Multi-stage filtering numerical control machine tool comprehensive water tank

Abstract

The utility model discloses a multi -stage filtration's numerical control machine tool comprehensive water tank, include: water tank body, the water tank body inside is formed with "U" character type cutting fluid flow path, is provided with first filter groove, second filter groove, third filter groove and pumping tank in water tank body along flow path in proper order, and the first filter groove top places has the chip tray, and the chip tray top places has the chip receiving box, first filter groove with second filter groove between detachable connection has the front filter screen, second filter groove with third filter groove between sliding fit has the chip receiving box, third filter groove with pumping tank between detachable connection has the rear filter screen, and the pumping tank top is provided with the water pump, through above -mentioned mode, the utility model can carry out high -purity filtration to cutting fluid and can clean the iron fillings and other impurities under the condition of not stopping the machine quickly.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary equipment technology for CNC machine tools, and in particular to a multi-stage filtration integrated water tank for CNC machine tools. Background Technology

[0002] In the field of CNC machine tools, cutting fluid tanks play a crucial role in cooling, lubrication, chip removal, and cleaning. However, existing machine tool water tanks generally suffer from significant drawbacks: First, insufficient filtration stages result in high impurity levels in the cutting fluid, hindering effective purification. This not only accelerates pump wear and may even lead to pump burnout, but also causes continuous damage to cutting tools, workpieces, and machine tool piping. Second, cleaning impurities such as metal shavings is complex and cumbersome, often requiring component removal or machine shutdown, significantly reducing maintenance efficiency and increasing working hours. Although some improvements have been attempted (such as increasing the number of filtration stages or installing auxiliary water tanks), they have not yet effectively addressed the issues of low filtration accuracy and inconvenient cleaning. Utility Model Content

[0003] The main technical problem solved by this utility model is to provide a multi-stage filtration integrated water tank for CNC machine tools, which can filter cutting fluid with high purity and quickly remove impurities such as iron filings without stopping the machine.

[0004] To solve the above-mentioned technical problems, the present invention provides a multi-stage filtration integrated water tank for CNC machine tools, comprising: a water tank body, with a U-shaped cutting fluid flow path formed inside the water tank body; a first filter tank, a second filter tank, a third filter tank, and a water pumping tank sequentially arranged along the flow path within the water tank body; a chip baffle plate placed above the first filter tank, and a chip collection box placed on the chip baffle plate; a front filter screen detachably connected between the first filter tank and the second filter tank; a chip baffle box slidably fitted between the second filter tank and the third filter tank; a rear filter screen detachably connected between the third filter tank and the water pumping tank; and a water pump installed on the water pumping tank.

[0005] Preferably, the second filter tank is equipped with an oil-water separation device, which includes an oil-water separator, an oil-water separation box, an oil separator box adjustment pipe, and an oil receiving box. The oil-water separator is installed on the second filter tank. The oil-water separator uses its own disc to attach oil sludge from the second filter tank to the disc and then flows into the oil-water separation box through the sludge outlet. The upper part of the oil-water separation box has an oil leakage outlet. The oil separator box adjustment pipe is connected to the second filter tank. The opening at the upper end of the oil separator box adjustment pipe is lower than the height of the oil leakage outlet. The oil sludge floating on the top of the oil-water separation box flows into the oil receiving box through the oil leakage outlet. The oil receiving box is hung on the oil-water separation box.

[0006] Preferably, a limiting slide is formed between the second filter tank and the third filter tank, and a handle is provided on the chip box. The chip box slides in conjunction with the limiting slide, so that the chip box can be quickly removed and put into the chip box when cleaning is required.

[0007] Preferably, a first slot is formed between the first filter tank and the second filter tank, and the front filter screen engages with the first slot.

[0008] Preferably, a second slot is formed between the third filter tank and the water pumping tank, and the rear filter screen engages with the second slot.

[0009] Preferably, the chip collection box is equipped with a handle for quick removal and placement of chips.

[0010] Preferably, the upper part of the first filter tank has an overload vent, which is connected to the second filter tank.

[0011] Preferably, the bottom of the first filter tank is provided with a drain outlet, which is sealed with a plug during use.

