A laser drilling device for steel structure production

Abstract

This invention discloses a laser drilling device for steel structure production, belonging to the field of laser drilling. It includes a base, with a machine base fixedly connected to one side of the back of the top of the base. A movable arm is mounted on one side of the machine base, and a laser head is fixedly connected to the bottom of the movable arm. A worktable is fixedly connected to the middle of the top of the base, and an air-blowing component for blowing away slag generated during drilling is provided at the edge of the top of the worktable. In use, an air pump can be activated, and airflow is ejected at high speed through multiple nozzles on the annular cavity to blow away the slag generated during drilling. The blowing airflow carries the slag into the collection hood for collection. When the airflow passes through the holes, it accelerates the discharge of slag from the inside of the holes, effectively inhibiting slag adhesion to the hole walls, significantly improving the smoothness of the hole walls, and reducing subsequent grinding and slag cleaning processes.

Description

Technical Field

[0001] This invention relates to the field of laser drilling, and more specifically, to a laser drilling device for steel structure production. Background Technology

[0002] Laser drilling of steel structural components is a method of drilling holes in sheet metal parts using laser technology. High-density laser energy is used to irradiate the sheet metal parts through a focused laser beam, causing the local temperature to rise rapidly, resulting in a phase change of the material from solid to liquid or even gas.

[0003] When the laser head cuts and drills holes in sheet metal parts, residue falls off. The cooling of the gas causes the residue to cool down rapidly, causing it to stick to the machine tool's processing table. As the sheet metal is continuously drilled, the residue accumulates on the processing table and becomes difficult to clean, increasing the difficulty of subsequent cleaning.

[0004] To address the aforementioned issues, Chinese Patent CN118951420B discloses a laser drilling device for sheet metal parts. This device catches sparks and residue generated at the bottom of the sheet metal part during laser drilling, preventing sparks and residue from splashing and facilitating residue collection, thus solving the problem of residue accumulation. The device relies solely on a single-channel coaxial low-pressure airflow at the laser head for slag removal. In the machining of thick steel plates and deep holes with large depth-to-diameter ratios, molten metal residue easily accumulates inside the hole, failing to be discharged promptly. This can lead to problems such as slag buildup at the hole outlet, nodules on the hole wall, and blockage of the hole, requiring manual secondary grinding and cleaning. Summary of the Invention

[0005] In view of the problems existing in the prior art, the purpose of this invention is to provide a laser drilling device for steel structure production.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] A laser drilling device for steel structure production includes a base, a machine base is fixedly connected to one side of the back of the top of the base, a movable arm is provided on one side of the machine base, a laser head is fixedly connected to the bottom of the movable arm, a worktable is fixedly connected to the middle of the top of the base, and an air blowing component for blowing away the molten slag generated during drilling is provided at the edge of the top of the worktable. The air blowing assembly includes an annular cavity fixed at the top edge of the workbench and a rotating ring rotatably connected to the middle of the workbench. Two sets of air jets are opened on the top of the inner surface of the annular cavity. Guide pipes are fixedly connected to both sides of the bottom of the annular cavity. A collection cover is rotatably connected to the bottom of the rotating ring. A high-temperature resistant metal water-cooled baffle and an activated carbon filter element are fixedly connected to the bottom of the collection cover in sequence. An air pump is fixedly connected to the bottom of the activated carbon filter element. The output end of the air pump is connected to the outer surface of the guide pipe.

[0008] Furthermore, the top of the annular cavity is provided with a sealing assembly for preventing smoke escape. The sealing assembly includes a sealing groove fixed to the top of the annular cavity and first springs fixed to both sides of the bottom of the moving arm. The bottom ends of the two first springs are fixedly connected to sealing covers, and the top of the sealing covers is provided with slots.

[0009] Furthermore, the slot is adapted to the laser head, and sealing rings are provided on both sides of the inner surface of the sealing groove. The sealing groove is adapted to the lower edge of the sealing cover.

