A cooling liquid circulating purifier and numerical control machine tool

Abstract

The application provides a cooling liquid circulating purification device and a numerical control machine tool. The device comprises: a first purification tank comprising a tank body and a purification mechanism, cooling liquid flows into the tank body, the purification mechanism performs first filtration on the cooling liquid to remove floating oil and chip impurities on the surface of the cooling liquid; a second purification tank arranged below the first purification tank; the second purification tank is in communication with the first purification tank, the first filtered cooling liquid flows into the second purification tank, the second purification tank performs second filtration on the cooling liquid to filter out small chip impurities in the cooling liquid; and a third purification tank arranged below and on the side of the second purification tank; the third purification tank is in communication with the second purification tank, the second filtered cooling liquid flows into the third purification tank, and the third purification tank performs purification treatment on the cooling liquid by a chemical method.

Description

Technical Field

[0001] This application belongs to the field of CNC machine tool technology, and in particular relates to a coolant circulation and purification device and a CNC machine tool. Background Technology

[0002] CNC machine tools, short for numerical control machine tools, are automated machine tools equipped with a program control system. This control system logically processes programs with control codes or other symbolic instructions, decodes them, represents them with coded numbers, inputs them to the CNC device via an information carrier, and after processing, the CNC device issues various control signals to control the machine tool's movements. It automatically processes parts according to the shape and dimensions required by the drawings. The coolant plays a crucial role in the machining process, with main functions including cooling, lubrication, and rust prevention. The coolant effectively reduces cutting temperature, preventing workpiece deformation or damage due to overheating; simultaneously, lubricating components reduce frictional resistance, improve cutting efficiency, and extend tool life; furthermore, rust inhibitors protect the workpiece and machine tool from corrosion, ensuring machining accuracy and stable equipment performance.

[0003] However, in the current technology, when purifying coolant, the coolant is often stored first, and then processed using large equipment after a certain amount is collected. This method not only makes the coolant prone to odor, but also causes chemical changes during long-term storage, resulting in a reduction in the coolant's performance. Summary of the Invention

[0004] Purpose of the invention: In order to overcome the above deficiencies, the present invention provides a coolant circulation purification device and a CNC machine tool that overcomes or at least partially solves the above technical problems.

[0005] In a first aspect, this application provides a coolant circulation and purification device, the device comprising:

[0006] The first purification chamber includes a chamber body and a purification mechanism, wherein the purification mechanism is disposed at one end of the chamber body; wherein, coolant flows into the chamber body, and the purification mechanism performs a first filtration of the coolant to remove floating oil and shavings impurities from the surface of the coolant;

[0007] The second purification box is located below the first purification box; wherein the second purification box is connected to the first purification box, the coolant after the first filtration flows into the second purification box, and the second purification box performs a second filtration on the coolant to filter out fine chips and impurities in the coolant;

[0008] The third purification chamber is located to the side and below the second purification chamber; wherein, the third purification chamber is connected to the second purification chamber, the coolant after the second filtration flows into the third purification chamber, the third purification chamber purifies the coolant by chemical methods, and the third purification chamber can drive the purification mechanism to work.

[0009] Preferably, the device further includes:

[0010] A support frame is used to install the first purification box and the second purification box;

[0011] The purification mechanism includes:

[0012] Magnetic suction roller 6, which is rotatably installed on the left side of the inner wall of the first purification box 2;

[0013] The blocking roller 7 is located on top of the magnetic roller 6 and is rotatably mounted on the left side of the inner wall of the first purification box 2.

[0014] Collection box 8, which is installed on the left side of the first purification box 2;

[0015] Collection hopper 9 is installed on the top right side of the inner wall of collection box 8.

[0016] Preferably, a first motor 10 is installed on the back of the first purification box 2, a first gear 11 is installed at the output end of the first motor 10, and the first gear 11 is installed on the back of the magnetic suction roller 6. A second gear 12 is installed on the back of the first purification box 2, and the first gear 11 and the second gear 12 mesh with each other. The second gear 12 is installed on the back of the blocking roller 7.

[0017] Preferably, baffles 13 are installed on the front and rear sides of the top left side of the first purification box 2, a guide block 14 is installed on the top of the collection box 8, and the top of the guide block 14 is inclined. The bottom of the first purification box 2 is connected to the second purification box 3 through a first connecting pipe.

