Ultrahigh-precision machine tool bearing

Abstract

The ultrahigh-precision machine tool bearing comprises an output mechanism, a rotating rod is fixedly mounted at the output end of the output mechanism, a mounting panel is rotatably connected to the outer wall of the rotating rod, an ultrahigh-precision machine tool bearing body is mounted in a fixing sleeve, the outer wall of the rotating rod is sleeved with a moving sleeve, and the moving sleeve is pushed towards the direction of the fixing sleeve; when the end of the first sealing rod makes contact with and extrudes the side wall of the fixing sleeve, the first sealing rod drives the second magnetic ring to slide towards the interior of the air pipe, and due to the fact that the first sealing rod and the second sealing rod slide in the air pipe in a sealed mode, under limitation, the first sealing rod sliding towards the interior of the air pipe pushes air in the air pipe; the second sealing rod slides towards the outer portion of the air pipe, the second sealing rod drives the sealing ring to slide along with the second sealing rod, the sealing ring is arranged on the outer wall of the fixed sleeve and the outer wall of the movable sleeve in a sleeving mode, and when the sealing ring is arranged at the joint of the fixed sleeve and the movable sleeve in a sleeving mode, the screw is arranged in the connecting plate in a sleeving mode and is in threaded connection with the nut.

Description

Technical Field

[0001] This invention relates to the field of ultra-high precision machine tool bearings, specifically to an ultra-high precision machine tool bearing. Background Technology

[0002] Bearings are an important component in modern mechanical equipment. Their main function is to support rotating mechanical bodies, reduce the coefficient of friction during their movement, and ensure their rotational accuracy. Ultra-high precision machine tool bearings are specially designed high-precision mechanical components used to reduce friction and support mechanical movement in machine tool applications that require extremely high precision and speed, and can meet the needs of high-speed, high-precision machine tool spindles.

[0003] Existing ultra-high precision machine tool bearings have stringent environmental requirements during use. They are often sealed with sealing rings, but some small foreign objects can still seep into the bearing, affecting its precision and lifespan over time.

[0004] Therefore, we propose an ultra-high precision machine tool bearing that can provide all-round protection for ultra-high precision machine tool bearings, prevent foreign objects from penetrating into the bearing, and improve the bearing's precision and service life. Summary of the Invention

[0005] The purpose of this invention is to provide an ultra-high precision machine tool bearing to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an ultra-high precision machine tool bearing, including an output mechanism, a rotating rod fixedly installed at the output end of the output mechanism, a mounting panel rotatably connected to the outer wall of the rotating rod, and a processing component disposed on the outside of the output mechanism, the processing component including a sealing component disposed on the outside of the output mechanism, an auxiliary component disposed on the outside of the sealing component, and a protective component disposed on the outside of the auxiliary component.

[0007] According to the above technical solution, the sealing assembly includes a fixed sleeve fixedly installed on the outer wall of the output mechanism. A high-precision machine tool bearing body is fitted inside the fixed sleeve. A nut is provided on the outer side of the fixed sleeve, and a screw is threaded into the nut. A connecting plate is fitted on the outer wall of the screw. A movable sleeve is fixedly installed on the outer wall of the connecting plate. An air pipe is fixedly installed inside the movable sleeve. A first magnetic ring is fixedly installed on the inner wall of the air pipe. A second magnetic ring is slidably installed inside the air pipe. A first sealing rod is fixedly installed on the side of the second magnetic ring away from the first magnetic ring. A second sealing rod is slidably installed at the end of the air pipe away from the first sealing rod. A sealing ring is fixedly installed at the end of the second sealing rod. An annular groove is formed on the outer wall of the fixed sleeve, and an annular ring is fixedly installed on the side wall of the movable sleeve.

[0008] According to the above technical solution, the auxiliary component includes a fixed ring fixedly installed on the side wall of the movable sleeve, a movable ring slidably disposed inside the fixed ring, a small retaining ring fixedly installed on the inner wall of the movable ring, a large retaining ring disposed near the side of the movable sleeve on the small retaining ring, a sliding rod slidably disposed inside the large retaining ring, a spring sleeved on the outer wall of the sliding rod, a push ring fixedly installed at the end of the sliding rod, and a sealing bolt sleeved on the outer wall of the movable ring.

