Circulating cooling device of numerical control machining center

By introducing a cooling tank, a liquid storage tank, and a filter into the circulating cooling device of a CNC machining center, and using a perforated plate and a fan to cool down and filter impurities, the problem of incompletely cooled coolant backflow affecting the cooling effect is solved, and efficient dispersed cooling and recycling of coolant are achieved.

CN224073942UActive Publication Date: 2026-04-03CHENGDU XIANGCHENG AVIATION TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-24
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

In existing CNC machining centers, during the cooling process, high-temperature coolant that has not been fully cooled flows back into the low-temperature coolant, causing the temperature of the mixed coolant to rise and affecting the subsequent cooling effect.

Method used

A circulating cooling device is designed, comprising a cooling tank, a liquid storage tank, a cooling section, and a filtration section. The cooling tank is equipped with a perforated plate, a fan, and an exhaust pipe. The fan removes heat and filters impurities. The liquid storage tank is used to store the coolant after it has been completely cooled, thus achieving decentralized cooling and filtration of the circulating coolant.

Benefits of technology

It effectively reduces coolant temperature, improves cooling performance, reduces the risk of malfunctions, enhances filtration, ensures coolant quality, and enables efficient recycling of coolant.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a circulating cooling device of a numerical control machining center, which comprises a cooling box, a liquid storage box, a cooling part and a filtering part, the cooling box is arranged at the top of the liquid storage box, a circulating inlet is arranged at the top of the cooling box, a conveying pipe communicated with the top of the liquid storage box is arranged at the bottom of the cooling box, a valve is arranged on the conveying pipe, and a circulating outlet is arranged at the bottom of the liquid storage box. A pump body is arranged at the circulating outlet; the cooling part comprises a fan, a perforated plate and an exhaust pipe, the fan and the exhaust pipe are arranged on the two opposite sides of the cooling box respectively, and the perforated plate is arranged at the position, higher than the fan and the exhaust pipe, in the cooling box; and the filtering part comprises a first filter screen which is arranged in the cooling box and is lower than the fan and the exhaust pipe. According to the circulating cooling device of the numerical control machining center, the cooling box and the liquid storage box are arranged, cooling can be conducted firstly, then output is conducted, and the follow-up cooling effect is prevented from being affected.
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Description

Technical Field

[0001] This utility model relates to the field of circulating cooling equipment, and in particular to a circulating cooling device for a CNC machining center. Background Technology

[0002] During the machining process, CNC machining centers use circulating coolant to cool the machining area. Some equipment's circulating cooling devices use increased airflow to dissipate heat during the cooling process. However, the coolant after the cooling cycle is generally at a high temperature. If it is not completely cooled before flowing back into the low-temperature coolant to mix, the temperature of the mixed coolant will rise, affecting the subsequent cooling effect. Utility Model Content

[0003] To address the aforementioned issues, this invention provides a circulating cooling device for CNC machining centers, which includes a cooling tank and a liquid storage tank. This device allows for pre-cooling before output, thus avoiding any impact on subsequent cooling effects.

[0004] The technical solution of this utility model is as follows:

[0005] A circulating cooling device for a CNC machining center includes a cooling tank, a liquid storage tank, a cooling section, and a filtration section. The cooling tank is located on top of the liquid storage tank and has a circulation inlet at its top. A conveying pipe connected to the top of the liquid storage tank is located at the bottom of the cooling tank, and a valve is installed on the conveying pipe. A circulation outlet is located at the bottom of the liquid storage tank, and a pump is installed at the circulation outlet. The cooling section includes a fan, a perforated plate, and an exhaust pipe. The fan and exhaust pipe are located on opposite sides of the cooling tank, and the perforated plate is positioned inside the cooling tank above the fan and exhaust pipe. The filtration section includes a first filter screen positioned inside the cooling tank below the fan and exhaust pipe.

[0006] In a further technical solution, the perforated plate is inclined downward along the direction from the exhaust pipe to the fan, and the circulation inlet is located on the top of the cooling box, near the higher side of the perforated plate.

[0007] In a further technical solution, the exhaust pipe is a bent pipe with its end facing upwards.

[0008] In a further technical solution, a connecting cylinder is provided on the side of the cooling box where the fan is located, which communicates with the inside of the cooling box. The end of the connecting cylinder extends to the outside of the cooling box, and the fan is located at the end of the connecting cylinder.

