A high-concentration machine tool cutting fluid collection unit, a purification and filtration system and method with this unit

Abstract

The present invention discloses a high-concentration machine tool cutting fluid collection unit, a purification and filtration system and method with this unit. The purification and filtration system includes a collection tank and a cutting fluid collection unit. A collection funnel is fixedly installed at the top of the collection tank, and a purification tank is fixedly installed inside the collection tank. A discharge hopper is fixedly connected to the bottom of the purification tank, and a liquid outlet is opened at the bottom of the discharge hopper. A stirring motor is fixedly installed on the inner top wall of the collection tank, and a stirring shaft is fixedly installed at the output end of the stirring motor. A coarse filter screen sleeved on the stirring shaft is fixedly installed inside the purification tank. Electric telescopic rods are fixedly installed on both sides of the stirring shaft. The present invention relates to the technical field of machine tool processing. The high-concentration machine tool cutting fluid collection unit, the purification and filtration system and method with this unit can filter and purify the cutting fluid, effectively improve the cleanliness of the cutting fluid, and facilitate recycling and reuse at the same time.

Description

Technical Field

[0001] The present invention relates to the technical field of machine tool processing, and particularly to a high-concentration machine tool cutting fluid collection unit, a purification and filtration system and method with this unit. Background Art

[0002] Cutting fluid is an industrial liquid used in metal cutting and grinding processes to cool and lubricate tools and workpieces. Cutting fluid is composed of a variety of super-functional additives through scientific compounding, and at the same time has good cooling performance, lubricating performance, rust prevention performance, oil removal and cleaning function, anti-corrosion function, and easy dilution characteristics. It is suitable for cutting and grinding of ferrous metals and belongs to the current leading grinding products. Recycling of cutting fluid is a very common measure to reduce enterprise costs. The existing treatment method is to use a collection tank to collect the used cutting fluid, let it stand and immerse, and then re-extract the clarified cutting fluid on the upper layer for use. Since the cutting fluid often brings metal waste chips generated during processing into the collection tank during the collection process, if you want to reuse the cutting fluid in the collection tank, you need to immerse the cutting fluid in the collection tank for a period of time. The existing treatment method is to make the volume of the collection tank relatively large, so that the cutting fluid has enough time to immerse in the collection tank, but this also brings the problem of a large volume of the collection tank. To solve the above problems, Patent CN201811262820.2 discloses a cutting fluid collection and filtration system for numerically controlled machine tools, which can realize the recycling of cutting fluid with a collection and separation tank of a relatively small volume, but its structural function is relatively single, and only by letting the cutting fluid stand and immerse for a long time, the collection efficiency of the cutting fluid is not high. At the same time, no purification and filtration is carried out, resulting in low purity of the finally obtained cutting fluid, and there may still be residual impurities inside, which is not conducive to re-extraction and use. Therefore, we propose a high-concentration machine tool cutting fluid collection unit, a purification and filtration system and method with this unit. Summary of the Invention

[0003] Aiming at the deficiencies of the prior art, the present invention provides a high-concentration machine tool cutting fluid collection unit, a purification and filtration system and method with this unit, which solves the problems that the existing cutting fluid collection has low collection efficiency due to long standing and immersion time of the cutting fluid, and at the same time the purity of the finally obtained cutting fluid is not high, and there may still be residual impurities inside, which is not conducive to re-extraction and use.

[0004] To achieve the above objectives, the present invention is realized through the following technical solutions: A high-concentration machine tool cutting fluid collection unit includes a cutting fluid collection mechanism. The cutting fluid collection mechanism includes a static box. The inner wall of the static box is fixedly installed with a high liquid level sensor and a low liquid level sensor from top to bottom in sequence. The bottom of the static box is fixedly installed with a discharge pipe, and a solenoid valve is fixedly installed on the discharge pipe. One side of the static box is provided with a liquid discharge mechanism for pumping out the high liquid level cutting fluid inside the static box, and the bottom of the static box is provided with a second liquid discharge mechanism for discharging the low liquid level cutting fluid inside the static box.

[0005] Preferably, the liquid discharge mechanism includes a pump body fixedly installed inside the collection box. The liquid inlet of the pump body is fixedly connected with a liquid inlet pipe extending into the static box and located above the low liquid level sensor, and the liquid outlet is fixedly connected with a liquid outlet pipe.