[0012] Preferably, a liquid level display window is provided on the side wall of the water tank.

[0013] Preferably, the length of the chip receiving box is greater than the length of the chip blocking box, so that the chip receiving box can be moved and adjusted on the chip blocking plate.

[0014] The beneficial effects of this utility model are as follows: By constructing a five-stage filtration U-shaped flow path within the water tank body, the fluid sequentially undergoes primary filtration via a chip collection box, secondary filtration via a chip baffle, tertiary filtration via a pre-filter, quaternary filtration via a chip baffle, and quintuple filtration via a post-filter, significantly improving overall performance. This five-stage progressive filtration results in higher cutting fluid purity, completely eliminating damage to tools, workpieces, and the water pump from impurities. The pull-out chip collection box and the chip baffle with a handle are quickly disassembled and assembled via a limiting slide, enabling cleaning of metal chips without stopping the machine, thus improving maintenance efficiency. The overload relief port of the first filter tank allows for filtration when the fluid level exceeds the limit. The cutting fluid is directly fed into the second filter tank, simultaneously addressing overflow contamination and the risk of water pump dry burning; the water tank level display window enables monitoring without opening the cover, ensuring stable system operation; the oil-water separator effectively removes some floating oil through disc adsorption of oil, stratification in the oil-water separation box, and oil discharge to the oil collection box via the oil drain port; the chip collection box is longer than the chip baffle box and can be adjusted laterally on the chip baffle plate, adapting to the chip discharge port positions of multiple models and improving versatility; the slotted front and rear filters, along with the drain port design, further reduce maintenance and handling costs, achieving optimization throughout the entire life cycle. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is an exploded view of this utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the water tank body of this utility model.

[0018] The components in the attached diagram are labeled as follows:

[0019] 1. First filter tank; 2. Second filter tank; 3. Third filter tank; 4. Water pumping tank; 5. Chip baffle; 6. Chip collection box; 7. Front filter screen; 8. Chip baffle box; 9. Rear filter screen; 10. Water pump; 11. Oil-water separator; 111. Sewage outlet; 12. Oil-water separator box; 121. Oil leak outlet; 13. Oil separator box regulating pipe; 14. Oil collection box; 15. Limiting slide; 16. Overload relief outlet; 17. Water outlet; 18. Water tank body. Detailed Implementation

[0020] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0021] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0025] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0026] Unless otherwise specified, physical quantities in formulas should be understood as basic quantities of SI base units, or derived quantities derived from basic quantities through mathematical operations such as multiplication, division, differentiation, or integration.

[0027] Example:

[0028] refer to Figures 1-3A multi-stage filtration integrated water tank for CNC machine tools includes: a water tank body 18, with a U-shaped cutting fluid flow path formed inside the water tank body 18. Along the flow path, a first filter tank 1, a second filter tank 2, a third filter tank 3, and a water extraction tank 4 are sequentially arranged within the water tank body 18. A chip baffle 5 is placed above the first filter tank 1, and a chip collection box 6 is placed on the chip baffle 5. Both the chip baffle 5 and the chip collection box 6 have sieve holes at their bottoms. The cutting fluid to be filtered first enters the chip collection box 6 for first-stage filtration, then enters the chip baffle 5 for second-stage filtration, and finally flows into the first filter tank 1. A pre-filter 7 is detachably connected between the first filter tank 1 and the second filter tank 2, allowing for third-stage filtration through the pre-filter 7. A chip baffle 8 is slidably fitted between the second filter tank 2 and the third filter tank 3, allowing for fourth-stage filtration through the chip baffle 8. A rear filter screen 9 is detachably connected between the third filter tank 3 and the water pumping tank 4, allowing for fifth-stage filtration. A water pump 10 is installed on the water pumping tank 4. Finally, the cutting fluid flows into the water pumping tank 4 and is transported by the water pump 10 to the spindle, cutting tools, and other components for cooling, rinsing, and lubrication. The filtration levels of the chip baffle 5, chip collection box 6, chip baffle 5, front filter screen 7, chip baffle box 8, and rear filter screen 9 increase progressively. Combined with the "U"-shaped structure of the water tank body, this ensures high purity of the cutting fluid and greatly prevents continuous damage to the water pump 10, water pipes, machining parts, and other machine tool components caused by excessive impurities in the cutting fluid. The chip baffle 5 and chip collection box 6 are placed directly on the water tank body 18, making it convenient and quick to clean iron filings and other waste materials without removing any parts; the chip collection box can be directly removed. The chip collection box 6 is equipped with a handle for quick removal and placement.

