A high-performance numerical control engraving and milling machine spraying device

Abstract

The utility model discloses a kind of high-performance numerical control engraving and milling machine with spraying device, including processing table and the spraying support box body of being set in the bottom of processing table, the top of processing table is provided with inverted U type frame, further including movable top seat, the outer side of screw rod in the one side of inverted U type frame of movable top seat is installed, and the bottom of movable top seat is provided with fixed support pipe, the inside of movable top seat is provided with electric lifter, the output end of electric lifter is through fixed support pipe and is connected with engraving and milling head.The utility model is through the movable round table with inner tooth ring being set outside fixed support pipe, and cooperate with the meshing of micro motor and driving gear, movable round table can realize 360 ° horizontal direction rotation, so that spray pipe and shower head can be flexibly adjusted in horizontal direction, greatly expand the spraying coverage, ensure that workpiece each part can be evenly received liquid during engraving and milling.

Description

Technical Field

[0001] This utility model relates to the technical field of spray devices for CNC engraving and milling machines, specifically a spray device for high-performance CNC engraving and milling machines. Background Technology

[0002] CNC milling machines, as high-precision machining equipment, are widely used in mold manufacturing, precision parts processing, and aerospace component production. Their machining accuracy and efficiency directly depend on the performance of the cutting tools, feed parameters, and the coordinated operation of auxiliary systems. Among these, the spraying device, as a core auxiliary component, mainly undertakes key functions such as cooling the cutting area, lubricating the contact surface between the cutting tool and the workpiece, and flushing away chips. It is of great significance for reducing tool wear, preventing workpiece thermal deformation, and ensuring the quality of the machined surface.

[0003] Existing CNC milling machine spraying devices generally suffer from the following technical defects: Traditional spraying devices mostly use fixed nozzles or single-direction adjustment structures, with fixed spraying angles and ranges, which cannot be adjusted in real time with the movement of the milling head. When machining complex curved surfaces, deep cavities, or irregularly shaped workpieces, spraying blind spots are prone to occur, resulting in insufficient cooling and lubrication in local cutting areas. This not only affects machining accuracy but also accelerates tool wear and shortens tool life.

[0004] During high-speed machining, the spatial position and posture of the milling head change dynamically. However, the existing spraying device lacks a linkage control mechanism with the milling head. The adjustment of the spraying head position lags behind the movement of the milling head, resulting in misalignment between the spraying focus and the cutting area, reducing cooling and lubrication efficiency, and even causing scratches on the workpiece surface due to the inability to flush away chips in time.

[0005] Although some spray systems are equipped with recovery mechanisms, their filtration systems are simple, mostly single-stage filters, which are insufficient to effectively remove fine metal debris, oil, and processing dust from the coolant. Residual impurities not only contaminate the circulating coolant, causing nozzle blockage and secondary scratches on workpieces, but also increase production costs due to frequent coolant replacements, failing to meet energy conservation and environmental protection requirements. Utility Model Content

[0006] The purpose of this invention is to provide a high-performance spraying device for CNC engraving and milling machines to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a high-performance CNC engraving and milling machine spraying device, comprising a processing table and a spraying support box disposed at the bottom of the processing table, the top of the processing table being provided with an inverted U-shaped frame, and further comprising... The movable top seat is installed on the outside of the lead screw on one side of the inverted U-shaped frame, and a fixed support tube is provided at the bottom of the movable top seat. An electric lifter is provided on the inner side of the movable top seat, and the output end of the electric lifter passes through the fixed support tube and is connected to a milling head. The fixed support tube has a movable truncated cone with an internal gear ring on its inner side mounted on its outer side via a bearing. A micro motor is also provided on one side of the fixed support tube. The output end of the micro motor is equipped with a drive gear that meshes with the internal gear ring. A spray pipe is installed on the outer wall of the movable truncated cone. A spray head is installed at the bottom of the spray pipe via a rotating shaft. The machining table below the milling head is equipped with a movable support plate, and a recycling tank is provided on the outside of the movable support plate. The top of the spray support box is equipped with a filter box that is connected to the recycling tank through a return hole.

[0008] Furthermore, one side of the inverted U-shaped frame is provided with an adjustment groove for accommodating the lead screw. Both sides of the inverted U-shaped frame above and below the adjustment groove are provided with guide rails that match the movable top seat. The outer wall of the inverted U-shaped frame is provided with a servo motor, and the output end of the servo motor is connected to one end of the lead screw.

