Cutting fluid pipe for numerically controlled lathe
By designing a filter housing and filter plate structure in the cutting fluid pipe of a CNC lathe, the problem of chips and impurities affecting the workpiece is solved, achieving pure flow of cutting fluid and improving workpiece machining quality and production efficiency.
Patent Information
- Application Number
- CN202520367737.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-03-04
AI Technical Summary
The existing cutting fluid hoses for CNC lathes lack a filtration structure when used in circulation, causing chips and impurities to be sprayed onto the workpiece, affecting the appearance of the workpiece and the quality of processing, and reducing production efficiency.
A filter housing is designed inside the cutting fluid line, with three layers of filter plates inside. The filter plates block chips and impurities, and are connected by sealing strips and fastening bolts to ensure the pure flow of cutting fluid and increase the sealing effect.
Ensure that the cutting fluid is free of chips and impurities when recycled, thereby improving the quality and appearance of the workpiece and increasing production efficiency.
Smart Images

Figure CN223788132U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of CNC lathe technology, specifically to a cutting fluid pipe for CNC lathes. Background Technology
[0002] A CNC lathe is an automated machining tool controlled by digital encoding, computational symbols, and program codes. Also known as a CNC lathe, it differs from a conventional lathe in that all machining operations, including machining parameters, tool movement direction, and the sequence and number of part movements, are automated through pre-set program codes. This type of lathe is primarily used for cutting internal and external cylindrical surfaces, internal and external conical surfaces with arbitrary cone angles, complex rotating internal and external curved surfaces, and cylindrical and conical threads on shaft or disc-shaped parts. It can also perform grooving, drilling, reaming, boring, and other machining operations. During CNC machining, cutting fluid is used for lubrication, cooling, cleaning, and rust prevention to remove chips and impurities generated during cutting and prevent tool wear.
[0003] However, existing CNC lathe cutting fluid hoses still have some problems in use:
[0004] When existing CNC lathes use circulating cutting fluid to cool, clean, and de-temperature the machining head, the cutting fluid carries chips and impurities generated during the cutting process. If there is no filtration structure, the chips and impurities will be sprayed onto the workpiece to be machined, which not only affects the appearance of the workpiece, but also easily leads to poor workpiece machining quality under the influence of chips and impurities, resulting in reduced machining efficiency.
[0005] Therefore, we propose a cutting fluid pipe for CNC lathes to solve the problems mentioned above. Utility Model Content
[0006] The purpose of this utility model is to provide a cutting fluid pipe for CNC lathes, in order to solve the problem mentioned in the background art that when CNC lathes use cutting fluid to cool, clean, and de-temperature the machining head, the cutting fluid carries chips and impurities generated during the cutting process. If there is no filtration structure, the chips and impurities will be sprayed onto the workpiece to be machined, which not only affects the appearance of the workpiece, but also easily leads to poor workpiece machining quality and reduced machining efficiency due to the influence of chips and impurities.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a cutting fluid pipe for CNC lathes, comprising a pipe body and a filter housing:
[0008] A filter housing is provided below the tube body. A U-shaped plate is fixed to the outer ring of the filter housing. A sealing strip is embedded in the outer surface of the U-shaped plate. A fixing plate is attached to one side of the U-shaped plate, and the sealing strip is embedded in the inner side of the fixing plate. Fastening bolts pass through the four corners of the fixing plate, and the fixing plate is fastened to the U-shaped plate through the fastening bolts. A filter plate is provided on the inner wall of the filter housing, and three layers of filter plates are staggered along the middle of the filter housing.
[0009] By adopting the above technical solution, a filter shell is added to the bottom of the pipe body. The filter shell is equipped with three filter plates. When the cutting fluid flows through the filter shell, the filter plates can block and isolate the chips and impurities carried in the cutting fluid. This ensures that the cutting fluid is free of chips or impurities when it is recycled, thereby improving the processing quality and ensuring the appearance of the workpiece.
[0010] Preferably, a pipe joint is welded to the top of the pipe body, the inner ring of the pipe joint is provided with a first internal thread coil, and the pipe body is composed of a stainless steel flexible tube.
[0011] By adopting the above technical solution, a pipe connector is designed at the top of the pipe body. The pipe connector has a first internal thread coil, which enables convenient connection between the pipe body and the cutting fluid storage tank, facilitating installation and improving operational convenience.
[0012] Preferably, a fixing member is fixed at the bottom end of the tube body, the inner ring of the fixing member is provided with a second internal thread coil, a limiting plate is integrally provided on the bottom end face of the fixing member, an embedding groove is provided between the limiting plate and the fixing member, and a positioning hole is provided on the outer surface of the limiting plate, and four sets of positioning holes are provided.
