An end face grinding device and method for an equal cross-section thin-walled bearing

Abstract

The present invention provides an end face grinding device and method for an equal cross-section thin-walled bearing, belonging to the technical field of bearing grinding. The device includes a frame, a plurality of planetary wheels, a rotating wheel, a feeding mechanism, and an upper grinding disc. A moving frame is vertically slidably connected to the frame, and the upper grinding disc is arranged on the moving frame. A rotating ring is rotatably connected to the moving frame, and a transmission tooth column is arranged on the lower end face of the rotating ring. A lower grinding disc is arranged below the upper grinding disc. The lower grinding disc includes an outer grinding disc, an inner grinding disc capable of vertically moving, and a plurality of grinding rings. The number of grinding rings is equal to that of the planetary wheels. Limiting rings are fixedly connected to the upper and lower end faces of the planetary wheels, and the outer diameter of the limiting ring is equal to the diameter of the grinding ring. A lower gear is fixedly connected to the lower part of the grinding ring through a connecting column, and the number of teeth of the lower gear is equal to that of the planetary wheels. The rotating wheel is arranged at the center of the inner grinding disc, and an inner tooth column is fixedly connected to the upper end face of the rotating wheel. The present invention has the effect of improving the grinding quality of the bearing.

Description

Technical Field

[0001] The present invention relates to the technical field of bearing grinding, and particularly relates to an end face grinding device and method for an equal cross-section thin-walled bearing. Background Art

[0002] An equal cross-section thin-walled bearing refers to a thin-walled bearing with a consistent cross-sectional dimension throughout the bearing length. The ratio of the inner diameter, outer diameter, and width of this type of bearing makes the bearing wall relatively thin, thus reducing weight and saving space while ensuring a certain load-bearing capacity. The bearing end face refers to the two end planes of the bearing, that is, the surfaces perpendicular to the inner and outer rings of the bearing. This face is usually parallel to the bearing installation face and serves for positioning and support.

[0003] In the prior art, a double-end surface grinding machine is generally used for grinding the bearing end face. A double-end surface grinding machine is a high-efficiency and high-precision planar processing device that can simultaneously grind the two parallel end faces of a workpiece.

[0004] Referring to the Chinese patent document with the authorization announcement number CN118106831B, a double-end surface grinding machine and its usage method are disclosed. It includes a workbench and an upper grinding disc. There is a lower grinding disc corresponding to the upper grinding disc on the workbench. A fixing frame is fixedly installed at the top edge of the workbench. A plurality of carrier discs are evenly distributed on the workbench. The carrier discs are driven by a rotating rotating gear during grinding and rotate on the workbench.

[0005] In view of the above related technologies, when grinding the bearing end face, to meet the loading requirements, the diameter of the workpiece groove on the carrier disc is usually larger than the diameter of the bearing. Therefore, the position of the bearing in the workpiece groove will change during the grinding process. During the process of the upper grinding disc and the lower grinding disc rotating in opposite directions to grind the bearing, the produced bearing has uneven thickness due to processing errors. During the process of the upper grinding disc pressing down, the upper grinding disc will first contact the thicker bearing. As the upper grinding disc and the lower grinding disc rotate, since there is a gap between the thinner bearing and the upper grinding disc, the upper end face of the bearing will be inclined, resulting in low grinding quality. Summary of the Invention

[0006] In view of this, the present invention provides an end face grinding device and method for an equal cross-section thin-walled bearing, aiming to solve the problem of low bearing grinding quality in the prior art.

[0007] To solve the above technical problems, the present invention provides an end face grinding device and method for an equal cross-section thin-walled bearing.

[0008] The axle up and down groove at two ends embeds respectively in two guide rails up and down of being made up of the groove on the attachment piece, and the tooth on the attachment piece is meshed with tooth on upper sprocket wheel, the lower sprocket.

[0009] By adopting the above technical solution, before grinding the bearing, the inner grinding disc is first raised, and the planetary wheel is made to fall into the groove formed by the inner grinding disc and the grinding ring through the limiting ring on the planetary wheel, and the transmission gear column is inserted into the tooth gap between the planetary wheel and the lower gear. Then the outer ring is rotated to make the planetary wheel rotate and revolve around the rotating wheel. With the cooperation of the transmission gear column, the lower gear and the planetary wheel, there is no relative movement between the planetary wheel and the grinding ring. Therefore, in the process of grinding the bearing by the upper and lower grinding discs, the top of the bearing can be roughly ground first to make the height of the bearing tend to be consistent, so that when grinding the two ends of the bearing subsequently, its stability is improved to ensure the verticality of the bearing and improve its grinding quality.

