Spindle cooling device of numerically controlled lathe

By introducing a cooling box, heat dissipation box, and storage tank into the spindle cooling device of a CNC lathe, and combining them with an electrical control system, the problem of coolant not being able to be cooled and stored has been solved, achieving effective heat dissipation and recycling of coolant, and improving spindle cooling effect and equipment life.

CN223971352UActive Publication Date: 2026-03-06HEBEI HANGSHUN TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-08
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

The existing CNC lathe spindle cooling system does not have a cooling box, so it cannot cool the high-temperature coolant, and it does not have a storage tank, so it cannot store the cooled coolant, resulting in the coolant not being able to be recycled.

Method used

A device comprising a cooling box, a heat dissipation box, a storage tank, and an electrical control system was designed. The device accelerates the heat dissipation of the coolant by setting heat dissipation fins and heat dissipation fans, controls the flow and storage of the coolant by using a booster pump and a solenoid valve, and achieves automated management by combining liquid level and temperature sensors.

Benefits of technology

It achieves effective heat dissipation and recycling of coolant, improves spindle cooling effect, extends spindle service life, and simplifies operation and maintenance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of lathe equipment, in particular to a numerical control lathe spindle cooling device which comprises a cooling box, a first electromagnetic valve is arranged on the upper portion of one side of the cooling box, and a first booster pump is arranged on one side of the first electromagnetic valve. The first booster pump is connected with a second electromagnetic valve through a pipeline, a heat dissipation box is arranged on one side of the second electromagnetic valve, heat dissipation fins are arranged on the two sides of the heat dissipation box, a heat conduction plate is arranged in the heat dissipation box, a plurality of heat conduction blocks are arranged on the two sides of the heat conduction plate, and the heat conduction blocks and the heat dissipation fins are integrally connected. And a heat dissipation fan shell is arranged on one side of the heat dissipation fins. The heat dissipation box is arranged to dissipate heat of the cooling liquid, the heat dissipation fins are arranged to increase the contact area with air, and the heat dissipation fan is arranged to accelerate heat dissipation of the heat dissipation fins.
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Description

Technical Field

[0001] This utility model relates to the field of lathe equipment technology, specifically to a CNC lathe spindle cooling device. Background Technology

[0002] CNC lathes are among the most widely used CNC machine tools. They are mainly used for cutting and machining internal and external cylindrical surfaces, internal and external conical surfaces with arbitrary cone angles, complex rotating internal and external curved surfaces, and cylindrical and conical threads of shaft or disc parts. They can also perform grooving, drilling, reaming, boring, and other machining operations. The CNC lathe spindle is a crucial component of the CNC lathe. When machining workpieces, the spindle generates heat. To extend the spindle's service life, a cooling device is required to cool it.

[0003] A search revealed that Chinese patent application number 202220832162.1 discloses a CNC lathe spindle cooling device, including a housing, a water tank fixedly installed at the lower part of the housing, and a partition fixedly installed inside the water tank. An inlet valve pipe and an outlet valve pipe are fixedly installed through one side of the water tank. Bushings are installed through the front and rear ends of the housing, and a spindle is installed through the two sets of bushings. A condenser pipe is provided inside the housing, and one end of the two sets of condenser pipes passes through the partition. A water pump is installed on the side wall of one end of the condenser pipe. An intercepting mesh pipe is sleeved on the side walls of the front and rear ends of the housing. Two sets of exhaust fan blades are installed on the side of one end of the spindle. This utility model uses exhaust fan blades.

[0004] However, existing patents have the following drawbacks:

[0005] This CNC lathe spindle cooling device does not have a cooling box, so it cannot cool the high-temperature coolant. It also does not have a storage tank, so it cannot store the cooled coolant, and the coolant cannot be recycled. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] To address the shortcomings of existing technologies, this utility model provides a CNC lathe spindle cooling device, which solves the problems of not having a cooling box to cool high-temperature coolant, not having a storage tank to store the cooled coolant, and not being able to recycle the coolant.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model is implemented through the following technical solution: It includes a cooling box, characterized in that: a first solenoid valve is provided on the upper part of one side of the cooling box; a first booster pump is provided on one side of the first solenoid valve; the first booster pump is connected to a second solenoid valve via a pipe; a heat dissipation box is provided on one side of the second solenoid valve; heat dissipation fins are provided on both sides of the heat dissipation box; a heat-conducting plate is provided inside the heat dissipation box; several heat-conducting blocks are provided on both sides of the heat-conducting plate; the heat-conducting blocks are integrally connected to the heat dissipation fins; a cooling fan housing is provided on one side of the heat dissipation fins; the cooling fan housing is connected to a cooling fan body via several fixing rods; several motors are provided at the bottom of the heat dissipation box; and stirring blades are driven by the motors.

