Laser cutting machine with protection function

Abstract

The invention provides a laser cutting machine with a protection function, and belongs to the field of laser cutting machines, the laser cutting machine comprises a side plate frame and a front plate frame, the side plate frame is fixedly connected with the front plate frame, the top of the side plate frame is fixedly connected with a fixed cover, and the outer side wall of the fixed cover is slidably provided with a first sliding cover; the protective cover assembly is arranged above the side plate frame and used for airtight protection during cutting. The slag removal assembly is arranged below the deck plate, and the slag removal assembly is used for removing molten slag generated by cutting; the driving assembly is arranged below the deck plate, and the driving assembly provides driving power for the protective cover assembly and the slag removal assembly; and the filtering assembly is arranged below the slag removing assembly, and the filtering assembly is used for filtering smoke dust generated by cutting. According to the device, slag is automatically cleaned in the cutting preparation stage, residues on the supporting strips are prevented from influencing the cutting precision, the maintenance frequency is reduced, and the stability and continuity of equipment operation are improved.

Description

Technical Field

[0001] The present invention relates to the field of laser cutting machines, and in particular to a laser cutting machine with a protective function. Background Art

[0002] A laser cutting machine is an advanced device that uses a high-power density laser beam to precisely cut materials. By converting electrical energy into light, the laser generator produces a highly concentrated monochromatic beam, known as the laser beam. When this laser beam strikes the surface of a material, the local temperature rises sharply, causing the material to melt or vaporize instantly, thus achieving the cutting process.

[0003] Existing laser cutting machines for cutting sheet metal often focus on cutting efficiency and precision in their design, with relatively insufficient consideration given to operational safety and the working environment, leading to many potential problems. Most of these machines are not equipped with all-round protective shields. This not only causes the high-energy laser beam to reflect or scatter during the cutting process, increasing the risk of laser exposure to non-target areas (such as operators and peripheral equipment), posing a safety hazard, but also means that the harmful fumes generated during the cutting process cannot be effectively controlled and are directly discharged into the working environment, affecting the health of the operator. In addition, after cutting is completed, slag usually remains on the support bar. The long-term accumulation of this solidified slag is not only difficult to clean, but can also affect the accuracy of subsequent cutting and the reusability of the support bar.

[0004] How to invent a laser cutting machine with protective function to improve these problems has become an urgent problem to be solved by technicians in this field. Summary of the Invention

[0005] In order to make up for the above deficiencies, the present invention provides a laser cutting machine with a protective function, aiming to improve the problems mentioned in the above background.

[0006] The present invention is achieved in that: The present invention provides a laser cutting machine with a protective function, comprising a side plate frame and a front plate frame, the side plate frame and the front plate frame are fixedly connected, the top of the side plate frame is fixedly connected with a fixed cover, the outer side wall of the fixed cover is slidably provided with a first sliding cover, the outer side wall of the first sliding cover is sleeved with a second sliding cover, the inner side wall of the side plate frame is fixedly installed with a table panel, and also includes: a guard cover assembly, the guard cover assembly is arranged above the side plate frame, the guard cover assembly is used for closed protection during cutting; a slag cleaning assembly, the slag cleaning assembly is arranged below the table panel, the slag cleaning assembly is used to clean the slag generated by cutting; a drive assembly, the drive assembly is arranged below the table panel, the drive assembly provides driving power for the guard cover assembly and the slag cleaning assembly; a filter assembly, the filter assembly is arranged below the slag cleaning assembly, the filter assembly is used to filter the smoke generated by cutting.

[0007] Preferably, a Y-axis moving component is provided on the table panel, an X-axis moving component is provided on the Y-axis moving component, a Z-axis moving component is provided on the X-axis moving component, and a cutting component is provided on the Z-axis moving component.

[0008] Preferably, the bottom inner wall of the side plate frame is fixedly connected to a bottom plate frame, a support plate is fixedly connected to the bottom plate frame, and a slag truck is arranged in the front plate frame.

[0009] Preferably, the guard cover assembly includes a front cover rotatably connected to the second sliding cover, the front cover is provided with a window, the side wall of the side panel frame is fixedly connected to a connecting frame, the outer wall of the first sliding cover and the inner wall of the second sliding cover are both fixedly connected to a fixed block, the fixed block of the second sliding cover is located on the outer side of the fixed block of the first sliding cover, a protective belt is fixedly installed at the edge of the inner wall of the second sliding cover, the side panel frame is provided with a first groove rail and a second groove rail, the bottom of the inner wall of the second sliding cover is fixedly connected to a fixed frame and a plurality of sliding frames, and the second sliding cover is slidably connected in the first groove rail through a plurality of sliding frames.