[0018] Preferably, the inner cavity of the second purification box 3 is provided with a movable plate 15, both sides of which extend to the outer side of the second purification box 3. A first baffle plate 16 is installed on the inner wall of the second purification box 3, and the movable plate 15 is slidably installed on the inner wall of the L-shaped first baffle plate 16. A first mounting groove 17 is provided on the front and rear sides of the right side of the movable plate 15. A first filter screen 18 is slidably installed on the inner wall of the first mounting groove 17, and a movable plate 19 is installed on the front and rear sides of the right side of the first filter screen 18.

[0019] Preferably, a collection cylinder 20 is inserted into the back of the third purification box 5. The top of the collection cylinder 20 has a placement opening 21, and an agitator 22 is installed on the inner wall of the collection cylinder 20. Several agitator 22s are provided. An installation cylinder 23 is sleeved on the surface of the agitator 22, and a connecting frame 24 is installed on the surface of the installation cylinder 23. An outer frame 25 is installed on the surface of the installation cylinder 23, and an agitator 26 is installed on the surface of the outer frame 25. A second installation groove 27 is opened on the surface of the connecting frame 24, and a mesh plate 28 is installed on the inner wall of the second installation groove 27.

[0020] Preferably, the surface of the mounting cylinder 23 is fitted with a plug-in block 29, the front side of the inner wall of the third purification box 5 is fitted with a mounting plate 30, and the plug-in block 29 is plugged into the mounting plate 30. The back side of the collection cylinder 20 is plugged into the mounting plate 30. The back side of the collection cylinder 20 is fitted with a rotating seat 31, and the back side of the plug-in block 29 extends to the surface of the rotating seat 31, and the plug-in block 29 is plugged into the third purification box 5.

[0021] Preferably, an inclined block 32 is installed at the bottom of the inner wall of the third purification box 5, an installation cover 33 is inserted into the top of the third purification box 5, and a lifting plate 34 is installed at the bottom of the installation cover 33. A filter bucket 35 is installed at the bottom of the lifting plate 34, and the filter bucket 35 is located to the left of the inclined block 32. A discharge pipe 36 located to the left of the filter bucket 35 is connected to the left side of the third purification box 5.

[0022] Preferably, the surface of the rotating seat 31 is provided with a semi-toothed ring 37, the plug block 29 is plugged into the semi-toothed ring 37, the back of the third purification box 5 is provided with an installation shaft 38, the surface of the installation shaft 38 is provided with a rotating part 39, and the back of the third purification box 5 is provided with a movable toothed plate 40.

[0023] The movable toothed plate 40 has a movable frame 41 installed on its front side, and a sealing gasket 42 installed on the back side of the movable frame 41. The sealing gasket 42 is in contact with the rear side of the inner wall of the third purification box 5. A movable rod 43 is rotatably installed on the front side of the movable frame 41, and a connecting rod 44 is installed on the surface of the movable rod 43. An extrusion cylinder 45 is sleeved on the surface of the movable rod 43, and the extrusion cylinder 45 is specifically a ring-shaped grid.

[0024] Secondly, this application also provides a CNC machine tool, which includes the apparatus as described above;

[0025] The first purification chamber of the device is connected to the coolant outlet of the CNC machine tool via a pipe; the third purification chamber of the device is connected to the coolant storage tank of the CNC machine tool via a pipe.

[0026] The beneficial effects of this application are as follows:

[0027] 1. By setting up a purification mechanism, the coolant used in the CNC machine tool can be discharged into the first purification tank, causing the oil in the coolant to float to the surface of the coolant. Through continuous transportation of the coolant, the floating oil on the surface enters the purification mechanism, thereby removing the floating oil from the coolant.

