Cutting fluid supply structure for cutting machine tool
By using staggered upper and lower filter elements and a worm gear transmission system driven by a servo motor, the problem of machine tool downtime caused by filter plate clogging was solved, and continuous supply of cutting fluid and improved filtration effect were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONG QING YANG LIU JI XIE ZHI ZAO GU FEN YOU XIAN GONG SI
- Filing Date
- 2025-04-27
- Publication Date
- 2026-04-17
AI Technical Summary
The filter plates in the existing cutting fluid supply structure are prone to clogging, which leads to machine tool downtime for cleaning the filter plates and affects processing efficiency.
The upper and lower filter elements are arranged in an alternating manner. A servo motor drives a worm gear transmission system to achieve automatic switching and cleaning of the filter elements, avoid filter plate clogging, and ensure normal return supply of cutting fluid.
It enables the replacement and cleaning of filter components without affecting the machining process, maintains the normal supply of cutting fluid, and improves the machining efficiency and filtration effect of machine tools.
Smart Images

Figure CN224129283U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cutting machine tool technology, specifically to a cutting fluid supply structure for cutting machine tools. Background Technology
[0002] Cutting fluid is an industrial liquid used in metal cutting and grinding processes to cool and lubricate cutting tools and workpieces. It is made of a variety of high-performance additives through scientific compounding and has good cooling performance, lubrication performance, rust prevention performance, degreasing and cleaning function, anti-corrosion function, and easy dilution characteristics.
[0003] Existing machine tool cutting fluid supply structures, such as the cutting fluid supply device disclosed in patent publication number CN222308235U, relate to the field of machining technology. This device solves the problems of low cutting fluid lifespan and poor cutting effect in existing devices by employing the following solution: A return tank is mounted on the right side of the milling machine. This cutting fluid supply device, through the arrangement of a motor, rotating rod, stirring rod, and injection pipe, can continuously stir the cutting fluid, preventing sedimentation, deterioration, and foul odor caused by prolonged storage when the machine tool is stopped or idle for extended periods. This improves the cutting fluid's lifespan and effectiveness. Simultaneously, through the arrangement of the return tank, filter plate, water pump, and return pipe, the cutting fluid mixes with debris and flows into the return tank. Then, through the separation effect of the filter plate, the debris is adsorbed onto the filter plate, and the cutting fluid flows back into the cutting fluid tank through the water pump and return pipe for reuse, thus improving the cutting effect and ensuring the quality of the finished product.
[0004] During prolonged filtration operations, the filter plates in the return tank of this device are prone to clogging. This necessitates stopping the return supply of cutting fluid, which in turn requires halting machine tool operations to clean the filter plates. Only after cleaning the filter plates can machining operations resume, impacting the machining efficiency of the machine tool. To address this issue, we propose a cutting fluid supply structure for cutting machine tools. Utility Model Content
[0005] The purpose of this invention is to provide a cutting fluid supply structure for machine tools to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a cutting fluid supply structure for a cutting machine tool, comprising a return tank, a switching tank fixedly connected to one outer wall of the return tank, a servo motor fixedly mounted on the outer wall of the switching tank away from the return tank, the output shaft of the servo motor rotatably extending into the switching tank and the end of the output shaft fixedly connected to one end of a rotating shaft, the other end of the rotating shaft fixedly connected to one end of a worm gear, the other end of the worm gear rotatably connected to the return tank, the worm gear meshing with a worm wheel, the worm wheel fixedly sleeved on the middle of a transmission shaft, the two ends of the transmission shaft respectively rotatably connected to the inner walls of the two sides of the switching tank, gears fixedly sleeved on both sides of the transmission shaft, the two sides of the gears respectively meshing with an upper rack and a lower rack, the upper rack respectively fixedly connected to the bottom two ends of an upper filter element, the lower rack respectively fixedly connected to the top two ends of a lower filter element, the upper filter element and the lower filter element being alternately and movably disposed within the return tank and the switching tank.
[0007] Preferably, an inlet pipe is fixedly connected to the top of the reflux box, and a reflux pipe is fixedly connected to one side of the bottom of the reflux box.
[0008] Preferably, the top and bottom sides of the connection position between the return box and the switching box are respectively provided with connecting ports, and the two ends of the connecting ports are respectively provided with rack openings, and sealing strips are fixedly connected to the connecting ports and rack openings respectively.