[0009] Furthermore, the bottom of the movable truncated cone is provided with an electric push rod, and the top of the electric push rod is movably connected to the side wall of the spray head. Both ends of the electric push rod are provided with movable shafts.

[0010] Furthermore, a circulation pump is provided on the outer wall of the spray support box, the input pipe of the circulation pump extends into the interior of the spray support box, and the output end of the circulation pump is connected to the spray pipe through an inlet pipe, a diverter pipe and a spring hose.

[0011] Furthermore, an electromagnet is installed at the center of the top inner side of the filter box, and an annular space is provided inside the filter box outside the electromagnet.

[0012] Furthermore, a coarse filter screen is evenly laid at the bottom of the inside of the recycling tank, and the return holes are inclined, with the output ends of the return holes all connected to the annular space outside the electromagnet.

[0013] Furthermore, the filter box below the electromagnet is also equipped with a fine filter screen, an activated carbon filter plate, and a quartz sand filter plate in sequence.

[0014] Furthermore, a condenser is installed inside the spray support box, and a PLC controller is installed on the outer wall of the spray support box.

[0015] This utility model provides a high-performance spray device for CNC engraving and milling machines, which has significant advantages over existing technologies, specifically in the following aspects: 1. By setting a movable truncated cone with an internal gear ring on the outside of the fixed support tube, and cooperating with the meshing of a micro motor and drive gear, the movable truncated cone can achieve 360° horizontal rotation, allowing the spray pipe and spray head to be flexibly adjusted in the horizontal direction, greatly expanding the spray coverage area and ensuring that all parts of the workpiece are evenly sprayed during the engraving and milling process. The introduction of the electric push rod allows the spray pipe to be adjusted in the vertical direction as well, further improving the flexibility and uniformity of the spray. The multi-dimensional adjustment capability effectively solves the problem of uneven spraying in the existing technology, and improves the processing quality and efficiency.

[0016] 2. The movable truncated cone is located on the outside of the fixed support tube and can be adjusted according to the movement of the milling head, ensuring that the spray head is always matched with the position of the milling head, avoiding processing defects caused by inadequate spraying, and significantly improving the accuracy and stability of the milling process.

[0017] 3. This utility model is equipped with a filter box, which is connected to the recovery tank through a return hole, so that the spray liquid can be recycled. The coarse filter screen laid at the bottom of the recovery tank and the fine filter screen, activated carbon filter plate and quartz sand filter plate inside the filter box constitute a multi-stage filtration system, which effectively removes impurities in the spray liquid and ensures the cleanliness of the circulating liquid. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle; Figure 3 This is a schematic diagram of the internal structure of the filter box of this utility model; Figure 4 This is a schematic diagram of the internal structure of the movable frustum of this utility model; In the diagram: 1. Circulating pump; 2. Spray support box; 3. Machining table; 4. Recovery tank; 5. Inlet pipe; 6. Diverter pipe; 7. Adjustment tank; 8. Guide rail; 9. Electric lifter; 10. Movable top seat; 11. Lead screw; 12. Servo motor; 13. Inverted U-shaped frame; 14. Movable bearing plate; 15. Coarse filter screen; 16. Return hole; 17. Filter box; 18. Spring hose; 19. Spray pipe; 20. Internal gear ring; 21. Rotating shaft; 22. Spray head; 23. Electric push rod; 24. Milling head; 25. Fixed support pipe; 26. Drive gear; 27. Micro motor; 28. Movable truncated cone; 29. ​​Bearing; 30. Electromagnet; 31. Fine filter screen; 32. Activated carbon filter plate; 33. Quartz sand filter plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0021] Please see Figure 1-4 This utility model provides an embodiment of a high-performance CNC engraving and milling machine spraying device, including a processing table 3 and a spraying support box 2 disposed at the bottom of the processing table 3. An inverted U-shaped frame 13 is disposed on the top of the processing table 3. It also includes... The movable top seat 10 is installed on the outside of the lead screw 11 on one side of the inverted U-shaped frame 13. An adjustment groove 7 for accommodating the lead screw 11 is provided on one side of the inverted U-shaped frame 13. Guide rails 8 matching the movable top seat 10 are provided on both the upper and lower sides of the inverted U-shaped frame 13. A servo motor 12 is provided on the outer wall of the inverted U-shaped frame 13. The output end of the servo motor 12 is connected to one end of the lead screw 11.

