Machining cutting fluid box

Abstract

The invention relates to a machining cutting fluid tank, and relates to the field of machinery manufacturing and industrial engineering, the machining cutting fluid tank comprises a machine tool body and a cutting fluid tank, the machine tool body is provided with a workbench, the cutting fluid tank is provided with a filtering mechanism, and a cutting fluid inlet pipe is arranged from the workbench to the filtering mechanism; the cutting fluid box is further connected with a cutting fluid outlet pipe through a pump, the cutting fluid outlet pipe is used for cooling a cutter and extends to the position above the workbench, a cooling and filtering transmission mechanism is arranged on the cutting fluid inlet pipe, and the cooling and filtering transmission mechanism converts flowing potential energy of the flowing cutting fluid into kinetic energy. And the cooling and filtering transmission mechanism can automatically adjust the corresponding filtering and cooling effects according to the flow of the cutting fluid in the cutting fluid inlet pipe. The problems of insufficient cutting fluid purification, low cooling efficiency, high operation cost and the like in the prior art are solved.

Description

Technical Field

[0001] The invention relates to the fields of mechanical manufacturing and industrial engineering, and in particular to a machining cutting fluid box. Background Art

[0002] Cutting fluid tanks are a key component in mechanical manufacturing and industrial engineering, primarily used to store, circulate, and cool cutting fluid. They are often integrated into CNC machine tools or other automated processing equipment to ensure continuous lubrication and cooling during the metal cutting process. This system not only helps extend tool life and improve workpiece surface quality, but also effectively removes chips and maintains a clean working environment. Therefore, the design and performance of the cutting fluid tank directly impact the efficiency and cost control of the entire machining process.

[0003] In traditional machining processes, cutting fluids often face various problems during use, which directly affect machining efficiency and quality. First, the cutting fluid is easily mixed with miscellaneous oils such as machine tool guide oil and workpiece anti-rust oil. These oils not only reduce the lubrication and cooling properties of the cutting fluid, but also cause the emulsion to separate and stink, increasing maintenance costs. Second, rust powder and other impurities generated during the cutting process can also mix into the cutting fluid. These tiny particles accelerate tool wear and affect machining accuracy. In addition, with long-term circulation, the temperature of the cutting fluid gradually increases, further weakening its effective cooling effect on the tool, which may cause workpiece deformation or surface burns. Summary of the Invention

[0004] The present invention aims to provide a simple, low-cost, machining cutting fluid tank that efficiently removes debris and impurities, reduces cutting fluid temperature, and offers a simple structure. Through innovative mechanical design and the application of fluid dynamics principles, the present invention addresses existing issues such as insufficient cutting fluid purification, low cooling efficiency, and high operating costs.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the present invention provides a machining cutting fluid box, including a machine tool bed and a cutting fluid box, a workbench is provided on the machine tool bed, a filtering mechanism is provided on the cutting fluid box, a cutting fluid inlet pipe is provided from the workbench to the filtering mechanism, the cutting fluid box is also connected to a cutting fluid outlet pipe for cooling the tool through a pump and extends to above the workbench, a cooling and filtering transmission mechanism is provided on the cutting fluid inlet pipe, the cooling and filtering transmission mechanism converts the flow potential energy of the cutting fluid flowing through into kinetic energy to drive the filter bucket to reciprocate to achieve sufficient filtration and cooling of the cutting fluid outlet pipe, and the cooling and filtering transmission mechanism can automatically adjust the corresponding filtering and cooling effects according to the cutting fluid flow rate in the cutting fluid inlet pipe.

[0006] Preferably, the cutting fluid inlet pipe is connected to an impeller housing, a bracket is provided on the cutting fluid box, the bracket is movably connected to the filter bucket through a plurality of connecting rods, the bracket is further movably connected to an impeller shaft passing through the impeller housing, the impeller shaft is provided with an impeller driven by cutting fluid in the impeller housing, one end of the impeller shaft is provided with a propeller driven by the impeller to cool the cutting fluid outlet pipe, and the other end of the impeller shaft is connected to a transmission mechanism driven by the impeller to make the filter bucket reciprocate under the connecting rod.

