High-precision water tank filtering device for numerical control machine tool

Abstract

The application relates to a high-precision water tank filtering device of a numerical control machine tool, which comprises a water tank body, a collecting cavity, a rough filtering cavity and a fine filtering cavity are arranged in the water tank body, the collecting cavity and the rough filtering cavity are communicated with each other through a filter screen, a filter barrel is communicated with the rough filtering cavity and the fine filtering cavity, and a high-pressure pump assembly is arranged and used for pumping the coolant in the water tank body to the filter barrel or the machine tool. The coolant is doubly filtered through the filter screen and the filter barrel, the coolant preliminarily filtered through the filter screen enters the rough filtering cavity, the coolant in the rough filtering cavity is used for flushing the machine tool, the filter barrel is used for filtering the coolant in the rough filtering cavity for the second time, the coolant filtered for the second time enters the fine filtering cavity and is used for machine tool processing and cooling, the probability of pipeline and nozzle blockage caused by impurities is reduced, the stable operation of the numerical control machine tool is guaranteed, and the pressure maintaining structure of the filter barrel can guarantee the filtering efficiency of the coolant.

Description

Technical Field

[0001] This application relates to the field of machine tool technology, and in particular to a high-precision water tank filtration device for CNC machine tools. Background Technology

[0002] During the CNC machine tool processing, if the water tank filtration device is not precise enough, impurities from the processing may remain in the coolant. These impurities may circulate to the processing area with the coolant, causing scratches, wear, and other adverse effects on the surface of the processed product, thus affecting the processing accuracy and product surface quality.

[0003] like Figure 4 and Figure 5 As shown, in the existing filtration device, when coolant carrying impurities enters the chip collection tray, a baffle plate prevents coolant from splashing out, and the chip collection tray simultaneously performs preliminary filtration of the impurities in the coolant. The coolant then enters the water tank body, passes through a nine-mesh filter screen, and is finally pumped by a high-pressure pump to the CNC machine tool for processing and cooling. However, the precision of the above filter screens is all 120 mesh (i.e., the diameter of a single filter hole is 0.125 mm), which only performs simple filtration of the coolant. It cannot filter impurities smaller than 0.125 mm. If the diameter of the filter holes is simply reduced, the flow rate of the filtered coolant cannot meet the machine tool's coolant requirements. Utility Model Content

[0004] Therefore, it is necessary to provide a high-precision water tank filtration device for CNC machine tools to overcome the defects mentioned in the background art.

[0005] A high-precision water tank filtration device for CNC machine tools, comprising: The water tank body is provided with a collection chamber, a coarse filtration chamber and a fine filtration chamber, and the collection chamber and the coarse filtration chamber are interconnected through a filter screen. The filter barrel, which is connected to the coarse filtration chamber and the fine filtration chamber, has an internal pressure-maintaining structure; and A high-pressure pump assembly is used to draw coolant from the water tank body to a filter barrel or machine tool.

[0006] As a preferred embodiment of the high-precision water tank filtration device for CNC machine tools in this utility model, a chip collection disc is provided above the collection chamber, a water baffle is provided on one side of the top of the chip collection disc, and a filter frame is provided on the other side of the top.

[0007] As a preferred embodiment of the high-precision water tank filtration device for CNC machine tools in this utility model, the filter screen is provided with multiple screens.

[0008] As a preferred embodiment of the high-precision water tank filtration device for CNC machine tools in this utility model, the filter barrel is provided with a filter cloth bag inside.

[0009] As a preferred embodiment of the high-precision water tank filtration device for CNC machine tools in this utility model, the filtration accuracy of the filter bag is not less than 0.02mm.

[0010] As a preferred embodiment of the high-precision water tank filtration device for CNC machine tools in this utility model, the high-pressure pump assembly includes a bed flushing high-pressure pump, a filter barrel high-pressure pump, and a machining cooling high-pressure pump. The bed flushing high-pressure pump and the filter barrel high-pressure pump are located above the coarse filtration chamber. The filter barrel high-pressure pump is connected to the filter barrel through an oil inlet pipe, and the filter barrel is connected to the fine filtration chamber through an oil outlet pipe. The machining cooling high-pressure pump is located above the fine filtration chamber.

[0011] As a preferred embodiment of the high-precision water tank filtration device for CNC machine tools in this utility model, a liquid level detection switch is provided in the fine filtration chamber.

