High-precision intelligent cutting fluid supply system

Abstract

The utility model relates to the technical field of cutting fluid supply systems, in particular to a high-precision intelligent cutting fluid supply system which comprises a fluid supply system and a control system, the fluid supply system comprises a main water tank and a proportioning tank, the proportioning tank is connected with the main water tank through a pipeline, and an automatic ball valve is further arranged on the pipeline between the proportioning tank and the main water tank. The proportioning box is arranged in the main water tank, the proportioning box and the main water tank are further connected with liquid discharge pipes used for liquid preparation and sampling, a second throw-in type liquid level sensor is arranged in the proportioning box, a stirrer used for mixing cutting fluid stock solution and tap water is arranged in the proportioning box, and a second high-low liquid level safety switch is further arranged in the proportioning box. The proportioning box is provided with the stirrer so as to ensure that the direct water and the cutting fluid stock solution can be fully mixed. The mixed solution is then introduced into the main water tank. In this way, pre-proportioning of the cutting fluid is achieved, so that the proportioning process of the cutting fluid can be accurately controlled, and the precision and reliability of the system are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of cutting fluid supply systems, specifically a high-precision intelligent cutting fluid supply system. Background Technology

[0002] In the field of machining, the cutting fluid control system plays a crucial role in managing and controlling key parameters such as cutting fluid supply, circulation concentration, and temperature. This system can monitor the status parameters of the cutting fluid in real time, including but not limited to flow rate, pressure, and temperature, and automatically adjust them according to actual machining needs to ensure a stable supply and efficient utilization of the cutting fluid.

[0003] Chinese patent CN219725501U discloses an intelligent cutting fluid supply system, whose structure mainly includes a frame, a housing mounted on the frame, a fluid supply system, and a control system. The fluid supply system is further subdivided into a pneumatic system, a raw fluid supply system, and a cutting fluid supply system. The raw fluid supply system specifically consists of a water inlet pipe, a raw fluid pipe, a proportioning pump, and a mixed fluid inlet pipe. In this patent, the proportioning pump extracts water and raw cutting fluid in a preset ratio through the water inlet pipe and the raw fluid pipe, respectively, and introduces them into the housing through the mixed fluid inlet pipe. By integrating the pneumatic system, the raw fluid supply system, the cutting fluid supply system, and the extended fluid supply system, this system achieves intelligent configuration of cutting fluid supply, thereby meeting the fluid supply needs of different equipment.

[0004] In this existing technology, the cutting fluid concentrate and tap water are directly pumped into the main water tank. However, this method makes it difficult to precisely control the concentration of the cutting fluid, easily leading to uneven distribution of the cutting fluid concentration in the main water tank. Utility Model Content

[0005] I. Technical problems to be solved

[0006] This invention addresses the aforementioned deficiencies in existing technologies by proposing a high-precision intelligent cutting fluid supply system. It incorporates a mixing tank equipped with a second level sensor for real-time monitoring of the cutting fluid volume. Furthermore, the mixing tank is fitted with a stirrer to ensure thorough mixing of the tap water and the original cutting fluid. The mixed solution is then transferred to the main water tank. This method enables pre-mixing of the cutting fluid, allowing for precise control of the mixing process and improving the system's accuracy and reliability.

[0007] II. Technical Solution

[0008] To solve the above-mentioned technical problems, this utility model provides a high-precision intelligent cutting fluid supply system, including a supply system and a control system. The supply system includes a main water tank for storing cutting fluid and a mixing tank for pre-mixing water and cutting fluid.

[0009] The system includes a filtrate supply system for transporting the filtered cutting fluid to the main water tank, a tap water supply system for pumping tap water into both the main water tank and the mixing tank, a stock solution supply system for pumping the stock cutting fluid into both the main water tank and the mixing tank, and an extended supply system as a backup supply system. The mixing tank and the main water tank are connected by a pipeline, which is equipped with an automatic ball valve. Both the mixing tank and the main water tank are connected to a drain pipe for sampling the solution. The mixing tank is equipped with a second immersion-type liquid level sensor, a stirrer for mixing the stock cutting fluid and tap water, and a second high / low level safety switch.

