Single-table-board laser cutting machine capable of reducing laser radiation and working method

Abstract

The invention discloses a single-table-board laser cutting machine capable of reducing laser radiation and a working method, and belongs to the technical field of laser cutting machines. The single-table-board laser cutting machine capable of reducing laser radiation comprises a laser cutting machine fixing base, an automatic switch cover is arranged at the upper end of a low workbench, and a laser radiation sensor is further arranged on the low workbench. The problems that an existing laser cutter is not provided with a protection structure, and the safety of the working environment cannot be guaranteed are solved, the small laser cutting box is further arranged on the moving base on the low workbench, secondary finish machining of small workpieces or pipes is achieved, the machining range of equipment is expanded, and the machining efficiency is improved. The laser radiation sensor and the plc module are in linkage to control the electric air cylinder, radiation abnormity automatic protection is achieved, manual intervention is not needed, the response time is millisecond, the protection frame is matched with the anti-radiation protection door and the automatic opening and closing cover, the laser safety standard is met, equipment maintenance and process optimization are facilitated, and the safety of the working environment is improved.

Description

Technical Field

[0001] This invention relates to the field of laser cutting machine technology, specifically to a single-table laser cutting machine and its working method that reduces laser radiation. Background Technology

[0002] A laser cutting machine focuses a laser beam emitted from a laser source into a high-power-density 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. Simultaneously, high-pressure gas coaxial with the beam blows away the molten or vaporized metal.

[0003] Chinese Patent CN213998257U discloses a laser cutting machine, including a storage cabinet at the lower end of the machine and a control panel above the cabinet. A laser cutting chamber is located on one side of the control panel, and a steel plate to be cut is placed inside the chamber. Clamping devices are located at both ends of the steel plate. This patent utilizes clamping devices to simultaneously fix the position of the clamps while holding the steel plate, facilitating clamp movement and simplifying locking.

[0004] The laser cutter described in the above patent has a simple structure and lacks protective features, making it impossible to guarantee the safety of the working environment. Therefore, it cannot meet current needs. In response, we have proposed a single-table laser cutter and its working method that reduces laser radiation. Summary of the Invention

[0005] The purpose of this invention is to provide a single-table laser cutting machine and its working method that reduces laser radiation, thereby solving the problem mentioned in the background art that the laser cutter has a simple structure, lacks a protective structure, and cannot guarantee the safety of the working environment during actual use.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a single-table laser cutting machine for reducing laser radiation, comprising a laser cutting machine base, an anti-slip table surface provided on one side of the laser cutting machine base, a protective frame fixedly connected to the outside of the anti-slip table surface, and a radiation protection door provided outside the protective frame;

[0007] A low worktable is installed on the other side of the laser cutting machine mounting base. An automatic switch cover is provided on the upper end of the low worktable. The automatic switch cover is hinged to the laser cutting machine mounting base via an electric cylinder. A laser radiation sensor is also provided on the low worktable. The laser radiation sensor is electrically connected to the electric cylinder via a PLC module.

[0008] Preferably, the laser cutting machine mounting base and the anti-slip table are configured as a quick-release structure via a snap fastener, and the protective frame is fixedly connected to the laser cutting machine mounting base and the anti-slip table.

[0009] Preferably, the radiation protection door is embedded in the inner wall of the protective frame and fits into the protective frame. The radiation protection door adopts a double-layer laser protection layer of carbon fiber and aluminum film. The automatic switch cover adopts a frame structure of plasticized polyvinyl chloride material. Both the automatic switch cover and the radiation protection door are used to absorb laser energy.

[0010] Preferably, the upper end of the laser cutting machine base is provided with a linear guide rail, and the movable cantilever is slidably connected to the laser cutting machine base via the linear guide rail. A gear motor is installed on one side of the movable cantilever, and the output shaft of the gear motor drives the gear to move the movable cantilever on the laser cutting machine base. A cutting box is slidably connected to the surface of the movable cantilever, and the position of the cutting box is electrically adjusted on the movable cantilever via an electric lead screw. The gear motor drives the movable cantilever to move along the linear guide rail in the X-axis direction, and the cutting box moves along the movable cantilever in the Y-axis direction via an electric lead screw. An electric cylinder is provided inside the cutting box, and a laser cutting head is installed at the bottom of the electric cylinder. The electric cylinder drives the laser cutting head to rise and fall in the Z-axis direction to complete the focus position adjustment, the laser emits light, and cuts according to a preset trajectory.