[0022] The bottom of the movable top seat 10 is provided with a fixed support tube 25, and the inner side of the movable top seat 10 is provided with an electric lifter 9. The output end of the electric lifter 9 passes through the fixed support tube 25 and is connected to the engraving head 24.

[0023] The processing table 3 is located at the top of the device and is used to place the workpiece to be processed. The bottom of the processing table 3 is equipped with a spray support box 2, which is mainly used to accommodate the spray system and its related components to ensure that the spray liquid can be sprayed evenly onto the surface of the workpiece.

[0024] The inverted U-shaped frame 13 is fixed to the top of the processing table 3 and is in the shape of an inverted U, providing a stable support structure. An adjustment groove 7 is provided on one side of the inverted U-shaped frame 13 to accommodate the lead screw 11. Guide rails 8 that match the movable top seat 10 are provided on both the upper and lower sides of the inverted U-shaped frame 13. The guide rails 8 ensure that the movable top seat 10 moves smoothly on the inverted U-shaped frame 13.

[0025] The movable top seat 10 is installed on the outside of the lead screw 11 on one side of the inverted U-shaped frame 13. The movable top seat 10 moves up and down by rotating the lead screw 11. A fixed support tube 25 is provided at the bottom of the movable top seat 10 to support the electric lifter 9 and the milling head 24.

[0026] The servo motor 12 is fixed on the outer wall of the inverted U-shaped frame 13, and its output end is connected to one end of the lead screw 11. The servo motor 12 drives the lead screw 11 to rotate, thereby driving the movable top seat 10 to move up and down on the guide rail 8, so as to achieve precise position control of the engraving and milling head 24.

[0027] An electric lifter 9 is provided on the inner side of the movable top seat 10. The output end of the electric lifter 9 passes through the fixed support tube 25 and is connected to the milling head 24. The electric lifter 9 is used to control the up and down movement of the milling head 24 to ensure that the milling head 24 can accurately process the workpiece.

[0028] A movable truncated cone 28 with an internal gear ring 20 is movably mounted on the outer side of the fixed support tube 25 via a bearing 29. A micro motor 27 is also provided on one side of the fixed support tube 25. A drive gear 26 that meshes with the internal gear ring 20 is installed at the output end of the micro motor 27. A spray pipe 19 is installed on the outer wall of the movable truncated cone 28. A spray head 22 is installed at the bottom of the spray pipe 19 via a rotating shaft 21.

[0029] The bottom of the movable truncated cone 28 is provided with an electric push rod 23, and the top of the electric push rod 23 is movably connected to the side wall of the spray head 22. Both ends of the electric push rod 23 are provided with movable shafts.

[0030] The movable frustum 28 is installed on the outside of the fixed support tube 25 and is movably connected by the bearing 29. The bearing 29 is a high-precision rolling bearing to ensure that the movable frustum 28 can rotate smoothly. The inner side of the movable frustum 28 is provided with an internal gear ring 20. The internal gear ring 20 is made of hard alloy and has high wear resistance.

[0031] A micro motor 27 is installed on one side of the fixed support tube 25. The micro motor 27 is a DC motor. A drive gear 26 is installed at the output end of the micro motor 27. The teeth of the drive gear 26 mesh with the internal gear ring 20. Driven by the micro motor 27, the drive gear 26 drives the internal gear ring 20 to rotate, thereby realizing the rotational movement of the movable truncated cone 28.

[0032] The outer wall of the movable truncated cone 28 is equipped with a spray pipe 19. The spray pipe 19 has a cylindrical structure. The bottom of the spray pipe 19 is equipped with a spray head 22 through a rotating shaft 21. The spray head 22 has a spherical structure and multiple spray holes on its surface to ensure uniform spraying.

[0033] The bottom of the movable truncated cone 28 is equipped with an electric push rod 23. The top of the electric push rod 23 is movably connected to the side wall of the spray head 22 by a movable hinge to ensure that the spray head 22 can swing within a certain range. Both ends of the electric push rod 23 are equipped with movable shafts to ensure that the electric push rod 23 moves flexibly.

