Laser cutting machine with protection function

Abstract

The application 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 and the front plate frame are fixedly connected, the top of the side plate frame is fixedly connected with a fixing cover, and the outer side wall of the fixing cover is slidably provided with a first sliding cover.The laser cutting machine further comprises a shield assembly, the shield assembly is arranged above the side plate frame, and the shield assembly is used for closed protection during cutting; a slag removal assembly is arranged below a table plate, the slag removal assembly is used for cleaning molten slag generated during cutting; a driving assembly is arranged below the table plate, the driving assembly provides driving power for the shield assembly and the slag removal assembly; and a filtering assembly is arranged below the slag removal assembly, and the filtering assembly is used for filtering smoke dust generated during cutting.The laser cutting machine realizes automatic cleaning of molten slag during a cutting preparation stage, prevents residues on support strips from affecting cutting precision, reduces the frequency of maintenance, and improves the stability and continuity of equipment operation.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of laser cutting machines, and in particular, to a laser cutting machine with protection function. BACKGROUND

[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 energy, a laser generator produces a highly concentrated monochromatic light beam, i.e., a laser beam, when this beam of laser light shines on the surface of the material, due to the sharp rise in local temperature, the material is instantaneously melted or vaporized, thus realizing the cutting process.

[0003] The existing laser cutting machine for cutting plate materials often focuses on cutting efficiency and precision in design, and the consideration of operation safety and working environment is relatively insufficient, resulting in many potential problems. Most of these devices are not equipped with a full-coverage protective cover, which not only makes the high-energy laser beam likely to be reflected or scattered during the cutting process, increasing the risk of laser irradiation on non-target areas (such as operators and surrounding equipment), posing a safety hazard, but also means that harmful smoke and dust generated during the cutting process cannot be effectively controlled and are directly discharged into the working environment, affecting the health of the operators. In addition, after the cutting is completed, there are usually residues of molten slag on the support strips, and the long-term accumulation of these solidified molten slag not only makes it difficult to clean, but also may affect the precision of subsequent cutting and the reusability of the support strips.

[0004] How to invent a laser cutting machine with protection function to improve these problems has become a problem that needs to be solved by the technical personnel in the field. SUMMARY

[0005] In order to make up for the above shortcomings, the present application provides a laser cutting machine with protection function, which aims to improve the problems mentioned in the above background.

[0006] The present application is implemented as follows:

[0007] The application provides a laser cutting machine with a protection function, which comprises a side plate frame and a front plate frame, the side plate frame and the front plate frame are fixedly connected, a fixed cover is fixedly connected to the top of the side plate frame, a first sliding cover is slidably arranged on the outer side wall of the fixed cover, a second sliding cover is sleeved on the outer side wall of the first sliding cover, a table plate is fixedly installed on the inner side wall of the side plate frame, and the application further comprises a shield assembly, the shield assembly is arranged above the side plate frame and is used for closed protection during cutting, a slag removal assembly is arranged below the table plate and is used for cleaning the molten slag generated during cutting, a driving assembly is arranged below the table plate and provides driving power for the shield assembly and the slag removal assembly, and a filtering assembly is arranged below the slag removal assembly and is used for filtering the smoke dust generated during cutting.

[0008] Preferably, the table plate is provided with a Y-axis moving assembly, the Y-axis moving assembly is provided with an X-axis moving assembly, the X-axis moving assembly is provided with a Z-axis moving assembly, and the Z-axis moving assembly is provided with a cutting assembly.

[0009] Preferably, the bottom inner side wall of the side plate frame is fixedly connected with a bottom plate frame, the bottom plate frame is fixedly connected with a supporting plate, and the front plate frame is internally provided with a slag car.

[0010] Preferably, the shield assembly comprises a front cover rotatably connected to the second sliding cover, the front cover is provided with a window, the side wall of the side plate frame is fixedly connected with a connecting frame, the outer side wall of the first sliding cover and the inner side wall of the second sliding cover are both fixedly connected with fixing blocks, the fixing block of the second sliding cover is located outside the fixing block of the first sliding cover, a protective belt is fixedly installed at the edge of the inner side wall of the second sliding cover, the side plate frame is provided with a first groove rail and a second groove rail, the inner side wall bottom of the second sliding cover is fixedly connected with a fixing frame and a plurality of sliding frames, and the second sliding cover is slidably connected in the first groove rail through the plurality of sliding frames.

