A waste liquid circulating device for a numerical control lathe

Abstract

The utility model relates to circulating device field especially relates to a numerical control lathe swarf liquid circulating device, including the recycling box and the circulating component, the inside installation of recycling box is used for the recycling recycling use of fully processing swarf liquid circulating component, and the circulating component includes the composite filter screen, storage bin, liquid outlet pipe, docking disc, filter ring, solenoid valve, connecting plate, recycling disc, charging frame, and the inside of recycling box is provided with recycling groove, and the inside symmetry of recycling groove is equipped with the composite filter screen, and the outer end corner of composite filter screen is equipped with the limiting bolt, and the composite filter screen is fixed with recycling box thread through limiting bolt, and the inside of recycling box is located composite filter screen one side and is provided with storage bin, and the inner wall symmetry of recycling groove is provided with multiple groups of guide grooves, the utility model discloses through adopting the composite filter screen to the multistage full filtration separation of swarf liquid, effectively screens out the swarf in cutting fluid, reduces the residual of metal scrap in recycling cutting fluid, guarantees the cleanness of recycling cutting fluid, improves the filtration effect.

Description

Technical Field

[0001] This utility model relates to the field of circulation devices, and in particular to a waste chip and liquid circulation device for CNC lathes. Background Technology

[0002] CNC lathes are automated machine tools that utilize digital coding and program control. They achieve automated machining through a program control system, which logically processes programs with control codes or other symbolic instructions, decodes them, represents them with coded numbers, and inputs them into the CNC device via an information carrier, thereby controlling the lathe's movements. Waste cutting fluid is a liquid waste generated during metal cutting on a lathe, consisting of cooling lubricant, metal chips, grease, and water. Waste cutting fluid treatment requires a waste cutting fluid circulation device to process the waste chips and cutting fluid, quickly discharging the metal chips generated during the cutting process from the machining area. The device then recycles, filters, and reuses the waste cutting fluid, reducing costs and environmental pollution.

[0003] Existing recycling systems typically use collection boxes to filter and collect waste cutting fluid during operation. However, since the waste cutting fluid produced by lathe machining varies, it is difficult to filter it using a uniform filter screen. This may not be able to effectively filter all types of waste cutting fluid, resulting in the presence of metal fragments in the recycled cutting fluid. This affects the cleanliness of the recycled cutting fluid and reduces its effectiveness for reuse.

[0004] Therefore, existing recycling devices typically use collection boxes to collect and filter waste cutting fluid. However, since the waste cutting fluid generated by lathe machining varies, using a uniform filter is difficult to achieve, potentially failing to effectively filter all types of waste cutting fluid. This results in residual metal fragments in the recycled cutting fluid, affecting its cleanliness and reducing its reuse efficiency. A CNC lathe waste cutting fluid recycling device can be designed. Through multi-stage filtration and separation, waste cutting fluid can be effectively removed, reducing residual metal fragments and ensuring the cleanliness of the recycled cutting fluid. This improves filtration efficiency, and the recycling and reuse of cutting fluid can reduce production costs and environmental pollution for enterprises. Utility Model Content

[0005] To overcome the limitations of existing recycling systems, a collection box is typically used to collect and filter waste cutting fluid. However, since the waste cutting fluid produced by lathe machining varies, it is difficult to filter it using a uniform filter screen. This may not be able to effectively filter all types of waste cutting fluid, resulting in the presence of metal fragments in the recycled cutting fluid. This affects the cleanliness of the recycled cutting fluid and reduces the effectiveness of recycling and reuse.

