High-precision numerical control self-aligning roller bearing outer ring raceway grinding machine

Abstract

The utility model relates to the technical field of roller bearing machining, and discloses a high-precision numerical control self-aligning roller bearing outer ring raceway grinding machine which comprises a machine body, a movable motor is fixedly connected to the interior of the machine body, and a movable lead screw, a movable sliding block, a lifting hydraulic rod and a right clamp are connected to one end of the movable motor in an inserted mode. The grinding device is reasonable in structure, the machining grinding tool is made to rotate continuously through the clamp motor, roller bearing outer ring raceways can be ground, the roller bearing outer ring raceways of different models cannot be clamped and positioned due to the fact that the sizes of the roller bearing outer ring raceways of all batches are different, the driving motor rotates to drive the rotating shaft, the grinding structure rotates continuously, and the grinding effect is good. Residues on the surface of the machining grinding tool can be removed, the service life of the machining grinding tool is affected due to the fact that the residues easily exist on the surface of the machining grinding tool after grinding work is finished, continuous air blowing is conducted on the machining grinding tool through the draught fan, and the surface of the machining grinding tool is prone to being rusted when the machining grinding tool is in a humid environment after use is finished.

Description

Technical Field

[0001] The utility model relates to the technical field of roller bearing processing, in particular to a high-precision numerically controlled spherical roller bearing outer ring raceway grinder. Background Art

[0002] A grinder is a machine tool that uses abrasive tools to grind workpieces to obtain the desired shape, size and precision machined surface. The processing action of a grinder is grinding. Grinding work occupies a primary position in mechanical processing. The sharpening of cutting tools and the precise manufacturing of mechanical parts all depend on grinding work. Grinding work is also a part of precision machining. The grinding head is an indispensable component in the working process of the grinder. The application of grinder heads is very extensive. In the process of processing the outer ring raceway of spherical roller bearings, grinder heads are often needed to process them.

[0003] A high-precision spherical roller bearing outer ring raceway grinder disclosed in announcement number CN217096962U, although the device can grind the outer and inner sides of the spherical roller bearing outer ring at the same time by setting forward and reverse motors, drive motors, loading seats, electric telescopic rods, distance sensors, outer grinding tools for the outer rings of the bearings and inner grinding tools for the outer rings of the bearings, thereby improving the grinding efficiency and facilitating the control of the grinding thickness of the outer rings of the spherical roller bearings during grinding, the existing device does not solve the problem that the outer ring raceways of roller bearings of different models cannot be clamped and positioned due to the different sizes of the outer ring raceways of each batch of roller bearings, the processing abrasive tool is prone to residues on the surface after the grinding work is completed, thereby affecting the service life of the processing abrasive tool, and the processing abrasive tool is prone to rust on the surface of the processing abrasive tool in a humid environment after use, so we propose a new device to solve the above problems. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a high-precision CNC spherical roller bearing outer ring raceway grinder, which solves the problems that residues are likely to remain on the surface of the grinding tool after use, affecting subsequent use, and that the surface of the grinding tool is prone to rust when stored in a humid environment.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the utility model is implemented through the following technical solutions: a high-precision CNC spherical roller bearing outer ring raceway grinder, comprising a bed body, a mobile motor is fixedly connected inside the bed body, a mobile screw is inserted at one end of the mobile motor, a mobile slider is penetrated by a surface thread of the mobile screw, a lifting hydraulic rod is fixedly connected to the lower surface of the mobile slider, a right clamp is inserted at one end of the lifting hydraulic rod, a telescopic hydraulic rod is fixedly connected inside the right clamp, a left clamp is inserted at one end of the telescopic hydraulic rod, a clamp motor is fixedly connected inside the right clamp, a processing mold is inserted at one end of the clamp motor, a fixed motor is fixedly connected inside the bed body, a fixed screw is inserted at one end of the fixed motor, a front splint is penetrated by a surface thread of the fixed screw, a splint hydraulic rod is fixedly connected inside the front splint, a splint hydraulic rod is inserted at one end of the splint hydraulic rod, a rear splint is inserted at one end of the splint hydraulic rod

[0008] Optionally, a fixed slide groove is provided on the bottom wall of the bed body near the left side, and the bed body is slidably connected to the front clamping plate via the fixed slide groove.