[0010] Furthermore, the top of the rotating ring is provided with a slag-removing assembly for grinding molten slag. The slag-removing assembly includes a fixed disc fixed to the inner side of the rotating ring, a first arc-shaped rack symmetrically fixed to the top of the rotating ring, and a driving component provided on one side of the top of the base. The top of the fixed disc is evenly provided with four straight grooves, and a slider is slidably connected inside the straight grooves. A round shaft is fixedly connected to the top of the slider, and a grinding block is fixedly connected to the top of the round shaft. The top of the fixed disc is symmetrically provided with arc-shaped grooves, and a rotating disc is slidably connected inside two of the arc-shaped grooves. The rotating disc is evenly provided with four driving inclined grooves inside, and limit components are provided on both sides of the rotating disc.

[0011] Furthermore, the rotating disk is located above the fixed disk and is coaxially arranged. The circular shaft passes through the interior of the driving inclined groove and is slidably adapted. The gap between the straight slide groove and the driving inclined groove is filled with high-temperature resistant flexible protective bristles to prevent metal chips from falling into the groove and jamming the slider. The bottom of the fixed disk is provided with a support foot, and the support foot is fixed to the inner wall of the rotating ring.

[0012] Furthermore, the limiting component includes two first arc-shaped racks fixed symmetrically to the top of the rotating ring and two rotating plates fixed symmetrically to the outer surface of the rotating disk. A first pull rod is slidably connected inside the rotating plate, and a second arc-shaped rack is fixedly connected to the bottom of the first pull rod. A second spring is sleeved on the outer surface of the first pull rod. The second arc-shaped rack meshes with the first arc-shaped rack. The second spring is located between the second arc-shaped rack and the rotating plate and is in a compressed state.

[0013] Furthermore, the driving component includes a drive motor fixed to one side of the top of the base and an annular rack fixed to the bottom edge of the rotating ring. The output end of the drive motor is fixedly connected to a gear, which meshes with the annular rack.

[0014] Furthermore, the inner wall of the annular cavity is provided with a purging assembly, which includes a fixing plate fixed symmetrically to the top of the inner wall of the annular cavity and multiple air distribution ports opened at the bottom of the inner wall of the annular cavity. The fixing plate is rotatably connected to a threaded rod, and the outer surface of the threaded rod is threadedly connected to an internal threaded plate. The bottom of the two internal threaded plates is fixedly connected to an annular shielding plate.

[0015] Furthermore, the air distribution port is interconnected with the interior of the annular cavity, a soft silicone layer is provided on one side of the annular shielding plate, and the width of the annular shielding plate is greater than the distance between the two sets of air outlets.

[0016] Furthermore, adaptive clamping assemblies are provided on both sides of the top of the workbench. The adaptive clamping assemblies include placement plates fixed to both sides of the top of the workbench. Two movable plates are slidably connected inside the placement plates. Five straight racks are slidably connected inside each movable plate. A clamping plate is hinged to one side of each straight rack. A top plate is fixedly connected to the top of one side of each movable plate. A second pull rod is slidably connected inside the top plate. A fourth spring is sleeved on the outer surface of the second pull rod. A fixed rack is fixedly connected to the bottom of the second pull rod. A third spring is fixedly connected to one side of each clamping plate. One side of the third spring is fixed to the movable plate.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This solution is equipped with an air blowing component. After the air pump is started, the airflow is ejected at high speed through multiple jet nozzles on the annular cavity to blow away the slag generated during drilling. The blowing airflow carries the slag into the inside of the collection hood for collection. When the airflow passes through the hole, it can accelerate the discharge of slag from the hole during drilling, effectively inhibiting the adhesion of slag nodules to the hole wall, significantly improving the smoothness of the hole wall, and reducing the subsequent grinding and slag cleaning processes.

[0018] 2. This solution incorporates a slag-cleaning component. The rotating ring synchronously drives the fixed disc and multiple grinding blocks to rotate simultaneously. The grinding blocks grind and clean the slag hanging at the outlet of the hole, achieving a smooth, burr-free outlet edge. This eliminates the need for subsequent manual cleaning of the outlet slag using angle grinders, files, and pneumatic chisels, reducing labor input and shortening the overall production cycle.