[0010] Optionally, the feeding mechanism includes a feeding plate that is laterally slidably connected to the frame, the top of the feeding plate is rotatably connected to a dial for toggling the planetary wheel, the feeding plate is fixedly connected to the feeding frame, the feeding frame is equipped with an air bag for making the bearing fall individually, the feeding plate is rotatably connected to the feeding wheel, the upper end face of the feeding wheel is fixedly connected to the feeding gear column, the side of the feeding plate close to the lower grinding plate is rotatably connected to the baffle rod, and the side of the feeding plate close to the lower grinding plate is provided with a feeding port for the planetary wheel to move to the grinding ring, a first rotation source is installed on the frame, the first rotation source can drive the inner grinding plate to rotate through the second rotating frame, and a control plate is vertically slidably connected to the rotating ring.

[0011] By adopting the above technical solution, multiple bearings are vertically arranged on the loading rack. The airbag contracts and expands to make the bearings fall one by one and land in the workpiece grooves on the planet gears. Then, the loading wheel is rotated to make the planet gears rotate for loading the bearings. Then, the dial is rotated to drive the planet gears to rotate and repeat the above steps to load multiple planet gears. Then, the upper grinding disc is lowered and the control board is moved upward. The transmission gear column moves upward accordingly and remains in contact with the control board to provide space for the planet gear to move to the lower grinding disc. As the planet gear rotates on the loading tray, when the planet gear rotates to the position of the stop rod, blocked by the stop rod, the planet gear moves in an "∞" shape to the grinding ring through the rotation of the inner grinding disc and the loading wheel to complete the loading of the bearings. When the grinding is completed, the planet gear can be unloaded through the rotation of the inner grinding disc and the loading wheel, reducing the working intensity of the staff and improving work efficiency.

[0012] Optionally, a first linear driver is installed on the machine frame. The moving frame is fixedly connected to the driving shaft of the first linear driver. A second rotating source is installed on the moving frame. A driving column is rotatably connected to the moving frame. The second rotating source can drive the driving column to rotate. The bottom of the driving column is fixedly connected to a support plate. The upper grinding disc is fixedly connected to the bottom of the support plate through a support rod. A liquid storage housing is fixedly connected to the side wall of the support plate. A plurality of cooling pipes penetrating the upper grinding disc are communicated with the bottom of the liquid storage housing.

[0013] By adopting the above technical solution, the first linear driver drives the moving frame to move in the vertical direction to realize the movement of the upper grinding disc. The second rotating source drives the driving column to rotate, and the rotation of the driving column can drive the support plate and the upper grinding disc to rotate to realize the grinding of the upper end face of the bearing. Through the setting of the liquid storage housing, the temperature of the workpiece and the grinding tool can be reduced during the grinding process to prevent the decline of material performance or the damage of the grinding tool caused by overheating.

[0014] Optionally, a second linear driver is installed at the bottom of the connecting column. The second linear driver can drive the connecting column and the grinding ring to move in the vertical direction.

[0015] By adopting the above technical solution, after the upper end face of the bearing is polished, the second linear driver drives the grinding ring to move downward, so that a gap is generated between the grinding ring and the inner grinding disc. The rotation of the outer ring can drive the planet gear to rotate, so that the debris and coolant generated by rough grinding can be thrown out to reduce the influence of the debris on the subsequent fine grinding process and improve the grinding quality of the bearing.

[0016] Optionally, a third linear driver is installed on the second rotating frame. The inner grinding disc is fixedly connected to the driving shaft of the third linear driver.

[0017] By adopting the above technical solution, the setting of the third linear driver can drive the inner grinding disc to move in the vertical direction to cooperate with the movement of the planetary gear and the subsequent grinding process.

[0018] Optionally, a blanking port is formed on the loading tray, and a blanking wheel is rotatably connected to the loading tray on one side of the blanking port. A blanking tooth column is fixedly connected to the upper end surface of the blanking wheel.

[0019] By adopting the above technical solution, after the bearing is ground, the planetary gear is rotated to the loading tray. When the planetary gear moves to the blanking port, the rotation of the blanking wheel can drive the planetary gear to rotate. As the planetary gear rotates, the bearings fall through the blanking port one by one and are collected, so as to improve the working efficiency.

