Laser cutting device for steel

Abstract

This invention relates to the field of laser cutting technology and discloses a laser cutting device for steel, including a machine tool. A cutting distance measuring mechanism is arranged above the machine tool, and a laser cutting mechanism is arranged above the cutting distance measuring mechanism. A slag drop hole is provided on the top of the machine tool, and a slag collection mechanism is arranged below the slag drop hole. In this laser cutting device for steel, eight lifting cylinders drive the second steel support brackets at both ends to lift the steel, facilitating the adjustment of the support spacing between the first steel support brackets. A distance sensor facilitates the adjustment of the spacing parameters. After adjustment, the second steel support brackets descend and are supported by the first steel support brackets. The first cylinder drives the steel clamping plate to extend and retract, facilitating the clamping and limiting of steel of different widths. The slag welded by the laser cutting head falls into the slag drawer through the slag drop hole. A third cylinder drives the slag pusher plate to push inward, facilitating the removal of waste slag.

Description

Technical Field

[0001] This invention relates to the field of laser cutting technology, specifically to a laser cutting device for steel. Background Technology

[0002] A laser cutting machine uses a laser beam emitted from a laser source. The laser beam is focused into a high-power-density laser beam through an optical path system. The laser beam irradiates the surface of the workpiece, causing the workpiece to reach its melting or boiling point. At the same time, high-pressure gas coaxial with the beam blows away the molten or vaporized metal. As the relative position of the beam and the workpiece moves, a kerf is eventually formed in the material, thus achieving the purpose of cutting. Laser cutting is one of the thermal cutting methods and is widely used in the field of steel cutting. It has the characteristics of burr-free cut surface and high precision.

[0003] In existing technologies, such as the Chinese patent CN116765634B entitled "A Laser Cutting Device for Steel," a base is included. A screw fixing mechanism acting on a steel tube is located in the middle of the base. Support seats are symmetrically and vertically arranged on both sides of the base. A middle seat is horizontally arranged at the upper end of the two sets of support seats. Limiting grooves are symmetrically formed on both sides of the upper surface of the middle seat. The laser cutting device for steel described in this invention opens the first control valve on the suction tube, creating a negative pressure at the suction port. This negative pressure acts on the residual molten material after blowing, and in conjunction with the air pressure of the nozzle, increases the force, eliminates dead corners, removes residue, and ensures a clean cutting kerf. Furthermore, it allows the falling molten material and some solidified material to enter the suction tube and then into the waste bin, where they adhere to the dust collection bag for collection, reducing the amount of dust in the workshop and bringing better application prospects.

[0004] However, in the existing technology, although negative pressure is generated at the suction port, this negative pressure acts on the molten material remaining after blowing, and in combination with the air pressure of the nozzle, it increases the force, eliminates dead corners, and removes residues. However, when cutting steel, it is inconvenient to flexibly control the cutting distance, the support is not stable enough, and the collected waste is not easy to clean up, which affects the actual processing effect. Therefore, there is an urgent need for a laser cutting device for steel. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] The purpose of this invention is to provide a laser cutting device for steel, which solves the problems mentioned in the background art, such as the inconvenience in flexibly controlling the cutting spacing, insufficient support, and the inconvenience in collecting and cleaning up waste residue, thus affecting the actual processing effect.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the present invention provides the following technical solution: a laser cutting device for steel, comprising a processing machine tool, a cutting distance measuring mechanism disposed above the processing machine tool, a laser cutting mechanism disposed above the cutting distance measuring mechanism, a slag drop hole disposed at the top of the processing machine tool, a slag collection mechanism disposed below the slag drop hole, and a support bracket disposed at the bottom of the slag collection mechanism;

[0009] The cutting distance measuring mechanism includes a slag drop hole, with first guide rails symmetrically arranged on both sides of the slag drop hole. A first slider is slidably arranged on the top of the first guide rails, and a distance measuring adjustment component is arranged on the top of the first slider. The distance measuring adjustment component includes a first steel bracket, with second steel brackets arranged on both sides of the first steel bracket. A connecting base is arranged at the bottom of the second steel bracket. A lifting slot is symmetrically opened on the top of the connecting base, and a lifting slide plate adapted to the lifting slot is arranged at the bottom of the connecting base. A lifting cylinder is symmetrically arranged at the bottom of the connecting base, and the lifting cylinder is located at the bottom of the second steel bracket. Distance sensors are respectively arranged at the bottom of the first steel bracket and the second steel bracket.

