Efficient Cooling and Filtering Cutting Oil Storage System

Abstract

The present invention relates to a cutting fluid storage device for a machine tool equipped with a cutting fluid cooling device, and is a system designed to effectively manage the temperature of the cutting fluid and efficiently remove foreign substances. The present invention includes technical improvements to resolve issues such as filter clogging, reduced cooling performance, and difficulties in maintenance that occur in existing cutting fluid storage devices. The cutting fluid storage device of the present invention is configured to gradually remove cutting chips and impurities by applying a multi-stage filtering system. Filters of various sizes are placed inside the cutting fluid storage tank so that large chips are removed by the first filter, and smaller particles are separated by the second and third filters. This minimizes filter clogging and enables continuous circulation of the cutting fluid. In addition, to improve cooling performance, the present invention is designed to install cooling pipes inside the storage tank and perform heat exchange using a refrigerant or air. A temperature detection unit detects the temperature of the cutting fluid in real time, and the cooling system operates automatically when necessary to maintain an optimal machining environment. As cooling performance is improved, the temperature of the cutting fluid can be maintained at a constant level, which increases the machining precision of the machine tool and extends tool life. To prevent cutting fluid loss, the present invention additionally applies a vaporization prevention device. By utilizing a vaporization prevention system installed inside the storage tank, the evaporation of the cutting fluid is minimized, and the maintenance cycle can be extended. This enhances the economic efficiency of the cutting fluid and allows for the expectation of long-term reductions in operating costs. This invention is applicable to various machine tools, such as CNC lathes, milling machines, drilling machines, and grinders, and is particularly effective in industrial environments requiring precision machining. Through this invention, the efficiency of cutting fluid management can be increased, maintenance can be simplified, and productivity can be enhanced. Due to these advantages, this invention provides a highly competitive technical solution that can be utilized in various industrial fields.

Description

Technology Field

[0001] This invention is a technology designed to improve the cooling function and maintainability of a cutting fluid storage device used in machine tools. Cutting fluid performs the roles of lubrication and cooling between the tool and the workpiece during machining, which is essential for increasing cutting efficiency and extending tool life. However, conventional cutting fluid storage devices have limited cooling performance, and problems such as filter clogging due to cutting chips and impurities frequently occur.

[0002] To address these issues, the present invention focuses on providing a continuous cooling effect while maintaining the quality of the cutting fluid by applying an efficient cooling and filtering system. In particular, it is designed to minimize filter clogging and maximize cooling performance by including a multi-stage filter system inside the reservoir. Furthermore, an automated control system has been introduced to detect the temperature of the cutting fluid in real time and improve the system to ensure optimal cooling and circulation.

[0003] This technology can be applied to various machine tools, such as CNC lathes, milling machines, drilling machines, and grinders, and is particularly effective in industries requiring precision machining. By stably maintaining the temperature of the cutting fluid, it prevents thermal deformation and contributes to improving machining precision. Furthermore, since it is designed with ease of maintenance in mind, it offers the advantages of reduced maintenance costs and increased operational efficiency compared to existing systems. Background Technology

[0004] In machine tools, cutting fluid plays an essential role in maximizing cutting efficiency, reducing friction between the tool and the workpiece, and regulating temperature. Used in various industries such as metalworking, plastics processing, and woodworking, cutting fluid plays a crucial role in extending tool life by effectively removing heat generated by high temperatures and friction.

[0005] Conventional cutting fluid storage systems operate by recovering used cutting fluid, purifying it, and reusing it. However, various problems arose with existing systems.

[0006] Filter clogging problem Cutting chips and other impurities contained in the cutting fluid clog the filter, hindering the smooth flow of the fluid, and there is a high possibility that cooling performance will be degraded due to filter clogging.

[0007] Reduced cooling efficiency As the high heat generated during the cutting process is transferred to the cutting fluid and its temperature rises, the cooling effect decreases, which can adversely affect machining quality and tool life.

[0008] Difficulty of maintenance The filter frequently clogs, requiring cleaning and replacement; as sediment accumulates inside the storage tank, the maintenance cycle shortens, and process interruptions become frequent.

[0009] Deterioration of cutting fluid quality As cutting chips, contaminants, and oxidized cutting fluid continuously accumulate in the storage tank, the performance of the cutting fluid decreases, which can lead to a decline in machining quality and contamination of the working environment.

