Dual-temperature-control recoverable filtering integrated equipment

Abstract

The invention discloses double-temperature-control recoverable filtering integrated equipment. A refrigeration module of the equipment is used for providing a cold source for a circulating filtering recovery module and a single-cold circulating module; the circulating filtration recovery module is used for realizing circulation, temperature control and filtration of cutting fluid of more than one processing equipment; the single cold circulation module is used for realizing circulation, temperature control and filtration of cutting fluid of single processing equipment; the external expansion module is used for precipitating and lifting the cutting fluid of more than one processing equipment with a height lifting requirement; the control module is used for controlling work of the refrigeration module, the circulating filtration recovery module, the single-cold circulation module and the external expansion module; the shell is used for fixedly assembling the refrigerating module, the circulating filtering and recycling module, the single-cold circulating module and the control module. The problems that in the prior art, the temperature of cutting (grinding) liquid and the temperature of a main shaft cannot be controlled at the same time, the cutting liquid filtering efficiency is low, cost is high, equipment liquid supply is unbalanced, and function expansibility is poor are solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of temperature control and filtration of cutting (grinding) fluids, and particularly relates to a dual-temperature-control recyclable filtration integrated device. Background Art

[0002] In the field of machining, the temperature control of cutting (grinding) fluids and spindles, as well as the filtration treatment of cutting fluids, are crucial for machining accuracy, equipment life, and production efficiency.

[0003] Traditional equipment has obvious deficiencies in temperature control. Most products can only perform single-temperature control on cutting (grinding) fluids and cannot take into account the temperature adjustment of the spindle. This means that in actual machining, if effective cooling of the spindle is to be achieved, a separate refrigeration device must be additionally equipped. In this way, not only does the equipment procurement cost increase, but also the spatial layout of the production workshop becomes more complex, and the difficulty of equipment management and maintenance also increases.

[0004] Existing cutting fluid filtration methods have many drawbacks. Some products rely on natural precipitation to remove cutting impurities, and this method is extremely inefficient. Impurity precipitation takes a lot of time. To ensure the continuity of machining, the equipment can only be maintained and cleaned regularly by shutting down. During the cleaning process, a large amount of incompletely contaminated cutting fluid will be wasted, and replenishing the cutting fluid increases the production cost. Moreover, frequent shutdown cleaning not only reduces production efficiency but also increases labor costs.

[0005] In addition, each refrigeration device can usually only cool one cutting (grinding) device. When supplying fluid to multiple devices, the situation of unbalanced supply and return fluid will occur. This not only causes waste of cutting fluid but also may cause environmental pollution due to cutting fluid leakage. On a large-scale machining production line, if the fluid supply problem cannot be reasonably solved, it will seriously affect the normal progress of production, increase environmental protection pressure and treatment costs. It is difficult to make flexible adjustments and upgrades in the face of different machining requirements and special usage scenarios. Summary of the Invention

[0006] Therefore, the present invention provides a dual-temperature-control recyclable filtration integrated device to solve the problems in the prior art that the cutting (grinding) fluid and the spindle cannot be temperature-controlled simultaneously, the filtration efficiency of the cutting fluid is low and the cost is high, the equipment fluid supply is unbalanced, and the function expansion is poor.

[0007] To achieve the above object, the present invention provides the following technical solution: A dual-temperature-control recyclable filtration integrated device, comprising a refrigeration module, a circulating filtration and recycling module, a single-cooling circulation module, an external expansion module, a control module, and a housing;

[0008] The refrigeration module is used to provide a cold source for the circulating filtration and recycling module and the single-cooling circulation module;

[0009] The cyclic filtration and recovery module is used to realize the circulation, temperature control and filtration of the cutting fluid of more than one processing device;

[0010] The single-cooling cycle module is used to realize the circulation, temperature control and filtration of the cutting fluid of a single processing device;

[0011] The external expansion module is used to precipitate and lift the cutting fluid of more than one processing device with a demand for height increase;

[0012] The control module is used to control the operation of the refrigeration module, the cyclic filtration and recovery module, the single-cooling cycle module, and the external expansion module;

[0013] The housing is used to fixedly assemble the refrigeration module, the cyclic filtration and recovery module, the single-cooling cycle module and the control module.

[0014] As a preferred solution for the dual-temperature-control recyclable filtration integrated device, the refrigeration module includes an air-cooling system and a liquid-cooling system;

[0015] The air-cooling system includes a cooling fan, the cooling fan is fixed on the outer shell of the refrigeration module through a bracket, the cooling fan is electrically connected to the control module, and the start-stop and rotation speed of the cooling fan are controlled by the control module;

[0016] The liquid-cooling system is provided with a cold source water supply interface and a cold source water return interface, and the cold source water supply interface and the cold source water return interface are respectively connected to the refrigeration access points of the cyclic filtration and recovery module and the single-cooling cycle module through metal hoses.

[0017] As a preferred solution for the dual-temperature-control recyclable filtration integrated device, the cyclic filtration and recovery module includes a clean water tank, a sewage tank and a filtration device;

[0018] Both the clean water tank and the sewage tank are provided with liquid level marks, a filtration device is arranged between the clean water tank and the sewage tank, the filtration device forms a dual-filtration circuit with one standby, and each filtration circuit of the dual-filtration circuit includes a filter and a pressure sensor connected to the inlet and outlet of the filter; a detachable filter element is installed in the filter;

[0019] The liquid supply port of the clean water tank is connected with a first water pump; the first water pump is configured with a first liquid supply pipeline and a first liquid discharge pipeline, and the clean water tank is also connected with a liquid supplement pipeline;

[0020] The sewage tank is connected with a second water pump between the dual-filtration circuit; the sewage tank is configured with an overflow pipeline, a first liquid return pipeline and a second liquid discharge pipeline.

[0021] As a preferred solution for the dual-temperature-controlled recyclable filtration integrated device, when the pressure sensors at the inlet and outlet of the filter in any one of the working filtration circuits in the dual-filtration circuit detect that the pressure difference exceeds the preset threshold, the control module issues an instruction to switch to another standby filtration circuit through the electric three-way valve, and the control module issues an alarm prompt for replacing the filter element.