[0011] Preferably, the top of the connecting frame is rotatably connected with a roller shaft, the inner side wall of the front cover is fixedly connected with a fixed shaft, the fixed shaft penetrates through the side wall of the second sliding cover and is rotatably connected with the second sliding cover, the end portion of the fixed shaft located in the inner side of the second sliding cover is fixedly connected with a push rod, an adaptive groove is formed in the bottom end of the push rod, a sliding sleeve is rotatably connected to the push rod, a sliding rod is slidably connected to the inner side wall of the sliding sleeve, the inner side wall of the front cover is rotatably connected with the top of the sliding rod, a return spring is fixedly connected to the bottom end of the sliding rod, and the bottom end of the return spring abuts against the bottom inner side wall of the sliding sleeve.

[0012] Preferably, the driving assembly comprises a motor fixedly connected to the top of the bottom frame, an output end of the motor is provided with a planetary reduction gear assembly, an outer side wall of the planetary reduction gear assembly is fixedly connected with a gear box, an outer side wall of the side frame is fixedly connected with a rectangular sleeve, an end of the rectangular sleeve is fixedly connected with an end plate, a plurality of helical gears meshing with each other are arranged in the gear box, an output shaft of the planetary reduction gear assembly is in key connection with the lowermost helical gear, the side wall of the gear box is fixedly connected with the end of the rectangular sleeve, the side wall of the gear box is rotationally connected with a lead screw, the uppermost helical gear is fixedly sleeved on the end of the lead screw, the lead screw is located in the inside of the rectangular sleeve, the inside wall of the rectangular sleeve is slidingly connected with a ball nut through a guide groove, the ball nut is in matched connection with the thread on the lead screw through balls, a sliding groove is formed in the rectangular sleeve, the sliding groove corresponds to the position of the first groove rail, the fixed frame is fixedly connected with the outside wall of the ball nut through the first groove rail and the sliding groove, the end of the lead screw is rotationally connected with the end plate, a moving sleeve is sleeved on the lead screw, the moving sleeve is located in the inside of the rectangular sleeve, the moving sleeve penetrates through the end plate through a through hole preformed on the end plate, an end fixedly connected with a connecting shaft is arranged on the end of the moving sleeve located outside the rectangular sleeve, the connecting shaft is fixedly connected with a piston, the outside wall of the end plate is fixedly connected with a hydraulic cylinder sleeve, the piston is slidingly arranged in the inside wall of the hydraulic cylinder sleeve, a plurality of hydraulic rods are rotationally connected to the top of the bottom frame.

[0013] Preferably, a plurality of support strips are fixedly connected to the inside wall of the integrated frame in a uniform arrangement, and the top of the support strip is provided in a plurality of sharp angles.

[0014] Preferably, the slag removal assembly comprises a plurality of stabilizing rods rotationally connected to the inside wall of the side frame, an end of the stabilizing rod is fixedly connected with a moving frame, the side wall of the moving frame away from the stabilizing rod is rotationally connected with the top of the reciprocating end of the hydraulic rod, a plurality of shearing knives are fixedly connected to the top of the moving frame, the cross section of the shearing knife is in a "U" shape, the support strip is located in the inside of the shearing knife, the support strip is slidingly arranged in abutment with the inside wall of the shearing knife, the top of the shearing knife is provided in an inclined surface on both sides, a plurality of stabilizing pins are fixedly connected between the side walls of the shearing knife, and a plurality of matched grooves corresponding to the positions of the stabilizing pins are formed in the support strip.

[0015] Preferably, the filtering assembly comprises a first air pipe and a second air pipe fixedly connected to the bottom of the table board, the first air pipe and the second air pipe are located on both sides of the movable frame, the end of the first air pipe is in communication with the second air pipe through a connecting pipe, the side walls of the first air pipe and the second air pipe are provided with a plurality of air suction openings, the air suction openings are provided with ventilation nets, the side walls of the side plate frame are fixedly connected with a filter and a fan, the air inlets of the second air pipe, the filter and the fan are sequentially in communication, the inner side wall of the filter is fixedly embedded with a filter core, the inner side wall of the filter is fixedly connected with a plurality of partition plates, the partition plates are uniformly distributed with a plurality of through holes, and the adjacent two partition plates are embedded with an activated carbon plate.

[0016] Preferably, the first air pipe and the second air pipe are provided below with a slag conveying assembly, the slag conveying assembly is in rolling arrangement with the bottom frame plate through a roller, and one side of the slag conveying assembly is arranged above the slag car.

[0017] The beneficial effects of the present application are: the movement of the ball nut in the driving assembly drives the second sliding cover to slide. The second sliding cover further drives the first sliding cover to unfold, and the front cover is closed through the cooperation of the push rod and the roller, forming a closed protective space composed of the fixed cover, the first sliding cover, the second sliding cover and the front cover, effectively isolating the laser reflection path, preventing non-target areas from being irradiated, and improving the operation safety.