[0010] As a preferred embodiment of the present invention, the laser cutting mechanism includes a mounting bracket, a connecting bracket at the top of the mounting bracket, a first lead screw rotatably connected to the inner wall of the connecting bracket, a first servo motor on one side of the connecting bracket, a lead screw nut movably disposed outside the first lead screw, a slide seat at the bottom of the lead screw nut, a second guide rail at the bottom of the slide seat, a second slider slidably disposed outside the second guide rail, a second cylinder at the bottom of the second slider, and a laser cutting head at the bottom end of the second cylinder.

[0011] As a preferred embodiment of the present invention, the slag collection mechanism includes a slag drawer, a slag outlet is provided on one side of the bottom of the slag drawer, a limiting groove is provided on the side of the slag drawer near the slag outlet, a sealing plate is slidably provided on the inner wall of the limiting groove, a limiting block is symmetrically provided on one side of the slag drawer, the limiting block is slidably provided on one side of the support bracket, and a pull-out lifting ring is provided on the other side of the slag drawer.

[0012] As a preferred embodiment of the present invention, a transmission rack is provided on the side of the first guide rail near the slag drop hole, and the bottom of the first steel bracket and the connecting base are respectively symmetrically provided with shaft holes. A transmission shaft is rotatably provided on the inner wall of the shaft hole. A transmission gear that meshes with the transmission rack is connected to the bottom end of the transmission shaft, and the top end of the transmission shaft is connected and fixed to the drive end of the electric motor by a coupling.

[0013] As a preferred embodiment of the present invention, the slag drawer is symmetrically provided with movable sliding holes, and the inner wall of the slag drawer is slidably provided with a slag pusher plate adapted thereto. The top two sides of the slag pusher plate are symmetrically provided with movable sliders adapted to the movable sliding holes. The other side of the slag drawer is provided with a connecting hole, and the other side of the slag drawer is symmetrically provided with a third cylinder adapted to the connecting hole. One end of the third cylinder is connected and fixed to the slag pusher plate.

[0014] As a preferred embodiment of the present invention, a second lead screw is rotatably connected to the inner wall of the slide base, the second lead screw is movably connected to the second slider, a second servo motor is provided on one side of the slide base, the second servo motor is connected and fixed to one end of the second lead screw through a coupling, and the first servo motor is connected and fixed to one end of the first lead screw through a coupling.

[0015] As a preferred embodiment of the present invention, the tops of the first steel bracket and the second steel bracket are respectively symmetrically provided with fixed support plates, one side of the fixed support plate is connected to one end of the first cylinder, and the other end of the first cylinder is connected to a steel clamping plate.

[0016] As a preferred embodiment of the present invention, reinforcing ribs are respectively provided at the angle between the top two sides of the first steel bracket and the second steel bracket, the first slider is linearly distributed, the first slider is provided at the bottom of the first steel bracket, and the first slider is also provided at the bottom of the connecting base frame.

[0017] As a preferred embodiment of the present invention, the transmission rack is provided with limiting support plates symmetrically on both sides, and the limiting support plates are provided on both sides of the slag drop hole.

[0018] As a preferred embodiment of the present invention, the bottom of the mounting bracket is connected and fixed to the machine tool by fastening bolts.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The steel is cut using a laser cutting device. Eight lifting cylinders drive the second steel brackets at both ends to lift the steel. The lifting slots and lifting slides help improve the stability of the lifting and facilitate adjustment of the support spacing between the first steel brackets, making it easy to cut the steel at intervals. The distance sensor helps to adjust the spacing parameters. After adjustment, the second steel brackets descend and are supported by the first steel brackets. The fixed support plate fixes the first cylinders. The first cylinders drive the steel clamps to extend and retract, which facilitates clamping and limiting steel of different widths.