[0034] The machining table 3 below the milling head 24 is equipped with a movable support plate 14. A recycling tank 4 is provided on the outside of the movable support plate 14. The top of the spray support box 2 is equipped with a filter box 17 that is connected to the recycling tank 4 through a return hole 16.

[0035] An electromagnet 30 is installed at the center of the top inside the filter box 17, and an annular space is provided inside the filter box 17 outside the electromagnet 30.

[0036] The bottom of the recycling tank 4 is evenly covered with a coarse filter screen 15, and the return holes 16 are set at an angle. The output end of the return holes 16 is connected to the annular space outside the electromagnet 30.

[0037] Inside the filter box 17 below the electromagnet 30, there are also a fine filter screen 31, an activated carbon filter plate 32, and a quartz sand filter plate 33 arranged in sequence.

[0038] The milling head 24 is located above the machining table 3 and is used to engrave and mill the workpiece. The machining table 3 is equipped with a movable support plate 14, which can be moved to adapt to different workpieces. The outer side of the movable support plate 14 is equipped with a recycling tank 4 for collecting waste materials and coolant generated during the processing.

[0039] The spray support box 2 is located on one side of the processing table 3. A filter box 17 is installed at the top inside. The filter box 17 is connected to the recovery tank 4 through the return hole 16 to form a closed circulation system. The return hole 16 is set at an angle, and its output end is connected to the annular space outside the electromagnet 30 to ensure that waste and coolant can smoothly enter the filter box 17.

[0040] An electromagnet 30 is installed at the center of the top inside the filter box 17. The function of the electromagnet 30 is to adsorb metal particles in the waste through a magnetic field, thereby improving the filtration effect. An annular space is provided inside the filter box 17 outside the electromagnet 30. This annular space is used to contain the waste and coolant flowing in from the return hole 16.

[0041] The bottom of the recovery tank 4 is evenly covered with a coarse filter screen 15. The coarse filter screen 15 is mainly used to filter larger waste particles and prevent them from entering the filter box 17. The inclined setting of the return hole 16 allows the waste and coolant to pass through the coarse filter screen 15 for preliminary filtration when flowing into the filter box 17.

[0042] Inside the filter box 17 below the electromagnet 30, there are sequentially arranged fine filter screen 31, activated carbon filter plate 32 and quartz sand filter plate 33. Fine filter screen 31 is used to further filter fine waste particles, activated carbon filter plate 32 is used to adsorb organic matter in waste, and quartz sand filter plate 33 is used to remove suspended solids and impurities in waste.

[0043] A circulation pump 1 is installed on the outer wall of the spray support box 2. The input pipe of the circulation pump 1 extends into the interior of the spray support box 2, and the output end of the circulation pump 1 is connected to the spray pipe 19 through the liquid inlet pipe 5, the diversion pipe 6 and the spring hose 18.

[0044] The spray support box 2 is equipped with a condenser inside, and a PLC controller is installed on the outer wall of the spray support box 2.

[0045] The overall structure of the spray support box 2 includes a rectangular box made of high-strength stainless steel, which has good corrosion resistance and load-bearing capacity. A circulation pump 1 is installed on the outer wall of the box 2, and the input pipe of the circulation pump 1 extends into the interior of the spray support box 2 to ensure that liquid can be drawn from the inside of the box.

[0046] The circulating pump 1 is fixed to the outer wall of the spray support box 2. It is a high-performance centrifugal pump with efficient liquid delivery capability. The inlet pipe of the circulating pump 1 extends into the box 2 through a reserved hole in the box wall, ensuring that liquid can be drawn from the bottom of the box. The output end of the circulating pump 1 is connected to the distribution pipe 6 through the inlet pipe 5. The distribution pipe 6 then distributes the liquid to the spring hose 18, and finally connects to the spray nozzle 19 through the spring hose 18.

[0047] The spray support box 2 is equipped with a condenser. The condenser is made of high-efficiency heat exchange material and is located in the upper part of the box. The function of the condenser is to condense the steam in the box into liquid and return it to the bottom of the box to form a closed circulation system. The inlet and outlet water pipes of the condenser are connected to the external cooling water source through the reserved holes on the box wall to ensure the condensation effect.

