A lubricating oil supply device for a numerical control machine tool

By designing a CNC machine tool lubrication oil supply device with a rotating plate and extension tube structure, the problem of difficult lubrication oil addition was solved, enabling rapid replenishment and impurity filtration, thereby improving the machine tool's operating efficiency and precision.

CN224575238UActive Publication Date: 2026-07-31HUANGGANG POLYTECHNIC COLLEGE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUANGGANG POLYTECHNIC COLLEGE
Filing Date
2025-06-20
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

Adding lubricating oil to existing CNC machine tools is difficult and wasteful. Furthermore, the performance of the lubricating oil deteriorates after prolonged use, affecting the accuracy and lifespan of the machine tool.

Method used

A lubricating oil supply device for CNC machine tools was designed, including a rotating plate and an extension tube structure. The oil inlet is enlarged by the cooperation of torsion spring and spring to facilitate the tilting of the lubricating oil bottle, and a filter screen frame is installed in the oil inlet tube to block impurities.

Benefits of technology

It enables rapid addition of lubricating oil and filtration of impurities, avoiding lubricating oil waste and internal contamination of the machine tool, and ensuring the efficient operation of the machine tool.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model belongs to the field of CNC machine tool technology, specifically a CNC machine tool lubricating oil supply device. It includes a CNC machine tool body, a housing fixedly mounted on one side of the machine tool body, an end cover rotatably connected to the top of the housing, an oil dispenser fixedly mounted inside the housing, and an oil inlet pipe connected to the interior of the oil dispenser fixedly mounted on its top. Through its designed structure, when adding lubricating oil to the CNC machine tool body, the oil inlet pipe of the oil dispenser extends, and the oil inlet port expands as it extends. This eliminates the need to insert a bottle containing lubricating oil into the housing, allowing for convenient and quick pouring of lubricating oil without worrying about overflow due to excessive flow.
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Description

Technical Field

[0001] This utility model belongs to the field of CNC machine tool technology, specifically a CNC machine tool lubricating oil supply device. Background Technology

[0002] Lubricating oil for CNC machine tools is a key functional fluid that ensures the normal operation of all moving parts of the machine tool. It is mainly used to reduce mechanical wear, lower frictional heat, prevent rust and corrosion, and flush away impurities. The lubricating oil forms an oil film between moving parts, reducing the coefficient of friction (for example, the oil film thickness on guideways can reach several micrometers to tens of micrometers), thus reducing wear caused by direct metal-to-metal contact. Its performance directly affects the accuracy, lifespan, and machining efficiency of the machine tool.

[0003] After prolonged operation, the lubricating oil inside a machine tool will experience a decline in its lubricating effect, such as decreased cooling performance and loss of cleaning ability. Therefore, it is necessary to regularly replace and replenish the lubricating oil into the oiler. However, when adding lubricating oil to the machine tool's oiler, the oiler is often located inside the machine tool, which contains many complex internal components. Furthermore, the oil inlet of the oiler is often designed to be small, making it difficult for operators to pour in the lubricating oil and easily leading to leakage and waste.

[0004] Therefore, this utility model provides a lubricating oil supply device for CNC machine tools. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The CNC machine tool lubricating oil supply device of this utility model includes a CNC machine tool body, a housing is fixedly installed on one side of the CNC machine tool body, an end cover is rotatably connected to the top of the housing, an oiler is fixedly installed inside the housing, and an oil inlet pipe communicating with the inside is fixedly installed on the top of the oiler; an extension pipe is slidably connected inside the oil inlet pipe, and a plurality of rotating plates are rotatably connected to the top of the extension pipe by a torsion spring, and a connecting cloth is fixedly installed on the side of the plurality of rotating plates that are close to each other. The connecting cloth is made of waterproof material, and an arc-shaped groove is opened on the top of the rotating plate.

[0007] Furthermore, the rotating plate is provided with two arc-shaped support plates, and an arc-shaped pad is fixedly installed on one side of the support plate. The pad is made of anti-slip material, and both the support plate and the pad are located in the groove.

[0008] Furthermore, the rotating plate has two storage slots, and a sliding rod is slidably connected inside the storage slot via a first spring. The end of the sliding rod away from the first spring is fixedly connected to the support plate.