[0021] 2. The laser cutting device for this steel has a first servo motor that drives the first lead screw to rotate, which facilitates the linear movement of the lead screw nut, and thus facilitates the lateral movement of the laser cutting head. The second servo motor that drives the second lead screw to rotate facilitates the linear movement of the second slider, and thus facilitates the longitudinal movement of the laser cutting head, which allows for the adjustment of the cutting position of the laser cutting head.

[0022] 3. The steel is cut using a laser cutting device. The molten slag from the laser cutting head falls into the molten slag drawer through the molten slag drop hole. When the molten slag drawer is full, the third cylinder drives the molten slag pusher plate to move inward. The molten slag pusher plate is limited by a sliding hole and a sliding block. The molten slag drawer is partially pulled out by a mechanical device and a pull-out lifting ring, releasing the support bracket from the limiting plate. The sealing plate is easily hung on the molten slag drawer through the limiting slot. Pulling out the sealing plate opens the molten slag outlet, making it convenient to receive, transport and clean the molten slag using a trolley tool. After cleaning, the molten slag drawer is pushed back into the support bracket. The limiting block easily limits the molten slag drawer, facilitating the cleaning of waste slag. It is convenient and quick. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of a laser cutting device for steel according to one embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the bottom structure of a laser cutting device for steel according to one embodiment of the present invention;

[0025] Figure 3 This is a partial structural schematic diagram of a laser cutting device for steel according to one embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of the cutting distance measuring mechanism of a laser cutting device for steel according to one embodiment of the present invention;

[0027] Figure 5 This is a schematic diagram of the laser cutting mechanism structure of a laser cutting device for steel in one embodiment of the present invention;

[0028] Figure 6 This is a schematic diagram of the slag collection mechanism of a laser cutting device for steel in one embodiment of the present invention;

[0029] Figure 7 This is a partial exploded structural diagram of the slag collection mechanism of a laser cutting device for steel in one embodiment of the present invention;

[0030] Figure 8 This is a partial structural diagram of the cutting distance measuring mechanism of a laser cutting device for steel according to one embodiment of the present invention;

[0031] Figure 9 This is a partially exploded structural diagram of the cutting distance measuring mechanism of a laser cutting device for steel according to one embodiment of the present invention;

[0032] Figure 10 This is a schematic diagram of the machine tool structure for a laser cutting device for steel in one embodiment of the present invention.

[0033] In the picture:

[0034] 1. Machine tools;

[0035] 2. Cutting and ranging mechanism; 201. First guide rail; 202. First slider; 203. Transmission rack; 204. Limiting support plate; 25. Range measuring adjustment assembly; 251. First steel bracket; 252. Second steel bracket; 253. Reinforcing rib; 254. Connecting base frame; 255. Lifting slot; 256. Lifting slide plate; 257. Rotary shaft hole; 258. Transmission shaft; 259. Transmission gear; 260. Electric motor; 261. Lifting cylinder; 262. Fixed support plate; 263. First cylinder; 264. Steel clamping plate; 265. Distance sensor;

[0036] 3. Laser cutting mechanism; 301. Mounting bracket; 302. Connecting bracket; 303. First lead screw; 304. First servo motor; 305. Lead screw nut; 306. Slide table; 307. Second guide rail; 308. Second slider; 309. Second cylinder; 310. Laser cutting head; 311. Second lead screw; 312. Second servo motor; 313. Fastening bolt;

[0037] 4. Slag falls into the hole;

[0038] 5. Slag collection mechanism; 501. Slag drawer; 502. Slag outlet; 503. Limiting slot; 504. Sealing plate; 505. Moving sliding hole; 506. Slag pusher plate; 507. Moving slider; 508. Connecting hole; 509. Third cylinder; 510. Limiting block; 511. Pull-out lifting ring;

[0039] 6. Support bracket. Detailed Implementation

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0041] Please see Figures 1-10The present invention provides a technical solution: a laser cutting device for steel, including a processing machine tool 1, a cutting distance measuring mechanism 2 is arranged above the processing machine tool 1, a laser cutting mechanism 3 is arranged above the cutting distance measuring mechanism 2, a slag drop hole 4 is arranged at the top of the processing machine tool 1, a slag collection mechanism 5 is arranged below the slag drop hole 4, and a support bracket is arranged at the bottom of the slag collection mechanism 5.

