A four-axis numerical control laser cutting device

Abstract

The application provides a four-axis numerical control laser cutting equipment, and relates to the technical field of laser cutting machines.The four-axis numerical control laser cutting equipment comprises a machine box and a laser cutting mechanism arranged in the machine box.The machine box is internally provided with a cavity, and a partition plate is arranged in the cavity to divide the cavity into a working area and a filtering area.A through pipe is arranged on the partition plate to connect the working area and the filtering area.A purification mechanism is arranged in the filtering area to purify waste gas generated by the operation of the laser cutting mechanism.A cleaning mechanism and a mounting box are further arranged in the filtering area to remove filter materials attached to the purification mechanism by liquid cleaning.The four-axis numerical control laser cutting equipment has low corrosiveness to most metals due to the chemical properties of the alkaline solution, reduces corrosion to the internal structure of the machine box, neutralizes acidic dirt in the filter element, and has the advantages of efficient dirt removal, structure protection, environmental protection and energy saving when cleaning the metal powder filter element.

Description

Technical Field

[0001] This invention relates to the field of laser cutting machine technology, specifically a four-axis CNC laser cutting device. Background Technology

[0002] A four-axis laser cutting machine is a multi-degree-of-freedom precision machining equipment that achieves three-dimensional cutting of complex curved surfaces, pipes, or irregularly shaped workpieces through the coordinated control of X / Y / Z three-axis linear motion and R-axis (rotation axis).

[0003] Chinese utility model patent application number CN202122134930.4 discloses a mobile dust removal system for a laser cutting machine, comprising: a fixed collection device, an exhaust gas collection device, a mobile collection device, and a photodetector. The exhaust gas collection device includes exhaust gas collection components corresponding to the dust removal area. During the laser cutting process, at least one exhaust gas collection component corresponding to the dust removal area is activated, and the fixed collection device, the exhaust gas collection component, and the mobile collection device moving to the dust removal area together form a sealed space. This mobile dust removal system ensures that exhaust gas containing a large amount of metal dust meets atmospheric environmental quality standards after treatment, avoiding harm to human health. The system also relates to a laser cutting machine incorporating the aforementioned mobile dust removal system.

[0004] The aforementioned device collects dust using filter cartridges. However, during peak order periods, the equipment may operate for extended periods with limited opportunities to replace the filter cartridges, affecting dust removal quality and negatively impacting the workshop working environment. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and propose a four-axis CNC laser cutting equipment to solve the problem that when dust is collected by means of filter element, the equipment will work for a long time during peak order periods and there is no opportunity to replace the filter element, which affects the dust removal quality and has a bad impact on the workshop working environment.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a four-axis CNC laser cutting equipment, comprising a chassis and a laser cutting mechanism disposed inside the chassis. The chassis has a chamber, and a partition is provided inside the chamber to divide the chamber into a working area and a filtering area. A connecting pipe is provided on the partition to connect the working area and the filtering area. A purification mechanism is provided inside the filtering area to purify the exhaust gas generated by the laser cutting mechanism. The filtering area is also provided with a cleaning mechanism and a mounting box to remove the filter material attached to the purification mechanism by liquid cleaning. A storage box is provided at the bottom of the chassis to collect the waste liquid after cleaning. An air pump is installed inside the mounting box to draw the gas in the filtering area into the waste liquid for neutralization, secondary treatment, and then discharge.

[0007] The purification mechanism includes an electric rotating disc and several drive units. Each drive unit is equipped with a filter element for filtering exhaust gas. Each filter element is arranged in a ring around the electric rotating disc. One of the filter elements is connected to a through pipe. After filtering the exhaust gas, the electric rotating disc changes the position of the filter element to complete the replacement of the filter element. The drive unit can change the distance between two filter elements and can drive the filter element to rotate. A cleaning shaft is fixed at the center of the electric rotating disc. The drive unit causes the rotating filter element to contact the cleaning shaft to clean the filter element by wiping.

[0008] Preferably, the drive unit includes a lead screw type electric slide rail and a micro motor. The lead screw type electric slide rail has a lead screw sleeve, and a micro motor is fixedly installed at one end of the lead screw sleeve. The output shaft of the micro motor is fixedly connected to a retaining shaft, and the retaining shaft fixes the filter element.

[0009] Preferably, the chassis is fixedly installed with a bracket inside the filtration area, the bracket is fixedly connected to the electric rotating disk, and the screw-type electric slide rails are all fixed around the electric rotating disk.

