A steel box girder welding reverse deformation device convenient to assemble

Abstract

The utility model discloses a steel box girder welding reverse deformation device convenient to assemble, including device base and bearing platform, the device base is provided with two support frames on the convex, through the intercoordination of the structure such as movable platform, bearing platform and butt joint column etc.

Description

Technical Field

[0001] This utility model relates to the field of steel structure welding correction technology, specifically a steel box girder welding anti-deformation device that is easy to assemble. Background Technology

[0002] During the welding of steel box girders, thermal stress easily leads to problems such as angular deformation and torsion. Traditional methods such as rigid fixing and flame straightening are inefficient and lack precision. With the increasing application of large-span and complex steel box girders in bridges, buildings, and other fields, more precise deformation control technologies are needed. Therefore, researching anti-deformation devices for steel box girder welding has high social value and can significantly improve on-site construction efficiency. The anti-deformation principle offsets welding deformation by pre-setting reverse deformation, while industrial production requires devices with functions such as automated adjustment and modular design to improve consistency in batch production. At the same time, the trend of green manufacturing is driving the development of pre-weld active shape control technology to reduce post-weld straightening energy consumption.

[0003] Patent CN204843369U discloses a steel box girder welding anti-deformation platform device. The device includes a fixing latch, a concave platform panel, steel box girder structural components, anti-deformation resistance protrusions, hinges, a platform structural frame, and a platform base. The platform base is connected to the platform structural frame via hinges. The platform structural frame has fixing latches at both ends. A concave platform panel is provided on the upper surface of the platform structural frame, and an anti-deformation resistance protrusion is located at the center of the concave platform panel. The steel box girder structural components are connected to the platform structural frame via the fixing latches. The advantages of this invention are: by utilizing the characteristic of single-sided deformation during the welding process of the steel box girder structure, the anti-deformation platform solves the problem of bending deformation during the welding process, improves the accuracy of the welded steel box girder structure, reduces labor intensity and correction costs, and shortens the operation time.

[0004] However, the device is large and heavy, making it difficult to transport, and it is not easy to assemble quickly, resulting in average efficiency. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides an easy-to-assemble anti-deformation welding device for steel box girders, thus solving the aforementioned technical problems.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a steel box girder welding anti-deformation device that is easy to assemble, comprising a device base and a bearing platform. Two support frames are protruding from the device base, and the bearing platform is rotatably installed between the two support frames. Two protrusions are protruding from both ends of the bearing platform, and a movable platform is hinged between the two protrusions at the same end. An L-shaped frame is provided at the end of the movable platform away from the bearing platform, and a hydraulic cylinder is provided on the L-shaped frame. A clamping block is provided on the output end of the hydraulic cylinder. A screw is threadedly connected to the bearing platform, and a support rod is rotatably installed on the top of the screw. A handwheel is provided at the bottom of the screw. Hydraulic connecting rods are detachably connected to the bottom of both movable platforms, and the other end of the hydraulic connecting rods is detachably connected to the device base. Two mutually symmetrical docking grooves are opened at the bottom of the bearing platform and the two movable platforms, and docking columns are detachably connected in the docking grooves.

[0009] Preferably, both ends of the docking column are fixed to the docking grooves at the bottom of the two movable platforms by connecting bolts.

[0010] Preferably, the device base and the bottom of the two movable platforms are each provided with a plurality of U-shaped blocks, and the two ends of the hydraulic connecting rod are provided with rotatable connecting parts, which are fixed in the U-shaped blocks by bolts.

[0011] Preferably, the end of the screw away from the handwheel has a rotating groove, and a rotating block is rotatably installed in the rotating groove, with the rotating block mounted on the support rod.

[0012] Preferably, the bottom of the support rod is provided with two guide rods, both of which pass through the bearing platform and extend downward.

[0013] Preferably, the bearing platform is rotatably mounted between two support frames via a pivot.

[0014] Preferably, each of the two active platforms has two grooves that are adapted to the protrusions.