[0020] Optionally, a blowing housing is fixedly connected to the loading tray, and a blowing pipe for cleaning the planetary gear is communicated with the top of the blowing housing.

[0021] By adopting the above technical solution, due to the coolant, there will be coolant adhering to the surface of the planetary gear. When the planetary gear moves into the blowing housing, the airflow generated by the blowing pipe can clean the surface of the planetary gear, facilitating the subsequent work.

[0022] In a second aspect, the present invention provides an end face grinding method for an equal-section thin-walled bearing, which is applied to an equal-section thin-walled bearing end face grinding device described in the first aspect. The method is as follows:

[0023] S1, load the bearings to be ground onto the planetary gear one by one, move the inner grinding disc upward and move the upper grinding disc 13 downward, move the loading tray close to the lower grinding disc, rotate the dial and under the action of the stop rod, move the planetary gear to the grinding circle, and rotate the rotating wheel to make the planetary gear correspond to the grinding circle one by one;

[0024] S2, the transmission tooth column meshes with the planetary gear and the lower gear, and the upper grinding disc and the lower grinding disc rotate to roughly grind the bearing;

[0025] S3, move the inner grinding disc downward and move the grinding circle downward, and the rotating ring drives the transmission tooth column to rotate and throws off the liquid and impurities;

[0026] S4, move the grinding circle upward and make the outer grinding disc, the inner grinding disc and the grinding circle be on the same horizontal plane, and finely grind the bearing;

[0027] S5, unload the ground bearing.

[0028] By adopting the above technical solution, by grinding the two end faces of the bearing by this method, the degree of automation is relatively high, and the grinding quality of the bearing can be improved.

[0029] In summary, compared with the prior art, the present invention includes at least one of the following beneficial technical effects:

[0030] 1. By first rough grinding the upper end surface of the bearing to make the heights of multiple bearings tend to be consistent, the stability during subsequent grinding of the upper and lower end surfaces of the bearing can be improved, thereby improving the grinding quality of the bearing.

[0031] 2. After rough grinding, the generated debris can be cleaned to improve the subsequent grinding quality, and after grinding, the planet gear can be cleaned to facilitate the continuous progress of the bearing grinding work. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0033] Figure 2 It is a schematic diagram of the structure of the planet gear and the lower grinding disc assembled in an embodiment of the present invention;

[0034] Figure 3 It is a schematic diagram of the structure of the lower grinding disc in an embodiment of the present invention;

[0035] Figure 4 It is a schematic diagram of the structure of the planet gear and the lower gear in an embodiment of the present invention;

[0036] Figure 5 It is a schematic diagram of the structure of the connecting column and the lower gear assembled in an embodiment of the present invention.

[0037] Description of the reference numerals: 1. Frame; 11. Planet gear; 111. Limit ring; 112. Workpiece groove; 12. Rotating wheel; 121. Inner tooth column; 122. Fourth rotation source; 13. Upper grinding disc; 14. Moving frame; 15. Rotating ring; 151. Control board; 16. Transmission tooth column; 2. Feeding mechanism; 21. Feeding disc; 211. Feeding port; 22. Dial; 23. Feeding frame; 24. Feeding wheel; 241. Feeding tooth column; 25. Stop bar; 3. Lower grinding disc; 31. Outer grinding disc; 32. Inner grinding disc; 321. First rotation source; 322. Third linear driver; 323. Second rotating frame; 33. Grinding ring; 331. Second linear driver; 34. Connecting column; 35. Lower gear; 4. First linear driver; 41. Second rotation source; 42. Driving column; 43. Support plate; 44. Liquid storage housing; 45. Cooling pipe; 5. Discharge port; 51. Discharge wheel; 52. Discharge tooth column; 6. Air blowing housing; 61. Air blowing pipe; 7. Third rotation source; 71. First rotating frame. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0038] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will combine the embodiments of the present invention Figures 1-5, the technical solutions of the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present invention.