[0010] Preferably, the main water tank is equipped with a pH and temperature sensor for detecting the pH value and temperature of the cutting fluid inside, a first immersion-type liquid level sensor, a first high and low liquid level safety switch, and an aerator.

[0011] Preferably, the main water tank is connected to a peristaltic pump and a concentration sensor via a pipe. The peristaltic pump extracts the cutting fluid from the main water tank and returns it to the main water tank. The concentration of the cutting fluid is detected by the concentration sensor.

[0012] Preferably, the tap water supply system includes a pre-filter and a second flow sensor, which are connected by a pipe. The tap water supply system also includes a three-way pipe connecting the main water tank and the mixing tank. The three-way pipe is also equipped with two automatic ball valves that control the flow of tap water into the main water tank and the mixing tank. The three-way pipe is connected to the second flow sensor. The pre-filter is connected to a control valve via a pipe.

[0013] Preferably, the raw fluid supply system includes a raw fluid tank and a second diaphragm pump. The raw fluid tank and the second diaphragm pump are connected by a pipeline, and control valves are also connected to the pipelines of the raw fluid tank and the second diaphragm pump. A third flow sensor is connected to the second diaphragm pump by a pipeline. The third flow sensor is connected to the main water tank and the mixing tank by a T-junction. The T-junction of the third flow sensor is also equipped with two automatic ball valves that control the flow of cutting fluid raw fluid into the main water tank and the mixing tank.

[0014] Preferably, the filtrate supply system includes a first diaphragm pump, a first flow sensor, and a filtrate tank. The first flow sensor and the filtrate tank are connected by a pipeline, and a control valve is connected to the pipeline between the first flow sensor and the filtrate tank. The first flow sensor is connected to a first diaphragm pump for pumping the filtrate in the filtrate tank into the main water tank.

[0015] Preferably, the extended liquid supply system includes an extended water tank, to which a standby liquid supply pump and a liquid supply pump are connected via pipes. The standby liquid supply pump and the liquid supply pump are connected in parallel. An infrared liquid level sensor and a liquid filling gun are also connected to the pipes between the extended water tank and the standby liquid supply pump and the liquid supply pump. The inlet ends of the standby liquid supply pump and the liquid supply pump are connected to the main water tank via pipes. The pipes connecting the standby liquid supply pump and the liquid supply pump to the main water tank are also equipped with control valves for switching the operation of the standby liquid supply pump and the liquid supply pump. A drain pipe with a control valve is also connected to the pipes connecting the standby liquid supply pump and the liquid supply pump to the main water tank.

[0016] Preferably, the control system includes a pneumatic system, which drives the operation of the first diaphragm pump in the filtrate supply system, the second diaphragm pump in the raw liquid supply system, and the standby pump and the supply pump in the extended liquid supply system. The pneumatic system is also used to control the on / off state of the automatic ball valve.

[0017] III. Beneficial Effects

[0018] Compared to existing technologies, this invention features a mixing tank. Inside the mixing tank, a second immersion-type liquid level sensor is installed, which can accurately detect the volume of cutting fluid in the tank in real time. Simultaneously, the mixing tank is equipped with a stirrer to ensure thorough mixing of tap water and the original cutting fluid. The mixed cutting fluid is then introduced into the main water tank. Compared to the traditional method of directly introducing tap water and the original cutting fluid into the main water tank, the pre-mixing method employed in this invention significantly improves the accuracy of cutting fluid preparation.

[0019] Meanwhile, to further improve the detection accuracy and uniformity of cutting fluid concentration, this invention adds a peristaltic pump and a concentration sensor to the outside of the main water tank. The peristaltic pump draws cutting fluid from the main water tank, passes it through the concentration sensor, and then flows it back into the main water tank. The concentration sensor can detect the cutting fluid concentration in real time and accurately. This cyclic detection method not only improves detection accuracy but also promotes a more uniform concentration distribution of the cutting fluid in the main water tank. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the principle structure of a high-precision intelligent cutting fluid supply system according to this utility model.

[0021] Figure 2 This is a schematic diagram of the mixing principle structure of a high-precision intelligent cutting fluid supply system according to this utility model.