[0010] Preferably, the top of the connecting frame is rotatably connected to a roller, the inner side wall of the front cover is fixedly connected to a fixed shaft, the fixed shaft passes through the side wall of the second sliding cover and is rotatably connected to the second sliding cover, the end of the fixed shaft located on the inner side of the second sliding cover is fixedly connected to a push rod, the bottom end of the push rod is provided with an adaptation groove, the push rod is rotatably connected to a sliding sleeve, the inner side wall of the sliding sleeve is slidably connected to a sliding rod, the inner side wall of the front cover is rotatably connected to the top of the sliding rod, the bottom end of the sliding rod is fixedly connected to a reset spring, and the bottom end of the reset spring abuts against the bottom inner side wall of the sliding sleeve.

[0011] Preferably, the drive assembly includes a motor fixedly connected to the top of the base frame, the output end of the motor is provided with a planetary reduction gear assembly, the outer wall of the planetary reduction gear assembly is fixedly connected to a gear box, the outer wall of the side plate frame is fixedly connected to a rectangular sleeve, the end of the rectangular sleeve is fixedly connected to an end plate, a plurality of mutually meshing helical gears are provided in the gear box, the output shaft of the planetary reduction gear assembly is keyed to the lowest helical gear, the side wall of the gear box is fixedly connected to the end of the rectangular sleeve, the side wall of the gear box is rotatably connected to a lead screw, the helical gear fixed sleeve at the top is provided at the end of the lead screw, the lead screw is located on the inner side of the rectangular sleeve, and the inner side wall of the rectangular sleeve is slidably connected to The cam is fixedly mounted on the support frame, and the cam is fixedly mounted on the support frame, and the cam is fixedly mounted on the support frame.

[0012] Preferably, an integrated frame is fixedly connected to the table panel by bolts, and a plurality of evenly arranged support bars are fixedly connected to the inner side wall of the integrated frame, and the tops of the support bars are arranged with multiple sharp angles.

[0013] Preferably, the slag cleaning assembly includes a plurality of stabilizing rods rotatably connected to the inner wall of the side plate frame, the ends of the plurality of stabilizing rods are fixedly connected to a movable frame, the movable frame is rotatably connected to the top of the reciprocating end of the hydraulic rod away from the side wall of the stabilizing rod, and the top of the movable frame is fixedly connected to a plurality of shearing knives, the cross-section of the shearing knife is "U"-shaped, the support bar is located inside the shearing knife, the support bar is slidingly arranged in fit with the inner wall of the shearing knife, the top two sides of the shearing knife are inclined, and a plurality of stabilizing pins are fixedly connected between the two side walls of the shearing knife, and a plurality of matching grooves corresponding to the positions of the stabilizing pins are provided on the support bar.

[0014] Preferably, the filter assembly includes a first air duct and a second air duct fixedly connected to the bottom of the table panel, the first air duct and the second air duct are located on both sides of the movable frame, the end of the first air duct is connected to the second air duct through a connecting pipe, the side walls corresponding to the first air duct and the second air duct are each provided with a plurality of air suction ports, a ventilation net is provided on the air suction ports, the side walls of the side panel frame are fixedly connected with a filter and a fan, the air inlet of the second air duct, the filter and the fan are connected in sequence, a filter element is fixedly embedded in the inner side wall of the filter, a plurality of partitions are fixedly connected to the inner side wall of the filter, a plurality of through holes are evenly distributed on the partitions, and an activated carbon plate is embedded between two adjacent partitions.

[0015] Preferably, a slag conveying assembly is provided below the first air duct and the second air duct, and the slag conveying assembly is arranged to roll with the base plate through rollers, and one side of the slag conveying assembly is arranged above the slag vehicle.

[0016] The present invention has the following beneficial effects: the ball nut in the drive assembly moves, driving the second sliding cover to slide. The second sliding cover further drives the first sliding cover to expand, and the push rod and roller cooperate to push the front cover to close, forming a closed protective space consisting of the fixed cover, the first sliding cover, the second sliding cover, and the front cover. This effectively isolates the laser reflection path, prevents non-target areas from being irradiated, and improves operational safety.

