High-precision motorized spindle temperature control cooling structure

By designing a high-precision electric spindle temperature control and cooling structure with components such as cooling rings, microtubes, oil pumps, refrigeration units, and blowers on CNC lathes, the problem of heat dissipation in electric spindles has been solved, achieving temperature control and reducing malfunctions.

CN224266006UActive Publication Date: 2026-05-22HENAN DINGJIAN MASCH TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN DINGJIAN MASCH TECH CO LTD
Filing Date
2025-06-12
Publication Date
2026-05-22

AI Technical Summary

Technical Problem

The high-precision electric spindles on existing CNC lathes cannot effectively dissipate heat, leading to excessively high temperatures and potential malfunctions.

Method used

A high-precision electric spindle temperature control and cooling structure was designed, including components such as a cooling ring, microtube, oil pump, refrigerator and blower. The temperature of the electric spindle is reduced by cooling oil circulation and refrigerator, and the internal space of the housing is kept sealed by a sealing mechanism.

Benefits of technology

It effectively reduces the temperature of the electric spindle, decreases the occurrence of failures, ensures cooling effect, maintains the circulation speed of the cooling oil and evenly disperses the cold air, and prevents the influence of external temperature.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a high-precision motorized spindle temperature control cooling structure, which relates to the technical field of high-precision motorized spindle temperature control cooling structures, and comprises a processing mechanism, the processing mechanism comprises an equipment shell, a motorized spindle body is sleeved in the equipment shell, a cooling mechanism is arranged in the equipment shell, and the motorized spindle body is connected with the cooling mechanism in a sleeved mode. And the cooling mechanism comprises a cooling ring, the cooling ring is connected with the interior of the equipment shell in a sleeved mode, the cooling ring is fixedly connected with the equipment shell, and a first micro pipe is connected with the interior of the cooling ring in a sleeved mode. According to the high-precision motorized spindle for the numerical control lathe, the cooling mechanism is arranged, so that the high-precision motorized spindle cannot have the condition of over-high temperature during use, faults of the high-precision motorized spindle caused by high temperature are effectively reduced, the refrigerating machine is arranged, and the temperature in the inner space of the equipment shell can be reduced by the refrigerating machine, so that the temperature of the high-precision motorized spindle can be reduced, and the service life of the high-precision motorized spindle is prolonged. Therefore, the temperature of the radiating pipe entering the space is effectively cooled, and the temperature of the cooling oil in the radiating pipe is also reduced.
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Description

Technical Field

[0001] This utility model relates to the technical field of high-precision electric spindle temperature control and cooling structure, and in particular to a high-precision electric spindle temperature control and cooling structure. Background Technology

[0002] A high-precision electric spindle is a high-speed, high-precision drive device that integrates a motor and a spindle. It is directly driven by electricity to rotate, eliminating the need for traditional mechanical transmission structures such as belts and gears.

[0003] Existing CNC lathes are equipped with high-precision electric spindles, which are fixedly installed inside the housing of the machining equipment. Since the housing of the CNC lathe is solid and thick, the heat generated by the high-precision electric spindle during use cannot be effectively dissipated, which will affect the use of the high-precision electric spindle and may cause it to malfunction. To address this, we provide a high-precision electric spindle temperature control and cooling structure. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies where high-precision electric spindles for CNC lathes cannot be cooled, and to provide a temperature-controlled cooling structure for high-precision electric spindles.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a high-precision electric spindle temperature control and cooling structure, comprising: a machining mechanism, the machining mechanism including a housing, an electric spindle body sleeved inside the housing, a cooling mechanism inside the housing, the cooling mechanism including a cooling ring sleeved inside the housing and fixedly connected to the housing, a microtube one sleeved inside the cooling ring, a microtube two sleeved inside the cooling ring, an oil inlet pipe sleeved inside the housing, an oil outlet pipe sleeved inside the housing, an oil pump one sleeved inside the housing and fixedly connected to the oil inlet pipe, an oil pump two sleeved inside the housing and fixedly connected to the oil outlet pipe, a heat dissipation pipe inside the housing and fixedly connected to both oil pump one and oil pump two, a refrigeration unit sleeved inside the housing, a fan inside the housing, and a sealing mechanism inside the housing.