[0018] The movement of the ball nut also drives the piston to move in the hydraulic cylinder sleeve, pushes the hydraulic oil into the hydraulic rod, makes the reciprocating end of the hydraulic rod extend, drives the movable frame to rotate, and thus drives the shearing knife to scrape slag along both sides of the support strip. The slag cleaning action is synchronized with the opening and closing of the shield assembly, realizing automatic cleaning of molten slag in the cutting preparation stage, preventing residues on the support strip from affecting the cutting precision, reducing the maintenance frequency, and improving the stability and continuity of the equipment operation. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0020] Figure 1 is a three-dimensional structural schematic diagram of a laser cutting machine with a protection function provided by the embodiments of the present application;

[0021] Figure 2 is a schematic diagram of the internal structure of a protection assembly of a laser cutting machine with a protection function provided by the embodiments of the present application;

[0022] Figure 3 is a schematic diagram of a front cover structure of a laser cutting machine with a protection function provided by an embodiment of the present application;

[0023] Figure 4 is a schematic diagram of an internal structure of a sliding cover of a laser cutting machine with a protection function provided by an embodiment of the present application;

[0024] Figure 5 is a schematic diagram of a cross-sectional structure of a sliding cover of a laser cutting machine with a protection function provided by an embodiment of the present application;

[0025] Figure 6 is a schematic diagram of a push rod structure of a laser cutting machine with a protection function provided by an embodiment of the present application;

[0026] Figure 7 is a schematic diagram of a position of a drive assembly of a laser cutting machine with a protection function provided by an embodiment of the present application;

[0027] Figure 8 is a schematic diagram of a cross-sectional structure of a drive assembly of a laser cutting machine with a protection function provided by an embodiment of the present application;

[0028] Figure 9 is a schematic diagram of a position of a table integrated frame of a laser cutting machine with a protection function provided by an embodiment of the present application;

[0029] Figure 10 is a schematic diagram of a moving frame structure of a laser cutting machine with a protection function provided by an embodiment of the present application;

[0030] Figure 11 is a schematic diagram of a shearing knife structure of a laser cutting machine with a protection function provided by an embodiment of the present application;

[0031] Figure 12 is Figure 11 is an enlarged view of position A in FIG. 7;

[0032] Figure 13 is a schematic diagram of an air pipe structure of a laser cutting machine with a protection function provided by an embodiment of the present application;

[0033] Figure 14 is a schematic diagram of a filter structure of a laser cutting machine with a protection function provided by an embodiment of the present application;

[0034] Figure 15 is a schematic diagram of a slag conveying assembly structure of a laser cutting machine with a protection function provided by an embodiment of the present application.

[0035] 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, supporting plate; 8, slag car; 9, front cover; 11, table plate; 12, Y-axis moving assembly; 13, X-axis moving assembly; 14, Z-axis moving assembly; 21, connecting frame; 22, fixed block; 23, protective belt; 24, first groove rail; 25, second groove rail; 26, fixed frame; 27, sliding frame; 28, roller; 30, adaptive groove; 31, push rod; 32, fixed shaft; 33, sliding sleeve; 34, sliding rod; 36, return spring; 41, motor; 42, gear box; 43, rectangular sleeve; 44, helical gear; 45, lead screw; 46, ball nut; 47, sliding groove; 48, end plate; 49, connecting shaft; 50, moving sleeve; 51, piston; 52, hydraulic cylinder sleeve; 53, hydraulic rod; 60, shearing knife; 61, integrated frame; 62, supporting strip; 63, moving frame; 64, stabilizing rod; 65, stabilizing pin; 66, matching groove; 72, first air pipe; 73, second air pipe; 74, connecting pipe; 75, air suction port; 76, filter; 77, fan; 78, filter element; 79, partition plate; 80, activated carbon plate; 81, slag conveying assembly. DETAILED DESCRIPTION

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0037] Embodiment one, refer to Figures 1-6 A laser cutting machine with a protection function, comprising 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 supporting frame, the top of the side plate frame 1 is fixedly connected with a fixed cover 3, the outer side wall of the fixed cover 3 is slidably provided with a first sliding cover 4, the outer side wall of the first sliding cover 4 is sleeved with a second sliding cover 5, the inner side wall of the side plate frame 1 is fixedly installed with a table plate 11, further comprising: a protective cover assembly, the protective cover assembly is arranged above the side plate frame 1, and the protective cover assembly is used for closed protection during cutting; a slag cleaning assembly, the slag cleaning assembly is arranged below the table plate 11, and the slag cleaning assembly is used for cleaning molten slag generated during cutting; a driving assembly, the driving assembly is arranged below the table plate 11, and the driving assembly provides driving power for the protective cover assembly and the slag cleaning assembly; a filtering assembly, the filtering assembly is arranged below the slag cleaning assembly, and the filtering assembly is used for filtering smoke dust generated during cutting.