[0012] The beneficial effects of this utility model are: This invention employs a dual filtration system for coolant by using a filter screen and a filter barrel. The coolant, after initial filtration by the filter screen, enters the coarse filtration chamber, where it is used to rinse the machine tool. The filter barrel then performs a secondary filtration on the coolant in the coarse filtration chamber, after which it enters the fine filtration chamber for machine tool processing cooling. This reduces the probability of pipe and nozzle blockage caused by impurities, thereby ensuring the stable operation of the CNC machine tool. The pressure-holding structure of the filter barrel ensures the filtration efficiency of the coolant. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of the filtering device in the embodiments of this application; Figure 2 This is an exploded view of the filter device in an embodiment of this application; Figure 3 This is a schematic diagram of the filtration flow direction of the water tank body in the embodiments of this application; Figure 4 This is a schematic diagram of an existing filtration device; Figure 5 This is a schematic diagram of the filtration flow direction in the water tank of an existing filtration device.

[0015] Explanation of reference numerals in the attached figures: 1000, Water tank body; 1100, Debris collection tray; 1200, Water baffle; 1300, Filter frame; 2000, filter canister; 3000, High-pressure pump assembly; 3100, Bed flushing high-pressure pump; 3200, Filter barrel high-pressure pump; 3300, Machining cooling high-pressure pump; 3400, Oil inlet pipe; 3500, Oil outlet pipe; 3600, First mounting plate; 3700, Second mounting plate; 4000, filter screen; 5000, Liquid level detection device; 5100, Liquid level detection switch; 5200, Third mounting plate. Detailed Implementation

[0016] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application 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 application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0017] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "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 based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not 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 application.

[0018] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0019] In this application, unless otherwise expressly 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 expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0020] In this application, unless otherwise expressly 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.

[0021] 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.

[0022] Example This embodiment provides a high-precision water tank filtration device for CNC machine tools, such as... Figure 1 and Figure 2 As shown, the system includes a water tank body 1000, a filter barrel 2000, and a high-pressure pump assembly 3000. The water tank body 1000 is provided with a collection chamber, a coarse filtration chamber, and a fine filtration chamber. The collection chamber and the coarse filtration chamber are interconnected through a filter screen 4000. The filter barrel 2000 is connected to the coarse filtration chamber and the fine filtration chamber. The high-pressure pump assembly 3000 is used to draw coolant from the water tank body 1000 to the filter barrel 2000 or the machine tool.

[0023] The coolant to be filtered is collected in the collection chamber, and then enters the coarse filtration chamber after preliminary filtration through the filter screen 4000. The coolant in the coarse filtration chamber can be used for low-precision or flushing operations by the high-pressure pump assembly 3000, or it can be finely filtered by the filter barrel 2000 and then enters the fine filtration chamber for high-precision operations. The filter barrel 2000 has a pressure-holding structure inside to ensure the filtration efficiency of the coolant.

[0024] In this embodiment, a chip collection disc 1100 is installed above the collection chamber, a baffle plate 1200 is provided on one side of the top of the chip collection disc 1100, and a filter frame 1300 is provided on the other side of the top.

[0025] After use, the coolant flows into the collection chamber through the filter frame 1300 and the chip collection plate 1100. The two filters and collects most of the machining impurities in the coolant after use. The baffle plate 1200 prevents the collected coolant from splashing everywhere.

[0026] In this embodiment, multiple filter screens 4000 are provided, and the diameter of each filter hole of the filter screen 4000 is 0.125 mm. After the used coolant enters the collection chamber, it is filtered by the filter screen 4000 and then enters the coarse filter chamber at the fastest speed.

[0027] In this embodiment, the filter tank 2000 is equipped with a filter bag inside. The filter bag has a filtration accuracy of 0.02mm. Since the internal structure is pressure-holding, the filtration speed will not be affected by the filter bag having too high a filtration accuracy.

[0028] In this embodiment, the high-pressure pump assembly 3000 includes a bed flushing high-pressure pump 3100, a filter barrel high-pressure pump 3200, and a processing cooling high-pressure pump 3300. The bed flushing high-pressure pump 3100 and the filter barrel high-pressure pump 3200 are disposed above the coarse filtration chamber. The filter barrel high-pressure pump 3200 is connected to the filter barrel 2000 through an oil inlet pipe 3400. The filter barrel 2000 is connected to the fine filtration chamber through an oil outlet pipe 3500. The processing cooling high-pressure pump 3300 is disposed above the fine filtration chamber.

