A welding device for steel box girder construction

Abstract

This application relates to a welding device for steel box girder construction, comprising: a movable plate; two welding mechanisms disposed opposite to each other on the movable plate, each welding mechanism comprising: a sliding plate slidably connected to the movable plate; a height adjusting rod, one end of which is hinged to the sliding plate; an angle adjusting rod, one end of which is rotatably connected to the other end of the height adjusting rod; and a welding torch rotatably connected to the other end of the angle adjusting rod. This application calculates the required height and welding angle of the welding torch based on the dimensions of the U-rib, then adjusts the height of the welding torch by rotating the height adjusting rod and adjusts the welding angle of the welding torch by adjusting the angle adjusting rod. This allows the welding device to be adjusted before use, thus improving welding efficiency through this pre-adjustment method.

Description

Technical Field

[0001] This application relates to the technical field of steel box girder manufacturing, and in particular to a welding device for steel box girder construction. Background Technology

[0002] Steel box girders are an important component of bridge load-bearing structures, mainly used to provide support and prevent bridge deformation. To improve the stability and torsional resistance of steel box girders, U-ribs are welded to the bottom of the steel box girder. The fillet welds between the U-ribs and the bottom plate of the steel box girder are all externally welded on one side.

[0003] The existing patent application number CN201510240133.0 proposes a U-rib welding device, a U-rib welding system, and a U-rib welding method. In this document, a welding torch is transported to the inside of the U-rib via a moving platform. The welding torch performs welding inside the U-rib, and then combined with external welding, a better welding effect is achieved. In actual operation, the tracking head needs to be placed against the corner joint first. At this time, the welding torch will adjust its position according to the tracking head. Then, the welding torch head is adjusted to align with the corner joint. Because the tracking head is controlled by an elastic element, the position of the tracking head inside the U-rib when it is against the corner joint cannot be known in advance. As a result, the position of the welding torch inside the U-rib also cannot be known in advance, and the welding torch head cannot be adjusted in advance to ensure that welding can be performed directly during use, which reduces the welding efficiency of the steel box girder.

[0004] To address the aforementioned issues, this application proposes a welding device for the construction of steel box girders. Summary of the Invention

[0005] This application provides a welding device for the construction of steel box girders to solve the problem of low welding efficiency in the manufacturing process of steel box girders in related technologies.

[0006] Firstly, a welding device for constructing steel box girders is provided, comprising:

[0007] Mobile board;

[0008] Two welding mechanisms are arranged opposite each other on a movable plate, and the welding structure includes:

[0009] - A skateboard, which is slidably connected to the movable board;

[0010] - A height adjustment rod, one end of which is hinged to the slide plate;

[0011] - Angle adjustment rod, one end of which is rotatably connected to the other end of the height adjustment rod;

[0012] - Welding torch, which is rotatably connected to the other end of the angle adjustment rod.

[0013] In some embodiments, the welding structure further includes a first gear, a second gear, and a handle;

[0014] The first gear is rotatably connected to the side of the height adjustment rod, the handle is connected to the first gear and the handle drives the first gear to rotate, the second gear is connected to the angle adjustment rod and the second gear is located at the end of the angle adjustment rod that is rotatably connected to the height adjustment rod, and the first gear meshes with the second gear.

[0015] In some embodiments, the welding structure further includes a mating groove, a mating block, and a lifting groove;

[0016] The lifting groove is located at the center of the first gear, the mating groove is located on the height adjustment rod and the mating groove is connected to the lifting groove, and the mating block is slidably connected in the lifting groove and can be inserted into the mating groove.

[0017] In some embodiments, the welding structure further includes a plurality of limiting grooves and a plurality of limiting blocks;

[0018] A plurality of limiting grooves correspond one-to-one with a plurality of limiting blocks. The limiting grooves are formed on the inner wall of the lifting groove, and the limiting blocks are connected to the mating blocks and are slidably connected in the limiting grooves.