[0017] The movement of the ball nut also drives the piston in the hydraulic cylinder sleeve, pushing hydraulic oil into the hydraulic rod, causing the reciprocating end of the hydraulic rod to extend, driving the rotating frame to rotate, thereby driving the shear blade to scrape slag along both sides of the support bar. This slag removal action is synchronized with the opening and closing of the shield assembly, realizing automatic slag removal during the cutting preparation stage, preventing residue on the support bar from affecting cutting accuracy, reducing maintenance frequency, and improving the stability and continuity of equipment operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of a laser cutting machine with a protective function provided by an embodiment of the present invention; Figure 2 This is a schematic diagram of the internal structure of a protective component of a laser cutting machine with a protective function provided by an embodiment of the present invention; Figure 3This is a schematic structural diagram of a front cover of a laser cutting machine with a protective function provided by an embodiment of the present invention; Figure 4 This is a schematic diagram of the internal structure of a sliding cover of a laser cutting machine with a protective function provided by an embodiment of the present invention; Figure 5 This is a schematic cross-sectional structure diagram of a sliding cover of a laser cutting machine with a protective function provided by an embodiment of the present invention; Figure 6 This is a schematic diagram of a push rod structure of a laser cutting machine with a protective function provided by an embodiment of the present invention; Figure 7 This is a schematic diagram of the position of a laser cutting machine drive assembly with a protective function provided by an embodiment of the present invention; Figure 8 This is a schematic cross-sectional structure diagram of a laser cutting machine drive assembly with a protective function provided by an embodiment of the present invention; Figure 9 This is a schematic diagram of the position of a laser cutting machine integrated frame with a protective function provided by an embodiment of the present invention; Figure 10 This is a schematic structural diagram of a laser cutting machine movable frame with a protective function provided by an embodiment of the present invention; Figure 11 This is a schematic diagram of the structure of a laser cutting machine shear knife with a protective function provided in an embodiment of the present invention; Figure 12 yes Figure 11 Enlarged view of point A in the middle; Figure 13 This is a schematic diagram of the structure of a laser cutting machine air duct with a protective function provided by an embodiment of the present invention; Figure 14 This is a schematic diagram of the structure of a filter with a protective function for a laser cutting machine provided in an embodiment of the present invention; Figure 15 It is a schematic structural diagram of a slag conveying assembly of a laser cutting machine with a protective function provided by an embodiment of the present invention.

[0020] In the figure: 1, side plate frame; 2, front plate frame; 3, fixed cover; 4, first sliding cover; 5, second sliding cover; 6, bottom plate frame; 7, support plate; 8, slag car; 9, front cover; 11, table top; 12, Y-axis moving assembly; 13, X-axis moving assembly; 14, Z-axis moving assembly; 21, connecting frame; 22, fixed block; 23, protective strip; 24, first groove rail; 25, second groove rail; 26, fixed frame; 27, sliding frame; 28, roller; 30, adapter groove; 31, push rod; 32, fixed shaft; 33, sliding sleeve; 34, sliding rod; 36, return spring; 41, motor; 4 2. Gearbox; 43. Rectangular sleeve; 44. Bevel gear; 45. Lead screw; 46. Ball nut; 47. Slide; 48. End plate; 49. Connecting shaft; 50. Moving sleeve; 51. Piston; 52. Hydraulic cylinder sleeve; 53. Hydraulic rod; 60. Shear knife; 61. Integrated frame; 62. Support bar; 63. Moving frame; 64. Stabilizing bar; 65. Stabilizing pin; 66. Matching groove; 72. First air duct; 73. Second air duct; 74. Connecting pipe; 75. Air inlet; 76. Filter; 77. Fan; 78. Filter element; 79. Partition; 80. Activated carbon plate; 81. Slag conveying assembly. DETAILED DESCRIPTION

[0021] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. 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 shall fall within the scope of protection of the present invention.

[0022] Example 1, refer to Figures 1-6 , a laser cutting machine with protective function, including a side plate frame 1 and a front plate frame 2, the side plate frame 1 and the front plate frame 2 are fixedly connected, the plate frame is a combination of a connecting plate and a support frame, the top of the side plate frame 1 is fixedly connected to a fixed cover 3, the outer wall of the fixed cover 3 is slidingly provided with a first sliding cover 4, the outer wall of the first sliding cover 4 is sleeved with a second sliding cover 5, the inner wall of the side plate frame 1 is fixedly installed with a table panel 11, and also includes: a guard cover assembly, the guard cover assembly is arranged above the side plate frame 1, the guard cover assembly is used for closed protection during cutting; a slag cleaning assembly, the slag cleaning assembly is arranged below the table panel 11, the slag cleaning assembly is used to clean the slag generated by cutting; a driving assembly, the driving assembly is arranged below the table panel 11, the driving assembly provides driving power for the guard cover assembly and the slag cleaning assembly; a filter assembly, the filter assembly is arranged below the slag cleaning assembly, the filter assembly is used to filter the smoke generated by cutting.

[0023] Tabletop 11 is equipped with a Y-axis motion assembly 12, which in turn is supported by an X-axis motion assembly 13. Furthermore, a Z-axis motion assembly 14 is supported by the cutting assembly. This multi-axis motion structure enables precise planar movement and height adjustment in three-dimensional space, enabling high-precision cutting of workpieces. Its function is to provide a flexible, stable, and controllable motion platform for laser cutting, ensuring the accuracy and quality of the cutting path. It is the core mechanical structure for achieving complex patterns and multi-directional cutting.