[0039] In a first aspect, the present invention provides an end face grinding device for an equal cross-section thin-walled bearing, adopting the following technical solutions:

[0040] Referring to Figure 1 and Figure 2 , this embodiment provides an end face grinding device for an equal cross-section thin-walled bearing, including a frame 1, a planetary wheel 11, a rotating wheel 12, a feeding mechanism 2 for feeding the bearing, an upper grinding disc 13 for grinding the upper end face of the bearing, and a lower grinding disc 3 for grinding the lower end face of the bearing. A plurality of workpiece grooves 112 are annularly arranged on the planetary wheel 11, and limiting rings 111 are fixedly connected to both the upper and lower end faces of the planetary wheel 11. A plurality of internal tooth columns 121 capable of meshing with the planetary wheel 11 are annularly arranged on the upper end face of the rotating wheel 12. The feeding mechanism 2 is arranged on one side of the frame 1, and the upper grinding disc 13 and the lower grinding disc 3 are arranged on the other side of the frame 1. A first linear driver 4 is fixedly installed on the frame 1, and the driving shaft of the first linear driver 4 is fixedly connected to a moving frame 14. The first linear driver 4 can drive the moving frame 14 to move in the vertical direction. A rotating ring 15 is rotatably connected to the moving frame 14, and a plurality of transmission tooth columns 16 are annularly arranged on the lower end face of the rotating ring 15. A return spring is sleeved on the transmission tooth column 16.

[0041] When grinding the bearing, first, the bearing is conveyed into the workpiece groove 112 on the planetary wheel 11 through the feeding mechanism 2, and then the planetary wheel 11 carrying the bearing is conveyed onto the lower grinding disc 3. Then, the upper and lower end faces of the bearing can be ground by the rotation of the upper grinding disc 13 and the lower grinding disc 3 to improve work efficiency.

[0042] Referring to Figure 2 , Figure 3 , Figure 4 and Figure 5, the lower grinding disc 3 includes an outer grinding disc 31, an inner grinding disc 32, and a plurality of grinding rings 33. A plurality of spaces for accommodating the grinding rings 33 are formed between the outer grinding disc 31 and the inner grinding disc 32, and the three together form an annular shape. A first rotating source 321, a third rotating source 7, and a fourth rotating source 122 are fixedly installed on the frame 1. The third rotating source 7 is fixedly connected to a first rotating frame 71 through a gear set. The outer grinding disc 31 is fixedly connected to the top of the first rotating frame 71. The first rotating source 321 is fixedly connected to a second rotating frame 323 through a gear set. A third linear driver 322 is fixedly installed on the second rotating frame 323. The inner grinding disc 32 is fixedly connected to the drive shaft of the third linear driver 322. A second linear driver 331 is installed on the rotating frame. The drive shaft of the second linear driver 331 is fixedly connected to a connecting column 34. A lower gear 35 is fixedly sleeved on the connecting column 34. The grinding ring 33 is fixedly connected to the top of the connecting column 34. The fourth rotating source 122 can drive the rotating wheel 12 to rotate.

[0043] When it is necessary to rough grind the upper end face of the bearing, before the planet wheel 11 moves to the lower grinding disc 3, first move the inner grinding disc 32 downward so that a groove is formed between the inner grinding disc 32 and the grinding ring 33. When the planet wheel 11 moves onto the lower grinding disc 3, the planet wheel 11 enters this groove. At this time, the telescopic column is inserted into the tooth gap between the planet wheel 11 and the lower gear 35. Therefore, during the rotation of the lower grinding disc 3, the planet wheel 11 and the grinding ring 33 are relatively stationary, that is, the lower end face of the bearing and the grinding ring 33 are relatively stationary. Thus, when the upper grinding disc 13 and the lower grinding disc 3 rotate to grind the bearing, the upper end face of the bearing can be rough ground first to make the height of the bearing tend to be consistent, which is convenient for subsequent grinding of the bearing and improves the grinding quality.

[0044] Refer to Figure 1 , a second rotating source 41 is fixedly installed on the moving frame 14. The second rotating source 41 is fixedly connected to a drive column 42 through a gear set. The bottom of the drive column 42 is fixedly connected to a support plate 43. The upper grinding disc 13 is fixedly connected to the bottom of the support plate 43 through a support rod. A liquid storage housing 44 is fixedly connected to the side wall of the support plate 43. The bottom of the liquid outlet housing is fixedly communicated with a plurality of cooling pipes 45 passing through the upper grinding disc 13 to dissipate heat during the grinding process.