[0019] In some embodiments, the welding structure further includes a plurality of movable holes, a plurality of movable blocks, and a limiting ring;

[0020] The angle adjustment rod has a hollow interior, and a plurality of movable holes are circumferentially opened on the side of the angle adjustment rod. Each of the movable holes corresponds to a plurality of movable blocks. The movable blocks are slidably connected to the movable holes, and at least a portion of the movable blocks are located outside the angle adjustment rod. The limiting ring is connected to the plurality of movable blocks.

[0021] In some embodiments, the welded structure further includes a double gear;

[0022] One end of the double gear is located in the inner cavity, and the end of the double gear located in the inner cavity is a spur gear. The inner side of the limiting ring matches the spur gear of the double gear. When the limiting ring is fitted on the spur gear of the double gear, the double gear rotates synchronously with the angle adjustment rod.

[0023] In some embodiments, the welding structure further includes a plurality of guide rods and a plurality of springs;

[0024] Each of the aforementioned movable holes corresponds to a number of the aforementioned guide rods and a number of the aforementioned springs. The guide rods are connected to the movable holes and pass through the movable block. The springs are wound around the guide rods and are connected to the limiting ring and the inner wall of the movable holes.

[0025] In some embodiments, the welding torch includes a torch body, a torch head, and a threaded rod;

[0026] The gun body is rotatably connected to the angle adjustment rod, the gun head is slidably connected to the gun body, and the threaded rod is rotatably connected to the gun body and threadedly connected to the gun head.

[0027] In some embodiments, the welded structure further includes a third gear;

[0028] The third gear is a bevel gear and is connected to the threaded rod. The other end of the double gear is located inside the gun body, and the end of the double gear located inside the gun body has a bevel gear that meshes with the third gear.

[0029] This application provides a welding device for steel box girder construction. Since this application calculates the distance the welding torch needs to move, the height to be adjusted, and the welding angle based on the dimensions of the U-rib, and then moves the welding torch by means of a sliding plate, adjusts the height of the welding torch by rotating the height adjustment rod, and adjusts the welding angle of the welding torch by means of adjusting the angle adjustment rod, the welding device of this application can be adjusted before use. Therefore, this application improves the welding efficiency by means of advance adjustment. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the structure provided for an embodiment of this application;

[0032] Figure 2 This is a schematic diagram of the structure provided for an embodiment of this application;

[0033] Figure 3 This is a schematic diagram of the structure provided for an embodiment of this application;

[0034] Figure 4 This is a schematic diagram of the structure provided for an embodiment of this application;

[0035] Figure 5 This is a schematic diagram of the structure provided for an embodiment of this application;

[0036] Figure 6 for Figure 3 Enlarged view of the structure at point A in the middle;

[0037] Figure 7 for Figure 5 Enlarged view of the structure at point A in the middle.

[0038] In the diagram: 1. Moving plate; 2. Welding structure; 21. Slide plate; 22. Height adjustment rod; 23. Angle adjustment rod; 24. Welding torch; 241. Torch body; 242. Torch head; 243. Threaded rod; 25. First gear; 26. Second gear; 27. Handle; 28. Mating groove; 29. ​​Mating block; 210. Lifting groove; 211. Limiting groove; 212. Limiting block; 213. Moving hole; 214. Moving block; 215. Limiting ring; 216. Double gear; 217. Guide rod; 218. Spring; 219. Third gear. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0040] This application provides a welding device for the construction of steel box girders, which can solve the problem of low welding efficiency in the manufacturing process of steel box girders in related technologies.

[0041] Please see Figures 1 to 7 A welding device for steel box girder construction includes: a movable plate 1 and two welding mechanisms, the two welding mechanisms being arranged opposite to each other on the movable plate 1. The welding mechanism 2 includes: a sliding plate 21, a height adjusting rod 22, an angle adjusting rod 23, and a welding torch 24. The sliding plate 21 is slidably connected to the movable plate 1. One end of the height adjusting rod 22 is hinged to the sliding plate 21. One end of the angle adjusting rod 23 is rotatably connected to the other end of the height adjusting rod 22. The welding torch 24 is rotatably connected to the other end of the angle adjusting rod 23.