[0024] The bottom inner wall of the side plate frame 1 is fixedly connected to the base plate frame 6, and a plurality of feet are arranged under the base plate frame 6 to provide stable support for the cutting machine. A support plate 7 is fixedly connected to the base plate frame 6, and a slag cart 8 is arranged in the front plate frame 2. The support plate 7 wraps the bottom of the cutting machine. When the slag cart 8 is pushed into the interior of the cutting machine, the slag cart 8 and the side walls corresponding to the front plate frame 2 cover the front plate frame 2, and the internal side wall support plate 7 contacts. Through the cooperation between the support plate 7 and the slag cart 8, a relatively sealed space is formed at the bottom of the cutting machine.

[0025] The guard cover assembly includes a front cover 9 rotatably connected to the second sliding cover 5, and a window is provided on the front cover 9 for convenient observation of the cutting status. The side wall of the side plate frame 1 is fixedly connected to the connecting frame 21, and the outer wall of the first sliding cover 4 and the inner wall of the second sliding cover 5 are fixedly connected to the fixing block 22. The fixing block 22 of the second sliding cover 5 is located on the outer side of the fixing block 22 of the first sliding cover 4, and a protective belt 23 is fixedly installed at the edge of the inner wall of the second sliding cover 5. The protective belt 23 is made of flexible material to prevent the smoke in the guard cover assembly from leaking from the gap between the first sliding cover 4 and the second sliding cover 5. A first groove rail 24 and a second groove rail 25 are opened on the side plate frame 1, and a fixing frame 26 and a plurality of sliding frames 27 are fixedly connected to the bottom of the inner wall of the second sliding cover 5. The second sliding cover 5 is slidably connected in the first groove rail 24 through a plurality of sliding frames 27. A plurality of sliding frames 27 are also provided on the first sliding cover 4. The sliding frame 27 slides in the second groove rail 25 to provide stable sliding support for the first sliding cover 4.

[0026] The top of the connecting frame 21 is rotatably connected to the roller 28, and the inner wall of the front cover 9 is fixedly connected to the fixed shaft 32. The fixed shaft 32 passes through the side wall of the second sliding cover 5 and is rotatably connected to the second sliding cover 5. The end of the fixed shaft 32 located on the inner side of the second sliding cover 5 is fixedly connected to the push rod 31. The bottom end of the push rod 31 is provided with an adaptation groove 30. The push rod 31 is rotatably connected to the sliding sleeve 33, and the inner wall of the sliding sleeve 33 is slidably connected to the sliding rod 34. The inner wall of the front cover 9 is rotatably connected to the top of the sliding rod 34, and the bottom end of the sliding rod 34 is fixedly connected to the return spring 36, and the bottom end of the return spring 36 abuts against the bottom inner wall of the sliding sleeve 33.

[0027] It should be noted that: when the cutting machine is not working, the first sliding cover 4 covers the fixed cover 3, the second sliding cover 5 covers the first sliding cover 4, and the front cover 9 is located above the second sliding cover 5 and is in an open state. When the second sliding cover 5 moves a certain distance toward the slag truck 8, the fixed block 22 on the second sliding cover 5 pushes the fixed block 22 on the first sliding cover 4, so that the first sliding cover 4 slides on the second groove rail 25 through the multiple sliding frames 27 thereon, and stops at the place where the second groove rail 25 limits the position of the sliding frame 27. The above process completes the side protection work of the cutting machine.

[0028] When the front cover 9 is in the initial position of the second sliding cover 5, the bottom end of the push rod 31 points in the direction of the connecting frame 21. When the second sliding cover 5 moves toward the direction of the connecting frame 21, the bottom end of the push rod 31 first contacts the roller 28, and the roller 28 enters the adaptation groove 30 and slides in the adaptation groove 30. When the second sliding cover 5 continues to move, the roller 28 limits the position of the bottom end of the push rod 31, so that the push rod 31 rotates around the fixed shaft 32 as the axis. When the fixed shaft 32 rotates, it drives the front cover 9 to rotate on the second sliding cover 5. When the second sliding cover 5 reaches the limit of movement, the roller 28 presses against the adaptation groove 30, and the front bottom of the front cover 9 is always in contact with the top of the front plate frame 2, completing the protection of the front of the cutting machine and isolating the cutting environment of the cutting machine in all directions.

