Laser treatment process and equipment for bolted steel structure surface

Abstract

The invention provides a bolted steel structure surface laser treatment process and equipment, the bolted steel structure surface laser treatment equipment comprises a treatment table, a limiting assembly and a dust removal assembly, a fixed right-angle barrier strip is fixedly connected to one corner above the treatment table, a movable right-angle barrier strip is arranged above the treatment table, and the movable right-angle barrier strip and the fixed right-angle barrier strip are arranged diagonally; a vertical block is fixedly connected to the position, located on the outer side of the fixed right-angle barrier strip, above the treatment table, the two sides of the vertical block are fixedly connected with fixed strips corresponding to the two sides of the fixed right-angle barrier strip correspondingly, and the adjacent sides of the two fixed strips are provided with driving strips arranged in a crossed mode correspondingly. Through control of a cross driving strip and a servo motor, a laser head can cover the whole table top of the treatment table, operation does not need to be interrupted to adjust parameters when workpieces of different sizes are treated, a clamp does not need to be replaced due to the adjustable design of a diagonal clamping structure of a fixed right-angle barrier strip and a movable right-angle barrier strip, a sliding block matched with a limiting assembly and an extension frame, and the clamp replacement time is shortened.

Description

Technical Field

[0001] This invention relates to the field of steel structure surface treatment technology, specifically to a laser treatment process and equipment for bolted steel structure surfaces. Background Technology

[0002] Bolted steel structures are critical connection structures in wind power projects, and their surface condition directly affects connection strength, corrosion resistance, and overall service life. During manufacturing, transportation, installation, and long-term operation, their surfaces often require cleaning (rust removal, paint removal, oxide layer removal) or strengthening treatments to improve the adhesion of surface coatings to the substrate and enhance the corrosion resistance of the steel structure in harsh environments. Laser cleaning offers advantages such as non-contact operation, high efficiency, and minimal environmental pollution, making it particularly suitable for scenarios like wind power steel structures that are frequently operated outdoors, at high altitudes, and where maintenance is challenging. Therefore, it is superior and more applicable for cleaning steel structure surfaces.

[0003] Currently, laser treatment equipment for bolted steel structure surfaces mostly adopts a guide rail or gantry structure, where the laser head's travel distance is mechanically fixed. When treating steel structures with varying dimensions, operators need to frequently manually adjust the equipment's position or reset the motion parameters of the electrical control program. This frequent intervention reduces overall work efficiency and disrupts the continuity of the process. Laser treatment (especially rust removal) essentially vaporizes or peels off surface contaminants instantaneously, generating a large amount of rust dust and fumes rich in metal particles. Existing equipment generally lacks a fume collection system, allowing these suspended particles to rapidly diffuse into the work area, adhering to electrical interfaces and mechanical transmission components of workshop equipment. This can easily lead to poor contact and accelerated component wear. Long-term inhalation of these fine particles can easily cause irreversible occupational respiratory damage such as pneumoconiosis, posing a serious threat to occupational health. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the present invention aims to provide a laser processing technology and equipment for bolted steel structure surfaces, thereby solving the problems mentioned in the background section. This invention utilizes cross-arranged drive bars and servo motor control, allowing the laser head to cover the entire processing table. When processing workpieces of different sizes, there is no need to interrupt the operation to adjust parameters. The diagonal clamping structure of the fixed and movable right-angle stops, combined with the adjustable design of the slider and extension frame of the limiting component, eliminates the need to change fixtures, reducing fixture change time.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a laser processing device for bolted steel structure surfaces, comprising a processing table, a fixed right-angle stop bar fixedly connected to one corner of the upper part of the processing table, a movable right-angle stop bar arranged diagonally opposite to the fixed right-angle stop bar above the processing table, a vertical block fixedly connected to the upper part of the processing table outside the fixed right-angle stop bar, and two fixing bars fixedly connected to both sides of the vertical block respectively, corresponding to the two sides of the fixed right-angle stop bar, the two fixing bars being vertically arranged, and a convex groove penetrating to one side of each of the two fixing bars, with intersecting drive bars arranged on adjacent sides of the two fixing bars respectively. A laser processing device is provided at the intersection of the two drive bars; a limiting component is provided between the movable right-angle stop bar and the fixed bar, the limiting component includes limiting bars respectively provided below the two fixed bars, and a limiting plate that slides and fits on the inner wall of the convex groove is fixedly connected to the top of the limiting bar; a dust removal component is provided between the processing table and the laser processing device, the dust removal component includes a dust collection box fixedly installed above the processing table, a docking baffle is fixedly connected to the periphery of the top opening of the dust collection box, a fixed plate is fixedly connected to one side of the laser processing device, and a collection box that cooperates with the docking baffle is fixedly connected below the fixed plate.

