A multi-point cooperative laser cutting device

Abstract

The application relates to the technical field of laser cutting, and discloses a multi-point cooperative laser cutting device, a conveying assembly is fixedly connected to the top of a fixed base, a protective top cover is fixedly connected to the top of the conveying assembly, an automatic cleaning assembly is movably connected to one side in the protective top cover, a splash-proof laser cutting assembly is movably connected to the position, away from the automatic cleaning assembly, in the protective top cover, a limiting assembly is movably sleeved on the surface of the conveying assembly near the top, a plate body is arranged on the top of the conveying assembly, the limiting assembly comprises a rectangular plate, regularly-arranged connecting rods are fixedly connected to one side of the rectangular plate near the conveying assembly, limiting clamping plates are fixedly connected to the other ends of the connecting rods, the surface of the plate body to be cut is cleaned through the automatic cleaning assembly, dust particles and other impurities on the surface of the plate body are prevented from affecting laser energy absorption, and therefore the cutting quality of the laser cutting equipment is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of laser cutting, more particularly to a multi-point collaborative laser cutting device. BACKGROUND

[0002] The multi-point collaborative laser cutting device is a high-efficiency and high-precision industrial processing equipment. It uses a high-power density focused laser beam to scan the surface of the material, heats the material to several thousand or even tens of thousands of degrees Celsius in a very short time, and melts or vaporizes the material instantaneously to achieve the purpose of cutting the material. Through the collaborative work of multiple lasers, complex workpiece large-format or high-difficulty cutting tasks are realized. The system is usually scheduled and coordinated by a central control system to ensure cutting synchronization and consistency. It is suitable for large-scale part processing in the fields of automobile manufacturing, aerospace, etc.

[0003] However, despite the significant advantages of multi-point collaborative laser cutting devices in efficiency and precision, there are still some technical limitations and application shortcomings.

[0004] The current multi-point collaborative laser cutting device produces burrs and slag during cutting, especially the metal slag splashed onto the surface of the plate during the cutting process. As the slag cools, it will firmly adhere to the surface of the plate, affecting the quality of the cut plate and increasing the difficulty of subsequent plate processing operations.

[0005] The existing laser cutting device cannot pretreat the surface of the plate to be cut, so that the plate with dust or particle impurities on the surface is directly subjected to laser cutting. Dust or particle impurities can hinder laser energy absorption, resulting in uneven cutting seams, increased burrs, and even uncut areas, thereby reducing cutting quality. SUMMARY

[0006] In order to overcome the above-mentioned defects of the prior art, the present application provides a multi-point collaborative laser cutting device to solve the problems in the above background art.

[0007] The present application provides the following technical solution: a multi-point collaborative laser cutting device, comprising a fixed base, the fixed base top position fixedly connected with a conveying assembly, the conveying assembly top position fixedly connected with a protective top cover, the protective top cover inside one side position movably connected with an automatic cleaning assembly, the protective top cover inside position away from the automatic cleaning assembly movably connected with a splash-proof laser cutting assembly, the conveying assembly surface both sides near the top position movably sleeved with a limiting assembly, the conveying assembly top position placed with a plate body, through the automatic cleaning assembly, it is beneficial to clean the surface of the plate body to be cut, avoiding the influence of dust particles and other impurities on the surface on laser energy absorption, thereby improving the cutting quality of the laser cutting equipment.

[0008] Further, the limiting assembly includes a rectangular plate, a regular arrangement of connecting rods is fixedly connected to one side of the rectangular plate close to the conveying assembly, a limiting clamping plate is fixedly connected to the other end of the connecting rods, an adjusting screw is movably sleeved in the middle of the surface of the rectangular plate, a regular arrangement of auxiliary pulleys is movably sleeved in the inside of one side of the limiting clamping plate close to the plate body, through the limiting assembly, the position of the plate body to be cut can be limited, so as to avoid position deviation during laser cutting, thereby improving the accuracy of laser cutting.