[0007] Preferably, the transmission mechanism includes a camshaft movably connected to the bracket, a cam provided at one end of the camshaft and abutting the filter bucket, a large pulley provided at the other end of the camshaft, a small pulley provided at the end of the impeller shaft, and a belt connecting the large pulley and the small pulley. The rotation of the impeller drives the small pulley, the large pulley and the cam to rotate through the impeller shaft. The rotation of the cam squeezes the side of the filter bucket, so that the filter bucket swings around the connecting rod mounting axis driven by the connecting rod, thereby achieving sufficient filtration of the cutting fluid.

[0008] Preferably, the cutting fluid outlet pipe is wound with a spiral capillary near the propeller, and both ends of the spiral capillary are respectively connected to an upper liquid receiving trough and a lower liquid receiving trough to utilize the capillary principle, siphon principle and heat exchange principle to cool the cutting fluid.

[0009] Preferably, a spring is further provided laterally between the filter hopper and the bracket to elastically swing the filter hopper.

[0010] Preferably, the end of the cutting fluid inlet pipe is above the filter bucket and is provided with a liquid separator.

[0011] Preferably, the interior of the cutting fluid box is divided into an oil-containing cutting fluid tank and an oil-free cutting fluid tank, and a first partition and a second partition are sequentially provided from the oil-containing cutting fluid tank to the oil-free cutting fluid tank, wherein a gap is left between the first partition and the bottom of the oil-containing cutting fluid tank, and the height of the top of the second partition is lower than the height of the top of the first partition.

[0012] Preferably, a magnetic groove is provided on the top of the second partition at a side away from the first partition.

[0013] Preferably, a liquid pouring plate is provided on the top of the second partition at a side of the magnetic suction groove away from the first partition.

[0014] Preferably, a sealing cover is provided on the outside of the impeller housing.

[0015] In summary, the present invention has the following beneficial technical effects:

[0016] Through innovative mechanical design and the application of fluid mechanics principles, this invention achieves multiple processing functions for cutting fluids, significantly improving their performance and machine tool efficiency. Regarding cutting fluid purification, the present invention utilizes the synergistic effects of a magnetic trough and a liquid pouring plate to effectively absorb rust and other metal particles while simultaneously intercepting tiny impurities, significantly improving the purity of the cutting fluid and reducing maintenance costs. This improvement not only extends the life of the cutting fluid but also reduces tool wear and reduced machining accuracy caused by impurities.

[0017] In terms of cooling efficiency and energy conservation, this invention utilizes the close integration of the spiral capillary tube and the cutting fluid outlet pipe to achieve automatic cooling of the cutting fluid through capillary and heat exchange principles, eliminating the need for additional energy consumption and reducing operating costs. Simultaneously, the potential energy of the cutting fluid flow is converted into rotational kinetic energy of the impeller, driving the entire mechanical transmission system, achieving a self-driven and efficient operating mode. This design is not only energy-efficient and environmentally friendly, but also ensures that the cutting fluid maintains a low temperature at the outlet, extending tool life and reducing the risk of workpiece deformation or surface burns.

[0018] The present invention boasts a simple and cost-effective structure. Through its ingenious mechanical design, it achieves the functions of a conventional cutting fluid tank, such as removing contaminant oil, lowering the outlet temperature, and efficiently adsorbing iron powder particles. This design not only reduces equipment manufacturing and maintenance costs, but also improves cutting fluid recycling and processing efficiency. Furthermore, the present invention has broad applicability and economical value in industrial applications, significantly improving processing quality and efficiency, and bringing greater economic and environmental benefits to enterprises. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a machining cutting fluid box of the present invention;

[0020] Figure 2 This is an enlarged schematic diagram of location I in a machining cutting fluid box according to the present invention;

[0021] Figure 3 This is a schematic diagram of the overall structure of a machining cutting fluid box according to the present invention from another perspective;