[0019] 3. This solution is equipped with a purging component. By rotating the threaded rod, the annular shielding plate is moved upward through the internal threaded plate, exposing the air distribution port. The airflow inside the annular cavity is ejected from the air distribution port and purifies the surface of the workbench, blowing all the molten slag on the workbench surface towards the collection hood for collection, which can reduce the manual cleaning work on the workbench surface. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the sealing cover structure of the present invention; Figure 3 This is a schematic diagram of the internal structure of the annular cavity of the present invention; Figure 4 This is a schematic diagram of the air blowing component structure of the present invention; Figure 5 This is a schematic diagram of the slag removal component structure of the present invention. Figure 1 ; Figure 6 This is a schematic diagram of the slag removal component structure of the present invention. Figure 2 ; Figure 7 This is a schematic diagram of the purging assembly structure of the present invention; Figure 8 This is a schematic diagram of the adaptive clamping component structure of the present invention. Figure 1 ; Figure 9 This is a schematic diagram of the adaptive clamping component structure of the present invention. Figure 2 .

[0021] Explanation of the labels in the diagram: 1. Base; 2. Moving arm; 3. Base; 4. Laser head; 5. Worktable; 6. Air blowing assembly; 61. Annular cavity; 62. Air jet nozzle; 63. Guide tube; 64. Sealing assembly; 641. First spring; 642. Sealing cover; 643. Groove; 644. Sealing groove; 65. Slag removal assembly; 651. Drive motor; 652. Gear; 653. Ring rack; 654. Fixed disc; 655. Rotating disc; 656. Grinding block; 657. Drive slant groove; 658. Linear slide groove; 659. Slider; 6510. Round shaft; 6511. Rotating plate; 6512. First arc-shaped rack; 6513. Second arc-shaped rack; 6514. First pull rod; 6515. Second spring; 6516. Arc-shaped slide groove; 66. Purge assembly; 661. Fixing plate; 662. Threaded rod; 663. Internal threaded plate; 664. Annular shielding plate; 665. Air distribution port; 67. Collection hood; 68. Rotating ring; 69. Activated carbon filter element; 610. Air pump; 7. Adaptive clamping assembly; 71. Placement plate; 72. Moving plate; 73. Straight rack; 74. Clamping plate; 75. Third spring; 76. Fixed rack; 77. Top plate; 78. Fourth spring; 79. Second pull rod. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0023] Please see Figures 1 to 9 A laser drilling device for steel structure production includes a base 1, a base 3 fixedly connected to one side of the back of the top of the base 1, a movable arm 2 provided on one side of the base 3, a laser head 4 fixedly connected to the bottom of the movable arm 2, a worktable 5 fixedly connected to the middle of the top of the base 1, and an air blowing component 6 for blowing away the slag generated during drilling provided at the edge of the top of the worktable 5.

[0024] like Figures 3-4 As shown, the air blowing assembly 6 includes an annular cavity 61 fixed at the top edge of the workbench 5 and a rotating ring 68 rotatably connected to the middle of the inside of the workbench 5. Two sets of air jets 62 are opened on the top of the inner surface of the annular cavity 61. Guide pipes 63 are fixedly connected to both sides of the bottom of the annular cavity 61. A collection cover 67 is rotatably connected to the bottom of the rotating ring 68. A high-temperature resistant metal water-cooled baffle and an activated carbon filter element 69 are fixedly connected to the bottom of the collection cover 67 in sequence. An air pump 610 is fixedly connected to the bottom of the activated carbon filter element 69. The output end of the air pump 610 is connected to the outer surface of the guide pipe 63.

[0025] When laser drilling is performed on a steel structure, the steel workpiece is positioned above a rotating ring 68. The air pump 610 is activated to deliver a large volume of airflow into the guide tube 63. The airflow enters the annular cavity 61 through the guide tube 63 and is ejected at high speed through multiple jet nozzles 62 on the annular cavity 61. The ejected airflow blows towards the drilling site, sweeping away the molten slag generated during drilling. Simultaneously, the air pump 610 creates a negative pressure state inside the collection hood 67. The sweeping airflow carries the molten slag into the collection hood 67. Large molten slag particles are first intercepted and cooled by a high-temperature resistant metal water-cooled baffle, then settle. The cooled airflow continues to pass through an activated carbon filter element 69 to filter dust before re-entering the air pump 610 for circulation, completing the collection process. As the airflow passes through the holes, it accelerates the discharge of molten slag from the holes. The side-blowing cleaning through the jet nozzles 62, combined with the negative pressure adsorption below the collection hood 67, effectively suppresses slag buildup on the hole walls, significantly improving the smoothness of the hole walls and reducing subsequent grinding and slag removal processes.