[0009] In a further technical solution, a second filter screen is provided on the bottom side of the porous plate, and the mesh size of the second filter screen is larger than that of the first filter screen.

[0010] In a further technical solution, a sealing door is provided on the front side of the cooling box, above the first filter screen.

[0011] In a further technical solution, the liquid storage tank is equipped with a level gauge.

[0012] In a further technical solution, a flow meter is provided on the delivery pipe.

[0013] In a further technical solution, the bottom of the cooling tank is provided with a first drain port, and the bottom of the storage tank is provided with a second drain port.

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

[0015] 1. A cooling tank and a storage tank are provided. The perforated plate in the cooling tank facilitates the dispersion of the coolant after cooling and circulation, and promotes heat dissipation. During the cooling process, the coolant is carried away by the cold air from the fan and discharged from the exhaust pipe. The first filter can filter impurities contained in the coolant. After initial cooling, the coolant continues to cool statically at the bottom of the cooling tank. The storage tank is responsible for storing the fully cooled coolant, which can be pumped to the CNC machining center for cooling. When the coolant in the storage tank is insufficient and the coolant in the cooling tank has been cooled, the delivery pipe can be opened to replenish the coolant in the storage tank to complete the circulation.

[0016] 2. The exhaust pipe ends facing upwards, which facilitates the return of coolant entering the exhaust pipe;

[0017] 3. The fan extends outside the cooling box via a connecting cylinder to prevent splashed coolant from falling directly onto the fan, thus reducing the risk of malfunction;

[0018] 4. A second filter is installed so that the coolant is filtered twice, resulting in better filtration.

[0019] 5. The sealed door can be opened to clean the first filter, the second filter, and the perforated plate. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a circulating cooling device for a CNC machining center according to an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of the cooling box described in an embodiment of this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 10. Cooling tank; 11. Circulation inlet; 12. Sealing door; 13. First drain outlet; 20. Storage tank; 21. Level gauge; 22. Circulation outlet; 23. Second drain outlet; 30. Delivery pipe; 31. Valve; 32. Flow meter; 40. Pump body; 51. Fan; 52. Perforated plate; 53. Exhaust pipe; 54. Connecting cylinder; 60. First filter screen; 70. Second filter screen. Detailed Implementation

[0024] The embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0025] Example:

[0026] like Figure 1-2 As shown, a circulating cooling device for a CNC machining center includes a cooling tank 10, a liquid storage tank 20, a cooling section, and a filtration section. The cooling tank 10 is located on top of the liquid storage tank 20. The top of the cooling tank 10 has a circulation inlet 11, and the bottom of the cooling tank 10 has a conveying pipe 30 connecting to the top of the liquid storage tank 20. The conveying pipe 30 is equipped with a valve 31 and a flow meter 32, which monitors the flow rate. The side wall of the liquid storage tank 20 is equipped with a level gauge 21 for easy viewing of the liquid level. The bottom of the liquid storage tank 20 has a circulation outlet 22, and a pump body 40 is located at the circulation outlet 22. The cooling section includes a fan 51, a perforated plate 52, and an exhaust pipe 53. The fan 51 and the exhaust pipe 53 are respectively located on opposite sides of the cooling tank 10. The perforated plate 52 is located inside the cooling tank 10, above the fan 51 and the exhaust pipe 53. The filtration section includes a first filter screen 60, located inside the cooling tank 10, below the fan 51 and the exhaust pipe 53.

[0027] The working principle of the above technical solution is as follows:

[0028] In use, the circulation inlet 11 of the cooling tank 10 is connected to the drain position of the CNC machining center. The heated coolant carries impurities and flows to the perforated plate 52 for dispersion, which is conducive to heat dissipation. As the coolant falls from the perforated plate 52 to the first filter screen 60, the cold air from the fan 51 carries away some of the heat of the coolant and is discharged from the exhaust pipe 53. The first filter screen 60 can filter the impurities contained in the coolant. The coolant after initial cooling continues to stand and cool at the bottom of the cooling tank 10. The storage tank 20 is responsible for storing the fully cooled coolant, which can be pumped to the CNC machining center for cooling using the pump body 40. The level gauge 21 can visually indicate the level of the storage tank 20. When the coolant in the storage tank 20 is insufficient and the coolant in the cooling tank 10 has been cooled, the delivery pipe 30 can be opened to refill the storage tank 20 with coolant to complete the circulation.