[0010] To solve these problems, the present invention has developed a new concept of cutting fluid storage system that improves the filtering system of the cutting fluid storage device, maximizes cooling performance, and simplifies maintenance. The new system adopts a multi-stage filtering structure to gradually remove cutting chips and is designed to effectively lower the temperature of the cutting fluid by utilizing cooling pipes. In addition, by applying an automated temperature sensing and control system, it enables efficient management that maintains the optimal temperature of the cutting fluid and reduces unnecessary cooling energy.

[0011] Filter clogging problem Cutting chips clog the filter, hindering smooth circulation.

[0012] Reduced cooling efficiencyAs the cutting fluid temperature rises, the cooling effect decreases, affecting machining precision.

[0013] Difficulty of maintenance The filter and storage tank must be cleaned frequently, and maintenance is time-consuming. The problem to be solved

[0014] The present invention aims to solve various problems occurring in existing cutting fluid storage devices and to provide a more efficient and easy-to-maintain cutting fluid storage system. Current cutting fluid storage systems have limitations in cooling performance, and problems such as difficult maintenance due to frequent filter clogging and prolonged downtime occur. Therefore, the present invention aims to solve these problems and ensure continuous cutting fluid quality maintenance and process stability.

[0015] The main problem to be solved by the present invention is as follows.

[0016] Prevention of filter clogging and improvement of maintenance efficiency :

[0017] Cutting fluid contains cutting chips and impurities generated during the machining process, which causes the filter to clog easily.

[0018] Existing filter systems require periodic cleaning, and maintenance is cumbersome and time-consuming.

[0019] In this invention, a multi-stage filtering system is applied to effectively remove chips and foreign substances, thereby reducing filter clogging and extending the maintenance cycle.

[0020] 2. Improvement in cutting fluid cooling performance :

[0021] As the temperature of the cutting fluid rises, the cooling effect decreases, affecting machining quality and increasing the rate of tool wear.

[0022] Conventional cutting fluid cooling methods have low efficiency and slow cooling speeds, which can lead to reduced work efficiency.

[0023] In this invention, a cooling pipe is placed inside the storage tank, and a heat exchange system using air or a refrigerant is applied to enable more effective cooling of the cutting fluid.

[0024] 3. Minimizing process interruptions and ensuring business continuity :

[0025] In existing systems, equipment often stops operating due to filter clogging or reduced cooling performance during the cutting fluid filtering and cooling processes.

[0026] Such process interruptions lead to reduced productivity and have a negative impact on work schedules.

[0027] The system of the present invention includes an automated temperature sensing and cooling control system to continuously maintain the quality and temperature of the cutting fluid.

[0028] 4. Minimizing cutting fluid loss and reducing costs :

[0029] If cutting fluid evaporates or leaks, raw material costs increase, and it can also have adverse environmental effects.

[0030] The present invention is designed to include a vaporization prevention device to prevent the evaporation of cutting fluid and minimize cutting fluid loss.

[0031] This enabled not only reduced maintenance costs but also environmentally friendly operation.

[0032] 5. Designed for application to various machine tools :

[0033] Existing coolant storage systems are often designed to be applied only to specific machine tools, making it difficult to apply them to other machines.

[0034] The present invention applies a general-purpose design so that it can be used in various machine tools such as CNC lathes, milling machines, grinders, and drilling machines.

[0035] This scalability has enabled it to be utilized in various industrial fields.

[0036] Prevents filter clogging to maintain smooth circulation of cutting fluid

[0037] Maintains machining precision by improving cutting fluid cooling performance

[0038] Minimize downtime by simplifying maintenance means of solving the problem

[0039] In this invention, various technical improvements have been introduced to enhance the filtering and cooling functions of the cutting fluid storage device. It is designed to resolve problems occurring in existing cutting fluid storage systems and to enable more efficient cutting fluid circulation and maintenance.

[0040] The solution means of the present invention consists of the following elements.

[0041] Application of a multi-stage filter system :

[0042] Unlike the existing single filter method, the present invention applies a multi-stage filter system classified by size.

[0043] It is designed so that large cutting chips are removed in the first filter, and then fine chips and impurities are sequentially filtered in the second and third filters.

[0044] It has been improved to minimize filter clogging and extend the filter maintenance cycle.