[0022] As a preferred solution for the dual-temperature-controlled recyclable filtration integrated device, the single-cooling circulation module includes a second liquid supply pipeline and a second liquid return pipeline;

[0023] The second liquid supply pipeline is successively provided with a circulation pump, a plate heat exchanger, a temperature sensor, and a pressure sensor. The inlet of the circulation pump is connected to the cold source outlet of the refrigeration module, the outlet of the circulation pump is connected to the hot side inlet of the plate heat exchanger, and the hot side outlet of the plate heat exchanger is connected to the usage end of the processing equipment;

[0024] One end of the second liquid return pipeline is connected to the usage end of the processing equipment, and the other end of the second liquid return pipeline is connected to the cold source inlet of the refrigeration module through the plate heat exchanger to form a closed circulation.

[0025] As a preferred solution for the dual-temperature-controlled recyclable filtration integrated device, the external expansion module includes a sedimentation tank and a lift pump. The sedimentation tank is provided with a liquid return inlet and a liquid discharge outlet;

[0026] The liquid return inlet is connected to the sewage tank through a pipeline. The lift pump is connected to the pipeline of the liquid return inlet and is electrically connected to the control module. When the control module receives the signal that the liquid level detected by the liquid level sensor in the sedimentation tank reaches the preset height, it controls the lift pump to start to lift the liquid when the liquid return height is insufficient.

[0027] As a preferred solution for the dual-temperature-controlled recyclable filtration integrated device, the control module is built-in with a liquid level control system. The liquid level control system is electrically connected to the liquid level sensors of the clean water tank and the sewage tank in the circulating filtration and recycling module through a circuit;

[0028] When the liquid level in the clean water tank is lower than the lower limit liquid level, the liquid level control system controls the water replenishment solenoid valve of the clean water tank to open for automatic water replenishment;

[0029] When the liquid level in the sewage tank is higher than the upper limit liquid level, the liquid level control system controls the sewage discharge solenoid valve of the sewage tank to open for automatic liquid discharge.

[0030] As a preferred solution for the dual-temperature-controlled recyclable filtration integrated device, the algorithm for the control module to achieve liquid supply and return balance is a PID regulation algorithm based on fuzzy control, and the formula is:

[0031]

[0032] Wherein, u(k) is the control quantity at the current moment, used to adjust the opening degree of the liquid supply pump or the liquid return valve; K p is the proportional coefficient, T i is the integral time constant, T d is the differential time constant; e(k) is the deviation value between the liquid level difference between the clean water tank and the sewage tank and the set liquid level difference at the current moment; e(k - 1) is the deviation value at the previous moment; T s is the sampling period; according to the liquid level data collected by the liquid level sensor in real time, the fuzzy subset of the input variable is determined through fuzzy processing, and the reasoning operation is carried out according to the preset fuzzy rules, and then the accurate control quantity u(k) is obtained through defuzzification to adjust the liquid supply and liquid return processes, so as to achieve the balance of liquid supply and return.

[0033] As an optimal solution of the dual-temperature-controlled recyclable filtration integrated device, the control module selects the air-cooled refrigeration mode or the water-cooled refrigeration mode through a program. The control module internally integrates a communication module, and the communication module is compatible with Modbus and Profibus industrial bus protocols to connect external devices to achieve function expansion;

[0034] The control module is also provided with an alarm management system. When the device fails, the alarm management system emits an audible and visual alarm signal, and at the same time stores the alarm information in the internal memory.

[0035] As an optimal solution of the dual-temperature-controlled recyclable filtration integrated device, it also includes a host computer display interface. The host computer display interface includes a main interface and a spindle interface. The main interface is used to display the operating status of the cutting fluid circuit of the circulating filtration and recycling module in real time, including liquid supply flow, liquid supply pressure, temperature, liquid level, solenoid valve switch status, and remaining maintenance time information of the filter;

[0036] The spindle interface is used to display the operating status of the spindle coolant circuit of the single-cooling circulation module in real time, including inlet and outlet temperatures, circulating flow rate, and pump group operating status information.

[0037] The beneficial effects of the present invention are as follows:

[0038] First, the refrigeration module provides cold sources for the circulating filtration and recycling module and the single-cooling circulation module respectively, and can control the temperatures of the spindle and the cutting fluid at the same time, avoiding the influence of temperature fluctuations on the machining accuracy and the equipment life, and improving the product quality and the equipment stability.

[0039] Second, the circulating filtration and recycling module realizes the circulation, temperature control and filtration of the cutting fluid of multiple processing equipment. Moreover, the double-filtration circuit design of the filtration device enables the filter element to be replaced online without stopping the machine, improving the production efficiency; at the same time, it reduces the cost increase caused by frequent replacement of filtration consumables, and also avoids the influence of cutting fluid impurities on the machining quality.

[0040] Thirdly, the single-cooling cycle module circulates, controls the temperature, and filters the cutting fluid for a single processing device, which can provide more precise temperature control for specific devices, meet the needs of high-precision processing, ensure the stable operation of the devices, and reduce device failures.

[0041] Fourthly, the external expansion module precipitates and lifts the cutting fluid of multiple processing devices. Cooperating with the coordinated control of the control module, it can meet the usage requirements of different devices and improve the performance of the overall processing system. At the same time, it avoids processing problems caused by insufficient return liquid height and ensures the continuity of processing.

[0042] Fifthly, the control module uniformly controls the operation of each module, realizes the automation and intelligence of device operation, and improves the operation convenience. It can monitor the device status in real time, discover and handle problems in a timely manner, and reduce the difficulty and cost of device maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only exemplary, and for those of ordinary skill in the art, without creative efforts, other implementation drawings can also be obtained according to the provided drawings.

[0044] The structures, ratios, sizes, etc. illustrated in this specification are only used to cooperate with the content disclosed in the specification for those who are familiar with this technology to understand and read, and are not used to limit the limited conditions under which the present invention can be implemented. Therefore, they do not have technical essence. Any modification of the structure, change of the proportional relationship, or adjustment of the size should still fall within the scope covered by the technical content disclosed in the present invention without affecting the effects that the present invention can produce and the purposes that can be achieved.

