A polishing device for building steel structures

Abstract

The present invention relates to the technical field of polishing of building steel structures, and specifically discloses a polishing device for building steel structures, including: an installation platform, an installation box is arranged above the installation platform, and a driving motor is fixedly connected to the inner wall of the installation box; through the settings of the installation box, the driving motor, the arc-shaped electric slide rail, the installation plate, the insertion block, the elastic plug and the polishing plate, during use, the driving motor drives the arc-shaped electric slide rail to perform a rotational movement through the driving rod, the sliding block slides in the arc-shaped electric slide rail, driving the installation plate to be adjusted at multiple angles. The polishing plate is connected to the connection plate through the elastic plug, and can automatically adjust its position according to the pressure change during the polishing process to ensure the consistency of the polishing effect; the transmitter is used to transmit the data of the pressure sensor, facilitating real-time monitoring and adjustment of the polishing process, so that the polishing device can realize multi-angle and multi-directional polishing operations.

Description

Technical Field

[0001] The present invention belongs to the technical field of architectural steel structure polishing, and particularly relates to a polishing device for architectural steel structures. Background Technique

[0002] During the processing of architectural steel structures, polishing is a crucial process, which directly affects the appearance quality, corrosion resistance and overall performance of the steel structures. With the rapid development of the construction industry, the requirements for the surface finish of steel structures are increasing day by day. Traditional polishing techniques are difficult to meet the modern high-efficiency and high-quality production needs.

[0003] At present, there are various polishing devices for architectural steel structures on the market. Most of these devices adopt manual or semi-automatic polishing methods. The manual polishing method depends on the experience and technical level of the operator, and there are problems such as uneven polishing force, low efficiency and high labor intensity. Although the semi-automatic polishing device improves the polishing efficiency to a certain extent, its automation degree is still limited, and it cannot achieve precise polishing at multiple angles and in multiple directions. Especially when dealing with architectural steel structures with complex shapes, the polishing effect is often difficult to guarantee. In addition, the existing polishing devices lack a real-time monitoring and adjustment mechanism for polishing force during the polishing process, resulting in easy damage to the surface of the steel structure when the polishing force is too large, and it is difficult to achieve the ideal polishing effect when the polishing force is too small. Therefore, it needs to be improved by the staff. Summary of the Invention

[0004] The purpose of the present invention is to provide a polishing device for architectural steel structures to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A polishing device for architectural steel structures, comprising:

[0007] An installation platform;

[0008] An installation box is arranged above the installation platform. A driving motor is fixedly connected to the inner wall of the installation box. A driving rod is installed at the output end of the driving motor. The bottom end of the driving rod is fixedly connected with an arc-shaped electric slide rail. The top of the arc-shaped electric slide rail is fixedly connected with a bearing ring, and the top of the bearing ring is fixedly connected to the bottom of the installation box;

[0009] A sliding block is slidably connected to the inner wall of the arc-shaped electric slide rail. The sliding block has a mounting plate fixedly connected to its bottom. A plug-in block is inserted into the bottom of the mounting plate. A connecting plate is fixedly connected to the bottom of the plug-in block. A plurality of mounting holes are formed in the bottom of the connecting plate. An elastic plug is inserted into the inner wall of the mounting hole. A pressure sensor is fixedly connected to the inner wall of the elastic plug. A polishing plate is fixedly connected to the bottom of the elastic plug. A transmitter is fixedly connected to the top of the mounting plate.

[0010] Preferably, first electric telescopic rods are fixedly connected to the four peripheral parts of the inner wall of the mounting plate. The four first electric telescopic rods are electrically connected through wires. An installation groove is formed in the bottom of the mounting plate, and the inner wall of the installation groove sleeved on the surface of the plug-in block. Limiting holes are formed in the four peripheral parts of the surface of the plug-in block, and the output ends of the first electric telescopic rods are inserted into the inner walls of the limiting holes.

[0011] Preferably, an assembly frame is fixedly connected to the top of the installation platform. A fixed clamping block is fixedly connected to the top of the surface of the assembly frame. A protective box is fixedly connected to one side of the fixed clamping block. A first servo motor is fixedly connected to the inner wall of the protective box. A transmission rod is installed at the output end of the first servo motor. A connecting rod is fixedly connected to the front end of the transmission rod.