[0009] Furthermore, the rotating plate has an arc-shaped design, and several flexible rolling balls are wedged on one side of the rotating plate.

[0010] Furthermore, two symmetrically arranged rectangular grooves are formed inside the oil inlet pipe, and a rectangular block is slidably connected inside the rectangular groove. One end of the rectangular block is fixedly connected to the extension pipe, and a second spring is fixedly installed inside the rectangular groove. One end of the second spring is fixedly connected to the rectangular block.

[0011] Furthermore, one side of the oil inlet pipe has a through groove that communicates with the interior, and a filter frame made of flexible material is snapped into the inside of the through groove. A pull rod is fixedly installed on one side of the filter frame.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. This utility model discloses a CNC machine tool lubricating oil supply device. Several rotating plates rotate in a direction away from each other under the action of torsion springs, thereby expanding the port of the extension tube. As the rotating plates open, the connecting cloth between them also opens, bridging the gaps between the plates. A bottle containing lubricating oil is placed on the groove of the rotating plate, so that the bottle's port rests on a support plate and a pad. The anti-slip pad increases friction and fixes the bottle's port to the left and right. Through this designed structure, when adding lubricating oil to the CNC machine tool body, the oil inlet pipe extends, and the inlet port expands as it extends. This allows for convenient and quick pouring of lubricating oil without needing to insert the bottle into the machine housing, and also eliminates concerns about overflow due to excessive flow. When using the extension tube and rotating plate, simply push the extension tube into the oil inlet pipe. At this time, the tilted rotating plate will be squeezed and rotated to reset and gather under the cooperation of several rolling balls and the oil inlet pipe port, so that it can easily follow the extension tube into the oil inlet pipe for storage for the next use.

[0014] 2. The CNC machine tool lubricating oil supply device of this utility model allows the extension tube to slide away from the oil inlet pipe after the cover is removed, under the action of the second spring and the rectangular block, thus achieving automatic sliding and facilitating the addition of lubricating oil. Simultaneously, a filter frame is installed inside the oil inlet pipe to reduce impurities from entering the oiler with the lubricating oil. Since the CNC machine tool is used in the factory and contains many machine tools and processes numerous metal parts, resulting in a large amount of iron filings and impurities, the filter frame prevents these impurities from entering the oiler with the lubricating oil. The blocked impurities are collected at the filter frame, and after the lubricating oil is added, the filter frame can be removed for cleaning, thus ensuring efficient subsequent lubricating oil addition. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Figure 1 This is a three-dimensional structural diagram of the CNC machine tool body in this utility model;

[0017] Figure 2 This is a structural schematic diagram of the chassis in this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the oil inlet pipe in this utility model;

[0019] Figure 4 This is a cross-sectional view of the oil inlet pipe in this utility model;

[0020] Figure 5 This is a schematic diagram of the rotating plate in this utility model.

[0021] In the diagram: 1. CNC machine tool body; 2. Machine housing; 3. End cover; 4. Oiler; 5. Oil inlet pipe; 6. Extension pipe; 7. Rotating plate; 8. Connecting cloth; 9. Groove; 10. Support plate; 11. Gasket; 12. Storage slot; 13. Slide rod; 14. First spring; 15. Ball bearing; 16. Rectangular groove; 17. Rectangular block; 18. Second spring; 19. Through groove; 20. Filter screen frame; 21. Pull rod. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] like Figures 1 to 5 As shown in the embodiment of this utility model, a CNC machine tool lubricating oil supply device includes a CNC machine tool body 1. A housing 2 is fixedly installed on one side of the CNC machine tool body 1. An end cover 3 is rotatably connected to the top of the housing 2. An oiler 4 is fixedly installed inside the housing 2. An oil inlet pipe 5 communicating with the inside is fixedly installed on the top of the oiler 4. An extension pipe 6 is slidably connected inside the oil inlet pipe 5. A plurality of rotating plates 7 are rotatably connected to the top of the extension pipe 6 by a torsion spring. A connecting cloth 8 is fixedly installed on the side of the plurality of rotating plates 7 that is close to each other. The connecting cloth 8 is made of waterproof material. An arc-shaped groove 9 is opened on the top of the rotating plate 7.