[0009] According to the above technical solution, the protective component includes a first mounting rod sleeved on the outer wall of the output mechanism, a first mounting block sleeved on the outer wall of the first mounting rod, a first protective sleeve fixedly mounted on the outer wall of the first mounting block, a first limiting ring fixedly mounted on the outer wall of the first protective sleeve, a second protective sleeve slidably mounted on the outer wall of the first limiting ring, a second limiting ring fixedly mounted on the inner wall of the second protective sleeve, a second mounting block fixedly mounted on the outer wall of the second protective sleeve, and a second mounting rod sleeved inside the second mounting block.

[0010] According to the above technical solution, the second magnetic ring and the first magnetic ring are magnetically repulsive. The first sealing rod and the second sealing rod slide in a sealed manner with the trachea. When the first sealing rod is not squeezed, under the restriction of the magnetic repulsion between the second magnetic ring and the first magnetic ring, the second magnetic ring and the first sealing rod are pushed towards the outside of the trachea. The first sealing rod draws gas from inside the trachea, causing the second sealing rod to slide into the trachea.

[0011] According to the above technical solution, the sealing ring is slidably disposed with the outer wall of the movable sleeve, and the sealing ring is sleeved with the fixed sleeve. Under the restriction of the sealing ring, the gap at the connection between the fixed sleeve and the movable sleeve can be sleeved to improve the sealing effect.

[0012] According to the above technical solution, the nut is fixedly installed on the outer wall of the output mechanism, and the air pipe is threaded onto the nut. Under the restriction of the connection between the nut and the air pipe, the movable sleeve and the fixed sleeve can be restricted to protect the ultra-high precision machine tool bearing body.

[0013] According to the above technical solution, the outer wall of the push ring slides in a sealed manner with the inside of the moving ring, and the inner wall of the push ring slides in a sliding manner with the outer wall of the rotating rod. Under the restriction of the sliding push ring, the contaminated oil inside the moving ring can be pushed and cleaned.

[0014] According to the above technical solution, the end of the slide rod away from the push ring is fixedly installed with the side wall of the movable sleeve, and the end of the spring is fixedly installed with the side wall of the movable sleeve and the side of the large retaining ring away from the small retaining ring respectively. Under the elastic action of the spring, the movable ring that is not pushed can be reset.

[0015] According to the above technical solution, the second protective sleeve is slidably disposed inside the outer wall of the first limiting ring, and the second limiting ring is slidably disposed inside the outer wall of the first protective sleeve. Under the restriction of the first limiting ring and the second limiting ring, the first protective sleeve and the second protective sleeve are prevented from falling off.

[0016] Compared with the prior art, the beneficial effects achieved by the present invention are: 1. The present invention relates to an ultra-high precision machine tool bearing, which comprises a sealing assembly as one component. When the ultra-high precision machine tool bearing body is in use, the operating environment is demanding, and it is often sealed with a sealing ring. However, some small foreign objects can still seep into the interior of the ultra-high precision machine tool bearing body, affecting its precision and lifespan over time. Therefore, sealing is necessary. The ultra-high precision machine tool bearing body is installed inside a fixed sleeve, and a movable sleeve is fitted onto the outer wall of the rotating rod and pushed towards the fixed sleeve. When the end of the first sealing rod contacts and presses against the side wall of the fixed sleeve, the first sealing rod causes the second magnetic ring to slide into the air tube. Due to the sliding seal between the first and second sealing rods and the air tube, the first sealing rod sliding into the air tube pushes the gas inside the air tube, causing the second sealing rod to slide outwards. The second sealing rod then causes the sealing ring to slide accordingly, thus sealing the ring... The sealing ring is fitted onto the outer walls of the fixed sleeve and the movable sleeve. When the sealing ring is fitted onto the connection between the fixed sleeve and the movable sleeve, the screw is fitted inside the connecting plate and threadedly connected to the nut. Under the protection of the fixed sleeve and the movable sleeve, the ultra-high precision machine tool bearing body is sealed, preventing foreign objects from entering the ultra-high precision machine tool bearing body and affecting its accuracy and lifespan. When maintaining the ultra-high precision machine tool bearing body, the screw and nut are disassembled, and the movable sleeve is pulled away from the fixed sleeve. At this time, the first sealing rod is not compressed. Under the magnetic repulsion between the second magnetic ring and the first magnetic ring, the first sealing rod and the second magnetic ring are pushed towards the outside of the air pipe, causing the first sealing rod to draw gas from inside the air pipe, causing the second sealing rod to slide into the air pipe and pull the sealing ring, so that the sealing ring is no longer fitted onto the outer wall of the fixed sleeve. This structure can seal the ultra-high precision machine tool bearing body.