[0006] The technical solution of this utility model is as follows: a CNC lathe waste liquid recycling device, including a recycling tank and a recycling component; the recycling tank is equipped with a recycling component for fully treating the waste liquid for recycling and reuse. The recycling component includes a composite filter, a storage chamber, a liquid outlet pipe, a docking plate, a filter ring, a solenoid valve, a connecting plate, a recycling tray, and a feeding rack. The recycling tank has a recycling trough inside, and the composite filter is symmetrically arranged inside the recycling trough. A limiting bolt is provided at the outer corner of the composite filter. The composite filter is threadedly fixed to the recycling tank by the limiting bolt. A storage chamber is provided on one side of the composite filter inside the recycling tank. Multiple sets of guide grooves are symmetrically arranged on the inner wall of the recycling trough.

[0007] Preferably, by employing a composite filter screen for multi-stage filtration and separation of waste cutting fluid, waste cutting fluid is effectively removed, reducing the residue of metal fragments in the recovered cutting fluid, ensuring the cleanliness of the recovered cutting fluid, and improving the filtration effect. Simultaneously, the recovery and recycling of cutting fluid can reduce production costs and environmental pollution. Depending on the waste cutting fluid treatment requirements, the composite filter screen can be disassembled and replaced with different pore sizes to effectively separate waste cutting fluid of different particle sizes, adapting to the filtration needs of different sized waste cutting fluids. A guide trough is used to assist in guiding the waste cutting fluid to a designated recycling area, reducing disorderly flow. Secondly, a filter ring is installed inside the discharge pipe for secondary filtration, effectively removing finer impurities, improving the filtration accuracy of the waste cutting fluid, ensuring that the recycled cutting fluid meets process requirements, reducing the need for adding new cutting fluid, improving resource utilization, and reducing waste.

[0008] Preferably, the outer end of the recycling bin is fixedly provided with two sets of liquid outlet pipes, which are connected to the recycling bin. One end of the liquid outlet pipe is fixedly provided with a docking plate, and the inside of the docking plate is provided with a filter ring.

[0009] Preferably, a connecting plate is provided on the outside of the connecting plate, and a transmission pipe is welded inside the connecting plate, with an electromagnetic valve fixed at the outer end of the transmission pipe.

[0010] As a preferred embodiment, the connecting plate has multiple sets of pins inside, and both the filter ring and the connecting plate have holes for accommodating the pins inside. The connecting plate is positioned and fitted with the filter ring and the connecting plate by multiple sets of pins.

[0011] Preferably, the recycling bin is equipped with feeding racks at both ends, one end of which is connected to the storage bin, and the upper end of the feeding rack is fitted with a cover plate.

[0012] Preferably, the recycling tank has a recycling tray inside, and a movable groove for accommodating the recycling tray is opened inside the recycling tank. The recycling tray has multiple sets of leakage holes inside. A connecting plate is welded to one end of the recycling tray, and two sets of screws are provided on the outer end of the connecting plate. The connecting plate is threadedly fixed to the recycling box by the two sets of screws.

[0013] Preferably, a positioning post is welded at the upper corner of the recycling bin, and multiple sets of docking slots are opened at the upper end of the recycling bin.

[0014] The beneficial effects of this utility model are:

[0015] 1. Compared to traditional circulation devices, this system utilizes a composite filter screen for multi-stage filtration and separation of waste cutting fluid. This effectively removes waste cutting fluid, reduces residual metal debris in the recovered cutting fluid, ensures the cleanliness of the recovered cutting fluid, and improves filtration efficiency. Simultaneously, the recovery and recycling of cutting fluid reduces production costs and environmental pollution. Depending on the waste cutting fluid treatment requirements, the composite filter screen can be disassembled and replaced with different pore sizes to effectively separate waste cutting fluid of varying particle sizes, adapting to the filtration needs of different sized waste cutting fluids. A guide trough assists in guiding the waste cutting fluid to the designated recycling area, reducing disordered flow. Furthermore, a movable filter ring is installed inside the discharge pipe for secondary filtration, effectively removing finer impurities, improving the filtration accuracy of the waste cutting fluid, ensuring that the recycled cutting fluid meets process requirements, reducing the need for adding new cutting fluid, increasing resource utilization, and minimizing waste. Attached Figure Description

[0016] Figure 1 The diagram shown is a schematic representation of the overall structure of a waste chip and liquid recycling device for a CNC lathe according to this utility model.

