Main shaft lubricating mechanism for numerical control machine tool

Abstract

The utility model relates to the technical field of main shaft lubricating mechanisms, and discloses a main shaft lubricating mechanism for a numerical control machine tool, which comprises two shells, a plurality of frames and a main shaft, springs are uniformly and fixedly connected in the middles of the interiors of the two shells at intervals, and the other ends of the plurality of springs are fixedly connected with connecting plates; and oil storage pipes are fixedly connected to the end faces of one sides of the multiple connecting plates correspondingly, and oil cavities are formed in the multiple oil storage pipes correspondingly. When the mechanism is used, the oil storage pipe and the sponge strip at the upper end of the oil storage pipe are pushed by the spring to be close to the main shaft, so that the sponge strip guides lubricating oil in the oil storage pipe to the upper end of the main shaft for lubrication, and meanwhile, in the process that the sponge strip is pushed by the spring to be close to the main shaft, the screw on one side of the oil storage pipe is adjusted to be attached to the shell. Therefore, adaptation to spindles with different diameters is achieved, it is ensured that the lubricating mechanism can be widely applied to numerical control machine tool spindles with various specifications, and the universality and applicability of the mechanism are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of spindle lubrication mechanisms, and in particular to a spindle lubrication mechanism for CNC machine tools. Background Technology

[0002] In the high-precision, high-speed operation of CNC machine tools, the spindle, as a core component, directly affects the machining quality and production efficiency of the entire machine tool through its performance and stability. To ensure the normal operation of the spindle under long-term high-load operation, an efficient lubrication system must be used to reduce friction, lower temperature rise, extend spindle life, and improve machining accuracy.

[0003] In existing technologies, most CNC machine tool spindle lubrication mechanisms typically use sponge strips that adhere to the spindle to guide lubricating oil to the spindle for lubrication. However, existing mechanisms usually only fit a single spindle specification, which necessitates configuring different lubrication mechanisms for different spindle specifications, thereby reducing the versatility and applicability of the mechanism.

[0004] Therefore, those skilled in the art have provided a spindle lubrication mechanism for CNC machine tools to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a spindle lubrication mechanism for CNC machine tools. In operation, a spring pushes an oil reservoir and an upper sponge strip close to the spindle, allowing the sponge strip to guide the lubricating oil from the reservoir to the upper part of the spindle for lubrication. Simultaneously, as the spring pushes the sponge strip close to the spindle, a screw on one side of the oil reservoir is adjusted to engage with the housing, thus adapting to spindles of different diameters. This ensures the lubrication mechanism can be widely applied to CNC machine tool spindles of various specifications, improving its versatility and applicability.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A spindle lubrication mechanism for a CNC machine tool includes two housings, multiple frames, and a spindle. Springs are fixedly connected at even intervals in the middle of the interior of the two housings. Connecting plates are fixedly connected to the other ends of the multiple springs. Oil storage pipes are fixedly connected to one side of the multiple connecting plates. Oil chambers are opened inside the multiple oil storage pipes. Limiting blocks are fixedly connected to both sides of one side of the multiple connecting plates. Sponge strips are provided inside the multiple frames. Limiting plates are fixedly connected to the four corners of one side of the multiple frames. Positioning pins are provided through each pair of the multiple limiting plates, and the multiple positioning pins all pass through the limiting blocks.

[0008] Through the above technical solution, when in use, the mechanism uses a spring to push the oil reservoir tube and the upper sponge strip close to the spindle, so that the sponge strip guides the lubricating oil inside the oil reservoir tube to the upper end of the spindle for lubrication. At the same time, as the spring pushes the sponge strip close to the spindle, the screw on one side of the oil reservoir tube is adjusted to make the screw fit with the housing, thereby achieving adaptation to spindles of different diameters. This ensures that the lubrication mechanism can be widely used in CNC machine tool spindles of various specifications, improving the versatility and applicability of the mechanism.

[0009] Furthermore, each of the multiple oil storage pipes has a screw threaded onto one end, and multiple sliding grooves are provided on both sides of the two housings, and the multiple screws slide inside the sliding grooves.

[0010] The above technical solution enables the lubrication mechanism to flexibly adapt to spindles of different specifications, thus having higher versatility. Furthermore, after the oil reservoir is moved to a certain position, it can be tightly connected to the housing by rotating the screw, thereby stabilizing the oil reservoir and ensuring its stability during use.

[0011] Furthermore, auxiliary telescopic rods are fixedly connected to both sides of one end face of the plurality of connecting plates, and the other end of the plurality of auxiliary telescopic rods is fixedly connected to the housing;

[0012] The above technical solution provides additional support by fixing the telescopic rod to the housing, thereby increasing the stability of the entire lubrication mechanism.

[0013] Furthermore, a pin is provided through one end of each of the plurality of positioning pins;

[0014] By using the above technical solution, and by setting a pin at the through end of the positioning pin, the connection between the limit block and the limit plate is made more stable, avoiding loosening between components and improving the working accuracy and reliability of the equipment.