[0042] During implementation, the welding torch 24 is moved by the movement of the sliding plate 21. The height of the welding torch 24 is adjusted by rotating the height adjustment rod 22 on the sliding plate 21, and the welding angle is adjusted by rotating the angle adjustment rod 23 on the height adjustment rod 22. The distance that the welding torch 24 needs to move can be calculated based on the width of the U-rib to be welded. The height range and welding angle range that the welding torch 24 needs to be adjusted can be calculated based on the tilt angle of the U-rib corner. Then, the sliding plate 21, height adjustment rod 22 and angle adjustment rod 23 are adjusted before welding, so that they can be directly used to weld the U-rib and improve welding efficiency.

[0043] It should be noted that a screw is rotatably connected to the movable plate 1, and the screw is threadedly connected to the slide plate 21. The screw is driven by a motor, and the height adjustment rod 22 is controlled by a motor to adjust the rotation angle.

[0044] Furthermore, in this embodiment, the welding structure 2 also includes a first gear 25, a second gear 26, and a handle 27;

[0045] The first gear 25 is rotatably connected to the side of the height adjustment rod 22, the handle 27 is connected to the first gear 25 and the handle 27 drives the first gear 25 to rotate, the second gear 26 is connected to the angle adjustment rod 23 and the second gear 26 is located at the end of the angle adjustment rod 23 that is rotatably connected to the height adjustment rod 22, and the first gear 25 and the second gear 26 mesh.

[0046] The first gear 25 is rotated by the handle 27, and the second gear 26 is rotated by the first gear 25, thereby enabling the handle 27 to control the rotation of the angle adjustment rod 23.

[0047] Furthermore, in this embodiment, the welding structure 2 also includes a mating groove 28, a mating block 29, and a lifting groove 210;

[0048] The lifting groove 210 is located at the center of the first gear 25, the mating groove 28 is located on the height adjustment rod 22 and the mating groove 28 communicates with the lifting groove 210, and the mating block 29 is slidably connected in the lifting groove 210 and can be inserted into the mating groove 28;

[0049] Specifically, in this embodiment, the welding structure 2 further includes a plurality of limiting grooves 211 and a plurality of limiting blocks 212;

[0050] A plurality of limiting grooves 211 correspond one-to-one with a plurality of limiting blocks 212. The limiting grooves 211 are formed on the inner wall of the lifting groove 210, and the limiting blocks 212 are connected to the mating block 29. The limiting blocks 212 are slidably connected to the limiting grooves 211.

[0051] Since the limiting block 212 is slidably connected to the limiting groove 211, the mating block 29 cannot rotate when it moves up and down in the lifting groove 210. When the mating block 29 is inserted into the mating groove 28, the mating block 29 cannot rotate, which in turn causes the first gear 25 to also not rotate, thus preventing the angle adjusting rod 23 from rotating, thereby fixing the rotation angle of the angle adjusting rod 23.

[0052] The mating block 29 can be either a gear or a polygonal block.

[0053] During implementation, the welding torch 24 is moved by the movement of the sliding plate 21. The height of the welding torch 24 is adjusted by rotating the height adjustment rod 22 on the sliding plate 21, and the welding angle is adjusted by rotating the angle adjustment rod 23 on the height adjustment rod 22. The distance that the welding torch 24 needs to move can be calculated based on the width of the U-rib to be welded. The height range and welding angle range that the welding torch 24 needs to be adjusted can be calculated based on the tilt angle of the U-rib corner. Then, the sliding plate 21, height adjustment rod 22 and angle adjustment rod 23 are adjusted before welding, so that they can be directly used to weld the U-rib and improve welding efficiency.

[0054] More specifically, in this embodiment, the welding structure 2 further includes a plurality of moving holes 213, a plurality of moving blocks 214, and a limiting ring 215;

[0055] The angle adjusting rod 23 has a cavity inside. A plurality of moving holes 213 are circumferentially opened on the side of the angle adjusting rod 23. The plurality of moving holes 213 correspond one-to-one with a plurality of moving blocks 214. The moving blocks 214 are slidably connected to the moving holes 213 and at least a portion of the moving blocks 214 are located outside the angle adjusting rod 23. The limiting ring 215 is connected to the plurality of moving blocks 214.