[0009] Preferably, a guide groove is provided on one side of the communication port. The guide groove is recessed into the inner walls of the return box and the switching box. A slider is slidably engaged in the guide groove, and the slider is fixedly connected to one end of the upper filter and the lower filter respectively.
[0010] Preferably, the upper filter element includes an upper filter plate and an upper mounting frame, with upper racks fixedly connected to both ends of the bottom of the upper mounting frame, and the upper filter plate is disposed inside the upper mounting frame.
[0011] Preferably, the lower filter element includes a lower filter plate and a lower mounting frame. The lower mounting frame is fixedly connected to the top two ends of the lower mounting frame, and the lower filter plate is disposed inside the lower mounting frame.
[0012] Preferably, a sealed door is hinged to one end of the switching box, and a handle is fixedly installed on one side of the sealed door.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: By using the staggered upper and lower filter components, when one of the filter structures needs to be replaced, the servo motor is powered on and drives the rotating shaft to rotate. The rotating shaft, through the worm gear transmission, drives the transmission shaft to rotate. The transmission shaft drives the fixed gear to rotate, and the gear then drives the upper rack and lower rack to move respectively, so that the filter structure to be replaced enters the switching box. The filter structure in the switching box is cleaned or replaced, and the new filter structure is moved into the return box, thus not affecting the normal filtration function and allowing the cutting fluid to continue to flow back normally. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the internal structure of the reflux box and switching box of this utility model;
[0016] Figure 3 This is a cross-sectional structural diagram of the present invention.
[0017] In the diagram: 1. Reflux box, 101. Inlet pipe, 102. Reflux pipe, 103. Connecting port, 104. Rack port, 2. Switching box, 3. Servo motor, 4. Sealed box door, 41. Handle, 5. Upper filter element, 51. Upper filter plate, 52. Upper mounting frame, 6. Lower filter element, 61. Lower filter plate, 62. Lower mounting frame, 7. Upper rack, 8. Lower rack, 9. Gear, 10. Drive shaft, 11. Worm gear, 12. Worm, 13. Rotating shaft, 14. Guide groove. Detailed Implementation
[0018] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] Example 1
[0020] Reference Figure 1 , 2This is the first embodiment of the present invention, which provides a cutting fluid supply structure for a cutting machine tool, including a return box 1. A switching box 2 is fixedly connected to one side of the outer wall of the return box 1. A servo motor 3 is fixedly installed on the outer wall of the switching box 2 away from the return box 1. The output shaft of the servo motor 3 rotates and extends into the switching box 2, and the end of the output shaft is fixedly connected to one end of a rotating shaft 13. The other end of the rotating shaft 13 is fixedly connected to one end of a worm gear 12. The other end of the worm gear 12 is rotatably connected to the return box 1. The worm gear 12 meshes with a worm wheel 11. The worm wheel 11 is fixedly sleeved on the middle of a transmission shaft 10. The two ends of the transmission shaft 10 are respectively rotatably connected to the inner walls of the two sides of the switching box 2. Gears 9 are fixedly sleeved on both sides of the transmission shaft 10. The two sides of the gears 9 are respectively meshed with an upper rack 7 and a lower rack 8. The upper rack 7 is fixedly connected to the bottom two ends of an upper filter element 5, and the lower rack 8 is fixedly connected to the top two ends of a lower filter element 6. The upper filter element 5 and the lower filter element 6 are respectively movably arranged alternately in the return box 1 and the switching box 2.
[0021] When one of the filter structures needs to be replaced, the servo motor 3 is powered on, driving the rotating shaft 13 to rotate. The rotating shaft 13, through the worm gear 11 and worm 12, drives the transmission shaft 10 to rotate. The transmission shaft 10 drives the fixed gear 9 to rotate, and the gear 9 in turn drives the upper rack 7 and the lower rack 8 to move. The two move in staggered linear motion, so that the upper filter element 5 or the lower filter element 6 that needs to be replaced enters the switching box 2. That is, the upper filter element 5 moves into the switching box 2 and the lower filter element 6 moves into the return box 1, or the lower filter element 6 moves into the switching box 2 and the upper filter element 5 moves into the return box 1. The filter structure moved into the switching box 2 can be cleaned or replaced by opening the sealed box door 4. Since the filter structure still exists in the return box 1, the normal filtration function is not affected, and the cutting fluid can still be supplied normally.