[0013] By adopting the above technical solution, a fixing component is designed at the bottom of the pipe body to connect the filter housing, so as to ensure structural stability and improve the delivery efficiency of the cutting fluid while ensuring normal flow of the cutting fluid.
[0014] Preferably, a connector is fixed on the top of the filter housing. The outer surface of the connector is provided with an external threaded coil. The connector is threadedly fastened to the fixing member through the second internal threaded coil and the external threaded coil. A positioning plate is fixed on the outside of the connector. The positioning plate corresponds to the positioning hole. The positioning plate and the fixing member form a locking structure through the embedded groove.
[0015] Using the above technical solution, a connector is fixed on the top of the filter housing. The connector is fixed in the middle of the fixing part by means of threaded connection between the external threaded coil and the second internal threaded coil. It is also connected to the embedded groove by the positioning plate, which increases the convenience of installation and can further increase the tightness of the connection and enhance the sealing effect.
[0016] Preferably, an external connecting pipe is fixed to the bottom of the filter housing, a groove is formed on the outer surface of the external connecting pipe, a telescopic rod is fixed to the inner wall of the groove, a spring is provided on the outer surface of the telescopic rod, a paddle is fixed to the top of the telescopic rod and the spring, an insert rod is fixed to one side of the paddle, and four sets of insert rods are evenly arranged along the outer surface of the external connecting pipe.
[0017] By adopting the above technical solution, an external connecting pipe is set at the bottom of the filter housing, and a spring-driven insertion rod is set on the outer surface of the external connecting pipe. The insertion rod enables quick assembly and disassembly, achieving flexible and stable connection and fixation functions.
[0018] Preferably, the outer connecting tube is nested with a sleeve, and the outer connecting tube is engaged with the sleeve via a plug rod. An O-ring is embedded at the bottom connection between the outer connecting tube and the sleeve, and a nozzle is fixed at the bottom of the sleeve.
[0019] By adopting the above technical solution, the sleeve is nested in the middle of the outer connecting pipe, the bottom of the sleeve and the bottom of the outer connecting pipe are interlocked, and the sleeve and the outer connecting pipe are fixed by the insertion rod, which can ensure the firmness of the connection between the two. An O-ring is added at the bottom connection between the outer connecting pipe and the sleeve, which can increase the sealing performance of the two and prevent the cutting fluid from leaking from the connection, thereby ensuring the sealing performance.
[0020] Compared with the prior art, the beneficial effects of this utility model are:
[0021] 1. A filter housing is designed and added at one end of the pipe. Three filter plates are installed alternately inside the filter housing. When the cutting fluid flows through the filter housing, the three filter plates inside the filter housing can block and isolate the chips and impurities carried in the cutting fluid. This ensures that the cutting fluid does not contain chips or impurities when it is circulated, and ensures the appearance of the workpiece and the quality of the machining during the cooling, rinsing and cleaning process of the cutting fluid.
[0022] 2. The fixing plate and the U-shaped plate are fastened together by bolts on both sides of the filter housing. A sealing strip is added between the fixing plate and the U-shaped plate to prevent leakage of cutting fluid during the flow of the cutting fluid. This increases the sealing effect of the filter housing, improves the filtration effect, ensures the processing quality, and improves the production efficiency of the workpiece. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the external structure of this utility model from the front view;
[0024] Figure 2 This is a schematic cross-sectional view of the main body of this utility model;
[0025] Figure 3This is a schematic diagram of the connection structure between the connector and the fastener of this utility model;
[0026] Figure 4 This utility model Figure 2 Enlarged structural diagram at point A in the middle;
[0027] Figure 5 This utility model Figure 2 Enlarged structural diagram at point B.