[0009] Further, a dust collection assembly is fixedly sleeved in the inside of the automatic cleaning assembly close to the top, a regular arrangement of telescopic limiting members is fixedly connected to one side of the top of the automatic cleaning assembly away from the dust collection assembly, a first sliding rod is movably sleeved in the inside of the anti-sputtering laser cutting assembly close to the top, a second sliding rod is movably sleeved in the inside of the anti-sputtering laser cutting assembly at the bottom of the first sliding rod, the two ends of the first sliding rod and the second sliding rod are movably connected to the inner walls of the protective top cover on both sides, through the automatic cleaning assembly, the dust collection assembly and the non-powered cleaning rod, when the plate body enters the inside of the laser cutting device for cutting, the automatic cleaning assembly is raised by the plate body, the dust collection assembly in the automatic cleaning assembly drives the non-powered cleaning rod to rotate, so that the surface of the plate body at the bottom of the automatic cleaning assembly is cleaned by the non-powered cleaning rod, and at the same time, the dust and impurities cleaned are adsorbed and stored by the dust collection assembly, thereby avoiding that the dust and impurities on the surface of the plate body to be cut hinder the absorption of laser energy, and improving the cutting quality of the laser.

[0010] Further, a limiting sliding groove is formed in the inner walls of the protective top cover movably connected with the first sliding rod and the second sliding rod, and an observation window is formed in one side of the surface of the protective top cover, through the observation window, the laser cutting process can be observed in real time from the outside, so as to adjust in time during the cutting process.

[0011] Further, an auxiliary sliding block is formed in the top of one side of the automatic cleaning assembly away from the anti-sputtering laser cutting assembly, and an inclined surface is formed in the surface of the automatic cleaning assembly away from the anti-sputtering laser cutting assembly, through the inclined surface formed in the surface of the anti-sputtering laser cutting assembly, the automatic cleaning assembly is raised by the inclined surface when the plate body enters, the automatic cleaning assembly is convenient to fit the surface of the plate body, thereby improving the cleaning quality of the surface of the plate body.

[0012] Further, the dust suction assembly comprises a dust suction box, a dust storage box is fixedly connected to the top of the dust suction box, negative pressure boxes are fixedly connected to the top of the dust storage box, a dust suction motor is fixedly connected to the middle of the negative pressure box, and a plurality of non-powered cleaning rods are movably connected to the bottom of the dust suction box. The automatic cleaning assembly, the dust suction assembly and the non-powered cleaning rods are used to lift the automatic cleaning assembly when the plate body enters the laser cutting device, so that the dust suction assembly and the non-powered cleaning rods rotate, the surface of the plate body is cleaned by the non-powered cleaning rods, dust and impurities are sucked and stored by the dust suction assembly, the dust and impurities on the surface of the plate body do not hinder the absorption of laser energy, and the cutting quality of the laser is improved.

[0013] Further, the telescopic limiting member comprises a fixed tube, a spring is movably connected to the inside of the fixed tube, a connecting telescopic column is fixedly connected to the bottom of the spring, and the connecting telescopic column is movably connected to the inside of the fixed tube. The connecting telescopic column is fixedly connected to the top of the automatic cleaning assembly. The telescopic limiting member is used to push the automatic cleaning assembly to be attached to the surface of the plate body, so that the cleaning quality of the surface of the plate body is improved.

[0014] Further, the non-powered cleaning rod comprises a plurality of cleaning brushes arranged at the bottom of the non-powered cleaning rod, a dust suction hole is arranged in the middle of the non-powered cleaning rod, a plurality of auxiliary suction holes are arranged around the surface of the non-powered cleaning rod, and the auxiliary suction holes are annularly and downwardly inclined at an angle of 45 degrees. The auxiliary suction holes are annularly and downwardly inclined at an angle of 45 degrees, which is used to rotate the non-powered cleaning rod when air is sucked into the non-powered cleaning rod, so that the non-powered cleaning rod cleans the surface of the plate body.

[0015] Further, the anti-sputtering laser cutting assembly comprises a laser cutting head, a telescopic assembly is arranged at the top of the laser cutting head, a moving butt joint block is fixedly connected to the top of the telescopic assembly, a impurity removal member is fixedly sleeved on the surface of the laser cutting head, a gas guide box is fixedly sleeved on the surface of the impurity removal member, a gas guide pipeline is fixedly connected to one side of the gas guide box, the other end of the gas guide pipeline is fixedly connected to the top of a dust collection assembly, a plurality of high-pressure air jets are arranged at the inner wall of the gas guide box in a regular arrangement, the bottom end of each high-pressure air jet is horizontally arranged at the bottom end of the laser cutting head, and each high-pressure air jet is inclined to the bottom of the laser cutting head by 43-45 degrees.