[0011] Preferably, the anti-slip surface has several retainers running through it, and each retainer has several top rods arranged at equal intervals. Spray holes are provided on both sides of each top rod, and a cooling water pipe is provided inside the retainer, and the cooling water pipe is connected to a water pump.

[0012] Preferably, the automatic switch cover is provided with an integrally formed side protective plate, which is movably connected to the laser cutting machine base via a hinge. A load-bearing plate is provided on the low worktable, and a feeding slide is installed on one side of the load-bearing plate. The load-bearing plate is designed to be detachable.

[0013] Preferably, the movable base is slidably connected to the low worktable via guide rails, and a small laser cutting box is installed on the movable base. The small laser cutting box moves laterally on the movable base via an electric lead screw, thereby realizing secondary precision processing of small workpieces or pipes and expanding the processing range of the equipment.

[0014] The operating method of a single-face laser cutting machine to reduce laser radiation includes the following steps:

[0015] Step 1: The operator places the board to be cut on the non-slip table. The retainer and its top rod on the table provide multi-point support for the board to prevent it from shifting during the cutting process.

[0016] Step 2: Close the radiation protection door, allowing it to fit into the inner wall of the protective frame to form a tight seal;

[0017] Step 3: Depending on the usage requirements, for small workpieces and pipes, auxiliary processing and trimming can be carried out through the movable seat on the low worktable and the small laser cutting box. Place the material on the low worktable, and use the laser radiation sensor to detect whether the radiation protection door is closed properly. The laser radiation sensor on the low worktable detects the background radiation of the environment and records the initial value. The automatic switch cover closes under the drive of the electric cylinder, forming a closed cutting cavity together with the protective frame and the radiation protection door.

[0018] Step 4: When cutting on the anti-slip table, the moving arm is driven by the gear motor to move along the linear guide rail in the X-axis direction, the cutting box is moved along the moving arm in the Y-axis direction by the electric screw, and the electric cylinder drives the laser cutting head to rise and fall in the Z-axis direction to complete the focus position adjustment, the laser emits light, and the cutting is carried out according to the preset trajectory.

[0019] Step 5: The laser radiation sensor transmits the monitoring data to the PLC module in real time. When the laser radiation sensor detects that the reflected radiation intensity exceeds the set threshold, the PLC module automatically adjusts the power or cutting speed of the small laser cutting box. If the radiation intensity continues to rise to the dangerous threshold, the PLC module immediately cuts off the laser output and controls the electric cylinder to drive the automatic switch cover to open automatically for pressure relief and heat dissipation.

[0020] Step Six: After cutting is completed, the laser cutting head stops emitting light. Cooling water is introduced through a water pump to cool the material and the laser cutting head. The load-bearing plate can be removed and replaced. Cutting waste slides down the unloading slide to the collection area.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] 1. This invention forms an independent auxiliary processing area by installing an automatic switching cover outside the low worktable. While the main cutting area is working, the auxiliary area can simultaneously load and unload materials, improving production efficiency. In addition, a small laser cutting box is also set on the movable seat on the low worktable to realize secondary precision processing of small workpieces or pipes, expanding the processing range of the equipment. The laser radiation sensor and PLC module are linked to control the electric cylinder to realize automatic protection against radiation abnormalities without manual intervention. The response time is in the millisecond range. With the protective frame combined with the radiation protection door and the automatic switching cover, it meets laser safety standards, facilitates equipment maintenance and process optimization, and improves the safety of the working environment.

[0023] 2. This invention replaces traditional metal reflective protection with a radiation-proof door made of carbon fiber and an automatic opening and closing cover made of plasticized polyvinyl chloride material, completely eliminating secondary radiation sources. A laser radiation sensor monitors the intensity of reflected radiation in real time, and automatically cuts off the laser if it exceeds the limit to ensure safety control. In addition, the cooling water circuit is integrated through the retainer and top rod inside the anti-slip table. After processing, cooling water is introduced by a water pump to achieve simultaneous cooling during cutting, reduce thermal deformation, improve work efficiency, and facilitate continuous work. Attached Figure Description

[0024] Figure 1 This is an isometric view of the front view of the present invention;

[0025] Figure 2 This is an isometric view of the side view of the present invention;

[0026] Figure 3 For the present invention Figure 2 Enlarged view of a portion of area A in the middle;

[0027] Figure 4 This is an axonometric view of the rear view of the present invention;

[0028] Figure 5 For the present invention Figure 4 Enlarged view of a section in area B;

[0029] Figure 6 This is a top-view isometric view of the present invention.