[0045] Refer to Figure 1, the feeding mechanism 2 includes a feeding tray 21, a dial 22, a feeding rack 23, a feeding wheel 24 and a stop bar 25. The feeding tray 21 is horizontally slidably connected to the frame 1. The feeding tray 21 moves towards the lower grinding disc 3 to facilitate the loading and unloading of bearings. The dial 22 is rotatably connected above the feeding tray 21. The dial 22 can drive the planet wheel 11 to revolve on the feeding tray 21. The feeding rack 23 includes four vertically extending support rods and air bags. Bearings are placed between the four support rods. By the expansion and contraction of the air bags, the bearings are individually dropped into the workpiece grooves 112 on the planet wheel 11. The feeding wheel 24 is rotatably connected to one side of the feeding rack 23. The feeding wheel 24 can be rotated by a motor. The upper end surface of the feeding wheel 24 is fixedly connected with a feeding tooth column 241. The feeding tooth column 241 meshes with the teeth of the planet wheel 11 to enable the planet wheel 11 to rotate, thereby feeding multiple workpiece grooves 112 on the planet wheel 11. A feeding port 211 for the planet wheel 11 to move onto the lower grinding disc 3 is opened on one side of the feeding tray 21 close to the lower grinding disc 3. The stop bar 25 is rotatably connected to one side of the feeding port 211. When the planet wheel 11 rotates to the feeding port 211, under the restriction of the stop bar 25, the planet wheel 11 moves onto the lower grinding disc 3. The control board 151 is arranged on the top of the rotating ring 15. A cylinder installed on the moving frame 14 is arranged on the top of the control board 151. The cylinder can drive the control board 151 to move in the vertical direction.

[0046] When bearings need to be fed, multiple bearings are vertically arranged on the feeding rack 23. By the contraction and expansion of the air bags, the bearings are individually dropped and fall into the workpiece grooves 112 on the planet wheel 11. Then, the feeding wheel 24 is rotated to rotate the planet wheel 11 to feed the bearings. Then, the dial 22 is rotated to drive the planet wheel 11 to rotate and repeat the above steps to feed multiple planet wheels 11. Then, the upper grinding disc 13 is lowered, and the control board 151 is raised. The transmission tooth column 16 is raised accordingly and remains in contact with the control board 151 to provide space for the planet wheel 11 to move onto the lower grinding disc 3. As the planet wheel 11 rotates on the feeding tray 21, when the planet wheel 11 rotates to the position of the stop bar 25, under the block of the stop bar 25, at this time, the inner grinding disc 32 descends. The inner grinding disc 32 and the grinding ring 33 form multiple grooves for carrying the planet wheel 11. Then, by the rotation of the inner grinding disc 32 and the feeding wheel 24, the planet wheel 11 moves in an "∞" shape into the grooves formed by the grinding ring 33 and the inner grinding disc 32 to complete the feeding of the bearings. When the grinding is completed, the planet wheel 11 can also be unloaded by the rotation of the inner grinding disc 32 and the feeding wheel 24, so as to reduce the working intensity of the staff and improve the working efficiency.

[0047] Refer to Figure 1, a blanking opening 5 is provided on the loading tray 21, and a blanking wheel 51 is rotatably connected to the loading tray 21 on one side of the blanking opening 5. A blanking tooth column 52 is fixedly connected to the upper end surface of the blanking wheel 51. When the planet wheel 11 moves to the blanking opening 5, the polished bearings will fall from the blanking opening 5. Through the rotation of the blanking wheel 51 and the engagement between the blanking tooth column 52 and the teeth on the planet wheel 11, the planet wheel 11 can be driven to rotate self - sufficiently, so that the bearings on the planet wheel 11 fall one by one and are collected, thereby improving work efficiency. A blowing air housing 6 is fixedly connected to the loading tray 21, and a blowing air pipe 61 for cleaning the planet wheel 11 is communicated with the top of the blowing air housing 6. Due to the coolant, there will be coolant adhering to the surface of the planet wheel 11. When the planet wheel 11 moves into the blowing air housing 6, the airflow generated by the blowing air pipe 61 can clean the surface of the planet wheel 11, facilitating the subsequent work.