[0006] Preferably, the second liquid discharge mechanism includes a liquid collection box fixedly installed at the bottom of the static box. The discharge pipe extends into the liquid collection box, and a liquid discharge port is opened at one end of the liquid collection box.

[0007] A high-concentration machine tool purification and filtration system includes a collection box and the above-mentioned high-concentration machine tool cutting fluid collection unit. A collection funnel is fixedly installed at the top of the collection box. A purification box is fixedly installed inside the collection box. The bottom of the purification box is fixedly connected with a discharge hopper, and a liquid outlet is opened at the bottom of the discharge hopper. A stirring motor is fixedly installed on the inner top wall of the collection box. The output end of the stirring motor is fixedly installed with a stirring shaft. A coarse filter screen sleeved on the stirring shaft is fixedly installed inside the purification box. Electric telescopic rods are fixedly installed on both sides of the stirring shaft. An iron chip adsorption mechanism is arranged at the bottom of one end of the electric telescopic rod. Through holes are fixedly installed on both sides of the collection box, and a rotating door is arranged inside the through holes. Collection boxes are fixedly installed on the outer walls on both sides of the collection box. Stirring paddles are fixedly installed on the stirring shaft. A scraper is fixedly installed at one end of the stirring paddle. A cleaning brush is fixedly installed on one side surface of the scraper. A grinding disc is fixedly installed at the bottom of the stirring shaft. A fine filter screen is fixedly installed inside the discharge hopper. The bottom of the liquid outlet is communicated with the static box. A controller for controlling electrical components is fixedly installed on the collection box. A maintenance door is fixedly installed on the front of the collection box.

[0008] Preferably, the iron chip adsorption mechanism includes a first motor fixedly installed at the bottom of one end of the electric telescopic rod. The output end of the first motor is fixedly installed with a first rotating shaft. A rotating rod is fixedly installed on the first rotating shaft. A plurality of electromagnets are fixedly installed at the bottom of the rotating rod.

[0009] Preferably, the through hole and the iron filings adsorption mechanism are on the same horizontal line. The rotating door includes a door body movably clamped inside the through hole, and the top end of the door body is hinged to the inner top wall of the through hole through a hinge.

[0010] Preferably, electric heating plates are fixedly installed on the outer walls on both sides of the purification tank.

[0011] Preferably, the signal output ends of the high liquid level sensor and the low liquid level sensor are respectively connected to the signal input end of the controller, and the signal input ends of the solenoid valve and the pump body are connected to the signal output end of the controller.

[0012] The present invention also discloses a method for a high-concentration machine tool purification and filtration system, which specifically includes the following steps: S1, collecting the used cutting fluid through a collecting funnel; S2, roughly filtering the cutting fluid entering the purification tank from the collecting funnel through a coarse filter screen; S3, removing iron filings from the collected liquid filtered on the surface of the coarse filter screen through an iron filings adsorption mechanism; S4, stirring the cutting fluid inside the filtered purification tank through a stirring paddle; S5, re-filtering the evenly stirred cutting fluid through a fine filter screen; S6, the filtered cutting fluid enters a static tank for static stratification; S7, respectively discharging and collecting the stratified cutting fluid in the static tank through a liquid discharging mechanism and a second liquid discharging mechanism.

[0013] Preferably, the electric heating plate is turned on during the stirring process to heat the inside of the purification tank. Beneficial effects

[0014] The present invention provides a high-concentration machine tool cutting fluid collection unit, a purification and filtration system and a method with this unit. Compared with the prior art, it has the following beneficial effects:

[0015] 1. For the high-concentration machine tool cutting fluid collection unit, the purification and filtration system and the method with this unit, the collecting funnel is used to collect the used cutting fluid. A purification tank is arranged inside the collecting box, and a coarse filter screen is arranged inside the purification tank. Through the coarse filter screen, impurities and iron filings in the cutting fluid can be filtered out when the cutting fluid enters the purification tank, so as to effectively separate the cutting fluid and the solid waste in the cutting fluid, thereby improving the cleanliness of the cutting fluid and facilitating subsequent use. In addition, by arranging an iron filings adsorption mechanism above the coarse filter screen, and installing through holes and collecting boxes on both sides of the collecting box, the iron filings adsorption mechanism can adsorb the iron filings on the coarse filter screen and transport the iron filings to the inside of the collecting box by moving in the through holes, so as to achieve the purpose of cleaning and collecting the filtered waste iron filings;