[0009] Optionally, a movable slide groove is provided near the middle of the top wall of the bed body, and the bed body is slidably connected to the movable slider via the movable slide groove.

[0010] Optionally, the right clamp and the left clamp are adapted to the processing mold after being closed.

[0011] Optionally, a hole is opened near the middle of the bottom wall of the bed body, and the bed body is fixedly connected to the drive motor through the hole. A drive shaft is inserted into one end of the drive motor, and a grinding structure is fixedly connected to the surface of the drive shaft.

[0012] Optionally, a lubricating liquid tank is fixedly connected to the inside of the bed, and the lubricating liquid tank is located near the right side of the bed. A water pump is plugged into the left side of the lubricating liquid tank, and a hose is plugged into one end of the water pump. A pipeline is opened inside the bed, and the hose is fixedly connected to the nozzle through a through-pipe.

[0013] Optionally, a placement plate is fixedly connected to the interior of the bed, a filter box is fixedly connected to the upper surface of the placement plate, a bracket is fixedly connected to the interior of the bed, the bracket is located at a position of the bottom wall of the bed close to the front, a fan is fixedly connected to the interior of the bracket, and a heating structure is fixedly connected to one side of the bracket.

[0014] Optionally, the fan is located in the middle of the bracket, and the heating structure is located around the fan.

[0015] In summary, the technical effects and advantages of the utility model are:

[0016] 1. The utility model has a reasonable structure. The rear clamp is moved forward by the clamp hydraulic rod, and the outer ring raceway of the roller bearing can be clamped and fixed by the front clamp and the rear clamp. The right clamp is moved downward by the lifting hydraulic rod until the processing mold fits the inner wall of the outer ring raceway of the roller bearing. Then, the processing mold is continuously rotated by the clamp motor to grind the outer ring raceway of the roller bearing, which solves the problem that the outer ring raceways of roller bearings of different models cannot be clamped and positioned uniformly due to the different sizes of the outer ring raceways of each batch of roller bearings. The distance between the front clamp and the rear clamp can be adjusted according to the different sizes of the outer ring raceways of the roller bearings, so as to achieve uniform positioning of the outer ring raceways of roller bearings of different models. The fixing effect is achieved, which greatly enhances the practicability of the grinder. The moving motor drives the moving lead screw to make the moving slider drive the processing abrasive to move to the right, and the processing abrasive is moved downward by the lifting hydraulic rod until the processing abrasive enters the inside of the grinding structure. The driving motor rotates the driving shaft to make the grinding structure rotate continuously, so that the residue on the surface of the processing abrasive can be cleaned, which solves the problem that the surface of the processing abrasive is prone to residue after the grinding work is completed, thereby affecting the service life of the processing abrasive. The effect of ensuring the cleanliness of the surface of the processing abrasive by cleaning the attachments on the surface of the processing abrasive after the work is completed is achieved, which greatly enhances the service life of the processing abrasive.

[0017] 2. In the utility model, the lubricating oil in the lubricating liquid tank is discharged into the inside of the nozzle through the hose by a water pump, and then the lubricating oil is sprayed on the rotating position of the processing mold through the nozzle, which solves the problem that the rotating part of the processing mold is not easy to rotate smoothly after being used for a period of time, thereby reducing the service life of the device. The lubricating oil can be sprayed on the rotating position after being used for a period of time to enhance its smoothness, which greatly enhances the service life of the device. After spraying the lubricating oil, the right clamp is moved downward by the lifting hydraulic rod, and the left clamp is moved to the right by the telescopic hydraulic rod, so that the processing mold can be clamped and fixed. The machine drives the moving screw to make the moving slider drive the processing abrasive to move to the right, and the processing abrasive is moved downward by the lifting hydraulic rod until the processing abrasive enters the filter box. The heating structure continuously supplies heat, and the fan continuously blows air to the processing abrasive, so that the processing abrasive is continuously in a dry environment, which solves the problem that the processing abrasive is easily corroded in a humid environment after use. After the use of the processing abrasive, it can be placed in the filter box and then kept in a dry environment for a long time by continuously blowing hot air to it, which greatly reduces the rust of the processing abrasive. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is an exploded schematic diagram of the bed structure of the utility model;

[0020] Figure 3 This is an exploded schematic diagram of the lubricating liquid tank structure of the utility model;

[0021] Figure 4 This is an exploded schematic diagram of the fan structure of the utility model.