[0017] Figure 2 The diagram shown is a schematic diagram of the filter ring structure of a waste chip and liquid circulation device for CNC lathes according to this utility model.

[0018] Figure 3 The diagram shown is a schematic representation of the storage bin structure of a waste chip and liquid recycling device for CNC lathes according to this utility model.

[0019] Figure 4 The diagram shown is a schematic diagram of the structure of the recycling tray of a CNC lathe waste liquid recycling device according to this utility model.

[0020] Explanation of reference numerals in the attached drawings: 1. Recycling bin; 201. Composite filter screen; 202. Limiting bolt; 203. Guide groove; 204. Storage bin; 205. Discharge pipe; 206. Connecting plate; 207. Filter ring; 208. Transfer pipe; 209. Pin; 210. Solenoid valve; 211. Connecting plate; 212. Recycling tray; 213. Screw; 214. Feeding rack; 215. Cover plate; 216. Positioning post. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] A CNC lathe is a machining equipment that uses computer software to control the final process. It consists of three main parts: the machine tool body, the CNC system, and peripheral technologies. The machine tool body includes basic components such as the bed, column, guide rails, and worktable, as well as auxiliary components such as the tool post and tool magazine. CNC lathes are manufactured with high precision and automatically process according to a predetermined program, avoiding human error and ensuring good consistency of parts in the same batch, thus improving dimensional accuracy. CNC lathes can machine multiple parts of a part in a single setup, eliminating many intermediate processes. Generally, only first-piece inspection is required, significantly shortening production preparation time. Except for blank machining and clamping, almost all machining operations can be completed automatically by the machine tool, reducing the operator's workload and improving working conditions. CNC machining generally does not require complex process equipment; when the workpiece changes, only the CNC program needs to be modified, saving production preparation time. CNC lathes are mechatronic products integrating mechanical, electrical, hydraulic, pneumatic, microelectronic, and information technologies. CNC lathes are widely used in all areas of machining, and are especially suitable for processing small batches of complex-shaped parts requiring high precision. CNC lathes can automatically process any product or component directly according to pre-programmed instructions, making operation much simpler. CNC lathes are developing towards higher speeds and more multifunctionality; future CNC lathes will be even more multifunctional, meeting the machining needs of different workpieces. Due to their high precision, high efficiency, high automation, and high flexibility, CNC lathes play a very important role in modern manufacturing.

[0023] During CNC lathe machining, metal workpieces are subjected to cutting, drilling, grinding, and other operations, generating a large amount of metal waste. This waste may be in the form of rolls, clumps, blocks, or granules, and may be made of non-magnetic materials such as steel, cast iron, aluminum, and brass. Secondly, cutting fluid is needed during the production process to cool and lubricate the cutting tools and workpieces during metal cutting and grinding. It is a scientifically formulated blend of various high-performance additives, possessing excellent cooling, lubrication, and rust-preventing properties. During machining, the cutting fluid mixes with the metal waste, forming a waste fluid mixture. This mixture is particularly difficult to separate and handle. Prolonged immersion of the waste fluid in the cutting fluid may lead to chemical reactions, affecting the recycling and reuse of the cutting fluid. Furthermore, the waste fluid spilled around the CNC lathe not only affects the surrounding environment but may also cause skin irritation to the operator. Therefore, the waste fluid mixture needs effective recycling and treatment. Failure to do so not only pollutes the environment but also increases the cost of using cutting fluid. Waste materials can be classified according to their composition, such as plain carbon steel, chromium-containing steel, and nickel-containing steel, and need to be processed through effective recycling equipment to reduce environmental impact and lower production costs.