[0022] Figure 3 This is a schematic diagram of the supply principle structure of a high-precision intelligent cutting fluid supply system according to this utility model.

[0023] In the picture:

[0024] 1. Main water tank; 11. Peristaltic pump; 12. Concentration sensor; 13. pH and temperature sensors; 14. First submersible level sensor; 15. First high / low level safety switch; 16. Aerator; 17. Automatic ball valve; 2. Proportioning tank; 21. Second submersible level sensor; 22. Stirrer; 23. Second high / low level safety switch; 3. Filtrate supply system; 31. First diaphragm pump; 32. First flow sensor; 33. Filtrate tank; 4. Tap water supply system; 41. Pre-filter; 42. Second flow sensor; 5. Raw material supply system; 51. Raw material tank; 52. Second diaphragm pump; 53. Third flow sensor; 6. Pneumatic system; 8. Extended supply system; 81. Extended water tank; 82. Backup supply pump; 83. Supply pump; 84. Infrared level sensor; 85. Dosing gun. Detailed Implementation

[0025] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0026] Reference Figures 1-3 As shown, this utility model provides a high-precision intelligent cutting fluid supply system, including a supply system and a control system. The supply system includes a main water tank 1 for storing cutting fluid; a mixing tank 2 for pre-mixing water and cutting fluid; a filtrate supply system 3 for transporting the filtered cutting fluid to the main water tank 1; a tap water supply system 4 for pumping tap water into both the main water tank 1 and the mixing tank 2; and a stock solution supply system 5 for pumping the stock cutting fluid into both the main water tank 1 and the mixing tank 2. The liquid supply system 8 is used as a backup liquid supply system; the mixing tank 2 and the main water tank 1 are connected by a pipeline, and the pipeline between the mixing tank 2 and the main water tank 1 is also equipped with an automatic ball valve 17. The mixing tank 2 and the main water tank 1 are also connected to a drain pipe for liquid mixing and sampling. The mixing tank 2 is equipped with a second immersion liquid level sensor 21. The mixing tank 2 is equipped with a stirrer 22 for mixing the cutting fluid stock solution and tap water. The mixing tank 2 is also equipped with a second high and low liquid level safety switch 23.

[0027] Inside the mixing tank 2, a second immersion-type liquid level sensor 21 is installed, which can accurately detect the volume of cutting fluid in the mixing tank 2 in real time. Simultaneously, the mixing tank 2 is also equipped with a stirrer 22, which ensures that tap water and the raw cutting fluid are thoroughly mixed. The mixed cutting fluid is then introduced into the main water tank 1. Compared with the traditional method of directly introducing tap water and raw cutting fluid into the main water tank 1, the pre-mixing method adopted in this invention significantly improves the accuracy of cutting fluid preparation.

[0028] The main water tank 1 is equipped with pH and temperature sensors 13 for detecting the pH value and temperature of the cutting fluid inside. It also contains a first submersible level sensor 14 for real-time monitoring of the cutting fluid level. Accurate measurement of the cutting fluid level ensures a sufficient supply and prevents insufficient supply due to low levels. The main water tank 1 also includes a first high / low level safety switch 15 to prevent the cutting fluid level from becoming too high or too low. When the level reaches a preset high or low threshold, the safety switch automatically triggers, cutting off the power to the relevant system or issuing an alarm. The main water tank 1 also contains an aerator 16. During use, the cutting fluid is prone to bacterial and microbial growth due to contact with metal shavings, oil, and other impurities, leading to deterioration and foul odor. Injecting air into the cutting fluid through the aerator 16 effectively inhibits bacterial growth and extends the service life of the cutting fluid.

[0029] The main water tank 1 is connected to a peristaltic pump 11 and a concentration sensor 12 via a pipe. The peristaltic pump 11 extracts the cutting fluid from the main water tank 1 and returns it to the main water tank 1. The concentration of the cutting fluid is detected by the concentration sensor 12.

[0030] A peristaltic pump 11 and a concentration sensor 12 are added to the outside of the main water tank 1. The peristaltic pump 11 draws the cutting fluid out of the main water tank 1, passes it through the concentration sensor 12, and then flows it back into the main water tank 1. The concentration sensor 12 can detect the concentration of the cutting fluid in real time and accurately. This cyclic detection method not only improves the detection accuracy but also promotes a more uniform concentration distribution of the cutting fluid in the main water tank 1.