[0029] During the above process, since the top end of the slide rod 34 is fixed relative to the second sliding cover 5, when the push rod 31 rotates, the bottom end of the sleeve 33 rotates on the push rod 31. The sliding movement between the sleeve 33 and the slide rod 34 compresses the return spring 36. When the second sliding cover 5 moves back, the return spring 36 rebounds and pushes the push rod 31, ensuring that the roller 28 always remains in the corresponding position with the adapting groove 30. The roller 28 slides into and out of the adapting groove 30, which determines the position of the push rod 31, maintaining a steady rotation speed and driving the front cover 9 to open smoothly. When the push rod 31 leaves the position of the roller 28, the elastic force of the return spring 36 maintains the front cover 9 in a stable open state. Through this process, the shield assembly can only be in either a closed or open state. When the front cover 9 is closed, it is constrained by the position of the push rod 31 and the roller 28 and cannot be opened. This prevents the operator from opening the shield assembly during the cutting process, which could lead to safety hazards.

[0030] During laser cutting, high-energy laser beams may reflect or scatter, potentially irradiating non-target areas and increasing safety risks. A full-range protective shield can effectively block these potentially dangerous rays, reducing the risk of accidental injury. During the cutting process, smoke and slag generated can also pollute the surrounding environment. The multiple shield bodies within the shield assembly work together to isolate the cutting area from the outside world, reducing the spread of harmful substances and maintaining a clean working environment. The shield assembly also acts as a physical barrier, preventing operators from accidentally coming into contact with hot components or moving mechanical structures, further enhancing the safety of the entire working environment.

[0031] Reference Figure 7-12 The drive assembly includes a motor 41 fixedly connected to the top of the base frame 6, and a planetary reduction gear assembly is provided at the output end of the motor 41. The outer wall of the planetary reduction gear assembly is fixedly connected to a gear box 42, and the outer wall of the side plate frame 1 is fixedly connected to a rectangular sleeve 43. The end of the rectangular sleeve 43 is fixedly connected to an end plate 48. A plurality of mutually meshing helical gears 44 are provided in the gear box 42. The output shaft of the planetary reduction gear assembly is key-connected to the lowest helical gear 44, and the side wall of the gear box 42 is fixedly connected to the end of the rectangular sleeve 43. The side wall of the gear box 42 is rotatably connected to a lead screw 45. The helical gear 44 at the top is fixedly sleeved on the end of the lead screw 45. The lead screw 45 is located on the inner side of the rectangular sleeve 43. The inner side wall of the rectangular sleeve 43 is slidably connected to a ball nut 46 through a guide groove. The guide groove cooperates with the protrusion on the ball nut 46 to slide, ensuring that the ball nut 46 only moves axially and does not rotate. The ball nut 46 is connected to the threaded joint on the lead screw 45 through the ball, and a slide groove 47 is provided on the rectangular sleeve 43. The slide groove 47 corresponds to the position of the first groove rail 24. The fixed frame 26 passes through the first groove rail 24 and the slide groove 47 and is fixedly connected to the outer wall of the ball nut 46. The end of the lead screw 45 is rotatably connected to the end plate 48. A movable sleeve 50 is sleeved on the lead screw 45. The movable sleeve 50 is located inside the rectangular sleeve 43. The movable sleeve 50 passes through the end plate 48 through a preset through-hole on the end plate 48. The end of the movable sleeve 50 located outside the rectangular sleeve 43 is fixedly connected to a connecting shaft 49. The end of the connecting shaft 49 is fixedly connected to a piston 51. The outer wall of the end plate 48 is fixedly connected to a hydraulic cylinder sleeve 52. The piston 51 is slidably arranged with the inner wall of the hydraulic cylinder sleeve 52. The top of the base frame 6 is rotatably connected to multiple hydraulic rods 53. Multiple hydraulic rods 53 are connected to the end of the hydraulic cylinder sleeve 52 through a high-pressure pipe.

[0032] It should be noted that by starting the motor 41, the motor 41 drives the lowest helical gear 44 to rotate through the planetary reduction gear assembly, and through the meshing of multiple gears in the gear box 42, drives the screw 45 to rotate. When the screw 45 rotates, it engages with the ball thread, driving the ball nut 46 along the axial movement of the screw 45. The fixed bracket 26 on the ball nut 46 drives the second sliding cover 5 to move, and the movement of the second sliding cover 5 completes the opening and closing of the protective assembly. The ball nut 46 continues to move, pushing the end of the movable sleeve 50. The movable sleeve 50 pushes the piston 51 to move through the connecting shaft 49. The piston 51 squeezes the hydraulic oil in the hydraulic cylinder sleeve 52, and the hydraulic oil enters the multiple hydraulic rods 53 through the high-pressure pipe, causing the reciprocating ends on the hydraulic rods 53 to move upward, providing driving power for the slag cleaning assembly. When the ball nut 46 moves, the protective cover assembly gradually opens.