[0022] Figure 4 This is a schematic side view of the overall structure of a machining cutting fluid box according to the present invention;

[0023] Figure 5 A machining cutting fluid box of the present invention Figure 4 Schematic diagram of the cross section along AA;

[0024] Figure 6 This is a schematic diagram of the overall structure of a machining cutting fluid box according to the present invention;

[0025] Figure 7A machining cutting fluid box of the present invention Figure 6 Schematic cross-sectional view along CC and DD;

[0026] Figure 8 This is a schematic diagram of the overall structure of a machining cutting fluid box from the rear view of the present invention;

[0027] Figure 9 A machining cutting fluid box of the present invention Figure 8 Schematic cross-sectional view along EE;

[0028] Figure 10 This is a structural schematic diagram of a cutting fluid tank in a machining cutting fluid tank of the present invention;

[0029] Figure 11 This is a schematic structural diagram of an impeller housing in a machined cutting fluid tank according to the present invention;

[0030] Figure 12 This is a structural schematic diagram of a bracket in a machining cutting fluid box according to the present invention;

[0031] Figure 13 This is a schematic structural diagram of a cooling and filtering transmission mechanism in a machining cutting fluid tank according to the present invention;

[0032] Figure 14 The present invention is a structural schematic diagram of an impeller shaft, a propeller and an impeller in a machining cutting fluid box.

[0033] Reference numerals: 1, cutting fluid inlet pipe; 2, cutting fluid outlet pipe; 3, upper liquid tank; 4, lower liquid tank; 5, spiral capillary; 6, filter bucket; 7, magnetic block; 8, connecting rod; 9, spring; 10, rotating shaft; 11, workbench; 12, wind cone; 13, impeller housing; 14, impeller shaft; 15, small pulley; 16, large pulley; 17, belt; 18, bracket; 19, pump cover; 20, machine tool bed; 21, cam; 22 , liquid distributor; 23. camshaft; 24. pump; 25. cutting fluid tank; 26. magnetic suction groove; 27. pouring plate; 28. oily cutting fluid tank; 29. ​​oily cutting fluid tank tray; 30. oil-free cutting fluid tank; 31. oil-free cutting fluid tank tray; 32. connecting rod mounting shaft; 33. propeller; 34. impeller; 35. sealing cover; 36. first partition; 37. second partition; 38. filter hole; 39. filter screen; 40. through groove. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0035] The embodiment of the present invention discloses a cutting fluid tank 25 that utilizes the potential energy of cutting fluid flow to convert into kinetic energy to achieve cooling of the cutting fluid outlet, repeated filtration, and oil-water separation. The present invention is described in detail below:

[0036] The cutting fluid tank 25 of the present invention is mainly composed of a machine tool bed 20, a cutting fluid tank 25, a workbench 11, an impeller housing 13, an impeller shaft 14, a propeller 33, a small pulley 15, a large pulley 16, a cam 21, a camshaft 23, a pump 24, a pump cover 19, a cutting fluid inlet pipe 1, a cutting fluid outlet pipe 2, an upper liquid trough 3, a lower liquid trough 4, a spiral capillary 5, a filter bucket 6, a magnetic block 7, a connecting rod 8, a spring 9, a rotating shaft 10, a magnetic suction groove 26, a liquid pouring plate 27, an oil-containing cutting fluid tank 28, an oil-free cutting fluid tank 30 and related trays and partitions and other components.

[0037] The machine bed 20 and the cutting fluid tank 25 are both fixed to the ground. The machine bed 20 provides a stable support base for the entire device. Located on one side of the machine bed 20, it is used to store cutting fluid and perform oil-water separation and impurity filtering. The workbench 11 is movably connected to the machine bed 20, and its discharge port is fixedly connected to the impeller housing 13 via the cutting fluid inlet pipe 1. The impeller housing 13 is fixed to the bracket 18, and a hole is provided in the middle of the impeller housing 13 for flexible connection to the impeller shaft 14. The middle section of the impeller shaft 14 is fixedly connected to the impeller 34, and the end is fixedly connected to the propeller 33, forming a collaborative mechanism for driving and cooling the cutting fluid.