[0022] In the figure: 1. bed; 2. moving motor; 3. moving lead screw; 4. moving slider; 5. lifting hydraulic rod; 6. right clamp; 7. telescopic hydraulic rod; 8. left clamp; 9. clamp motor; 10. processing mold; 11. fixed motor; 12. fixed lead screw; 13. front clamp; 14. clamp hydraulic rod; 15. rear clamp; 16. drive motor; 17. drive shaft; 18. grinding structure; 19. lubricating liquid tank; 20. water pump; 21. hose; 22. nozzle; 23. placement plate; 24. filter box; 25. bracket; 26. fan; 27. heating structure. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example: Reference Figure 1-Figure 4 The high-precision CNC spherical roller bearing outer ring raceway grinder shown in the figure includes a bed body 1, a moving motor 2 is fixedly connected inside the bed body 1, a moving screw 3 is inserted at one end of the moving motor 2, a moving slider 4 is threaded through the surface of the moving screw 3, a lifting hydraulic rod 5 is fixedly connected to the lower surface of the moving slider 4, a right clamp 6 is inserted at one end of the lifting hydraulic rod 5, a telescopic hydraulic rod 7 is fixedly connected inside the right clamp 6, a left clamp 8 is inserted at one end of the telescopic hydraulic rod 7, a clamp motor 9 is fixedly connected inside the right clamp 6, a processing mold 10 is inserted at one end of the clamp motor 9, a fixed motor 11 is fixedly connected inside the bed body 1, a fixed screw 12 is inserted at one end of the fixed motor 11, a front splint 13 is threaded through the surface of the fixed screw 12, a splint hydraulic rod 14 is fixedly connected inside the front splint 13, a splint hydraulic rod 14 is inserted at one end of the splint hydraulic rod 14. A rear splint 15 is inserted at one end of the splint hydraulic rod 14.

[0025] As a preferred implementation in this embodiment, Figure 1 and Figure 2As shown, a moving motor 2 is fixedly connected to the inside of the bed body 1, a moving screw 3 is plugged into one end of the moving motor 2, a moving slider 4 is threaded through the surface of the moving screw 3, a moving slide groove is opened near the middle of the top wall of the bed body 1, the bed body 1 is slidably connected to the moving slider 4 through the moving slide groove, a lifting hydraulic rod 5 is fixedly connected to the lower surface of the moving slider 4, one end of the lifting hydraulic rod 5 is plugged into a right clamp 6, a telescopic hydraulic rod 7 is fixedly connected to the inside of the right clamp 6, one end of the telescopic hydraulic rod 7 is plugged into The left clamp 8 is connected, and the inside of the right clamp 6 is fixedly connected to the clamp motor 9, and one end of the clamp motor 9 is plugged with a processing mold 10. After the right clamp 6 and the left clamp 8 are closed, they are adapted to the processing mold 10. The inside of the bed body 1 is fixedly connected to the fixed motor 11, and one end of the fixed motor 11 is plugged with a fixed screw 12. The surface thread of the fixed screw 12 penetrates the front clamp plate 13. A fixed slide groove is opened near the left side of the inner bottom wall of the bed body 1. The bed body 1 is slidably connected to the front clamp plate 13 through the fixed slide groove. The front clamp The plate 13 is fixedly connected with a clamping plate hydraulic rod 14 inside, and one end of the clamping plate hydraulic rod 14 is plugged with a rear clamping plate 15. During use, the clamping plate hydraulic rod 14 is used to move the rear clamping plate 15 forward, so that the outer ring raceway of the roller bearing can be clamped and fixed by the front clamping plate 13 and the rear clamping plate 15, and then the fixed motor 11 drives the fixed lead screw 12 to move the outer ring raceway of the roller bearing to a suitable position. At the same time, the lifting hydraulic rod 5 is used to move the right clamp 6 downward until the processing mold 10 is aligned with the inner surface of the outer ring raceway of the roller bearing. The wall is fitted, and then the clamp motor 9 is used to make the processing mold 10 rotate continuously, so as to grind the outer ring raceway of the roller bearing, which solves the problem that the outer ring raceways of roller bearings of different models cannot be clamped and positioned due to the different sizes of the outer ring raceways of each batch of roller bearings. The distance between the front clamp plate 13 and the rear clamp plate 15 can be adjusted according to the different sizes of the outer ring raceways of the roller bearings, so as to achieve the effect of fixing the outer ring raceways of roller bearings of different models, thereby greatly enhancing the practicability of the grinding machine.