[0016] Further, the impurity removal member is fixedly connected to the bottom of the storage box, and a ring-shaped internal cutting knife is arranged in the storage box.

[0017] Technical effects and advantages of the present application:

[0018] The present application is provided with an impurity removal member, a gas guide box and a high-pressure air jet, which can block the molten slag generated during cutting through the impurity removal member when the anti-sputtering laser cutting assembly moves for cutting, avoid the molten slag from splashing onto the surface of the plate and affecting the quality of the cut plate, and at the same time, the anti-sputtering laser cutting assembly drives the ring-shaped internal cutting knife at the bottom of the impurity removal member to scrape off the burrs generated during cutting on the surface of the plate, and the air in the gas guide box is sprayed out through the high-pressure air jet, so that the residues in the cutting gap are cleaned, thereby further improving the quality of laser cutting.

[0019] The present application is provided with an automatic cleaning assembly, a dust collection assembly and a non-powered cleaning rod, which can be raised by the automatic cleaning assembly when the plate body enters the laser cutting device for cutting, so that the dust collection assembly in the automatic cleaning assembly drives the non-powered cleaning rod to rotate, thereby cleaning the surface of the plate body at the bottom of the automatic cleaning assembly with the non-powered cleaning rod, and at the same time, the dust and impurities cleaned by the dust collection assembly are adsorbed and stored, thereby avoiding the dust and impurities on the surface of the plate body to be cut from hindering the absorption of laser energy, and improving the cutting quality of the laser. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the overall structure cross-sectional view of the present application.

[0021] Figure 2 It is the overall structure view of the present application.

[0022] Figure 3 It is the overall structure explosion view of the present application.

[0023] Figure 4 It is the conveying assembly structure view of the present application.

[0024] Figure 5 It is the limiting assembly structure cross-sectional view of the present application.

[0025] Figure 6 It is the protective cover structure cross-sectional view of the present application.

[0026] Figure 7 It is the automatic cleaning assembly structure cross-sectional view of the present application.

[0027] Figure 8 It is the unpowered cleaning rod structure view of the present application.

[0028] Figure 9 It is the impurity removal member structure cross-sectional view of the present application.

[0029] The figure mark is: 1, fixed base; 2, conveying assembly; 3, protective cover; 301, observation window; 302, limiting sliding groove; 4, automatic cleaning assembly; 401, auxiliary sliding block; 5, splash-proof laser cutting assembly; 501, laser cutting head; 502, telescopic assembly; 503, moving butt joint block; 6, limiting assembly; 601, rectangular plate; 602, connecting rod; 603, adjusting screw; 604, limiting clamp plate; 605, auxiliary pulley; 7, plate main body; 8, dust suction assembly; 801, dust suction box; 802, dust storage box; 803, negative pressure box; 804, dust suction motor; 9, telescopic limiting member; 901, fixed pipe; 902, spring; 903, connecting telescopic column; 10, first sliding rod; 11, second sliding rod; 12, unpowered cleaning rod; 1201, cleaning brush; 1202, dust suction hole; 1203, auxiliary adsorption hole; 13, impurity removal member; 1301, storage box; 1302, storage inner cavity; 1303, annular internal cutter; 14, air guide box; 15, air guide pipeline; 16, high-pressure air jet pipe. DETAILED DESCRIPTION

[0030] The technical solutions in the present application will be described clearly and completely below with reference to the drawings in the present application. In addition, the forms of the structures described in the following embodiments are only examples, and the multi-point cooperative laser cutting device involved in the present application is not limited to the structures described in the following embodiments. All other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0031] Referring to Figures 1-9 As shown in the drawings, the present application provides a multi-point cooperative laser cutting device, which comprises a fixed base 1, a conveying assembly 2 fixedly connected to the top of the fixed base 1, a protective top cover 3 fixedly connected to the top of the conveying assembly 2, an automatic cleaning assembly 4 movably connected to one side inside the protective top cover 3, a splash-proof laser cutting assembly 5 movably connected to a position away from the automatic cleaning assembly 4 inside the protective top cover 3, a limiting assembly 6 movably sleeved near the top of both sides of the surface of the conveying assembly 2, and a plate main body 7 placed at the top of the conveying assembly 2.