[0030] In the diagram: 1. Laser cutting machine base; 101. Protective frame; 102. Radiation protection door; 103. Linear guide rail; 2. Anti-slip table; 201. Holder; 202. Top rod; 203. Buckle; 3. Moving cantilever; 301. Cutting box; 302. Laser cutting head; 303. Electric cylinder; 304. Gear motor; 4. Automatic switch cover; 401. Side protective plate; 5. Low worktable; 501. Load-bearing plate; 502. Laser radiation sensor; 503. Unloading slide plate; 6. Moving base; 601. Small laser cutting box. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Example 1:

[0033] To address the issues of existing laser cutters being functionally limited, lacking protective structures, and hindering continuous operation, please refer to [the relevant documentation / reference]. Figure 1 - Figure 6 This embodiment provides the following technical solution:

[0034] The single-table laser cutting machine for reducing laser radiation in this embodiment includes a laser cutting machine base 1, an anti-slip table 2 on one side of the laser cutting machine base 1, a protective frame 101 fixedly connected to the outside of the anti-slip table 2, a retainer 201 and its top rod 202 on the table to provide multi-point support for the plate and prevent the plate from shifting during the cutting process, and a radiation protection door 102 is provided outside the protective frame 101.

[0035] The laser cutting machine mounting base 1 and the anti-slip table 2 are configured as a quick-release structure via a snap fastener 203, and the protective frame 101 is fixedly connected to the laser cutting machine mounting base 1 and the anti-slip table 2.

[0036] It should be noted that the radiation protection door 102 is embedded in the inner wall of the protective frame 101 and fits into the protective frame 101. The radiation protection door 102 adopts a double-layer laser protection layer of carbon fiber and aluminum film, which attenuates laser energy by absorption rather than reflection, thus eliminating the risk of secondary radiation from the source.

[0037] A linear guide rail 103 is provided at the upper end of the laser cutting machine base 1. The movable cantilever 3 is slidably connected to the laser cutting machine base 1 via the linear guide rail 103. A gear motor 304 is installed on one side of the movable cantilever 3. The output shaft of the gear motor 304 drives the gear to move the movable cantilever 3 on the laser cutting machine base 1. A cutting box 301 is slidably connected to the surface of the movable cantilever 3. The cutting box 301 is electrically adjusted on the movable cantilever 3 via an electric screw. The gear motor 304 drives the movable cantilever 3 to move along the linear guide rail 103 in the X-axis direction. The cutting box 301 is moved along the movable cantilever 3 in the Y-axis direction via an electric screw. An electric cylinder 303 is provided inside the cutting box 301. A laser cutting head 302 is installed at the bottom of the electric cylinder 303. The electric cylinder 303 drives the laser cutting head 302 to rise and fall along the Z-axis direction to complete the focus position adjustment, the laser emits light, and cuts according to the preset trajectory.

[0038] In fact, several retainers 201 are inserted through the anti-slip table 2. Several push rods 202 are arranged at equal intervals on each retainer 201. Spray holes are provided on both sides of the push rods 202. Cooling water pipes are installed inside the retainers 201 and connected to water pumps. The cooling water circuit is integrated through the retainers 201 and push rods 202 inside the anti-slip table 2. After processing, cooling water is introduced by water pump to achieve simultaneous cooling during cutting, reduce thermal deformation, improve working efficiency, and facilitate continuous work.

[0039] Combination Figure 1 - Figure 6 The working method of a single-face laser cutting machine to reduce laser radiation includes the following steps:

[0040] Step 1: The operator places the board to be cut on the non-slip table 2. The retainer 201 and its top rod 202 on the table provide multi-point support for the board to prevent it from shifting during the cutting process.

[0041] Step 2: Close the radiation protection door 102, so that it is embedded in the inner wall of the protective frame 101 to form a tight seal;

[0042] Step 3: When cutting on the anti-slip table 2, the gear motor 304 drives the movable cantilever 3 to move along the linear guide rail 103 in the X-axis direction, the cutting box 301 moves along the Y-axis direction on the movable cantilever 3 via the electric lead screw, and the electric cylinder 303 drives the laser cutting head 302 to rise and fall along the Z-axis direction to complete the focus position adjustment, the laser emits light, and the cutting is carried out according to the preset trajectory;

[0043] Step 4: After the cutting is completed, the laser cutting head 302 stops emitting light, and cooling water is introduced through a water pump to cool the material and the laser cutting head 302.