[0029] In another embodiment, such as Figure 1 As shown, the perforated plate 52 is inclined downward along the direction from the exhaust pipe 53 to the fan 51, and the circulation inlet 11 is located on the top of the cooling box 10 near the higher side of the perforated plate 52.

[0030] After entering through the circulation inlet 11, the coolant can flow down along the inclined direction of the perforated plate 52, increasing the fluidity of the coolant and further facilitating its dispersion and cooling.

[0031] In another embodiment, such as Figure 1-2As shown, the exhaust pipe 53 is a bent pipe with its end facing upwards. This facilitates the return flow of coolant entering the exhaust pipe 53.

[0032] In another embodiment, such as Figure 1-2 As shown, a connecting cylinder 54 is provided on the side of the cooling box 10 where the fan 51 is located, which connects to the inside of the cooling box 10. The end of the connecting cylinder 54 extends to the outside of the cooling box 10, and the fan 51 is located at the end of the connecting cylinder 54. The bottom of the side of the connecting cylinder 54 that connects to the cooling box 10 can be tilted to facilitate the return of the coolant entering the connecting cylinder 54.

[0033] The fan 51 extends outside the cooling box 10 via the connecting cylinder 54, preventing splashed coolant from falling directly onto the fan 51 and reducing the risk of malfunction.

[0034] In another embodiment, such as Figure 1 As shown, a second filter screen 70 is provided on the bottom side of the perforated plate 52, and the mesh size of the second filter screen 70 is larger than that of the first filter screen 60.

[0035] The second filter 70 is installed so that the coolant is filtered twice, resulting in better filtration.

[0036] In another embodiment, such as Figure 2 As shown, a sealing door 12 is provided on the front side of the cooling box 10, above the first filter screen 60.

[0037] The sealed door 12 can be opened to facilitate cleaning of the first filter screen 60, the second filter screen 70, and the perforated plate 52.

[0038] In another embodiment, such as Figure 1-2 As shown, the bottom of the cooling tank 10 is provided with a first drain port 13, and the bottom of the storage tank 20 is provided with a second drain port 23.

[0039] To facilitate cleaning of the cooling tank 10 and the liquid storage tank 20, residual liquid is discharged from the first drain port 13 and the second drain port 23, respectively.

[0040] The above embodiments merely illustrate specific implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A circulating cooling device for a numerical control machining center, characterized by, The application relates to a cooling device for liquid medicine, which comprises a cooling box, a liquid storage box, a cooling part and a filtering part.

2. A circulating cooling device for a CNC machining center according to claim 1, characterized in that, The porous plate is arranged to be inclined downward along the direction from the exhaust pipe to the fan, and the circulating inlet is arranged on the higher side of the porous plate on the top of the cooling box.

3. The circulating cooling device of a CNC machining center according to claim 1, characterized in that, The exhaust pipe is a bent pipe, and the end of the pipe is arranged upward.

4. The circulating cooling device of a CNC machining center according to claim 1, characterized in that, The side of the cooling box, on which the fan is arranged, is provided with a connecting cylinder which is connected with the inside of the cooling box, the end of the connecting cylinder extends to the outside of the cooling box, and the fan is arranged at the end of the connecting cylinder.

5. The circulating cooling device of a CNC machining center according to claim 2, characterized in that, The bottom side of the porous plate is provided with a second filter screen, and the mesh of the second filter screen is larger than that of the first filter screen.

6. A recirculating cooling device for a numerically controlled machine center according to claim 5, wherein The front side of the cooling box is provided with a sealing door which is higher than the first filter screen.

7. The circulating cooling device of a CNC machining center according to claim 1, characterized in that, The liquid storage box is provided with a liquid level meter.

8. The circulating cooling device of a CNC machining center according to claim 1, characterized in that, The conveying pipe is provided with a flow meter.

9. The circulating cooling device of a CNC machining center according to claim 1, characterized in that, The bottom of the cooling box is provided with a first liquid outlet, and the bottom of the liquid storage box is provided with a second liquid outlet.