[0032] In the embodiment, the automatic cleaning assembly 4 is used to clean the surface of the plate main body 7 to be cut, so as to avoid the dust particles and other impurities on the surface from affecting the absorption of laser energy, thereby improving the cutting quality of the laser cutting equipment.

[0033] The limiting assembly 6 comprises a rectangular plate 601, a plurality of connecting rods 602 fixedly connected to one side of the rectangular plate 601 near the conveying assembly 2, a limiting clamping plate 604 fixedly connected to the other end of the connecting rod 602, an adjusting screw 603 movably sleeved on the surface of the rectangular plate 601, and a plurality of auxiliary pulleys 605 movably sleeved on one side inside the limiting clamping plate 604 near the plate main body 7.

[0034] In the embodiment, the limiting assembly 6 is used to limit the position of the plate main body 7 to be cut, so as to avoid the position deviation of the plate main body 7 during the laser cutting process, thereby improving the accuracy of the laser cutting.

[0035] The automatic cleaning assembly 4 comprises a dust suction assembly 8 fixedly sleeved near the top inside the automatic cleaning assembly 4, a plurality of telescopic limiting members 9 fixedly connected to one side of the top of the automatic cleaning assembly 4 away from the dust suction assembly 8, a first sliding rod 10 movably sleeved near the top inside the splash-proof laser cutting assembly 5, a second sliding rod 11 movably sleeved at the bottom of the first sliding rod 10 inside the splash-proof laser cutting assembly 5, and the two ends of the first sliding rod 10 and the second sliding rod 11 are movably connected to the inner walls of the protective top cover 3.

[0036] In the embodiment: through the automatic cleaning assembly 4, the dust suction assembly 8, the unpowered cleaning rod 12, when the plate body 7 enters the inside of the laser cutting device for cutting, the automatic cleaning assembly 4 is lifted by the plate body 7, the dust suction assembly 8 in the automatic cleaning assembly 4 drives the unpowered cleaning rod 12 to rotate, so that the surface of the plate body 7 at the bottom of the automatic cleaning assembly 4 is cleaned by the unpowered cleaning rod 12, and the dust and impurities cleaned by the dust suction assembly 8 are adsorbed and stored, so that the dust and impurities on the surface of the plate body 7 to be cut do not hinder the absorption of laser energy, and the cutting quality of the laser is improved.

[0037] The limiting sliding groove 302 is arranged on the inner wall of the first sliding rod 10 and the second sliding rod 11.

[0038] In the embodiment: through the observation window 301, the process of laser cutting can be observed in real time outside, so that adjustment can be made in time during the cutting process.

[0039] The auxiliary sliding block 401 is arranged on the top of the side of the automatic cleaning assembly 4 away from the splash-proof laser cutting assembly 5, and the inclined surface is arranged on the surface of the automatic cleaning assembly 4 away from the splash-proof laser cutting assembly 5.

[0040] In the embodiment: through the inclined surface arranged on the surface of the splash-proof laser cutting assembly 5, the automatic cleaning assembly 4 is lifted when the plate body 7 enters, the automatic cleaning assembly 4 is conveniently attached to the surface of the plate body 7, and the cleaning quality of the surface of the plate body 7 is improved.

[0041] The dust suction assembly 8 comprises the dust suction box 801, the dust suction box 801 is fixedly sleeved with the dust storage box 802 at the top, the dust storage box 802 is fixedly connected with the negative pressure box 803 at the top on both sides, the dust suction motor 804 is fixedly connected to the dust storage box 802 at the top and adjacent to the middle part of the negative pressure box 803, and the unpowered cleaning rod 12 arranged in an order is movably sleeved with the dust suction box 801 at the bottom of the automatic cleaning assembly 4.