[0044] Specifically, the protective frame 101, combined with the radiation protection door 102 and the automatic opening and closing cover 4, meets laser safety standards, facilitates equipment maintenance and process optimization, and improves the safety of the working environment. The radiation protection door 102, made of carbon fiber, replaces the traditional metal reflective protection, completely eliminating secondary radiation sources. In addition, the cooling water circuit is integrated through the retainer 201 and the top rod 202 inside the anti-slip table 2. After processing, cooling water is introduced by a water pump to achieve simultaneous cooling during cutting, reduce thermal deformation, improve working efficiency, and facilitate continuous work.

[0045] Example 2:

[0046] To address the issues of existing laser cutters having a simple structure, lacking protective features, and failing to guarantee a safe working environment, please refer to [the relevant documentation / reference]. Figure 1 - Figure 6 This embodiment provides the following technical solution:

[0047] In this embodiment, the single-table laser cutting machine with reduced laser radiation includes a laser cutting machine base 1. A low worktable 5 is installed on the other side of the laser cutting machine base 1. An automatic switch cover 4 is provided on the upper end of the low worktable 5. The automatic switch cover 4 is connected to the laser cutting machine base 1 by an electric cylinder. A laser radiation sensor 502 is also provided on the low worktable 5. The laser radiation sensor 502 is electrically connected to the electric cylinder through a PLC module. The laser radiation sensor 502 is an Ophir Helios Pro series 7Z07143 laser power meter sensor with a diffuser and a range of 12kW. It communicates with the PLC module and has a good shielding structure installed outside the laser radiation sensor 502.

[0048] As the control core, the PLC module needs to process the input of the laser radiation sensor 502 and the output of the electric cylinder at the same time. The laser radiation sensor (502) is connected to the PLC module through the digital input module to monitor the intensity of reflected radiation in the cavity in real time. The electric cylinder is connected to the PLC module through the DO module, intermediate relay and solenoid valve through the digital output signal, which can drive the automatic switch cover 4 to open and close.

[0049] The signal line of the laser radiation sensor 502 is connected in NPN mode. An alarm threshold is preset on the laser radiation sensor 502 body, the range is configured in the PLC module, and the sampling period is set to 100-200ms to balance real-time performance and stability.

[0050] The PLC module uses an intermediate relay to isolate the solenoid valve, completing the electrical connection of the laser radiation sensor 502, the PLC module, the relay, and the solenoid valve. It is configured with digital input module range and DO address allocation to realize threshold judgment, cylinder drive, timeout alarm, and safety interlock, achieving automatic protection against radiation anomalies without manual intervention and with a response time in milliseconds.

[0051] The automatic switch cover 4 is a frame structure made of plasticized polyvinyl chloride material. Both the automatic switch cover 4 and the radiation protection door 102 are used to absorb laser energy.

[0052] Furthermore, an integrally formed side protective plate 401 is provided outside the automatic switch cover 4. The side protective plate 401 is movably connected to the laser cutting machine fixed base 1 via a hinge. A load-bearing plate 501 is provided on the low worktable 5. A material unloading slide plate 503 is installed on one side of the load-bearing plate 501. The load-bearing plate 501 is designed as a detachable structure, so that cutting waste can be quickly cleaned up, reducing downtime.

[0053] In addition, the movable seat 6 is slidably connected to the low worktable 5 via guide rails. A small laser cutting box 601 is installed on the movable seat 6. The small laser cutting box 601 moves laterally on the movable seat 6 via an electric lead screw to realize secondary precision processing of small workpieces or pipes, thus expanding the processing range of the equipment.

[0054] In this embodiment, the operating method of the single-face laser cutting machine that reduces laser radiation includes the following steps:

[0055] Step 1: According to the usage requirements, for small workpieces and pipes, auxiliary processing and trimming can be carried out through the movable seat 6 on the low worktable 5 and the small laser cutting box 601. The material is placed on the low worktable 5, and the laser radiation sensor 502 detects whether the radiation protection door 102 is closed in place. The laser radiation sensor 502 on the low worktable 5 detects the background radiation of the environment and records the initial value. The automatic switch cover 4 is closed under the drive of the electric cylinder, forming a closed cutting cavity together with the protective frame 101 and the radiation protection door 102.