[0029] refer to Figures 1-3 To reduce oil contamination in the cutting fluid, a cover plate is bolted to the second filter tank 2. Alternatively, a cover plate can be installed on other filter tanks. An oil-water separation device is bolted to the cover plate of the second filter tank 2. This device includes an oil-water separator 11, an oil-water separation box 12, an oil separator box adjustment pipe 13, and an oil receiving box 14. The oil-water separator 11 is bolted to the second filter tank 2. During the rotation of its own disc driven by a motor, the oil-water separator 11 adheres the oil contamination in the second filter tank 2 to the disc and flows into the oil-water separation box 12 through the drain outlet 111. The upper part of the oil-water separation box 12 has an oil drain outlet 121. The oil separator box adjustment pipe 13 is connected to the second filter tank 2. The opening at the upper end of the oil separator box adjustment pipe 13 is lower than the height of the oil drain outlet 121. The oil contamination floating on top of the oil-water separation box 12 flows into the oil receiving box 14 through the oil drain outlet 121. The oil receiving box 14 is hung on the oil-water separation box 12.

[0030] refer to Figures 1-3The oil-water separator 11 carries the oil-containing cutting fluid through a disc into the oil-water separation box 12. Due to density differences, the oil and cutting fluid separate into layers, with the oil at the top and the cutting fluid at the bottom. By adjusting the oil separator adjustment pipe 13, the oil is positioned slightly below the oil drain port 121. The cutting fluid flows back to the second filter tank 2 through the internal pipe of the oil separator adjustment pipe 13, while the oil flows into the oil receiving box 14 through the oil drain port 121, thus completing the entire oil-water separation process.

[0031] refer to Figures 1-3 To improve work efficiency without stopping the machine tool, a limiting slide 15 is formed between the second filter tank 2 and the third filter tank 3. A handle is installed on the chip box 8. The chip box 8 slides in conjunction with the limiting slide 15, so that when it is necessary to remove and empty the iron filings and other impurities for cleaning, the chip box 8 can be quickly taken out and put in through the handle, so that the machine tool can be processed quickly and efficiently without stopping the machine tool.

[0032] refer to Figures 1-3 The chip baffle 8 has openings on all four sides to maximize the flow of cutting fluid and prevent clogging. The chip collection box 6 is longer than the chip baffle 8, so the chip collection box 6 can move left and right on the chip baffle 5 to adjust its position relative to the chip baffle 5. This allows for a wide operating range and applicability to various machine models, making it highly versatile.

[0033] refer to Figures 1-3 A first slot is formed between the first filter tank 1 and the second filter tank 2, and the front filter screen 7 engages with the first slot. A second slot is formed between the third filter tank 3 and the water pumping tank 4, and the rear filter screen 9 engages with the second slot. Thus, the filter screens inside the water tank body 18 are assembled using a slot-type assembly, allowing the front filter screen 7 and the rear filter screen 9 to be removed immediately without disassembling other parts. If further stabilization of the positions of the front filter screen 7 and the rear filter screen 9 is desired, they can be tightened with bolts.

[0034] refer to Figures 1-3 The upper part of the first filter tank 1 is provided with an overload vent 16, which is connected to the second filter tank 2. This prevents the cutting fluid from overflowing from the edge of the water tank body 18 and polluting the equipment and environment. Also, if too much cutting fluid remains in the first filter tank 1, it will cause the water level in the water pump 10 pumping tank 4 to be insufficient, causing the water pump 10 to run dry and burn out. The overload vent 16 diverts the flow to ensure that the water pump 10 pumping tank 4 always maintains the minimum safe water level.