[0015] Compared with the prior art, this utility model provides a steel box girder welding anti-deformation device that is easy to assemble, and has the following beneficial effects: This utility model, through the cooperation of the structure of movable platform, bearing platform and docking column, can achieve the purpose of folding by rotating a certain angle along the protrusion of the bearing platform and the hinge of the movable platform, thereby reducing the space required for transportation. When assembly is required, the two movable platforms can be unfolded along the protrusion, and the two docking columns can be inserted into the docking groove at the bottom of the movable platform and the bearing platform and fixed, thereby realizing the unfolding of the movable platform and ensuring the bearing capacity of the movable platform. After unfolding, the two ends of the two hydraulic connecting rods can be fixed to the movable platform and the device base respectively, so that the rotation angle of the platform can be controlled by the hydraulic connecting rods to meet the welding requirements of the steel box girder. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of the device of this utility model;

[0017] Figure 2 This is a cross-sectional structural diagram of the movable platform, bearing platform, and screw of this utility model.

[0018] Figure 3 This is a cross-sectional structural diagram of the rotating block and support rod of this utility model.

[0019] Figure 4 This is a cross-sectional structural diagram of the docking column and movable platform of this utility model.

[0020] The components are: 1. Device base; 2. Bearing platform; 3. Protrusion; 4. Groove; 5. Movable platform; 6. Hydraulic cylinder; 7. Clamping block; 8. Support rod; 9. Support frame; 10. L-shaped frame; 11. Hydraulic connecting rod; 12. Connecting piece; 13. U-shaped block; 14. Handwheel; 15. Screw; 16. Guide rod; 17. Docking groove; 18. Rotating block; 19. Rotating shaft; 20. Docking column; 21. Connecting bolt. Detailed Implementation

[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0022] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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 utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Please see Figure 1-4 A steel box girder welding anti-deformation device that is easy to assemble includes a device base 1 and a bearing platform 2. Two support frames 9 are protruding on the device base 1. The bearing platform 2 is rotatably installed between the two support frames 9. Two protrusions 3 are protruding at both ends of the bearing platform 2. A movable platform 5 is hinged between the two protrusions 3 at the same end. An L-shaped frame 10 is provided at the end of the movable platform 5 away from the bearing platform 2. A hydraulic cylinder 6 is provided on the L-shaped frame 10. A clamping block 7 is provided on the output end of the hydraulic cylinder 6. A screw 15 is threadedly connected to the bearing platform 2. A support rod 8 is rotatably installed on the top of the screw 15. A handwheel 14 is provided at the bottom end of the screw 15. Hydraulic connecting rods 11 are detachably connected to the bottom of the two movable platforms 5. The other end of the hydraulic connecting rod 11 is detachably connected to the device base 1. Two mutually symmetrical docking grooves 17 are opened at the bottom of the bearing platform 2 and the two movable platforms 5. A docking column 20 is detachably connected in the docking groove 17.

[0025] Through the cooperation of the movable platform 5, the bearing platform 2, and the docking column 20, the movable platform 5 can be folded by rotating along the protrusion 3 during transportation, thereby reducing the space required for transportation. When assembly is required, the two movable platforms 5 can be unfolded along the protrusion 3, and the two docking columns 20 can be inserted into the docking groove 17 at the bottom of the movable platform 5 and the bearing platform 2 and fixed, thereby realizing the unfolding of the movable platform 5 and ensuring the load-bearing capacity of the movable platform 5. After unfolding, the two ends of the two hydraulic connecting rods 11 can be fixed to the movable platform 5 and the device base 1 respectively, so that the rotation angle of the platform can be controlled by the hydraulic connecting rods 11 to meet the welding requirements of the steel box girder.

[0026] Specifically, in this embodiment, both ends of the docking column 20 are fixed to the docking groove 17 at the bottom of the two movable platforms 5 by connecting bolts 21. The docking column 20 can ensure the support capacity of the movable platform 5 after it is unfolded.