[0028] In the diagram: 1. Pipe body; 2. Pipe connector; 3. First internal threaded coil; 4. Fixing component; 5. Second internal threaded coil; 6. Limiting plate; 7. Embedded groove; 8. Positioning hole; 9. Filter housing; 10. Connecting component; 11. External threaded coil; 12. Positioning plate; 13. U-shaped plate; 14. Sealing strip; 15. Fixing plate; 16. Fastening bolt; 17. Filter plate; 18. External connecting pipe; 19. Slide groove; 20. Telescopic rod; 21. Spring; 22. Paddle; 23. Insert rod; 24. Sleeve; 25. O-ring; 26. Nozzle. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0030] To address the problem of existing technologies lacking a filtration structure, which causes chips and impurities to be sprayed onto the workpiece, the following solution is disclosed. Please refer to [link / reference]. Figures 1-5This utility model provides a technical solution: a cutting fluid pipe for CNC lathes, including a pipe body 1 and a filter housing 9. The filter housing 9 is provided below the pipe body 1. A U-shaped plate 13 is fixed to the outer ring of the filter housing 9. A sealing strip 14 is embedded in the outer surface of the U-shaped plate 13. A fixing plate 15 is attached to one side of the U-shaped plate 13, and the sealing strip 14 is embedded in the inner side of the fixing plate 15. Fastening bolts 16 pass through the four corners of the fixing plate 15, and the fixing plate 15 is fastened to the U-shaped plate 13 by the fastening bolts 16. A filter plate 17 is provided on the inner wall of the filter housing 9, and three layers of filter plates 17 are staggered along the middle of the filter housing 9. A filter housing 9 is added to one end of the pipe body 1. Three layers of filter plates 17 are installed alternately inside the filter housing 9. When the cutting fluid flows through the filter housing 9, the three layers of filter plates 17 inside the filter housing 9 can block and isolate the chips and impurities carried in the middle of the cutting fluid, so as to ensure that the cutting fluid does not contain chips or impurities when it is circulated. This ensures the appearance of the workpiece during the cooling, rinsing and cleaning process of the cutting fluid and guarantees the processing quality. The fixing plate 15 and the U-shaped plate 13 are fastened to both sides of the filter housing 9 by fastening bolts 16. A sealing strip 14 is added between the fixing plate 15 and the U-shaped plate 13. The sealing strip 14 can prevent leakage during the flow of cutting fluid, increase the sealing effect of the filter housing 9, improve the filtration effect, ensure the processing quality, and improve the workpiece processing production efficiency.
[0031] A pipe connector 2 is welded to the top of the pipe body 1. The inner ring of the pipe connector 2 has a first internal thread coil 3, and the pipe body 1 is composed of a stainless steel flexible hose. By installing the pipe connector 2 on the top of the pipe body 1, the pipe connector 2 can be securely connected to the threaded connector reserved in the cutting fluid storage tank through the first internal thread coil 3, which facilitates installation and disassembly, increasing convenience. The design of the pipe body 1 as a stainless steel flexible hose allows for easy adjustment of the curvature of the pipe body 1 according to processing requirements, so that the cutting fluid can be accurately sprayed onto the workpiece, further providing a cooling effect and enhancing the processing effect.
[0032] A fixing member 4 is fixed at the bottom end of the tube body 1. A second internal threaded coil 5 is provided on the inner ring of the fixing member 4. A limiting plate 6 is integrally provided on the bottom end face of the fixing member 4. An embedding groove 7 is provided between the limiting plate 6 and the fixing member 4. A positioning hole 8 is provided on the outer surface of the limiting plate 6, and four sets of positioning holes 8 are provided. A connecting member 10 is fixed on the top of the filter shell 9. An external threaded coil 11 is provided on the outer surface of the connecting member 10. The connecting member 10 is threadedly fastened to the fixing member 4 through the second internal threaded coil 5 and the external threaded coil 11. A positioning plate 12 is fixed on the outer side of the connecting member 10. The positioning plate 12 corresponds to the positioning hole 8. The positioning plate 12 forms a locking structure with the fixing member 4 through the embedding groove 7. The positioning plate 12 on the outer surface of the connector 10 corresponds to the positioning hole 8 at the bottom of the fixing part 4, and the positioning plate 12 is embedded in the middle of the embedding groove 7. The outer surface of the connector 10 is provided with an external thread coil 11 corresponding to the second internal thread coil 5 opened in the middle of the fixing part 4. The connector 10 and the fixing part 4 can be fixed by rotation. The positioning plate 12 can further increase the limiting effect and ensure the stability of the connection. It can provide a stable connection method and facilitate disassembly, maintenance and replacement, and ensure the smooth flow of cutting fluid.
[0033] An external connecting pipe 18 is fixed to the bottom of the filter housing 9. A groove 19 is provided on the outer surface of the external connecting pipe 18. A telescopic rod 20 is fixed to the inner wall of the groove 19. A spring 21 is provided on the outer surface of the telescopic rod 20. A lever 22 is fixed to the top of the telescopic rod 20 and the spring 21. An insert rod 23 is fixed to one side of the lever 22. Four sets of insert rods 23 are evenly arranged along the outer surface of the external connecting pipe 18. A sleeve 24 is nested inside the external connecting pipe 18. The external connecting pipe 18 is connected to the sleeve 24 by the insert rod 23. An O-ring 25 is embedded at the bottom connection of the external connecting pipe 18 and the sleeve 24. A nozzle 26 is fixed to the bottom of the sleeve 24. Manually move the lever 22, which moves the insert rod 23 to insert the sleeve 24 carrying the nozzle 26 into the middle of the outer connecting pipe 18 at the bottom of the filter housing 9. After the sleeve 24 and the bottom of the outer connecting pipe 18 are connected, release the lever 22. Under the elastic action of the spring 21, the lever 22 moves the insert rod 23 back to its original position, allowing the insert rod 23 to form a locking connection with the sleeve 24. This fixes the sleeve 24 to the bottom of the outer connecting pipe 18, thus securing the nozzle 26. An O-ring 25 is added at the connection between the sleeve 24 and the bottom of the outer connecting pipe 18 to enhance the sealing effect, further preventing cutting fluid leakage and ensuring normal flow of cutting fluid. The simple locking connection allows for easy disassembly and replacement of the nozzle 26 as needed, adapting to the processing requirements of different workpieces, enhancing applicability, and improving efficiency.