[0042] To facilitate a thorough understanding of the specific structure and principle of the cutting distance measuring mechanism 2 by those skilled in the art, further explanation of the cutting distance measuring mechanism 2 is provided. In this embodiment, the cutting distance measuring mechanism 2 includes a slag drop hole 4, with first guide rails 201 symmetrically arranged on both sides of the slag drop hole 4. A first slider 202 is slidably arranged on the top of the first guide rails 201, and a distance measuring adjustment component 25 is arranged on the top of the first slider 202. The distance measuring adjustment component 25 includes a first steel bracket 251, second steel brackets 252 arranged on both sides of the first steel bracket 251, and a connecting base 254 arranged at the bottom of the second steel brackets 252. The top of the connecting base 254... A lifting slot 255 is symmetrically provided. A lifting slide plate 256, compatible with the lifting slot 255, is provided at the bottom of the connecting base frame 254. Lifting cylinders 261 are symmetrically provided at the bottom of the connecting base frame 254, and are located at the bottom of the second steel bracket 252. Distance sensors 265 are respectively provided at the bottom of the first steel bracket 251 and the second steel bracket 252. A transmission rack 203 is provided on the side of the first guide rail 201 near the slag drop hole 4. The first steel bracket 251 and... The bottom of the connecting base 254 is symmetrically provided with shaft holes 257. A drive shaft 258 is rotatably mounted on the inner wall of the shaft hole 257. The bottom end of the drive shaft 258 is connected to a drive gear 259 that meshes with the drive rack 203. The top end of the drive shaft 258 is connected and fixed to the drive end of the electric motor 260 through a coupling. The top of the first steel bracket 251 and the second steel bracket 252 are symmetrically provided with fixed support plates 262. A first cylinder 26 is connected to one side of the fixed support plate 262. At one end of 3, the other end of the first cylinder 263 is connected to a steel clamp 264. The top two sides of the first steel bracket 251 and the second steel bracket 252 are respectively provided with reinforcing ribs 253. The first slider 202 is linearly distributed and is located at the bottom of the first steel bracket 251. The first slider 202 is also located at the bottom of the connecting base frame 254. The transmission rack 203 is symmetrically provided with limit plates 204 on both sides, and the limit plates 204 are located on both sides of the slag drop hole 4.

[0043] Specifically, the first steel bracket 251 and the second steel bracket 252 facilitate the support of the steel. The electric motor 260 drives the transmission shaft 258 to rotate, which in turn drives the transmission gear 259 to rotate. The transmission gear 259 meshes with the transmission rack 203, facilitating the linear movement of the first steel bracket 251 and the connecting base frame 254. The limiting plate 204 facilitates the limiting of movement. The first steel bracket 251 and the connecting base frame 254, through the first slider 202 and the first guide rail 201, help improve the stability of movement. Eight lifting cylinders 261 drive both ends... The second steel bracket 252 is raised to facilitate the lifting of the steel. The lifting slot 255, together with the lifting slide plate 256, helps to improve the stability of the lifting and facilitates the adjustment of the support spacing between the first steel brackets 251, which is convenient for the steel to be cut at intervals. The distance sensor 265 facilitates the adjustment of the spacing parameters. After adjustment, the second steel bracket 252 is lowered and supported by the first steel bracket 251. The fixed support plate 262 fixes the first cylinder 263. The first cylinder 263 drives the steel clamping plate 264 to extend and retract, which is convenient for clamping and limiting steel of different widths.