[0006] Furthermore, a placement groove is provided at one corner of the upper part of the processing table opposite to the fixed right-angle stop. The movable right-angle stop cooperates with the placement groove, and a slightly protruding ball bearing is rotatably fitted on the surface of the processing table. The movable right-angle stop can be embedded in the placement groove to keep the table surface flat and facilitate the movement of the workpiece.

[0007] Furthermore, servo motors are fixedly installed on the inner walls of both convex grooves, and screws are fixedly connected to the output shafts of the servo motors. A drive block that slides within the convex groove and is threaded with the screw is fixedly connected to one side of the drive bar. The drive block is located in the space between the limiting plate and the inner wall of one side of the convex groove. A displacement groove is opened downward through the upper side of the two drive bars. A displacement block that slides within the inner wall of the displacement groove at the intersection of the two drive bars is fixedly connected to the top of the laser processing device.

[0008] Furthermore, an extension frame is fixedly connected to one side of each side of the fixed right-angle stop bar along its length direction. A slider is slidably fitted on the inner wall of the extension frame, and the outer side of the slider is fixedly connected to one side of the bottom of the limiting bar.

[0009] Furthermore, a connecting rod is provided on one side of each side of the movable right-angle stop bar along its length direction, and a limiting groove is opened inward on one side of each side of the movable right-angle stop bar. A limiting plate that slides with the limiting groove is fixedly connected to one end of the connecting rod located inside the movable right-angle stop bar.

[0010] Furthermore, a vertical plate is fixedly connected to one end of the connecting rod near the slider. A T-shaped groove is provided on one side of the vertical plate. A T-shaped block that slides in cooperation with the T-shaped groove is fixedly connected to one side of the slider. A stud that slides in cooperation with the inner wall of the extension frame through groove is fixedly connected to the upper side of the slider. A fixing nut that abuts against the outer side of the extension frame is threaded around the stud.

[0011] Furthermore, a through groove is provided on one side plate of the bottom opening of the collection box, and a drain plate that matches the bottom opening of the collection box is slidably fitted on the inner wall of the through groove. A stop block is fixedly connected to one side of the drain plate, and a closing spring is fixedly connected between one side of the stop block and the side plate of the bottom opening of the collection box.

[0012] Furthermore, a vacuum cleaner is fixedly connected to the bottom of the fixed plate, and a corrugated conveying pipe that can be extended and retracted vertically is fixedly connected to the suction port of the vacuum cleaner. A suction frame located at the laser processing device's work area on the bolted steel structure surface is fixedly connected to the inlet of the corrugated conveying pipe.

[0013] Furthermore, the inner wall of the collection box is slidably fitted with a scraping frame, and a connecting frame is provided between the bottom of the scraping frame and the upper side of the drain plate. The two ends of the connecting frame are rotatably fitted with the lower side of the scraping frame and the upper side of the drain plate, respectively, and the two rotating parts are located on opposite sides.