[0028] 2. By setting up a first motor, a first gear, a second gear, a baffle, and a guide block, the first motor can drive the second gear to rotate after starting. This facilitates the rotation of the magnetic suction roller and the blocking roller by the first and second gears. The magnetic suction roller can then attract metal shavings in the floating oil. As the magnetic suction roller rotates, the guide block can scrape off the metal shavings on the surface of the magnetic suction roller, thereby collecting the metal shavings. The baffle can also block the flowing floating oil. Attached Figure Description

[0029] Figure 1 This is a perspective view provided by an embodiment of the present invention;

[0030] Figure 2 A three-dimensional structural diagram of the first purification box provided for an embodiment of the present invention;

[0031] Figure 3 A three-dimensional rear view structural diagram of the first purification box provided for an embodiment of the present invention;

[0032] Figure 4 A three-dimensional cross-sectional structural diagram of the third purification box provided for an embodiment of the present invention;

[0033] Figure 5 A side view of the three-dimensional cross-sectional structure of the third purification box provided for an embodiment of the present invention;

[0034] Figure 6 A partial three-dimensional structural schematic diagram of the movable plate from a three-dimensional side view provided for an embodiment of the present invention;

[0035] Figure 7 A schematic diagram of the main cross-sectional structure of the third purification box provided for an embodiment of the present invention;

[0036] Figure 8 A rear view of the three-dimensional cross-section of the third purification box provided for an embodiment of the present invention;

[0037] Figure 9 A schematic diagram of the three-dimensional structure of the external frame provided for an embodiment of the present invention;

[0038] Figure 10 A schematic diagram of the three-dimensional structure of the collection tube provided for an embodiment of the present invention;

[0039] Figure 11This is a three-dimensional rear view structural diagram of the fixed base provided in an embodiment of the present invention;

[0040] In the diagram: 1. Support frame; 2. First purification box; 3. Second purification box; 4. Support plate; 5. Third purification box; 6. Magnetic roller; 7. Blocking roller; 8. Collection box; 9. Collection hopper; 10. First motor; 11. First gear; 12. Second gear; 13. Baffle plate; 14. Guide block; 15. Moving plate; 16. First blocking plate; 17. First mounting slot; 18. First filter screen; 19. Movable plate; 20. Collection cylinder; 21. Placement port; 22. Stirring rod; 23. Mounting cylinder; 24. Connecting frame; 25. Outer frame; 26. Stirring plate; 27. Second mounting slot; 28. Mesh plate; 29. ​​Insertion block; 30. Mounting plate; 31. Rotary... 32. Moving seat; 33. Inclined block; 34. Mounting cover; 35. Lifting plate; 36. Filter hopper; 37. Discharge pipe; 38. Half toothed ring; 39. Mounting shaft; 30. Rotating component; 3901. Rotating plate; 3902. First arc-shaped toothed plate; 3903. Second arc-shaped toothed plate; 40. Moving toothed plate; 41. Movable frame; 42. Sealing gasket; 43. Moving rod; 44. Connecting rod; 45. Extrusion cylinder; 46. Drive wheel; 47. Driven wheel; 48. Transmission belt; 49. Fixed plate; 50. First tension spring; 51. Telescopic rod; 52. Fixed seat; 53. Movable frame; 54. Extrusion plate; 55. First spring; 56. Sliding groove; 57. Second tension spring. Detailed Implementation

[0041] The following is in conjunction with the appendix Figure 1 -Appendix Figure 11 This application will be described in further detail.

[0042] Reference Figures 1-11 This invention provides a technical solution: a CNC machine tool coolant circulation and purification device, comprising a support frame 1, a first purification tank 2, and a purification mechanism. The first purification tank 2 is installed on the right side of the top of the support frame 1, a second purification tank 3 is installed on the top of the support frame 1, a support plate 4 is installed on the left side of the support frame 1, and a third purification tank 5 is installed on the top of the support plate 4. The device discharges the coolant used in the CNC machine tool into the first purification tank 2, causing oil in the coolant to float to the surface. Through continuous cooling, the floating oil on the surface enters the purification mechanism, thereby removing the floating oil from the coolant. (See reference...) Figures 1-3In a preferred embodiment, a purification mechanism is provided, comprising a magnetic roller 6, a blocking roller 7, a collection box 8, and a collection hopper 9. The magnetic roller 6 is rotatably mounted on the left side of the inner wall of the first purification box 2. The blocking roller 7 is located on top of the magnetic roller 6 and is rotatably mounted on the left side of the inner wall of the first purification box 2. The collection box 8 is mounted on the left side of the first purification box 2, and the collection hopper 9 is mounted on the top right side of the inner wall of the collection box 8. A first motor 10 is mounted on the back of the first purification box 2, and a first gear 11 is mounted on the output end of the first motor 10. The first gear 11 is mounted on the back of the magnetic roller 6, and a second gear 12 is mounted on the back of the first purification box 2. The first gear 11 and the second gear 12 mesh with each other. The second gear 12 is mounted on the back of the blocking roller 7, enabling the first motor 10 to... After startup, the magnetic roller 6 and the blocking roller 7 are driven to rotate by the first gear 11 and the second gear 12. When the coolant is continuously delivered to the first purification tank 2, the floating oil on the surface of the coolant flows to the inside of the magnetic roller 6 and the blocking roller 7 during the cooling and transportation of the workpiece. The magnetic roller 6 then adsorbs the metal shavings in the floating oil and transports the floating oil to the second purification tank 3 for collection. The front and rear sides of the top left side of the first purification tank 2 are equipped with baffles 13. The top of the collection tank 8 is equipped with a guide block 14, and the top of the guide block 14 is inclined. The bottom of the first purification tank 2 is connected to the second purification tank 3 through the first connecting pipe. The baffles 13 can block the flowing oil and prevent the floating oil from flowing out of the collection tank 8 and affecting the surrounding processing environment.