[0016] 2. The high-concentration machine tool cutting fluid collection unit, purification and filtration system and method with this unit stir and heat the cutting fluid entering the purification tank by arranging a stirring shaft and stirring paddles inside the purification tank and fixedly installing an electric heating plate on the outer wall of the purification tank, avoiding caking, making its components more uniform and its fluidity stronger, so as to facilitate re-filtration through a fine filter screen, further precipitating fine impurities in the cutting fluid, further improving the cleanliness of the cutting fluid, facilitating recycling. In addition, by fixedly connecting a scraping plate and a cleaning brush to one end of the stirring paddle, during the stirring process of the stirring paddle, the scraping plate and the cleaning brush can avoid the problem that impurities and cutting fluid adhere to the inner wall of the purification tank and are difficult to clean and cause secondary pollution to the cutting fluid;

[0017] 3. The high-concentration machine tool cutting fluid collection unit, purification and filtration system and method with this unit can effectively improve the quality of the cutting fluid by purifying and filtering the cutting fluid through a coarse filter screen and a fine filter screen, so that the static immersion of the cutting fluid can be realized with a static tank of a smaller volume. By fixedly installing a high liquid level sensor and a low liquid level sensor inside the static tank, a liquid discharge mechanism is arranged on one side of the static tank, and a second liquid discharge mechanism is arranged at the bottom. Then, after the cutting fluid is stratified in the static tank, the relatively pure cutting fluid at the high liquid level after static settlement in the static tank can be pumped out through the liquid discharge mechanism for recycling, and the cutting fluid with a lower purity at the low liquid level is collected through the second liquid discharge mechanism and can also be repeatedly purified, thus effectively improving the quality of the recycled cutting fluid. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a front view structural schematic diagram of the present invention;

[0019] Figure 2 is an overall structural schematic diagram of the present invention;

[0020] Figure 3 is a structural schematic diagram of the rotating door of the present invention;

[0021] Figure 4 is a structural schematic diagram of the iron chip adsorption mechanism of the present invention;

[0022] Figure 5 is a structural schematic diagram of the scraping plate and the cleaning brush of the present invention;

[0023] Figure 6 is a structural schematic diagram of the grinding disc of the present invention;

[0024] Figure 7 is a structural schematic diagram of the cutting fluid collection mechanism and the liquid discharge mechanism of the present invention;

[0025] Figure 8 is a structural schematic diagram of the collection box of the present invention;

[0026] Figure 9 It is a schematic diagram of the local signal connection structure of the present invention;

[0027] Figure 10 It is a schematic diagram of the purification and filtration method of the present invention.

[0028] In the figure, 1, collecting box; 2, collecting funnel; 3, purification box; 4, discharging hopper; 41, liquid outlet; 5, stirring motor; 6, coarse filter; 7, electric telescopic rod; 8, iron filings adsorption mechanism; 81, first motor; 82, first rotating shaft; 83, rotating rod; 84, electromagnet; 9, through hole; 10, rotating door; 101 door body; 102, hinge; 11, collecting box; 12, stirring paddle; 13, scraper; 14, cleaning brush; 15, grinding disc ; 16. Fine filter; 17. Cutting fluid collection mechanism; 171. Standing box; 172. High liquid level sensor; 173. Low liquid level sensor; 174. Discharge pipe; 1741. Solenoid valve; 18. Discharge mechanism; 181. Pump body; 182. Liquid inlet pipe; 183. Liquid outlet pipe; 19. Second discharge mechanism; 191. Liquid collecting box; 192. Discharge port; 20. Electric heating plate; 21. Controller; 22. Inspection door; 23. Agitator shaft. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] See also Figures 1-10 , the embodiment of the present invention provides two technical solutions: Example

[0031] A high-concentration machine tool cutting fluid collection unit includes a cutting fluid collection mechanism 17, the cutting fluid collection mechanism 17 includes a still box 171, the inner wall of the still box 171 is fixedly installed with a high liquid level sensor 172 and a low liquid level sensor 173 from top to bottom, a discharge pipe 174 is fixedly installed at the bottom of the still box 171, and a solenoid valve 1741 is fixedly installed on the discharge pipe 174, a drainage mechanism 18 for extracting the high liquid level cutting fluid inside the still box 171 is provided on one side of the still box 171, and a second drainage mechanism 19 for discharging the low liquid level cutting fluid inside the still box 171 is provided at the bottom of the still box 171.