[0038] A small pulley 15 is fixed to one end of the impeller shaft 14, which is connected to a large pulley 16 fixed to one end of the camshaft 23 via a belt 17, forming a belt drive system that transmits rotational power to the cam 21. A connecting rod 8 is flexibly connected to a bracket 18 at one end and to the filter hopper 6 at the other end, forming a linkage mechanism that drives the filter hopper 6 to swing. The bottom of the filter hopper 6 is provided with a filter hole 38 for placing a filter screen 39. Rotating shafts 10 are flexibly connected to the connecting rod 8 on both sides. A spring 9 is supported between the filter hopper 6 and the bracket 18, providing elastic force to assist the swinging and filtering action of the filter hopper 6.

[0039] Bracket 18 is fixedly connected to cutting fluid tank 25, providing stable support for components such as impeller housing 13 and filter hopper 6. A large pulley 16 is fixed to one end of camshaft 23, and a cam 21 is fixed to the other end. Cam 21 is in active contact with one side of filter hopper 6. By rotating and squeezing the side of filter hopper 6, the force of spring 9 is overcome, driving filter hopper 6 to swing about connecting rod mounting shaft 32, achieving full filtration.

[0040] The pump 24 is fixedly connected to the pump cover 19, and the pump cover 19 is fixedly connected to the cutting fluid tank 25. The cutting fluid outlet pipe 2 is fixedly connected to the output port of the pump 24, and is used to extract the cutting fluid in the oil-free cutting fluid tank 30 and transport it to the vicinity of the tool for cooling. The spiral capillary 5 is wrapped around the cutting fluid outlet pipe 2 near the propeller 33. It is formed by wrapping an iron wire with a water-absorbent fabric to form a rod, which is wound around the cutting fluid outlet pipe 2. One end of the spiral capillary 5 is immersed in the upper liquid tank 3, and the other end is immersed in the lower liquid tank 4. It absorbs water through the capillary principle and the siphon principle, absorbs heat and cools down around the cutting fluid outlet pipe 2, and cools the cutting fluid. The upper liquid tank 3 and the lower liquid tank 4 are fixedly connected to the side of the cutting fluid tank 25 to form a coolant circulation system.

[0041] The cutting fluid tank 25 is equipped with a magnetic trough 26 and a pouring plate 27. The pouring plate 27 reduces the flow rate of overflowing cutting fluid. A through slot 40 below the magnetic trough 26 accommodates a magnetic block 7 (e.g., a magnet) to absorb metal particles such as rust, thereby purifying the cutting fluid. The rotating shafts 10 on either side of the filter hopper 6 are movably connected to the connecting rod 8. A spring 9 supports the filter hopper 6 and the bracket 18, forming an elastic swinging filter structure.

[0042] The working principle of the present invention is as follows:

[0043] The processed cutting fluid flows from the outlet of the workbench 11 through the cutting fluid inlet pipe 1 into the impeller housing 13, driving the impeller 34 to rotate, and then flows from the liquid separator 22 to the filter bucket 6. The rotation of the impeller 34 drives the small pulley 15, the large pulley 16 and the cam 21 to rotate through the impeller shaft 14. The rotation of the cam 21 squeezes the side of the filter bucket 6, overcoming the elastic force of the spring 9, causing the filter bucket 6 to swing around the connecting rod mounting shaft 32 driven by the connecting rod 8, thereby achieving sufficient filtration of the cutting fluid.

[0044] The cutting fluid flows through the impeller 34 into the liquid separator 22 and then into the filter hopper 6. After being filtered by the filter hopper 6, the cutting fluid flows into the oil-containing cutting fluid tank 28 of the cutting fluid tank 25. As the liquid level in the oil-containing cutting fluid tank 28 rises, the cutting fluid overflows through the first and second baffles 36 and 37, flows through the magnetic trough 26 and the liquid pouring plate 27, and enters the oil-free cutting fluid tank 30. Due to the low flow rate of the overflow, the metal particles in the cutting fluid at the magnetic trough 26 are attracted by the magnetic block 7, achieving efficient purification of the cutting fluid.