[0048] A PLC controller is installed on the outer wall of the spray support box 2. The PLC controller adopts a modular design and has powerful data processing and logic control capabilities. The PLC controller monitors parameters such as liquid level and temperature in the box in real time through sensors, and automatically controls the start and stop of the circulating pump 1, the working status of the condenser, and the spraying time of the spray pipe according to the preset program.

[0049] In this embodiment of the application, the coolant level inside the spray support box 2 is first checked to ensure that it meets the processing requirements. At the same time, it is confirmed that the circulation pump 1, PLC controller, condenser and various electrical components are connected normally and without faults. Then, the workpiece to be processed is placed on the movable support plate 14 inside the processing table 3.

[0050] The PLC controller on the outer wall of the spray support box 2 inputs the processing parameters of the milling head 24 and sets the spray-related parameters, including the coolant flow rate of the circulating pump 1, the target temperature control range of the condenser, and the initial spray angle and coverage of the spray head 22.

[0051] Start the servo motor 12. The output of the servo motor 12 drives the lead screw 11 to rotate in the adjustment groove 7 of the inverted U-shaped frame 13. This causes the movable top seat 10, which is sleeved on the outside of the lead screw 11, to move smoothly along the guide rails 8 on both sides of the adjustment groove 7 until the fixed support tube 25 at the bottom of the movable top seat 10 moves the milling head 24 directly above the workpiece processing area. Then, start the electric lift 9. The output of the electric lift 9 passes through the fixed support tube 25 and drives the milling head 24 to descend, adjusting it to the initial processing height that matches the workpiece surface.

[0052] The micro motor 27 is started by the PLC controller. The output of the micro motor 27 drives the drive gear 26 to rotate. Since the drive gear 26 meshes with the internal gear ring 20 on the inner side of the movable truncated cone 28, and the movable truncated cone 28 is movably installed on the outer side of the fixed support tube 25 through the bearing 29, the internal gear ring 20 rotates with the drive gear 26, driving the movable truncated cone 28 to rotate horizontally around the fixed support tube 25, thereby adjusting the horizontal direction of the spray pipe 19 on the outer wall of the movable truncated cone 28. At the same time, the electric push rod 23 is started. The two ends of the electric push rod 23 are movably connected to the bottom of the movable truncated cone 28 and the side wall of the spray head 22 through the movable shaft, respectively. When the electric push rod 23 extends and retracts, it drives the spray head 22 to rotate around the bottom of the spray pipe 19 through the rotating shaft 21 until the spray hole of the spray head 22 is aligned with the workpiece to be cut area, thus completing the precise positioning of the spray range.

[0053] The circulating pump 1 is started by the PLC controller. The circulating pump 1 draws coolant from the inside of the spray support box 2 through the input pipe. The coolant is delivered to the spray pipe 19 through the inlet pipe 5, the diverter pipe 6, and the spring hose 18 in sequence, and finally sprayed onto the surface of the workpiece from the spray nozzle 22. After the spraying is stable, the milling head 24 is started. The milling head 24 performs milling on the workpiece according to the preset parameters. During the processing, the PLC controller monitors the temperature of the cutting area in real time and maintains the temperature of the coolant in the spray support box 2 by controlling the operation of the condenser to avoid thermal deformation of the workpiece.

[0054] If the position of the milling head 24 needs to be adjusted during processing, the PLC controller synchronously controls the servo motor 12 to drive the lead screw 11 to move the movable top seat 10 along the guide rail 8, or controls the electric lifter 9 to lift the milling head 24. At this time, the micro motor 27 synchronously drives the movable round table 28 to rotate, and the electric push rod 23 synchronously adjusts the angle of the spray head 22 to ensure that the spray head 22 always moves with the milling head 24, so that the coolant continuously covers the cutting area and avoids the occurrence of spray blind spots.

[0055] After use, the coolant carries the chips generated during processing and flows along the surface of the movable support plate 14 to the recovery tank 4 on its outer side. First, it is filtered by the coarse filter screen 15 laid at the bottom of the recovery tank 4 to remove larger chips. The filtered coolant and fine chips flow through the inclined return holes 16 into the annular space of the filter box 17 at the top of the spray support box 2. At this time, the electromagnet 30 at the center of the top inside the filter box 17 is energized to adsorb metal chips in the coolant. Then the coolant continues to flow downward and passes through the fine filter screen 31 (filtering fine particles), the activated carbon filter plate 32 (adsorbing organic impurities), and the quartz sand filter plate 33 (removing suspended solids) in the filter box 17 in sequence. Finally, the purified coolant flows back into the spray support box 2 to achieve recycling.