[0012] Preferably, a motor box is fixedly connected to one side of the connecting rod. A second servo motor is fixedly connected to the inner wall of the motor box. A movable rod is installed at the output end of the second servo motor. A second electric telescopic rod is fixedly connected to the front end of the movable rod. The two sides of the top end of the second electric telescopic rod are rotatably connected to the inner wall of the connecting rod, and the output end of the second electric telescopic rod is fixedly connected to the top of the installation box.

[0013] Preferably, a camera is fixedly connected to the middle of the surface of the assembly frame. A control panel is fixedly connected to the top of one side of the assembly frame.

[0014] Preferably, support columns are fixedly connected to the four peripheral parts of the bottom of the installation platform. Partition plates are fixedly connected to both sides of the top of the installation platform.

[0015] Preferably, two sleeve pipes are fixedly connected to one side of the partition plate. A third electric telescopic rod is fixedly connected to the inner wall of the sleeve pipe, and the output end of the third electric telescopic rod penetrates and is inserted into the inner wall of the partition plate.

[0016] Preferably, a clamping plate is installed at the output end of the third electric telescopic rod, and the clamping plate is arranged on the side opposite to the partition plate and the sleeve pipe.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] (1) Through the settings of the installation box, drive motor, arc-shaped electric slide rail, mounting plate, plug-in block, elastic plug, and polishing plate, during use, the drive motor drives the arc-shaped electric slide rail to perform a rotational movement through a drive rod. The arc-shaped electric slide rail is fixedly connected to the bottom of the installation box through a bearing ring to ensure the smoothness of its rotation. The sliding block slides within the arc-shaped electric slide rail, driving the mounting plate to adjust at multiple angles. The pressure sensor fixedly connected to the inner wall of the elastic plug can monitor the pressure changes during the polishing process in real time to ensure the uniformity of the polishing force. The polishing plate is connected to the connecting plate through the elastic plug and can automatically adjust its position according to the pressure changes during the polishing process to ensure the consistency of the polishing effect. The transmitter is used to transmit the data of the pressure sensor, facilitating real-time monitoring and adjustment of the polishing process. As a result, this polishing device can achieve multi-angle and multi-directional polishing operations, and can automatically adjust the polishing force according to the pressure changes, ensuring the uniformity and consistency of the polishing effect, and improving the polishing efficiency and quality.

[0019] (2) Through the settings of the assembly frame, first servo motor, connecting rod, second servo motor, second electric telescopic rod, camera, and control panel, during use, the first servo motor drives the connecting rod to perform a rotational movement through a transmission rod. The second servo motor drives the second electric telescopic rod to adjust the angle through a movable rod. The second electric telescopic rod performs a telescopic movement, and the output end of the second electric telescopic rod is fixedly connected to the top of the installation box, thereby realizing the multi-angle adjustment and precise positioning of the installation box. The camera is used to monitor the polishing process in real time to ensure the accuracy and safety of the polishing operation. The control panel is used to control the operation of the entire device. As a result, the polishing device can achieve multi-angle and multi-directional precise polishing operations, can monitor the polishing process in real time through the camera to ensure the uniformity and consistency of the polishing effect, and at the same time realize the precise control of the entire device through the control panel, improving the polishing efficiency and quality, and reducing the errors and labor intensity of manual operations.

[0020] (3) Through the settings of the partition board, third electric telescopic rod, and clamping plate, during use, through the telescopic movement of the third electric telescopic rod, the clamping plate can clamp and fix the building steel structure to ensure the stability of the steel structure during the polishing process and avoid affecting the polishing effect due to vibration or displacement. The precise control of the third electric telescopic rod enables the clamping plate to be flexibly adjusted according to the size and shape of the steel structure to meet the needs of workpieces of different specifications. As a result, the polishing device can firmly fix the building steel structure during the polishing process to ensure that it does not undergo displacement or vibration during the polishing process, thereby improving the polishing accuracy and consistency, and at the same time reducing the risk of uneven polishing or damage caused by workpiece movement, further enhancing the polishing efficiency and quality. Description of the Drawings

[0021] Figure 1 is a three-dimensional view of the present invention;

[0022] Figure 2 Is a perspective view of the mounting box of the present invention;

[0023] Figure 3 Is a perspective view of the arc-shaped electric slide rail of the present invention;

[0024] Figure 4 Is a perspective view of the elastic plug of the present invention;