[0006] In a preferred embodiment, the electric spindle body is fixedly connected to the equipment housing, the first microtube is fixedly connected to the cooling ring, the second microtube is fixedly connected to the cooling ring, the oil inlet pipe is fixedly connected to the first microtube, and the oil outlet pipe is fixedly connected to the second microtube.

[0007] In a preferred embodiment, the first oil pump is fixedly connected to the equipment housing, the second oil pump is fixedly connected to the equipment housing, the refrigeration unit is fixedly connected to the equipment housing, and the blower is fixedly connected to the inner wall of the equipment housing.

[0008] In a preferred embodiment, the sealing mechanism includes a baffle that is sleeved inside the equipment housing and slidably connected to the equipment housing. A fixing frame is provided on one side of the baffle and is fixedly connected to the equipment housing. A rubber gasket is sleeved inside the fixing frame.

[0009] In a preferred embodiment, the rubber pad is slidably connected to the fixed frame, the fixed frame has an installation groove that fits the rubber pad, both ends of the baffle are fixedly connected to connecting blocks, and bolts are sleeved between the connecting blocks and the inside of the equipment housing.

[0010] In a preferred embodiment, the bolt is slidably connected to the connecting block, and the bolt is threadedly connected to the equipment housing.

[0011] In a preferred embodiment, a pull rod is provided on one side of the baffle, and the pull rod is fixedly connected to the baffle.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] This invention, by incorporating a cooling mechanism, prevents the high-precision electric spindle of the CNC lathe from overheating during operation, thereby effectively reducing malfunctions caused by high temperatures. The inclusion of a refrigeration unit lowers the temperature within the equipment housing, effectively cooling the heat dissipation pipes entering this space. This also lowers the temperature of the cooling oil within the heat dissipation pipes, allowing the circulating cooling ring to effectively absorb the heat generated by the high-precision electric spindle, thus reducing its temperature. Furthermore, a sealing mechanism maintains a sealed environment within the equipment housing, preventing the leakage of cool air to the outside. Attached Figure Description

[0014] Figure 1 A perspective view of a high-precision electric spindle temperature control and cooling structure provided by this utility model.

[0015] Figure 2 This is a split diagram of a high-precision electric spindle temperature control and cooling structure provided by this utility model.

[0016] Figure 3 This utility model provides a schematic diagram of the installation of a refrigeration unit for a high-precision electric spindle temperature control and cooling structure.

[0017] Figure 4 A schematic diagram of the heat dissipation pipe installation for a high-precision electric spindle temperature control and cooling structure provided by this utility model.

[0018] Figure 5 An enlarged view of region A of a high-precision electric spindle temperature control and cooling structure provided by this utility model.

[0019] Legend:

[0020] 1. Processing mechanism; 2. Cooling mechanism; 3. Sealing mechanism; 11. Equipment housing;

[0021] 12. Electric spindle body; 21. Cooling ring; 22. Microtube 1; 23. Microtube 2; 24. Oil inlet pipe; 25. Oil outlet pipe; 26. Oil pump 1; 27. Oil pump 2; 28. Heat dissipation pipe;

[0022] 29. Refrigeration unit; 201. Fan; 31. Baffle; 32. Fixing frame; 33. Rubber pad;

[0023] 34. Connecting block; 35. Bolt; 36. Tie rod. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1

[0026] like Figures 1-5As shown, this utility model provides a technical solution: a high-precision electric spindle temperature control and cooling structure, including: a machining mechanism 1, the machining mechanism 1 including a housing 11, an electric spindle body 12 sleeved inside the housing 11, a cooling mechanism 2 inside the housing 11, the cooling mechanism 2 including a cooling ring 21, the cooling ring 21 sleeved inside the housing 11, the cooling ring 21 being fixedly connected to the housing 11, a microtube 22 and a microtube 23 sleeved inside the cooling ring 21, an oil inlet pipe 24 and an oil outlet pipe 25 sleeved inside the housing 11, an oil pump 26 sleeved inside the housing 11, the oil pump 26 being fixedly connected to the oil inlet pipe 24, and an oil pump 27 sleeved inside the housing 11 for oil extraction. Pump 27 is fixedly connected to oil outlet pipe 25. Heat dissipation pipe 28 is provided inside the equipment housing 11. Heat dissipation pipe 28 is fixedly connected to oil pump 1 26 and oil pump 27. Refrigeration unit 29 is sleeved inside the equipment housing 11. Fan 201 is provided inside the equipment housing 11. Sealing mechanism 3 is provided inside the equipment housing 11. Electric spindle body 12 is fixedly connected to equipment housing 11. Microtube 1 22 is fixedly connected to cooling ring 21. Microtube 2 23 is fixedly connected to cooling ring 21. Oil inlet pipe 24 is fixedly connected to microtube 1 22. Oil outlet pipe 25 is fixedly connected to microtube 2 23. Oil pump 1 26 is fixedly connected to equipment housing 11. Oil pump 27 is fixedly connected to equipment housing 11. Refrigeration unit 29 is fixedly connected to equipment housing 11. Fan 201 is fixedly connected to the inner wall of equipment housing 11.