[0031] The tap water supply system 4 includes a pre-filter 41 and a second flow sensor 42, which are connected by a pipe. The tap water supply system 4 also includes a three-way pipe connecting the main water tank 1 and the mixing tank 2. The three-way pipe is also equipped with two automatic ball valves 17 that control the flow of tap water into the main water tank 1 and the mixing tank 2. The three-way pipe is connected to the second flow sensor 42. The pre-filter 41 is connected to a control valve via a pipe.

[0032] The raw fluid supply system 5 includes a raw fluid tank 51 and a second diaphragm pump 52. The raw fluid tank 51 and the second diaphragm pump 52 are connected by a pipeline, and control valves are also connected to the pipelines of the raw fluid tank 51 and the second diaphragm pump 52. A third flow sensor 53 is connected to the second diaphragm pump 52 by a pipeline. The third flow sensor 53 is connected to the main water tank 1 and the mixing tank 2 by a three-way pipe. Two automatic ball valves 17 are also installed on the three-way pipe of the third flow sensor 53 to control the flow of cutting fluid raw fluid into the main water tank 1 and the mixing tank 2.

[0033] The filtrate supply system 3 includes a first diaphragm pump 31, a first flow sensor 32, and a filtrate tank 33. The first flow sensor 32 and the filtrate tank 33 are connected by a pipe, and a control valve is connected to the pipe between the first flow sensor 32 and the filtrate tank 33. The first flow sensor 32 is connected to the first diaphragm pump 31 for pumping the filtrate in the filtrate tank 33 into the main water tank 1.

[0034] When calculating the cutting fluid concentration, case one:

[0035] The current volume of liquid in the water tank is Vm

[0036]

[0037] Formula meaning: Calculate the current liquid volume based on the current tank height and the maximum height.

[0038] Example calculation:

[0039]

[0040] (Assume the current height of the water tank is 0.75 meters, and the maximum height is 1 meter).

[0041] • Ct: Target concentration, which is the concentration of the cutting fluid you want to achieve (a value that can be set).

[0042] •Cm: Current concentration, i.e., the cutting fluid concentration measured by the sensor in real time.

[0043] •Cs: The concentration of the original solution. It is an assumed value initially, but it will be gradually corrected during the adjustment process.

[0044] •V: Water tank capacity, maximum 512 liters.

[0045] Hm: Current water tank height, indicating the current liquid level in the water tank.

[0046] • Hmax: Maximum height of the water tank, corresponding to a maximum volume of 512 liters.

[0047] •Vm: The current volume of liquid in the water tank, calculated from the current height of the water tank.

[0048] The required volume V of the original solution to be added (when the current concentration is lower than the target concentration).

[0049] formula:

[0050]

[0051] • Ct: Target concentration (%)

[0052] • Cm: Current concentration (%)

[0053] • C: Concentration of original solution (%)

[0054] • Vm: Current volume of liquid in the water tank (L)

[0055] •V: Volume of stock solution to be added (L).

[0056] Formula meaning: In order to increase the concentration of the current liquid from Cm to Ct, the volume of the original liquid V that needs to be added is calculated by multiplying the concentration difference by the current liquid volume and then dividing by the concentration of the original liquid.

[0057] Example calculation

[0058] Assumption:

[0059] Target concentration Ct = 7.5%

[0060] • Current concentration Cm = 6.0%

[0061] • Stock solution concentration C = 100%

[0062] The current volume of liquid in the water tank is Vm = 384L.

[0063] Substitute into the formula:

[0064]

[0065] Calculation steps:

[0066] 1. Calculate the concentration difference:

[0067] 7.5% - 6.0% = 1.5%

[0068] 2. Calculate the product of the concentration difference and the current liquid volume:

[0069] 1.5%×384L=0.015×384L=5.76L

[0070] 3. Divide by the original solution concentration:

[0071]

[0072] Scenario 2: When the current concentration is higher than the target concentration and water needs to be added: Formula

[0073]

[0074] Example calculation

[0075] Assumption

[0076] • Target concentration Ct = 6.0%,

[0077] • Current concentration Cm = 7.5%,

[0078] The current volume of liquid in the water tank is Vm = 384L.