[0015] Furthermore, one end of each of the multiple sponge strips extends into the oil cavity inside the oil storage pipe, and the other end is in contact with the main shaft;

[0016] The above technical solution ensures that the lubricating oil can be effectively transferred to the spindle surface through the sponge strip, guaranteeing the uniformity of lubrication during spindle operation and avoiding local overheating or wear.

[0017] Furthermore, the two outer sides of the two housings are connected by a plurality of bolts and a plurality of nuts;

[0018] The above technical solutions ensure the robustness and stability of the casing, effectively prevent the components from loosening during long-term operation, and increase the overall structural strength.

[0019] Furthermore, one end of each of the plurality of oil storage pipes is fixedly connected to an oil delivery pipe;

[0020] The above technical solution ensures that lubricating oil is continuously supplied from the external oil supply equipment to the oil chamber of the oil storage pipe, avoiding insufficient lubrication due to insufficient oil or unstable supply, and ensuring that the spindle is always in a good lubrication state.

[0021] This utility model has the following beneficial effects:

[0022] 1. This utility model proposes a spindle lubrication mechanism for CNC machine tools. During use, a spring pushes an oil reservoir and an upper sponge strip close to the spindle, allowing the sponge strip to guide the lubricating oil from the reservoir to the upper end of the spindle for lubrication. Simultaneously, as the spring pushes the sponge strip close to the spindle, a screw on one side of the oil reservoir is adjusted to engage with the housing, thus adapting to spindles of different diameters. This ensures the lubrication mechanism can be widely applied to CNC machine tool spindles of various specifications, improving its versatility and applicability.

[0023] 2. This utility model proposes a spindle lubrication mechanism for CNC machine tools. During use, the limiting plate on the frame cooperates with the limiting block at the upper end of the connecting plate and is fixed by a positioning pin. This allows the frame to be stably connected to the upper end of the oil storage pipe, enabling the sponge strip inside the frame to stably guide the lubricating oil from inside the oil storage pipe to the upper end for lubrication. When the sponge strip has been used for a long time, it can be easily removed from the upper end of the oil storage pipe by simply removing the pin and pulling out the positioning pin. This facilitates inspection, cleaning, and replacement by maintenance personnel, reducing equipment downtime and repair costs caused by maintenance difficulties, improving production efficiency, and reducing labor intensity. Attached Figure Description

[0024] Figure 1 This is an overall isometric view of a spindle lubrication mechanism for CNC machine tools proposed in this utility model;

[0025] Figure 2 This is a partial isometric view of a spindle lubrication mechanism for CNC machine tools proposed in this utility model;

[0026] Figure 3 This is a cross-sectional view of a spindle lubrication mechanism for a CNC machine tool proposed in this utility model;

[0027] Figure 4 This is an isometric drawing of the oil reservoir of a spindle lubrication mechanism for a CNC machine tool proposed in this utility model;

[0028] Figure 5 This is a schematic diagram of the oil reservoir pipe and sponge strip of a spindle lubrication mechanism for CNC machine tools proposed in this utility model.

[0029] Legend:

[0030] 1. Housing; 2. Spring; 3. Connecting plate; 4. Oil reservoir pipe; 5. Limiting block; 6. Auxiliary telescopic rod; 7. Frame; 8. Sponge strip; 9. Limiting plate; 10. Positioning pin; 11. Pin; 12. Oil supply pipe; 13. Bolt; 14. Nut; 15. Main shaft; 16. Screw; 17. Sliding groove; 18. Oil chamber. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Reference Figure 1-5 The present invention provides a specific embodiment of a spindle lubrication mechanism for a CNC machine tool, comprising two housings 1, multiple frames 7, and a spindle 15. Springs 2 are fixedly connected at even intervals in the middle of the interior of the two housings 1. Connecting plates 3 are fixedly connected to the other ends of the multiple springs 2. Oil storage pipes 4 are fixedly connected to one side of the multiple connecting plates 3. Oil chambers 18 are opened inside the multiple oil storage pipes 4. Limiting blocks 5 are fixedly connected to both sides of one side of the multiple connecting plates 3. Sponge strips 8 are provided inside the multiple frames 7. Limiting plates 9 are fixedly connected to the four corners of one side of the multiple frames 7. Positioning pins 10 are provided through each pair of the multiple limiting plates 9, and the multiple positioning pins 10 pass through the limiting blocks 5.

[0033] When in use, the mechanism uses spring 2 to push the oil reservoir 4 and the upper sponge strip 8 close to the spindle 15, so that the sponge strip 8 guides the lubricating oil inside the oil reservoir 4 to the upper end of the spindle 15 for lubrication. At the same time, as the spring 2 pushes the sponge strip 8 close to the spindle 15, the screw 16 on one side of the oil reservoir 4 is adjusted to make the screw 16 fit with the housing 1, thereby achieving adaptation to spindles 15 of different diameters. This ensures that the lubrication mechanism can be widely used in CNC machine tool spindles 15 of various specifications, improving the versatility and applicability of the mechanism.

