A deep hole drilling machine chip oil filtering device

Abstract

The deep hole drilling machine chip oil filtering device is characterized in that: the filtering barrel is internally provided with the precision filtering bag, the grid layer and the sealing cover, the precision filtering bag is fixed in the filtering barrel to finely filter the chip oil, the grid layer is arranged between the filtering barrel and the precision filtering bag, the bottom height of the grid layer is less than the height of the lower oil pump outlet, the lower part of the grid layer is communicated with the lower oil pump outlet, and the sealing cover is arranged on the top of the filtering barrel and is sealingly connected with the filtering barrel.

Description

Technical Field

[0001] This utility model relates to the field of cutting oil filtration technology, specifically to a cutting oil filtration device for deep hole drilling machines. Background Technology

[0002] A cutting oil filter is a device used to remove iron filings from cutting oil, keeping the oil clean. During CNC machine tool processing, a large amount of oil-water mixture containing iron filings is often discharged. To recover some of the recyclable components, a cutting oil filter is needed to filter the iron filings for subsequent recycling.

[0003] Currently, the common design of CNC machine tools is that the cutting oil filter is open. The filtering of iron filings and waste mainly relies on a sheet metal pocket above the oil tank. The bottom of the pocket has some holes, which results in very low filtration accuracy. It can only perform coarse filtration and is not intelligent. Utility Model Content

[0004] This utility model provides a chip oil filtration device for deep hole drilling machines, which aims to solve the problems of existing chip oil filtration devices having the risk of contamination and low filtration accuracy.

[0005] This utility model provides a chip oil filtration device for a deep hole drilling machine, including...

[0006] A filter barrel includes a filter barrel body, an upper oil pump inlet, and a lower oil pump outlet. The upper oil pump inlet and the lower oil pump outlet are both fixed on the outer side wall of the filter barrel body. The upper oil pump inlet is located at the upper part of the filter barrel body and communicates with the filter barrel. The lower oil pump outlet is located at the lower part of the filter barrel body and communicates with the filter barrel.

[0007] A precision filter bag, which is fixed inside the filter barrel to finely filter the cutting oil;

[0008] A mesh layer is disposed between the filter barrel and the precision filter bag. The mesh layer is used to support the precision filter bag. The bottom height of the mesh layer is less than the height of the lower-level oil pump outlet. The lower part of the mesh layer is connected to the lower-level oil pump outlet.

[0009] A sealing cap is disposed on the top of the filter barrel and is sealed to the filter barrel.

[0010] In some possible embodiments, the deep hole drilling machine chip oil filtration device further includes a bag pressure ring cover, the top of which is connected to the bottom of the sealing cover, and the bottom of which is connected in sequence to the edge of the precision filter bag and the top of the filter barrel to fix the precision filter bag inside the filter barrel.

[0011] In some possible embodiments, the deep hole drilling machine chip oil filtration device further includes a sealing ring disposed between the sealing cover and the filter barrel for sealing the sealing cover and the filter barrel.

[0012] In some possible embodiments, the deep hole drilling machine chip oil filtration device further includes an annular snap-fit ​​screw, one end of which is fixedly connected to the filter barrel, and the other end of which is fastened to the top of the sealing cover to press the sealing cover and the filter barrel together.

[0013] In some possible embodiments, the deep hole drilling machine chip oil filtration device further includes a pressure gauge and a pressure switch, which are disposed on the top of the sealing cover. The pressure gauge can display the internal pressure of the filter barrel, and the pressure switch is used to generate an alarm prompt based on the internal pressure of the filter barrel.

[0014] In some possible embodiments, the deep hole drilling machine cutting oil filtration device further includes a drain valve, which is fixed on the outer wall of the filter barrel body and communicates with the filter barrel. The distance between the drain valve and the inlet of the upper-level oil pump is greater than the distance between the inlet of the upper-level oil pump and the outlet of the lower-level oil pump.

[0015] In some possible embodiments, the precision filter bag has a filtration accuracy of less than 20 micrometers.

[0016] In some possible embodiments, oil-permeable pores are formed on the mesh layer.

[0017] In some possible embodiments, the mesh layer is made of a metallic material.