[0048] The implementation principle of an end - face grinding device for an equal - cross - section thin - wall bearing in an embodiment of the present invention is as follows: First, move the loading tray 21 to make it close to the lower grinding disc 3, then place the planet wheel 11 on the loading tray 21. The loading wheel 24 rotates to drive the planet wheel 11 to rotate, so that the bearings fall into the workpiece grooves 112 on the planet wheel 11 one by one. Rotate the dial 22 to make the planet wheel 11 filled with bearings revolve. At the same time, lower the upper grinding disc 13 and raise the control plate 151 and the inner grinding disc 32. The transmission tooth column 16 moves upward under the action of the return spring and keeps in contact with the control plate 151. When the planet wheel 11 rotates to the loading opening 211 and under the action of the stop rod 25, it moves above the grinding circle 33. Then, make multiple planet wheels 11 move onto the grinding circle 33 one by one, and then lower the control plate 151 and the transmission tooth column 16.

[0049] At this time, the transmission tooth column 16 is located in the tooth gap between the planet wheel 11 and the lower gear 35. Then, make the upper grinding disc 13 and the lower grinding disc 3 rotate in opposite directions. Under the restriction of the transmission tooth column 16, the planet wheel 11 and the grinding circle 33 are relatively stationary. The upper grinding disc 13 grinds the top of the bearing to make its height tend to be consistent. Then, lower the inner grinding disc 32 and the grinding circle 33, so that a gap is generated between the grinding circle 33 and the inner grinding disc 32. Then, make the rotating ring 15 drive the planet wheel 11 to rotate, thereby throwing out the generated debris.

[0050] Then, make the outer grinding disc 3, the inner grinding disc 32 and the grinding circle 33 be on the same horizontal plane, and make the upper grinding disc 13 and the lower grinding disc 3 rotate to perform fine grinding on the bearing. After the fine grinding is completed, lower the grinding circle 33. Due to the restriction of the upper grinding disc 13 and the revolution of the planet wheel 11, the planet wheel 11 synchronously falls onto the grinding circle 33.

[0051] Finally, raise the grinding ring 33 and the inner grinding disc 32, and move the control board 151 and the transmission gear column 16 upward. Then, rotate the inner grinding disc 32 and the dial 22, and under the action of the shift lever 25, the planet gear 11 starts to feed materials in an "∞" shape.

[0052] In a second aspect, the present invention provides an end face grinding method for an equal cross-section thin-walled bearing, which is applied to an end face grinding device for an equal cross-section thin-walled bearing in the first aspect. The method is as follows:

[0053] S1, Feed the bearings to be ground onto the planet gear 11 one by one. Move the inner grinding disc 32 upward and the upper grinding disc 13 downward. Move the feeding tray 21 close to the lower grinding disc 3. Rotate the dial 22 and under the action of the shift lever 25, move the planet gear 11 onto the grinding ring 33. Rotate the rotating wheel 12 to make the planet gear 11 correspond to the grinding ring 33 one by one;

[0054] S2, The transmission gear column 16 meshes with the planet gear 11 and the lower gear 35, and the upper grinding disc 13 and the lower grinding disc 3 rotate to roughly grind the bearing;

[0055] S3, Move the inner grinding disc 32 downward and the grinding ring 33 downward. Rotate the ring 15 to drive the transmission gear column 16 to rotate and throw off the liquid and impurities;

[0056] S4, Move the grinding ring 33 upward and make the outer grinding disc 31, the inner grinding disc 32 and the grinding ring 33 be on the same horizontal plane, and finely grind the bearing;

[0057] S5, Discharge the ground bearings.

Claims

1. A uniform cross-section thin-walled bearing end surface grinding device, comprising a frame (1), a plurality of planetary wheels (11) for supporting the bearings, a rotating wheel (12), a feeding mechanism (2) provided on the frame (1), and an upper grinding disc (13), characterized in that: A movable frame (14) is vertically slidably connected to the frame (1), an upper grinding disc (13) is arranged on the movable frame (14), a rotating ring (15) is rotatably connected to the movable frame (14), and a transmission gear column (16) capable of vertical movement is provided on the lower end surface of the rotating ring (15); A lower grinding disc (3) for grinding the lower end surface of the bearing is provided below the upper grinding disc (13), and the lower grinding disc (3) includes an outer grinding disc (31), an inner grinding disc (32) capable of vertical movement, and a plurality of grinding rings (33). A plurality of spaces for accommodating the grinding rings (33) are formed between the outer grinding disc (31) and the inner grinding disc (32), and the three are collectively in a circular ring shape; the number of the grinding rings (33) is equal to that of the planetary wheel (11), and the upper and lower end surfaces of the planetary wheel (11) are fixedly connected to the limiting ring (111), and the outer diameter of the limiting ring (111) is equal to the diameter of the grinding ring (33). A lower gear (35) is fixedly connected to the lower side of the grinding ring (33) through a connecting column (34), and the number of teeth of the lower gear (35) is equal to that of the planetary wheel (11); The rotating wheel (12) is arranged at the center of the inner grinding disc (32), and the upper end surface of the rotating wheel (12) is fixedly connected to the inner tooth column (121).