[0010] The retaining shaft includes a threaded sleeve and a screw rod, which are fitted together for fixation. A groove matching the retaining shaft is provided at the center of the filter element. When the retaining shaft fixes the filter element, the ends of the two are flush.

[0011] Preferably, the purification mechanism is provided with support plates on both sides, and the partition plate, the two support plates and the inner wall of the chassis form three mutually isolated small chambers. The purification mechanism is located in the middle small chamber, and the other two small chambers are respectively equipped with cleaning mechanisms and mounting boxes.

[0012] The cleaning mechanism includes a cleaning fluid storage tank and a housing. The cleaning fluid storage tank contains liquid, and the cleaning fluid storage tank and the housing are interconnected. A water inlet pipe is also connected to the bottom of the housing.

[0013] Preferably, the purification mechanism also includes a motor, which is fixed to the inner wall of the housing. The output shaft of the motor rotates through the bottom of the housing. An agitator shaft is fixedly connected to one end of the output shaft inside the housing. A nozzle is provided on the outside of the housing, and the nozzle nozzle is aligned with the cleaning shaft.

[0014] Preferably, the storage box has pipe openings at both the top and bottom of one side. The upper pipe opening is connected to an exhaust pipe, and the other pipe opening is connected to a drain pipe. A gas detector is also installed inside the storage box. When the exhaust gas is discharged into the storage box and neutralized with the waste liquid to the set index, it is discharged to the outside through the pipe opening.

[0015] Preferably, a drainage trough is provided in the filtration area, and the drainage trough is connected to a first pipe, which is connected to the inside of the storage box.

[0016] Preferably, the upper and lower ends of the mounting box are connected to a second pipe and a third pipe, respectively. The end of the second pipe is located inside the small cavity in the middle, and the end of the third pipe is located at the bottom of the storage box.

[0017] Preferably, an electric slide rail is fixedly connected to one side of the two partitions, a baffle is installed on the electric slide rail, and a through hole is opened in the small cavity located in the middle of the inner wall of the chassis to allow air inside the small cavity to circulate with the outside. The electric slide rail drives the baffle to move and block the through hole.

[0018] Preferably, the laser cutting mechanism includes an X-axis electric slide rail, a Y-axis electric slide rail, a Z-axis electric slide rail, and an R-axis cutting machine. The X-axis electric slide rail is installed on the inner wall of the machine housing. The Y-axis electric slide rail is fixed to the guide block of the X-axis electric slide rail. The Z-axis electric slide rail is installed on the guide block of the Y-axis electric slide rail. The R-axis cutting machine is connected to the guide block of the Z-axis electric slide rail.

[0019] Compared with existing technologies, this four-axis CNC laser cutting equipment has the following advantages:

[0020] 1. Due to the low corrosiveness of alkaline solutions to most metals, corrosion to the internal structure of the casing is reduced. Combined with high-pressure rinsing from the nozzle, it can thoroughly remove metal powder blockages inside the filter element while neutralizing acidic dirt inside the filter element. When cleaning metal powder filter elements, it has the advantages of efficient cleaning, structural protection, environmental protection and energy saving.

[0021] 2. The alkaline solution after rinsing is stored in the storage tank through a drainage trough, while the filtered high-temperature gas is discharged into the alkaline solution through a third pipe. After the high-temperature acidic gas and the alkaline solution undergo a chemical reaction to neutralize each other, the gas detector can detect the acid content in the exhaust gas. Once the emission standards are met, the gas is discharged through the pipe head set at the top. The pipe head at the bottom is used to connect to the water pump to discharge the waste liquid, thus completing the purification of the gas and ensuring the working environment of the workshop.

[0022] Third, after a certain period of use, during the interval between cutting the next workpiece, the filter element connected to the pipe can be rotated and replaced by an electric rotating disc to complete the filter element replacement. The equipment is equipped with a large number of filter elements and automatically replaces them, so that the equipment does not need to manually replace the filter elements during long-term operation, thereby improving processing efficiency and protecting the workshop environment.

[0023] 4. A micro motor drives the filter element to rotate and rub against the protrusions on the outside of the cleaning shaft. At the same time, a high-concentration alkaline solution is put into the tank from the cleaning fluid storage tank, mixed with a certain amount of clean water and stirred. Driven by the nozzle, the cleaning fluid is sprayed onto the filter element. The filter element and the cleaning shaft rub against each other to clean the metal powder attached to the filter element. Then the filter element is reset and rotated by the micro motor to shake out the internal water. The baffle is moved downward by the electric slide rail to ventilate and dry the filter element. The filter element can be cleaned and replaced automatically without the need for manual labor.