[0014] A laser treatment process for the surface of bolted steel structures, the laser treatment process comprising the following steps: S1: Pre-treatment inspection: Check the flexibility of the ball bearing rotation on the processing table, the sealing of the dust removal component's vacuum cleaner and corrugated conveyor pipe, and ensure that all parts of the equipment are in normal working condition. S2: Steel structure positioning: Place the bolted steel structure on the processing table and move it with the help of ball bearings. The fixed right-angle stop and the movable right-angle stop are diagonally limited by the fixed right-angle stop and the limit bar, the limit bar, slider and connecting rod of the limit component are adjusted, and the position of the steel structure is locked with the fixed nut. The movable right-angle stop is placed in the groove as needed. S3: Laser processing parameter setting and operation: Start the servo motor in the convex groove, set the drive parameters, so that the screw drives the drive block and drive bar to move. The laser processing device slides in the displacement groove at the intersection of the two drive bars through the displacement block, and performs laser operation on the steel structure surface according to the preset trajectory. S4: Real-time collection and cleaning of rust ash: During operation, the vacuum cleaner collects rust ash into the collection box through the vacuum frame aimed at the laser operation area and the corrugated conveyor pipe. After operation, the rust ash is discharged by pulling the drain plate. The scraper frame is linked with the drain plate through the connecting frame to clean the residual rust ash on the inner wall of the collection box at the same time. S5: Post-processing: Loosen the fixing nut, adjust the limit component to release the steel structure lock, remove the treated steel structure with the help of the ball bearings, check the surface quality of the treated surface, and clean the residual impurities on the treatment table.

[0015] The beneficial effects of this invention are: 1. The laser processing technology and equipment for bolted steel structure surfaces are controlled by cross drive bars and servo motors. The laser head can cover the entire processing table. When processing workpieces of different sizes, there is no need to interrupt the operation to adjust parameters. The diagonal clamping structure of the fixed right-angle stop bar and the movable right-angle stop bar, together with the adjustable design of the slider and extension frame of the limit component, eliminates the need to replace the fixture and reduces the fixture replacement time.

[0016] 2. The laser treatment process and equipment for the surface of the bolted steel structure can effectively collect rust dust and fumes generated by laser treatment through a dual dust removal structure of initial interception by a follow-up collection box and deep adsorption by a negative pressure dust collection frame. Operators do not need to be exposed to high concentrations of fumes for a long time, which reduces the risk of occupational diseases such as pneumoconiosis and respiratory inflammation from the source. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the laser treatment process for the surface of a bolted steel structure according to the present invention. Figure 2 This is a schematic diagram of the overall structure of a laser processing device for bolted steel structure surfaces according to the present invention; Figure 3 This is a schematic diagram of the structure of a laser processing device for bolted steel structure surfaces according to the present invention, in which a movable right-angle stop bar is located above the processing table; Figure 4 For the present invention Figure 3 -Enlarged structural diagram at point A; Figure 5 For the present invention Figure 3 Enlarged structural diagram at point B; Figure 6 For the present invention Figure 3 - Enlarged structural diagram at point C; Figure 7 For the present invention Figure 3 Enlarged structural diagram at point -D; Figure 8 This is a schematic diagram of the dust removal component in a laser processing device for bolted steel structure surfaces according to the present invention; Figure 9 For the present invention Figure 8 Enlarged structural diagram at point -E; Figure 10 This is a schematic diagram of the structure of a laser processing device for bolted steel structure surfaces according to the present invention, in which two drive bars are arranged in a cross configuration; Figure 11For the present invention Figure 10 - Enlarged structural diagram at point F.