[0045] Introduction of an efficient cooling system :

[0046] Multiple cooling pipes were arranged inside the storage tank to allow the cutting fluid to come into direct contact with the cooling pipes.

[0047] It is designed with a heat exchange method utilizing air or refrigerant to rapidly lower the temperature of the cutting fluid.

[0048] Since cooling takes place inside the storage tank, a constant temperature can be maintained without an additional cooling device.

[0049] Automated temperature sensing and control system :

[0050] A temperature sensor is built in to detect the temperature inside the cutting fluid reservoir in real time.

[0051] If the cutting fluid temperature exceeds a set threshold, the cooling system is automatically activated to perform cooling.

[0052] If the cutting fluid drops to a very low temperature, the cooling system automatically stops to prevent overcooling.

[0053] Application of vaporization prevention system :

[0054] To prevent the evaporation of cutting fluid, a vapor-prevention cover and a barrier were added.

[0055] In particular, it is designed to reduce cutting fluid loss and lower maintenance costs in high-temperature environments.

[0056] The anti-vaporization function works in conjunction with the cooling system to optimize the temperature and evaporation rate of the cutting fluid.

[0057] Maintaining process continuity and improving maintenance efficiency :

[0058] In the existing system, there was a problem where the equipment frequently stopped due to filter clogging or reduced cooling performance.

[0059] The system of the present invention enables continuous cutting fluid circulation and temperature control, thereby minimizing equipment downtime.

[0060] The structure was simplified to facilitate filter replacement and cooling unit inspection during maintenance.

[0061] Through these improvements, the present invention enables the long-term maintenance of cutting fluid quality, facilitates smooth cutting fluid circulation, and maximizes cutting fluid cooling performance to improve process efficiency.

[0062] Multistage filter system Clogging is prevented by using multiple filters of different sizes to separate cutting chips in stages.

[0063] Efficient cooling systemIt is designed so that the cutting fluid is directly cooled by placing cooling pipes inside the storage tank, and heat exchange is performed using air or a refrigerant.

[0064] Automated control system It detects the cutting fluid temperature in real time and automatically adjusts the cooling and circulation systems to maintain optimal conditions.

[0065] Anti-vaporization device It prevents cutting fluid from evaporating, minimizing fluid loss and reducing maintenance frequency. Effects of the invention

[0066] By applying the present invention, the limitations of existing cutting fluid storage devices can be overcome, and the productivity and maintenance efficiency of machine tools can be maximized. The main effects provided by the present invention are as follows.

[0067] Prevention of filter clogging and improvement of cutting fluid circulation

[0068] In existing systems, cutting chips clogged the filter, hindering smooth circulation; however, in this invention, a multi-stage filtering system was applied to minimize filter clogging.

[0069] By separating chips by size and removing them step by step, the cutting fluid was made to circulate continuously and smoothly.

[0070] This reduces downtime and enables continuous processing.

[0071] Maximizing cutting fluid cooling performance

[0072] It is designed with cooling pipes installed inside the storage tank to allow the cutting fluid to be cooled directly, and cooling efficiency has been significantly improved compared to conventional methods.

[0073] By applying a heat exchange method using air or a refrigerant to maintain a constant cutting fluid temperature, thermal deformation during the machining process can be prevented.

[0074] By maintaining a constant temperature of the cutting fluid, the rate of tool wear is reduced, and the machining quality of the workpiece is improved.

[0075] Increased maintenance efficiency and cost reduction

[0076] As filter clogging is reduced, the filter cleaning and replacement cycle is extended, and maintenance costs are lowered.

[0077] It is designed to facilitate the removal of sediment inside the cutting fluid reservoir, allowing operators to easily perform maintenance.

[0078] Through an automated control system, cooling and filtering conditions can be optimized, and unnecessary energy waste can be reduced.

[0079] Minimizing cutting fluid loss and environmentally friendly design

[0080] By applying a vaporization prevention device, the evaporation of cutting fluid is reduced, and the effect of saving raw materials is maximized.

[0081] As cutting fluid loss is reduced, operating costs are lowered and environmental impact can be minimized.

[0082] The present invention supports eco-friendly operation and enables a sustainable manufacturing process by reducing cutting fluid waste.

[0083] Improved business continuity and increased productivity

[0084] In existing systems, operations were frequently interrupted due to filter clogging or reduced cooling performance, but the present invention solves these problems to maintain the continuity of operations.