[0027] Specifically, in this embodiment, the bottom of the device base 1 and the two movable platforms 5 are provided with multiple U-shaped blocks 13, and the two ends of the hydraulic connecting rod 11 are provided with rotatable connecting parts 12, which are fixed in the U-shaped blocks 13 by bolts.

[0028] The U-shaped block 13 and the connector 12 facilitate the assembly and disassembly of the hydraulic connecting rod 11, enabling quick assembly and disassembly of the hydraulic connecting rod 11.

[0029] Specifically, in this embodiment, a rotating groove is provided at the end of the screw 15 away from the handwheel 14, and a rotating block 18 is rotatably installed in the rotating groove. The rotating block 18 is installed on the support rod 8. Through the cooperation between the rotating groove and the rotating block 18, the screw 15 can rotate without driving the support rod 8 to rotate.

[0030] Specifically, in this embodiment, two guide rods 16 protrude from the bottom of the support rod 8, and both guide rods 16 penetrate the bearing platform 2 and extend downward.

[0031] The direction of movement of the support rod 8 can be restricted by the guide rod 16.

[0032] Specifically, in this embodiment, the bearing platform 2 is rotatably mounted between two support frames 9 via a rotating shaft 19.

[0033] Specifically, in this embodiment, each of the two active platforms 5 has two grooves 4 that are adapted to the protrusions 3.

[0034] It should be noted that the hydraulic cylinder, hydraulic connecting rod, and electrical components mentioned in this article are all connected to the external main controller and mains power. Furthermore, the more detailed working process and principle of the anti-deformation platform device are described in the prior application for a steel box girder steel structure welding anti-deformation platform device with application number 201520527744.9, and will not be repeated here.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A steel box girder welding anti-deformation device that is easy to assemble, comprising a device base and a bearing platform, characterized in that: Two support frames protrude from the base of the device. The bearing platform is rotatably mounted between the two support frames. Two protrusions protrude from both ends of the bearing platform. A movable platform is hinged between the two protrusions at the same end. An L-shaped frame is provided at the end of the movable platform away from the bearing platform. A hydraulic cylinder is provided on the L-shaped frame. A clamping block is provided on the output end of the hydraulic cylinder. A screw is threadedly connected to the bearing platform. A support rod is rotatably mounted on the top of the screw. A handwheel is provided at the bottom of the screw. Hydraulic connecting rods are detachably connected to the bottom of both movable platforms. The other end of the hydraulic connecting rods is detachably connected to the base of the device. Two mutually symmetrical docking slots are opened at the bottom of the bearing platform and the two movable platforms. A docking column is detachably connected in the docking slot.

2. The easily assembled steel box girder welding anti-deformation device according to claim 1, characterized in that: Both ends of the docking column are fixed to the docking grooves at the bottom of the two movable platforms by connecting bolts.

3. The easily assembled steel box girder welding anti-deformation device according to claim 1, characterized in that: The device base and the bottom of the two movable platforms are each equipped with multiple U-shaped blocks. Both ends of the hydraulic connecting rod are equipped with rotatable connectors, which are fixed inside the U-shaped blocks by bolts.

4. The easily assembled steel box girder welding anti-deformation device according to claim 1, characterized in that: The screw has a rotating groove at the end away from the handwheel, and a rotating block is rotatably installed in the rotating groove. The rotating block is mounted on the support rod.

5. The easily assembled steel box girder welding anti-deformation device according to claim 1, characterized in that: The bottom of the support rod has two guide rods protruding, both of which pass through the bearing platform and extend downward.

6. The easily assembled steel box girder welding anti-deformation device according to claim 1, characterized in that: The support platform is rotatably mounted between two support frames via a rotating shaft.

7. The easily assembled steel box girder welding anti-deformation device according to claim 1, characterized in that: Both of the aforementioned active platforms have two grooves that are adapted to the protrusions.

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