[0010] As a preferred embodiment of the present invention, the heat dissipation box is provided with a first top cover at the upper end, and a drain cover is provided on one side of the heat dissipation box.

[0011] As a preferred embodiment of this utility model, a third solenoid valve is provided on the lower part of the other side of the heat dissipation box, and a third booster pump is provided on one side of the third solenoid valve.

[0012] In a preferred embodiment of this invention, the third booster pump is connected to a storage tank via a pipeline, and the storage tank is provided with a second top cover.

[0013] As a preferred embodiment of this utility model, a feeding port is provided at the upper end of the second upper cover, and a pressure relief valve is provided at the upper end of the second upper cover.

[0014] In a preferred embodiment of this invention, a liquid level sensor and a temperature sensor are installed inside the storage tank.

[0015] In a preferred embodiment of this utility model, an insulated tank is provided around the storage tank, a fourth solenoid valve is connected to one side of the storage tank via a pipe, a second booster pump is connected to one side of the fourth solenoid valve via a pipe, and a one-way valve is connected to the second booster pump via a pipe.

[0016] In a preferred embodiment of this utility model, an electrical control box is provided on one side of the heat dissipation box, a controller is provided inside the electrical control box, and a display operator is provided on the upper part of the controller, and the display operator is electrically connected to the controller.

[0017] (III) Beneficial Effects

[0018] This utility model provides a cooling device for the spindle of a CNC lathe, which has the following beneficial effects:

[0019] 1. The CNC lathe spindle cooling device of this utility model is provided with a heat dissipation box for cooling the coolant, heat dissipation fins to increase the contact area with air, and heat dissipation fan to accelerate the cooling of the heat dissipation fins.

[0020] 2. The CNC lathe spindle cooling device of this utility model is equipped with a cooling box for cooling the spindle. The coolant enters from the lower part of one side of the cooling box and exits from the upper part of the other side, which can effectively ensure that there is always coolant inside the cooling box.

[0021] 3. The CNC lathe spindle cooling device of this utility model is equipped with a storage tank for storing and collecting coolant. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the top structure of this utility model;

[0025] Figure 3 This is a schematic diagram of the main structure of this utility model;

[0026] Figure 4 This is a schematic diagram of the left structure of this utility model;

[0027] In the diagram: 1. Cooling tank; 2. First solenoid valve; 3. First booster pump; 4. Radiator fan housing; 5. Fixing rod; 6. Radiator fan body; 7. Protective net; 8. Heat dissipation fins; 9. Heat-conducting plate; 10. Second solenoid valve; 11. Electrical control box; 12. Radiator; 13. Heat-conducting block; 14. First top cover; 15. Third solenoid valve; 16. Drain cover; 17. Storage tank; 18. Feed port; 19. Pressure relief valve; 20. Second top cover; 21. Liquid level sensor; 22. Insulated tank; 23. Fourth solenoid valve; 24. Second booster pump; 25. Third booster pump; 26. Check valve; 27. Temperature sensor; 28. Display operator; 29. ​​Controller; 30. Motor; 31. Stirring blade. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0029] Please see Figures 1 to 4This utility model provides a technical solution: a CNC lathe spindle cooling device, including a cooling box 1. A first solenoid valve 2 is provided on the upper part of one side of the cooling box 1. A first booster pump 3 is provided on one side of the first solenoid valve 2. The first booster pump 3 is connected to a second solenoid valve 10 through a pipe. A heat dissipation box 12 is provided on one side of the second solenoid valve 10. Heat dissipation fins 8 are provided on both sides of the heat dissipation box 12. A heat-conducting plate 9 is provided inside the heat dissipation box 12. Several heat-conducting blocks 13 are provided on both sides of the heat-conducting plate 9. The heat-conducting blocks 13 are integrally connected to the heat dissipation fins 8. A heat dissipation fan housing 4 is provided on one side of the heat dissipation fins 8. The heat dissipation fan housing 4 is connected to a heat dissipation fan body 6 through several fixing rods 5. Several motors 30 are provided at the bottom of the heat dissipation box 12. The motors 30 are driven by stirring blades 31.