[0024] For waste chips and cutting fluid in CNC lathes, a circulation system is needed to collect these waste chips and cutting fluid to prevent them from scattering in the working environment and causing pollution and safety hazards. The collected waste chip and fluid mixture needs to be filtered and separated. The filtered cutting fluid can be recycled and reused, while the waste chips are centrally processed. The filtered and purified cutting fluid can be returned to the machine tool or centrally stored for subsequent machining processes, thus saving resources and reducing waste. The use of waste chip and fluid circulation systems reduces the need for manual cleaning of waste chips, improves work efficiency and production efficiency, and maintains a clean working environment by centrally processing waste chips and cutting fluid. This improves working conditions, enhances workplace safety, reduces the consumption of new materials and the cost of waste chip disposal, lowers production costs, improves resource utilization, reduces environmental pollution, saves costs, and improves the working environment.

[0025] Although there are many CNC lathe waste fluid recycling devices on the market, they still face some problems and challenges in practical applications. Existing recycling devices usually use collection boxes to filter and collect the waste fluid generated during lathe machining. Due to the different machining methods and precision of lathes for different workpieces, the size of the waste fluid generated during machining varies. Using a uniform filter screen installed in the collection box is difficult to perform preliminary and sufficient separation and filtration, and it is difficult to effectively adapt to the filtration requirements of different waste fluids. This results in the presence of metal shavings in the recovered cutting fluid, affecting the cleanliness of the recovered cutting fluid and reducing the effective use of the secondary recycling of cutting fluid.

[0026] Please see Figures 1-4 This utility model provides an embodiment: a CNC lathe waste liquid recycling device, including a recycling tank 1 and a recycling component; the recycling tank 1 is equipped with a recycling component for fully treating the waste liquid for recycling and reuse. The recycling component includes a composite filter 201, a storage chamber 204, a liquid outlet pipe 205, a docking plate 206, a filter ring 207, a solenoid valve 210, a connecting plate 211, a recycling tray 212, and a feeding rack 214. The recycling tank 1 has a recycling trough inside, and the composite filter 201 is symmetrically arranged inside the recycling trough. A limiting bolt 202 is provided at the outer corner of the composite filter 201. The composite filter 201 is threadedly fixed to the recycling tank 1 by the limiting bolt 202. The storage chamber 204 is provided on one side of the composite filter 201 inside the recycling tank 1. Multiple sets of guide grooves 203 are symmetrically arranged on the inner wall of the recycling trough.

[0027] Please see Figures 1-3In this embodiment, two sets of liquid outlet pipes 205 are fixedly provided at the outer end of the recycling tank 1. The liquid outlet pipes 205 are connected to the recycling tank 1. A docking plate 206 is fixedly provided at one end of the liquid outlet pipe 205. A filter ring 207 is provided inside the docking plate 206. By installing the filter ring 207 inside the discharge pipe for secondary filtration, finer impurities are effectively removed, the filtration accuracy of the waste is improved, and the circulating cutting fluid meets the process requirements. This reduces the need for adding new cutting fluid, improves resource utilization, and reduces waste. A connecting plate is provided on the outer side of the docking plate 206. A transmission pipe 208 is welded inside the connecting plate. An electromagnetic valve 210 is fixedly provided at the outer end of the transmission pipe 208. The electromagnetic valve 210 is used to control the discharge of the filtered liquid for reuse, realizing automatic control, reducing manual operation, accurately controlling the discharge volume of the filtered liquid, ensuring the dilution ratio of the cutting fluid, realizing quantitative dilution and automatic addition, and avoiding errors caused by manual addition.