[0045] Figure 1 It is a schematic diagram of the overall architecture of the dual-temperature-control recyclable filtration integrated device provided by the embodiment of the present invention;

[0046] Figure 2 It is a schematic diagram of the refrigeration module architecture of the dual-temperature-control recyclable filtration integrated device provided by the embodiment of the present invention;

[0047] Figure 3 It is a schematic diagram of the circulation filtration and recovery module architecture of the dual-temperature-control recyclable filtration integrated device provided by the embodiment of the present invention;

[0048] Figure 4 It is a schematic diagram of the single-cooling cycle module architecture of the dual-temperature-control recyclable filtration integrated device provided by the embodiment of the present invention;

[0049] Figure 5Schematic diagram of the external expansion module architecture of the dual-temperature-controlled recyclable filtration integrated device provided by the embodiments of the present invention;

[0050] Figure 6 Schematic diagram of the mechanical structure of the dual-temperature-controlled recyclable filtration integrated device provided by the embodiments of the present invention;

[0051] Figure 7 Schematic diagram of the main interface of the dual-temperature-controlled recyclable filtration integrated device provided by the embodiments of the present invention;

[0052] Figure 8 Schematic diagram of the main shaft interface of the dual-temperature-controlled recyclable filtration integrated device provided by the embodiments of the present invention.

[0053] In the figure, 1, refrigeration module; 2, circulating filtration and recycling module; 3, single-cooling circulation module; 4, external expansion module; 5, control module; 6, housing; 7, air-cooling system; 8, liquid-cooling system; 9, cooling fan; 10, clean water tank; 11, sewage tank; 12, double filtration circuit; 13, first water pump; 14, first liquid supply pipeline; 15, replenishing pipeline; 16, first drainage pipeline; 17, second water pump; 18, overflow pipeline; 19, first return liquid pipeline; 20, second drainage pipeline; 21, second liquid supply pipeline; 22, second return liquid pipeline; 23, circulation pump; 24, plate heat exchanger; 25, sedimentation tank; 26, lift pump. Detailed implementation manners

[0054] The following specific embodiments illustrate the implementation manners of the present invention. Those skilled in the art can easily understand the other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0055] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6, an embodiment of the present invention provides a dual-temperature-control recyclable filtration integrated device, including a refrigeration module 1, a circulating filtration and recycling module 2, a single-cooling circulating module 3, an external expansion module 4, a control module 5, and a housing 6; the refrigeration module 1 is used to provide a cold source for the circulating filtration and recycling module 2 and the single-cooling circulating module 3; the circulating filtration and recycling module 2 is used to realize the circulation, temperature control, and filtration of the cutting fluid of more than one processing device; the single-cooling circulating module 3 is used to realize the circulation, temperature control, and filtration of the cutting fluid of a single processing device; the external expansion module 4 is used to precipitate and lift the cutting fluid of more than one processing device with a height increase requirement; the control module 5 is used to control the operation of the refrigeration module 1, the circulating filtration and recycling module 2, the single-cooling circulating module 3, and the external expansion module 4; the housing 6 is used to fixedly assemble the refrigeration module 1, the circulating filtration and recycling module 2, the single-cooling circulating module 3, and the control module 5.

[0056] Among them, the refrigeration module 1 is the core of the cold source supply of the device, providing cooling capacity for the circulating filtration and recycling module 2 and the single-cooling circulating module 3, and ensuring that the cutting fluid and the spindle coolant can be maintained at an appropriate temperature through the circulating filtration and recycling module 2 and the single-cooling circulating module 3. The circulating filtration and recycling module 2 faces multiple processing devices, processes the cutting fluid through circulation, temperature control, and filtration, and ensures that it can continuously meet the processing requirements. The single-cooling circulating module 3 processes the cutting fluid of a single device to meet the independent control requirements of special devices for the coolant. The external expansion module 4 processes the cutting fluid of multiple devices by precipitating and lifting it in case of insufficient return liquid height, optimizing the recycling of the cutting fluid. The control module 5 coordinates the work of each module to ensure the stable operation of the device. The housing 6 plays a role in protecting and fixing each module, making the device form a whole, which is convenient for installation and use.

[0057] In this embodiment, the refrigeration module 1 includes an air-cooling system 7 and a liquid-cooling system 8; the air-cooling system 7 includes a cooling fan 9, the cooling fan 9 is fixed on the outer shell of the refrigeration module 1 through a bracket, the cooling fan 9 is electrically connected to the control module 5, and the start-stop and rotation speed of the cooling fan 9 are controlled by the control module 5; the liquid-cooling system 8 is provided with a cold source water supply interface and a cold source water return interface, and the cold source water supply interface and the cold source water return interface are respectively connected to the refrigeration access points of the circulating filtration and recycling module 2 and the single-cooling circulating module 3 through metal hoses.

[0058] Specifically, the air-cooling system 7 uses a cooling fan 9 to force air flow to carry away heat. The control module 5 controls the start / stop and speed of the cooling fan 9 according to the temperature requirement during the operation of the device. When the device temperature rises, the control module 5 increases the fan speed to accelerate heat dissipation; when the temperature drops, the speed is reduced or the fan is stopped to save energy. The liquid-cooling system 8 conducts heat exchange through cold source water. The cold source water supply interface delivers low-temperature water to the circulation filtration and recovery module 2 and the single-cooling circulation module 3, and after absorbing heat, it returns through the cold source water return interface. The metal hose connection method not only ensures the connection tightness but also has a certain flexibility, facilitating the internal pipeline layout and installation of the device.

[0059] In this embodiment, the circulation filtration and recovery module 2 includes a clean water tank 10, a sewage tank 11, and a filtration device; both the clean water tank 10 and the sewage tank 11 are provided with liquid level indicators. A filtration device is provided between the clean water tank 10 and the sewage tank 11, and the filtration device forms a dual-filtration loop 12 with one standby. Each filtration loop of the dual-filtration loop 12 includes a filter and a pressure sensor connected to the inlet and outlet of the filter; a detachable filter element is installed inside the filter; the liquid supply port of the clean water tank 10 is connected to a first water pump 13; the first water pump 13 is configured with a first liquid supply pipeline 14 and a first liquid discharge pipeline 16, and the clean water tank 10 is also connected to a liquid replenishment pipeline 15; a second water pump 17 is connected between the sewage tank 11 and the dual-filtration loop 12; the sewage tank 11 is configured with an overflow pipeline 18, a first liquid return pipeline 19, and a second liquid discharge pipeline 20.