[0044] To facilitate a thorough understanding of the specific structure and principle of the laser cutting mechanism 3 by those skilled in the art, further explanation of the laser cutting mechanism 3 is provided. In this embodiment, the laser cutting mechanism 3 includes a mounting bracket 301, a connecting bracket 302 is provided on the top of the mounting bracket 301, a first lead screw 303 is rotatably connected to the inner wall of the connecting bracket 302, a first servo motor 304 is provided on one side of the connecting bracket 302, a lead screw nut 305 is movably provided on the outside of the first lead screw 303, a slide base 306 is provided at the bottom of the lead screw nut 305, a second guide rail 307 is provided at the bottom of the slide base 306, a second slider 308 is slidably provided on the outside of the second guide rail 307, and a bottom of the second slider 308 is provided with... The second cylinder 309 has a laser cutting head 310 at its bottom. The inner wall of the slide base 306 is rotatably connected to the second lead screw 311, which is movably connected to the second slider 308. A second servo motor 312 is provided on one side of the slide base 306. The second servo motor 312 is connected and fixed to one end of the second lead screw 311 by a coupling. The first servo motor 304 is connected and fixed to one end of the first lead screw 303 by a coupling. The bottom of the mounting bracket 301 is connected and fixed to the processing machine tool 1 by fastening bolts 313.

[0045] Specifically, the mounting bracket 301 is fixed to the machine tool 1 by fastening bolts 313, which facilitates the support of the connecting bracket 302. The first servo motor 304 drives the first lead screw 303 to rotate, which facilitates the linear movement of the lead screw nut 305, and thus facilitates the lateral movement of the laser cutting head 310. The lead screw nut 305 is connected to the slide table 306. The second servo motor 312 drives the second lead screw 311 to rotate, which facilitates the linear movement of the second slider 308, and thus facilitates the longitudinal movement of the laser cutting head 310, which facilitates the adjustment of the cutting position of the laser cutting head 310.

[0046] To facilitate a thorough understanding of the specific structure and principle of the slag collection mechanism 5 by those skilled in the art, further explanation is provided for the slag collection mechanism 5. In this embodiment, the slag collection mechanism 5 includes a slag drawer 501. A slag outlet 502 is provided on one side of the bottom of the slag drawer 501. A limiting groove 503 is provided on the side of the slag drawer 501 near the slag outlet 502. A sealing plate 504 adapted to the limiting groove 503 is slidably provided on the inner wall of the limiting groove 503. Limiting blocks 510 are symmetrically provided on one side of the slag drawer 501. The limiting blocks 510 are slidably provided on one side of the support bracket. A pull-out lifting ring 5 is provided on the other side of the slag drawer 501. 11. A sliding hole 505 is symmetrically arranged on the slag drawer 501. A slag pusher plate 506 adapted to the slag drawer 501 is slidably arranged on the inner wall of the slag drawer 501. A sliding block 507 adapted to the sliding hole 505 is symmetrically arranged on both sides of the top of the slag pusher plate 506. A connecting hole 508 is arranged on the other side of the slag drawer 501. A third cylinder 509 adapted to the connecting hole 508 is symmetrically arranged on the other side of the slag drawer 501. One end of the third cylinder 509 is connected and fixed to the slag pusher plate 506.

[0047] Specifically, the slag welded by the laser cutting head 310 falls into the slag drawer 501 through the slag drop hole 4. When the slag drawer 501 is full, the third cylinder 509 drives the slag pusher 506 to push inward. The slag pusher 506 is limited by the sliding hole 505 and the sliding block 507. The slag drawer 501 is partially pulled out by the mechanical equipment and the pull-out ring 511, releasing the support bracket from the limitation of the sealing plate 504. The sealing plate 504 is easily hung on the slag drawer 501 through the limiting slot 503. Pulling out the sealing plate 504 makes it easy to open the slag outlet 502, which is convenient for receiving, transporting and cleaning the slag with a trolley tool. After cleaning, the slag drawer 501 is pushed into the support bracket. The limiting block 510 makes it easy to limit the slag drawer 501, which is convenient for cleaning the waste residue. It is convenient and quick.