[0028] Please see Figures 2-3 In this embodiment, the connecting plate is provided with multiple sets of pins 209 inside. The filter ring 207 and the docking plate 206 are both provided with holes to accommodate the pins 209. The connecting plate is positioned in contact with the filter ring 207 and the docking plate 206 by the multiple sets of pins 209. The connecting plate is disassembled and assembled by using the pins 209, and the filter ring 207 is replaced after a period of use to avoid clogging or wear after long-term use, which would reduce the filtration effect and ensure the filtration quality of the waste liquid, thereby improving the recycling quality. The recycling box 1 is fixedly provided with feeding racks 214 at both ends. One end of the feeding rack 214 is connected to the storage chamber 204. The upper end of the feeding rack 214 is fastened with a cover plate 215. By using the feeding rack 214, the required liquid is added during the recovery of cutting fluid, which helps to mix the cutting fluid evenly, making the cutting fluid ratio accurate, ensuring better quality of the processed cutting fluid, and improving the overall recycling effect.

[0029] Please see Figures 2-4 In this embodiment, a recycling tray 212 is provided inside the recycling tank, and a movable groove for accommodating the recycling tray 212 is opened inside the recycling tank. Multiple sets of drainage holes are opened inside the recycling tray 212. A connecting plate 211 is welded to one end of the recycling tray 212, and two sets of screws 213 are provided at the outer end of the connecting plate 211. The connecting plate 211 is threadedly fixed to the recycling box 1 by the two sets of screws 213. After the waste is collected by the recycling tray 212, it is periodically slid out to clean up the waste in time, avoid the accumulation of waste in the collection area, keep the working environment clean, and facilitate subsequent processing by the lathe. A positioning post 216 is welded to the upper corner of the recycling box 1, and multiple sets of docking grooves are opened at the upper end of the recycling box 1. By using the positioning post 216 in combination with the docking grooves to assist the recycling box 1 in docking and fixing with the lathe, the connection stability between the recycling box 1 and the lathe is enhanced, the connection loosening caused by vibration during processing is reduced, and the stability of the waste liquid recycling process is ensured.

[0030] During operation, firstly, based on the waste liquid treatment requirements, tools are used to disassemble and replace the limiting bolt 202 with composite filter screens 201 of different aperture specifications. This effectively separates waste liquid of different particle sizes for subsequent processing, adapting to the filtration needs of waste liquid of different sizes. After the composite filter screen 201 is disassembled and replaced, the connecting plate is removed using pin 209, and the filter ring 207 is installed inside the connecting plate. The pin 209 is then inserted into the connecting plate 206 for docking and fixing. Next, the recovery plate 212 is inserted into the moving groove, and two sets of screws 213 are used to thread the connecting plate 211 to the recovery box 1 to ensure that the recovery plate 212 is not easily shaken or detached. After all the parts of the recovery box 1 are installed, the positioning pin 216 is used in conjunction with the docking groove to assist in docking and fixing the recovery box 1 with the lathe, enhancing the connection stability between the recovery box 1 and the lathe and reducing loosening of the connection due to vibration during processing. During the operation of the lathe, the waste liquid falls into the recovery tank and is first filtered and separated through multiple stages by the composite filter screen 201. This system effectively removes waste chips from the cutting fluid, reducing the residue of metal debris in the recycled cutting fluid. During the recycling process, the guide trough 203 helps guide the waste fluid to the designated recycling area, reducing disorderly flow. When the waste fluid needs to be recycled later, the solenoid valve 210 controls the discharge of the filtered liquid, achieving automatic control and precise control of the discharge of the filtered liquid. The filter ring 207, which is installed inside the discharge pipe, can perform secondary filtration to effectively remove finer impurities, ensuring that the recycled cutting fluid meets process requirements and reducing the need for adding new cutting fluid. When the cutting fluid is stored in the storage tank 204, the cover plate 215 is opened to add the required liquid to the feeding rack 214, ensuring accurate cutting fluid ratio and better quality of the processed cutting fluid. After long-term collection of waste chips, the recycling tray 212 is disassembled and periodically slid out to clean up the waste chips in a timely manner, preventing them from accumulating in the collection area, keeping the working environment clean, and facilitating continuous machining on the lathe.