[0026] like Figure 3 and Figure 4As shown, in this embodiment, a hole is provided near the middle of the inner bottom wall of the bed body 1, and the bed body 1 is fixedly connected to the driving motor 16 through the hole, a driving shaft 17 is plugged into one end of the driving motor 16, and a grinding structure 18 is fixedly connected to the surface of the driving shaft 17, a lubricating liquid tank 19 is fixedly connected to the inside of the bed body 1, and the lubricating liquid tank 19 is located near the right side of the inside of the bed body 1, a water pump 20 is plugged into the left side of the lubricating liquid tank 19, and a hose 21 is plugged into one end of the water pump 20, a pipeline is provided inside the bed body 1, and the hose 21 is fixedly connected to the nozzle 22 through the through pipeline, a placement plate 23 is fixedly connected to the inside of the bed body 1, and a filter box 24 is fixedly connected to the upper surface of the placement plate 23, and a bracket 25 is fixedly connected to the inside of the bed body 1. 25 is located near the front of the bottom wall of the bed body 1, a fan 26 is fixedly connected inside the bracket 25, a heating structure 27 is fixedly connected to one side of the bracket 25, the fan 26 is located in the middle of the bracket 25, and the heating structure 27 is located around the fan 26. A driving slot is opened on the upper surface of the bed body 1, and a driver is arranged inside the driving slot. The driver model is DM556, which is a digital two-phase stepper motor driver based on a 32-bit motor-specific processor. It can set the subdivision within 400 to 51200 and any current value within the rated current, which can meet the application needs of most occasions. The driver integrates the motor parameter automatic recognition function inside, which can recognize 57 / 60 motors of different specifications and automatically generate the optimal operating parameters. , the performance of the motor is maximized, the motor runs smoothly, the vibration is small, the noise is small, and the output is large. During use, the moving motor 2 drives the moving screw 3, and the moving slider 4 can drive the processing mold 10 to move to the right after the grinding of the outer ring raceway of the roller bearing is completed. The processing mold 10 is moved downward by the lifting hydraulic rod 5 until the processing mold 10 enters the inside of the grinding structure 18, and the driving motor 16 rotates the driving shaft 17 to make the grinding structure 18 rotate continuously, so as to clean the residue on the surface of the processing mold 10, solve the problem that the surface of the processing mold 10 is prone to residue after the grinding work is completed, thereby affecting the service life of the processing mold 10, and achieve the purpose of cleaning the surface of the processing mold 10 after the work is completed. The cleaning effect ensures the surface cleanliness of the processing mold 10, which greatly increases the service life of the processing mold 10. The left clamp 8 is moved to the left by the telescopic hydraulic rod 7 to separate the processing mold 10 from the left clamp 8 and the right clamp 6. The left clamp 8 and the right clamp 6 are moved upward by the lifting hydraulic rod 5. The lubricating oil in the lubricating liquid tank 19 is discharged into the inside of the spray head 22 through the hose 21 by the water pump 20, and the lubricating oil is sprayed on the rotating position of the processing mold 10 through the spray head 22. This solves the problem that the rotating part of the processing mold 10 is prone to rotation after being used for a period of time, thereby reducing the service life of the device. The effect of spraying lubricating oil on the rotating position after being used for a period of time to enhance its smoothness is achieved, which greatly increases the service life of the device.After spraying the lubricating oil, the right clamp 6 is moved downward by the lifting hydraulic rod 5, and the left clamp 8 is moved to the right by the telescopic hydraulic rod 7, so that the processing mold 10 can be clamped and fixed, and the moving motor 2 drives the moving lead screw 3 to make the moving slider 4 drive the processing mold 10 to move to the right, and the processing mold 10 is moved downward by the lifting hydraulic rod 5 until the processing mold 10 enters the filter box 24, and then the left clamp 8 is moved to the left by the telescopic hydraulic rod 7 to separate the processing mold 10 from the left clamp 8 and the right clamp 6, and then the lifting hydraulic rod 5 moves the left clamp 8 and the right clamp 6 upward, and continuously supplies heat through the heating structure 27, and then continuously blows air to the processing mold 10 through the fan 26, so that the processing mold 10 is continuously in a dry environment, which solves the problem that the processing mold 10 is easily rusted in a humid environment after use. After the processing mold 10 is used, it can be placed in the filter box 24 and then continuously blow hot air to it so that it is in a dry environment for a long time, which greatly reduces the rust of the processing mold 10.