[0018] In the diagram: 1. Processing table; 2. Fixed right-angle stop bar; 3. Movable right-angle stop bar; 4. Limiting assembly; 401. Limiting bar; 402. Limiting plate; 403. Extension frame; 404. Slider; 405. Connecting rod; 406. Limiting groove; 407. Limiting disc; 408. Vertical plate; 409. T-slot; 410. T-block; 411. Stud; 412. Fixing nut; 5. Vertical block; 6. Fixing bar; 7. Drive bar; 8. Laser processing device; 9. Dust removal assembly; 901. Dust collection box; 902. Docking baffle; 903. Fixing plate; 904. Collection box; 905. Through slot; 906. Sewage discharge plate; 907. Stop block; 908. Closed spring; 909. Vacuum cleaner; 910. Corrugated conveying pipe; 911. Dust collection frame; 912. Scraper frame; 913. Connecting frame; 10. Placement slot; 11. Ball bearing; 12. Convex slot; 13. Servo motor; 14. Screw; 15. Drive block; 16. Displacement slot; 17. Displacement block. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0020] like Figure 1 As shown, a laser treatment process for the surface of a bolted steel structure includes the following steps: S1: Pre-treatment inspection: Check the flexibility of the ball bearing 11 on the table of the processing table 1 and the sealing of the vacuum cleaner 909 and the corrugated conveyor pipe 910 of the dust removal component 9 to ensure that all parts of the equipment are in normal working condition. S2: Steel structure positioning: Place the bolted steel structure on the processing table 1, move it with the help of the ball bearing 11, limit it diagonally by the fixed right angle stop 2 and the movable right angle stop 3, adjust the limit bar 401, slider 404 and connecting rod 405 of the limit component 4, and lock the position of the steel structure with the fixed nut 412. The movable right angle stop 3 is placed in the slot 10 as needed. S3: Laser processing parameter setting and operation: Start the servo motor 13 in the convex groove 12, set the drive parameters, so that the screw 14 drives the drive block 15 and drive bar 7 to move. The laser processing device 8 slides in the displacement groove 16 at the intersection of the two drive bars 7 through the displacement block 17, and performs laser operation on the steel structure surface according to the preset trajectory. S4: Real-time collection and cleaning of rust dust: During operation, the vacuum cleaner 909 collects rust dust into the collection box 904 through the vacuum frame 911 aimed at the laser operation area and the corrugated conveying pipe 910. After operation, the drain plate 906 is pulled to discharge the rust dust. The scraper frame 912 is linked with the drain plate 906 through the connecting frame 913 to clean the residual rust dust on the inner wall of the collection box 904 simultaneously. S5: Post-processing: Loosen the fixing nut 412, adjust the limit component 4 to release the steel structure lock, remove the processed steel structure with the help of the ball bearing 11, check the surface quality of the processed surface, and clean the residual impurities on the processing table 1.

[0021] like Figures 2 to 11 This invention provides a technical solution: a laser processing device for bolted steel structure surfaces, comprising a processing table 1, a fixed right-angle stop bar 2 fixedly connected to one corner of the processing table 1, a movable right-angle stop bar 3 arranged diagonally opposite to the fixed right-angle stop bar 2 above the processing table 1, a vertical block 5 fixedly connected to the outside of the fixed right-angle stop bar 2 above the processing table 1, fixing bars 6 corresponding to the two sides of the fixed right-angle stop bar 2 fixedly connected to the two sides of the vertical block 5, the two fixing bars 6 being vertically arranged, a convex groove 12 penetrating to one side of the two fixing bars 6, a cross-arranged drive bar 7 arranged on the adjacent side of the two fixing bars 6, and a laser processing device 8 arranged at the intersection of the two drive bars 7; a placement groove 10 is provided at one corner of the processing table 1 opposite to the fixed right-angle stop bar 2, the movable right-angle stop bar 3 cooperating with the placement groove 10, and a slightly protruding ball bearing 11 rotatingly engaged on the table surface of the processing table 1. When the movable right-angle stop bar 3 is located in the placement slot 10, the surface of the processing table 1 is flat, which facilitates the movement of the bolted steel structure components placed on it. Servo motors 13 are fixedly installed on the inner walls of the two convex slots 12. The output shaft of the servo motor 13 is fixedly connected to a screw 14. A drive block 15 is fixedly connected to one side of the drive bar 7, which slides in the convex slot 12 and is threaded with the screw 14. The drive block 15 is located in the space between the limiting plate 402 and the inner wall of one side of the convex slot 12. A displacement slot 16 is opened downward through the upper side of the two drive bars 7. A displacement block 17 is fixedly connected to the top of the laser processing device 8, which slides in the inner wall of the displacement slot 16 at the intersection of the two drive bars 7.