[0026] like Figures 2-3 As shown, the top of the annular cavity 61 is provided with a sealing assembly 64 for preventing smoke escape. The sealing assembly 64 includes a top sealing groove 644 fixed to the annular cavity 61 and first springs 641 fixed to both sides of the bottom of the movable arm 2. The bottom ends of the two first springs 641 are fixedly connected to a sealing cover 642, and the top of the sealing cover 642 is provided with a slot 643.

[0027] The slot 643 is compatible with the laser head 4, and sealing rings are provided on both sides of the inner surface of the sealing groove 644. The sealing groove 644 is compatible with the lower edge of the sealing cover 642.

[0028] During drilling, not only slag is generated, but also a large amount of fumes. The side-blowing airflow from the jet nozzle 62 can effectively suppress the escape of fumes. However, a small amount of fumes may escape near the center of the hole. Therefore, a sealing cover 642 is installed on the worktable 5 during drilling. As the laser head 4 descends, the sealing cover 642 moves downward in sync with it. The sealing cover 642 moves into the interior of the sealing groove 644. When the lower edge of the sealing cover 642 is completely inside the sealing groove 644, the sealing cover 642 stops moving. The laser head 4 continues to move into the interior of the slot 643 and reaches the designated position to perform the drilling operation. The sealing cover 642 seals the top of the annular cavity 61, forming a closed space in the processing area, preventing the escape and diffusion of fumes, and improving the cleanliness of the working environment during processing.

[0029] like Figures 4-6As shown, a slag-removing assembly 65 for grinding molten slag is provided on the top of the rotating ring 68. The slag-removing assembly 65 includes a fixed disc 654 fixed inside the rotating ring 68, a first arc-shaped rack 6512 symmetrically fixed on the top of the rotating ring 68, and a driving component provided on one side of the top of the base 1. The top of the fixed disc 654 is evenly provided with four straight grooves 658. A slider 659 is slidably connected inside the straight grooves 658. A round shaft 6510 is fixedly connected to the top of the slider 659. A grinding block 656 is fixedly connected to the top of the round shaft 6510. The top of the fixed disc 654 is symmetrically provided with arc-shaped grooves 6516. A rotating disc 655 is slidably connected inside the two arc-shaped grooves 6516. The rotating disc 655 is evenly provided with four driving inclined grooves 657 inside. Limiting components are provided on both sides of the rotating disc 655.

[0030] The rotating disk 655 is located above the fixed disk 654 and is coaxially arranged. The circular shaft 6510 passes through the interior of the drive inclined groove 657 and slides to fit it. The gap between the straight slide groove 658 and the drive inclined groove 657 is filled with high-temperature resistant flexible protective bristles to prevent metal chips from falling into the groove and jamming the slider 659. The bottom of the fixed disk 654 is provided with a support foot, and the support foot is fixed on the inner wall of the rotating ring 68.

[0031] The limiting component includes two first arc-shaped racks 6512 that are axially symmetrically fixed to the top of the rotating ring 68 and two rotating plates 6511 that are axially symmetrically fixed to the outer surface of the rotating disk 655. A first pull rod 6514 is slidably connected inside the rotating plate 6511. A second arc-shaped rack 6513 is fixedly connected to the bottom of the first pull rod 6514. A second spring 6515 is sleeved on the outer surface of the first pull rod 6514. The second arc-shaped rack 6513 meshes with the first arc-shaped rack 6512. The second spring 6515 is located between the second arc-shaped rack 6513 and the rotating plate 6511 and is in a compressed state.

[0032] The driving components include a drive motor 651 fixed on one side of the top of the base 1 and an annular rack 653 fixed at the bottom edge of the rotating ring 68. The output end of the drive motor 651 is fixedly connected to a gear 652, and the gear 652 meshes with the annular rack 653.