[0060] Specifically, the clean water tank 10 stores clean cutting fluid, and the sewage tank 11 collects the used cutting fluid. The liquid level indicators are used to monitor the liquid level of the water tank in real time and provide liquid level information to the control module 5. The dual-filtration loop 12 design of the filtration device ensures that when the filter element of one loop is blocked, the other loop can be immediately put into use to ensure the continuity of filtration. The pressure difference between the inlet and outlet of the filter is detected by the pressure sensor. When the pressure difference exceeds the preset threshold, it indicates that the filter element is blocked and needs to be replaced. The first water pump 13 is responsible for transporting the cutting fluid in the clean water tank 10 to the processing equipment through the first liquid supply pipeline 14. The liquid replenishment pipeline 15 is used to replenish the cutting fluid to the clean water tank 10, and the first liquid discharge pipeline 16 is used to discharge the excess or unqualified cutting fluid in the clean water tank 10. The second water pump 17 transports the cutting fluid in the sewage tank 11 to the filtration device for filtration treatment. The overflow pipeline 18 prevents the liquid level of the sewage tank 11 from being too high. The first liquid return pipeline 19 is used to collect the cutting fluid returned from the processing equipment, and the second liquid discharge pipeline 20 is used to discharge the sewage in the sewage tank 11.

[0061] In this embodiment, when the pressure sensors at the inlet and outlet of the filter in any one of the working filter circuits in the double filter circuit 12 detect that the pressure difference exceeds a preset threshold, the control module 5 issues an instruction to switch to another standby filter circuit through the electric three-way valve, and the control module 5 issues an alarm prompt for replacing the filter element.

[0062] Specifically, the pressure sensors monitor the working state of the filter in real time. When the pressure difference exceeds the preset threshold, it means that the filtration resistance of the filter element increases, which may affect the filtration effect and flow rate. After receiving this signal, the control module 5 issues an instruction to control the action of the electric three-way valve, switching the cutting fluid to the standby filter circuit to ensure the uninterrupted filtration process. At the same time, the control module 5 issues an alarm prompt to remind the operator to replace the clogged filter element in time to maintain the normal operation of the filtration device and the filtration effect.

[0063] In this embodiment, the single-cooling circulation module 3 includes a second liquid supply pipeline 21 and a second liquid return pipeline 22; the second liquid supply pipeline 21 is sequentially provided with a circulation pump 23, a plate heat exchanger 24, a temperature sensor and a pressure sensor. The inlet of the circulation pump 23 is connected to the cold source outlet of the refrigeration module 1, the outlet of the circulation pump 23 is connected to the hot side inlet of the plate heat exchanger 24, and the hot side outlet of the plate heat exchanger 24 is connected to the usage end of the processing equipment; one end of the second liquid return pipeline 22 is connected to the usage end of the processing equipment, and the other end of the second liquid return pipeline 22 is connected to the cold source inlet of the refrigeration module 1 through the plate heat exchanger 24 to form a closed circulation.

[0064] Specifically, the circulation pump 23 provides power in the second liquid supply pipeline 21 to transport the low-temperature coolant provided by the refrigeration module 1 to the plate heat exchanger 24. The plate heat exchanger 24 is a heat exchange component. The hot side inlet receives the coolant sent by the circulation pump 23 and exchanges heat with the high-temperature coolant returned from the usage end of the processing equipment to reduce the temperature of the coolant. The supporting temperature sensor and pressure sensor monitor the temperature and pressure of the coolant in real time to ensure that they are within a suitable range. The usage end of the processing equipment returns the high-temperature coolant after absorbing heat through the second liquid return pipeline 22, and after being cooled by the plate heat exchanger 24 again, it returns to the refrigeration module 1 to form a closed circulation to ensure the continuous cooling effect of the coolant.

[0065] In this embodiment, the external expansion module 4 includes a sedimentation tank 25 and a lift pump 26. The sedimentation tank 25 is provided with a liquid return inlet and a liquid discharge outlet; the liquid return inlet is connected to the sewage tank 11 through a pipeline, the lift pump 26 is connected to the pipeline of the liquid return inlet, and the lift pump 26 is electrically connected to the control module 5. When the control module 5 receives the signal that the liquid level sensor in the sedimentation tank 25 detects that the liquid level reaches the preset height, it controls the lift pump 26 to start to lift the liquid when the liquid return height is insufficient.

[0066] Specifically, the sedimentation tank 25 is used to further sediment the impurities in the cutting fluid in the sewage tank 11, improving the cleanliness of the cutting fluid. The return liquid inlet receives the cutting fluid in the sewage tank 11. Inside the sedimentation tank 25, the heavier impurities settle at the bottom. When the liquid level in the sedimentation tank 25 reaches the preset height, the liquid level sensor sends a signal to the control module 5. After receiving the signal, the control module 5 starts the lift pump 26. The lift pump 26 lifts the sedimented cutting fluid to an appropriate height so that it can smoothly return to the circulation system for reuse, solving the problem that the cutting fluid cannot be normally recovered due to insufficient return liquid height.

[0067] In this embodiment, the control module 5 is built-in with a liquid level control system. The liquid level control system is electrically connected to the liquid level sensors of the clean water tank 10 and the sewage tank 11 in the circulation filtration and recovery module 2. When the liquid level of the clean water tank 10 is lower than the lower limit liquid level, the liquid level control system controls the water replenishing solenoid valve of the clean water tank 10 to open for automatic water replenishment. When the liquid level of the sewage tank 11 is higher than the upper limit liquid level, the liquid level control system controls the sewage discharge solenoid valve of the sewage tank 11 to open for automatic liquid discharge.

[0068] Specifically, the liquid level control system obtains the liquid level information of the clean water tank 10 and the sewage tank 11 in real time through the liquid level sensors. When the liquid level of the clean water tank 10 is lower than the lower limit liquid level, it means that the cutting fluid is insufficient, which may affect the normal operation of the processing equipment. The liquid level control system controls the water replenishing solenoid valve to open to supplement the cutting fluid, ensuring the continuity of the processing process. When the liquid level of the sewage tank 11 is higher than the upper limit liquid level, it may cause problems such as overflow. The liquid level control system controls the sewage discharge solenoid valve to open to discharge the excess sewage, ensuring the normal operation of the equipment and environmental safety.