[0038] The Y-axis moving assembly 12 is arranged on the table board 11, the X-axis moving assembly 13 is arranged on the Y-axis moving assembly 12, the Z-axis moving assembly 14 is arranged on the X-axis moving assembly 13, and the cutting assembly is arranged on the Z-axis moving assembly 14. The multi-axis moving structure enables the cutting assembly to realize accurate planar movement and height adjustment in three-dimensional space, thereby realizing high-precision cutting of the workpiece. The function is to provide a flexible, stable and controllable movement platform for laser cutting, to ensure the accuracy of the cutting path and the cutting quality, and to realize the core mechanical structure of complex graphics and multi-directional cutting.

[0039] The bottom inner side wall of the side plate frame 1 is fixedly connected with a bottom plate frame 6, a plurality of bottom feet are arranged below the bottom plate frame 6 for providing stable support for the cutting machine, and a supporting plate 7 is fixedly connected to the bottom plate frame 6. A slag car 8 is arranged in the front plate frame 2, the supporting plate 7 wraps the bottom of the cutting machine, and when the slag car 8 is pushed into the cutting machine, the slag car 8 covers the front plate frame 2 corresponding to the side wall of the front plate frame 2, and the inner side wall supporting plate 7 is in contact. Through the cooperation between the supporting plate 7 and the slag car 8, a relatively sealed space is formed at the bottom of the cutting machine.

[0040] The shroud assembly includes a front cover 9 rotatably connected to the second sliding cover 5, and a window is arranged on the front cover 9 to facilitate observation of the state during cutting. The side wall of the side plate frame 1 is fixedly connected with a connecting frame 21, the outer side wall of the first sliding cover 4 and the inner side wall of the second sliding cover 5 are both fixedly connected with 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 belt 23 is fixedly installed at the edge of the inner side wall of the second sliding cover 5, the protective belt 23 is made of flexible material to prevent smoke from leaking between the first sliding cover 4 and the second sliding cover 5. First and second groove rails 24 and 25 are formed in the side plate frame 1, a fixed frame 26 and a plurality of sliding frames 27 are fixedly connected to the bottom of the inner side 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. The first sliding cover 4 is also provided with a plurality of sliding frames 27, and the sliding frames 27 slide in the second groove rail 25 to provide stable sliding support for the first sliding cover 4.

[0041] A roller shaft 28 is rotatably connected to the top of the connecting frame 21, a fixed shaft 32 is fixedly connected to the inner side wall of the front cover 9, the fixed shaft 32 penetrates through the side wall of the second sliding cover 5 and is rotatably connected with the second sliding cover 5, the end portion of the fixed shaft 32 located inside the second sliding cover 5 is fixedly connected with a push rod 31, an adaptive slot 30 is formed at the bottom end of the push rod 31, a sliding sleeve 33 is rotatably connected to the push rod 31, a sliding rod 34 is slidably connected to the inner side wall of the sliding sleeve 33, the inner side wall of the front cover 9 is rotatably connected with the top of the sliding rod 34, the bottom end of the sliding rod 34 is fixedly connected with 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.

[0042] Need to explain: in the case of the cutting machine does not work, the first sliding cover 4 cover in the fixed cover 3, the second sliding cover 5 cover in the first sliding cover 4, the front cover 9 is located in the second sliding cover 5 above, presents the open state, when the second sliding cover 5 to the direction of the slag car 8 moves a certain distance, the fixed block 22 on the second sliding cover 5 by pushing the fixed block 22 on the first sliding cover 4, make the first sliding cover 4 through the multiple sliding frame 27 on the second groove rail 25 sliding, to the second groove rail 25 limit sliding frame 27 position place stop, the above process completes the side protection work of the cutting machine.

[0043] The front cover 9 is located in the initial position of the second sliding cover 5, the bottom end of the push rod 31 points to the direction of the connecting frame 21, when the second sliding cover 5 moves to the direction of the connecting frame 21, the bottom end of the push rod 31 first contacts with the roller shaft 28, the roller shaft 28 enters the adaptive groove 30 and slides in it, when the second sliding cover 5 continues to move, the roller shaft 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, 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 front end of the front cover 9 keeps in contact with the top of the front plate frame 2 through the roller shaft 28 against the adaptive groove 30, completing the protection of the front of the cutting machine and isolating the cutting environment of the cutting machine in all directions.