[0024] 5. The chassis is equipped with a disassembly plate, which allows for direct replacement of the filter element after disassembly. The bracket is fixed to the chassis with bolts. After removing the bracket, the filter element can be removed by removing the retaining clip, making replacement convenient and improving the practicality of the equipment. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the internal structural layout of the chassis of the present invention;

[0027] Figure 3 This is a schematic diagram of the laser cutting mechanism structure of the present invention;

[0028] Figure 4 For the present invention Figure 2 Partial schematic diagram of the structure at point A;

[0029] Figure 5 This is a schematic diagram of the cleaning mechanism structure of the present invention;

[0030] Figure 6 This is a schematic diagram of the filter element and support structure of the present invention;

[0031] Figure 7 For the present invention Figure 6 Enlarged view of the structure at point B in the middle;

[0032] Figure 8 This is a schematic diagram of the motor structure of the present invention;

[0033] Figure 9 This is a schematic diagram of the gas detector structure of the present invention;

[0034] Figure 10 This is a schematic diagram of the bearing structure of the present invention.

[0035] In the picture:

[0036] 1. Chassis; 2. Laser cutting mechanism; 201. X-axis electric slide rail; 202. Y-axis electric slide rail; 203. Z-axis electric slide rail; 204. R-axis cutting machine; 3. Purification mechanism; 301. Micro motor; 302. Electric rotating disk; 303. Cleaning shaft; 304. Filter element; 305. Screw-type electric slide rail; 306. Screw sleeve; 307. Shaft retainer; 3071. Screw sleeve; 3072. Screw; 308. Bracket; 4. 401. Cleaning mechanism; 402. Cleaning fluid storage tank; 403. Box body; 404. Nozzle; 405. Motor; 406. Water inlet pipe; 407. Stirring shaft; 5. Mounting box body; 501. Second pipe; 502. Third pipe; 6. Partition plate; 7. Through pipe; 8. Electric slide rail; 9. Through hole; 10. Baffle plate; 11. First pipe; 12. Drainage trough; 13. Storage box; 14. Support plate; 15. Gas detector; 16. Pipe opening. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0038] Please see Figures 1-10The present invention provides the following implementation scheme: A four-axis CNC laser cutting equipment includes a chassis 1 and a laser cutting mechanism 2 disposed inside the chassis 1. The chassis 1 has a chamber, and a partition 6 is provided inside the chamber, dividing the chamber into a working area and a filtering area. A through pipe 7 is provided on the partition 6, connecting the working area and the filtering area. A purification mechanism 3 is provided inside the filtering area to purify the exhaust gas generated by the laser cutting mechanism 2. The filtering area is also provided with a cleaning mechanism 4 and a mounting box 5 to remove the filter material attached to the purification mechanism 3 by liquid cleaning. A storage box 13 is provided at the bottom of the chassis 1 for collecting the waste liquid after cleaning. An air pump is installed inside the mounting box 5 to draw the gas in the filtering area into the waste liquid for neutralization, secondary treatment, and then discharge. The purification mechanism 3 includes an electric rotating disk 302 and several drive units. Each drive unit is equipped with a filter element 304 for filtering exhaust gas. Each filter element 304 is arranged in a ring around the electric rotating disk 302, and one of the filter elements 304 is connected to... After filtering the exhaust gas on the pipe 7, the electric rotating disk 302 changes the position of the filter element 304 to replace it. The drive unit can change the distance between the two filter elements 304 and drive the filter element 304 to rotate. A cleaning shaft 303 is fixed at the center of the electric rotating disk 302. The drive unit makes the rotating filter element 304 contact the cleaning shaft 303 to clean the filter element 304 by wiping. The laser cutting mechanism 2 adopts a four-axis linkage structure, in which the X / Y axes are responsible for planar motion, and the Z axis... The height of the cutting head is controlled, and the R-axis realizes the rotary cutting of pipes or irregularly shaped workpieces. The laser cutting machine with a cutting head that can rotate 360° on the R-axis can complete the high-precision cutting of the processed parts without dead angles. When cutting metal materials, laser cutting will generate metal dust and acidic gas. The metal dust and acidic gas are introduced into the purification area through the pipe 7 by the air pump in the installation box 5. The metal dust is filtered by the filter element 304, and the acidic gas is filtered by the alkaline solution set in the cleaning fluid storage tank 401.