[0022] In this embodiment, a limiting component 4 is disposed between the movable right-angle stop 3 and the fixed strip 6. The limiting component 4 includes limiting strips 401 respectively disposed below the two fixed strips 6. A limiting plate 402 that slides on the inner wall of the convex groove 12 is fixedly connected to the top of the limiting strip 401. An extension frame 403 is fixedly connected to one side of each of the two sides of the fixed right-angle stop 2 along its length direction. A slider 404 is slidably fitted to the inner wall of the extension frame 403. The outer side of the slider 404 is fixedly connected to one side of the bottom of the limiting strip 401. A connecting rod 405 is provided on one side of each of the two sides of the movable right-angle stop 3 along its length direction. One side of the stop bar 3 has an inwardly opening limit groove 406. One end of the connecting rod 405 located inside the movable right-angle stop bar 3 is fixedly connected to a limit plate 407 that slides with the limit groove 406. One end of the connecting rod 405 near the slider 404 is fixedly connected to a vertical plate 408. One side of the vertical plate 408 has a T-shaped groove 409. One side of the slider 404 is fixedly connected to a T-shaped block 410 that slides with the T-shaped groove 409. The upper side of the slider 404 is fixedly connected to a stud 411 that slides with the inner wall of the through groove of the extension frame 403. The circumferential thread of the stud 411 is threaded with a fixing nut 412 that abuts against the outer side of the extension frame 403.

[0023] Specifically, the fixed right-angle stop 2 at one corner of the upper part of the processing table 1 provides an initial positioning reference for the workpiece. When the bolted steel structure to be processed is placed on the processing table 1, one of its corner edges fits against the inner side of the fixed right-angle stop 2, completing the initial positioning. The ball bearings 11 embedded in the table surface of the processing table 1 can reduce the frictional resistance between the workpiece and the table surface, making it easy for the operator to push the workpiece to adjust its position. The movable right-angle stop 3, which is diagonally set with the fixed right-angle stop 2, achieves clamping and specification adaptation of the workpiece through the limiting component 4. After the workpiece is attached to the fixed right-angle stop 2, the operator pushes the movable right-angle stop 3 towards the workpiece. The connecting rods 405 on both sides of the movable right-angle stop 3 move synchronously with it. The limiting plate 407 at one end of the connecting rod 405 slides in the limiting groove 406 of the movable right-angle stop 3 to ensure the stability of the moving direction of the connecting rod 405. The upright plate 408 at the other end of the connecting rod 405 is linked with the slider 404 through the "T-groove 409-T-block 410" structure, which drives the slider 404 to slide on the inner wall of the extension frame 403. At the same time, the limiting plate 402 at the top of the slider 404 slides synchronously along the convex groove 12 of the fixed strip 6 to form a stable transmission with multi-directional limiting. After the movable right-angle stop bar 2 is in contact with the other side corner of the workpiece, tighten the fixing nut 412 on the slider 404. The fixing nut 412 abuts against the outside of the extension frame 403, thereby locking the position of the movable right-angle stop bar 3 and completing the workpiece clamping. This structure can be adapted to bolted steel structures of different sizes by adjusting the position of the movable right-angle stop bar 3, without the need to change the fixture.

[0024] In this embodiment, a dust removal assembly 9 is disposed between the processing table 1 and the laser processing device 8. The dust removal assembly 9 includes a dust collection box 901 fixedly installed above the processing table 1. A docking baffle 902 is fixedly connected to the periphery of the top opening of the dust collection box 901. A fixing plate 903 is fixedly connected to one side of the laser processing device 8. A collection box 904 cooperating with the docking baffle 902 is fixedly connected below the fixing plate 903. A through groove 905 is formed through one side plate of the bottom opening of the collection box 904. A drain plate 906 cooperating with the bottom opening of the collection box 904 is slidably fitted on the inner wall of the through groove 905. A stop block 907 is fixedly connected to one side of the drain plate 906. A closing spring 908 is fixedly connected between one side of the 7 and the bottom opening side plate of the collection box 904. A vacuum cleaner 909 is fixedly connected below the fixing plate 903. A corrugated conveying pipe 910 that can be extended and retracted vertically is fixedly connected to the suction port of the vacuum cleaner 909. A suction frame 911 located at the working position of the bolted steel structure surface of the laser processing device 8 is fixedly connected at the inlet of the corrugated conveying pipe 910. A scraping frame 912 is slidably fitted on the inner wall of the collection box 904. A connecting frame 913 is provided between the bottom of the scraping frame 912 and the upper side of the drain plate 906. The two ends of the connecting frame 913 are rotatably fitted with the lower side of the scraping frame 912 and the upper side of the drain plate 906, respectively, and the two rotating parts are located on opposite sides.