[0032] The liquid discharging mechanism 18 includes a pump body 181 fixedly installed inside the collection tank 1. The liquid inlet of the pump body 181 is fixedly connected to a liquid inlet pipe 182 that extends into the static tank 171 and is located above the low liquid level sensor 173, and the liquid outlet is fixedly connected to a liquid outlet pipe 183.

[0033] The second liquid discharging mechanism 19 includes a liquid collection tank 191 fixedly installed at the bottom of the static tank 171. The discharge pipe 174 extends into the liquid collection tank 191, and a liquid discharge port 192 is formed at one end of the liquid collection tank 191.

[0034] A high-concentration machine tool purification and filtration system includes a collection tank 1 and a high-concentration machine tool cutting fluid collection unit. A collection funnel 2 is fixedly installed at the top of the collection tank 1. A purification tank 3 is fixedly installed inside the collection tank 1. A discharge hopper 4 is fixedly connected to the bottom of the purification tank 3. A liquid outlet 41 is formed at the bottom of the discharge hopper 4. A stirring motor 5 is fixedly installed on the inner top wall of the collection tank 1. The output end of the stirring motor 5 is fixedly installed with a stirring shaft 23. A coarse filter screen 6 sleeved on the stirring shaft 23 is fixedly installed inside the purification tank 3. Electric telescopic rods 7 are fixedly installed on both sides of the stirring shaft 23. An iron chip adsorption mechanism 8 is arranged at the bottom of one end of the electric telescopic rod 7. Through holes 9 are fixedly installed on both sides of the collection tank 1. A rotating door 10 is arranged inside the through holes 9. Collection boxes 11 are fixedly installed on the outer walls on both sides of the collection tank 1. Stirring paddles 12 are fixedly installed on the stirring shaft 23. A scraping plate 13 is fixedly installed at one end of the stirring paddle 12. A cleaning brush 14 is fixedly installed on one side surface of the scraping plate 13. A grinding disc 15 is fixedly installed at the bottom of the stirring shaft 23. A fine filter screen 16 is fixedly installed inside the discharge hopper 4. The bottom of the liquid outlet 41 is communicated with the static tank 171. A controller 21 for controlling electrical components is fixedly installed on the collection tank 1. A maintenance door 22 is fixedly installed on the front of the collection tank 1. Embodiment

[0035] A high-concentration machine tool cutting fluid collection unit includes a cutting fluid collection mechanism 17. The cutting fluid collection mechanism 17 includes a static box 171. A high liquid level sensor 172 and a low liquid level sensor 173 are fixedly installed on the inner wall of the static box 171 in sequence from top to bottom. A discharge pipe 174 is fixedly installed at the bottom of the static box 171. An electromagnetic valve 1741 is fixedly installed on the discharge pipe 174. A liquid discharge mechanism 18 for pumping out the high liquid level cutting fluid inside the static box 171 is arranged on one side of the static box 171. The liquid discharge mechanism 18 includes a pump body 181 fixedly installed inside the collection box 1. The liquid inlet of the pump body 181 is fixedly connected with a liquid inlet pipe 182 extending into the static box 171 and located above the low liquid level sensor 173. The liquid outlet is fixedly connected with a liquid outlet pipe 183. By starting the pump body 181, the cutting fluid inside the static box 171 can be pumped out by using the liquid inlet pipe 182 and pumped out through the liquid outlet pipe 183 for the machine tool to recycle. A second liquid discharge mechanism 19 for discharging the low liquid level cutting fluid inside the static box 171 is arranged at the bottom of the static box 171. The second liquid discharge mechanism 19 includes a liquid collection box 191 fixedly installed at the bottom of the static box 171. The discharge pipe 174 extends into the liquid collection box 191. A liquid discharge port 192 is opened at one end of the liquid collection box 191. The liquid collection box 191 can collect the cutting fluid discharged at the low liquid level inside the static box 171.