[0085] Reduced maintenance burden allows workers to focus on more critical production processes, and improved productivity can be expected.

[0086] As the quality of the cutting fluid is maintained and machining precision is improved, it is possible to produce high-quality products.

[0087] Through these effects, the present invention can maximize the efficiency of the cutting fluid storage and cooling management system and provide various benefits such as reduced maintenance costs, improved machining precision, and eco-friendly operation. Brief explanation of the drawing

[0088] Fig. 1: A drawing illustrating the problems of a conventional cutting fluid storage device, schematically depicting the issues arising from filter clogging and reduced cooling efficiency in the existing system. Fig. 2: A drawing showing the schematic configuration of the cutting fluid storage device of the present invention, showing the overall arrangement of the cutting fluid storage tank, multi-stage filter system, cooling system, anti-vaporization device, and control system. Fig. 3: A plan view of the cutting fluid storage tank of the present invention, showing the flow of cutting fluid, filter placement, and cooling pipe locations, and explaining the process of effectively removing cutting chips and impurities. Fig. 4: A drawing showing the side view of the cutting fluid storage device of the present invention, visually illustrating how the cutting fluid circulates inside the storage tank and how the cooling pipes and filters are arranged. Fig. 5: A drawing showing the cross-sectional view of the cutting fluid storage device of the present invention, detailing the structure of the multi-stage filtering system and cooling pipes, and showing the sequential cooling and filtering processes. Fig. 6: A drawing showing the schematic diagram of the multi-stage filtering system, explaining the roles and locations of the primary, secondary, and tertiary filters, and providing concepts regarding the cutting chip removal process by size and filter maintenance methods. 7: A drawing of a cutting fluid cooling system through a cooling tube, showing the path of refrigerant or air moving inside the cooling tube and demonstrating how the heat exchange process between the cutting fluid and the cooling tube takes place. Specific details for implementing the invention

[0089] The cutting fluid storage device of the present invention is an innovative system that provides efficient cooling and filtering functions and is designed to be utilized in various machine tools. This device maximizes machining efficiency through the smooth circulation of cutting fluid and the maintenance of an optimal temperature, and enables cost reduction by simplifying maintenance. Embodiments of the present invention are as follows.

[0090] 1. Cutting fluid storage and filtering process

[0091] Cutting fluid inflow The cutting fluid used in the cutting process flows into the storage tank. During this process, large chips and impurities may be included.

[0092] 1st filtering A chip fan and a primary filter are placed at the inlet of the storage tank to remove large cutting chips first.

[0093] Multi-stage filtering system The cutting fluid that has passed through the first filter goes through second and third filters to remove fine chips and impurities. Each filter is responsible for progressively removing particles according to size.

[0094] Refined cutting fluid storage The filtered cutting fluid is stored inside the reservoir and is ready to be supplied back to the processing equipment.

[0095] 2. How the Cooling System Works

[0096] Temperature sensing A temperature sensor installed inside the storage tank continuously detects the temperature of the cutting fluid.

[0097] Heat exchange through cooling pipes When the cutting fluid exceeds a certain temperature, the refrigerant or air flowing inside the cooling pipe serves to lower the temperature of the cutting fluid.

[0098] Automatic control system The cooling fan and cooling unit operate to maintain the cutting fluid at an appropriate temperature, and automatically stop when necessary to prevent unnecessary energy waste.

[0099] Operation of vaporization prevention system A vaporization prevention device is installed inside the storage tank to prevent the cutting fluid from evaporating and maintain its quality for a long period.

[0100] 3. Coolant Circulation and Reuse Process

[0101] Circulation pump operation The cutting fluid inside the storage tank is supplied back to the processing equipment through a circulation pump.

[0102] Use in processing equipmentThe cutting fluid reused in the machine tool is discharged along with the cutting chips and flows back into the storage tank, repeating the filtering and cooling processes described above.

[0103] Flow rate and chip volume monitoring It is equipped with a flow rate indicator and a chip level indicator, allowing the operator to easily check the status of the cutting fluid and perform maintenance when necessary.

[0104] 4. Maintenance and Management

[0105] Filter cleaning and replacement Although filter clogging has been minimized through a multi-stage filtering system, filters must be inspected and replaced at regular intervals.

[0106] Cooling system maintenance : Clean the inside of the cooling fan and cooling tubes to ensure that cooling performance is continuously maintained.