[0025] Specifically, a collection box 904 is fixed below the fixing plate 903 on one side of the laser processing device 8. The collection box 904 is correspondingly set with the dust collection box 901 on the processing table 1. The docking baffle 902 on the periphery of the top opening of the dust collection box 901 can fit with the bottom edge of the collection box 904 to form a closed collection space. When the laser processing device 8 moves, the collection box 904 moves synchronously with it, always covering the area below the laser processing point. The rust dust and smoke generated during the laser rust removal process first fall into the collection box 904 to prevent them from spreading directly into the air. The vacuum cleaner 909 below the fixing plate 903 is connected to the vacuum frame 911 through the corrugated conveying pipe 910. The vacuum frame 911 faces the laser processing point. After the vacuum cleaner 909 is started, the vacuum frame 911 generates negative pressure, which instantly removes the dust generated during laser processing. The generated suspended dust is directly sucked in and sent to the dust collection box 901 through the corrugated conveyor pipe 910. At the same time, the drain plate 906 at the bottom of the collection box 904 is kept closed by the closing spring 908 to ensure stable negative pressure inside the dust collection box 901. When cleaning is required, the stop block 907 on one side of the drain plate 906 can be pulled to open the bottom opening of the collection box 904, allowing the accumulated rust dust inside to fall into the dust collection box 901. The cleaning process does not require stopping the machine. The scraping frame 912, which is slidably embedded in the inner wall of the collection box 904, is linked to the drain plate 906 through the connecting frame 913. When the drain plate 906 is pulled open, the connecting frame 913 drives the scraping frame 912 to slide up and down along the inner wall of the collection box 904 to scrape off the residual dust attached to the inner wall of the collection box 904, avoiding long-term accumulation that would reduce collection efficiency.

[0026] When using the device, first perform equipment pretreatment, check the status of each component, adjust the bottom support of the processing table 1 to ensure the table surface is level, start the vacuum cleaner 909 to test the negative pressure adsorption effect, and at the same time drive the drive bar 7 through the servo motor 13 to move the laser processing device 8 to the initial position of the edge of the processing table 1 to ensure sufficient space for the workpiece. Next, the workpiece is placed and positioned. The operator places the bolted steel structure to be processed stably on the table 1. The ball bearings 11 that protrude slightly on the table reduce friction, and the workpiece is pushed so that one corner of it fits tightly against the inside of the fixed right-angle stop 2, establishing an initial positioning reference. Then, the diagonally positioned movable right-angle stop 3 is pushed to move towards the workpiece. During the process, the connecting rods 405 on both sides of the movable right-angle stop 3 move synchronously. The limiting plate 407 at one end of the connecting rod 405 slides in the limiting groove 406, and the vertical plate 408 at the other end drives the slider 404 to slide along the extension frame 403 through the "T-shaped groove 409-T-shaped block 410". At the same time, the limiting plate 402 at the top of the slider 404 moves synchronously along the convex groove 12 of the fixed strip 6, forming a multi-directional stable guide until the movable right-angle stop 3 fits against the other corner of the workpiece. The fixing nut 412 on the slider 404 is tightened so that the fixing nut 412 abuts against the outside of the extension frame 403, completing the workpiece clamping and fixing. The laser processing program is then started. Laser parameters are set according to the workpiece processing requirements. The servo motor 13 drives the screw 14 within the convex groove 12 of the fixed strip 6 to rotate. The screw 14 drives the threaded drive block 15 to move, thereby causing the two intersecting drive strips 7 connected to the drive block 15 to move synchronously. The displacement groove 16 at the intersection, through the displacement block 17, drives the laser processing device 8 to move along the X and Y axes of the processing table 1. The laser head is precisely aligned with the area to be processed on the workpiece and begins operation. During the operation, one side of the laser processing device 8... The collection box 904 below the fixed plate 903 moves synchronously with the laser device. Its bottom fits against the docking baffle 902 on the top of the dust collection box 901 to form a closed space. The rust dust and smoke generated by the laser treatment first fall into the collection box 904. At the same time, the vacuum cleaner 909 draws in the suspended dust and smoke through the retractable corrugated conveying pipe 910 and the vacuum frame 911 facing the treatment point to generate negative pressure and transport it to the dust collection box 901. The drain plate 906 at the bottom of the collection box 904 is kept closed by the closing spring 908 to ensure stable negative pressure.After the entire surface area of ​​the workpiece has been processed, turn off the laser generator and servo motor, stop the movement of the laser processing device, and turn off the vacuum cleaner 909. If it is necessary to clean the accumulated rust and dust in the collection box 904, pull the stop block 907 on one side of the drain plate 906. The drain plate 906 moves to open the bottom opening of the collection box 904. At the same time, the scraping frame 912 on the inner wall of the collection box 904 is moved up and down by the connecting frame 913 to scrape off the residual smoke and dust on the inner wall. After the rust and dust fall into the dust collection box 901, release the stop block 907. The closing spring 908 drives the drain plate 906 to reset and close. Finally, loosen the fixing nut 412, push the movable right-angle stop bar 3 away from the workpiece, take out the processed workpiece, clean the residual impurities on the processing table 1, and restore the equipment to the initial state to wait for the next operation.