[0033] During laser drilling, slag can easily accumulate at the hole exit, requiring a secondary slag removal process, which increases processing steps and prolongs the process. To address this, when slag accumulates at the hole exit after laser drilling, the drive motor 651 is activated to drive the gear 652 to rotate synchronously. The gear 652 drives the rotating ring 68 to rotate via the ring rack 653. The rotating ring 68 synchronously drives the fixed disc 654 and multiple grinding blocks 656 to rotate synchronously. The grinding blocks 656 grind and clean the slag at the hole exit, achieving a smooth, burr-free exit edge. This eliminates the need for subsequent manual cleaning of the slag at the exit using angle grinders, files, and pneumatic chisels, reducing labor input and shortening the overall production cycle. According to the required drilling diameter, the distance between the two grinding blocks 656 is adjusted to match the drilling diameter to avoid the laser cutting the grinding blocks 656. The two first pull rods 6514 are pulled to move the second arc-shaped rack 6513 upward, disengaging it from the first arc-shaped rack 6512. The two rotating plates 6511 are rotated to make the rotating disk 655 rotate on the top of the fixed disk 654. The circular shaft 6510 is driven to move through the drive groove 657. The slider 659 moves the grinding blocks 656 and the circular shaft 6510 along the straight groove 658, thereby adjusting the distance between the grinding blocks 656 to accommodate different hole diameters.

[0034] like Figure 7 As shown, a purging assembly 66 is provided on the inner wall of the annular cavity 61. The purging assembly 66 includes a fixing plate 661 that is axially symmetrically fixed to the top of the inner wall of the annular cavity 61 and multiple air distribution ports 665 that are opened at the bottom of the inner wall of the annular cavity 61. A threaded rod 662 is rotatably connected inside the fixing plate 661. An internal threaded plate 663 is threadedly connected to the outer surface of the threaded rod 662. An annular shielding plate 664 is fixedly connected to the bottom of the two internal threaded plates 663.

[0035] The air distribution port 665 is connected to the interior of the annular cavity 61. A soft silicone layer is provided on one side of the annular shielding plate 664. The width of the annular shielding plate 664 is greater than the distance between the two sets of air jet ports 62.

[0036] The slag produced by laser drilling can be collected inside the collection hood 67 by the airflow, but some slag still splashes onto the top of the worktable 5. To clean the slag on the top of the worktable 5, after a fixed cycle of drilling, the threaded rod 662 is rotated, which drives the internal threaded plate 663 to move upward. The two internal threaded plates 663 drive the annular shielding plate 664 to move upward along the inner wall of the annular cavity 61, exposing the air distribution port 665 and shielding the two sets of air jets 62. At this time, the air pump 610 is started, so that the airflow inside the annular cavity 61 is ejected from the air distribution port 665. The air distribution port 665 blows along the surface of the worktable 5, blowing all the slag on the surface of the worktable 5 towards the collection hood 67 for collection, which can reduce the manual cleaning work on the surface of the worktable 5.

[0037] like Figures 8-9 As shown, adaptive clamping components 7 are provided on both sides of the top of the workbench 5. The adaptive clamping components 7 include placement plates 71 fixed on both sides of the top of the workbench 5. Two movable plates 72 are slidably connected inside the placement plates 71. Five straight racks 73 are slidably connected inside each movable plate 72. A clamping plate 74 is hinged to one side of each straight rack 73. A top plate 77 is fixedly connected to the top of one side of the movable plate 72. A second pull rod 79 is slidably connected inside the top plate 77. A fourth spring 78 is sleeved on the outer surface of the second pull rod 79. A fixed rack 76 is fixedly connected to the bottom of the second pull rod 79. A third spring 75 is fixedly connected to one side of the clamping plate 74. One side of the third spring 75 is fixed to the movable plate 72.