[0045] Cutting fluid from the oil-free cutting fluid tank 30 is pumped out by pump 24 and delivered to the vicinity of the cutting tool via the cutting fluid outlet pipe 2, where it cools the tool. The impeller 34 in the impeller housing 13 is driven by the cutting fluid in the cutting fluid inlet pipe 1. The impeller shaft 14 rotates, simultaneously driving the propeller 33. This airflow is accelerated by the wind conical cone 12 and directed toward the spiral capillary 5. The spiral capillary 5 draws water from the upper fluid tank 3 and transfers it to the lower fluid tank 4. The water surrounds the cutting fluid outlet pipe 2, absorbing heat and reducing the cutting fluid temperature, thus achieving a cooling function at the cutting fluid outlet.

[0046] The present invention arranges the impeller 34 in the cutting fluid inlet pipe 1. Its main purpose is not to generate electricity, but to cleverly utilize the potential energy of the cutting fluid to drive the impeller 34 to rotate, thereby achieving multiple functions at the same time. On the one hand, the rotation of the impeller 34 drives the propeller 33 to rotate, thereby cooling the cutting fluid outlet pipe 2; on the other hand, the belt drive system drives the cam 21 to rotate, causing the filter bucket 6 to reciprocate, thereby filtering the cutting fluid. In addition, the impeller 34 in the cutting fluid inlet pipe 1 consumes part of the potential energy of the cutting fluid, thereby reducing the flow rate of the cutting fluid inlet pipe 1. Reducing the flow rate is conducive to the precipitation and filtration of impurities in the cutting fluid, improving the impurity filtration effect, reducing the impact of impurities on subsequent processing, and helping to extend the service life of the cutting fluid and improve processing quality.

[0047] The rotation speed of the propeller 33 of the present invention is driven by the cutting fluid flow in the cutting fluid inlet pipe 1. The greater the cutting fluid flow, the faster the impeller 34 rotates, which in turn drives the propeller 33 to rotate faster, thereby realizing positive linkage control with the cutting fluid flow. In this way, when the cutting fluid flow is large, it is possible to blow air more quickly to accelerate the evaporation of water vapor, enhance the cooling effect, and ensure a stable decrease in the temperature at the cutting fluid outlet. In addition, unlike the traditional method of cooling the entire cutting fluid tank, the propeller 33 cooling system of the present invention only cools the cutting fluid outlet pipe 2. Since the temperature of the cutting fluid at the cutting fluid outlet pipe 2 is relatively high, accurately cooling it can effectively reduce the temperature of the cutting fluid near the tool, improve the cooling effect, and at the same time avoid unnecessary cooling of the entire cutting fluid tank, saving energy.

[0048] The vibration of the filter hopper 6 of the present invention is driven by the cutting fluid flow rate, making it adaptive. When the cutting fluid flow rate is high, the rotation speed of the impeller 34 increases, and the transmission mechanism causes the filter hopper 6 to vibrate faster, thereby achieving positive linkage control with the cutting fluid flow rate and improving filtration efficiency. This vibratory filtration method does not require an additional power source, has a simple structure, and is relatively low in cost. The flow rate of the cutting fluid passing through the filter hopper 6 slows down, facilitating the precipitation and separation of impurities under the action of gravity. Furthermore, the slowed flow rate prevents excessive foaming of the cutting fluid during the filtration process, further improving the filtration effect and ensuring the purity of the cutting fluid.

[0049] It should be noted that, during the actual cutting process, even if the cutting fluid flow rate output by pump 24 remains constant, the cutting fluid flow rate flowing out of the worktable 11 through the cutting fluid inlet pipe 1 is not uniform and stable due to the diverse working conditions of the milling cutter when machining parts. For example, when the milling cutter performs deep cavity milling on a workpiece, most of the cutting fluid will flow into the deep cavity of the workpiece to cool the tool, with only a small amount of cutting fluid splashing back. When a five-axis or four-axis CNC milling machine completes deep cavity milling of a workpiece and automatically flips over, the large amount of cutting fluid previously accumulated in the deep cavity of the workpiece will instantly gush out, causing an instantaneous surge in the cutting fluid flow rate.