[0017] 2. The ultra-high precision machine tool bearing of the present invention comprises a sealing assembly as one component. When the movable sleeve is connected to the fixed sleeve, the ring fixedly installed on the side wall of the movable sleeve is fitted into the annular groove opened on the outer wall of the fixed sleeve. Under this constraint, a large gap can be avoided at the connection between the fixed sleeve and the movable sleeve. At the same time, the sealing ring can improve the sealing effect to prevent foreign objects from entering the interior of the ultra-high precision machine tool bearing body. This structure can provide all-round protection for the ultra-high precision machine tool bearing body, preventing foreign objects from penetrating into the interior of the ultra-high precision machine tool bearing body, thereby improving the precision and service life of the ultra-high precision machine tool bearing body.

[0018] 3. The ultra-high precision machine tool bearing of this invention comprises an auxiliary component. When the moving sleeve and the fixed sleeve provide sealing protection for the ultra-high precision machine tool bearing body, to prevent foreign matter from seeping into the ultra-high precision machine tool bearing body through the gap between the moving sleeve and the rotating rod, it is necessary to perform oil sealing treatment on the moving sleeve and the rotating rod. Lubricating and protective oil is added through the connection between the sealing plug and the moving ring. Under the restriction of the oil seal, foreign matter can be prevented from entering. When the lubricating and protective oil between the large and small retaining rings contains impurities, the moving ring is pushed towards the moving sleeve, causing the moving ring to drive the small and large retaining rings to slide. The large retaining ring slides... The outer wall of the rod slides, compressing the spring sleeved on the outer wall of the slide rod. Due to the sliding arrangement between the outer wall of the push ring and the inside of the moving ring, the push ring pushes the contaminated oil between the small and large retaining rings under its constraint. Since the inner diameter of the small retaining ring is smaller than that of the large retaining ring, the contaminated oil is discharged through the small retaining ring under its constraint. When the moving ring is released, the spring is not compressed, and under its elastic action, it pushes the large retaining ring to reset the moving ring and the small retaining ring. At this time, the sealing bolt can be removed, and new lubricating and protective oil can be added to the inside of the moving ring. This structure can provide auxiliary protection for the sealing assembly to prevent foreign matter from seeping into the body of the ultra-high precision machine tool bearing.