[0033] The table panel 11 is fixedly connected with an integrated frame 61 by bolts, and the inner side wall of the integrated frame 61 is fixedly connected with a plurality of evenly arranged support bars 62, and the top of the support bar 62 is set with multiple sharp angles. The slag cleaning assembly includes a plurality of stabilizing rods 64 rotatably connected to the inner side wall of the side plate frame 1, and the ends of the plurality of stabilizing rods 64 are fixedly connected with a mobile frame 63. The side wall of the mobile frame 63 away from the stabilizing rod 64 is rotatably connected to the top of the reciprocating end of the hydraulic rod 53. The top of the mobile frame 63 is fixedly connected with a plurality of shearing knives 60, and the cross section of the shearing knife 60 is It is in a "U" shape, and the support bar 62 is located inside the shearing knife 60. The support bar 62 is slidingly arranged in contact with the inner side wall of the shearing knife 60. The top two sides of the shearing knife 60 are inclined. The inclined inclined surfaces can prevent hanging slag. A plurality of stabilizing pins 65 are fixedly connected between the two side walls of the shearing knife 60. The stabilizing pins 65 limit the position of the two sides of the shearing knife 60 to prevent the shearing knife 60 from undergoing large deformation during use, which affects the cleaning effect. A plurality of matching grooves 66 corresponding to the positions of the stabilizing pins 65 are provided on the support bar 62.

[0034] It should be noted that: since the laser cutting process involves the melting of the plate, the molten solution will be blown away from the cutting area by the high-pressure gas in the cutting head. After cooling, the melted solution will easily adhere to the two side walls of the top of the support bar 62. This is because the top of the support bar 62 is in contact with the plate, and the incompletely solidified plate solution first contacts the side wall closest to the top, causing the slag to solidify and accumulate at the top of the support bar 62, making subsequent cleaning difficult and affecting the falling of the slag.

[0035] When the top of the hydraulic rod 53 extends upward, it pushes one side of the movable frame 63 upward. The movable frame 63 rotates around the contact position of the stabilizer bar 64 with the side panel frame 1. When the movable frame 63 moves upward, it drives the multiple shear blades 60 upward. The multiple shear blades 60 scrape the two side walls of the support bar 62 between them from bottom to top, removing the slag hanging on the support bar 62 through shear force, and preventing the slag from accumulating on the top of the support bar 62. When the guard assembly is fully opened, the top of the shear blade 60 is at the same horizontal position as the top of the support bar 62, ensuring the cleaning effect of the shear blade 60 on the support bar 62. It also reduces the interference of the top of the support bar 62 on the movement of the plate during the placement process, making it easier for the operator to push the plate above the support bar 62. This process is completed during the opening of the guard assembly and does not affect the cutting of the plate.

[0036] Since the cutting process is continuous when cutting the plate, the slag falling on the top width position of the support bar 62 and the slag falling on the side wall position of the support bar 62 solidify and connect into one at the same time. Therefore, by scraping the positions on both sides of the support bar 62, the slag on the top of the support bar 62 can be separated from the support bar 62 to ensure the cleaning effect.

[0037] During the closing process of the shield assembly, the ball nut 46 gradually moves away from the movable sleeve 50, and the piston 51 gradually reduces the squeezing force on the hydraulic oil. Under the action of the gravity of the movable frame 63, the top of the hydraulic rod 53 retracts, and the movable frame 63 gradually moves downward, causing the shear knife 60 to fall, which will not affect the cutting process.

[0038] Example 2, refer to Figure 13-15 The filter assembly includes a first air duct 72 and a second air duct 73 fixedly connected to the bottom of the table panel 11. The first air duct 72 and the second air duct 73 are located on both sides of the movable frame 63. The end of the first air duct 72 is connected to the second air duct 73 through a connecting pipe 74. The side walls corresponding to the first air duct 72 and the second air duct 73 are each provided with a plurality of air suction ports 75. A ventilation net is provided on the air suction port 75 to intercept slag from entering the air duct. The side wall of the side panel frame 1 is fixedly connected with a filter 76 and a fan 77. The fan 77 is a centrifugal fan. Compared with an axial flow fan, it can provide a higher negative pressure when generating the same air volume. In order to achieve a better smoke and dust adsorption effect, the air inlet of the second air duct 73, the filter 76 and the fan 77 are connected in sequence, and the inner wall of the filter 76 is fixedly embedded with a filter element 78. The inner wall of the filter 76 is fixedly connected with multiple partitions 79, and multiple through holes are evenly distributed on the partitions 79. An activated carbon plate 80 is embedded between two adjacent partitions 79. By setting multiple partitions 79 and multiple through holes thereon, when the airflow passes through multiple partitions 79, the airflow is evenly dispersed when passing through multiple through holes, so that when the airflow passes through the activated carbon plate 80, the airflow distribution is more even, which is conducive to the adsorption of the activated carbon plate 80.