[0043] The magnetic roller 6 is cylindrical, with a length equal to the width inside the first purification box, in order to adsorb metal shavings contained in the floating oil in the coolant; the guide block 14 is designed as a rectangle with an inclined top, in order to scrape off the metal shavings on the surface of the magnetic roller 6.

[0044] Reference Figures 1-6In a preferred embodiment, the inner cavity of the second purification box 3 is provided with a movable plate 15, both sides of which extend to the outer side of the second purification box 3. A first baffle plate 16 is installed on the inner wall of the second purification box 3, and the movable plate 15 is slidably installed on the inner wall of the L-shaped first baffle plate 16. A first mounting groove 17 is provided on the front and rear sides of the right side of the movable plate 15. A first filter screen 18 is slidably installed on the inner wall of the first mounting groove 17, and a movable plate 19 is installed on the front and rear sides of the right side of the first filter screen 18. A second connecting pipe (not marked in the figure) is connected to the left side of the second purification box 3 and communicates with the third purification box 5. The second connecting pipe is located at the first filter screen 18. On the left side, the coolant and metal shavings entering the second purification tank 3 can flow towards the first filter screen 18, thereby allowing the coolant to flow into the third purification tank 5. Before the coolant flows into the third purification tank 5, the first filter screen 18 can block the metal shavings in the coolant, ensuring that only coolant enters the third purification tank 5. Furthermore, by moving the moving plate 15, a set of first filters 18 can be misaligned with the second connecting pipe, and this first filter screen 18 can be moved to the outside of the second purification tank 3 for cleaning of a single set of first filters 18. This saves the time required to set up and stop the machine when replacing the entire first filter screen 18, and can continuously filter the molten metal in the coolant.

[0045] The movable plate 15 is equipped with an installation slot, which is mainly used to slide and exchange different filters, and to slide the used filter to the outside of the purification box for cleaning.

[0046] Reference Figures 1-10In a preferred embodiment, a collection cylinder 20 is inserted into the back of the third purification box 5. The top of the collection cylinder 20 has a placement opening 21, and a stirring rod 22 is installed on the inner wall of the collection cylinder 20. Several stirring rods 22 are provided. An installation cylinder 23 is fitted onto the surface of the stirring rod 22, and a connecting frame 24 is installed on the surface of the installation cylinder 23. An outer frame 25 is installed on the surface of the installation cylinder 23. The outer side of the connecting frame 24 is connected to the outer frame 25, and a stirring plate 26 is installed on the surface of the outer frame 25. A second installation groove 2 is formed on the surface of the connecting frame 24. 7. A mesh plate 28 is installed on the inner wall of the second mounting groove 27, and the mounting cylinder 23 is semi-circular, allowing the placement port 21 to be opened to place alkaline substances into the collection cylinder 20. When the collection cylinder 20 rotates, the alkaline substances are sprayed out, causing them to react with metal ions in the coolant and produce precipitates. This effectively removes metal ions from the coolant, preventing a large amount of metal ions from affecting the cooling effect. Furthermore, the rotation of the outer frame 25 agitates the coolant. Plate 26 mixes the coolant and added alkaline substances, and the outer frame 25 can divert some of the coolant and alkaline substances when rotating, thereby mixing the coolant and alkaline substances. Insertion blocks 29 are mounted on the surface of the mounting cylinder 23. A mounting plate 30 is mounted on the front side of the inner wall of the third purification chamber 5, and the insertion blocks 29 and mounting plate 30 are inserted into each other. The back of the collection cylinder 20 is inserted into the mounting plate 30. A rotating seat 31 is mounted on the back of the collection cylinder 20, and the back of the insertion blocks 29 extends to the surface of the rotating seat 31. When the 9th component is inserted into the third purification box 5, the thin cylindrical mounting plate 30 is rotated, which in turn drives the mounting cylinder 23 and the outer frame 25 to rotate via the insertion block 29. This allows alkaline substances to fall into the coolant. When the collection cylinder 20 is rotated, the material rotates within it, causing the stirring rod 22 to initially disperse the alkaline substances, preventing them from clumping together and falling off. It is worth noting that the insertion block 29 is not connected to the rotating seat 31, so that rotating the rotating seat 31 does not cause the insertion block 29 to rotate.