[0030] In a specific embodiment of this utility model, a cooling box 1 is used to cool the spindle of a CNC lathe. A first solenoid valve 2 is provided on the upper part of one side of the cooling box 1 to control the flow of coolant. A first booster pump 3 is provided on one side of the first solenoid valve 2 to pressurize and deliver the outflowing coolant. The first booster pump 3 is connected to a second solenoid valve 10 through a pipe to control the flow of coolant. A heat sink 12 is provided on one side of the second solenoid valve 10 to temporarily store and cool the high-temperature coolant that has been cooled. Heat sink fins 8 are provided on both sides of the heat sink 12 to increase the contact area with air. A heat conduction plate 9 is provided inside the heat sink 12, and several heat conduction fins 8 are provided on both sides of the heat conduction plate 9. A heat-conducting block 13 is integrally connected to the heat dissipation fins 8, allowing the high-temperature coolant to better transfer its temperature to the heat dissipation fins 8. A heat dissipation fan housing 4 is provided on one side of the heat dissipation fins 8. The heat dissipation fan housing 4 is connected to the heat dissipation fan body 6 through several fixing rods 5. The heat dissipation fan body 6 accelerates the air circulation around the heat dissipation fins 8, continuously blowing the heat on the heat dissipation fins 8 to the outside. Several motors 30 are provided at the bottom of the heat dissipation box 12 to provide driving force for the rotation of the stirring blades 31. The motors 30 are connected to the stirring blades 31, and the stirring blades 31 are driven by the motors 30 to rotate, stirring the inside of the heat dissipation box 12 and accelerating the cooling of the high-temperature coolant.

[0031] Specifically, the heat dissipation box 12 is provided with a first upper cover 14 at the upper end, and a drain cover 16 is provided on one side of the heat dissipation box 12.

[0032] To solve the problem of the heat sink being difficult to clean, such as Figure 1 As shown, the heat sink 12 is provided with a first top cover 14 at the top, which makes it easy for personnel to open and clean the inside of the heat sink 12. A drain cover 16 is provided on one side of the heat sink 12, which makes it easy to discharge cleaning liquid and impurities during cleaning.

[0033] Specifically, a third solenoid valve 15 is provided on the lower part of the other side of the heat sink 12, and a third booster pump 25 is provided on one side of the third solenoid valve 15.

[0034] To solve the problems of coolant flow and pressurized delivery, such as Figure 1 As shown, a third solenoid valve 15 is provided on the lower part of the other side of the heat sink 12 to control the flow of coolant. A third booster pump 25 is provided on one side of the third solenoid valve 15 to pressurize and transmit the coolant.

[0035] Specifically, the third booster pump 25 is connected to a storage tank 17 via a pipeline, and a second cover 20 is provided on the upper end of the storage tank 17.

[0036] To address the issue of storing the cooled coolant, such as Figure 1 As shown, the third booster pump 25 is connected to a storage tank 17 via a pipeline for temporarily storing the coolant after cooling. A second cover 20 is provided on the upper end of the storage tank 17 to prevent debris from falling into the storage tank 17.

[0037] Specifically, the upper end of the second cover 20 is provided with a feeding port 18, and the upper end of the second cover 20 is provided with a pressure relief valve 19.

[0038] To solve the problem of difficulty in feeding materials, such as Figure 1 As shown, the upper end of the second cover 20 is provided with a feeding port 18 for adding coolant, and the upper end of the second cover 20 is provided with a pressure relief valve 19 for balancing internal and external pressure.

[0039] Specifically, a liquid level sensor 21 and a temperature sensor 27 are installed inside the storage tank 17.

[0040] To address the issues related to coolant level and temperature detection, such as... Figure 2 As shown, a liquid level sensor 21 is installed inside the storage tank 17 to detect the coolant capacity, and a temperature sensor 27 is installed inside the storage tank 17 to detect the coolant temperature.

