Dustproof assembly for main shaft

Abstract

The utility model relates to the technical field of machine tools, and discloses a spindle dustproof assembly which comprises a box body, a mounting cover is arranged on one side of the box body, a spindle penetrates through the middle of the mounting cover, a dustproof sleeve corresponding to the spindle is arranged on one side of the mounting cover, an inclined plane is arranged at one end of the dustproof sleeve, and the included angle between the inclined plane and the horizontal plane ranges from 30 degrees to 60 degrees. A dust scraping cover is arranged at the position, located on the inclined face, of the dustproof sleeve, a lubricating oil cavity is formed between the dustproof sleeve and the main shaft, an oil distribution sleeve is arranged on the inner side of the lubricating oil cavity, ribs are arranged on the side edge of the oil distribution sleeve, elastic rods are arranged on the inner sides of the ribs, and a sealing gasket is arranged on the inner side of the end, away from the dust scraping cover, of the dustproof sleeve. The dustproof cover with the inclined face is arranged and can scrape the surface of the main shaft, meanwhile, the lubricating oil cavity is formed in the inner side of the dustproof cover and used for being filled with lubricating materials and lubricating the rotating position of the main shaft, dust is prevented from entering the dustproof cover, and the movement precision and reliability of the main shaft are effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tools, in particular to a main shaft dustproof component. Background Art

[0002] The spindle, generally referring to the machine tool spindle, is the axis on the machine tool that drives the workpiece or tool to rotate. The spindle components are usually composed of the spindle, bearings and transmission parts (gears or pulleys). In the machine, it is mainly used to support transmission parts such as gears and pulleys, transmit motion and torque, such as the machine tool spindle; some are used to clamp workpieces, such as mandrels. Except for machine tools such as planers and broaching machines whose main motion is linear motion, most machine tools have spindle components. The motion accuracy and structural rigidity of the spindle components are important factors that determine the processing quality and cutting efficiency.

[0003] The existing spindle has poor dustproof ability, and dust can easily enter from the gap between the spindle and the mounting sleeve, causing dust or debris to enter the sleeve, accelerating the wear of the bearing and the spindle, affecting the spindle motion accuracy, and shortening the service life of the spindle and bearings. Utility Model Content

[0004] The utility model aims to provide a spindle dustproof component, aiming to solve the problem of poor dustproof ability of the existing spindle.

[0005] The utility model is implemented as follows: a spindle dustproof component comprises a box body, a mounting cover is provided on one side of the box body, a spindle passes through the middle of the mounting cover, a dust cover corresponding to the spindle is provided on one side of the mounting cover, an inclined surface is provided at one end of the dust cover, and the angle between the inclined surface and the horizontal plane is 30° to 60°; a dust scraper cover is provided at the inclined surface of the dust cover, a lubricating oil cavity is provided between the dust cover and the spindle, a cloth oil cover is provided on the inner side of the lubricating oil cavity, ribs are provided on the side of the cloth oil cover, an elastic rod is provided on the inner side of the ribs, and a sealing gasket is provided on the inner side of one end of the dust cover away from the scraper cover.

[0006] Preferably, the mounting cover is connected to the box body via bolts, and the dust cover is fixedly connected to the mounting cover.

[0007] Preferably, the main shaft is rotatably connected to the dust cover, and the lubricating oil cavity is filled with lubricating oil.

[0008] Preferably, an oil plug is provided on the upper side of the dust cover, an oil filling channel is opened on the inner wall of the dust cover, and the oil filling channel is communicated with the lubricating oil chamber.

[0009] Preferably, the oil sleeve is made of sponge, and the elastic rod is made of spring steel.

[0010] Preferably, the scraper cover is rotatably connected to the main shaft, and an oil seepage gap is provided between the scraper cover and the main shaft.

[0011] The utility model discloses a spindle dustproof component with the beneficial effects that: the utility model is provided with a dustproof cover with an inclined surface, which can be used to scrape the surface of the spindle, and at the same time a lubricating oil cavity is provided on the inner side of the dustproof cover for filling lubricating material to lubricate the rotating part of the spindle and prevent dust from entering, thereby effectively ensuring the movement accuracy and reliability of the spindle. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the three-dimensional structure of a main shaft dustproof component proposed by the utility model;

[0013] Figure 2 It is a partial cross-sectional three-dimensional structural schematic diagram of a spindle dustproof component proposed by the utility model;

[0014] Figure 3 for Figure 2 A local enlarged schematic diagram of the middle A;

[0015] Figure 4 This is a schematic diagram of the main cross-sectional structure of a spindle dustproof component proposed by the utility model.