[0034] Multiple oil storage pipes 4 are threaded with screws 16 at one end. Multiple sliding grooves 17 are provided on both sides of the two housings 1, and the screws 16 slide within these grooves 17. This allows the lubrication mechanism to flexibly adapt to different specifications of spindles 15, providing greater versatility. Furthermore, after the oil storage pipe 4 moves to a certain position, the screws 16 can be rotated to tightly engage with the housing 1, thus stabilizing the oil storage pipe 4 and ensuring its stability during use. Multiple connecting plates 3 have auxiliary telescopic rods 6 fixedly connected to both sides of one side end. The other ends of the auxiliary telescopic rods 6 are fixedly connected to the housing 1. This fixed connection provides additional support and increases the stability of the entire lubrication mechanism. Multiple positioning pins 10 have pins 11 penetrating one end. By setting the pins 11 at the penetrating ends of the positioning pins 10, the connection between the limiting block 5 and the limiting plate 9 is ensured to be more secure. The system is designed to be more stable, preventing loosening between components and improving the working accuracy and reliability of the equipment. One end of each of the multiple sponge strips 8 extends into the oil cavity 18 inside the oil storage pipe 4, and the other end is attached to the spindle 15. This ensures that the lubricating oil can be effectively transferred to the surface of the spindle 15 through the sponge strips 8, ensuring uniform lubrication of the spindle 15 during operation and preventing local overheating or wear. The two outer sides of the housing 1 are connected by multiple bolts 13 and multiple nuts 14, ensuring the sturdiness and stability of the housing 1 and effectively preventing loosening of components during long-term operation, thus increasing the overall structural strength. One end of each of the multiple oil storage pipes 4 is fixedly connected to an oil supply pipe 12, ensuring that the lubricating oil is continuously supplied from the external oil supply equipment to the oil cavity 18 inside the oil storage pipe 4. This avoids insufficient lubrication due to insufficient oil or unstable supply, ensuring that the spindle 15 is always in a good lubrication state.

[0035] Working principle: When using this mechanism, the operator places two housings 1 on the outside of the main shaft 15 and connects the two housings 1 with bolts 13 and screws 16. At the same time as the housings 1 are connected, the spring 2 pushes the oil storage pipe 4 and the upper sponge strip 8 close to the main shaft 15. The sponge strip 8 guides the lubricating oil in the oil storage pipe 4 to the upper end of the main shaft 15 for lubrication. When the sponge strip 8 has been used for a long time, it can be removed from the upper end of the oil storage pipe 4 by removing the pin 11 and pulling out the positioning pin 10. This makes it convenient for maintenance personnel to inspect, clean and replace, reducing equipment downtime and maintenance costs caused by maintenance difficulties, thereby improving production efficiency and reducing labor intensity.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A spindle lubrication mechanism for a CNC machine tool, comprising two housings (1), multiple frames (7), and a spindle (15), characterized in that: Springs (2) are fixedly connected at even intervals in the middle of the interior of the two housings (1). A connecting plate (3) is fixedly connected to the other end of each of the multiple springs (2). An oil storage pipe (4) is fixedly connected to one side of each of the multiple connecting plates (3). An oil cavity (18) is opened inside each of the multiple oil storage pipes (4). Limiting blocks (5) are fixedly connected to both sides of one side of each of the multiple connecting plates (3). A sponge strip (8) is provided inside each of the multiple frames (7). A limiting plate (9) is fixedly connected to the four corners of one side of each of the multiple frames (7). A positioning pin (10) is provided through each pair of the multiple limiting plates (9), and the multiple positioning pins (10) all pass through the limiting blocks (5).

2. The spindle lubrication mechanism for CNC machine tools according to claim 1, characterized in that: One end of each of the multiple oil storage pipes (4) is threaded with a screw (16), and multiple sliding grooves (17) are provided on both sides of the two housings (1), and the multiple screws (16) slide inside their sliding grooves (17).

3. The spindle lubrication mechanism for CNC machine tools according to claim 1, characterized in that: Auxiliary telescopic rods (6) are fixedly connected to both sides of one end face of the multiple connecting plates (3), and the other end of the multiple auxiliary telescopic rods (6) is fixedly connected to the housing (1).

4. The spindle lubrication mechanism for CNC machine tools according to claim 1, characterized in that: One end of each of the locating pins (10) is provided with a pin (11).

5. A spindle lubrication mechanism for CNC machine tools according to claim 1, characterized in that: One end of each of the multiple sponge strips (8) extends into the oil cavity (18) inside the oil storage pipe (4), and the other end is attached to the main shaft (15).

6. The spindle lubrication mechanism for CNC machine tools according to claim 1, characterized in that: The two outer sides of the two housings (1) are connected by a plurality of bolts (13) and a plurality of nuts (14).

7. A spindle lubrication mechanism for CNC machine tools according to claim 1, characterized in that: One end of each of the multiple oil storage pipes (4) is fixedly connected to an oil delivery pipe (12).

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