[0048] Working principle: Firstly, the first steel bracket 251 and the second steel bracket 252 facilitate the support of the steel. The electric motor 260 drives the transmission shaft 258 to rotate, which in turn drives the transmission gear 259. The transmission gear 259 meshes with the transmission rack 203, facilitating linear movement of the first steel bracket 251 and the connecting base 254. The limiting plate 204 limits the movement. The first steel bracket 251 and the connecting base 254, through the first slider 202 and the first guide rail 201, help improve the stability of the movement. Eight lifting cylinders 261 drive the two... The second steel bracket 252 of the head is raised to facilitate the lifting of the steel. The lifting slot 255, together with the lifting slide plate 256, helps to improve the stability of the lifting and makes it easy to adjust the support spacing between the first steel brackets 251, which is convenient for the steel to be cut at intervals. The distance sensor 265 facilitates the adjustment of the spacing parameters. After adjustment, the second steel bracket 252 is lowered and supported by the first steel bracket 251. The fixed support plate 262 fixes the first cylinder 263. The first cylinder 263 drives the steel clamp 264 to extend and retract, which is convenient for clamping and limiting steel of different widths.

[0049] Mounting bracket 301 is fixed to the machine tool 1 by fastening bolts 313, facilitating support for connecting bracket 302. First servo motor 304 drives first lead screw 303 to rotate, facilitating linear movement of lead screw nut 305, and thus facilitating lateral movement of laser cutting head 310. Lead screw nut 305 is connected to slide table 306. Second servo motor 312 drives second lead screw 311 to rotate, facilitating linear movement of second slider 308, and thus facilitating longitudinal movement of laser cutting head 310, allowing for adjustment of the cutting position. Molten slag from welding laser cutting head 310 falls into slag drawer 501 through slag drop hole 4. When full, the third cylinder 509 drives the slag pusher 506 to push inward. The slag pusher 506 is limited by the movable sliding hole 505 and the movable slider 507. The slag drawer 501 is partially pulled out by the mechanical equipment and the pull-out lifting ring 511, releasing the support bracket from the limitation of the sealing plate 504. The sealing plate 504 is easily hung on the slag drawer 501 through the limiting slot 503. Pulling out the sealing plate 504 makes it easy to open the slag outlet 502, which is convenient for receiving, transporting and cleaning the slag with a trolley tool. After cleaning, the slag drawer 501 is pushed into the support bracket. The limiting block 510 makes it easy to limit the slag drawer 501, which is convenient for cleaning waste slag. It is convenient and quick.

[0050] Finally, it should be noted that the above content is only used to illustrate the technical solution of the present invention, and is not intended to limit the scope of protection of the present invention. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of the present invention do not depart from the essence and scope of the technical solution of the present invention.

Claims

1. A laser cutting device for steel, characterized in that: The machine tool (1) is provided with a cutting distance measuring mechanism (2) above it, a laser cutting mechanism (3) above it, a slag drop hole (4) at the top of the machine tool (1), a slag collection mechanism (5) below the slag drop hole (4), and a support bracket at the bottom of the slag collection mechanism (5). The slag drop hole (4) is symmetrically provided with first guide rails (201) on both sides. A first slider (202) is slidably provided on the top of the first guide rail (201). A distance measuring adjustment component (25) is provided on the top of the first slider (202). The distance measuring adjustment component (25) includes a first steel bracket (251). A second steel bracket (252) is provided on both sides of the first steel bracket (251). A connecting base frame (254) is provided at the bottom of the second steel bracket (252). The top of the connecting base frame (254) is symmetrically provided with lifting slots (255), and the bottom of the second steel bracket (252) is provided with a lifting slide plate (256) that is compatible with the lifting slots (255). The bottom of the connecting base frame (254) is symmetrically provided with lifting cylinders (261), and the lifting cylinders (261) are located at the bottom of the second steel bracket (252). The bottoms of the first steel bracket (251) and the second steel bracket (252) are respectively provided with distance sensors (265). The laser cutting mechanism (3) includes a mounting bracket (301), a connecting bracket (302) is provided on the top of the mounting bracket (301), a first lead screw (303) is rotatably connected to the inner wall of the connecting bracket (302), a first servo motor (304) is provided on one side of the connecting bracket (302), a lead screw nut (305) is movably provided on the outside of the first lead screw (303), a slide table (306) is provided at the bottom of the lead screw nut (305), a second guide rail (307) is provided at the bottom of the slide table (306), a second slider (308) is slidably provided on the outside of the second guide rail (307), a second cylinder (309) is provided at the bottom of the second slider (308), and a laser cutting head (310) is provided at the bottom end of the second cylinder (309).