[0018] In some possible embodiments, the deep hole drilling machine chip oil filtration device further includes a cleaning device and a displacement rod, the cleaning device and the displacement rod being disposed inside the filter barrel, the displacement rod being fixedly connected to the bottom of the sealing cover, and the cleaning device being fixed on the displacement rod and capable of moving up and down along the displacement rod.

[0019] This utility model provides a deep hole drilling machine chip oil filtration device, including a filter barrel, which comprises a filter barrel body, an upper oil pump inlet, and a lower oil pump outlet. Both the upper and lower oil pump inlets are fixed to the outer wall of the filter barrel body. The upper oil pump inlet is located at the upper part of the filter barrel body and communicates with it, while the lower oil pump outlet is located at the lower part of the filter barrel body and communicates with it. A precision filter bag is fixed inside the filter barrel for fine filtration of the chip oil. A mesh layer is positioned between the filter barrel and the precision filter bag, supporting the filter bag. The bottom height of the mesh layer is less than the height of the lower oil pump outlet, and the lower part of the mesh layer communicates with the lower oil pump outlet. A sealing cap is located at the top of the filter barrel and is sealed to it. This utility model improves the filtration accuracy of the deep hole drilling machine chip oil filtration device by using a precision filter bag, and the sealing cap creates a sealed structure between the cap and the filter barrel, preventing contamination due to external factors during the filtration process. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a cross-sectional view of an embodiment of the deep hole drilling machine chip oil filtration device provided in this utility model;

[0022] Figure 2 This is a schematic diagram showing the positional relationship of the sealing rings provided in this embodiment of the utility model. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0024] In the description of this utility model, 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," and "counterclockwise," 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. They 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 utility model. 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, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for communication; 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0027] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0028] Please refer to Figure 1 The oil filtration device for deep hole drilling machine chips provided by this utility model mainly includes:

[0029] The filter barrel 10 includes a filter barrel body 101, an upper oil pump inlet 102, and a lower oil pump outlet 103. Both the upper oil pump inlet 102 and the lower oil pump outlet 103 are fixed to the outer wall of the filter barrel body 101. The upper oil pump inlet 102 is located at the upper part of the filter barrel 10 and communicates with it, while the lower oil pump outlet 103 is located at the lower part of the filter barrel 10 and communicates with it. The cutting oil to be filtered enters the filter barrel body 101 through the upper oil pump inlet 102 and flows downwards under its own gravity to the filter bag for filtration. After filtration, the cutting oil flows out through the lower oil pump outlet 103 at the lower part of the filter barrel, thus completing the filtration process. The specific filtration process takes place inside the filter barrel 10. Specifically, the deep hole drilling machine cutting oil filtration device also includes a precision filter bag 20, which is fixed inside the filter barrel 10 for fine filtration of the cutting oil.

[0030] The precision filter bag in this invention has a filtration accuracy of less than 20 micrometers, meaning it can filter out impurities with a size of not less than 20 micrometers. In other embodiments, the filtration accuracy of the precision filter bag 20 can also be set according to actual needs, and the material of the filter bag 20 can also be selected according to actual needs; this invention does not impose any limitations. In some embodiments of this invention, multiple precision filter bags 20 can be provided, and the multiple precision filter bags 20 have different filtration accuracies, so as to filter the cutting oil multiple times, gradually increasing the filtration accuracy, so as to ensure that the impurity concentration in the cutting oil flowing out from the downstream oil pump outlet 103 is reduced.

[0031] After the cutting oil passes through the filter bag 20, impurities such as iron slag and iron powder are retained in the filter bag 20. The filtered cutting oil then flows out of the filter bag 20 and exits from the downstream oil pump outlet 103 into the filter tank 10, supplying the downstream machine tool. The cutting oil filtration device for deep hole drilling machines provided by this utility model also includes a mesh layer 30, which is also disposed inside the filter tank 10 and between the filter tank 10 and the precision filter bag 20. The mesh layer 30 is mainly used to support the precision filter bag 20 because the filtered impurities remain in the filter bag 20, which is prone to deformation and damage under the influence of impurities. Therefore, using the mesh layer 30 to support the filter bag 20 can prevent the filter bag 20 from being pulled and damaged. To ensure the supporting function of the mesh layer 30, the mesh layer 30 can usually be made of metal materials, such as stainless steel. Meanwhile, the cutting oil filtered by the filter bag 20 needs to be discharged from the outlet 103 of the lower oil pump. The filter bag 20 is located inside the mesh layer 30. Therefore, oil passage holes also need to be formed on the mesh layer 30 to ensure that the cutting oil flowing out of the filter bag 20 can continue to flow out from the oil passage holes of the mesh layer 30 after flowing into the mesh layer 30, until it flows out of the filter barrel 10 from the outlet 103 of the lower oil pump.