[0027] In this embodiment, by providing multiple cooling rings 21, which are fitted onto the outer surface of the electric spindle body 12, the lower-temperature cooling oil circulating in the cooling rings 21 absorbs the heat generated by the electric spindle body 12, preventing heat accumulation and thus protecting the electric spindle body 12 from overheating. Simultaneously, microtubes 22 and 23 are provided, allowing lower-temperature and higher-temperature cooling oil to enter and exit the cooling rings 21 respectively, ensuring the cooling oil in the cooling rings 21 can effectively dissipate heat. The electric spindle body 12 is cooled by an oil pump 26 and an oil pump 27. The oil pump 26 and the oil pump 27 can pump the cooling oil in the oil inlet pipe 24, the oil outlet pipe 25 and the heat dissipation pipe 28, so that the cooling oil circulation speed is faster, thereby ensuring the cooling effect on the electric spindle body 12. In addition, a chiller 29 is provided, which can generate cold air, thereby reducing the temperature of the internal space of the equipment housing 11, so that the heat of the cooling oil inside the heat dissipation pipe 28 can be absorbed. A fan 201 is provided so that the cold air generated by the chiller 29 can be more evenly distributed.

[0028] Example 2

[0029] like Figures 1-5 As shown, the sealing mechanism 3 includes a baffle 31, which is sleeved inside the equipment housing 11 and slidably connected to the equipment housing 11. A fixing frame 32 is provided on one side of the baffle 31 and is fixedly connected to the equipment housing 11. A rubber pad 33 is sleeved inside the fixing frame 32 and is slidably connected to the fixing frame 32. An installation groove that fits the rubber pad 33 is provided on the fixing frame 32. Connecting blocks 34 are fixedly connected to both ends of the baffle 31. Bolts 35 are sleeved inside the connecting blocks 34 and the equipment housing 11. Bolts 35 are slidably connected to the connecting blocks 34 and are threadedly connected to the equipment housing 11. A pull rod 36 is provided on one side of the baffle 31 and is fixedly connected to the baffle 31.

[0030] In this embodiment, a baffle 31 is provided to block the opening in the space of the equipment housing 11, so that the temperature of the equipment housing 11 will not be affected by the outside. A rubber pad 33 is provided and can be installed in the mounting groove opened on the fixing frame 32. The size of the rubber pad 33 is slightly larger than the mounting groove opened on the fixing frame 32. Thus, the baffle 31 can compress and deform the rubber pad 33, so that the rubber pad 33 can fill the gap between the baffle 31 and the fixing frame 32, so that the connection between the baffle 31 and the fixing frame 32 can maintain a sealed state. In addition, a bolt 35 is provided and can be threaded to the inner wall of the equipment housing 11, so that the baffle 31 can be in a stable state with the cooperation of the bolt 35.

[0031] Working principle:

[0032] like Figures 1-5As shown, in use, the refrigerator 29 and the blower 201 can be periodically inspected. If the refrigerator 29 and the blower 201 are in normal working order, the rubber pad 33 can be installed in the mounting groove on the fixed frame 32. Then, the baffle 31 drives the connecting block 34 into the equipment housing 11. At this time, the baffle 31 first fits against the rubber pad 33. Then, the bolt 35 passes through the connecting block 34 and is threaded into the equipment housing 11. The bolt 35 compresses the baffle 31, causing the rubber pad 33 to deform. Thus, under the action of the rubber pad 33 and the bolt 35, the connection between the baffle 31 and the fixed frame 32 remains sealed. Afterwards, if the electric spindle body 12 operates, it will generate a large amount of heat. At this time, the refrigerator 29 is started to reduce the temperature inside the equipment housing 11. Then, the blower 201 is started. The cooling air generated by the refrigeration unit 29 is dispersed by the fan 201, making the cooling air more evenly distributed inside the equipment housing 11. At the same time, the first oil pump 26 and the second oil pump 27 are started to accelerate the circulation of cooling oil in the cooling ring 21, oil inlet pipe 24, oil outlet pipe 25 and heat dissipation pipe 28. The temperature of the cooling oil in the heat dissipation pipe 28 will be rapidly reduced by the action of the refrigeration unit 29, and it will enter the interior of the oil inlet pipe 24 through the action of the first oil pump 26. Then, it will enter the interior of the cooling ring 21 through the transmission of the first microtube 22. Thus, the heat generated by the electric spindle body 12 can be absorbed by the cooling oil in the cooling ring 21. At the same time, the second oil pump 27 will absorb the cooling oil in the oil outlet pipe 25 and the second microtube 23, so that the cooling oil that has absorbed heat in the cooling ring 21 can be circulated back into the interior of the heat dissipation pipe 28, thereby achieving the purpose of cooling the electric spindle body 12.

[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A high-precision electric spindle temperature control and cooling structure, characterized in that, include: The processing mechanism (1) includes a housing (11), an electric spindle body (12) is sleeved inside the housing (11), and a cooling mechanism (2) is provided inside the housing (11). The cooling mechanism (2) includes a cooling ring (21), which is sleeved inside the housing (11) and fixedly connected to the housing (11). A microtube one (22) is sleeved inside the cooling ring (21), and a microtube two (23) is sleeved inside the cooling ring (21). An oil inlet pipe (24) is sleeved inside the housing (11). An oil outlet pipe (25) is provided inside the equipment housing (11), and an oil pump (26) is fixedly connected to the oil inlet pipe (24). An oil pump (27) is fixedly connected to the equipment housing (11), and an oil outlet pipe (25) is fixedly connected to the oil outlet pipe (25). A heat dissipation pipe (28) is provided inside the equipment housing (11), and the heat dissipation pipe (28) is fixedly connected to both the oil pump (26) and the oil pump (27). A refrigerator (29) is provided inside the equipment housing (11). A blower (201) is provided inside the equipment housing (11). A sealing mechanism (3) is provided inside the equipment housing (11).

2. The high-precision electric spindle temperature control and cooling structure according to claim 1, characterized in that: The electric spindle body (12) is fixedly connected to the equipment housing (11), the first microtube (22) is fixedly connected to the cooling ring (21), the second microtube (23) is fixedly connected to the cooling ring (21), the oil inlet pipe (24) is fixedly connected to the first microtube (22), and the oil outlet pipe (25) is fixedly connected to the second microtube (23).

3. The high-precision electric spindle temperature control and cooling structure according to claim 2, characterized in that: The first oil pump (26) is fixedly connected to the equipment housing (11), the second oil pump (27) is fixedly connected to the equipment housing (11), the refrigeration unit (29) is fixedly connected to the equipment housing (11), and the blower (201) is fixedly connected to the inner wall of the equipment housing (11).

4. The high-precision electric spindle temperature control and cooling structure according to claim 1, characterized in that: The sealing mechanism (3) includes a baffle (31), which is sleeved inside the equipment housing (11). The baffle (31) is slidably connected to the equipment housing (11). A fixing frame (32) is provided on one side of the baffle (31). The fixing frame (32) is fixedly connected to the equipment housing (11). A rubber pad (33) is sleeved inside the fixing frame (32).

5. The high-precision electric spindle temperature control and cooling structure according to claim 4, characterized in that: The rubber pad (33) is slidably connected to the fixed frame (32). The fixed frame (32) has an installation groove that matches the rubber pad (33). Both ends of the baffle (31) are fixedly connected to connecting blocks (34). The connecting blocks (34) and the inside of the equipment housing (11) are fitted with bolts (35).

6. The high-precision electric spindle temperature control and cooling structure according to claim 5, characterized in that: The bolt (35) is slidably connected to the connecting block (34), and the bolt (35) is threadedly connected to the equipment housing (11).

7. The high-precision electric spindle temperature control and cooling structure according to claim 6, characterized in that: A pull rod (36) is provided on one side of the baffle (31), and the pull rod (36) is fixedly connected to the baffle (31).