[0039] In this embodiment, the drive unit includes a lead screw type electric slide rail 305 and a micro motor 301. The lead screw type electric slide rail 305 has a lead screw sleeve 306, and the micro motor 301 is fixedly installed at one end of the lead screw sleeve 306. The output shaft of the micro motor 301 is fixedly connected to a retaining shaft 307, which fixes the filter element 304. The housing 1 is located inside the filtration area and a bracket 308 is fixedly installed. The bracket 308 is fixedly connected to the electric rotating disk 302. The lead screw type electric slide rails 305 are all fixed around the electric rotating disk 302. The retaining shaft 307 includes a threaded sleeve 3071 and a screw 3072, which are fitted together for fixation. The filter element 304 has a groove at its center that matches the retaining shaft 307. When the retaining shaft 307 fixes the filter element 304, the ends of the two are flush. The purification mechanism 3 is provided with support plates 14 on both sides. The partition plate 6, the two support plates 14 and the inner wall of the casing 1 form three isolated small chambers. The purification mechanism 3 is located in the middle small chamber. The other two small chambers are respectively equipped with the cleaning mechanism 4 and the mounting box 5. The filter element 304 connected to the through pipe 7 can be rotated and replaced by the electric rotating disc 302. The filter element 304 is replaced automatically, so that the equipment does not need to be replaced manually during long-term operation, which improves the processing efficiency and protects the workshop environment. The cleaning mechanism 4 includes a cleaning liquid storage tank 401 and a box 402. The cleaning liquid storage tank 401 contains liquid. The cleaning liquid storage tank 401 and the box 402 are interconnected. The bottom of the box 402 is also connected to the cleaning liquid storage tank 401.

[0040] In this embodiment, the purification mechanism 3 also includes a motor 404, which is fixed to the inner wall of the housing 1. The output shaft of the motor 404 rotates through the bottom of the housing 402. One end of the output shaft of the motor 404 is fixedly connected to a stirring shaft 406 inside the housing 402. A nozzle 403 is provided on the outside of the housing 402, with the nozzle of the nozzle 403 aligned with the cleaning shaft 303. Pipe openings 16 are provided at both the top and bottom of one side of the storage box 13. The upper pipe opening 16 is connected to an exhaust pipe, and the other pipe opening 16 is connected to a drain pipe. The storage tank 13 is also equipped with a gas detector 15. When the exhaust gas is discharged into the storage tank 13 and neutralized with the waste liquid to the set index, it is discharged to the outside through the pipe port 16. The alkaline solution after subsequent rinsing is stored in the storage tank 13 through the drainage tank 12, while the filtered high-temperature gas is discharged into the alkaline solution through the third pipe 502. After the high-temperature acidic gas and the alkaline solution undergo a chemical reaction to neutralize each other, the gas detector 15 can detect the acid content in the exhaust gas. After the emission standard is met, it is discharged through the pipe port 16 set at the top.

[0041] In this embodiment, a drainage trough 12 is provided in the filtration area, and the drainage trough 12 is connected to a first pipe 11. The first pipe 11 is connected to the inside of the storage box 13. The upper and lower ends of the mounting box 5 are respectively connected to a second pipe 501 and a third pipe 503. The end of the second pipe 501 is located in the middle small cavity, and the end of the third pipe 502 is located at the bottom of the storage box 13. An electric slide rail 8 is fixedly connected to one side of the two partitions 6. A baffle 10 is installed on the electric slide rail 8, and a through hole 9 is opened in the middle small cavity on the inner wall of the machine box 1 to allow air inside the small cavity to circulate with the outside. The electric slide rail 8 drives the baffle 10 to move and block the through hole 9. When the equipment is idle, the filter element 304 is cleaned and air is allowed to pass through the through hole 9 to prevent the growth of mold.

[0042] In this embodiment, the laser cutting mechanism 2 includes an X-axis electric slide rail 201, a Y-axis electric slide rail 202, a Z-axis electric slide rail 203, and an R-axis cutter 204. The X-axis electric slide rail 201 is installed on the inner wall of the housing 1. The Y-axis electric slide rail 202 is fixed to the guide block of the X-axis electric slide rail 201. The Z-axis electric slide rail 203 is installed on the guide block of the Y-axis electric slide rail 202. The R-axis cutter 204 is connected to the guide block of the Z-axis electric slide rail 203.