[0027] How this utility works:

[0028] During use, the rear clamping plate 15 is moved forward by the clamping plate hydraulic rod 14, and the outer ring raceway of the roller bearing can be clamped and fixed by the front clamping plate 13 and the rear clamping plate 15, and then the fixed motor 11 drives the fixed screw 12 to move the outer ring raceway of the roller bearing to a suitable position, and at the same time, the right clamp 6 is moved downward by the lifting hydraulic rod 5 until the processing mold 10 is in contact with the inner wall of the outer ring raceway of the roller bearing, and then the processing mold 10 is continuously rotated by the clamp motor 9 to grind the outer ring raceway of the roller bearing, which solves the problem that the outer ring raceways of roller bearings of different models cannot be clamped and positioned due to the different sizes of the outer ring raceways of each batch of roller bearings, and achieves the front clamping plate 13 and the rear clamping plate 15 according to the different sizes of the outer ring raceways of the roller bearings. The spacing can be adjusted so as to achieve the effect of fixing the outer ring raceways of roller bearings of different models, which greatly enhances the practicality of the grinder. By driving the moving motor 2 to drive the moving screw 3, the moving slider 4 can drive the processing mold 10 to move to the right after the grinding of the outer ring raceway of the roller bearing is completed, and the processing mold 10 is moved downward by the lifting hydraulic rod 5 until the processing mold 10 enters the inside of the grinding structure 18. The driving motor 16 rotates the driving shaft 17 to make the grinding structure 18 rotate continuously, so as to clean the residue on the surface of the processing mold 10, solve the problem that the surface of the processing mold 10 is prone to residue after the grinding work is completed, thereby affecting the service life of the processing mold 10, and achieve the effect of cleaning the surface of the processing mold 10 after the work of the processing mold 10 is completed. The attachments are removed to ensure the cleanliness of the surface of the processing mold 10, which greatly enhances the service life of the processing mold 10. The left clamp 8 is moved to the left by the telescopic hydraulic rod 7 to separate the processing mold 10 from the left clamp 8 and the right clamp 6. The left clamp 8 and the right clamp 6 are moved upward by the lifting hydraulic rod 5. The lubricating oil in the lubricating liquid tank 19 is discharged into the inside of the spray head 22 through the hose 21 by the water pump 20, and then the lubricating oil is sprayed on the rotating position of the processing mold 10 through the spray head 22. The problem that the rotating part of the processing mold 10 is easy to rotate unsmoothly after being used for a period of time, thereby reducing the service life of the device, is solved, and the effect of spraying lubricating oil on the rotating position after being used for a period of time to enhance its smoothness is achieved, which greatly enhances the device. The service life of the mold is improved by spraying lubricating oil, and the right clamp 6 is moved downward by the lifting hydraulic rod 5, and the left clamp 8 is moved to the right by the telescopic hydraulic rod 7, so that the processing mold 10 can be clamped and fixed, and the moving motor 2 drives the moving lead screw 3 to make the moving slider 4 drive the processing mold 10 to move to the right, and the processing mold 10 is moved downward by the lifting hydraulic rod 5 until the processing mold 10 enters the filter box 24, and then the left clamp 8 is moved to the left by the telescopic hydraulic rod 7 to separate the processing mold 10 from the left clamp 8 and the right clamp 6, and then the left clamp 8 and the right clamp 6 are moved upward by the lifting hydraulic rod 5, and the heat is continuously supplied by the heating structure 27, and then the processing mold 10 is continuously blown by the fan 26, so that the processing mold 10 is continuously in a dry environment.The problem that the processing abrasive tool 10 is easily rusted in a humid environment after use is solved. The processing abrasive tool 10 can be placed in the filter box 24 after use and then kept in a dry environment for a long time by continuously blowing hot air to it, which greatly reduces the rust of the processing abrasive tool 10.