[0034] Working Principle: For this type of CNC lathe cutting fluid pipe, firstly, the pipe body 1 is fastened to the threaded joint of the cutting fluid storage tank through the pipe connector 2 installed on the top of the pipe body 1, realizing the initial flow of cutting fluid. Then, the connector 10 and the fixing part 4 are fixed by rotating and fastening the connection. The positioning plate 12 can further increase the limiting effect and ensure the stability of the connection. It can provide a stable connection method and facilitate disassembly, maintenance and replacement. Finally, the sleeve 24 is fixed to the bottom of the outer connecting pipe 18 by snap-fit connection to realize the nozzle 26. An O-ring 25 is added at the bottom connection of the sleeve 24 and the outer connecting pipe 18 to increase the sealing effect of the connection between the sleeve 24 and the outer connecting pipe 18, further preventing cutting fluid leakage and ensuring the normal flow of cutting fluid. Through simple snap-fit connection, the nozzle 26 can be easily disassembled and replaced as needed to adapt to the processing needs of different workpieces, enhance applicability and improve efficiency.
[0035] This completes a series of tasks. The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0036] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A cutting fluid pipe for a CNC lathe, comprising a pipe body (1) and a filter housing (9), characterized in that: A filter housing (9) is provided below the tube body (1). A U-shaped plate (13) is fixed to the outer ring of the filter housing (9). A sealing strip (14) is embedded in the outer surface of the U-shaped plate (13). A fixing plate (15) is attached to one side of the U-shaped plate (13), and the sealing strip (14) is embedded in the inner side of the fixing plate (15). Fastening bolts (16) pass through the four corners of the fixing plate (15), and the fixing plate (15) is fastened to the U-shaped plate (13) by the fastening bolts (16). A filter plate (17) is provided on the inner wall of the filter housing (9), and three layers of filter plates (17) are staggered along the middle of the filter housing (9).
2. The cutting fluid pipe for a CNC lathe according to claim 1, characterized in that: The top end of the tube body (1) is welded with a pipe joint (2), the inner ring of the pipe joint (2) is provided with a first internal thread coil (3), and the tube body (1) is made of stainless steel flexible tubing.
3. A cutting fluid pipe for a CNC lathe according to claim 2, characterized in that: The bottom end of the tube (1) is fixed with a fastener (4), the inner ring of the fastener (4) is provided with a second internal thread coil (5), the bottom end face of the fastener (4) is integrally provided with a limiting plate (6), an embedding groove (7) is provided between the limiting plate (6) and the fastener (4), and the outer surface of the limiting plate (6) is provided with a positioning hole (8), and four sets of positioning holes (8) are provided.
4. A cutting fluid pipe for a CNC lathe according to claim 3, characterized in that: A connector (10) is fixed on the top of the filter housing (9). An external threaded coil (11) is provided on the outer surface of the connector (10). The connector (10) is threadedly fastened to the fixing member (4) through the second internal threaded coil (5) and the external threaded coil (11). A positioning plate (12) is fixed on the outside of the connector (10). The positioning plate (12) corresponds to the positioning hole (8). The positioning plate (12) forms a locking structure with the fixing member (4) through the embedding groove (7).
5. A cutting fluid pipe for a CNC lathe according to claim 1, characterized in that: The bottom of the filter housing (9) is fixed with an external connecting pipe (18). The outer surface of the external connecting pipe (18) is provided with a groove (19). The inner wall of the groove (19) is fixed with a telescopic rod (20). The outer surface of the telescopic rod (20) is provided with a spring (21). The top of the telescopic rod (20) and the spring (21) is fixed with a paddle (22). One side of the paddle (22) is fixed with a plug (23), and four sets of plugs (23) are evenly arranged along the outer surface of the external connecting pipe (18).
6. A cutting fluid pipe for a CNC lathe according to claim 5, characterized in that: The outer connecting tube (18) is nested with a sleeve (24), and the outer connecting tube (18) is connected to the sleeve (24) by a plug rod (23). An O-ring (25) is embedded at the bottom connection of the outer connecting tube (18) and the sleeve (24), and a nozzle (26) is fixed at the bottom of the sleeve (24).