[0019] 4. The ultra-high precision machine tool bearing of the present invention comprises a protective component. When the sealing component and the auxiliary component protect the ultra-high precision machine tool bearing body, in order to ensure the normal use of the sealing component and the auxiliary component, it is necessary to protect them as a whole to prevent foreign objects from colliding with the sealing component and the auxiliary component during equipment operation and causing damage. The first mounting block and the first protective sleeve are installed on the outer wall of the output mechanism by the first mounting rod, and the second mounting block and the second protective sleeve are installed on the outer wall of the mounting panel by the second mounting rod. Since the first protective sleeve and the second protective sleeve are slidably set, under their restriction, the positions of the first protective sleeve and the second protective sleeve can be flexibly adjusted according to the distance between the output mechanism and the mounting panel. This structure can protect the sealing component and the auxiliary component as a whole, extending their service life. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a three-dimensional front view of the ultra-high precision machine tool bearing of the present invention; Figure 2 This is a schematic diagram of a three-dimensional sealing assembly, auxiliary assembly, and protective assembly for an ultra-high precision machine tool bearing according to the present invention; Figure 3 This is a schematic diagram of a sealing assembly for an ultra-high precision machine tool bearing according to the present invention; Figure 4 This is an exploded view of a sealing assembly for an ultra-high precision machine tool bearing according to the present invention. Figure 5 This is a cross-sectional schematic diagram of a sealing assembly for an ultra-high precision machine tool bearing according to the present invention; Figure 6 This is a schematic diagram of an auxiliary component for an ultra-high precision machine tool bearing according to the present invention; Figure 7 This is a cross-sectional schematic diagram of an auxiliary component for an ultra-high precision machine tool bearing according to the present invention; Figure 8 This is a schematic diagram of a protective component for an ultra-high precision machine tool bearing according to the present invention; Figure 9 This is an exploded schematic diagram of a protective component for an ultra-high precision machine tool bearing according to the present invention. In the diagram: 1. Output mechanism; 2. Rotating rod; 3. Mounting panel; 4. Machining component; 41. Sealing component; 43. Auxiliary component; 44. Protective component; 411. Fixing sleeve; 412. Ultra-high precision machine tool bearing body; 413. Nut; 414. Screw; 415. Connecting plate; 416. Moving sleeve; 417. Air pipe; 418. First magnetic ring; 419. Second magnetic ring; 420. First sealing rod; 421. Second sealing rod; 422. Seal 423. Ring; 424. Ring ring; 431. Fixed ring; 432. Moving ring; 433. Small retaining ring; 434. Large retaining ring; 435. Sliding rod; 436. Spring; 437. Push ring; 438. Sealing bolt; 441. First mounting rod; 442. First mounting block; 443. First protective sleeve; 444. First limiting ring; 445. Second protective sleeve; 446. Second limiting ring; 447. Second mounting block; 448. Second mounting rod. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Example 1: A preferred embodiment of the ultra-high precision machine tool bearing provided by the present invention. Figures 1 to 9 As shown: An ultra-high precision machine tool bearing, including an output mechanism 1; The output end of the output mechanism 1 is fixedly equipped with a rotating rod 2; The outer wall of the rotating rod 2 is rotatably connected to the mounting panel 3; The machining assembly 4 is located outside the output mechanism 1. The machining assembly 4 includes a sealing assembly 41 located outside the output mechanism 1. The sealing assembly 41 includes a fixed sleeve 411 fixedly installed on the outer wall of the output mechanism 1. A high-precision machine tool bearing body 412 is fitted inside the fixed sleeve 411. A nut 413 is provided on the outer side of the fixed sleeve 411. A screw 414 is threadedly connected inside the nut 413. A connecting plate 415 is fitted on the outer wall of the screw 414. A movable sleeve 416 is fixedly installed on the outer wall of the connecting plate 415. The movable sleeve 416 contains... An air tube 417 is fixedly installed in the part. A first magnetic ring 418 is fixedly installed on the inner wall of the air tube 417. A second magnetic ring 419 is slidably arranged inside the air tube 417. A first sealing rod 420 is fixedly installed on the side of the second magnetic ring 419 away from the first magnetic ring 418. A second sealing rod 421 is slidably arranged on the end of the air tube 417 away from the first sealing rod 420. A sealing ring 422 is fixedly installed at the end of the second sealing rod 421. An annular groove 423 is opened on the outer wall of the fixed sleeve 411. An annular ring 424 is fixedly installed on the side wall of the movable sleeve 416.

[0023] In this embodiment, when the ultra-high precision machine tool bearing body 412 is in use, the operating environment is demanding. It is often sealed with a sealing ring, but some small foreign objects can still seep into the interior of the ultra-high precision machine tool bearing body 412, affecting its precision and lifespan over time. Therefore, sealing is necessary. The ultra-high precision machine tool bearing body 412 is installed inside the fixed sleeve 411, and the movable sleeve 416 is fitted onto the outer wall of the rotating rod 2 and pushed towards the fixed sleeve 411. When the end of the first sealing rod 420 contacts and presses against the side wall of the fixed sleeve 411, the first sealing rod 420 causes the second magnetic ring 419 to slide into the air pipe 417. Because the first sealing rod 420 and... The second sealing rod 421 slides in a sealed manner with the air pipe 417. Under its restriction, the first sealing rod 420, which slides into the air pipe 417, pushes the gas inside the air pipe 417, causing the second sealing rod 421 to slide outward from the air pipe 417. The second sealing rod 421 drives the sealing ring 422 to slide accordingly, so that the sealing ring 422 is sleeved on the outer wall of the fixed sleeve 411 and the movable sleeve 416. When the sealing ring 422 is sleeved on the connection between the fixed sleeve 411 and the movable sleeve 416, the screw 414 is sleeved inside the connecting plate 415 and threadedly connected to the nut 413. Under the protection of the fixed sleeve 411 and the movable sleeve 416, the ultra-high precision machine tool bearing body 412 is sealed and sleeved to prevent foreign objects from entering the ultra-high precision machine tool bearing body 412. The internal structure of the machine tool bearing body 412 is affected, impacting the precision and lifespan of the ultra-high precision machine tool bearing body 412. During maintenance of the ultra-high precision machine tool bearing body 412, the screw 414 and nut 413 are disassembled, and the moving sleeve 416 is pulled away from the fixed sleeve 411. At this time, the first sealing rod 420 is not compressed. Under the magnetic repulsion between the second magnetic ring 419 and the first magnetic ring 418, the first sealing rod 420 and the second magnetic ring 419 are pushed towards the outside of the air pipe 417, causing the first sealing rod 420 to draw gas from inside the air pipe 417. This causes the second sealing rod 421 to slide into the air pipe 417 and pull the sealing ring 422, preventing the sealing ring 422 from contacting the fixed sleeve 411. 1. The outer wall sleeve can seal the ultra-high precision machine tool bearing body 412. When the movable sleeve 416 is connected to the fixed sleeve 411, the ring 424 fixedly installed on the side wall of the movable sleeve 416 is fitted with the annular groove 423 opened on the outer wall of the fixed sleeve 411. Under its restriction, a large gap can be avoided at the connection between the fixed sleeve 411 and the movable sleeve 416. At the same time, the sealing ring 422 can improve the sealing effect to prevent foreign objects from entering the interior of the ultra-high precision machine tool bearing body 412. This structure can provide all-round protection for the ultra-high precision machine tool bearing body 412, preventing foreign objects from penetrating into the interior of the ultra-high precision machine tool bearing body 412, thereby improving the precision and service life of the ultra-high precision machine tool bearing body 412.