[0042] In the embodiment: through the automatic cleaning assembly 4, the dust suction assembly 8, the unpowered cleaning rod 12, when the plate body 7 enters the inside of the laser cutting device for cutting, the automatic cleaning assembly 4 is lifted by the plate body 7, the dust suction assembly 8 in the automatic cleaning assembly 4 drives the unpowered cleaning rod 12 to rotate, so that the surface of the plate body 7 at the bottom of the automatic cleaning assembly 4 is cleaned by the unpowered cleaning rod 12, and the dust and impurities cleaned by the dust suction assembly 8 are adsorbed and stored, so that the dust and impurities on the surface of the plate body 7 to be cut do not hinder the absorption of laser energy, and the cutting quality of the laser is improved.

[0043] The telescopic limiting component 9 includes a fixed tube 901, a spring 902 is movably sleeved inside the fixed tube 901, a connecting telescopic column 903 is fixedly connected inside the fixed tube 901 at the bottom position of the spring 902, the connecting telescopic column 903 is movably sleeved inside the fixed tube 901, and the bottom position of the connecting telescopic column 903 is fixedly connected to the top position of the automatic cleaning component 4.

[0044] In this embodiment, the telescopic limiting member 9 facilitates the automatic cleaning component 4 to adhere to the surface of the board body 7, thereby improving the cleaning quality of the board body 7 surface.

[0045] Among them, the non-powered sweeping rod 12 has regularly arranged sweeping brushes 1201 on the surface near the bottom of the four sides, a dust suction hole 1202 is opened in the middle of the non-powered sweeping rod 12, and auxiliary suction holes 1203 are regularly arranged on the four sides of the surface of the non-powered sweeping rod 12. The auxiliary suction holes 1203 are all inclined downward in a ring at 45 degrees.

[0046] In this embodiment, the auxiliary adsorption holes 1203 on the surface of the non-powered cleaning rod 12 are all circumferentially tilted downwards at a 45-degree angle. This facilitates the rotation of the non-powered cleaning rod 12 when air is adsorbed into its internal position, thereby enabling the non-powered cleaning rod 12 to clean the surface of the main body 7 of the board.

[0047] The anti-splash laser cutting assembly 5 includes a laser cutting head 501. A telescopic assembly 502 is provided at the top of the laser cutting head 501. A movable docking block 503 is fixedly connected to the top of the telescopic assembly 502. A cleaning component 13 is fixedly sleeved on the surface of the laser cutting head 501. An air guide box 14 is fixedly sleeved on the surface of the cleaning component 13. An air guide pipe 15 is fixedly connected to one side of the air guide box 14. The other end of the air guide pipe 15 is fixedly connected to the top of the dust collection assembly 8. High-pressure jet pipes 16 are arranged in a regular pattern around the inner wall of the air guide box 14. The bottom of the high-pressure jet pipes 16 is at the same horizontal height as the bottom of the laser cutting head 501. The high-pressure jet pipes 16 are inclined at 43 to 45 degrees towards the bottom of the laser cutting head 501.

[0048] In this embodiment, the impurity removal component 13, the air guide box 14, and the high-pressure jet pipe 16 facilitate the blocking of molten slag generated during cutting by the impurity removal component 13 when the anti-splash laser cutting assembly 5 moves, preventing it from splashing onto the surface of the plate and affecting the quality of the cut plate. At the same time, the anti-splash laser cutting assembly 5 drives the annular inner cutter 1303 at the bottom of the impurity removal component 13 to scrape off the burrs generated during cutting on the surface of the plate, and the air inside the air guide box 14 is ejected through the high-pressure jet pipe 16, so that the residue in the cutting gap is cleaned, thereby further improving the quality after laser cutting.

[0049] Wherein, the bottom of the impurity removing member 13 is fixedly connected with a storage box 1301, the inside of the storage box 1301 is provided with a storage cavity 1302, and the inner wall of the storage box 1301 is provided with an annular inner cutter 1303, and the bottom of the storage cavity 1302 is movably sleeved with a ring cover;

[0050] In the embodiment, the annular inner cutter 1303 is beneficial to scrape the burrs generated by cutting the surface of the plate, thereby improving the quality of laser cutting.