[0029] The electrical components appearing in this article are all connected to the external main controller DM556 and 220V AC power, and the main controller can be a conventional known device for control such as a computer.

[0030] Finally, it should be noted that the above 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 aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A high-precision CNC spherical roller bearing outer ring raceway grinding machine, comprising a bed (1), characterized in that: The inside of the bed body (1) is fixedly connected to a moving motor (2), one end of the moving motor (2) is plugged with a moving lead screw (3), a surface thread of the moving lead screw (3) penetrates a moving slider (4), the lower surface of the moving slider (4) is fixedly connected to a lifting hydraulic rod (5), one end of the lifting hydraulic rod (5) is plugged with a right clamp (6), the inside of the right clamp (6) is fixedly connected to a telescopic hydraulic rod (7), one end of the telescopic hydraulic rod (7) is plugged with a left clamp (8), the right The clamp (6) is fixedly connected to a clamp motor (9) inside, one end of the clamp motor (9) is plugged with a processing mold (10), the bed (1) is fixedly connected to a fixed motor (11) inside, one end of the fixed motor (11) is plugged with a fixed screw (12), a front clamp (13) is threadedly penetrated through the surface of the fixed screw (12), the front clamp (13) is fixedly connected to a clamp hydraulic rod (14) inside, and one end of the clamp hydraulic rod (14) is plugged with a rear clamp (15).

2. The high-precision CNC spherical roller bearing outer ring raceway grinding machine according to claim 1, characterized in that: A fixed slide groove is provided on the inner bottom wall of the bed body (1) near the left side, and the bed body (1) is slidably connected to the front clamping plate (13) via the fixed slide groove.

3. The high-precision CNC spherical roller bearing outer ring raceway grinding machine according to claim 1, characterized in that: A movable slide groove is provided near the middle of the inner top wall of the bed body (1), and the bed body (1) is slidably connected to the movable slider (4) via the movable slide groove.

4. The high-precision CNC spherical roller bearing outer ring raceway grinding machine according to claim 1, characterized in that: The right clamp (6) and the left clamp (8) are adapted to the processing mold (10) after being closed.

5. The high-precision CNC spherical roller bearing outer ring raceway grinding machine according to claim 1, characterized in that: A hole is provided near the middle of the inner bottom wall of the bed body (1), and the bed body (1) is fixedly connected to the drive motor (16) through the hole. A drive shaft (17) is plugged into one end of the drive motor (16), and a grinding structure (18) is fixedly connected to the surface of the drive shaft (17).

6. The high-precision CNC spherical roller bearing outer ring raceway grinding machine according to claim 1, characterized in that: A lubricating liquid tank (19) is fixedly connected to the inside of the bed (1), and the lubricating liquid tank (19) is located near the right side of the bed (1). A water pump (20) is plugged into the left side of the lubricating liquid tank (19), and a hose (21) is plugged into one end of the water pump (20). A pipeline is provided inside the bed (1), and the hose (21) is fixedly connected to the nozzle (22) through the through pipeline.

7. The high-precision CNC spherical roller bearing outer ring raceway grinding machine according to claim 1, characterized in that: A placement plate (23) is fixedly connected to the interior of the bed body (1), a filter box (24) is fixedly connected to the upper surface of the placement plate (23), a bracket (25) is fixedly connected to the interior of the bed body (1), the bracket (25) is located at a position close to the front of the inner bottom wall of the bed body (1), a fan (26) is fixedly connected to the interior of the bracket (25), and a heating structure (27) is fixedly connected to one side of the bracket (25).

8. The high-precision CNC spherical roller bearing outer ring raceway grinding machine according to claim 7, characterized in that: The fan (26) is located in the middle of the bracket (25), and the heating structure (27) is located around the fan (26).

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