[0024] Example 2: A preferred embodiment of the ultra-high precision machine tool bearing provided by the present invention Figures 1 to 9As shown: Auxiliary component 43 includes a fixed ring 431 fixedly installed on the side wall of movable sleeve 416, a movable ring 432 slidably disposed inside the fixed ring 431, a small retaining ring 433 fixedly installed on the inner wall of the movable ring 432, a large retaining ring 434 disposed on the side of the small retaining ring 433 near the movable sleeve 416, a slide rod 435 slidably disposed inside the large retaining ring 434, a spring 436 sleeved on the outer wall of the slide rod 435, a push ring 437 fixedly installed at the end of the slide rod 435, and a sealing bolt 438 sleeved on the outer wall of the movable ring 432.

[0025] In this embodiment, when the movable sleeve 416 and the fixed sleeve 411 seal and protect the ultra-high precision machine tool bearing body 412, in order to prevent foreign objects from seeping into the ultra-high precision machine tool bearing body 412 through the gap between the movable sleeve 416 and the rotating rod 2, it is necessary to perform oil sealing treatment on the movable sleeve 416 and the rotating rod 2. Lubricating and protective oil is added through the connection between the sealing plug 438 and the movable ring 432. Under the restriction of the oil seal, foreign objects can be prevented from entering. When the lubricating and protective oil between the large retaining ring 434 and the small retaining ring 433 contains impurities, the movable ring 432 is pushed towards the movable sleeve 416, so that the movable ring 432 drives the small retaining ring 433 and the large retaining ring 434 to slide. The large retaining ring 434 slides on the outer wall of the slide rod 435 and protects the slide rod 412. When the spring 436, which is sleeved on the outer wall of the 35, is compressed, the push ring 437 slides between the outer wall of the push ring 437 and the inside of the moving ring 432. Under its constraint, the push ring 437 pushes the contaminated oil between the small retaining ring 433 and the large retaining ring 434. Since the inner diameter of the small retaining ring 433 is smaller than that of the large retaining ring 434, the contaminated oil is discharged through the small retaining ring 433. When the moving ring 432 is released, the spring 436 is not compressed. Under its elastic action, it pushes the large retaining ring 434 to reset the moving ring 432 and the small retaining ring 433. At this time, the sealing bolt 438 can be removed, and new lubricating and protective oil can be added to the inside of the moving ring 432. This structure can provide auxiliary protection for the sealing assembly 41 to prevent foreign objects from seeping into the ultra-high precision machine tool bearing body 412.

[0026] Example 3: A preferred embodiment of the ultra-high precision machine tool bearing provided by the present invention. Figures 1 to 9 As shown: The protective component 44 includes a first mounting rod 441 sleeved on the outer wall of the output mechanism 1, a first mounting block 442 sleeved on the outer wall of the first mounting rod 441, a first protective sleeve 443 fixedly installed on the outer wall of the first mounting block 442, a first limiting ring 444 fixedly installed on the outer wall of the first protective sleeve 443, a second protective sleeve 445 slidably disposed on the outer wall of the first limiting ring 444, a second limiting ring 446 fixedly installed on the inner wall of the second protective sleeve 445, a second mounting block 447 fixedly installed on the outer wall of the second protective sleeve 445, and a second mounting rod 448 sleeved inside the second mounting block 447.