[0016] Marking Description:

[0017] 1. Box body; 2. Mounting cover; 3. Dust cover; 4. Dust scraper cover; 5. Spindle; 6. Oil plug;

[0018] 31. Sealing gasket;

[0019] 51. Oil cover; 52. Ribs; 53. Elastic rod;

[0020] 61. Oil filling channel. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0022] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of the present utility model, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on the present utility model. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0023] The implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0024] In this embodiment:

[0025] Reference Figure 1-4 As shown, a preferred embodiment of the utility model is provided.

[0026] The spindle dustproof assembly of this embodiment includes a box body 1, which is the main structure of the equipment box body 1 and other components. A mounting cover 2 is provided on one side of the box body 1. The mounting cover 2 is connected to the box body 1 by bolts to improve the connection strength. A spindle 5 runs through the middle of the mounting cover 2 and is rotatably connected therebetween. A dust cover 3 corresponding to the spindle 5 is provided on one side of the mounting cover 2. The dust cover 3 is used to prevent dust and lubricate the rotating part of the spindle 5. The dust cover 3 is fixedly connected to the mounting cover 2. An inclined surface is provided at one end of the dust cover 3. The angle between the inclined surface and the horizontal plane is 30° to 60°. Under normal circumstances, a 45° angle can be selected. When the dust is large, a 3° angle can be selected. 0° angle increases the area of ​​the upper surface of the main shaft 5 covered by the dust cover 3. When the main shaft 5 rotates at a faster speed, a 60° angle can be selected. The inclined surface is close to the vertical direction, and the contact area formed by the intersection with the main shaft 5 is reduced, ensuring the stable rotation of the main shaft 5 and avoiding uneven force during high-speed rotation. At the same time, due to the high speed, the dust cleaning effect is good, so the inclined surface does not need to be inclined at a large angle. In addition, the inclination direction of the inclined surface can be adjusted as needed to carry out targeted dust resistance and improve practicality. When dust is generated near the dust cover 3 of the main shaft 5, the structure of the dust cover 3 can reduce the dust from falling on the main shaft 5, ensuring the cleanliness of the rotating part.

[0027] In addition, the dust cover 3 is provided with a dust scraper cover 4 at the inclined surface, so the dust scraper cover 4 is also inclined to scrape the dust on the surface of the spindle 5. According to the rotation speed of the spindle 5 and the working environment, inclined surfaces with different inclination degrees can be selected to improve the dust prevention reliability and stability. During the rotation of the spindle 5, the dust on the spindle 5 near the dust scraper cover 4 will also be scraped off;

[0028] Furthermore, a lubricating oil chamber is provided between the dust cover 3 and the main shaft 5, and the main shaft 5 and the dust cover 3 are rotatably connected. The lubricating oil chamber is filled with lubricating oil for lubricating the rotating part of the main shaft 5 and sealing the rotating part to prevent dust from entering and affecting the rotation reliability. An oil plug 6 is provided on the upper side of the dust cover 3, and an oil filling channel 61 is provided on the inner wall of the dust cover 3. The oil filling channel 61 is connected to the lubricating oil chamber. Lubricating oil can be added to the oil filling channel 61 by opening the oil plug 6 to ensure long-term stable operation of the equipment. An oil cloth sleeve 51 is provided on the inner side of the lubricating oil chamber to enable the lubricating oil to be evenly applied to the side curved surface of the main shaft 5. The oil cloth sleeve 51 also has an oil storage function. Ribs 52 are provided on the side of the oil cloth sleeve 51, and elastic rods 53 are provided on the inner side of the ribs 52 to improve the overall strength of the oil cloth sleeve 51 and avoid deformation or distortion that affects the oiling effect of the oil cloth sleeve 51. The oil cloth sleeve 51 is made of sponge, and the elastic rods 53 are provided on the inner side of the ribs 52 to improve the overall strength of the oil cloth sleeve 51 and avoid deformation or distortion that affects the oiling effect of the oil cloth sleeve 51. The oil cloth sleeve 51 is made of sponge, and the elastic rods 53 are provided on the inner side of the ribs 52. The material is spring steel, and a sealing gasket 31 is provided on the inner side of one end of the dust cover 3 away from the scraper cover 4 to prevent lubricating oil from entering the housing 1 and reduce lubricating oil loss. One end of the elastic rod 53 is fixedly connected to the sealing gasket 31. When the main shaft 5 rotates, there is stickiness between the oil cover 51 and the main shaft 5. After the main shaft 5 drives the oil cover 51 to twist a certain angle, the lubricating oil is squeezed to realize the movement of the lubricating oil. Because the elastic rod 53 is fixedly connected to the rib 52, and the rib 52 and the oil cover 51 are integrally formed, therefore, after the main shaft 5 drives the oil cover 51 to twist a certain angle, the oil cover 51 will return to the right position under the action of the elastic rod 53, and the rotation of the main shaft 5 generates centrifugal force, causing the lubricating oil to be thrown out, and uniform oil distribution is achieved through the oil storage and squeezing of the oil cover 51. When dust enters the lubricating oil cavity of the oil cover 51, the oil cover 51 can be used to absorb dust to prevent it from entering the inside of the chassis body 1.