[0039] It should be noted that: by setting up a filter component, when the fan 77 is started, a negative pressure is generated at the air inlet of the fan 77, and the smoke inside the shield component will enter the first air duct 72 and the second air duct 73 from the air inlet 75 along with the air flow. The air flow drives the smoke through the filter 76, and is filtered by the filter element 78 and multiple activated carbon plates 80 in the filter 76. The filtered air flow is blown out from the outlet of the fan 77, reducing the pollution of the smoke to the external environment.

[0040] A slag conveying assembly 81 is provided below the first air duct 72 and the second air duct 73. The slag conveying assembly 81 is arranged to roll with the roller and the base plate. One side of the slag conveying assembly 81 is arranged above the slag cart 8. By setting the slag conveying assembly 81, when the slag falls, it falls on the slag conveying assembly 81, and the chain plate on the surface of the slag conveying assembly 81 rotates continuously to continuously convey the slag and waste into the slag cart 8 for automatic collection of the slag.

[0041] It should be noted that the specific model and specifications of the motor need to be selected and determined based on the actual specifications of the device, and the specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0042] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A laser cutting machine with a protective function, comprising a side panel frame (1) and a front panel frame (2), wherein the side panel frame (1) and the front panel frame (2) are fixedly connected, a fixed cover (3) is fixedly connected to the top of the side panel frame (1), a first sliding cover (4) is slidably provided on the outer side wall of the fixed cover (3), a second sliding cover (5) is sleeved on the outer side wall of the first sliding cover (4), a table panel (11) is fixedly installed on the inner side wall of the side panel frame (1), and the machine is characterized in that: Also includes: A shield assembly is provided above the side plate frame (1), and the shield assembly is used for airtight protection during cutting; A slag cleaning component is provided below the table panel (11) and is used to clean slag generated by cutting; A drive assembly, the drive assembly is arranged below the table panel (11), and the drive assembly provides driving power for the shield assembly and the slag cleaning assembly; The filter assembly is arranged below the slag cleaning assembly and is used to filter the smoke and dust generated by cutting.

2. The laser cutting machine with a protective function according to claim 1, characterized in that: A Y-axis moving assembly (12) is provided on the table panel (11), an X-axis moving assembly (13) is provided on the Y-axis moving assembly (12), a Z-axis moving assembly (14) is provided on the X-axis moving assembly (13), and a cutting assembly is provided on the Z-axis moving assembly (14).

3. The laser cutting machine with a protective function according to claim 1, characterized in that: The bottom inner wall of the side frame (1) is fixedly connected to a bottom frame (6), a support plate (7) is fixedly connected to the bottom frame (6), and a slag vehicle (8) is provided in the front frame (2).

4. The laser cutting machine with a protective function according to claim 1, characterized in that: The shield assembly includes a front cover (9) rotatably connected to the second sliding cover (5), the front cover (9) is provided with a window, the side wall of the side panel frame (1) is fixedly connected to a connecting frame (21), the outer wall of the first sliding cover (4) and the inner wall of the second sliding cover (5) are fixedly connected to a fixed block (22), the fixed block (22) of the second sliding cover (5) is located outside the fixed block (22) of the first sliding cover (4), a protective strip (23) is fixedly installed at the edge of the inner wall of the second sliding cover (5), a first groove rail (24) and a second groove rail (25) are provided on the side panel frame (1), a fixed frame (26) and a plurality of sliding frames (27) are fixedly connected to the bottom of the inner wall of the second sliding cover (5), and the second sliding cover (5) is slidably connected in the first groove rail (24) through the plurality of sliding frames (27).

5. The laser cutting machine with a protective function according to claim 4, characterized in that: The top of the connecting frame (21) is rotatably connected to a roller (28), the inner side wall of the front cover (9) is fixedly connected to a fixed shaft (32), the fixed shaft (32) passes through the side wall of the second sliding cover (5) and is rotatably connected to the second sliding cover (5), the end of the fixed shaft (32) located on the inner side of the second sliding cover (5) is fixedly connected to a push rod (31), the bottom end of the push rod (31) is provided with an adaptor groove (30), the push rod (31) is rotatably connected to a sliding sleeve (33), the inner side wall of the sliding sleeve (33) is slidably connected to a sliding rod (34), the inner side wall of the front cover (9) is rotatably connected to the top of the sliding rod (34), the bottom end of the sliding rod (34) is fixedly connected to a return spring (36), and the bottom end of the return spring (36) abuts against the bottom inner side wall of the sliding sleeve (33).