2. The laser cutting device for steel according to claim 1, characterized in that: The slag collection mechanism (5) includes a slag drawer (501), a slag outlet (502) is provided on one side of the bottom of the slag drawer (501), a limiting slot (503) is provided on the side of the slag drawer (501) near the slag outlet (502), a sealing plate (504) is slidably provided on the inner wall of the limiting slot (503), a limiting block (510) is symmetrically provided on one side of the slag drawer (501), the limiting block (510) is slidably provided on one side of the support bracket, and a pull-out lifting ring (511) is provided on the other side of the slag drawer (501).

3. The laser cutting device for steel according to claim 1, characterized in that: The first guide rail (201) is provided with a transmission rack (203) on the side near the slag drop hole (4). The bottom of the first steel bracket (251) and the connecting base (254) are respectively provided with symmetrical shaft holes (257). The inner wall of the shaft hole (257) is provided with a transmission shaft (258). The bottom end of the transmission shaft (258) is connected to a transmission gear (259) that meshes with the transmission rack (203). The top end of the transmission shaft (258) is connected and fixed to the drive end of the electric motor (260) by a coupling.

4. The laser cutting device for steel according to claim 2, characterized in that: The slag drawer (501) is symmetrically provided with sliding holes (505), and the inner wall of the slag drawer (501) is slidably provided with a slag pusher plate (506) adapted to it. The top two sides of the slag pusher plate (506) are symmetrically provided with sliding blocks (507) adapted to the sliding holes (505). The other side of the slag drawer (501) is provided with a connecting hole (508), and the other side of the slag drawer (501) is symmetrically provided with a third cylinder (509) adapted to the connecting hole (508). One end of the third cylinder (509) is connected and fixed to the slag pusher plate (506).

5. The laser cutting device for steel according to claim 1, characterized in that: The inner wall of the slide base (306) is rotatably connected to a second lead screw (311), and the second lead screw (311) is movably connected to a second slider (308). A second servo motor (312) is provided on one side of the slide base (306). The second servo motor (312) is connected and fixed to one end of the second lead screw (311) by a coupling. The first servo motor (304) is connected and fixed to one end of the first lead screw (303) by a coupling.

6. The laser cutting device for steel according to claim 1, characterized in that: The top of the first steel bracket (251) and the second steel bracket (252) are respectively symmetrically provided with fixed support plates (262). One side of the fixed support plate (262) is connected to one end of the first cylinder (263), and the other end of the first cylinder (263) is connected to the steel clamp plate (264).

7. The laser cutting device for steel according to claim 1, characterized in that: The first steel bracket (251) and the second steel bracket (252) are respectively provided with reinforcing ribs (253) at the angle between the top two sides. The first slider (202) is linearly distributed. The first slider (202) is located at the bottom of the first steel bracket (251). The first slider (202) is also located at the bottom of the connecting base frame (254).

8. The laser cutting device for steel according to claim 3, characterized in that: The transmission rack (203) is symmetrically provided with limiting support plates (204) on both sides, and the limiting support plates (204) are provided on both sides of the slag drop hole (4).

9. The laser cutting device for steel according to claim 1, characterized in that: The bottom of the mounting bracket (301) is connected and fixed to the machine tool (1) by fastening bolts (313).

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