[0041] Specifically, the storage tank 17 is surrounded by an insulated tank 22. A fourth solenoid valve 23 is connected to one side of the storage tank 17 via a pipe. A second booster pump 24 is connected to one side of the fourth solenoid valve 23 via a pipe. A one-way valve 26 is connected to the second booster pump 24 via a pipe.

[0042] To address the issue of heat preservation of the cooled coolant in the storage tubes, such as... Figure 1As shown, an insulation tank 22 is provided around the storage tank 17 to keep the coolant in the storage tank 17 warm. A fourth solenoid valve 23 is connected to one side of the storage tank 17 via a pipe to control the flow of the solution. A second booster pump 24 is connected to one side of the fourth solenoid valve 23 via a pipe to pressurize and transmit the solution. A one-way valve 26 is connected to the second booster pump 24 via a pipe. The one-way valve 26 is connected to the bottom of one side of the cooling box 1 to prevent the solution from flowing back. The flow from the bottom can increase the residence time of the coolant in the cooling box 1, resulting in a better cooling effect on the spindle.

[0043] Specifically, an electrical control box 11 is provided on one side of the heat dissipation box 12. A controller 29 is provided inside the electrical control box 11. A display operator 28 is provided on the upper part of the controller 29. The display operator 28 is electrically connected to the controller 29.

[0044] To solve the problems of device operation and control, such as Figure 4 As shown, an electrical control box 11 is provided on one side of the heat dissipation box 12 for installing a controller 29. The controller 29 is installed inside the electrical control box 11. The controller 29 is electrically connected to the power supply of the cooling device. A display operator 28 is provided on the upper part of the controller 29. The display operator 28 is electrically connected to the controller 29 and is used to display the device's operating data, while also facilitating the user's operation and control of the device.

[0045] The detailed description of known functions and components is omitted in this disclosure. To ensure the compatibility of the equipment, the operating methods used are consistent with the parameters of commercially available instruments.

[0046] In summary, the working principle and usage of this utility model are as follows: The cooling box 1 is used to cool the CNC lathe spindle. A first solenoid valve 2 is installed on the upper side of one side of the cooling box 1 to control the flow of coolant. A first booster pump 3 is installed on one side of the first solenoid valve 2 to pressurize and deliver the outflowing coolant. The first booster pump 3 is connected to a second solenoid valve 10 via a pipe to control the flow of coolant. A heat sink 12 is installed on one side of the second solenoid valve 10 to temporarily store and cool the high-temperature coolant that has been cooled. Heat dissipation fins 8 are installed on both sides of the heat sink 12 to increase the contact area with air. A heat-conducting plate 9 is installed inside the heat sink 12, and several heat-conducting blocks 13 are installed on both sides of the heat-conducting plate 9. The heat-conducting blocks 13 are integrally connected to the heat dissipation fins 8, allowing the high-temperature coolant to cool down. The coolant effectively transfers heat to the heat dissipation fins 8. A cooling fan housing 4 is located on one side of the heat dissipation fins 8. The cooling fan housing 4 is connected to the cooling fan body 6 via several fixing rods 5. The cooling fan body 6 accelerates the airflow around the heat dissipation fins 8, continuously blowing the heat from the heat dissipation fins 8 to the outside. Several motors 30 are located at the bottom of the heat dissipation box 12, providing driving force for the rotation of the stirring blades 31. The motors 30 are connected to the stirring blades 31, driving the stirring blades 31 to rotate and stir the inside of the heat dissipation box 12, accelerating the cooling of the high-temperature coolant. A first top cover 14 is located at the top of the heat dissipation box 12 for easy access and cleaning. A drain cover 16 is located on one side of the heat dissipation box 12 for easy removal of waste during cleaning. The coolant and impurities are discharged. A third solenoid valve 15 is installed on the lower part of the other side of the heat sink 12 to control the flow of coolant. A third booster pump 25 is installed on one side of the third solenoid valve 15 to pressurize and transmit the coolant. The third booster pump 25 is connected to a storage tank 17 through a pipe to temporarily store the cooled coolant. A second cover 20 is installed on the upper end of the storage tank 17 to prevent debris from falling into the storage tank 17. A filling port 18 is installed on the upper end of the second cover 20 for adding coolant. A pressure relief valve 19 is installed on the upper end of the second cover 20 to balance the internal and external pressure. A liquid level sensor 21 is installed inside the storage tank 17 to detect the coolant volume. A temperature sensor 27 is installed inside the storage tank 17 to detect the coolant temperature. An insulation tank 22 is installed on the periphery to keep the coolant in the storage tank 17 warm. A fourth solenoid valve 23 is connected to one side of the storage tank 17 via a pipe to control the flow of the solution. A second booster pump 24 is connected to one side of the fourth solenoid valve 23 via a pipe to pressurize and transfer the solution. The second booster pump 24 is connected to a one-way valve 26 via a pipe. The one-way valve 26 is connected to the bottom of one side of the cooling box 1 to prevent backflow of the solution. The flow from the bottom increases the residence time of the coolant in the cooling box 1, resulting in better cooling of the spindle. An electrical control box 11 is installed on one side of the heat dissipation box 12 to install a controller 29. The controller 29 is electrically connected to the electrical device of the cooling system. A display operator 28 is installed on the upper part of the controller 29.The display operator 28 is electrically connected to the controller 29 and is used to display the device's operating data, while also facilitating user operation and control of the device.