[0024] Specifically, the rotating plate 7 has two arc-shaped support plates 10, and an arc-shaped pad 11 is fixedly installed on one side of each support plate 10. The pad 11 is made of a non-slip material, and both the support plate 10 and the pad 11 are located within the groove 9. The rotating plate 7 has two storage slots 12, and a sliding rod 13 is slidably connected to the inside of each storage slot 12 via a first spring 14. The end of the sliding rod 13 away from the first spring 14 is fixedly connected to the support plate 10. The rotating plate 7 has an arc-shaped design, and several flexible rolling balls 15 are wedged onto one side of the rotating plate 7.

[0025] During operation, when the CNC machine tool body 1 lacks lubricating oil, the buzzer inside the oiler 4 will sound an alarm, prompting the operator to replenish the lubricating oil. At this time, by opening the end cover 3 of the machine housing 2 and unscrewing the cap on the oil inlet pipe 5, the oil inlet pipe 5 is opened, and the extension pipe 6 is slid, causing the extension pipe 6, along with several rotating plates 7 and connecting cloths 8, to slide away from the oil inlet pipe 5. Once the rotating plates 7 slide out of the oil inlet pipe 5 and are no longer restricted, the several rotating plates 7 rotate away from each other under the action of torsion springs, thereby widening the opening of the extension pipe 6. Furthermore, as the rotating plates 7 rotate and open, the connecting cloths 8 between the rotating plates 7 also open accordingly, effectively filling the gaps between the rotating plates 7.

[0026] A bottle containing lubricating oil is placed on the groove 9 of the rotating plate 7, so that the end of the bottle rests on the support plate 10 and the pad 11. The anti-slip pad 11 increases friction and fixes the bottle end from left to right. The support plate 10, connected by the first spring 14 and the slide rod 13, serves to accommodate the bottle. The lubricating oil in the bottle is poured into the rotating plate 7. The tilted rotating plate 7 guides the lubricating oil, and the connecting cloth 8 prevents lubricating oil leakage. This ensures that the poured lubricating oil flows quickly into the oiler 4 through the extension pipe 6 and the oil inlet pipe 5, thereby quickly replenishing the lubricating oil for the CNC machine tool body 1.

[0027] Through the above-described structure, when adding lubricating oil to the CNC machine tool body 1, the oil inlet pipe 5 of the oiler 4 extends, and the oil inlet port expands as it extends. This allows for convenient and quick pouring of lubricating oil without needing to insert the bottle containing the lubricating oil into the machine housing 2, and also eliminates concerns about overflow due to excessive flow. During use, the extension pipe 6 and rotating plate 7 are simply pushed into the oil inlet pipe 5. The tilted rotating plate 7, in conjunction with several rolling balls 15 and the port of the oil inlet pipe 5, is then compressed, rotated, and reset, allowing it to easily follow the extension pipe 6 into the oil inlet pipe 5 for storage and future use.

[0028] Two symmetrically arranged rectangular grooves 16 are formed inside the oil inlet pipe 5. A rectangular block 17 is slidably connected inside the rectangular groove 16. One end of the rectangular block 17 is fixedly connected to the extension pipe 6. A second spring 18 is fixedly installed inside the rectangular groove 16. One end of the second spring 18 is fixedly connected to the rectangular block 17. A through groove 19 communicating with the interior is formed on one side of the oil inlet pipe 5. A filter frame 20 made of flexible material is snapped into the through groove 19. A pull rod 21 is fixedly installed on one side of the filter frame 20.

[0029] During operation, when the cap of the oil inlet pipe 5 is removed (the cap is threaded to the oil inlet pipe 5), the extension pipe 6 is unrestricted and slides away from the oil inlet pipe 5 under the action of the second spring 18 and the rectangular block 17, thus achieving automatic sliding for easy addition of lubricating oil. Simultaneously, a filter frame 20 is installed inside the oil inlet pipe 5 to reduce impurities from entering the oiler 4 along with the lubricating oil. Since the CNC machine tool body 1 is used in the factory and contains many machine tools that process metal parts, there is a significant amount of iron filings and impurities. The filter frame 20 prevents these impurities from entering the oiler 4 with the lubricating oil. The blocked impurities are collected at the filter frame 20, and after lubricating oil addition is complete, the filter frame 20 is removed for cleaning, ensuring efficient subsequent lubricating oil addition.