[0044] In the above process, since the position of the top end of the slide rod 34 is fixed relative to the position of the second sliding cover 5, when the push rod 31 rotates, the bottom end of the sliding sleeve 33 rotates on the push rod 31, and the push rod 31 compresses the return spring 36 through the sliding of the sliding sleeve 33 and the slide rod 34. When the second sliding cover 5 moves back, the return spring 36 pushes the push rod 31 to return, so that the roller shaft 28 always keeps the corresponding position with the adaptive groove 30, and the roller shaft 28 has a sliding-out state after sliding into the adaptive groove 30. This state limits the position of the push rod 31, so that the push rod 31 keeps a stable rotating speed and drives the front cover 9 to open stably. When the push rod 31 leaves the limit of the roller shaft 28, the front cover 9 keeps in a stable open state under the elastic force of the return spring 36. Through the above process, the protective cover assembly can only be in a closed or open state. When the front cover 9 is closed, it is limited by the positions of the push rod 31 and the roller shaft 28 and cannot be opened, preventing the occurrence of safety hazards caused by opening the protective cover assembly during the cutting process of the cutting machine.

[0045] When laser cutting is performed, high-energy laser beams can be reflected or scattered, which can cause non-target areas to be irradiated by laser, increasing the safety hazard. The all-around protective cover can effectively block these potential dangerous light, reduce the risk of accidental injury; during the cutting process, the smoke and slag generated can also pollute the surrounding environment, the multiple cover bodies in the protective cover assembly cooperate with each other, which can isolate the cutting area from the outside world, reduce the diffusion of harmful substances, and keep the working environment clean; the protective cover assembly can also act as a physical barrier to prevent the operator from accidentally touching high-temperature components or moving mechanical structures, further improving the safety of the entire working environment.

[0046] Referring to Figures 7-12 The driving assembly includes a motor 41 fixedly connected to the top of the bottom frame 6, the output end of the motor 41 is provided with a planetary reduction gear assembly, the outer side wall of the planetary reduction gear assembly is fixedly connected with a gear box 42, the outer side wall of the side frame 1 is fixedly connected with a rectangular sleeve 43, the end of the rectangular sleeve 43 is fixedly connected with an end plate 48, a plurality of helical gears 44 are arranged in the gear box 42 and mesh with each other, the output shaft of the planetary reduction gear assembly is connected with the lowermost helical gear 44, the side wall of the gear box 42 is fixedly connected with the end of the rectangular sleeve 43, the side wall of the gear box 42 is rotatably connected with a lead screw 45, the uppermost helical gear 44 is fixedly sleeved on the end of the lead screw 45, the lead screw 45 is located inside the rectangular sleeve 43, the inner side wall of the rectangular sleeve 43 is slidably connected with a ball nut 46 through a guide groove, the guide groove and the protrusion on the ball nut 46 are matched to slide, which ensures that the ball nut 46 only moves in the axial direction without rotating, the ball nut 46 is connected with the thread on the lead screw 45 through balls, a sliding groove 47 is formed in the rectangular sleeve 43 and corresponds to the position of the first groove rail 24, the fixed frame 26 penetrates through the first groove rail 24 and the sliding groove 47 and is fixedly connected with the outer side wall of the ball nut 46, the end of the lead screw 45 is rotatably connected with the end plate 48, a moving sleeve 50 is sleeved on the lead screw 45, the moving sleeve 50 is located inside the rectangular sleeve 43 and penetrates through the end plate 48 through a preformed through hole in the end plate 48, the end of the moving sleeve 50 located outside the rectangular sleeve 43 is fixedly connected with a connecting shaft 49, the end of the connecting shaft 49 is fixedly connected with a piston 51, the outer side wall of the end plate 48 is fixedly connected with a hydraulic cylinder sleeve 52, the piston 51 is slidably arranged in the inner side wall of the hydraulic cylinder sleeve 52, a plurality of hydraulic rods 53 are rotatably connected to the top of the bottom frame 6, and the plurality of hydraulic rods 53 are in communication with the end of the hydraulic cylinder sleeve 52 through a high-pressure pipe.