[0043] Working principle: The laser cutting mechanism 2 adopts a four-axis (X / Y / Z / R) linkage structure. The X / Y axes are responsible for planar motion, the Z axis controls the height of the cutting head, and the R axis realizes the rotary cutting of pipes or irregularly shaped workpieces. The R axis uses a laser cutting machine with a cutting head that can rotate 360° to complete the high-precision cutting of the processed parts without dead angles. When cutting metal materials, laser cutting will generate metal dust and acidic gas. The air pump in the installation box 5 will bring the metal dust and acidic gas into the purification area through the pipe 7. The metal dust will be filtered by the filter element 304, and the acidic gas will be filtered by the alkaline solution set in the cleaning fluid storage tank 401.

[0044] Due to the low corrosiveness of alkaline solutions to most metals, corrosion to the internal structure of the casing 1 is reduced. Furthermore, alkaline solutions can saponify animal and vegetable oils, neutralizing acidic dirt. When acidic gases pass through filter element 304, filter element 304 absorbs some of the acidic gases, and acidic dirt will form inside after a certain period of time. Alkaline solutions have high permeability, and combined with the high-pressure rinsing of nozzle 403, they can thoroughly remove metal powder blockages inside filter element 304 while neutralizing the acidic dirt inside the filter element. Therefore, the alkaline solution, through mechanisms such as chemical decomposition, physical penetration, and ion chelation, has the advantages of high-efficiency cleaning, structural protection, environmental protection, and energy saving when cleaning metal powder filter elements.

[0045] The alkaline solution after subsequent rinsing is stored in the storage tank 13 through the drainage tank 12, while the filtered high-temperature gas is discharged into the alkaline solution through the third pipe 502. After the high-temperature acidic gas and the alkaline solution undergo a chemical reaction to neutralize each other, the gas detector 15 can detect the acid content in the exhaust gas. After the emission standard is met, it is discharged through the pipe port 16 set at the top. The pipe port 16 at the bottom is used to connect to the water pump to discharge the waste liquid, thus completing the purification of the gas and ensuring the working environment of the workshop.

[0046] After a certain period of use, during the interval between cutting the next workpiece, the filter element 304 connected to the through pipe 7 can be rotated and replaced by the electric rotating disc 302. The filter element 304 can be replaced automatically. The equipment is equipped with a large number of filter elements 304, which can be replaced automatically. This eliminates the need for manual filter element replacement during long-term operation, improving processing efficiency and protecting the workshop environment.

[0047] After the filter element 304 absorbs a certain amount of metal powder and needs to be replaced and cleaned, the filter element 304 connected to the pipe 7 is rotated and repositioned by the electric rotating disc 302. Then, the filter element 304 located on the outside is moved inward by the screw-type electric slide rail 305, approaching the cleaning shaft 303. Then, the micro motor 301 drives the filter element 304 to rotate and rub against the protrusions on the outside of the cleaning shaft 303. At the same time, the cleaning fluid storage tank 401 puts a high-concentration alkaline solution into the tank 402, mixes in a certain amount of clean water and stirs. Driven by the nozzle 403, the cleaning fluid is sprayed onto the filter element 304. The filter element 304 rubs against the cleaning shaft 303 to clean the metal powder attached to it. Then, the filter element 304 is reset and rotated by the micro motor 301 to shake out the internal water. The baffle 10 is moved downward by the electric slide rail 8 to ventilate and dry the filter element 304. The filter element 304 can be automatically cleaned and replaced without manual input.

[0048] like Figure 1 As shown, the housing 1 is equipped with a disassembly plate, which allows the filter element 304 to be replaced directly after disassembly. The bracket 308 is fixed to the housing 1 with bolts. After removing the bracket 308, the retaining shaft 307 can be removed to take out the filter element, making replacement convenient and improving the practicality of the equipment.