[0056] Step 2: The laser radiation sensor 502 transmits the monitoring data to the PLC module in real time. When the laser radiation sensor 502 detects that the reflected radiation intensity exceeds the set threshold, the PLC module automatically adjusts the power or cutting speed of the small laser cutting box 601. If the radiation intensity continues to rise to the dangerous threshold, the PLC module immediately cuts off the laser output and controls the electric cylinder to drive the automatic switch cover 4 to open automatically for pressure relief and heat dissipation.

[0057] Step 3: The load-bearing plate 501 can be removed and replaced, and the cutting waste slides down to the collection area via the unloading slide plate 503.

[0058] Specifically, by installing an automatic switch cover 4 outside the low worktable 5, an independent auxiliary processing area is formed. When the main cutting area is working, the auxiliary area can simultaneously load and unload materials, improving production efficiency. In addition, a small laser cutting box 601 is also set on the movable seat 6 on the low worktable 5 to realize secondary precision processing of small workpieces or pipes, expanding the processing range of the equipment. The laser radiation sensor 502 is linked with the PLC module to control the electric cylinder, realizing automatic protection against radiation anomalies without manual intervention, with a response time in milliseconds. The radiation protection door 102 composed of carbon fiber and the automatic switch cover 4 made of plasticized polyvinyl chloride material replace the traditional metal reflective protection, completely eliminating secondary radiation sources. The laser radiation sensor 502 monitors the intensity of reflected radiation in real time, and automatically cuts off the laser once it exceeds the standard to ensure safety control.

[0059] Working Principle: During use, the operator places the material to be cut on the anti-slip table 2. The retainer 201 and its top rod 202 on the table provide multi-point support for the material, preventing it from shifting during cutting. The radiation protection door 102 is closed, allowing it to be embedded in the inner wall of the protective frame 101 to form a sealed fit. When cutting on the anti-slip table 2, the gear motor 304 drives the moving cantilever 3 to move along the linear guide rail 103 in the X-axis direction. The cutting box 301 moves along the moving cantilever 3 in the Y-axis direction via an electric lead screw. The electric cylinder 303 drives the laser cutting head 302 to rise and fall in the Z-axis direction, completing the focus position adjustment. The laser emits light and cuts according to the preset trajectory. After cutting, the laser cutting head 302 stops emitting light, and cooling water is introduced by a water pump to cool the material and the laser cutting head 302. Depending on the usage requirements, for small workpieces and pipes, a moving seat 6 on the low worktable 5 and a small laser cutting head can be used. The cutting box 601 performs auxiliary processing and trimming. The material is placed on the low worktable 5. The laser radiation sensor 502 detects whether the radiation protection door 102 is closed properly. The laser radiation sensor 502 on the low worktable 5 detects the background radiation of the environment and records the initial value. The automatic switch cover 4 is closed under the drive of the electric cylinder, forming a closed cutting cavity together with the protective frame 101 and the radiation protection door 102. The laser radiation sensor 502 transmits the monitoring data to the PLC module in real time. When the laser radiation sensor 502 detects that the reflected radiation intensity exceeds the set threshold, the PLC module automatically adjusts the power or cutting speed of the small laser cutting box 601. If the radiation intensity continues to rise to the dangerous threshold, the PLC module immediately cuts off the laser output and controls the electric cylinder to drive the automatic switch cover 4 to open automatically for pressure relief and heat dissipation. The load-bearing plate 501 is removable and replaceable. Cutting waste slides down to the collection area via the unloading slide plate 503.

[0060] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0061] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention.

Claims

1. A single-table laser cutting machine for reducing laser radiation, comprising a laser cutting machine mounting base (1), characterized in that, The laser cutting machine mounting base (1) has an anti-slip table (2) on one side, and a protective frame (101) is fixedly connected to the outside of the anti-slip table (2). A radiation protection door (102) is provided outside the protective frame (101). A low worktable (5) is installed on the other side of the laser cutting machine mounting base (1). An automatic switch cover (4) is provided at the upper end of the low worktable (5). The automatic switch cover (4) is hinged to the laser cutting machine mounting base (1) through an electric cylinder. A laser radiation sensor (502) is also provided on the low worktable (5). The laser radiation sensor (502) is electrically connected to the electric cylinder through a PLC module.

2. The single-table laser cutting machine for reducing laser radiation according to claim 1, characterized in that, The laser cutting machine mounting base (1) and the anti-slip table (2) are configured as a quick-release structure by means of a buckle (203), and the protective frame (101) is fixedly connected to the laser cutting machine mounting base (1) and the anti-slip table (2).