[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cooling device for the spindle of a numerically controlled lathe, comprising a cooling tank (1), characterized in that: The cooling box (1) is provided with a first electromagnetic valve (2) on one side of the upper part, the first electromagnetic valve (2) is provided with a first booster pump (3) on one side, the first booster pump (3) is connected with a second electromagnetic valve (10) through a pipeline, the second electromagnetic valve (10) is provided with a heat dissipation box (12) on one side, the heat dissipation box (12) is provided with heat dissipation fins (8) on both sides, the heat dissipation box (12) is provided with heat conduction plates (9) inside, the heat conduction plates (9) are provided with a plurality of heat conduction blocks (13) on both sides, the heat conduction blocks (13) are integrally connected with the heat dissipation fins (8), the heat dissipation fins (8) are provided with a heat dissipation fan shell (4) on one side, the heat dissipation fan shell (4) is connected with a heat dissipation fan body (6) through a plurality of fixing rods (5), the heat dissipation box (12) is provided with a plurality of motors (30) at the bottom end, and the motors (30) are drivingly connected with stirring blades (31).

2. The CNC lathe spindle cooling arrangement as claimed in claim 1, wherein: The heat dissipation box (12) is provided with a first upper cover (14) on the upper end, and the heat dissipation box (12) is provided with a blowdown cover (16) on one side.

3. The CNC lathe spindle cooling arrangement as claimed in claim 2, wherein: The heat dissipation box (12) is provided with a third electromagnetic valve (15) on the other side of the lower part, and the third electromagnetic valve (15) is provided with a third booster pump (25) on one side.

4. The CNC lathe spindle cooling arrangement as claimed in claim 3, wherein: The third booster pump (25) is connected with a storage tank (17) through a pipeline, and the storage tank (17) is provided with a second upper cover (20) on the upper end.

5. The CNC lathe spindle cooling arrangement as claimed in claim 4, wherein: The second upper cover (20) is provided with a charging port (18) on the upper end, and the second upper cover (20) is provided with a pressure relief valve (19) on the upper end.

6. The CNC lathe spindle cooling arrangement as claimed in claim 5, wherein: The storage tank (17) is provided with a liquid level sensor (21) inside, and the storage tank (17) is provided with a temperature sensor (27) inside.

7. The CNC lathe spindle cooling arrangement as claimed in claim 6, wherein: The storage tank (17) is provided with a heat preservation tank (22) on the periphery, and the storage tank (17) is connected with a fourth electromagnetic valve (23) on one side through a pipeline, the fourth electromagnetic valve (23) is connected with a second booster pump (24) on one side through a pipeline, and the second booster pump (24) is connected with a check valve (26) through a pipeline.

8. The CNC lathe spindle cooling arrangement as claimed in claim 7, wherein: The heat dissipation box (12) is provided with an electric control box (11) on one side, the electric control box (11) is provided with a controller (29) inside, the controller (29) is provided with a display operator (28) on the upper part, and the display operator (28) is electrically connected with the controller (29).

Citation Information

Patent Citations

  • Spindle cooling device of numerically controlled lathe

    CN218397269U