[0050] The device of the present invention cleverly realizes the adaptive cooling and filtering functions of the cutting fluid through the coordinated linkage of the impeller 34 and the propeller 33. Specifically, when the cutting fluid flow rate increases, the rotation speed of the impeller 34 is affected by the cutting fluid flow rate in the cutting fluid inlet pipe 1 and correspondingly accelerates, and the cam 21 is driven to rotate through the belt transmission system, thereby accelerating the vibration frequency of the filter bucket 6, thereby significantly improving the filtering effect and ensuring that impurities in the cutting fluid are fully intercepted. At the same time, under the working conditions of large cutting fluid flow rate and fast circulation speed, the high-speed rotation of the impeller shaft 14 will drive the propeller 33 to rotate faster. The airflow generated by the rotation of the propeller 33 is accelerated by the wind-converging cone 12 and blown toward the spiral capillary 5, thereby enhancing the cooling effect at the cutting fluid outlet pipe 2, ensuring that the temperature of the cutting fluid near the tool is effectively controlled, and further improving the cooling performance.

[0051] The present invention places the magnetic block 7 behind the impeller 34 and in front of the oil-free cutting fluid tank 30. This placement is meticulously designed. When the cutting fluid containing iron powder flows through the impeller 34, its higher density and kinetic energy facilitate its movement, driving the impeller 34 to perform work and achieving purification and filtration of the cutting fluid. When the cutting fluid overflows into the magnetic attraction groove 26 in front of the oil-free cutting fluid tank 30, the flow rate decreases. The magnet placed there can fully exert its adsorption effect. The synergistic effect of the low flow rate and gravity precipitation allows for more effective adsorption of metal particles such as iron powder, achieving enhanced technical results.

[0052] The present invention realizes the multiple processing functions of cutting fluid through the exquisite cooperation of various components. The cutting fluid undergoes kinetic energy conversion, filtration and purification, oil-water separation, cooling and other processing links in the system in sequence, forming a closed-loop efficient processing process. The cutting fluid flow potential energy is converted into the rotational kinetic energy of the impeller 34, driving the entire mechanical transmission system to operate, realizing a self-driven and efficient operation mode. The filter bucket 6 performs swing filtration under the coordinated action of the cam 21, the connecting rod 8, and the spring 9 to ensure that impurities in the cutting fluid are fully intercepted. The magnetic suction groove 26 and the pouring plate 27 cooperate to achieve efficient adsorption of metal particles and smooth diversion of the cutting fluid, further improving the purity of the cutting fluid. The close combination of the spiral capillary 5 and the cutting fluid outlet pipe 2 utilizes the capillary principle, the siphon principle and the heat exchange principle to achieve automatic cooling of the cutting fluid without additional energy consumption, thereby reducing operating costs. The structural design of each partition, tray, and trough body ensures that the cutting fluid flows in an orderly manner in different areas, realizes effective separation and classified storage of oil and water, and improves the recycling rate of the cutting fluid.

[0053] The present invention has a simple structure and low cost. Through ingenious mechanical design and the application of fluid mechanics principles, it realizes the functions of the traditional cutting fluid box 25, such as removing miscellaneous oil, reducing the temperature of the liquid outlet, and efficiently adsorbing iron powder particles, thereby significantly improving the performance of the cutting fluid and the processing efficiency of machine tools, and has broad industrial application prospects.