[0047] The plug-in block 29 has a cuboid structure (it uses a plug-in form, and the cuboid shape makes it easy to insert into the socket of another structure, making the connection convenient). The back of the plug-in block 29 extends to the surface of the rotating seat 31. Before the device is running, the collection cylinder 20 is pulled outward along the plug-in block 29 to place the alkaline substance into the collection cylinder.

[0048] The stirring rod 22 is a small cylindrical design used to stir the alkaline substances in the collection cylinder 20 to prevent them from clumping and spilling out during the installation and rotation process, thus preventing them from reacting chemically with the cutting fluid.

[0049] The outer frame 25 is a cylindrical structure with narrow and wide connecting slots. The narrower slot is used to connect the narrower cuboid agitator plate 26, and the wider slot is used for the flow of coolant. The cuboid agitator plate 26 mainly stirs and mixes the coolant and added alkaline substances during the purification process, so that the two react fully to achieve coolant purification.

[0050] In addition, a drive wheel 46 is installed at the front end of the magnetic roller 6, the front of the mounting plate 30 extends to the outside of the third purification box 5, and a driven wheel 47 is installed on the surface of the mounting plate 30. A transmission belt 48 is wound around the surface of the drive wheel 46, and the transmission belt 48 is sleeved on the surface of the drive wheel 46 and the driven wheel 47. This allows the first motor 10 to drive the magnetic roller 6 to rotate while driving the drive wheel 46 to rotate. This facilitates the drive wheel 46 to drive the mounting plate 30 to rotate through the transmission belt 48 and the driven wheel 47, enabling the mounting plate 30 to drive the outer frame 25 to rotate. This not only eliminates the need for manual rotation of the mounting plate 30, but also reduces the use of drive equipment and avoids excessive involvement of drive equipment, which would increase the maintenance burden when maintenance is required.

[0051] Reference Figures 1-10 In a preferred embodiment, the surface of the rotating seat 31 is provided with a semi-toothed ring 37, and the insertion block 29 is inserted into the semi-toothed ring 37. The back of the third purification box 5 is provided with an installation shaft 38, and the surface of the installation shaft 38 is provided with a rotating component 39. The back of the third purification box 5 is provided with a movable toothed plate 40, and the rotating component 39 can be specifically divided into a rotating plate 3901, a first arc-shaped toothed plate 3902 installed on the top of the rotating plate 3901, and a second arc-shaped toothed plate 3903 installed on the bottom of the rotating plate 3901. The front of the movable toothed plate 40 is provided with a movable frame 41, and the back of the movable frame 41 is provided with a sealing gasket 42, which is in contact with the rear side of the inner wall of the third purification box 5. The front of the movable frame 41 is rotatably mounted with a moving rod 43, and the surface of the moving rod 43 is provided with a connecting rod 44. The surface of the moving rod 43 is fitted with a compression cylinder 45, and the compression cylinder 45... Specifically, the grid is arranged in a ring. When the rotating seat 31 and the outer frame 25 rotate via the plug block 29, the plug block 29 drives the half-tooth ring 37 to rotate. When the teeth of the half-tooth ring 37 rotate to mesh with the first arc-shaped toothed plate 3902, it can drive the first arc-shaped toothed plate 3902 to rotate. The first arc-shaped toothed plate 3902 can drive the second arc-shaped toothed plate 3903 to rotate via the rotating plate 3901. The second arc-shaped toothed plate 3903 drives the moving toothed plate 40 to move. The moving toothed plate 40 drives the moving rod 43 and the extrusion cylinder 45 via the movable frame 41. Thus, when the grid-connected extrusion cylinder 45 rotates, it extrudes the blocky alkaline substance, further crushing the alkaline substance, so that the alkaline substance can fully react with the metal ions in the coolant. It is worth noting that the alkaline substance can be a hydroxide.