[0107] Coolant Replacement Cycle Management Periodic inspection and replacement are required to prevent the quality of the cutting fluid from deteriorating, and the inside of the storage tank must be cleaned to prevent the accumulation of sediment.

[0108] In this manner, the cutting fluid storage device of the present invention is designed to maintain the stability of processing equipment by continuously circulating and cooling the cutting fluid and optimizing the filtering process. This offers the advantages of reducing downtime, decreasing cutting fluid consumption, and extending the lifespan of the equipment.

[0109] As the cutting fluid flows into the storage tank, it passes through a chip fan and a multi-stage filter to remove cutting chips.

[0110] The filtered cutting fluid comes into contact with the cooling pipe inside the storage tank and is cooled.

[0111] The cooled cutting fluid is maintained at a constant temperature and supplied back to the processing equipment.

[0112] The temperature detection unit and the control unit detect the cutting fluid temperature in real time and activate the cooling system when necessary.

[0113] When maintenance is required, the operator can check the status of the filter and cutting fluid through the chip amount display and flow rate display. Explanation of the symbols

[0114] 10: Coolant storage device 11: Cutting fluid cooling system 12: Cutting fluid reservoir 13: Filter 14: Pump 15: Cooling tube 16: Suction part 17: Discharge section 18: Fan 19: Temperature detection unit 20: Control unit 21: Anti-vaporization device 22: Chip Fan 23: Flow rate display 24: Chip quantity indicator

Claims

Claim 1 In a cutting fluid storage device of a machine tool equipped with a cutting fluid cooling device, the present invention is a device designed to maintain the quality of the cutting fluid for a long period by optimizing the continuous cooling and filtering of the cutting fluid, and comprises the following components. cutting fluid storage tank : A space for storing cutting fluid, optimized for efficient internal cooling and filtering. A multi-stage filtering system is applied to gradually remove cutting chips and impurities. An anti-vaporization system is included to prevent cutting fluid evaporation and extend maintenance cycles. Multistage filter system Primary Filter: Removes large cutting chips. Secondary Filter: Filters medium-sized chips and suspended solids. Tertiary Filter: Removes fine particles of foreign matter to allow clean cutting fluid to be reused. cooling system Cooling pipes are positioned inside the reservoir to perform heat exchange through direct contact with the cutting fluid. Air or refrigerant circulates through the pipes to maintain a constant temperature of the cutting fluid. The cooling system is linked with a temperature sensing control unit that detects the cutting fluid temperature in real time and operates automatically when necessary. Temperature sensing and control system Includes a temperature sensor that measures the temperature inside the cutting fluid reservoir in real time. The cooling system automatically activates when the set reference temperature is exceeded. When the cutting fluid temperature reaches the optimal state, the cooling system automatically shuts off to reduce energy consumption. Coolant circulation and maintenance functions : The stored cutting fluid is continuously supplied to the machine tool through a circulation pump. It is designed to easily check the maintenance timing by including a cutting fluid flow rate and chip amount monitoring system. The structure is optimized to facilitate filter replacement and cleaning of the storage tank. Through this, the cutting fluid storage device of the present invention provides effects such as maintaining the temperature of the cutting fluid, improving filtering performance, facilitating maintenance, and minimizing cutting fluid loss, and is designed to contribute to improving the machining precision of the machine tool and extending the tool life. A cutting fluid storage device for a machine tool is characterized by comprising: a cutting fluid storage tank for storing cutting fluid; a plurality of filters for separating foreign substances from the cutting fluid; a cooling pipe embedded in the cutting fluid storage tank through which a refrigerant moves; a suction part installed at one end of the cooling pipe to draw the refrigerant into the cooling pipe; a discharge part installed at the other end of the cooling pipe to discharge the refrigerant drawn into the cooling pipe; a temperature detection part for sensing the temperature of the cutting fluid; and a control part for controlling the suction part and the discharge part. Claim 2 A cutting fluid storage device for a machine tool according to claim 1, characterized in that the cutting fluid storage tank is equipped with a vaporization prevention device to prevent the evaporation of cutting fluid. Claim 3 A cutting fluid storage device for a machine tool according to claim 1, wherein the cutting fluid storage tank further comprises a flow rate indicator for indicating the amount of cutting fluid and a chip amount indicator for indicating the amount of cutting chips.

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