[0031] Through the above steps, the composite filter 201 is used for multi-stage filtration and separation of the waste cutting fluid, effectively removing waste cutting fluid, reducing the residue of metal fragments in the recovered cutting fluid, ensuring the cleanliness of the recovered cutting fluid, and improving the filtration effect. At the same time, the recovery and recycling of cutting fluid can reduce the production cost of enterprises and reduce environmental pollution. According to the treatment requirements of the waste cutting fluid, the composite filter 201 can be disassembled and replaced with different pore sizes to effectively separate waste cutting fluid of different particle sizes, adapting to the filtration requirements of waste cutting fluid of different sizes. The guide channel 203 is used to guide the waste cutting fluid to the designated recycling area, reducing the disorderly flow of waste cutting fluid. Secondly, the filter ring 207 is installed inside the discharge pipe for secondary filtration, effectively removing finer impurities, improving the filtration accuracy of the waste cutting fluid, ensuring that the recycled cutting fluid meets the process requirements, reducing the addition of new cutting fluid, improving resource utilization, and reducing waste.

Claims

1. A waste chip and liquid recycling device for CNC lathes, comprising a recycling tank (1); characterized in that: It also includes a circulation component; the inside of the recycling box (1) is equipped with a circulation component for fully treating waste liquid for recycling and reuse. The circulation component includes a composite filter (201), a storage chamber (204), an outlet pipe (205), a docking plate (206), a filter ring (207), a solenoid valve (210), a connecting plate (211), a recycling tray (212), and a feeding rack (214). The inside of the recycling box (1) is provided with a recycling tank. The inside of the recycling tank is symmetrically provided with a composite filter (201). A limiting bolt (202) is provided at the outer corner of the composite filter (201). The composite filter (201) is threadedly fixed to the recycling box (1) by the limiting bolt (202). The inside of the recycling box (1) is provided with a storage chamber (204) on one side of the composite filter (201). The inner wall of the recycling tank is symmetrically provided with multiple sets of guide grooves (203).

2. The waste chip and liquid circulation device for CNC lathes according to claim 1, characterized in that: Two sets of liquid outlet pipes (205) are fixedly provided at the outer end of the recycling box (1). The liquid outlet pipes (205) are connected to the recycling box (1). A docking plate (206) is fixedly provided at one end of the liquid outlet pipe (205). A filter ring (207) is provided inside the docking plate (206).

3. The waste chip and liquid circulation device for CNC lathes according to claim 2, characterized in that: A connecting plate is provided on the outside of the connecting plate (206), and a transmission pipe (208) is welded inside the connecting plate. An electromagnetic valve (210) is fixedly provided at the outer end of the transmission pipe (208).

4. The waste chip and liquid circulation device for CNC lathes according to claim 3, characterized in that: The connecting plate has multiple sets of pins (209) inside. The filter ring (207) and the docking plate (206) both have holes for accommodating the pins (209). The connecting plate is positioned to fit with the filter ring (207) and the docking plate (206) through the multiple sets of pins (209).

5. A waste chip and liquid circulation device for CNC lathes according to claim 2, characterized in that: The recycling bin (1) is fixedly provided with feeding racks (214) at both ends. One end of the feeding rack (214) is connected to the storage bin (204). The upper end of the feeding rack (214) is fastened with a cover plate (215).

6. A waste chip and liquid circulation device for CNC lathes according to claim 4, characterized in that: The recycling tank is equipped with a recycling tray (212) inside. The recycling tank has a movable groove for accommodating the recycling tray (212) inside. The recycling tray (212) has multiple sets of drainage holes inside. A connecting plate (211) is welded to one end of the recycling tray (212). Two sets of screws (213) are provided on the outer end of the connecting plate (211). The connecting plate (211) is threadedly fixed to the recycling box (1) by the two sets of screws (213).

7. A waste chip and liquid circulation device for CNC lathes according to claim 3, characterized in that: A positioning post (216) is welded at the upper corner of the recycling bin (1), and multiple sets of docking grooves are opened at the upper end of the recycling bin (1).

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