[0051] Working principle of the present application:

[0052] Firstly, when the plate body 7 is cut, the dust collection motor 804 is started, then the plate body 7 is placed on the top of the conveying assembly 2, then the rotation adjusting screw 603 is rotated to drive the limiting assembly 6 to approach and clamp the plate body 7, then the conveying assembly 2 is started to make the plate body 7 enter the inside of the protective top cover 3 under the limitation of the limiting assembly 6 and the assistance of the auxiliary pulley 605, then the plate body 7 is extruded by the inclined surface of the automatic cleaning assembly 4 to push the automatic cleaning assembly 4 and the auxiliary sliding block 401 to rise in the inside of the protective top cover 3, then the automatic cleaning assembly 4 pushes the connecting telescopic column 903 to enter the inside of the fixed tube 901 and extrudes the spring 902, then the automatic cleaning assembly 4 and the spring 902 are combined with the top of the plate body 7 under the gravity and counterforce, then the plate body 7 enters the inside of the protective top cover 3 at a constant speed, then the dust collection motor 804 drives the air in the negative pressure box 803 to be discharged, so that the air is sent into the air guide pipe 15, then the air is sent into the air guide box 14 through the air guide pipe 15, then the negative pressure is formed in the negative pressure box 803, so that the air in the dust storage box 802 and the dust collection box 801 is sucked into the inside of the negative pressure box 803, then the unpowered cleaning rod 12 is driven by the external air in the dust collection assembly 8 to enter the dust collection hole 1202 and the auxiliary adsorption hole 1203, then the air enters to drive the unpowered cleaning rod 12 to rotate, then the unpowered cleaning rod 12 drives the cleaning brush 1201 to clean the surface of the plate body 7, so that the dust and particles on the top of the plate body 7 are loosened, then the dust and particles are sucked into the inside of the dust collection assembly 8 through the dust collection hole 1202 and the auxiliary adsorption hole 1203;

[0053] Then the cleaned plate body 7 reaches the bottom position of the splash-proof laser cutting assembly 5 through the automatic cleaning assembly 4, and then the splash-proof laser cutting assembly 5 is started according to requirements, so that the first sliding rod 10 and the second sliding rod 11 drive the splash-proof laser cutting assembly 5 to move forward and backward and left and right, and then the telescopic assembly 502 drives the laser cutting head 501 and the surface impurity removing member 13 to move downward, and then the laser cutting head 501 is started after reaching a certain distance from the top of the plate body 7, and cuts under the driving of the first sliding rod 10 and the second sliding rod 11, and then the impurity removing member 13 blocks the high-temperature molten slag generated during cutting to avoid splashing, and then the movement of the splash-proof laser cutting assembly 5 drives the annular inner cutter 1303 to remove the burrs after cutting, and then the movement of the impurity removing member 13 drives the burrs and molten slag to be pushed into the storage cavity 1302 in the storage box 1301 for storage, and then the high-pressure air pipe 16 discharges the air in the air guide box 14 during the cutting of the laser cutting head 501, and then the high-pressure air pipe 16 is inclined to the laser cutting head 501 by forty-three to forty-five degrees, so that the residues at the cut position of the plate body 7 are blown off, thereby improving the cutting quality of the device.

[0054] Finally, it should be pointed out that: first, in the description of the present application, it should be pointed out that unless otherwise specified and limited, the terms "installation", "connection", "connection" should be understood broadly, which can be mechanical connection or electrical connection, or the communication between two elements, or direct connection, "up", "down", "left", "right" and the like are only used to indicate the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may change;

[0055] Secondly: the present application discloses the structure involved in the embodiment of the present application, and other structures can be referred to the usual design, and in the case of no conflict, the same embodiment and different embodiments of the present application can be combined with each other;