[0049] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

Claims

1. A four-axis CNC laser cutting equipment, comprising a chassis and a laser cutting mechanism disposed inside the chassis, characterized in that: The chassis has an internal chamber with a partition dividing it into a working area and a filtration area. A pipe connects the working area and the filtration area. The filtration area contains a purification mechanism to purify the exhaust gas generated by the laser cutting mechanism. The filtration area also includes a cleaning mechanism and a mounting box. The cleaning mechanism removes filter material adhering to the purification mechanism using an alkaline solution. The bottom of the chassis has a storage box for collecting the waste liquid after cleaning. The mounting box contains an air pump that draws the gas from the filtration area into the waste liquid for neutralization, secondary treatment, and then discharge. The purification mechanism includes an electric rotating disc and several drive units. Each drive unit is equipped with a filter element for filtering exhaust gas. Each filter element is arranged in a ring around the electric rotating disc. One of the filter elements is connected to a through pipe. After filtering the exhaust gas, the electric rotating disc changes the position of the filter element to replace it. The drive unit can change the distance between two filter elements and can drive the filter element to rotate. A cleaning shaft is fixed at the center of the electric rotating disc. The drive unit causes the rotating filter element to contact the cleaning shaft to clean the filter element by wiping. The storage box has pipe openings at both the top and bottom of one side. The upper pipe opening is connected to an exhaust pipe, and the other pipe opening is connected to a drain pipe. A gas detector is also installed inside the storage box. When the exhaust gas is discharged into the storage box and neutralized with the waste liquid to the set index, it is discharged to the outside through the pipe opening.

2. The four-axis CNC laser cutting equipment according to claim 1, characterized in that: The drive unit includes a lead screw type electric slide rail and a micro motor. The lead screw type electric slide rail has a lead screw sleeve on the lead screw. A micro motor is fixedly installed at one end of the lead screw sleeve. The output shaft of the micro motor is fixedly connected to a retaining shaft, and the retaining shaft fixes the filter element.

3. A four-axis CNC laser cutting device according to claim 2, characterized in that: The chassis is fixedly installed with a bracket inside the filtration area. The bracket is fixedly connected to the electric rotating disk. The screw-type electric slide rails are all fixed around the electric rotating disk. The retaining shaft includes a threaded sleeve and a screw rod, which are fitted together for fixation. A groove matching the retaining shaft is provided at the center of the filter element. When the retaining shaft fixes the filter element, the ends of the two are flush.

4. A four-axis CNC laser cutting device according to claim 1, characterized in that: The purification mechanism is provided with support plates on both sides. The partition plate, the two support plates and the inner wall of the chassis form three mutually isolated small chambers. The purification mechanism is located in the middle small chamber, and the other two small chambers are respectively equipped with cleaning mechanisms and mounting boxes. The cleaning mechanism includes a cleaning fluid storage tank and a housing. The cleaning fluid storage tank contains liquid, and the cleaning fluid storage tank and the housing are interconnected. A water inlet pipe is also connected to the bottom of the housing.

5. A four-axis CNC laser cutting device according to claim 4, characterized in that: The purification mechanism also includes a motor, which is fixed to the inner wall of the housing. The output shaft of the motor rotates through the bottom of the housing. An agitator shaft is fixedly connected to one end of the output shaft inside the housing. A nozzle is provided on the outside of the housing, and the nozzle nozzle is aligned with the cleaning shaft.

6. A four-axis CNC laser cutting device according to claim 5, characterized in that: A drainage trough is provided in the filtration area, and the drainage trough is connected to a first pipe, which is connected to the inside of the storage box.

7. A four-axis CNC laser cutting device according to claim 6, characterized in that: The upper and lower ends of the mounting box are respectively connected to the second pipe and the third pipe. The end of the second pipe is located inside the small cavity in the middle, and the end of the third pipe is located at the bottom of the storage box.

8. A four-axis CNC laser cutting device according to claim 4, characterized in that: An electric slide rail is fixedly connected to one side of each of the two partitions. A baffle is installed on the electric slide rail, and a through hole is opened in the small cavity located in the middle of the inner wall of the chassis to allow air inside the small cavity to circulate with the outside. The electric slide rail drives the baffle to move and block the through hole.

9. A four-axis CNC laser cutting device according to claim 2, characterized in that: The laser cutting mechanism includes an X-axis electric slide rail, a Y-axis electric slide rail, a Z-axis electric slide rail, and an R-axis cutting machine. The X-axis electric slide rail is installed on the inner wall of the machine housing. The Y-axis electric slide rail is fixed to the guide block of the X-axis electric slide rail. The Z-axis electric slide rail is installed on the guide block of the Y-axis electric slide rail. The R-axis cutting machine is connected to the guide block of the Z-axis electric slide rail.

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