[0038] When drilling holes in a steel structure workpiece, it is necessary to first fix it: place the workpiece between two placement plates 71, pull the second pull rod 79 upward to move the fixed rack 76 upward, push the two moving plates 72, and move multiple clamping plates 74 closer to the workpiece until the multiple clamping plates 74 contact the workpiece surface. The multiple clamping plates 74 can fit well with the workpiece surface, and the third spring 75 is compressed to different degrees. At this time, the fixed rack 76 is lowered, so that the fixed rack 76 meshes with multiple straight racks 73, fixing the straight racks 73, thereby effectively fixing the workpiece. This structure is a multi-point elastic support, which can suppress vibration during processing and can adapt to the curvature and contour of the workpiece surface.

[0039] Usage: The adaptive clamping component 7 can adaptively clamp and fix the workpiece to ensure that there is no vibration during the processing of the workpiece; start the air pump 610, and the airflow is ejected at high speed through multiple air jets 62 on the annular cavity 61 to blow away the slag generated by drilling. The blowing airflow carries the slag into the inside of the collection hood 67 for collection. When the airflow passes through the hole, it accelerates the slag from the inside of the hole during drilling. As the laser head 4 descends, it causes the sealing cover 642 to move downwards. The lower edge of the sealing cover 642 moves completely into the interior of the sealing groove 644, forming a sealed space in the processing area, which prevents the escape and diffusion of fumes and improves the cleanliness of the working environment during processing. The drive motor 651 is started to drive the rotating ring 68 to rotate, which in turn drives the fixed disc 654 and multiple grinding blocks 656 to rotate synchronously. The grinding blocks 656 grind and clean the slag at the hole outlet. Rotating the threaded rod 662 causes the internal threaded plate 663 to move upward through the thread. The two internal threaded plates 663 then move the annular shielding plate 664 upward along the inner wall of the annular cavity 61, exposing the air distribution port 665 and shielding the two sets of air jets 62. At this time, the air pump 610 is started, causing the airflow inside the annular cavity 61 to be ejected from the air distribution port 665. The air distribution port 665 blows along the surface of the workbench 5, blowing all the slag on the surface of the workbench 5 towards the collection cover 67 for collection, which can reduce the manual cleaning work on the surface of the workbench 5.

[0040] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concepts, should be covered within the scope of protection of the present invention.

Claims

1. A laser drilling device for steel structure production, comprising a base (1), a machine base (3) fixedly connected to one side of the back of the top of the base (1), a movable arm (2) provided on one side of the machine base (3), a laser head (4) fixedly connected to the bottom of the movable arm (2), and a worktable (5) fixedly connected to the middle of the top of the base (1). characterized in that An air blowing assembly (6) for blowing away slag generated during drilling is provided at the top edge of the workbench (5). The air blowing assembly (6) includes an annular cavity (61) fixed at the top edge of the workbench (5) and a rotating ring (68) rotatably connected to the middle of the workbench (5). Two sets of air jets (62) are opened on the top of the inner surface of the annular cavity (61). Guide pipes (63) are fixedly connected to both sides of the bottom of the annular cavity (61). A collection cover (67) is rotatably connected to the bottom of the rotating ring (68). A high-temperature resistant metal water-cooled baffle and an activated carbon filter element (69) are fixedly connected to the bottom of the collection cover (67). An air pump (610) is fixedly connected to the bottom of the activated carbon filter element (69). The output end of the air pump (610) is connected to the outer surface of the guide pipe (63).

2. The laser drilling device for steel structure production according to claim 1, characterized in that: The top of the annular cavity (61) is provided with a sealing assembly (64) for preventing the escape of flue gas. The sealing assembly (64) includes a sealing groove (644) fixed to the top of the annular cavity (61) and first springs (641) fixed to both sides of the bottom of the movable arm (2). The bottom ends of the two first springs (641) are fixedly connected to a sealing cover (642). The top of the sealing cover (642) is provided with a slot (643).

3. The laser drilling device for steel structure production according to claim 2, characterized in that: The slot (643) is adapted to the laser head (4), and sealing rings are provided on both sides of the inner surface of the sealing groove (644). The sealing groove (644) is adapted to the lower edge of the sealing cover (642).