[0027] The foregoing has shown and described the basic principles and main features of the present invention and its advantages. It will be apparent to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A laser processing device for the surface of bolted steel structures, characterized in that, include: A processing table (1) is provided with a fixed right-angle baffle (2) fixedly connected to one corner above the processing table (1). A movable right-angle baffle (3) is provided above the processing table (1) and is diagonally arranged with the fixed right-angle baffle (2). A vertical block (5) is fixedly connected above the processing table (1) and is located outside the fixed right-angle baffle (2). Fixed strips (6) corresponding to the two sides of the fixed right-angle baffle (2) are fixedly connected to the two sides of the vertical block (5). The two fixed strips (6) are vertically arranged. A convex groove (12) is opened through one side of the two fixed strips (6). A drive strip (7) is arranged in a cross arrangement on the adjacent side of the two fixed strips (6). A laser processing device (8) is arranged at the intersection of the two drive strips (7). Limiting component (4), the limiting component (4) is disposed between the movable right angle stop (3) and the fixed bar (6), the limiting component (4) includes limiting bars (401) respectively disposed below the two fixed bars (6), and the top of the limiting bar (401) is fixedly connected to a limiting plate (402) that slides in fit with the inner wall of the convex groove (12). A dust removal assembly (9) is disposed between the processing table (1) and the laser processing device (8). The dust removal assembly (9) includes a dust collection box (901) fixedly installed above the processing table (1). A docking baffle (902) is fixedly connected to the periphery of the top opening of the dust collection box (901). A fixing plate (903) is fixedly connected to one side of the laser processing device (8). A collection box (904) that cooperates with the docking baffle (902) is fixedly connected below the fixing plate (903).

2. The laser processing equipment for the surface of bolted steel structures according to claim 1, characterized in that: A placement groove (10) is provided at one corner above the processing table (1) opposite to the fixed right-angle stop bar (2). The movable right-angle stop bar (3) cooperates with the placement groove (10). A slightly protruding ball bearing (11) is rotatably fitted on the surface of the processing table (1).

3. The laser processing equipment for the surface of bolted steel structures according to claim 2, characterized in that: Servo motors (13) are fixedly installed on the inner walls of the two convex grooves (12). The output shaft of the servo motors (13) is fixedly connected to a screw (14). A drive block (15) is fixedly connected to one side of the drive bar (7), which slides in the convex groove (12) and is threaded in the screw (14). The drive block (15) is located in the space between the limiting plate (402) and the inner wall of one side of the convex groove (12). A displacement groove (16) is opened downward through the upper side of the two drive bars (7). A displacement block (17) is fixedly connected to the top of the laser processing device (8), which slides in the inner wall of the displacement groove (16) at the intersection of the two drive bars (7).

4. The laser processing equipment for the surface of bolted steel structures according to claim 3, characterized in that: An extension frame (403) is fixedly connected to one side of the fixed right-angle stop bar (2) along its length direction. A slider (404) is slidably fitted on the inner wall of the extension frame (403). The outer side of the slider (404) is fixedly connected to one side of the bottom of the limiting bar (401).