[0032] The deep hole drilling machine chip oil filtration device provided by this utility model also includes a sealing cover 40, which is disposed on the top of the filter barrel 10 and sealed to the filter barrel 10 to ensure that the chip oil filtration process takes place in a sealed environment. This can prevent impurities from entering during the filtration process and affecting the filtration, and can also reduce the risk of chip oil evaporation and safety hazards; at the same time, it can better control the pressure during the filtration process and improve the filtration efficiency and quality. In some embodiments, the deep hole drilling machine chip oil filtration device also includes a sealing ring 50, which can be an O-ring structure sealing ring. The sealing ring 50 is disposed between the sealing cover 40 and the filter barrel 10 to seal the sealing cover 40 and the filter barrel 10 and prevent oil leakage. Meanwhile, since the pressure inside the sealed filter barrel 10 may increase during the filtration process, potentially disrupting the original seal, the deep hole drilling machine chip oil filtration device also includes an annular snap-fit ​​screw 60. One end of the annular snap-fit ​​screw 60 is fixedly connected to the filter barrel 10, while the other end is tightly fastened to the top of the sealing cover 40 to press the sealing cover 40 and the filter barrel 10 together to achieve a seal. This ensures that the sealing cover 40 and the filter barrel 10 will not detach when the pressure inside the filter barrel 10 increases. The annular snap-fit ​​screw 60 effectively ensures the stability and reliability of the seal, is suitable for sealing requirements under various working conditions, and is easy to install and disassemble, significantly reducing sealing-related maintenance costs and improving the overall sealing performance of the equipment.

[0033] Please continue to refer to this. Figure 1The deep hole drilling machine chip oil filtration device also includes a bag pressure ring cover 70. The top of the bag pressure ring cover 70 is connected to the bottom of the sealing cover 40, and the bottom of the bag pressure ring cover 70 is sequentially connected to the top of the precision filter bag 20 and the filter barrel 10 to fix the precision filter bag 20 inside the filter barrel 10. For the precision filter bag 20 in this utility model, the bag pressure ring cover 70 first fixes the precision filter bag 20 inside the filter barrel 10 from above, and then the mesh layer 30 supports the precision filter bag 20 from below; ensuring that the precision filter bag will not be displaced or deformed under the influence of impurities, thus affecting the filtration effect. The deep hole drilling machine chip oil filtration device also includes a pressure gauge 80 and a pressure switch 90. Both the pressure gauge 80 and the pressure switch 90 are located on the top of the sealing cover 40. The pressure gauge 80 can display the pressure inside the sealed filter barrel 10, while the pressure switch can generate an alarm prompt based on the pressure inside the filter barrel 10. Specifically, when the precision filter bag 20 collects too much waste iron powder, causing blockage and preventing cutting oil from filtering out or causing slow filtering, the cutting oil accumulates inside the filter passage 10 and gradually fills the entire internal space of the filter barrel 10. The pressure gauge 80 continuously monitors and displays the pressure value inside the filter barrel 10, while the pressure switch 90 is set with a certain pressure threshold, such as 0.2 MPa. When the pressure value inside the filter barrel 10 reaches the threshold of 0.2 MPa, the pressure switch 90 sends an alarm signal to the machine tool system. Based on the received alarm signal, the machine tool system controls the upstream oil pump inlet 102 to stop oil supply and alarms the operator to clean the filter barrel or replace the precision filter bag. The deep hole drilling machine cutting oil filtration device provided by this utility model can realize intelligent alarm when there is excessive blockage by iron chips and waste, informing the machine tool user that cleaning work is required.