4. The laser drilling device for steel structure production according to claim 3, characterized in that: The top of the rotating ring (68) is provided with a slag removal assembly (65) for grinding slag. The slag removal assembly (65) includes a fixed disc (654) fixed inside the rotating ring (68), a first arc-shaped rack (6512) symmetrically fixed to the top of the rotating ring (68), and a driving component provided on one side of the top of the base (1). The top of the fixed disc (654) is evenly provided with four straight grooves (658), and a slider (65) is slidably connected inside the straight grooves (658). 9) A round shaft (6510) is fixedly connected to the top of the slider (659), and a grinding block (656) is fixedly connected to the top of the round shaft (6510). An arc-shaped groove (6516) is symmetrically opened on the top of the fixed disc (654). A rotating disc (655) is slidably connected inside the two arc-shaped grooves (6516). Four driving inclined grooves (657) are evenly opened inside the rotating disc (655). Limiting components are provided on both sides of the rotating disc (655).

5. The laser drilling device for steel structure production according to claim 4, characterized in that: The rotating disk (655) is located above the fixed disk (654) and is coaxially arranged. The circular shaft (6510) passes through the interior of the drive inclined groove (657) and is slidably adapted. The gap between the straight groove (658) and the drive inclined groove (657) is filled with high-temperature resistant flexible protective bristles to prevent metal chips from falling into the groove and jamming the slider (659). The bottom of the fixed disk (654) is provided with a support foot, and the support foot is fixed on the inner wall of the rotating ring (68).

6. The laser drilling device for steel structure production according to claim 5, characterized in that: The limiting component includes two first arc-shaped racks (6512) fixed axially symmetrically to the top of the rotating ring (68) and two rotating plates (6511) fixed axially symmetrically to the outer surface of the rotating disk (655). A first pull rod (6514) is slidably connected inside the rotating plate (6511). A second arc-shaped rack (6513) is fixedly connected to the bottom of the first pull rod (6514). A second spring (6515) is sleeved on the outer surface of the first pull rod (6514). The second arc-shaped rack (6513) meshes with the first arc-shaped rack (6512). The second spring (6515) is located between the second arc-shaped rack (6513) and the rotating plate (6511) and is in a compressed state.

7. The laser drilling device for steel structure production according to claim 6, characterized in that: The driving component includes a drive motor (651) fixed on one side of the top of the base (1) and an annular rack (653) fixed at the bottom edge of the rotating ring (68). The output end of the drive motor (651) is fixedly connected to a gear (652), and the gear (652) meshes with the annular rack (653).

8. The laser drilling device for steel structure production according to claim 1, characterized in that: The inner wall of the annular cavity (61) is provided with a purging assembly (66). The purging assembly (66) includes a fixing plate (661) fixed symmetrically on the top of the inner wall of the annular cavity (61) and a plurality of air distribution ports (665) opened at the bottom of the inner wall of the annular cavity (61). The fixing plate (661) is rotatably connected to a threaded rod (662). The outer surface of the threaded rod (662) is threadedly connected to an inner threaded plate (663). The bottom of the two inner threaded plates (663) is fixedly connected to an annular shielding plate (664).

9. A laser drilling device for steel structure production according to claim 8, characterized in that: The air inlet (665) is connected to the interior of the annular cavity (61). A soft silicone layer is provided on one side of the annular shield (664). The width of the annular shield (664) is greater than the distance between the two sets of air inlets (62).

10. A laser drilling device for steel structure production according to claim 9, characterized in that: The workbench (5) is provided with adaptive clamping components (7) on both sides of the top. The adaptive clamping components (7) include placement plates (71) fixed on both sides of the top of the workbench (5). Two moving plates (72) are slidably connected inside the placement plates (71). Five straight racks (73) are slidably connected inside each of the moving plates (72). A clamping plate (74) is hinged to one side of each straight rack (73). A top plate (77) is fixedly connected to the top of one side of each moving plate (72). A second pull rod (79) is slidably connected inside the top plate (77). A fourth spring (78) is sleeved on the outer surface of the second pull rod (79). A fixed rack (76) is fixedly connected to the bottom of the second pull rod (79). A third spring (75) is fixedly connected to one side of the clamping plate (74). One side of the third spring (75) is fixed to the moving plate (72).

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