[0069] In a possible embodiment, the algorithm for the control module 5 to achieve the balance of supply and return liquid is a PID regulation algorithm based on fuzzy control, and the formula is:

[0070]

[0071] In the formula, u(k) is the control quantity at the current moment, used to adjust the opening degree of the supply pump or the return liquid valve; K p is the proportionality coefficient, T i is the integral time constant, T d is the differential time constant; e(k) is the deviation value between the liquid level difference between the clean water tank 10 and the sewage tank 11 at the current moment and the set liquid level difference; e(k - 1) is the deviation value at the previous moment; T sis the sampling period; according to the liquid level data collected in real time by the liquid level sensor, the fuzzy subset of the input variable is determined through fuzzy processing, reasoning operations are performed based on the preset fuzzy rules, and then an accurate control quantity is obtained through defuzzification to adjust the liquid supply and liquid return processes, achieving the balance of liquid supply and return.

[0072] Specifically, the control module 5 uses a PID adjustment algorithm based on fuzzy control to perform operations according to the deviation value between the liquid level difference of the clean water tank 10 and the sewage tank 11 and the set liquid level difference. The proportionality coefficient K p quickly adjusts the control quantity according to the deviation value, and the integral time constant T i is used to eliminate the steady-state error of the system, and the differential time constant T d predicts the change trend of the deviation value and adjusts the control quantity in advance. Through fuzzy processing, the continuous liquid level deviation value is converted into a fuzzy subset, reasoning is performed based on the preset fuzzy rules, and then an accurate control quantity is obtained through defuzzification, so as to accurately adjust the opening of the liquid supply pump or the liquid return valve, achieve the balance of liquid supply and return, and ensure the stable operation of the equipment.

[0073] In a possible embodiment, the control module 5 selects the air-cooled refrigeration mode or the water-cooled refrigeration mode through a program. The control module 5 internally integrates a communication module, and the communication module is compatible with Modbus and Profibus industrial bus protocols for connecting external devices to achieve function expansion; the control module 5 is also provided with an alarm management system. When a fault occurs in the equipment, the alarm management system issues an audible and visual alarm signal and stores the alarm information in the internal memory at the same time.

[0074] Specifically, the program of the control module 5 has a mode selection function, and the user can select the air-cooled or water-cooled refrigeration mode according to actual needs to adapt to different working environments and equipment requirements. The communication module is compatible with a variety of industrial bus protocols, which is convenient for connecting external devices, such as other monitoring devices, automated production lines, etc., to achieve the expansion of equipment functions and system integration. The alarm management system monitors the operating status of each module of the equipment in real time. When a fault is detected, an audible and visual alarm signal is immediately issued to remind the operator to handle it in time. At the same time, the alarm information is stored in the internal memory, which is convenient for subsequent query and analysis of the cause of the fault, and for equipment maintenance and improvement.

[0075] See Figure 7 and Figure 8, in a possible embodiment, it further includes a host computer display interface, and the host computer display interface includes a main interface and a spindle interface. The main interface is used to display in real time the operating status of the cutting fluid circuit of the circulating filtration and recycling module 2, including the supply flow rate, supply pressure, temperature, liquid level, solenoid valve switch status, and remaining maintenance time information of the filter. The spindle interface is used to display in real time the operating status of the spindle coolant circuit of the single-cooling circulation module 3, including the inlet and outlet temperatures, circulation flow rate, and pump group operating status information.

[0076] Specifically, the host computer display interface provides an intuitive display of the operating status for the spindle and the cutting fluid circuit. The main interface presents in real time the key parameters of the circulating filtration and recycling module 2. Operators can understand the working conditions of the cutting fluid circuit through these parameters, such as the solenoid valve switch status of the cutting fluid supply, the display data of the cutting fluid supply flow rate, the display data of the cutting fluid supply pressure, the status of the flow switch before the cutting plate heat exchanger, the display data of the cutting fluid supply temperature, the solenoid valve switch status of the cutting fluid replenishment, the display data of the flow rate after the intermediate filtration, the solenoid valve switch status of the drain of the clean water tank 10, the remaining maintenance time of the intermediate coarse filter, the pressure display data before the first-stage intermediate filtration, the pressure display data after the first-stage intermediate filtration, the remaining maintenance time of the first-stage intermediate filter, the pressure display data before the second-stage intermediate filtration, the pressure display data after the second-stage intermediate filtration, the remaining maintenance time of the second-stage intermediate filter, the solenoid valve switch status of the drain of the sewage tank 11, the liquid level status display of the clean water tank 10, and the liquid level status display of the sewage tank 11. The spindle interface focuses on the single-cooling circulation module 3, showing the inlet and outlet temperatures, circulation flow rate, and pump group operating status of the spindle coolant circuit, helping operators master the operating conditions of the spindle cooling system, ensuring that the spindle works at an appropriate temperature, and guaranteeing the machining accuracy and equipment safety.

[0077] The working process of the present invention is as follows:

[0078] I. Equipment startup and initialization

[0079] Power supply and self-check: After turning on the equipment power supply, the control module 5 starts to work and comprehensively checks the hardware connection status of each module. The control module 5 sends detection signals to the supporting sensors to confirm whether the sensors can normally collect data; it checks the drive circuits of each actuator, such as water pumps, valves, fans, etc., to ensure that they can respond to control instructions. If any abnormality is found, the control module 5 will immediately store the fault information internally and send out corresponding alarm prompts through the host computer display interface to remind the operator to check and repair.

[0080] Refrigeration Mode Selection and Startup: According to the actual usage scenarios and requirements, the operator can select the air-cooled refrigeration mode or the water-cooled refrigeration mode through the operation interface of the control module 5. When selecting the air-cooled mode, the control module 5 sends a startup signal to the cooling fan 9 of the air-cooled system 7. The cooling fan 9 is fixed to the outer shell of the refrigeration module 1 through a bracket and is electrically connected to the control module 5. The control module 5 controls the rotational speed of the fan by adjusting the voltage of the fan or the pulse width modulation (PWM) signal according to the preset temperature threshold. When the temperature is relatively low at the initial stage of equipment startup, the fan operates at a low rotational speed; as the operating temperature of the equipment rises, the rotational speed of the fan increases accordingly to enhance the heat dissipation effect. When selecting the water-cooled mode, the control module 5 checks whether the connections of the cold source water supply interface and the cold source water return interface of the liquid cooling system 8 are normal, confirms that the metal hose has no leakage, the cold source water supply equipment (such as a chiller) has been started normally, and the water temperature and water pressure are within the appropriate range. After being ready, it prepares for subsequent circulating cooling.