[0052] In addition, a fixing plate 49 is installed on the back of the third purification box 5. A first tension spring 50 is installed on the right side of the fixing plate 49, and the right end of the first tension spring 50 is connected to the left side of the moving toothed plate 40. A telescopic rod 51 is installed on the inner side of the fixing plate 49 and the moving toothed plate 40. The first tension spring 50 is sleeved on the surface of the telescopic rod 51, which can pull the moving toothed plate 40. When the moving toothed plate 40 is squeezed, it drives the second arc-shaped toothed plate 3903 to rotate, which can reset the second arc-shaped toothed plate 3903, thereby enabling the extrusion cylinder 45 to move back and forth.

[0053] Reference Figures 1-7 In a preferred embodiment, an inclined block 32 is installed at the bottom of the inner wall of the third purification box 5, an installation cover 33 is inserted into the top of the third purification box 5, and a lifting plate 34 is installed at the bottom of the installation cover 33. A filter bucket 35 is installed at the bottom of the lifting plate 34, and the filter bucket 35 is located to the left of the inclined block 32. A discharge pipe 36 located to the left of the filter bucket 35 is connected to the left side of the third purification box 5. After the installation cover 33 is installed, it can cover the filter bucket 35 to prevent impurities from entering the third purification box 5. After the metal ions in the coolant react with the alkaline material to produce precipitate, the precipitate can be moved towards the filter bucket 35 due to the rotation of the outer frame 25 and the stirring plate 26. After the filter bucket 35 filters the precipitate, the treated coolant is discharged from the discharge pipe 36.

[0054] Reference Figures 5-11 In a preferred embodiment, fixed seats 52 are installed on the front and rear sides of the bottom of the inner wall of the third purification box 5. A movable frame 53 is provided on the top of the fixed seat 52, and a pressing plate 54 is installed on the top of the movable frame 53. A first spring 55 is installed on the bottom of the inner wall of the movable frame 53, and the top of the first spring 55 is connected to the bottom of the pressing plate 54. A sliding groove 56 is provided on the top of the fixed seat 52, and the movable frame 53 slides in conjunction with the sliding groove 56. A second tension spring 57 is installed on the inner wall of the sliding groove 56 and is connected to the movable frame 53, enabling the stirring plate 26 to press the pressing plate 54 when rotating, thus achieving the desired effect. When the pressing plate 54 moves, it can press the pressing plate 54 into the moving frame 53 when the pressing plate 54 cannot move the moving frame 53. This causes the second tension spring 57 to pull the moving frame 53, which in turn causes the moving frame 53 to reset. This causes the moving frame 53 and the pressing plate 54 to move back and forth, pushing the precipitate to the left. This allows the filter hopper 35 to collect the precipitate, preventing metal ions from reacting with the corrosion inhibitor in the coolant, damaging the corrosion inhibitor film, and aggravating metal corrosion. It also prevents metal ions from causing changes in the pH value of the coolant, affecting its anti-corrosion performance and boiling point, and thus affecting the normal operation of the cooling system.

[0055] In other embodiments of this application, a CNC machine tool is provided, including the aforementioned CNC machine tool coolant circulation and purification device.

[0056] Specifically, the working process or principle of this CNC machine tool coolant circulation and purification system design method is as follows: In use, firstly, pull out the collection cylinder 20 and place the alkaline substance into it. After resetting the collection cylinder 20, rotate it so that the stirring rod 22 initially disperses the added alkaline substance. Connect the first purification tank 2 to the coolant discharge port of the CNC machine tool through an external connecting pipe. When coolant is continuously supplied to the first purification tank 2, the oil in the coolant will float to the surface. When the coolant level rises to be level with the magnetic roller 6, the first... A valve body is installed on the surface of the connecting pipe to ensure that the speed at which the coolant is discharged from the first connecting pipe is consistent with the speed at which the coolant is added. This allows the floating oil on the surface of the coolant to flow into the collection tank 8. When the coolant level rises to be level with the magnetic roller 6, the first motor 10 is started. The first motor 10 drives the magnetic roller 6 and the blocking roller 7 to rotate through the first gear 11 and the second gear 12. This allows the magnetic roller 6 to attract some metal shavings in the oil. As the magnetic roller 6 continues to rotate, the guide block 14 scrapes off the metal shavings on the surface of the magnetic roller 6, allowing the molten metal to fall into the collection hopper 9 for collection.