3. The single-table laser cutting machine for reducing laser radiation according to claim 2, characterized in that, The radiation protection door (102) is embedded in the inner wall of the protective frame (101) and fits into the protective frame (101). The radiation protection door (102) adopts a double-layer laser protection layer with carbon fiber and aluminum film attached. The automatic switch cover (4) adopts a frame structure of plasticized polyvinyl chloride material. Both the automatic switch cover (4) and the radiation protection door (102) are used to absorb laser energy.

4. The single-table laser cutting machine for reducing laser radiation according to claim 1, characterized in that, The upper end of the laser cutting machine mounting base (1) is provided with a linear guide rail (103). The movable cantilever (3) is slidably connected to the laser cutting machine mounting base (1) through the linear guide rail (103). A gear motor (304) is installed on one side of the movable cantilever (3). The output shaft of the gear motor (304) drives the gear to move the movable cantilever (3) on the laser cutting machine mounting base (1).

5. The single-table laser cutting machine for reducing laser radiation according to claim 4, characterized in that, The anti-slip tabletop (2) has several retainers (201) running through it. Each retainer (201) has several top rods (202) arranged at equal intervals. Spray holes are provided on both sides of the top rods (202). A cooling water pipe is provided inside the retainer (201), and the cooling water pipe is connected to a water pump.

6. The single-table laser cutting machine for reducing laser radiation according to claim 5, characterized in that, The cutting box (301) is slidably connected to the surface of the movable cantilever (3). The cutting box (301) is electrically adjusted on the movable cantilever (3) by an electric screw. An electric cylinder (303) is provided inside the cutting box (301). A laser cutting head (302) is installed at the bottom of the electric cylinder (303).

7. The single-table laser cutting machine for reducing laser radiation according to claim 6, characterized in that, An integrally formed side protective plate (401) is provided outside the automatic switch cover (4). The side protective plate (401) is movably connected to the laser cutting machine base (1) via a hinge. A load-bearing plate (501) is provided on the low worktable (5). A feeding slide plate (503) is installed on one side of the load-bearing plate (501). The load-bearing plate (501) is configured as a detachable structure.

8. The single-face laser cutting machine for reducing laser radiation according to claim 1, characterized in that, The movable seat (6) is slidably connected to the low worktable (5) via a guide rail. A small laser cutting box (601) is installed on the movable seat (6), and the small laser cutting box (601) moves laterally on the movable seat (6) via an electric lead screw.

9. The working method of the single-face laser cutting machine for reducing laser radiation according to claim 7, characterized in that, Includes the following steps: Step 1: The operator places the board to be cut on the non-slip table (2). The retainer (201) and its top rod (202) on the table provide multi-point support for the board to prevent it from shifting during the cutting process. Step 2: Close the radiation protection door (102) so that it is embedded in the inner wall of the protective frame (101) to form a tight seal; Step 3: According to the usage requirements, for small workpieces and pipes, auxiliary processing and trimming can be carried out by the movable seat (6) on the low worktable (5) and the small laser cutting box (601). The material is placed on the low worktable (5), and the laser radiation sensor (502) detects whether the radiation protection door (102) is closed in place. The laser radiation sensor (502) on the low worktable (5) performs environmental background radiation detection and records the initial value. The automatic switch cover (4) is closed under the drive of the electric cylinder, forming a closed cutting cavity together with the protective frame (101) and the radiation protection door (102). Step 4: When cutting on the anti-slip table (2), the moving arm (3) is driven by the gear motor (304) to move along the linear guide rail (103) in the X-axis direction, the cutting box (301) moves along the moving arm (3) in the Y-axis direction via the electric screw, and the electric cylinder (303) drives the laser cutting head (302) to rise and fall in the Z-axis direction to complete the focus position adjustment, the laser emits light, and the cutting is carried out according to the preset trajectory; Step 5: The laser radiation sensor (502) transmits the monitoring data to the PLC module in real time. When the laser radiation sensor (502) detects that the reflected radiation intensity exceeds the set threshold, the PLC module automatically adjusts the power or cutting speed of the small laser cutting box (601). If the radiation intensity continues to rise to the dangerous threshold, the PLC module immediately cuts off the laser output and controls the electric cylinder to drive the automatic switch cover (4) to open automatically for pressure relief and heat dissipation. Step 6: After the cutting is completed, the laser cutting head (302) stops emitting light and cooling water is introduced through the water pump to cool the plate and the laser cutting head (302). The load-bearing plate (501) can be disassembled and replaced, and the cutting waste slides down to the collection area through the unloading slide plate (503).

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