[0081] II. Working Process of the Circulating Filtration and Recycling Module 2

[0082] Cutting Fluid Recycling: During the machining process, the cutting fluid used by multiple machining devices flows into the sewage tank 11 through the first return pipeline 19. The liquid level sensor on the sewage tank 11 monitors the liquid level change in real time and transmits the liquid level information to the control module 5 in the form of an electrical signal. When the liquid level gradually rises and approaches the upper limit liquid level, the control module 5 records the liquid level change trend. If the liquid level continues to rise and reaches the upper limit liquid level, the control module 5 will take corresponding measures, such as controlling the sewage discharge solenoid valve to open and discharging some sewage to prevent sewage overflow.

[0083] Filtration Treatment: When the liquid level of the sewage tank 11 reaches a certain height and meets the filtration conditions, the control module 5 sends a startup instruction to the second water pump 17. After the second water pump 17 starts, it transports the cutting fluid in the sewage tank 11 to the filtration device. The dual filtration circuit 12 design of the filtration device ensures the continuity and reliability of filtration. During normal operation, one of the filtration circuits is in the working state, and the cutting fluid passes through the filter inlet, filter element in sequence, and impurities are intercepted by the filter element, and the clean cutting fluid flows out from the filter outlet. The pressure sensors at the inlet and outlet of the filter monitor the pressure difference in real time. When the pressure difference exceeds the preset threshold, it indicates that too much impurity has accumulated on the surface of the filter element, resulting in an increase in filtration resistance. At this time, the pressure sensor transmits the signal to the control module 5, and the control module 5 issues an instruction to drive the electric three-way valve to switch to the standby filtration circuit to ensure the continuous filtration of the cutting fluid. At the same time, the control module 5 issues an alarm prompt for replacing the filter element through the upper computer display interface to remind the operator to replace the clogged filter element in time.

[0084] Purification and storage: The cutting fluid purified by the filtration device flows into the clean water tank 10. The liquid level sensor in the clean water tank 10 monitors the liquid level in real time. When the liquid level is lower than the lower limit liquid level, the liquid level sensor sends a signal to the control module 5. After receiving the signal, the control module 5 controls the water replenishment solenoid valve to open, and replenishes the cutting fluid from an external water source (such as tap water or a dedicated cutting fluid replenishment tank) to ensure that there is sufficient clean cutting fluid in the clean water tank 10 to supply the processing equipment. During the water replenishment process, the liquid level sensor continuously monitors the liquid level change. When the liquid level reaches the appropriate height, the control module 5 controls the water replenishment solenoid valve to close and stop the water replenishment to prevent the clean water tank 10 from overflowing.

[0085] Liquid supply cycle: The first water pump 13 is started under the control of the control module 5, and conveys the clean cutting fluid in the clean water tank 10 to multiple processing equipment through the first liquid supply pipeline 14. A flow sensor, a pressure sensor, and a temperature sensor are installed on the first liquid supply pipeline 14. These sensors monitor the flow rate, pressure, and temperature of the cutting fluid in real time and feed the data back to the control module 5. The control module 5 adjusts the rotation speed of the first water pump 13 according to the preset parameter range to ensure the stability of the liquid supply flow rate and pressure. The liquid replenishment pipeline 15 is used to replenish the cutting fluid when the cutting fluid loss is large to maintain the total amount of cutting fluid in the system. The first drainage pipeline 16 is used to drain the cutting fluid in the clean water tank 10 that has deteriorated or does not meet the usage requirements due to long-term use to ensure the liquid supply quality.

[0086] III. Working process of the single cold cycle module 3

[0087] Coolant supply: The circulation pump 23 is started, sucks in the low-temperature coolant at the cold source outlet of the refrigeration module 1, and conveys it to the plate heat exchanger 24 through the second liquid supply pipeline 21. The rotation speed of the circulation pump 23 is adjusted by the control module 5 according to the data fed back by the temperature sensor and pressure sensor on the second liquid supply pipeline 21. When the temperature sensor detects that the coolant temperature is too high or the pressure sensor detects that the pressure is too low, the control module 5 increases the rotation speed of the circulation pump 23 to increase the coolant flow rate to enhance the cooling effect; otherwise, it reduces the rotation speed of the circulation pump 23 to save energy.

[0088] Temperature and pressure monitoring: The temperature sensor and pressure sensor on the second liquid supply pipeline 21 transmit the real-time collected coolant temperature and pressure data to the control module 5. The control module 5 judges whether the state of the coolant is normal according to the preset temperature and pressure range. If the temperature is too high, the control module 5 will increase the refrigeration capacity of the refrigeration module 1 to lower the coolant temperature; if the pressure is abnormal, the control module 5 will check components such as the circulation pump 23, the pipeline, and the plate heat exchanger 24 to judge whether there are problems such as blockage or leakage, and take corresponding measures to deal with them.

[0089] Closed-loop circulation: The high-temperature coolant after being used by the processing equipment returns through the second liquid return pipeline 22. During the return process, the high-temperature coolant first enters the plate heat exchanger 24 and exchanges heat with the low-temperature coolant in the second liquid supply pipeline 21. The plate heat exchanger 24 uses its efficient heat exchange structure to transfer the heat of the high-temperature coolant to the low-temperature coolant, and its own temperature decreases. The coolant after heat exchange then returns to the refrigeration module 1 through the cold source inlet of the refrigeration module 1 for further cooling, forming a closed-loop circulation. In this way, low-temperature coolant can be continuously provided for the processing equipment to ensure the temperature stability of the equipment during the processing.

[0090] IV. Working process of the external expansion module 4

[0091] Precipitation treatment: When the cutting fluid of multiple processing equipment with height increase requirements flows into the sedimentation tank 25, the sedimentation tank 25 further precipitates the cutting fluid by gravity. The internal structure design of the sedimentation tank 25 is conducive to the settlement of impurities, and the heavier impurities gradually settle to the bottom of the sedimentation tank 25 under the action of gravity. The conical bottom design of the sedimentation tank 25 makes it easier for impurities to gather, facilitating regular cleaning.

