the input end of the second driving motor (20) is electrically connected with the external power supply.

6. The portable hold-down device for box beam welding of claim 1, wherein, The lower surface of the base (1) is fixedly connected with universal wheels (2), the number of the universal wheels (2) is four, and the universal wheels (2) are uniformly distributed on the lower surface of the base (1).

7. The portable hold-down device for box beam welding of claim 1, wherein, The upper surface of the pedestal (3) is fixedly connected with a fixing rod (14), and the upper surface of the fixing rod (14) is fixedly connected with a placing plate (15).

8. The portable hold-down device for box beam welding of claim 1, wherein, ​

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