[0030] Working Principle: When the CNC machine tool body 1 lacks lubricating oil, the buzzer inside the oiler 4 will sound an alarm, prompting the operator to replenish the lubricating oil. At this time, by opening the end cover 3 of the machine housing 2 and unscrewing the cap on the oil inlet pipe 5, the oil inlet pipe 5 is opened, and the extension pipe 6 is slid, causing the extension pipe 6, along with several rotating plates 7 and connecting cloths 8, to slide away from the oil inlet pipe 5. Once the rotating plates 7 slide out of the oil inlet pipe 5, they are no longer restricted, and under the action of torsion springs, they rotate in opposite directions, thus widening the port of the extension pipe 6. As the rotating plates 7 rotate and open, the connecting cloths 8 between them also open, filling the gaps between the rotating plates 7. A bottle containing lubricating oil is placed on the groove 9 of the rotating plate 7, so that the port of the bottle rests on the support plate 10 and the gasket 11. The anti-slip gasket 11 increases friction and fixes the left and right sides of the bottle port. The support plate 10, connected by the first spring 14 and the slide rod 13, serves to accommodate the bottle. The lubricating oil in the bottle is poured into the rotating plate 7. The tilted rotating plate 7 guides the lubricating oil, and the connecting cloth 8 prevents the lubricating oil from leaking out. This allows the poured lubricating oil to quickly flow into the oiler 4 through the extension pipe 6 and the oil inlet pipe 5, thereby quickly replenishing the lubricating oil for the CNC machine tool body 1.

[0031] When the cap of the oil inlet pipe 5 is removed, the extension pipe 6 is unrestricted and slides away from the oil inlet pipe 5 under the action of the second spring 18 and the rectangular block 17, thus achieving automatic sliding for easy addition of lubricating oil. At the same time, a filter screen frame 20 is installed inside the oil inlet pipe 5 to reduce impurities from entering the oiler 4 along with the lubricating oil.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A CNC machine tool lubricating oil supply device, comprising a CNC machine tool body (1), a housing (2) fixedly installed on one side of the CNC machine tool body (1), an end cover (3) rotatably connected to the top of the housing (2), an oiler (4) fixedly installed inside the housing (2), and an oil inlet pipe (5) connected to the inside fixedly installed on the top of the oiler (4). characterized in that The oil inlet pipe (5) is slidably connected to an extension pipe (6). The top of the extension pipe (6) is rotatably connected to several rotating plates (7) by a torsion spring. A connecting cloth (8) is fixedly installed on the side of the several rotating plates (7) that are close to each other. The connecting cloth (8) is made of waterproof material. An arc-shaped groove (9) is opened on the top of the rotating plate (7).

2. A lubricating oil supply device for a numerically controlled machine tool according to claim 1, characterized in that: The rotating plate (7) is provided with two arc-shaped support plates (10). An arc-shaped pad (11) is fixedly installed on one side of the support plate (10). The pad (11) is made of anti-slip material. The support plate (10) and the pad (11) are both located in the groove (9).

3. A lubricating oil supply device for a numerically controlled machine tool according to claim 2, characterized in that: The rotating plate (7) has two storage slots (12). The inside of the storage slots (12) is slidably connected to a slide rod (13) via a first spring (14). The end of the slide rod (13) away from the first spring (14) is fixedly connected to the support plate (10).

4. A lubricating oil supply device for a numerically controlled machine tool according to claim 1, characterized in that: The rotating plate (7) is arc-shaped, and a number of flexible rolling balls (15) are wedged on one side of the rotating plate (7).

5. A lubricating oil supply device for a numerically controlled machine tool according to claim 1, characterized in that: Two symmetrically arranged rectangular grooves (16) are provided in the oil inlet pipe (5). A rectangular block (17) is slidably connected in the rectangular groove (16). One end of the rectangular block (17) is fixedly connected to the extension pipe (6). A second spring (18) is fixedly installed in the rectangular groove (16). One end of the second spring (18) is fixedly connected to the rectangular block (17).

6. A lubricating oil supply device for a numerically controlled machine tool according to claim 1, characterized in that: The oil inlet pipe (5) has a through groove (19) on one side that is connected to the inside. A filter screen frame (20) made of flexible material is snapped into the inside of the through groove (19). A pull rod (21) is fixedly installed on one side of the filter screen frame (20).