[0029] The bed flushing high-pressure pump 3100 and the filter barrel high-pressure pump 3200 are installed above the coarse filtration chamber via the first mounting plate 3600. The bed flushing high-pressure pump 3100 is used to extract coolant from the coarse filtration chamber for operation. The filter barrel high-pressure pump 3200 is connected to the filter barrel 2000 via the oil inlet pipe 3400 and is used to extract coolant from the coarse filtration chamber into the filter barrel 2000 for filtration. The filter barrel 2000 is connected to the fine filtration chamber via the oil outlet pipe 3500 and the finely filtered coolant is transported to the fine filtration chamber. The machining cooling high-pressure pump 3300 is installed above the fine filtration chamber via the second mounting plate 3700 and is used to extract coolant from the fine filtration chamber for operation.

[0030] In this embodiment, a liquid level detection device 5000 is provided in the fine filtration chamber to detect the volume of coolant in the fine filtration chamber. It includes a liquid level detection switch 5100, which is set above the fine filtration chamber through a third mounting plate 5200. When the coolant is too low, the liquid level detection device 5000 controls the filter tank high-pressure pump 3200 to start and draw the coolant in the coarse filtration chamber to the filter tank 2000. After fine filtration, the coolant in the filter tank 2000 is replenished to the fine filtration chamber.

[0031] The working principle of this utility model is as follows: When the coolant flows into the filter frame 1300, the baffle plate 1200 prevents the coolant from splashing out. Because the filter frame 1300 is equipped with a filter screen, it performs preliminary filtration of the coolant and collects impurities. After the coolant enters the collection chamber, it passes through three filter screens 4000 inside the water tank. Then, the bed flushing high-pressure pump 3100 operates, pumping the coolant that has undergone simple filtration in the coarse filtration chamber onto the machine tool for rinsing the machine tool body. For coolant with high cooling requirements for the workpieces, the high-pressure pump 3100 in the filter tank... The coolant, after passing through the high-pressure inlet pipe 3400, enters the filter barrel 2000 for high-precision filtration. Then, it enters the water-based filtration chamber through the high-pressure outlet pipe 3500 for separate storage. The high-pressure cooling pump 3300 then operates, allowing the coolant to enter the machine tool for processing and cooling. The liquid level detection device 5000 is used to detect the coolant after high-precision filtration. When the coolant level is too high or too low, the liquid level detection device 5000 will provide a signal to the system, thereby controlling the operation of the filter barrel high-pressure pump 3200.

[0032] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0033] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A high-precision water tank filtration device for CNC machine tools, characterized in that, include: The water tank body is provided with a collection chamber, a coarse filtration chamber and a fine filtration chamber, and the collection chamber and the coarse filtration chamber are interconnected through a filter screen. A filter barrel, which is connected to the coarse filtration chamber and the fine filtration chamber, and has an internal pressure-maintaining structure. as well as A high-pressure pump assembly is used to draw coolant from the water tank body to a filter barrel or machine tool.

2. The high-precision water tank filtration device for CNC machine tools according to claim 1, characterized in that, A chip collection disc is provided above the collection chamber, and a baffle plate is provided on one side of the top of the chip collection disc, and a filter frame is provided on the other side of the top.

3. The high-precision water tank filtration device for CNC machine tools according to claim 1, characterized in that, The filter screen is provided in multiple ways.

4. The high-precision water tank filtration device for CNC machine tools according to claim 1, characterized in that, The filter canister is equipped with a filter cloth bag inside.

5. The high-precision water tank filtration device for CNC machine tools according to claim 4, characterized in that, The filtration accuracy of the filter bag is not less than 0.02mm.

6. The high-precision water tank filtration device for CNC machine tools according to claim 1, characterized in that, The high-pressure pump assembly includes a bed flushing high-pressure pump, a filter barrel high-pressure pump, and a machining cooling high-pressure pump. The bed flushing high-pressure pump and the filter barrel high-pressure pump are located above the coarse filtration chamber. The filter barrel high-pressure pump is connected to the filter barrel through an oil inlet pipe, and the filter barrel is connected to the fine filtration chamber through an oil outlet pipe. The machining cooling high-pressure pump is located above the fine filtration chamber.

7. The high-precision water tank filtration device for CNC machine tools according to claim 6, characterized in that, A liquid level detection switch is installed inside the fine filtration chamber.

Images