[0057] After the coolant is discharged into the second purification tank 3, the coolant and metal shavings can be guided to the moving plate 15. The first filter screen 18 blocks impurities in the coolant, allowing the coolant with metal shavings removed to be transported to the third purification tank 5. After the first filter screen 18 intercepts a large amount of metal shavings, the moving plate 15 is pushed backward to move the rear first filter screen 18 to the back of the second purification tank 3. This allows the metal shavings on the surface of the first filter screen 18 to be cleaned. After cleaning, the moving plate 15 is moved forward to push the rear first filter screen 18 into the second purification tank 3 and move the front first filter screen 18 out of the second purification tank 3 for cleaning. When one side of the first filter screen 18 is moved out, the other side of the filter screen will block the position of the moved first filter screen 18 and the moving plate 15 will seal the second connecting pipe at the position of the first filter screen 18 that has not been moved out.

[0058] After the coolant enters the third purification tank 5, the collection cylinder 20 is rotated so that the placement port 21 faces downwards. This allows the first motor 10 to drive the outer frame 25 to rotate via the drive wheel 46, transmission belt 48, and driven wheel 47 after startup. When the outer frame 25 rotates, it drives the installation cylinder 23 to rotate via the plug block 29. When the installation cylinder 23 rotates to the point where the notch faces downwards, the material in the collection cylinder 20 is spilled into the coolant. The spilled alkaline substance reacts with the metal ions in the coolant to form a precipitate, thereby removing the metal ions from the coolant. After the metal ions in the coolant react with the alkaline material to produce the precipitate, the rotation of the outer frame 25 and the stirring plate 26 moves the precipitate toward the filter hopper 35. The filter hopper 35 filters the precipitate and discharges the treated coolant from the discharge pipe 36.

[0059] This invention provides a design method for a CNC machine tool coolant circulation and purification system, belonging to the field of CNC machine tool technology. The CNC machine tool coolant circulation and purification device includes a support frame, a first purification tank, and a purification mechanism. A second purification tank is installed on the top of the support frame, a support plate is installed on the left side of the support frame, and a third purification tank is installed on the top of the support plate. A magnetic suction roller is rotatably installed on the left side of the inner wall of the first purification tank, a blocking roller is located on top of the magnetic suction roller, a collection tank is installed on the left side of the first purification tank, and a collection hopper is installed on the top right side of the inner wall of the collection tank. By setting up the purification mechanism, this invention can discharge the coolant used in the CNC machine tool into the first purification tank, causing oil in the coolant to float to the surface. Through continuous transport of the coolant, the floating oil on the surface enters the purification mechanism, thereby removing the floating oil from the coolant.