[0035] The bottom of the first filter tank 1 is provided with a drain outlet 17. When in use, the drain outlet 17 is sealed with a plug. When the water tank is not needed or is transported over a long distance, the cutting fluid inside the water tank body 18 can be drained by removing the plug, thus ensuring the portability of the water tank body 18.

[0036] The four side walls of the water tank are equipped with liquid level display windows to monitor the liquid level in real time, prevent equipment damage, and prevent overflow caused by excessive liquid level. The display windows help operators control the liquid level within a safe range and also allow for direct visual monitoring through the display windows on the side walls, saving operation time each time the lid is opened.

[0037] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A multi-stage filtration integrated water tank for CNC machine tools, characterized in that, include: The water tank body (18) has a U-shaped cutting fluid flow path inside. Along the flow path, a first filter tank (1), a second filter tank (2), a third filter tank (3), and a water pumping tank (4) are sequentially arranged inside the water tank body (18). A chip baffle (5) is placed above the first filter tank (1), and a chip collection box (6) is placed on the chip baffle (5); A front filter screen (7) is detachably connected between the first filter tank (1) and the second filter tank (2); A chip baffle (8) is slidably fitted between the second filter tank (2) and the third filter tank (3); A rear filter screen (9) is detachably connected between the third filter tank (3) and the water pumping tank (4); A water pump (10) is installed on the water tank (4).

2. The multi-stage filtration integrated water tank for CNC machine tools according to claim 1, characterized in that: An oil-water separation device is provided on the second filter tank (2). The oil-water separation device includes an oil-water separator (11), an oil-water separation box (12), an oil separator box adjustment pipe (13), and an oil receiving box (14). The oil-water separator (11) is installed on the second filter tank (2). The oil-water separator (11) uses its own disc to attach the oil in the second filter tank (2) to the disc and flows into the oil-water separation box (12) through the sewage outlet (111). The upper part of the oil-water separation box (12) is provided with an oil drain outlet (121). The oil separator box adjustment pipe (13) is connected to the second filter tank (2). The opening at the upper end of the oil separator box adjustment pipe (13) is lower than the height of the oil drain outlet (121). The oil floating in the oil-water separation box (12) flows into the oil receiving box (14) through the oil drain outlet (121). The oil receiving box (14) is hung on the oil-water separation box (12).

3. The multi-stage filtration integrated water tank for CNC machine tools according to claim 1, characterized in that: A limiting slide (15) is formed between the second filter tank (2) and the third filter tank (3). A handle is provided on the chip box (8). The chip box (8) slides in cooperation with the limiting slide (15), so that the chip box (8) can be quickly taken out and put into the chip box (8) by the handle when cleaning is required.

4. The multi-stage filtration integrated water tank for CNC machine tools according to claim 1, characterized in that: A first slot is formed between the first filter tank (1) and the second filter tank (2), and the front filter (7) engages with the first slot.

5. The multi-stage filtration integrated water tank for CNC machine tools according to claim 1, characterized in that: A second slot is formed between the third filter tank (3) and the water pumping tank (4), and the rear filter screen (9) engages with the second slot.

6. The multi-stage filtration integrated water tank for CNC machine tools according to claim 1, characterized in that: The chip collection box (6) is provided with a handle so that it can be quickly removed and placed in the chip collection box (6).

7. The multi-stage filtration integrated water tank for CNC machine tools according to claim 1, characterized in that: The upper part of the first filter tank (1) is provided with an overload vent (16), which is connected to the second filter tank (2).

8. The multi-stage filtration integrated water tank for CNC machine tools according to claim 1, characterized in that: The bottom of the first filter tank (1) is provided with a drain outlet (17), which is sealed with a plug during use.

9. A multi-stage filtration integrated water tank for CNC machine tools according to claim 1, characterized in that: A liquid level display window is provided on the side wall of the pumping tank (4).

10. A multi-stage filtration integrated water tank for CNC machine tools according to claim 1, characterized in that: The length of the chip receiving box (6) is greater than the length of the chip blocking box (8), so that the chip receiving box (6) can be moved and adjusted on the chip blocking plate (5).

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