[0054] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A machining cutting fluid tank, characterized in that: The invention comprises a machine tool bed (20) and a cutting fluid tank (25), wherein a workbench (11) is provided on the machine tool bed (20), a filtering mechanism is provided on the cutting fluid tank (25), a cutting fluid inlet pipe (1) is provided from the workbench (11) to the filtering mechanism, the cutting fluid tank (25) is further connected to a cutting fluid outlet pipe (2) for cooling a tool via a pump (24) and extends to the top of the workbench (11), a cooling and filtering transmission mechanism is provided on the cutting fluid inlet pipe (1), the cooling and filtering transmission mechanism converts the flow potential energy of the cutting fluid flowing through into kinetic energy to drive the filter bucket (6) to reciprocate to achieve sufficient filtration and cooling of the cutting fluid outlet pipe (2), and the cooling and filtering transmission mechanism can automatically adjust the corresponding filtering and cooling effects according to the cutting fluid flow rate in the cutting fluid inlet pipe (1).

2. A machining cutting fluid tank according to claim 1, characterized in that: The cutting fluid inlet pipe (1) is connected to an impeller housing (13); a bracket (18) is provided on the cutting fluid box (25); the bracket (18) is movably connected to the filter bucket (6) through a plurality of connecting rods (8); an impeller shaft (14) is movably connected to the bracket (18) and passes through the impeller housing (13); the impeller shaft (14) is provided with an impeller (34) that can be driven by cutting fluid in the impeller housing (13); a propeller (33) driven by the impeller (34) to cool the cutting fluid outlet pipe (2) is provided at one end of the impeller shaft (14); and a transmission mechanism driven by the impeller (34) to make the filter bucket (6) reciprocate under the connecting rod (8) is connected to the other end of the impeller shaft (14).

3. A machining cutting fluid tank according to claim 2, characterized in that: The transmission mechanism comprises a camshaft (23) movably connected to the bracket (18), a cam (21) provided at one end of the camshaft (23) and abutting against the filter bucket (6), a large pulley (16) provided at the other end of the camshaft (23), a small pulley (15) provided at the end of the impeller shaft (14), and a belt (17) connecting the large pulley (16) and the small pulley (15); the impeller (34) rotates through the impeller shaft (14) to drive the small pulley (15), the large pulley (16) and the cam (21) to rotate; the cam (21) rotates and squeezes the side of the filter bucket (6), so that the filter bucket (6) swings around the connecting rod mounting shaft (32) driven by the connecting rod (8), thereby achieving sufficient filtration of the cutting fluid.

4. A machining cutting fluid tank according to claim 3, characterized in that: The cutting fluid outlet pipe (2) is wound with a spiral capillary (5) at a position close to the propeller (33), and the two ends of the spiral capillary (5) are respectively connected to an upper liquid receiving trough (3) and a lower liquid receiving trough (4), so as to utilize the capillary principle, the siphon principle and the heat exchange principle to cool the cutting fluid.

5. A machining cutting fluid tank according to any one of claims 1 to 3, characterized in that: A spring (9) is further provided laterally between the filter hopper (6) and the bracket (18) to elastically swing the filter hopper (6).

6. A machining cutting fluid tank according to any one of claims 1 to 3, characterized in that: The end of the cutting fluid inlet pipe (1) is above the filter bucket (6) and is provided with a liquid separator (22).

7. A machining cutting fluid tank according to any one of claims 1 to 3, characterized in that: The interior of the cutting fluid box (25) is divided into an oil-containing cutting fluid tank (28) and an oil-free cutting fluid tank (30), and a first partition (36) and a second partition (37) are sequentially provided from the oil-containing cutting fluid tank (28) to the oil-free cutting fluid tank (30), wherein a gap is left between the first partition (36) and the bottom of the oil-containing cutting fluid tank (28), and the height of the top of the second partition (37) is lower than the height of the top of the first partition (36).

8. The machining cutting fluid tank according to claim 7, characterized in that: A magnetic attraction groove (26) is provided on the top of the second partition (37) at a side away from the first partition (36).

9. The machining cutting fluid tank according to claim 8, characterized in that: A liquid pouring plate (27) is provided on the top of the second partition (37) on a side of the magnetic suction groove (26) away from the first partition (36).

10. A machining cutting fluid tank according to claim 2 or 3, characterized in that: A sealing cover (35) is provided on the outside of the impeller housing (13).

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