[0025] Figure 5 Is a perspective view of the first electric telescopic rod of the present invention;

[0026] Figure 6 Is a perspective view of the assembly frame of the present invention;

[0027] Figure 7 Is a perspective view of the third electric telescopic rod of the present invention;

[0028] In the figure: 1, mounting platform; 2, mounting box; 3, drive motor; 4, drive rod; 5, arc-shaped electric slide rail; 6, bearing ring; 7, sliding block; 8, mounting plate; 9, plug-in block; 10, connecting plate; 11, mounting hole; 12, elastic plug; 13, polishing plate; 14, transmitter; 15, first electric telescopic rod; 16, wire; 17, mounting groove; 18, limiting hole; 19, assembly frame; 20, fixed clamping block; 21, protective box; 22, first servo motor; 23, transmission rod; 24, connecting rod; 25, motor box; 26, second servo motor; 27, movable rod; 28, second electric telescopic rod; 29, camera; 30, control panel; 31, support column; 32, partition board; 33, sleeve pipe; 34, third electric telescopic rod; 35, clamping plate. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Embodiment 1:

[0030] Please refer to Figures 1 to 7 As shown, a polishing device for building steel structures includes: a mounting platform 1;

[0031] Above the mounting platform 1, there is a mounting box 2. A drive motor 3 is fixedly connected to the inner wall of the mounting box 2. The output end of the drive motor 3 is equipped with a drive rod 4. The bottom end of the drive rod 4 is fixedly connected to an arc-shaped electric slide rail 5. The top of the arc-shaped electric slide rail 5 is fixedly connected to a bearing ring 6, and the top of the bearing ring 6 is fixedly connected to the bottom of the mounting box 2;

[0032] A sliding block 7 is slidably connected to the inner wall of the arc-shaped electric slide rail 5. A mounting plate 8 is fixedly connected to the bottom of the sliding block 7. A plug-in block 9 is inserted into the bottom of the mounting plate 8. A connecting plate 10 is fixedly connected to the bottom of the plug-in block 9. A plurality of mounting holes 11 are formed in the bottom of the connecting plate 10. A elastic plug 12 is inserted into the inner wall of the mounting hole 11. A pressure sensor is fixedly connected to the inner wall of the elastic plug 12. A polishing plate 13 is fixedly connected to the bottom of the elastic plug 12. A transmitter 14 is fixedly connected to the top of the mounting plate 8. A first electric telescopic rod 15 is fixedly connected to the periphery of the inner wall of the mounting plate 8. The four first electric telescopic rods 15 are electrically connected by a wire 16. A mounting groove 17 is formed in the bottom of the mounting plate 8, and the inner wall of the mounting groove 17 is sleeved on the surface of the plug-in block 9. A limiting hole 18 is formed in the periphery of the surface of the plug-in block 9, and the output end of the first electric telescopic rod 15 is inserted into the inner wall of the limiting hole 18.

[0033] During use, the installation platform 1 ensures the stability of the device. The driving motor 3 fixedly connected in the installation box 2 drives the arc-shaped electric slide rail 5 to rotate through the driving rod 4. The arc-shaped electric slide rail 5 is fixedly connected to the bottom of the installation box 2 through the bearing ring 6 to ensure the smoothness of its rotation; the sliding block 7 slides in the arc-shaped electric slide rail 5 to drive the mounting plate 8 to be adjusted at multiple angles. The plug-in block 9 at the bottom of the mounting plate 8 is connected to the mounting plate 8 through the mounting groove 17, and is fixed by inserting the output end of the first electric telescopic rod 15 into the limiting hole 18 to ensure the stability of the plug-in block 9; the connecting plate 10 is connected to the mounting plate 8 through the plug-in block 9. The elastic plug 12 is inserted into the mounting hole 11 at the bottom of the connecting plate 10. The pressure sensor fixedly connected to the inner wall of the elastic plug 12 can monitor the pressure change during the polishing process in real time to ensure the uniformity of the polishing force; the polishing plate 13 is connected to the connecting plate 10 through the elastic plug 12 and can automatically adjust its position according to the pressure change during the polishing process to ensure the consistency of the polishing effect; the transmitter 14 is used to transmit the data of the pressure sensor for facilitating the real-time monitoring and adjustment of the polishing process. Embodiment 2:

[0034] Please refer to Figures 1 to 7As shown in the figure, a mounting frame 19 is fixedly connected to the top of the mounting platform 1. A fixed clamping block 20 is fixedly connected to the top surface of the mounting frame 19. A protective box 21 is fixedly connected to one side of the fixed clamping block 20. A first servo motor 22 is fixedly connected to the inner wall of the protective box 21. A transmission rod 23 is installed at the output end of the first servo motor 22. A connecting rod 24 is fixedly connected to the front end of the transmission rod 23. A motor box 25 is fixedly connected to one side of the connecting rod 24. A second servo motor 26 is fixedly connected to the inner wall of the motor box 25. A movable rod 27 is installed at the output end of the second servo motor 26. A second electric telescopic rod 28 is fixedly connected to the front end of the movable rod 27. The two sides of the top end of the second electric telescopic rod 28 are rotatably connected to the inner wall of the connecting rod 24. The output end of the second electric telescopic rod 28 is fixedly connected to the top of the mounting box 2. A camera 29 is fixedly connected to the middle of the surface of the mounting frame 19. A control panel 30 is fixedly connected to the top of one side of the mounting frame 19.

[0035] During use, the mounting frame 19 is fixed to the top of the mounting platform 1 and is used to carry and fix other components. The fixed clamping block 20 is arranged on the top surface of the mounting frame 19 and is used to fix the protective box 21 to ensure its stability. The first servo motor 22 fixedly connected inside the protective box 21 drives the connecting rod 24 to perform a rotational motion through the transmission rod 23. A motor box 25 is connected to one side of the connecting rod 24. The second servo motor 26 fixedly connected inside the motor box 25 drives the second electric telescopic rod 28 to adjust the angle through the movable rod 27. The second electric telescopic rod 28 performs a telescopic motion. The output end of the second electric telescopic rod 28 is fixedly connected to the top of the mounting box 2, thereby realizing multi-angle adjustment and precise positioning of the mounting box 2. The camera 29 is arranged in the middle of the surface of the mounting frame 19 and is used to monitor the polishing process in real time to ensure the accuracy and safety of the polishing operation. The control panel 30 is arranged on the top of one side of the mounting frame 19 and is used to control the operation of the entire device, including the start and stop and parameter adjustment of components such as the drive motor, servo motor, and electric telescopic rod. Embodiment Three:

[0036] Please refer to Figures 1 to 7 As shown in the figure, support columns 31 are fixedly connected to the four surrounding areas at the bottom of the mounting platform 1. Partition plates 32 are fixedly connected to both sides of the top of the mounting platform 1. Two sleeve pipes 33 are fixedly connected to one side of the partition plate 32. A third electric telescopic rod 34 is fixedly connected to the inner wall of the sleeve pipe 33. The output end of the third electric telescopic rod 34 penetrates and is inserted into the inner wall of the partition plate 32. A clamping plate 35 is installed at the output end of the third electric telescopic rod 34, and the clamping plate 35 is arranged on the side opposite to the partition plate 32 and the sleeve pipe 33.

[0037] During use, the two partition plates 32 are respectively fixed on both sides of the top of the installation platform 1 to separate and support other components. The sleeve pipe 33 is fixed on one side of the partition plate 32. The output end of the third electric telescopic rod 34 fixedly connected to the inner wall thereof penetrates through the partition plate 32 and is provided with a clamping plate 35. The clamping plate 35 is arranged on the side of the partition plate 32 opposite to the sleeve pipe 33. Through the telescopic movement of the third electric telescopic rod 34, the clamping plate 35 can clamp and fix the building steel structure, ensuring that the steel structure remains stable during the polishing process and avoiding affecting the polishing effect due to vibration or displacement. The precise control of the third electric telescopic rod 34 enables the clamping plate 35 to be flexibly adjusted according to the size and shape of the steel structure, adapting to the workpiece requirements of different specifications. Thus, the polishing device can firmly fix the building steel structure during the polishing process, ensuring that it does not displace or vibrate during the polishing process. Embodiment 4:

[0038] Please refer to Figures 1 to 7 As shown, on a large construction site, a batch of large H-shaped steel beams need to be surface polished. These steel beams are relatively long and have complex surface shapes. Traditional polishing methods are difficult to meet the requirements of efficient and uniform polishing. For this reason, the construction party uses the polishing device for building steel structures described in this application.