[0036] A high-concentration machine tool purification and filtration system includes a collection box 1 and a high-concentration machine tool cutting fluid collection unit. A collection funnel 2 is fixedly installed at the top of the collection box 1. A purification box 3 is fixedly installed inside the collection box 1. A discharge hopper 4 is fixedly connected to the bottom of the purification box 3. A liquid outlet 41 is opened at the bottom of the discharge hopper 4. A stirring motor 5 is fixedly installed on the inner top wall of the collection box 1. The output end of the stirring motor 5 is fixedly installed with a stirring shaft 23. A coarse filter screen 6 sleeved on the stirring shaft 23 is fixedly installed inside the purification box 3. Electric telescopic rods 7 are fixedly installed on both sides of the stirring shaft 23. An iron chip adsorption mechanism 8 is arranged at the bottom of one end of the electric telescopic rod 7. The iron chip adsorption mechanism 8 includes a first motor 81 fixedly installed at the bottom of one end of the electric telescopic rod 7. The output end of the first motor 81 is fixedly installed with a first rotating shaft 82. A rotating rod 83 is fixedly installed on the first rotating shaft 82. A plurality of electromagnets 84 are fixedly installed at the bottom of the rotating rod 83. Starting the first motor 81 can drive the first rotating shaft 82 to rotate, thereby driving the rotating rod 83 to rotate to stir the debris on the surface of the coarse filter screen 6, and at the same time, energizing the electromagnets 84 to generate magnetic force to adsorb the iron chips in the debris; Through holes 9 are fixedly installed on both sides of the collection box 1. A rotating door 10 is arranged inside the through holes 9. Collection boxes 11 are fixedly installed on the outer walls on both sides of the collection box 1. The through holes 9 and the iron chip adsorption mechanism 8 are on the same horizontal line. The rotating door 10 includes a door body 101 movably clamped inside the through hole 9. The top end of the door body 101 is hinged to the inner top wall of the through hole 9 through a hinge 102. The first motor 81 is installed on the electric telescopic rod 7. After the electromagnets 84 adsorb the iron chips, the electric telescopic rod 7 is started to extend and retract to send the iron chip adsorption mechanism 8 out of the through hole 9 and move it above the collection box 11. Then, the electromagnets 84 are powered off, so that the iron chips adsorbed on the electromagnets 84 fall into the collection box 11 under the action of gravity for collection; Stirring paddles 12 are fixedly installed on the stirring shaft 23. A scraping plate 13 is fixedly installed at one end of the stirring paddle 12. A cleaning brush 14 is fixedly installed on one side surface of the scraping plate 13. A grinding disc 15 is fixedly installed at the bottom of the stirring shaft 23. A fine filter screen 16 is fixedly installed inside the discharge hopper 4. Electric heating plates 20 are fixedly installed on the outer walls on both sides of the purification box 3. The purification box 3 can be heated through the electric heating plates 20 to facilitate improving the fluidity of the cutting fluid inside the purification box 3; The bottom of the liquid outlet 41 is communicated with a static box 171. A controller 21 for controlling electrical components is fixedly installed on the collection box 1. The signal output ends of the high liquid level sensor 172 and the low liquid level sensor 173 are respectively connected to the signal input end of the controller 21. The static liquid level height of the cutting fluid inside the static box 171 can be measured respectively through the high liquid level sensor 172 and the low liquid level sensor 173, and the collected signals are transmitted to the controller 21; The signal input ends of the solenoid valve 1741 and the pump body 181 are connected to the signal output end of the controller 21. The controller 21 can automatically control the start and stop of the pump body 181 and the opening and closing of the solenoid valve 1741; A maintenance door 22 is fixedly installed on the front of the collection box 1.