[0079] Substitute into the formula

[0080]

[0081] Calculation steps:

[0082] 1. Calculate the concentration difference: 7.5% - 6.0% = 1.5%.

[0083] 2. Convert percentages to decimals: 1.5% = 0.015

[0084] 7.5% = 0.075

[0085] 3. Calculate the product of the concentration difference and the current liquid volume:

[0086] 0.015·384L=5.76L,

[0087] 4. Divide by the current concentration:

[0088]

[0089] The extended liquid supply system 8 includes an extended water tank 81. A standby liquid supply pump 82 and a liquid supply pump 83 are connected to the extended water tank 81 via pipes. The standby liquid supply pump 82 and the liquid supply pump 83 are connected in parallel. An infrared liquid level sensor 84 and a liquid filling gun 85 are also connected to the pipes between the extended water tank 81 and the standby liquid supply pumps 82 and 83. The inlet ends of the standby liquid supply pumps 82 and 83 are connected to the main water tank 1 via pipes. A control valve for switching the operation of the standby liquid supply pumps 82 and 83 is also installed on the pipes connecting the standby liquid supply pumps 82 and 83 to the main water tank 1. A drain pipe with a control valve is also connected to the pipes connecting the standby liquid supply pumps 82 and 83 to the main water tank 1.

[0090] The control system includes a pneumatic system 6, which drives the first diaphragm pump 31 in the filtrate supply system 3, the second diaphragm pump 52 in the raw liquid supply system 5, and the standby pump 82 and the supply pump 83 in the extended liquid supply system 8. The pneumatic system 6 is also used to control the on / off state of the automatic ball valve 17.

[0091] Working Principle: When using this system, firstly, the inlet pipe of the tap water supply system 4 is connected to the tap water source. The tap water passes through the pre-filter 41 to remove impurities, and then the flow rate is detected and recorded by the second flow sensor 42. The treated tap water enters the mixing tank 2. Simultaneously, the cutting fluid concentrate from the stock solution supply system 5 also enters the mixing tank 2, where the third flow sensor 53 is used to precisely control and detect the flow rate of the cutting fluid concentrate. Inside the mixing tank 2, the tap water and cutting fluid concentrate are thoroughly mixed by the action of the stirrer 22. The second immersion level sensor 21 monitors the volume of cutting fluid in the mixing tank 2 in real time. The mixed cutting fluid is then transported to the main water tank 1. Inside the main water tank 1, the pH and temperature sensors 13 detect the pH value and temperature of the cutting fluid, while the first immersion level sensor 14 detects the volume of cutting fluid in the main water tank 1. To ensure the cutting fluid concentration is uniform and meets machining requirements, a peristaltic pump 11 draws cutting fluid from the main water tank 1 and passes it through a concentration sensor 12 for real-time monitoring. The concentration sensor 12 provides high-precision concentration detection, and the circulation of the cutting fluid further ensures a more uniform concentration distribution within the main water tank 1. Finally, after the cutting fluid is sprayed out by the machine tool, it passes through a filter into a filtrate tank 33 for filtration and recycling, thus achieving efficient utilization and environmentally friendly treatment of the cutting fluid.

[0092] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A high-precision intelligent cutting fluid supply system, characterized in that: Including the liquid supply system and the control system, The liquid supply system includes Main water tank (1), used to store cutting fluid; Mixing tank (2) is used to pre-mix water and cutting fluid; The filtrate supply system (3) is used to transport the filtered cutting fluid to the main water tank (1); The tap water supply system (4) is used to pump tap water into the main water tank (1) and the mixing tank (2) respectively; The raw fluid supply system (5) is used to pump the raw cutting fluid into the main water tank (1) and the mixing tank (2) respectively; An extended liquid supply system (8) is provided as a backup liquid supply system. The mixing tank (2) and the main water tank (1) are connected by a pipe, and the pipe between the mixing tank (2) and the main water tank (1) is also equipped with an automatic ball valve (17). The mixing tank (2) and the main water tank (1) are also connected to a drain pipe for liquid sampling. The mixing tank (2) is equipped with a second immersion liquid level sensor (21). The mixing tank (2) is equipped with a stirrer (22) for mixing the cutting fluid stock solution and tap water. The mixing tank (2) is also equipped with a second high and low liquid level safety switch (23).