[0022] Example 2
[0023] Reference Figure 1-3 This is the second embodiment of the present invention, which is based on the previous embodiment. Specifically, an inlet pipe 101 is fixedly connected to the top of the return tank 1, and a return pipe 102 is fixedly connected to one side of the bottom of the return tank 1. The inlet pipe 101 installed in the return tank 1 is connected to the machine tool cutting fluid recovery pipeline in conjunction with the pipeline. The cutting fluid enters the return tank 1 and is filtered by the upper filter element 5 or the lower filter element 6 to remove metal debris. After being filtered, the cutting fluid falls to the bottom of the return tank 1 after passing through the upper filter element 5 or the lower filter element 6. Finally, it is transported back to the machine tool cutting fluid supply tank through the return pipe 102 in conjunction with the pipeline to provide cutting fluid to the machine tool.
[0024] Specifically, a connecting port 103 is provided on both the top and bottom sides of the connection position between the return box 1 and the switching box 2. A rack port 104 is provided at both ends of the connecting port 103. A sealing strip is fixedly connected to the connecting port 103 and the rack port 104. The connecting port 103 provides movement space for the upper filter element 5 and the lower filter element 6, and the rack port 104 provides movement space for the upper rack 7 and the lower rack 8. The sealing strip improves the sealing performance of the connecting port 103 and the rack port 104, preventing the cutting fluid from flowing into the switching box 2.
[0025] Furthermore, a guide groove 14 is provided on one side of the connecting port 103. The guide groove 14 is recessed into the inner walls of the return box 1 and the switching box 2 on both sides. A slider is slidably engaged in the guide groove 14 and the slider is fixedly connected to one end of the upper filter element 5 and the lower filter element 6 respectively. The guide groove 14 provides sliding support for the movement of the upper filter element 5 and the lower filter element 6, ensuring the stability of the movement of the upper filter element 5 and the lower filter element 6.
[0026] Specifically, the upper filter element 5 includes an upper filter plate 51 and an upper mounting frame 52. The upper rack 7 is fixedly connected to both ends of the bottom of the upper mounting frame 52, and the upper filter plate 51 is provided inside the upper mounting frame 52.
[0027] Specifically, the lower filter element 6 includes a lower filter plate 61 and a lower mounting frame 62. The lower rack 8 is fixedly connected to both ends of the top of the lower mounting frame 62, and the lower filter plate 61 is provided inside the lower mounting frame 62.
[0028] When replacing the upper filter plate 51 or lower filter plate 61 in the upper filter element 5 or lower filter element 6, the upper mounting frame 52 or lower mounting frame 62 is moved into the switching box 2, and then the upper filter plate 51 or lower filter plate 61 is manually separated from the upper mounting frame 52 or lower mounting frame 62. That is, the upper mounting frame 52 or lower mounting frame 62 has a rectangular opening at one end facing the sealing box door 4, which facilitates the removal and replacement of the upper filter plate 51 or lower filter plate 61.
[0029] Specifically, a sealed door 4 is hinged to one end of the switching box 2, and a handle 41 is fixedly installed on one side of the sealed door 4.
[0030] When one of the filter structures needs to be replaced, the servo motor 3 is powered on, driving the rotating shaft 13 to rotate. The rotating shaft 13, through the worm gear 11 and worm 12, drives the transmission shaft 10 to rotate. The transmission shaft 10 drives the fixed gear 9 to rotate, and the gear 9 in turn drives the upper rack 7 and the lower rack 8 to move respectively. The two move in an alternating linear motion, so that the upper filter element 5 or the lower filter element 6 that needs to be replaced enters the switching box 2. That is, the upper filter element 5 moves into the switching box 2 and the lower filter element 6 moves into the return box 1, or the lower filter element 6 moves into the switching box 2 and the upper filter element 5 moves into the return box 1. The filter structure moved into the switching box 2 can be cleaned or replaced by opening the sealed box door 4.