[0029] It is worth noting that the scraper cover 4 is rotatably connected to the main shaft 5, and an oil seepage gap is provided between the scraper cover 4 and the main shaft 5. The lubricating oil forms an oil film in the oil seepage gap to prevent dust from entering while ensuring the lubrication effect. At the same time, because the scraper cover 4 is tilted, dust and dirty lubricating oil can be scraped off to prevent dust from entering and causing wear between the main shaft 5 and the bearing sleeve, thereby improving the working reliability of the equipment.

[0030] In this embodiment, the operator opens the oil plug 6 and adds lubricating oil to the lubricating oil chamber through the oil filling channel 61. According to the working environment, grease can be selected to replace the lubricating oil, which reduces the number of times the lubricating oil is added and reduces the pollution of the lubricating oil to the outside world, thereby achieving environmental protection. When the equipment is working, the main shaft 5 rotates, and the lubricating oil or grease lubricates the rotating part. When the main shaft 5 rotates at a faster speed, the oil cloth sleeve 51 will be driven to twist, thereby squeezing the lubricating oil. The elastic rod 53 drives the oil cloth sleeve 51 to return to the original position, so that the oil cloth sleeve 51 can move, avoid the problem of hardening, and ensure the lubrication effect of the main shaft 5. At the same time, the oil cloth sleeve 51 is made of sponge material, which is porous and can store oil, thereby improving the lubrication effect of the lubricating oil.

[0031] After being idle for a period of time, dust may be present on the surface of the spindle 5 due to untimely cleaning. Even after cleaning, dust may still remain in dead corners and gaps. The spindle 5 may be rotated slowly, and the dust scraper cover 4 may scrape off the dust near the dust cover 3 of the spindle 5 to prevent dust from entering the housing 1. The oil plug 6 may be opened, and lubricating oil may be added to the lubricating oil chamber through the oil filling channel 61. At the same time, pressurization may be applied, and the dust scraper cover 4 may seep oil out to squeeze out dust and dirt, thereby effectively preventing dust from polluting and interfering with the rotation of the spindle 5, ensuring the motion accuracy of the spindle 5 during rotation, and reducing the wear of rotating parts, thereby greatly improving the service life of the equipment.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0033] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0034] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps described in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

Claims

1. A spindle dustproof assembly, comprising a box, characterized in that: A mounting cover is provided on one side of the box body, a main shaft runs through the middle of the mounting cover, a dust cover corresponding to the main shaft is provided on one side of the mounting cover, an inclined surface is provided at one end of the dust cover, and the angle between the inclined surface and the horizontal plane is 30° to 60°; The dust cover is provided with a scraper cover at the inclined surface, a lubricating oil cavity is provided between the dust cover and the main shaft, a cloth oil cover is provided inside the lubricating oil cavity, ribs are provided on the side of the cloth oil cover, an elastic rod is provided inside the ribs, and a sealing gasket is provided inside the end of the dust cover away from the scraper cover.

2. A spindle dustproof assembly according to claim 1, characterized in that: The installation cover is connected to the box body via bolts, and the dust cover is fixedly connected to the installation cover.

3. A spindle dustproof assembly according to claim 1, characterized in that: The main shaft is rotatably connected to the dust cover, and the lubricating oil cavity is filled with lubricating oil.

4. A spindle dustproof assembly according to claim 3, characterized in that: An oil plug is arranged on the upper side of the dust cover, an oil injection channel is opened on the inner wall of the dust cover, and the oil injection channel is communicated with the lubricating oil cavity.

5. A spindle dustproof assembly according to claim 1, characterized in that: The material of the oil cloth sleeve is sponge, and the material of the elastic rod is spring steel.

6. A spindle dustproof assembly according to claim 1, characterized in that: The scraper cover is rotatably connected to the main shaft, and an oil seepage gap is arranged between the scraper cover and the main shaft.

Images