[0037] When a high-concentration machine tool cutting fluid collection unit and a purification and filtration system with this unit are in use, the collection funnel 2 is used to collect the cutting fluid after the machine tool is used. By arranging a purification tank 3 inside the collection tank 1 and a coarse filter screen 6 inside the purification tank 3, the coarse filter screen 6 can filter out impurities and iron filings in the cutting fluid when it enters the purification tank 3, so as to effectively separate the cutting fluid and the solid waste in the cutting fluid, thereby improving the cleanliness of the cutting fluid and facilitating subsequent use. In addition, by arranging an iron filings adsorption mechanism 8 above the coarse filter screen 6 and installing through holes 9 and collection boxes 11 on both sides of the collection tank 1, the iron filings adsorption mechanism 8 can adsorb the iron filings on the coarse filter screen 6 and transport the iron filings into the collection box 11 by moving through the through holes 9, so as to achieve the purpose of cleaning and collecting the filtered waste iron filings. In addition, by arranging a stirring shaft 23 and stirring paddles 12 inside the purification tank 3 and fixedly installing an electric heating plate 20 on the outer wall of the purification tank 3, the stirring paddles 12 can stir the cutting fluid entering the purification tank 3 and the electric heating plate 20 can heat the cutting fluid inside the purification tank 3 to avoid caking, make its components more uniform and its fluidity stronger, so as to facilitate re-filtering through the fine filter screen 16, further precipitate the fine impurities in the cutting fluid, further improve the cleanliness of the cutting fluid and facilitate recycling. In addition, by fixedly connecting a scraper 13 and a cleaning brush 14 to one end of the stirring paddle 12, during the stirring process of the stirring paddle 12, the scraper 13 and the cleaning brush 14 can avoid the problems that impurities and cutting fluid adhere to the inner wall of the purification tank 3 and are difficult to clean and cause secondary pollution to the cutting fluid. By purifying and filtering the cutting fluid through the coarse filter screen 6 and the fine filter screen 16, the quality of the cutting fluid can be effectively improved, so that the static immersion of the cutting fluid can be realized by using a static tank 171 with a smaller volume. The purified and filtered cutting fluid enters the static tank 171 through the liquid outlet 41 and is static in the static tank 171. By fixedly installing a high liquid level sensor 172 and a low liquid level sensor 173 inside the static tank 171, a liquid discharge mechanism 18 is arranged on one side of the static tank 171 and a second liquid discharge mechanism 19 is arranged at the bottom. Then, after the cutting fluid is stratified in the static tank 171, the liquid discharge mechanism 18 can pump out the high-level and relatively pure cutting fluid in the static tank 171 for recycling. The high liquid level sensor 172 and the low liquid level sensor 173 can respectively measure the liquid level height inside the static tank 171. When the liquid level drops after the high-level cutting fluid is pumped out, the low liquid level sensor 173 detects that the liquid level drops to the low level, so as to open the solenoid valve 1741 on the discharge pipe 174. The low-level and relatively impure cutting fluid enters the liquid collection tank 191 through the discharge pipe 174 and is collected by the second liquid discharge mechanism 19, or can be discharged through the liquid discharge port 192 for repeated purification treatment, thereby effectively improving the quality of the recycling of the cutting fluid.

[0038] Meanwhile, the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0039] It should be noted that, in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0040] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A purification and filtration system for a high-concentration machine tool cutting fluid collection unit, comprising a cutting fluid collection mechanism (17) and a collection tank (1), characterized in that: The cutting fluid collection mechanism (17) includes a static box (171). A high liquid level sensor (172) and a low liquid level sensor (173) are fixedly installed on the inner wall of the static box (171) in sequence from top to bottom. A discharge pipe (174) is fixedly installed at the bottom of the static box (171). A solenoid valve (1741) is fixedly installed on the discharge pipe (174). A liquid discharge mechanism (18) for pumping out the cutting fluid at a high liquid level inside the static box (171) is arranged on one side of the static box (171). A second liquid discharge mechanism (19) for discharging the cutting fluid at a low liquid level inside the static box (171) is arranged at the bottom of the static box (171). A collection funnel (2) is fixedly installed at the top of the collection box (1). A purification box (3) is fixedly installed inside the collection box (1). The bottom of the purification box (3) is fixedly connected with a discharge hopper (4). A liquid outlet (41) is opened at the bottom of the discharge hopper (4). A stirring motor (5) is fixedly installed on the inner top wall of the collection box (1). A stirring shaft (23) is fixedly installed at the output end of the stirring motor (5). A coarse filter screen (6) sleeved on the stirring shaft (23) is fixedly installed inside the purification box (3). Electric telescopic rods (7) are fixedly installed on both sides of the stirring shaft (23). An iron chip adsorption mechanism (8) is arranged at the bottom of one end of the electric telescopic rod (7). Through holes (9) are fixedly installed on both sides of the collection box (1). A rotating door (10) is arranged inside the through holes (9). Collection boxes (11) are fixedly installed on the outer walls on both sides of the collection box (1). Stirring paddles (12) are fixedly installed on the stirring shaft (23). A scraping plate (13) is fixedly installed at one end of the stirring paddle (12). A cleaning brush (14) is fixedly installed on one side surface of the scraping plate (13). A grinding disc (15) is fixedly installed at the bottom of the stirring shaft (23). A fine filter screen (16) is fixedly installed inside the discharge hopper (4). The bottom of the liquid outlet (41) is communicated with the static box (171). A controller (21) for controlling electrical components is fixedly installed on the collection box (1). A maintenance door (22) is fixedly installed on the front of the collection box (1).