[0034] The deep hole drilling machine chip oil filtration device provided by this utility model also includes a drain valve 100, which is fixed on the outer wall of the filter barrel body 101 and communicates with the filter barrel 10. The drain valve is mainly used to discharge residual oil and washing wastewater when cleaning the filter barrel 10 after filtration is completed. Generally speaking, the distance between the drain valve 100 and the upper oil pump inlet 102 is greater than the distance between the upper oil pump inlet 102 and the lower oil pump outlet 103. That is, the drain valve 100 is the module closest to the bottom of the filter barrel 10, so as to ensure that all residual oil and wastewater during the cleaning process can be completely discharged from the filter barrel. The deep hole drilling machine chip oil filtration device also includes a cleaning device and a displacement rod, both of which are set inside the filter barrel 10. The displacement rod can be fixedly connected to the bottom of the sealing cover 40, and the cleaning device can be fixed on the displacement rod and move up and down along the extension direction of the displacement rod. This allows the cleaning device to move up and down to clean the inside of the filter barrel.

[0035] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0036] The above provides a detailed description of a deep hole drilling machine chip oil filtration device provided by the embodiments of this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the technical solution and core idea of ​​this utility model. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A chip oil filtration device for a deep hole drilling machine, characterized in that, include A filter barrel includes a filter barrel body, an upper oil pump inlet, and a lower oil pump outlet. The upper oil pump inlet and the lower oil pump outlet are both fixed on the outer side wall of the filter barrel body. The upper oil pump inlet is located at the upper part of the filter barrel body and communicates with the filter barrel. The lower oil pump outlet is located at the lower part of the filter barrel body and communicates with the filter barrel. A precision filter bag, which is fixed inside the filter barrel to finely filter the cutting oil; A mesh layer is disposed between the filter barrel and the precision filter bag. The mesh layer is used to support the precision filter bag. The bottom height of the mesh layer is less than the height of the lower-level oil pump outlet. The lower part of the mesh layer is connected to the lower-level oil pump outlet. A sealing cap is disposed on the top of the filter barrel and is sealed to the filter barrel.

2. The deep hole drilling machine chip oil filtration device according to claim 1, characterized in that, The deep hole drilling machine chip oil filtration device also includes a bag pressure ring cover. The top of the bag pressure ring cover is connected to the bottom of the sealing cover, and the bottom of the bag pressure ring cover is connected in sequence to the edge of the precision filter bag and the top of the filter barrel to fix the precision filter bag inside the filter barrel.

3. The deep hole drilling machine chip oil filtration device according to claim 1, characterized in that, The deep hole drilling machine chip oil filtration device also includes a sealing ring, which is disposed between the sealing cover and the filter barrel to seal the sealing cover and the filter barrel.

4. The deep hole drilling machine chip oil filtration device according to claim 1, characterized in that, The deep hole drilling machine chip oil filtration device also includes an annular snap-fit ​​screw, one end of which is fixedly connected to the filter barrel, and the other end of which is fastened to the top of the sealing cover to press the sealing cover and the filter barrel together.

5. The deep hole drilling machine chip oil filtration device according to claim 1, characterized in that, The deep hole drilling machine chip oil filtration device also includes a pressure gauge and a pressure switch, which are located on the top of the sealing cover. The pressure gauge can display the internal pressure of the filter barrel, and the pressure switch is used to generate an alarm prompt based on the internal pressure of the filter barrel.

6. The deep hole drilling machine chip oil filtration device according to claim 1, characterized in that, The deep hole drilling machine cutting oil filtration device also includes a drain valve, which is fixed on the outer wall of the filter barrel body and communicates with the filter barrel. The distance between the drain valve and the inlet of the upper-level oil pump is greater than the distance between the inlet of the upper-level oil pump and the outlet of the lower-level oil pump.

7. The deep hole drilling machine chip oil filtration device according to claim 1, characterized in that, The precision filter bag has a filtration accuracy of less than 20 micrometers.

8. The deep hole drilling machine chip oil filtration device according to claim 1, characterized in that, Oil-exposed pores are formed on the mesh layer.

9. The deep hole drilling machine chip oil filtration device according to claim 1, characterized in that, The mesh layer is made of a metallic material.

10. The deep hole drilling machine chip oil filtration device according to claim 1, characterized in that, The deep hole drilling machine chip oil filtration device also includes a cleaning device and a displacement rod. The cleaning device and the displacement rod are disposed inside the filter barrel. The displacement rod is fixedly connected to the bottom of the sealing cover. The cleaning device is fixed on the displacement rod and can move up and down along the displacement rod.

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