[0056] Since the moving block 214 moves within the moving hole 213, the movement of the moving block 214 can be controlled outside the angle adjustment rod 23, thereby driving the limit ring 215 to move.

[0057] Preferably, in this embodiment, the welding structure 2 further includes a double gear 216;

[0058] One end of the double gear 216 is located in the inner cavity, and the other end of the double gear 216 located in the inner cavity is a spur gear. The inner side of the limiting ring 215 matches the spur gear of the double gear 216. When the limiting ring 215 is fitted on the spur gear of the double gear 216, the double gear 216 rotates synchronously with the angle adjusting rod 23.

[0059] When the limiting ring 215 is fitted onto the spur gear of the double gear 216, the spur gear will rotate synchronously with the angle adjusting rod 23. If the angle adjusting rod 23 cannot rotate at this time, then the double gear 216 will also be unable to rotate.

[0060] In a preferred embodiment, the welding structure 2 further includes a plurality of guide rods 217 and a plurality of springs 218;

[0061] A plurality of the movable holes 213 correspond one-to-one with a plurality of the guide rods 217 and a plurality of the springs 218. The guide rods 217 are connected to the movable holes 213 and pass through the movable block 214. The springs 218 are wound around the guide rods 217 and are connected to the limiting ring 215 and the inner wall of the movable holes 213.

[0062] The moving block 214 moves along the guide rod 217. When the spring 218 is neither compressed nor extended, the limiting ring 215 is fitted onto the spur gear of the double gear 216. Therefore, when it is necessary to rotate the adjustment rod, the moving block 214 needs to be moved manually first to separate the limiting ring 215 from the double gear 216. After releasing the moving block 214, the limiting ring 215 will be fitted back onto the double gear 216 under the action of the spring 218.

[0063] Please see Figure 4 In this embodiment, the welding torch 24 includes a torch body 241, a torch head 242, and a threaded rod 243;

[0064] The gun body 241 is rotatably connected to the angle adjustment rod 23, the gun head 242 is slidably connected to the gun body 241, and the threaded rod 243 is rotatably connected to the gun body 241 and threadedly connected to the gun head 242.

[0065] The welded structure 2 also includes a third gear 219;

[0066] The third gear 219 is a bevel gear and is connected to the threaded rod 243. The other end of the double gear 216 is located inside the gun body 241, and the end of the double gear 216 located inside the gun body 241 has a bevel gear that meshes with the third gear 219.

[0067] The gun head 242 slides on the gun body 241 and does not move within the gun body 241. By controlling the rotation of the third gear 219 to drive the threaded rod 243 to rotate, the extension and retraction of the gun head 242 are controlled. The third gear 219 is driven by the double gear 216. When the double gear 216 is restricted from rotating, the position of the gun head 242 is fixed.

[0068] After adjusting the height adjustment rod 22 and the angle adjustment rod 23, the limiting ring 215 can be placed on the spur gear of the double gear 216, and then the mating block 29 can be inserted into the mating groove 28 to fix the height adjustment rod 22 and the angle adjustment rod 23, which will facilitate subsequent welding.

[0069] The working principle of this application is as follows:

[0070] During implementation, the welding torch 24 is moved by the movement of the sliding plate 21. The height of the welding torch 24 is adjusted by rotating the height adjustment rod 22 on the sliding plate 21, and the welding angle is adjusted by rotating the angle adjustment rod 23 on the height adjustment rod 22. The distance that the welding torch 24 needs to move can be calculated based on the width of the U-rib to be welded. The height range and welding angle range that the welding torch 24 needs to be adjusted can be calculated based on the tilt angle of the U-rib corner. Before adjustment, the mating block 29 needs to be pulled out of the mating groove 28 and the spur gear of the limiting ring 215 needs to be disengaged from the double gear 216. Then, before welding, the sliding plate 21, the height adjustment rod 22 and the angle adjustment rod 23 are adjusted so that they can be directly used to weld the U-rib and improve welding efficiency.