[0056] After the workpiece is processed, first stop the milling head 24. After the milling head 24 is completely still, turn off the circulation pump 1 to stop the spraying. Then turn off the electromagnet 30, clean the metal chips adsorbed on its surface, and take out the processed workpiece from the movable support plate 14. Clean the chips and residues remaining on the coarse filter screen 15 in the recovery tank 4, and check the contamination of the fine filter screen 31, activated carbon filter plate 32, and quartz sand filter plate 33 in the filter box 17. If the filter media is blocked or saturated, replace it. Finally, turn off the PLC controller and the main power supply of the equipment to complete the entire processing flow.

[0057] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0058] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0059] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0060] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high-performance CNC milling machine spraying device, comprising a processing table (3) and a spraying support box (2) disposed at the bottom of the processing table (3), wherein an inverted U-shaped frame (13) is disposed on the top of the processing table (3), characterized in that: Also includes The movable top seat (10) is installed on the outside of the lead screw (11) on one side of the inverted U-shaped frame (13), and a fixed support tube (25) is provided at the bottom of the movable top seat (10). An electric lifter (9) is provided on the inner side of the movable top seat (10). The output end of the electric lifter (9) passes through the fixed support tube (25) and is connected to the milling head (24). The fixed support tube (25) has a movable truncated cone (28) with an internal gear ring (20) on its inner side mounted on its outer side via a bearing (29). A micro motor (27) is also provided on one side of the fixed support tube (25). A drive gear (26) that meshes with the internal gear ring (20) is installed at the output end of the micro motor (27). A spray pipe (19) is installed on the outer wall of the movable truncated cone (28). A spray head (22) is installed at the bottom of the spray pipe (19) via a rotating shaft (21). The machining table (3) below the milling head (24) is provided with a movable support plate (14), and a recycling tank (4) is provided on the outside of the movable support plate (14). The top of the spray support box (2) is provided with a filter box (17) that is connected to the recycling tank (4) through a return hole (16).

2. The spraying device for a high-performance CNC engraving and milling machine according to claim 1, characterized in that: One side of the inverted U-shaped frame (13) is provided with an adjustment groove (7) for accommodating the lead screw (11). The inverted U-shaped frame (13) on both the upper and lower sides of the adjustment groove (7) is provided with a guide rail (8) matching the movable top seat (10). The outer wall of the inverted U-shaped frame (13) is provided with a servo motor (12). The output end of the servo motor (12) is connected to one end of the lead screw (11).

3. The spraying device for a high-performance CNC engraving and milling machine according to claim 1, characterized in that: The bottom of the movable truncated cone (28) is provided with an electric push rod (23), and the top of the electric push rod (23) is movably connected to the side wall of the spray head (22). Both ends of the electric push rod (23) are provided with movable shafts.

4. The spraying device for a high-performance CNC engraving and milling machine according to claim 1, characterized in that: The outer wall of the spray support box (2) is provided with a circulation pump (1). The input pipe of the circulation pump (1) extends into the interior of the spray support box (2), and the output end of the circulation pump (1) is connected to the spray pipe (19) through the liquid inlet pipe (5), the diversion pipe (6) and the spring hose (18).

5. The spraying device for a high-performance CNC engraving and milling machine according to claim 1, characterized in that: An electromagnet (30) is installed at the center of the top inner side of the filter box (17), and an annular space is provided inside the filter box (17) outside the electromagnet (30).

6. A spraying device for a high-performance CNC engraving and milling machine according to claim 1 or 5, characterized in that: The bottom of the recycling tank (4) is uniformly covered with a coarse filter screen (15), and the return hole (16) is inclined. The output end of the return hole (16) is connected to the annular space outside the electromagnet (30).

7. The spraying device for a high-performance CNC engraving and milling machine according to claim 5, characterized in that: Inside the filter box (17) below the electromagnet (30), a fine filter screen (31), an activated carbon filter plate (32), and a quartz sand filter plate (33) are arranged in sequence.

8. The spraying device for a high-performance CNC engraving and milling machine according to claim 1, characterized in that: The spray support box (2) is equipped with a condenser inside, and a PLC controller is installed on the outer wall of the spray support box (2).

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