[0056] Finally: the above only describes the preferred embodiments of the present application, and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A multi-point synergic laser cutting device comprising a fixed base (1), characterized in that: The fixed base (1) top position fixedly connected with conveying assembly (2), the conveying assembly (2) top position fixedly connected with protective top cover (3), the protective top cover (3) inside one side position movably connected with automatic cleaning assembly (4), the protective top cover (3) inside position away from automatic cleaning assembly (4) movably connected with splashproof laser cutting assembly (5), the conveying assembly (2) surface both sides near the top position movably connected with limit assembly (6), the conveying assembly (2) top position is placed with plate body (7); The automatic cleaning assembly (4) inside near the top position fixedly connected with dust collection assembly (8), the automatic cleaning assembly (4) top position away from dust collection assembly (8) one side fixedly connected with arranged telescopic limiting member (9), the splashproof laser cutting assembly (5) inside near the top position movably connected with first slide rod (10), the splashproof laser cutting assembly (5) inside at the bottom position of first slide rod (10) movably connected with second slide rod (11), the both ends of first slide rod (10) and second slide rod (11) position are movably connected in the both sides of the inner wall of protective top cover (3) position; The dust collection assembly (8) includes dust collection box (801), the dust collection box (801) top position fixedly connected with dust storage box (802), the dust storage box (802) top both sides position are fixedly connected with negative pressure box (803), the dust storage box (802) top position is fixedly connected with dust collection motor (804) in the adjacent middle position of negative pressure box (803), the automatic cleaning assembly (4) bottom position movably connected with arranged non-powered cleaning rod (12) in the bottom position of dust collection box (801); The non-powered cleaning rod (12) surface near the bottom four around position are provided with arranged cleaning brush (1201), the non-powered cleaning rod (12) middle position is provided with dust suction hole (1202), the non-powered cleaning rod (12) surface four around position are provided with arranged auxiliary adsorption hole (1203), the auxiliary adsorption hole (1203) are all annularly inclined forty-five degrees downwardly; The splashproof laser cutting assembly (5) includes laser cutting head (501), the laser cutting head (501) top position is provided with telescopic assembly (502), the telescopic assembly (502) top position is fixedly connected with moving butt joint block (503), the laser cutting head (501) surface position fixedly connected with impurity removal member (13), the impurity removal member (13) surface position fixedly connected with gas guide box (14), the gas guide box (14) one side position fixedly connected with gas guide pipeline (15), the other end of gas guide pipeline (15) is fixedly connected in the top position of dust collection assembly (8), the gas guide box (14) inner wall four around position are provided with arranged high pressure air jet pipe (16), the high pressure air jet pipe (16) all are inclined forty-three to forty-five degrees to the bottom position of laser cutting head (501).

2. A multi-point cooperative laser cutting device according to claim 1, characterized in that: The limiting assembly (6) includes a rectangular plate (601), which is fixedly connected with regularly arranged connecting rods (602) near one side of the conveying assembly (2), one end of the connecting rod (602) is fixedly connected with a limiting clamping plate (604), the surface of the rectangular plate (601) is movably sleeved with an adjusting screw (603) in the middle, and the limiting clamping plate (604) is movably sleeved with regularly arranged auxiliary pulleys (605) inside near one side of the plate body (7).

3. A multi-point cooperative laser cutting device according to claim 1, wherein: The limiting groove (302) is arranged on the inner wall of the first sliding rod (10) and the second sliding rod (11) of the protective top cover (3).

4. A multi-point cooperative laser cutting device according to claim 1, wherein: The automatic cleaning assembly (4) is provided with an auxiliary sliding block (401) on the top of the side away from the splash-proof laser cutting assembly (5), and an inclined surface is arranged on the surface of the automatic cleaning assembly (4) away from the splash-proof laser cutting assembly (5).

5. A multi-point cooperative laser cutting device according to claim 1, wherein: The telescopic limiting member (9) includes a fixed tube (901), a spring (902) movably sleeved inside the fixed tube (901), a connecting telescopic column (903) fixedly connected to the bottom of the spring (902) inside the fixed tube (901), the connecting telescopic column (903) movably sleeved inside the fixed tube (901), and the connecting telescopic column (903) fixedly connected to the top of the automatic cleaning assembly (4).

6. A multi-point cooperative laser cutting device according to claim 1, wherein: The impurity removing member (13) is fixedly connected with a storage box (1301) at the bottom, the storage box (1301) is provided with a storage inner cavity (1302) inside, an annular inner cutting knife (1303) is arranged on the inner wall of the storage box (1301), and the storage inner cavity (1302) is movably sleeved with an annular cover at the bottom.

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