6. The laser cutting machine with a protective function according to claim 4, characterized in that: The driving assembly comprises a motor (41) fixedly connected to the top of the bottom plate frame (6), an output end of the motor (41) is provided with a planetary reduction gear assembly, an outer side wall of the planetary reduction gear assembly is fixedly connected to a gear box (42), an outer side wall of the side plate frame (1) is fixedly connected to a rectangular sleeve (43), an end of the rectangular sleeve (43) is fixedly connected to an end plate (48), a plurality of mutually meshing helical gears (44) are provided in the gear box (42), and the outer side wall of the planetary reduction gear assembly is fixedly connected to a rectangular sleeve (43). The output shaft is key-connected to the bottom helical gear (44), the side wall of the gear box (42) is fixedly connected to the end of the rectangular sleeve (43), the side wall of the gear box (42) is rotatably connected to a lead screw (45), the top helical gear (44) is fixedly sleeved on the end of the lead screw (45), the lead screw (45) is located on the inner side of the rectangular sleeve (43), the inner side wall of the rectangular sleeve (43) is slidably connected to a ball nut (46) through a guide groove, and the ball nut (46) is connected to the lead screw through the ball and the lead screw. The threaded connection on the rod (45) is matched, and a slide groove (47) is provided on the rectangular sleeve (43), and the slide groove (47) corresponds to the position of the first groove rail (24). The fixed frame (26) passes through the first groove rail (24) and the slide groove (47) and is fixedly connected to the outer wall of the ball nut (46). The end of the lead screw (45) is rotatably connected to the end plate (48). A movable sleeve (50) is provided on the lead screw (45), and the movable sleeve (50) is located inside the rectangular sleeve (43). The movable sleeve (50) passes through the end plate (48) through a preset opening on the end plate (48); the end of the movable sleeve (50) located outside the rectangular sleeve (43) is fixedly connected to a connecting shaft (49); the end of the connecting shaft (49) is fixedly connected to a piston (51); the outer wall of the end plate (48) is fixedly connected to a hydraulic cylinder sleeve (52); the piston (51) and the inner wall of the hydraulic cylinder sleeve (52) are slidably arranged; and the top of the base frame (6) is rotatably connected to a plurality of hydraulic rods (53).

7. The laser cutting machine with a protective function according to claim 6, characterized in that: An integrated frame (61) is fixedly connected to the table panel (11) by means of bolts, and a plurality of evenly arranged support bars (62) are fixedly connected to the inner side wall of the integrated frame (61), wherein the tops of the support bars (62) are provided with a plurality of sharp corners.

8. The laser cutting machine with a protective function according to claim 7, characterized in that: The slag cleaning assembly includes a plurality of stabilizing rods (64) rotatably connected to the inner side wall of the side plate frame (1), the ends of the plurality of stabilizing rods (64) are fixedly connected to a movable frame (63), the side wall of the movable frame (63) away from the stabilizing rod (64) is rotatably connected to the top of the reciprocating end of the hydraulic rod (53), the top of the movable frame (63) is fixedly connected to a plurality of shearing knives (60), the cross section of the shearing knives (60) is "U"-shaped, the support bar (62) is located inside the shearing knives (60), the support bar (62) and the inner side wall of the shearing knives (60) are slidingly arranged, the top two sides of the shearing knives (60) are inclined, and a plurality of stabilizing pins (65) are fixedly connected between the two side walls of the shearing knives (60), and the support bar (62) is provided with a plurality of matching grooves (66) corresponding to the positions of the stabilizing pins (65).

9. The laser cutting machine with a protective function according to claim 8, characterized in that: The filter assembly comprises a first air duct (72) and a second air duct (73) fixedly connected to the bottom of the table panel (11); the first air duct (72) and the second air duct (73) are located on both sides of the movable frame (63); the end of the first air duct (72) is connected to the second air duct (73) via a connecting pipe (74); the side walls corresponding to the first air duct (72) and the second air duct (73) are each provided with a plurality of air suction ports (75); and a ventilation net is provided on the air suction ports (75). The side wall of the side panel frame (1) is fixedly connected with a filter (76) and a fan (77); the air inlet of the second air duct (73), the filter (76) and the fan (77) are sequentially connected; the inner wall of the filter (76) is fixedly embedded with a filter element (78); the inner wall of the filter (76) is fixedly connected with a plurality of partitions (79); a plurality of through holes are evenly distributed on the partitions (79); and an activated carbon plate (80) is embedded between two adjacent partitions (79).

10. The laser cutting machine with a protective function according to claim 9, characterized in that: A slag conveying assembly (81) is provided below the first air duct (72) and the second air duct (73). The slag conveying assembly (81) is arranged to roll with a roller and a bottom frame plate. One side of the slag conveying assembly (81) is provided above the slag vehicle (8).

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