[0047] It needs to be explained: by starting the motor 41, the motor 41 drives the lowermost bevel gear 44 to rotate through the planetary gear assembly, drives the lead screw 45 to rotate through the gear engagement in the gear box 42, drives the ball nut 46 to move axially along the lead screw 45 through the ball screw thread cooperation, drives the second sliding cover 5 to move through the fixed frame 26 on the ball nut 46, and opens and closes the protection assembly through the movement of the second sliding cover 5. The ball nut 46 continues to move, pushes the end of the moving sleeve 50, the moving sleeve 50 pushes the piston 51 to move through the connecting shaft 49, the piston 51 extrudes the hydraulic oil in the hydraulic cylinder sleeve 52, the hydraulic oil enters the plurality of hydraulic rods 53 through the high-pressure pipe, and the reciprocating end on the hydraulic rod 53 moves upward to provide driving power for the slag removal assembly. When the above-mentioned ball nut 46 moves, the shield assembly is in a gradually opened state.

[0048] The integrated frame 61 is fixedly connected to the top plate 11 by bolts, the inner side wall of the integrated frame 61 is fixedly connected with a plurality of uniformly arranged support bars 62, the top of the support bar 62 is provided with a plurality of sharp corners, the slag removal assembly comprises a plurality of stabilizing rods 64 rotatably connected to the inner side wall of the side plate frame 1, the end of the stabilizing rod 64 is fixedly connected with a moving frame 63, the side wall of the moving frame 63 away from the stabilizing rod 64 is rotatably connected with the top of the reciprocating end of the hydraulic rod 53, the top of the moving frame 63 is fixedly connected with a plurality of shearing knives 60, the cross section of the shearing knife 60 is in the shape of "U", the support bar 62 is located inside the shearing knife 60, the support bar 62 is slidably arranged in close contact with the inner side wall of the shearing knife 60, the top of the shearing knife 60 is provided with inclined surfaces on both sides, the inclined surfaces are arranged to prevent the suspension of molten 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 positions of the two sides of the shearing knife 60, prevent the shearing knife 60 from deforming greatly during use, and affect the cleaning effect, and a plurality of matching grooves 66 corresponding to the positions of the stabilizing pins 65 are arranged on the support bar 62.

[0049] It needs to be explained: since the laser cutting process involves melting of the plate, the molten solution is blown away from the cutting area by the high-pressure gas in the cutting head, and after cooling, the molten solution is easily attached to the two side walls of the top sharp of the support bar 62. This is because the top sharp of the support bar 62 is in contact with the plate, and the plate solution that has not completely solidified first contacts the nearest side wall of the top sharp, causing the molten slag to solidify and accumulate at the top sharp of the support bar 62, making it difficult to clean subsequently and affecting the falling of the molten slag.

[0050] When the top of the hydraulic rod 53 extends upward, one side of the moving frame 63 is pushed to move upward, and the moving frame 63 rotates around the position where the stabilizing rod 64 is in contact with the side plate frame 1. When the moving frame 63 moves upward, it drives the plurality of shearing knives 60 to move upward, and the plurality of shearing knives 60 scrape the two side walls of the support bar 62 from bottom to top. The shearing force removes the molten slag hanging on the support bar 62, and prevents the molten slag from accumulating on the top of the support bar 62. When the shield assembly is fully opened, the top of the shearing knife 60 is at the same horizontal position as the top of the support bar 62, which ensures the cleaning effect of the shearing knife 60 on the support bar 62 and reduces the interference of the top of the support bar 62 with the movement of the board during the placement of the board. It is easier to push the board above the support bar 62. This process is completed during the opening of the shield assembly and does not affect the cutting of the board.

[0051] Since the cutting process is continuous when cutting the board, the molten slag falling on the top of the support bar 62 is in a state of solidifying and connecting with the molten slag falling on the side wall of the support bar 62, so by scraping the position of the two sides of the support bar 62, the molten slag on the top of the support bar 62 can be separated from the support bar 62, ensuring the cleaning effect.

[0052] During the closing process of the shield assembly, the ball nut 46 gradually moves away from the moving sleeve 50, the piston 51 gradually reduces the extrusion force on the hydraulic oil, and under the action of the gravity of the moving frame 63, the top end of the hydraulic rod 53 retracts, and the moving frame 63 gradually moves downward, causing the shearing knife 60 to fall, which does not affect the cutting process.