[0031] Example 3
[0032] Reference Figure 1-3 This is the third embodiment of the present invention. Based on the previous two embodiments, in use, the inlet pipe 101 installed in the return tank 1 is connected to the machine tool cutting fluid recovery pipeline. The cutting fluid enters the return tank 1 and passes through the upper filter element 5 or the lower filter element 6 to filter out metal debris. The filtered cutting fluid passes through the upper filter element 5 or the lower filter element 6 and falls to the bottom of the return tank 1. Finally, it is transported back to the machine tool cutting fluid supply tank through the return pipe 102 and pipeline to supply cutting fluid to the machine tool. When it is necessary to replace one of the filter structures, the servo motor 3 is energized, driving the rotating shaft 13 to rotate. The rotating shaft 13 is connected to the worm gear 11 and worm 1... 2. The transmission mechanism drives the drive shaft 10 to rotate, which in turn drives the fixed gear 9 to rotate. The gear 9 then drives the upper rack 7 and the lower rack 8 to move. The alternating linear movement of the two drives the upper filter element 5 or the lower filter element 6 that needs to be replaced to enter the switching box 2. That is, the upper filter element 5 moves into the switching box 2 and the lower filter element 6 moves into the return box 1, or the lower filter element 6 moves into the switching box 2 and the upper filter element 5 moves into the return box 1. The filter structure moved into the switching box 2 can be cleaned or replaced by opening the sealed box door 4. Since the filter structure still exists in the return box 1, the normal filtration function is not affected, and the cutting fluid can still be supplied normally.
[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A cutting fluid supply structure for a cutting machine tool, comprising a return tank (1), one side outer wall of the return tank (1) is fixedly connected with a switching tank (2), characterized in that: A servo motor (3) is fixedly installed on the outer wall of the end of the switching box (2) away from the return box (1). The output shaft of the servo motor (3) rotates and extends into the switching box (2), and the end of the output shaft is fixedly connected to one end of a rotating shaft (13). The other end of the rotating shaft (13) is fixedly connected to one end of a worm gear (12). The other end of the worm gear (12) is rotatably connected to the return box (1). The worm gear (12) meshes with a worm wheel (11). The worm wheel (11) is fixedly sleeved on the middle part of the transmission shaft (10). The two ends of the shaft (10) are rotatably connected to the inner walls of the two sides of the switching box (2). The two sides of the transmission shaft (10) are fixedly sleeved with gears (9). The two sides of the gears (9) are meshed with the upper rack (7) and the lower rack (8). The upper rack (7) is fixedly connected to the bottom two ends of the upper filter element (5). The lower rack (8) is fixedly connected to the top two ends of the lower filter element (6). The upper filter element (5) and the lower filter element (6) are respectively staggered and movably arranged in the return box (1) and the switching box (2).
2. The cutting fluid supply structure for a cutting machine according to claim 1, characterized by: The top of the reflux box (1) is fixedly connected to an inlet pipe (101), and the bottom side of the reflux box (1) is fixedly connected to a reflux pipe (102).
3. The cutting fluid supply structure for a cutting machine according to claim 1, characterized in that: The top and bottom sides of the connection position between the return box (1) and the switching box (2) are respectively provided with a connecting port (103), and the two ends of the connecting port (103) are respectively provided with a rack opening (104). A sealing strip is fixedly connected inside the connecting port (103) and the rack opening (104).
4. The cutting fluid supply structure for a cutting machine according to claim 3, wherein: One side of the connecting port (103) is provided with a guide groove (14). The guide groove (14) is recessed into the inner walls of the return box (1) and the switching box (2). A slider is slidably engaged in the guide groove (14) and the slider is fixedly connected to one end of the upper filter element (5) and the lower filter element (6).
5. The cutting fluid supply structure for a cutting machine according to claim 1, characterized by: The upper filter element (5) includes an upper filter plate (51) and an upper mounting frame (52). The upper rack (7) is fixedly connected to both ends of the bottom of the upper mounting frame (52). The upper filter plate (51) is provided inside the upper mounting frame (52).
6. The cutting fluid supply structure for a cutting machine according to claim 1, characterized by: The lower filter element (6) includes a lower filter plate (61) and a lower mounting frame (62). The lower rack (8) is fixedly connected to both ends of the top of the lower mounting frame (62). The lower filter plate (61) is provided inside the lower mounting frame (62).
7. The cutting fluid supply structure for a cutting machine according to claim 1, wherein: A sealing door (4) is hinged to one end of the switching box (2), and a handle (41) is fixedly installed on one side of the sealing door (4).
Citation Information
Patent Citations
Cutting fluid supply device
CN222308235U