[0039] First, place the installation platform 1 on a flat ground to ensure that the support columns 31 firmly support the entire device. Place the H-shaped steel beam to be polished on the installation platform 1 and fix it through the clamping plates 35 on both sides of the partition plate 32. The third electric telescopic rod 34 is activated to drive the clamping plate 35 to clamp the steel beam, ensuring that it does not displace or vibrate during the polishing process.

[0040] Start the device through the control panel 30. The drive motor 3 drives the drive rod 4 to rotate, and then the arc-shaped electric slide rail 5 performs a rotational movement. The sliding block 7 slides within the arc-shaped electric slide rail 5, driving the mounting plate 8 to be adjusted at multiple angles to ensure that the polishing plate 13 can cover all surfaces of the steel beam. The first electric telescopic rod 15 fixes the plug-in block 9 through the limit hole 18 to ensure the stability of the connection plate 10 and the polishing plate 13.

[0041] The polishing plate 13 is connected to the connection plate 10 through the elastic plug 12. The pressure sensor in the elastic plug 12 real-time monitors the pressure change during the polishing process to ensure uniform polishing force. Driven by the drive motor 3 and the arc-shaped electric slide rail 5, the polishing plate 13 performs multi-angle and multi-directional polishing operations along the surface of the steel beam. The camera 29 real-time monitors the polishing process to ensure the uniformity and consistency of the polishing effect.

[0042] During the polishing process, if it is found that the polishing effect in some areas is not ideal, the operator can adjust the angles and telescopic lengths of the second servo motor 26 and the second electric telescopic rod 28 through the control panel 30 to further optimize the position and pressure of the polishing plate 13, ensuring that the ideal polishing effect can be achieved in each area.

[0043] After the surface of the steel beam is polished, turn off the device, loosen the clamping plate 35, and remove the polished steel beam. The entire polishing process is efficient, uniform, and does not require manual intervention, greatly improving the polishing efficiency and quality.

[0044] Working principle: The drive motor 3 fixedly connected inside the installation box 2 drives the arc-shaped electric slide rail 5 to rotate through the drive rod 4. The arc-shaped electric slide rail 5 is fixedly connected to the bottom of the installation box 2 through the bearing ring 6 to ensure the smoothness of its rotation.

[0045] The sliding block 7 slides inside the arc-shaped electric slide rail 5, driving the installation plate 8 to be adjusted at multiple angles, so that the polishing plate 13 can cover each surface of the steel structure.

[0046] The plug-in block 9 at the bottom of the installation plate 8 is connected to the installation plate 8 through the installation groove 17, and is fixed by inserting the output end of the first electric telescopic rod 15 into the limit hole 18 to ensure the stability of the plug-in block 9.

[0047] The connecting plate 10 is connected to the installation plate 8 through the plug-in block 9. A spring plug 12 is inserted into the installation hole 11 at the bottom of the connecting plate 10. The pressure sensor fixedly connected to the inner wall of the spring plug 12 can monitor the pressure change during the polishing process in real time to ensure the uniformity of the polishing force.

[0048] The polishing plate 13 is connected to the connecting plate 10 through the spring plug 12, and can automatically adjust its position according to the pressure change during the polishing process to ensure the consistency of the polishing effect.

[0049] The first servo motor 22 fixedly connected inside the protection box 21 drives the connecting rod 24 to rotate through the transmission rod 23. The second servo motor 26 fixedly connected inside the motor box 25 drives the second electric telescopic rod 28 to adjust the angle through the movable rod 27. The second electric telescopic rod 28 performs telescopic movement. The output end of the second electric telescopic rod 28 is fixedly connected to the top of the installation box 2, thereby realizing the multi-angle adjustment and precise positioning of the installation box 2.

[0050] The camera 29 is arranged in the middle of the surface of the assembly frame 19, and is used to monitor the polishing process in real time to ensure the accuracy and safety of the polishing operation.

[0051] The control panel 30 is arranged at the top of one side of the assembly frame 19, and is used to control the operation of the entire device, including the start and stop and parameter adjustment of components such as the drive motor, servo motor, and electric telescopic rod.