[0053] Embodiment two, refer to Figures 13-15 The filter assembly includes a first air pipe 72 and a second air pipe 73 fixedly connected to the bottom of the table top plate 11, the first air pipe 72 and the second air pipe 73 are located on the two sides of the moving frame 63, the end of the first air pipe 72 is communicated with the second air pipe 73 through a connecting pipe 74, the side walls of the first air pipe 72 and the second air pipe 73 correspondingly are provided with a plurality of air suction openings 75, the air suction openings 75 are provided with air vents for intercepting molten slag into the air pipe, the side wall of the side plate 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 higher negative pressure under the condition of generating the same air volume, thereby achieving better smoke adsorption effect, the second air pipe 73, the filter 76 and the air inlet of the fan 77 are sequentially communicated, the inner side wall of the filter 76 is fixedly embedded with a filter core 78, the inner side wall of the filter 76 is fixedly connected with a plurality of partition plates 79, the partition plates 79 are uniformly distributed with a plurality of through holes, and adjacent two partition plates 79 are embedded with an activated carbon plate 80. By providing a plurality of partition plates 79 and a plurality of through holes on the partition plates 79, when the airflow passes through the plurality of partition plates 79, the airflow is uniformly dispersed when passing through the plurality of through holes, so that the airflow is more uniformly distributed when passing through the activated carbon plate 80, which is conducive to the adsorption of the activated carbon plate 80.

[0054] It should be noted that by setting the filter assembly, when the fan 77 is started, a negative pressure is generated at the air inlet of the fan 77, and the smoke in the shroud assembly will enter the first air pipe 72 and the second air pipe 73 from the air inlet 75 along with the airflow, the airflow drives the smoke to pass through the filter 76, and the filtered airflow is blown out from the outlet of the fan 77, reducing the pollution of the smoke to the external environment.

[0055] The first air pipe 72 and the second air pipe 73 are provided below the slag conveying assembly 81, which is rollingly arranged with the bottom plate through rollers, and one side of the slag conveying assembly 81 is arranged above the slag car 8. By setting the slag conveying assembly 81, when the molten slag falls, it falls on the slag conveying assembly 81, and the chain plate on the surface of the slag conveying assembly 81 continuously rotates to continuously convey the molten slag and waste to the slag car 8 for automatic collection of the molten slag.

[0056] It should be noted that the specific model and specifications of the motor need to be selected and determined according to the actual specifications of the device, and the specific selection calculation method adopts the existing technology in the art, so it will not be described in detail.

[0057] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A laser cutting machine with protection function, comprising 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 top of the side plate frame (1) is fixedly connected with a fixed cover (3), the outer side wall of the fixed cover (3) is slidably provided with a first sliding cover (4), the outer side wall of the first sliding cover (4) is sleeved with a second sliding cover (5), and the inner side wall of the side plate frame (1) is fixedly installed with a table plate (11), characterized in that, Also include: The shroud assembly is arranged above the side plate frame (1), the shroud assembly is used for cutting closed protection; The slag removal assembly is arranged below the table plate (11), the slag removal assembly is used for cleaning the slag produced by cutting; The drive assembly is arranged below the table plate (11), the drive assembly provides driving power for the shroud assembly and the slag removal assembly; The filter assembly is arranged below the slag removal assembly, the filter assembly is used for filtering the smoke dust produced by cutting, The shroud 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 plate frame (1) is fixedly connected with a connecting frame (21), the outer side wall of the first sliding cover (4) and the inner side wall of the second sliding cover (5) are fixedly connected with 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), the inner side wall edge of the second sliding cover (5) is fixedly installed with a protective belt (23), the side plate frame (1) is provided with a first groove rail (24) and a second groove rail (25), the inner side wall bottom of the second sliding cover (5) is fixedly connected with a fixed frame (26) and a plurality of sliding frames (27), the second sliding cover (5) is slidably connected in the first groove rail (24) through the plurality of sliding frames (27), The driving assembly comprises a motor (41) fixedly connected at the top of the bottom 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 with a gear box (42), an outer side wall of the side frame (1) is fixedly connected with a rectangular sleeve (43), an end of the rectangular sleeve (43) is fixedly connected with an end plate (48), a plurality of helical gears (44) are arranged in the gear box (42) and mesh with each other, an output shaft of the planetary reduction gear assembly is connected with the lowermost helical gear (44) through a key, the side wall of the gear box (42) is fixedly connected with the end of the rectangular sleeve (43), the side wall of the gear box (42) is rotatably connected with a lead screw (45), the uppermost helical gear (44) is fixedly sleeved on the end of the lead screw (45), the lead screw (45) is located in the inner side of the rectangular sleeve (43), the inner side wall of the rectangular sleeve (43) is slidably connected with a ball nut (46) through a guide groove, the ball nut (46) is connected with the thread on the lead screw (45) through balls, a sliding groove (47) is formed in the rectangular sleeve (43) and corresponds to the position of the first groove rail (24), the fixed frame (26) is fixedly connected with the outer side wall of the ball nut (46) through the first groove rail (24) and the sliding groove (47), the end of the lead screw (45) is rotatably connected with the end plate (48), the lead screw (45) is sleeved with a moving sleeve (50), the moving sleeve (50) is located in the inside of the rectangular sleeve (43), the moving sleeve (50) penetrates the end plate (48) through a through hole preformed in the end plate (48), an end of the moving sleeve (50) located outside the rectangular sleeve (43) is fixedly connected with a connecting shaft (49), the connecting shaft (49) is fixedly connected with a piston (51), the outer side wall of the end plate (48) is fixedly connected with a hydraulic cylinder sleeve (52), the piston (51) is slidably arranged in the inner side wall of the hydraulic cylinder sleeve (52), and a plurality of hydraulic rods (53) are rotatably connected to the top of the bottom frame (6).