2. The high-precision intelligent cutting fluid supply system according to claim 1, characterized in that: The main water tank (1) is equipped with a pH and temperature sensor (13) for detecting the pH value and temperature of the cutting fluid inside. The main water tank (1) is also equipped with a first immersion liquid level sensor (14), a first high and low liquid level safety switch (15), and an aerator (16).

3. The high-precision intelligent cutting fluid supply system according to claim 2, characterized in that: The main water tank (1) is connected to a peristaltic pump (11) and a concentration sensor (12) via a pipe. The peristaltic pump (11) extracts the cutting fluid from the main water tank (1) and returns it to the main water tank (1). The concentration of the cutting fluid is detected by the concentration sensor (12).

4. The high-precision intelligent cutting fluid supply system according to claim 1, characterized in that: The tap water supply system (4) includes a pre-filter (41) and a second flow sensor (42), which are connected by a pipe. The tap water supply system (4) includes a three-way pipe connecting the main water tank (1) and the mixing tank (2). The three-way pipe is also equipped with two automatic ball valves (17) that control the flow of tap water into the main water tank (1) and the mixing tank (2). The three-way pipe is connected to the second flow sensor (42), and the pre-filter (41) is connected to a control valve by a pipe.

5. The high-precision intelligent cutting fluid supply system according to claim 1, characterized in that: The raw fluid supply system (5) includes a raw fluid tank (51) and a second diaphragm pump (52). The raw fluid tank (51) and the second diaphragm pump (52) are connected by a pipe, and a control valve is also connected to the pipe on the raw fluid tank (51) and the second diaphragm pump (52). A third flow sensor (53) is connected to the second diaphragm pump (52) by a pipe. The third flow sensor (53) is connected to the main water tank (1) and the mixing tank (2) by a three-way pipe. Two automatic ball valves (17) are also installed on the three-way pipe on the third flow sensor (53) to control the flow of cutting fluid raw fluid into the main water tank (1) and the mixing tank (2).

6. The high-precision intelligent cutting fluid supply system according to claim 1, characterized in that: The filtrate supply system (3) includes a first diaphragm pump (31), a first flow sensor (32), and a filtrate tank (33). The first flow sensor (32) and the filtrate tank (33) are connected by a pipe, and a control valve is connected to the pipe between the first flow sensor (32) and the filtrate tank (33). The first flow sensor (32) is connected to a first diaphragm pump (31) for pumping the filtrate in the filtrate tank (33) into the main water tank (1).

7. The high-precision intelligent cutting fluid supply system according to claim 1, characterized in that: The extended liquid supply system (8) includes an extended water tank (81). A standby liquid supply pump (82) and a liquid supply pump (83) are connected to the extended water tank (81) via pipes. The standby liquid supply pump (82) and the liquid supply pump (83) are connected in parallel. An infrared liquid level sensor (84) and a liquid filling gun (85) are also connected to the pipe between the extended water tank (81) and the standby liquid supply pump (82) and the liquid supply pump (83). The inlet end of the standby liquid supply pump (82) and the liquid supply pump (83) is connected to the main water tank (1) via pipes. The pipe connecting the standby liquid supply pump (82) and the liquid supply pump (83) to the main water tank (1) is also equipped with a control valve for switching the operation of the standby liquid supply pump (82) and the liquid supply pump (83). A drain pipe with a control valve is also connected to the pipe connecting the standby liquid supply pump (82) and the liquid supply pump (83) to the main water tank (1).

8. The high-precision intelligent cutting fluid supply system according to claim 1, characterized in that: The control system includes a pneumatic system (6), which is used to drive the first diaphragm pump (31) in the filtrate supply system (3), the second diaphragm pump (52) in the raw liquid supply system (5), and the standby pump (82) and the supply pump (83) in the extended liquid supply system (8). The pneumatic system (6) is used to control the opening and closing of the automatic ball valve (17).

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