[0027] In this embodiment, when the sealing assembly 41 and the auxiliary assembly 43 protect the ultra-high precision machine tool bearing body 412, in order to ensure that the sealing assembly 41 and the auxiliary assembly 43 can be used normally, they need to be protected as a whole to avoid damage caused by foreign objects colliding with the sealing assembly 41 and the auxiliary assembly 43 during equipment operation. The first mounting block 442 and the first protective sleeve 443 are installed on the outer wall of the output mechanism 1 by the first mounting rod 441, and the second mounting block 447 and the second protective sleeve 445 are installed on the outer wall of the mounting panel 3 by the second mounting rod 448. Since the first protective sleeve 443 and the second protective sleeve 445 are slidably set, under their restriction, the positions of the first protective sleeve 443 and the second protective sleeve 445 can be flexibly adjusted according to the distance between the output mechanism 1 and the mounting panel 3. This structure can protect the sealing assembly 41 and the auxiliary assembly 43 as a whole and extend their service life.

[0028] In this configuration, the second magnetic ring 419 and the first magnetic ring 418 are magnetically repelled. The first sealing rod 420 and the second sealing rod 421 slide in a sealed manner with the air tube 417. When the first sealing rod 420 is not compressed, under the restriction of the magnetic repulsion between the second magnetic ring 419 and the first magnetic ring 418, the second magnetic ring 419 and the first sealing rod 420 are pushed towards the outside of the air tube 417. The first sealing rod 420 draws gas from inside the air tube 417, causing the second sealing rod 421 to slide into the air tube 417.

[0029] The sealing ring 422 is slidably disposed on the outer wall of the movable sleeve 416, and the sealing ring 422 is sleeved on the fixed sleeve 411. Under the restriction of the sealing ring 422, the gap at the connection between the fixed sleeve 411 and the movable sleeve 416 can be sleeved to improve the sealing effect.

[0030] Among them, nut 413 is fixedly installed on the outer wall of output mechanism 1, and air pipe 417 is threadedly sleeved with nut 413. Under the connection restriction of nut 413 and air pipe 417, the movable sleeve 416 and fixed sleeve 411 can be restricted to protect the ultra-high precision machine tool bearing body 412.

[0031] Among them, the outer wall of the push ring 437 is sealed and slides inside the moving ring 432, and the inner wall of the push ring 437 is slidably set to slide with the outer wall of the rotating rod 2. Under the restriction of the sliding push ring 437, the contaminated oil inside the moving ring 432 can be pushed and cleaned.

[0032] Among them, the end of the slide rod 435 away from the push ring 437 is fixedly installed on the side wall of the movable sleeve 416, and the end of the spring 436 is fixedly installed on the side wall of the movable sleeve 416 and the side of the large retaining ring 434 away from the small retaining ring 433 respectively. Under the elastic action of the spring 436, the movable ring 432 that is not pushed can be reset.

[0033] The second protective sleeve 445 is slidably disposed inside the outer wall of the first limiting ring 444, and the second limiting ring 446 is slidably disposed inside the outer wall of the first protective sleeve 443. Under the restriction of the first limiting ring 444 and the second limiting ring 446, the first protective sleeve 443 and the second protective sleeve 445 are prevented from falling off.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing 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 invention should be included within the protection scope of the present invention.

Claims

1. An ultra-high precision machine tool bearing, comprising an output mechanism (1); The output mechanism (1) has a rotating rod (2) fixedly installed at its output end; The outer wall of the rotating rod (2) is rotatably connected to the mounting panel (3); And a processing assembly (4) disposed outside the output mechanism (1), characterized in that: The processing component (4) includes a sealing component (41) disposed outside the output mechanism (1), an auxiliary component (43) disposed outside the sealing component (41), and a protective component (44) disposed outside the auxiliary component (43). The protective component (44) includes a first mounting rod (441) sleeved on the outer wall of the output mechanism (1), a first mounting block (442) sleeved on the outer wall of the first mounting rod (441), a first protective sleeve (443) fixedly installed on the outer wall of the first mounting block (442), a first limiting ring (444) fixedly installed on the outer wall of the first protective sleeve (443), a second protective sleeve (445) slidably arranged on the outer wall of the first limiting ring (444), a second limiting ring (446) fixedly installed on the inner wall of the second protective sleeve (445), a second mounting block (447) fixedly installed on the outer wall of the second protective sleeve (445), and a second mounting rod (448) sleeved inside the second mounting block (447).

2. The ultra-high precision machine tool bearing according to claim 1, characterized in that: The second protective sleeve (445) is slidably disposed inside the outer wall of the first limiting ring (444), and the second limiting ring (446) is slidably disposed inside the outer wall of the first protective sleeve (443).

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