2. The laser cutting machine with protection function according to claim 1, characterized in that, The Y-axis moving assembly (12) is arranged on the table board (11), the X-axis moving assembly (13) is arranged on the Y-axis moving assembly (12), the Z-axis moving assembly (14) is arranged on the X-axis moving assembly (13), and the cutting assembly is arranged on the Z-axis moving assembly (14).

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

4. The laser cutting machine with protection function according to claim 1, characterized in that, The top of the connecting frame (21) is rotationally connected with a roller (28), the inner side wall of the front cover (9) is fixedly connected with a fixed shaft (32), the fixed shaft (32) penetrates through the side wall of the second sliding cover (5) and is rotationally connected with the second sliding cover (5), the end of the fixed shaft (32) located in the inner side of the second sliding cover (5) is fixedly connected with a push rod (31), the bottom end of the push rod (31) is provided with an adaptive slot (30), the push rod (31) is rotationally connected with a sliding sleeve (33), the inner side wall of the sliding sleeve (33) is slidingly connected with a sliding rod (34), the inner side wall of the front cover (9) is rotationally connected with the top of the sliding rod (34), the bottom end of the sliding rod (34) is fixedly connected with 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).

5. The laser cutting machine with protection function according to claim 1, characterized in that, The mesa plate (11) is fixedly connected with an integrated frame (61) through bolts, the inner side wall of the integrated frame (61) is fixedly connected with a plurality of uniformly arranged support bars (62), and the top of the support bar (62) is provided with a plurality of sharp corners.

6. The laser cutting machine with a protection function according to claim 5, characterized in that, The slag removal assembly comprises a plurality of stabilizing rods (64) rotationally connected to the inner side wall of the side plate frame (1), the ends of the plurality of stabilizing rods (64) are fixedly connected with a moving frame (63), the side wall of the moving frame (63) away from the stabilizing rod (64) is rotationally connected with the top of the reciprocating end of the hydraulic rod (53), the top of the moving frame (63) is fixedly connected with a plurality of shearing knives (60), the cross section of the shearing knife (60) is in the shape of "U", the support bar (62) is located inside the shearing knife (60), the support bar (62) is slidingly arranged in abutment with the inner side wall of the shearing knife (60), the top of the shearing knife (60) is provided with inclined surfaces on both sides, a plurality of stabilizing pins (65) are fixedly connected between the two side walls of the shearing knife (60), and the support bar (62) is provided with a plurality of matching slots (66) corresponding to the positions of the stabilizing pins (65).

7. The laser cutting machine with a protection function according to claim 6, characterized in that, The filtering assembly comprises a first air pipe (72) and a second air pipe (73) fixedly connected to the bottom of the mesa plate (11), the first air pipe (72) and the second air pipe (73) are located on both sides of the moving frame (63), the end of the first air pipe (72) is communicated with the second air pipe (73) through a connecting pipe (74), the side walls corresponding to the first air pipe (72) and the second air pipe (73) are each provided with a plurality of air inlets (75), the air inlets (75) are provided with ventilation nets, the side wall of the side plate frame (1) is fixedly connected with a filter (76) and a fan (77), the air inlets of the second air pipe (73), the filter (76) and the fan (77) are sequentially and communicatively arranged, the inner side wall of the filter (76) is fixedly and inlaidly provided with a filter core (78), the inner side wall of the filter (76) is fixedly connected with a plurality of partition plates (79), the partition plates (79) are uniformly provided with a plurality of through holes, and adjacent two partition plates (79) are inlaidly provided with an activated carbon plate (80).

8. The laser cutting machine with a protection function according to claim 7, characterized in that, The first air pipe (72) and the second air pipe (73) are provided with a slag conveying assembly (81) below, the slag conveying assembly (81) is provided by rolling wheels and a chassis plate, and one side of the slag conveying assembly (81) is provided above the slag car (8).

Images