2. The purification and filtration system of a high-concentration machine tool cutting fluid collection unit according to claim 1, wherein: The liquid discharge mechanism (18) includes a pump body (181) fixedly installed inside the collection box (1). The liquid inlet of the pump body (181) is fixedly connected with a liquid inlet pipe (182) extending into the static box (171) and located above the low liquid level sensor (173), and the liquid outlet is fixedly connected with a liquid outlet pipe (183).

3. The purification and filtration system for a high-concentration machine tool cutting fluid collection unit according to claim 1, wherein: The second liquid discharge mechanism (19) includes a liquid collection box (191) fixedly installed at the bottom of the static box (171). The discharge pipe (174) extends into the liquid collection box (191). A liquid discharge port (192) is opened at one end of the liquid collection box (191).

4. A purification and filtration system for a high-concentration machine tool cutting fluid collection unit according to claim 1, characterized in that: The iron filings adsorption mechanism (8) includes a first motor (81) fixedly installed at the bottom of one end of the electric telescopic rod (7). The output end of the first motor (81) is fixedly installed with a first rotating shaft (82). A rotating rod (83) is fixedly installed on the first rotating shaft (82), and a plurality of electromagnets (84) are fixedly installed at the bottom of the rotating rod (83).

5. The purification and filtration system of a high-concentration machine tool cutting fluid collection unit according to claim 4, characterized in that: The through hole (9) and the iron filings adsorption mechanism (8) are on the same horizontal line. The rotating door (10) includes a door body (101) movably clamped inside the through hole (9). The top end of the door body (101) is hinged to the inner top wall of the through hole (9) through a hinge (102).

6. The purification and filtration system of a high-concentration machine tool cutting fluid collection unit according to claim 4, characterized in that: Electric heating plates (20) are fixedly installed on the outer walls on both sides of the purification tank (3).

7. A purification and filtration system for a high-concentration machine tool cutting fluid collection unit according to claim 4, characterized in that: The signal output ends of the high liquid level sensor (172) and the low liquid level sensor (173) are respectively connected to the signal input end of the controller (21). The signal input ends of the electromagnetic valve (1741) and the pump body (181) are connected to the signal output end of the controller (21).

8. A method for implementing a purification and filtration system of a high-concentration machine tool cutting fluid collection unit according to any one of claims 1-7, characterized in that, Specifically, it includes the following steps: S1. Collect the used cutting fluid through the collection funnel (2); S2. Coarsely filter the cutting fluid entering the purification tank (3) from the collection funnel (2) through the coarse filter screen (6); S3. Remove iron filings from the collected liquid filtered on the surface of the coarse filter screen (6) through the iron filings adsorption mechanism (8). S4. Stir the cutting fluid inside the purified purification tank (3) through the stirring paddle (12); S5. Re-filter the evenly stirred cutting fluid through the fine filter screen (16); S6. The filtered cutting fluid enters the static tank (171) for static layering; S7. The drained liquid mechanism (18) and the second drained liquid mechanism (19) respectively drain and collect the layered cutting fluid inside the static tank (171).

9. The method of a purification and filtration system for a high-concentration machine tool cutting fluid collection unit according to claim 8, characterized in that: During the stirring process, the electric heating plate (20) is turned on to heat the inside of the purification tank (3).

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