Claims

1. A coolant circulation and purification device, characterized in that, The device includes: a first purification chamber, comprising a chamber body and a purification mechanism, the purification mechanism being disposed at one end of the chamber body; wherein, coolant flows into the chamber body, and the purification mechanism performs a first filtration of the coolant to remove floating oil and shavings impurities from the surface of the coolant; a second purification chamber, disposed below the first purification chamber; wherein, the second purification chamber is connected to the first purification chamber, and the coolant after the first filtration flows into the second purification chamber, the second purification chamber performs a second filtration of the coolant to remove fine shavings impurities from the coolant; and a third purification chamber, disposed to the side and below the second purification chamber; wherein, the third purification chamber is connected to the second purification chamber, and the coolant after the second filtration flows into the third purification chamber, the third purification chamber purifies the coolant using a chemical method, and the third purification chamber drives the purification mechanism to operate; A collection cylinder (20) is inserted into the back of the third purification box (5). The top of the collection cylinder (20) is provided with a placement opening (21). An agitator (22) is installed on the inner wall of the collection cylinder (20). Several agitators (22) are provided. An installation cylinder (23) is sleeved on the surface of the agitator (22). A connecting frame (24) is installed on the surface of the installation cylinder (23). An outer frame (25) is installed on the surface of the installation cylinder (23). An agitator plate (26) is installed on the surface of the outer frame (25). A second installation groove (27) is opened on the surface of the connecting frame (24). A mesh plate (28) is installed on the inner wall of the second installation groove (27). The surface of the mounting cylinder (23) is fitted with a plug-in block (29), the front side of the inner wall of the third purification box (5) is fitted with a mounting plate (30), and the plug-in block (29) is plugged into the mounting plate (30). The back of the collection cylinder (20) is plugged into the mounting plate (30). The back of the collection cylinder (20) is fitted with a rotating seat (31), and the back of the plug-in block (29) extends to the surface of the rotating seat (31). The plug-in block (29) is plugged into the third purification box (5). An inclined block (32) is installed at the bottom of the inner wall of the third purification box (5). An installation cover (33) is inserted into the top of the third purification box (5), and a lifting plate (34) is installed at the bottom of the installation cover (33). A filter bucket (35) is installed at the bottom of the lifting plate (34), and the filter bucket (35) is located to the left of the inclined block (32). The left side of the third purification box (5) is connected to an exhaust pipe (36) located to the left of the filter bucket (35).

2. The apparatus according to claim 1, characterized in that, The device further includes: a support frame for mounting the first purification box and the second purification box; the purification mechanism includes: a magnetic suction roller (6), which is rotatably mounted on the left side of the inner wall of the first purification box (2); a blocking roller (7), which is located on top of the magnetic suction roller (6) and is rotatably mounted on the left side of the inner wall of the first purification box (2); a collection box (8), which is mounted on the left side of the first purification box (2); and a collection hopper (9), which is mounted on the top right side of the inner wall of the collection box (8).

3. The apparatus according to claim 2, characterized in that, A first motor (10) is installed on the back of the first purification box (2). A first gear (11) is installed at the output end of the first motor (10). The first gear (11) is installed on the back of the magnetic suction roller (6). A second gear (12) is installed on the back of the first purification box (2). The first gear (11) meshes with the second gear (12). The second gear (12) is installed on the back of the blocking roller (7).

4. The apparatus according to claim 3, characterized in that, The first purification box (2) has baffles (13) installed on the front and rear sides of the top left side. The top of the collection box (8) is equipped with a guide block (14), and the top of the guide block (14) is inclined. The bottom of the first purification box (2) is connected to the second purification box (3) through the first connecting pipe.

5. The apparatus according to claim 4, characterized in that, The inner cavity of the second purification box (3) is provided with a movable plate (15), both sides of which extend to the outer side of the second purification box (3). The inner wall of the second purification box (3) is provided with a first baffle plate (16), and the movable plate (15) is slidably installed on the inner wall of the first baffle plate (16) which is arranged in an L-shape. The front and rear sides of the right side of the movable plate (15) are provided with a first mounting groove (17), and the inner wall of the first mounting groove (17) is slidably installed with a first filter screen (18), and the front and rear sides of the right side of the first filter screen (18) are provided with a movable plate (19).

6. The apparatus according to claim 5, characterized in that, The rotating seat (31) has a semi-toothed ring (37) on its surface. The plug block (29) is plugged into the semi-toothed ring (37). The third purification box (5) has an installation shaft (38) on its back. The installation shaft (38) has a rotating part (39) on its surface. The third purification box (5) has a movable toothed plate (40) on its back. The movable toothed plate (40) has a movable frame (41) on its front. The movable frame (41) has a sealing gasket (42) on its back. The sealing gasket (42) is in contact with the rear side of the inner wall of the third purification box (5). The movable frame (41) has a movable rod (43) rotatably installed on its front. The movable rod (43) has a connecting rod (44) on its surface. The movable rod (43) has a compression cylinder (45) sleeved on its surface. The compression cylinder (45) is specifically a ring-shaped grid.

7. A CNC machine tool, characterized in that, The CNC machine tool includes the apparatus as described in any one of claims 1 to 6; wherein, the first purification chamber of the apparatus is connected to the coolant outlet of the CNC machine tool via a pipe; and the third purification chamber of the apparatus is connected to the coolant storage tank of the CNC machine tool via a pipe.

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