2. The end face grinding device for an isosection thin-walled bearing according to claim 1, wherein: The feeding mechanism (2) includes a feeding plate (21) slidably connected to the frame (1) in a transverse direction, a dial (22) for toggling the planetary wheel (11) is rotatably connected to the top of the feeding plate (21), a feeding frame (23) is fixedly connected to the feeding plate (21), an air bag is installed on the feeding frame (23) for causing the bearing to fall individually, the feeding plate (21) is rotatably connected to the feeding wheel (24), the upper end surface of the feeding wheel (24) is fixedly connected to the feeding tooth column (241), and the feeding plate A stopper (25) is rotatably connected to one side of the (21) close to the lower grinding disc (3), and a loading port (211) for the planetary wheel (11) to move to the grinding ring (33) is provided on one side of the loading disc (21) close to the lower grinding disc (3). A first rotating source (321) is installed on the frame (1), and the first rotating source (321) can drive the inner grinding disc (32) to rotate through the second rotating frame (323). A control plate (151) is vertically slidably connected to the rotating ring (15).

3. The end face grinding device for an isosection thin-walled bearing according to claim 2, characterized in that: A first linear driver (4) is mounted on the frame (1). The moving frame (14) is fixedly connected to the drive shaft of the first linear driver (4). A second rotating source (41) is mounted on the moving frame (14). A drive column (42) is rotatably connected to the moving frame (14). The second rotating source (41) can drive the drive column (42) to rotate. A support plate (43) is fixedly connected to the bottom of the drive column (42). The upper grinding disc (13) is fixedly connected to the bottom of the support plate (43) through a support rod. A liquid storage housing (44) is fixedly connected to the side wall of the support plate (43). A plurality of cooling pipes (45) penetrating the upper grinding disc (13) are communicated with the bottom of the liquid storage housing (44).

4. The end face grinding device for an isosection thin-wall bearing according to claim 2, characterized in that: A second linear driver (331) is mounted at the bottom of the connecting column (34). The second linear driver (331) can drive the connecting column (34) and the grinding ring (33) to move in the vertical direction.

5. The end face grinding device for an isometric thin-walled bearing according to claim 2, characterized in that: A third linear driver (322) is mounted on the second rotating frame (323). The inner grinding disc (3) is fixedly connected to the drive shaft of the third linear driver (322).

6. The end face grinding device for an equal cross-section thin-walled bearing according to claim 2, wherein: A blanking port (5) is formed in the loading tray (21). A blanking wheel (51) is rotatably connected to the loading tray (21) on one side of the blanking port (5). A blanking tooth column (52) is fixedly connected to the upper end surface of the blanking wheel (51).

7. An end face grinding device for an equal cross-section thin-walled bearing according to claim 2, characterized in that: A blowing housing (6) is fixedly connected to the loading tray (21). A blowing pipe (61) for cleaning the planet wheel (11) is communicated with the top of the blowing housing ().

8. A method for grinding the end face of an equal-section thin-wall bearing, characterized in that, Applied to an equal-section thin-wall bearing end face grinding device according to claim 3, the method is as follows: S1, successively load the bearings to be ground onto the planet wheel (11), move the inner grinding disc (32) upward and move the upper grinding disc (13) downward. Move the loading tray (21) close to the lower grinding disc (3). Rotate the dial (22) and move the planet wheel (11) to the grinding ring (33) under the action of the stop rod (25). Rotate the rotating wheel (12) to make the planet wheel (11) correspond to the grinding ring (33) one by one; S2, the transmission tooth column (16) meshes with the planet wheel (11) and the lower gear (35), and the upper grinding disc (13) and the lower grinding disc (3) rotate to roughly grind the bearing; S3, move the inner grinding disc (32) downward and move the grinding ring (33) downward. The rotating ring (15) drives the transmission tooth column (16) to rotate and flings off the liquid and impurities; S4, move the grinding ring (33) upward and make the outer grinding disc (31), the inner grinding disc (32) and the grinding ring (33) be on the same horizontal plane, and finely grind the bearing; S5, unload the ground bearings.

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