[0092] Lifting and conveying: The liquid level sensor in the sedimentation tank 25 monitors the liquid level change in real time. When the liquid level reaches the preset height, the liquid level sensor sends a signal to the control module 5. After receiving the signal, the control module 5 starts the lift pump 26. The lift pump 26 is connected to the pipeline at the liquid return inlet, and lifts the precipitated cutting fluid to an appropriate height so that it can smoothly return to the sewage tank 11 or the circulation system for reuse. During the lifting process, the control module 5 adjusts the rotation speed of the lift pump 26 according to the feedback of the liquid level sensor to ensure that the conveying volume of the cutting fluid matches the system requirements. When the liquid level in the sedimentation tank 25 drops to a certain extent, below the preset liquid level, the control module 5 stops the lift pump 26 to avoid damage to the equipment due to idling.

[0093] V. Coordination and monitoring of the control module 5

[0094] System control: As the core of the equipment, the control module 5 coordinates the work of each module through internal programs and algorithms. Receives real-time data from sensors of each module, such as temperature, pressure, liquid level, flow rate, etc., and sends control instructions to each actuator according to the preset logic and control strategy. Controls the start and stop of the makeup water solenoid valve, sewage discharge solenoid valve, first water pump 13 and second water pump 17 according to the liquid level situation of the circulating filtration and recovery module 2; adjusts the refrigeration capacity of the refrigeration module 1 and the rotation speed of the circulation pump 23 according to the temperature and pressure data of the single-cooling circulation module 3; controls the operation of the lift pump 26 according to the liquid level of the sedimentation tank 25 of the external expansion module 4.

[0095] Fault alarm: The alarm management system of the control module 5 monitors the operating status of the equipment in real time. When a fault occurs, such as filter blockage, abnormal liquid level, excessive temperature or abnormal pressure, the alarm management system will immediately trigger the sound and light alarm device, sound an alarm and display the fault information on the upper computer display interface. At the same time, the alarm management system stores the fault information in the internal memory, including the time, type, and related sensor data of the fault. These fault records can be queried and analyzed by operators to help quickly locate the cause of the fault and perform repairs and maintenance.

[0096] Communication expansion: The communication module integrated in the control module 5 supports industrial bus protocols such as Modbus and Profibus. Through these communication interfaces, the device can exchange data with external devices to achieve function expansion and remote monitoring. The device can be connected to the factory's automation control system, receive production task instructions, and automatically adjust the equipment's operating parameters according to processing requirements; it can also upload the equipment's operating data to the remote monitoring platform, which is convenient for managers to grasp the equipment's operating status in real time and conduct remote diagnosis and maintenance.

[0097] 6. Real-time monitoring of the host computer display interface

[0098] Main interface monitoring: The main interface displays the operating status of the cutting fluid circuit of the circulating filtration and recovery module 2 in real time. The operator can intuitively see information such as the fluid flow, fluid pressure, temperature, liquid level, solenoid valve switch status, and remaining filter maintenance time. By observing these data, the operator can promptly discover abnormal conditions in the system, such as unstable fluid flow may indicate pipe blockage or water pump failure; abnormal liquid level may mean that there is a problem with the water replenishment system or drainage system. The operator can take appropriate measures in a timely manner to make adjustments and repairs based on this information.

[0099] Spindle interface monitoring: The spindle interface displays the operating status of the single cooling circulation module 3 spindle coolant circuit in real time, including inlet and outlet temperatures, circulation flow, and pump group operating status. By monitoring these data, operators can understand the cooling of the spindle and ensure that the spindle works at an appropriate temperature. If the inlet and outlet temperature difference is too large, it may mean that the heat exchange effect of the plate heat exchanger 24 is not good; abnormal circulation flow may mean that there is a problem with the circulation pump 23 or the pipeline. Based on this information, operators can maintain and service the equipment in a timely manner to ensure processing accuracy and equipment safety.

[0100] 7. Equipment shutdown and maintenance

[0101] Equipment Stop: When the processing task is completed or the equipment needs to be stopped, the operator sends a stop instruction through the control module 5. After receiving the instruction, the control module 5 stops the operation of each module in the set order. First, stop the first water pump 13 and the second water pump 17 to prevent the cutting fluid from flowing back; then stop the circulation pump 23 to cut off the coolant circulation; next, stop the refrigeration module 1. Depending on the refrigeration mode, stop the cooling fan 9 or close the cold source water supply; finally, stop other auxiliary equipment such as the lift pump 26. During the stop process, the control module 5 checks the stop status of each device to ensure the safe stop of the equipment.

[0102] Equipment Maintenance: Regular maintenance of the equipment is the key to ensuring its normal operation and extending its service life. According to the alarm prompts on the upper computer display interface and the remaining maintenance time of the filter, replace the filter element of the filtration device in a timely manner. When replacing the filter element, first close the relevant valves to cut off the flow of the cutting fluid, then open the filter housing, remove the clogged filter element, and install a new one. Regularly clean the impurities in the sewage tank 11 and the sedimentation tank 25 to prevent excessive accumulation of impurities from affecting the performance of the equipment. When cleaning, open the sewage discharge valves of the sewage tank 11 and the sedimentation tank 25 to drain the sewage and impurities, and then rinse with clean water. View the historical alarm information and equipment operation data through the upper computer display interface, analyze the operation status of the equipment, promptly discover potential problems, and perform preventive maintenance. For example, according to the change trend of temperature and pressure data, replace the worn parts in advance to avoid equipment failures.

[0103] Although the present invention has been described in detail above with general descriptions and specific embodiments, based on the present invention, some modifications or improvements can be made, which are obvious to those skilled in the art. Therefore, these modifications or improvements made without departing from the spirit of the present invention all fall within the scope of protection required by the present invention.

Claims

1. A dual temperature control recyclable filtration integrated device, characterized in that: It comprises a refrigeration module (1), a circulation filtering and recovery module (2), a single cooling circulation module (3), an external expansion module (4), a control module (5) and a housing (6); The refrigeration module (1) is used to provide a cold source for the circulation filtering recovery module (2) and the single cold circulation module (3); The circulation filtration recovery module (2) is used to realize the circulation, temperature control and filtration of cutting fluid of more than one processing equipment; The single cooling circulation module (3) is used to realize the circulation, temperature control and filtration of cutting fluid of a single processing equipment; The external expansion module (4) is used to precipitate and elevate cutting fluid of processing equipment with a height increase requirement of more than one; The control module (5) is used to control the operation of the refrigeration module (1), the circulation filtering and recovery module (2), the single cooling circulation module (3), and the external expansion module (4); The housing (6) is used for fixedly assembling the refrigeration module (1), the circulation filtering and recovery module (2), the single cooling circulation module (3) and the control module (5).