5. The laser processing equipment for the surface of bolted steel structures according to claim 4, characterized in that: A connecting rod (405) is provided on one side of the movable right-angle stop (3) along its length direction. A limiting groove (406) is opened inward on one side of the movable right-angle stop (3). A limiting plate (407) that slides with the limiting groove (406) is fixedly connected to one end of the connecting rod (405) inside the movable right-angle stop (3).

6. The laser processing equipment for the surface of bolted steel structures according to claim 5, characterized in that: The connecting rod (405) is fixedly connected to a vertical plate (408) at one end near the slider (404). A T-shaped groove (409) is provided on one side of the vertical plate (408). A T-shaped block (410) that slides in cooperation with the T-shaped groove (409) is fixedly connected to one side of the slider (404). A stud (411) that slides in cooperation with the inner wall of the through groove of the extension frame (403) is fixedly connected to the upper side of the slider (404). A fixing nut (412) that abuts against the outer side of the extension frame (403) is threaded on the circumference of the stud (411).

7. The laser processing equipment for the surface of bolted steel structures according to claim 1, characterized in that: A through groove (905) is provided through one side plate of the bottom opening of the collection box (904). A drain plate (906) that matches the bottom opening of the collection box (904) is slidably fitted on the inner wall of the through groove (905). A stop block (907) is fixedly connected to one side of the drain plate (906). A closing spring (908) is fixedly connected between one side of the stop block (907) and the side plate of the bottom opening of the collection box (904).

8. The laser processing equipment for the surface of bolted steel structures according to claim 7, characterized in that: A vacuum cleaner (909) is fixedly connected to the bottom of the fixed plate (903). The vacuum cleaner (909) has a vacuum port fixedly connected to a corrugated conveying pipe (910) that can be extended up and down. The inlet of the corrugated conveying pipe (910) is fixedly connected to a vacuum frame (911) located at the laser processing device (8) on the surface of the bolted steel structure.

9. The laser processing equipment for the surface of bolted steel structures according to claim 8, characterized in that: The inner wall of the collection box (904) is slidably fitted with a scraping frame (912). A connecting frame (913) is provided between the bottom of the scraping frame (912) and the upper side of the drain plate (906). The two ends of the connecting frame (913) are rotatably fitted with the lower side of the scraping frame (912) and the upper side of the drain plate (906), respectively, and the two rotating parts are located on opposite sides.

10. A laser processing technology for the surface of a bolted steel structure implemented by the device according to claim 1, characterized in that: The laser processing technology includes the following steps: S1: Pre-treatment inspection: Check the flexibility of the ball bearing (11) rotation of the processing table (1), the sealing of the vacuum cleaner (909) and the corrugated conveyor pipe (910) of the dust removal component (9), and ensure that all parts of the equipment are in normal working condition; S2: Steel structure positioning: Place the bolted steel structure on the processing table (1), move it with the help of the ball bearing (11), limit the diagonal position of the fixed right angle stop (2) and the movable right angle stop (3), adjust the limit bar (401), slider (404) and connecting rod (405) of the limit assembly (4), and lock the position of the steel structure with the fixed nut (412). The movable right angle stop (3) is placed in the slot (10) as needed. S3: Laser processing parameter setting and operation: Start the servo motor (13) in the convex groove (12), set the driving parameters, so that the screw (14) drives the drive block (15) and drive bar (7) to move. The laser processing device (8) slides in the displacement groove (16) at the intersection of the two drive bars (7) through the displacement block (17) and performs laser operation on the steel structure surface according to the preset trajectory. S4: Real-time collection and cleaning of rust dust: During operation, the vacuum cleaner (909) is aimed at the laser operation area through the vacuum frame (911) and the corrugated conveyor pipe (910) to collect rust dust into the collection box (904). After operation, the drain plate (906) is pulled to discharge the rust dust. The scraper frame (912) is linked with the drain plate (906) through the connecting frame (913) to clean the residual rust dust on the inner wall of the collection box (904) at the same time. S5: Post-processing: Loosen the fixing nut (412), adjust the limit component (4) to release the steel structure lock, remove the processed steel structure with the help of the ball (11), check the quality of the processed surface, and clean the residual impurities of the processing table (1).

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