[0071] After adjustment, insert the mating block 29 into the mating groove 28 and the limiting ring 215 onto the spur gear of the double gear 216 to fix the height adjustment rod 22 and the angle adjustment rod 23 for subsequent welding.

[0072] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0073] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0074] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A welding device for steel box girder construction, characterized in that, include: Mobile board (1); Two welded structures are disposed opposite to each other on the movable plate (1), and the welded structure (2) includes: - Slideboard (21), which is slidably connected to the movable plate (1); - Height adjustment rod (22), one end of which is hinged to the slide plate (21); - Angle adjustment rod (23), one end of which is rotatably connected to the other end of the height adjustment rod (22); - Welding torch (24), which is rotatably connected to the other end of the angle adjustment rod (23); The welded structure (2) also includes a first gear (25), a second gear (26), and a handle (27); The first gear (25) is rotatably connected to the side of the height adjustment rod (22), the handle (27) is connected to the first gear (25) and the handle (27) drives the first gear (25) to rotate, the second gear (26) is connected to the angle adjustment rod (23) and the second gear (26) is located at the end of the angle adjustment rod (23) that is rotatably connected to the height adjustment rod (22), and the first gear (25) and the second gear (26) mesh; The welding structure (2) also includes a mating groove (28), a mating block (29), and a lifting groove (210); The lifting groove (210) is located at the center of the first gear (25), the mating groove (28) is located on the height adjustment rod (22) and the mating groove (28) is connected to the lifting groove (210), the mating block (29) is slidably connected in the lifting groove (210) and the mating block (29) can be inserted into the mating groove (28); The welding structure (2) also includes several moving holes (213), several moving blocks (214), and a limiting ring (215). The angle adjustment rod (23) has a cavity inside. A plurality of moving holes (213) are circumferentially opened on the side of the angle adjustment rod (23). The plurality of moving holes (213) correspond one-to-one with a plurality of moving blocks (214). The moving blocks (214) are slidably connected in the moving holes (213) and at least a portion of the moving blocks (214) are located outside the angle adjustment rod (23). The limiting ring (215) is connected to the plurality of moving blocks (214). The welded structure (2) also includes a double gear (216); One end of the double gear (216) is located in the inner cavity of the angle adjusting rod (23). The double gear (216) located in the inner cavity is a spur gear. The inner side of the limiting ring (215) matches the spur gear of the double gear (216). When the limiting ring (215) is fitted on the spur gear of the double gear (216), the double gear (216) rotates synchronously with the angle adjusting rod (23). The welded structure (2) also includes several guide rods (217) and several springs (218); A plurality of the movable holes (213) correspond one-to-one with a plurality of the guide rods (217) and a plurality of the springs (218). The guide rods (217) are connected to the movable holes (213) and pass through the movable block (214). The springs (218) are wound around the guide rods (217) and are connected to the limiting ring (215) and the inner wall of the movable holes (213).

2. The welding equipment for steel box girder construction as described in claim 1, characterized in that: The welding structure (2) also includes several limiting grooves (211) and several limiting blocks (212); A plurality of the limiting grooves (211) correspond one-to-one with a plurality of the limiting blocks (212). The limiting grooves (211) are opened on the inner wall of the lifting groove (210). The limiting blocks (212) are connected to the mating block (29). The limiting blocks (212) are slidably connected in the limiting grooves (211).

3. The welding equipment for steel box girder construction as described in claim 1, characterized in that: The welding torch (24) includes a torch body (241), a torch head (242), and a threaded rod (243). The gun body (241) is rotatably connected to the angle adjustment rod (23), the gun head (242) is slidably connected to the gun body (241), and the threaded rod (243) is rotatably connected to the gun body (241) and threadedly connected to the gun head (242).

4. The welding equipment for steel box girder construction as described in claim 3, characterized in that: The welded structure (2) also includes a third gear (219); The third gear (219) is a bevel gear and is connected to the threaded rod (243). The other end of the double gear (216) is located inside the gun body (241), and the end of the double gear (216) located inside the gun body (241) has a bevel gear that meshes with the third gear (219).

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