[0052] Two partition plates 32 are respectively fixed on both sides of the top of the installation platform 1. A sleeve pipe 33 is fixed on one side of the partition plate 32. The output end of a third electric telescopic rod 34 fixedly connected to the inner wall thereof penetrates through the partition plate 32 and is provided with a clamping plate 35. The clamping plate 35 is arranged on the side of the partition plate 32 opposite to the sleeve pipe 33. Through the telescopic movement of the third electric telescopic rod 34, the clamping plate 35 can clamp and fix the building steel structure, ensuring that the steel structure remains stable during the polishing process and avoiding affecting the polishing effect due to vibration or displacement.

[0053] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A polishing device for building steel structure, characterized in that: include: Mounting platform (1); A mounting box (2) is arranged above the mounting platform (1); a driving motor (3) is fixedly connected to the inner wall of the mounting box (2); a driving rod (4) is installed at the output end of the driving motor (3); a curved electric slide rail (5) is fixedly connected to the bottom end of the driving rod (4); a bearing ring (6) is fixedly connected to the top of the curved electric slide rail (5); and the top of the bearing ring (6) is fixedly connected to the bottom of the mounting box (2); The inner wall of the arc-shaped electric slide rail (5) is slidably connected to a sliding block (7), the sliding block (7), the bottom of the sliding block (7) is fixedly connected to a mounting plate (8), the bottom of the mounting plate (8) is plugged with a plug-in block (9), the bottom of the plug-in block (9) is fixedly connected to a connecting plate (10), the bottom of the connecting plate (10) is provided with a plurality of mounting holes (11), the inner wall of the mounting hole (11) is plugged with an elastic plug (12), the inner wall of the elastic plug (12) is fixedly connected to a pressure sensor, the bottom of the elastic plug (12) is fixedly connected to a polishing plate (13), and the top of the mounting plate (8) is fixedly connected to a transmitter (14).

2. A polishing device for building steel structure according to claim 1, characterized in that: The inner wall of the mounting plate (8) is fixedly connected to first electric telescopic rods (15) at all four sides, and the four first electric telescopic rods (15) are electrically connected to each other via wires (16). A mounting groove (17) is provided at the bottom of the mounting plate (8), and the inner wall of the mounting groove (17) is sleeved on the surface of the plug-in block (9). The surface of the plug-in block (9) is provided with limiting holes (18) at all four sides, and the output end of the first electric telescopic rod (15) is plugged into the inner wall of the limiting hole (18).

3. A polishing device for building steel structure according to claim 1, characterized in that: The top of the installation platform (1) is fixedly connected to an assembly frame (19), the top of the surface of the assembly frame (19) is fixedly connected to a fixed clamping block (20), one side of the fixed clamping block (20) is fixedly connected to a protective box (21), the inner wall of the protective box (21) is fixedly connected to a first servo motor (22), the output end of the first servo motor (22) is installed with a transmission rod (23), and the front end of the transmission rod (23) is fixedly connected to a connecting rod (24).

4. A polishing device for building steel structure according to claim 3, characterized in that: A motor box (25) is fixedly connected to one side of the connecting rod (24), a second servo motor (26) is fixedly connected to the inner wall of the motor box (25), a movable rod (27) is installed at the output end of the second servo motor (26), a second electric telescopic rod (28) is fixedly connected to the front end of the movable rod (27), and both sides of the top end of the second electric telescopic rod (28) are rotatably connected to the inner wall of the connecting rod (24), and the output end of the second electric telescopic rod (28) is fixedly connected to the top of the installation box (2).

5. The polishing device for building steel structure according to claim 3, characterized in that: A camera (29) is fixedly connected to the middle of the surface of the assembly frame (19), and a control panel (30) is fixedly connected to the top of one side of the assembly frame (19).

6. A polishing device for building steel structure according to claim 1, characterized in that: Support columns (31) are fixedly connected to the four sides of the bottom of the installation platform (1), and partitions (32) are fixedly connected to both sides of the top of the installation platform (1).

7. A polishing device for building steel structure according to claim 6, characterized in that: Two sleeve tubes (33) are fixedly connected to one side of the partition (32), a third electric telescopic rod (34) is fixedly connected to the inner wall of the sleeve tube (33), and an output end of the third electric telescopic rod (34) penetrates and is plugged into the inner wall of the partition (32).

8. A polishing device for building steel structure according to claim 7, characterized in that: A clamping plate (35) is installed at the output end of the third electric telescopic rod (34), and the clamping plate (35) is arranged on a side of the partition plate (32) opposite to the sleeve tube (33).

Images