2. The dual temperature control recyclable filtration integrated equipment according to claim 1, characterized in that: The refrigeration module (1) comprises an air cooling system (7) and a liquid cooling system (8); The air cooling system (7) comprises a cooling fan (9), the cooling fan (9) being fixed to the housing of the refrigeration module (1) via a bracket, the cooling fan (9) being electrically connected to the control module (5), and the start / stop and speed of the cooling fan (9) being controlled by the control module (5); The liquid cooling system (8) is provided with a cold source water supply interface and a cold source water return interface, and the cold source water supply interface and the cold source water return interface are respectively connected to the refrigeration access points of the circulation filtration recovery module (2) and the single cold circulation module (3) through metal hoses.

3. The dual temperature control recyclable filtration integrated equipment according to claim 1 is characterized in that: The circulating filtration recovery module (2) comprises a clean water tank (10), a sewage tank (11) and a filtering device; The clean water tank (10) and the sewage tank (11) are both provided with liquid level markings, a filtering device is provided between the clean water tank (10) and the sewage tank (11), the filtering device forms a double filtering circuit (12) with one for backup and the other for use, each filtering circuit of the double filtering circuit (12) comprises a filter and a pressure sensor connected to the inlet and outlet of the filter; a detachable filter element is installed in the filter; The liquid supply port of the clean water tank (10) is connected to a first water pump (13); the first water pump (13) is equipped with a first liquid supply pipeline (14) and a first liquid discharge pipeline (16); the clean water tank (10) is also connected to a liquid replenishment pipeline (15); A second water pump (17) is connected between the sewage tank (11) and the dual filtering circuit (12); the sewage tank (11) is provided with an overflow pipeline (18), a first liquid return pipeline (19) and a second liquid discharge pipeline (20).

4. The dual temperature control recyclable filtration integrated device according to claim 3 is characterized in that: When the pressure sensor at the inlet and outlet of the filter in any one of the working filter circuits in the dual filter circuits (12) detects that the pressure difference exceeds a preset threshold, the control module (5) issues an instruction to switch to another spare filter circuit through the electric three-way valve, and the control module (5) issues an alarm prompt to replace the filter element.

5. The dual temperature control recyclable filtration integrated equipment according to claim 1, characterized in that: The single cooling cycle module (3) comprises a second liquid supply pipeline (21) and a second liquid return pipeline (22); The second liquid supply pipeline (21) is provided with a circulation pump (23), a plate heat exchanger (24), a temperature sensor and a pressure sensor in sequence, the inlet of the circulation pump (23) is connected to the cold source outlet of the refrigeration module (1), the outlet of the circulation pump (23) is connected to the hot side inlet of the plate heat exchanger (24), and the hot side outlet of the plate heat exchanger (24) is connected to the use end of the processing equipment; One end of the second liquid return pipeline (22) is connected to the use end of the processing equipment, and the other end of the second liquid return pipeline (22) is connected to the cold source inlet of the refrigeration module (1) through the plate heat exchanger (24), forming a closed cycle.

6. The dual temperature control recyclable filtration integrated equipment according to claim 3, characterized in that: The external expansion module (4) comprises a sedimentation tank (25) and a lifting pump (26), wherein the sedimentation tank (25) is provided with a liquid return inlet and a liquid discharge outlet; The return liquid inlet is connected to the sewage tank (11) through a pipeline, the lifting pump (26) is connected to the pipeline of the return liquid inlet, and the lifting pump (26) is electrically connected to the control module (5). When the control module (5) receives a signal indicating that the liquid level detected by the liquid level sensor in the sedimentation tank (25) reaches a preset height, the lifting pump (26) is controlled to start and is used to lift liquid when the return liquid height is insufficient.

7. The dual temperature control recyclable filtration integrated device according to claim 6, characterized in that: The control module (5) has a built-in liquid level control system, and the liquid level control system is connected to the liquid level sensors of the clean water tank (10) and the sewage tank (11) in the circulation filtration recovery module (2) through a circuit; When the liquid level of the clean water tank (10) is lower than the lower limit liquid level, the liquid level control system controls the water replenishment solenoid valve of the clean water tank (10) to open for automatic water replenishment; When the liquid level in the sewage tank (11) is higher than the upper limit liquid level, the liquid level control system controls the sewage discharge solenoid valve of the sewage tank (11) to open and automatically discharge the liquid.

8. The dual temperature control recyclable filtration integrated device according to claim 7, characterized in that: The algorithm used by the control module (5) to achieve the balance of supply and return liquid is a PID adjustment algorithm based on fuzzy control, and the formula is: Where u(k) is the control quantity at the current moment, which is used to adjust the opening of the liquid supply pump or the liquid return valve; K p is the proportionality coefficient, T i is the integration time constant, T d is the differential time constant; e(k) is the deviation value between the liquid level difference between the clean water tank (10) and the sewage tank (11) at the current moment and the set liquid level difference; e(k-1) is the deviation value at the previous moment; T s is the sampling period; according to the liquid level data collected in real time by the liquid level sensor, the fuzzy subset of the input variable is determined through fuzzy processing, and the reasoning operation is performed according to the preset fuzzy rules. Then, the precise control quantity u(k) is obtained through defuzzification to adjust the liquid supply and return process and achieve the balance of liquid supply and return.

9. The dual temperature control recyclable filtration integrated device according to claim 1, characterized in that: The control module (5) selects an air cooling mode or a water cooling mode through a program. The control module (5) internally integrates a communication module. The communication module is compatible with Modbus and Profibus industrial bus protocols and is used to connect external devices to achieve function expansion. The control module (5) is also provided with an alarm management system. When a device fails, the alarm management system sends out an audible and visual alarm signal and stores the alarm information in an internal memory.

10. The dual temperature control recyclable filtration integrated equipment according to claim 1, characterized in that: It also includes a host computer display interface, the host computer display interface includes a main interface and a spindle interface, the main interface is used to display the running state of the cutting fluid circuit of the circulation filtering and recovery module (2) in real time, including the liquid supply flow, liquid supply pressure, temperature, liquid level, solenoid valve switch state and filter remaining maintenance time information; The spindle interface is used to display in real time the operating status of the spindle coolant circuit of the single cooling circulation module (3), including inlet and outlet temperatures, circulation flow rate and pump group operating status information.

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