A precision bearing width grinding device and grinding method thereof

Abstract

The invention discloses a precision bearing width grinding device and a grinding method thereof, belonging to the technical field of bearing processing, comprising a workbench, an L-shaped frame fixedly connected to the left side of the upper surface of the workbench, and a first hydraulic rod fixedly installed at the middle position of the upper surface of the L-shaped frame, the lower end of the first hydraulic rod penetrates the L-shaped frame and is fixedly connected to an upper grinding disc, a first motor is fixedly connected to the middle position of the upper surface of the workbench, the output shaft of the first motor is fixedly connected to a lower grinding disc corresponding to the upper grinding disc, one side of the outer edge of the lower grinding disc and the axis are fixedly connected with uniformly distributed fixed teeth, and the other side of the outer edge of the lower grinding disc is slidably connected with uniformly distributed movable teeth by setting an installation mechanism; and the upper surface of the lower grinding disc is rotatably meshed with uniformly distributed planetary wheels, which can reduce the difference in relative speed of workpieces at various positions, so that the surface of the workpiece is evenly ground and the processing accuracy is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of bearing processing, and more specifically, to a precision bearing width grinding device and a grinding method thereof. Background Art

[0002] Bearings are an important component in modern mechanical equipment. Their main function is to support the mechanical rotating body, reduce the friction coefficient during its movement, and ensure its rotation accuracy. Bearings are assembled from bearing outer rings, bearing inner rings, rollers, and bearing cages.

[0003] The bearing production process includes three steps: forging, heat treatment and grinding. Grinding is an important step to ensure the bearing accuracy. During the grinding process, a double-sided grinder is required to grind the outer ring and inner ring of the bearing to a suitable thickness to improve the bearing accuracy.

[0004] Double-sided grinders are mainly used for double-sided grinding of crystals or other mechanical parts with two parallel surfaces, especially for the processing of thin and brittle materials. They are suitable for plane grinding and polishing of mechanical seal rings, ceramic sheets, cylinder piston rings, oil pump blade bearing end faces of various materials, and metal materials such as silicon, germanium, quartz crystals, graphite, sapphire, optical crystals, glass, lithium niobate, cemented carbide, stainless steel, and powder metallurgy. During the processing, the double-sided grinder can remove materials from both sides of the workpiece at the same time through the relative movement between the workpiece and the upper and lower grinding discs, thereby improving the material removal efficiency. However, when processing the workpiece using this method, due to the rotation of the workpiece, the relative speed of each position on the workpiece is different, resulting in uneven material removal, which affects the surface accuracy after processing.

[0005] To this end, a precision bearing width grinding device and a grinding method thereof are provided. Summary of the invention

[0006] 1. Technical issues to be solved

[0007] In view of the problems existing in the prior art, the purpose of the present invention is to provide a precision bearing width grinding device and a grinding method thereof, which can reduce the difference in relative speed of the workpiece at various positions, make the workpiece surface grinded evenly, and improve the processing accuracy.

[0008] 2. Technical solution

[0009] To solve the above problems, the present invention adopts the following technical solutions.

[0010] A precision bearing width grinding device comprises a workbench, an L-shaped frame is fixedly connected to the left side of the upper surface of the workbench, and a first hydraulic rod is fixedly installed at the middle position of the upper surface of the L-shaped frame, the lower end of the first hydraulic rod passes through the L-shaped frame and is fixedly connected to an upper grinding disc, a first motor is fixedly connected to the middle position of the upper surface of the workbench, the output shaft of the first motor is fixedly connected to a lower grinding disc corresponding to the upper grinding disc, one side of the outer edge of the lower grinding disc and the axis are fixedly connected with uniformly distributed fixed teeth, and the other side of the outer edge of the lower grinding disc is slidably connected with uniformly distributed movable teeth through the installation mechanism; and the upper surface of the lower grinding disc is rotatably meshed with uniformly distributed planetary wheels, and a stabilizing mechanism is arranged inside the planetary wheels;

[0011] The stabilizing mechanism includes a cavity opened at the center of the planetary gear, a first gear is rotatably connected inside the cavity, a second motor is fixedly embedded in a position below the first gear inside the planetary gear, and the output shaft of the second motor is fixedly connected to the first gear, evenly distributed mounting grooves are opened at the outer edge of the upper surface of the planetary gear, annular grooves are opened at the middle position of the inner surface of the mounting grooves, and the annular grooves are communicated with the cavity, a first gear ring is rotatably connected inside the annular grooves, and the first gear is meshed with the first gear ring, and an evenly distributed clamping mechanism is provided on the inner surface of the first gear ring.

[0012] Furthermore, the clamping mechanism includes a slide groove opened on the inner surface of the first gear ring, a clamping block is slidably connected inside the slide groove, a cylindrical groove is opened inside the clamping block, a circular plate is slidably connected inside the cylindrical groove, a round rod is fixedly connected to the side of the circular plate close to the slide groove, an end of the round rod away from the circular plate passes through the clamping block and is fixedly connected to the inner surface of the slide groove, a first spring is mounted on the outer surface of the round rod, one end of the first spring is fixedly connected to the clamping block, and the other end of the first spring is fixedly connected to the inner surface of the slide groove.

[0013] Furthermore, a heat dissipation cavity is provided inside the planetary gear at a position above the first gear, a cylinder is rotatably connected to the center of the heat dissipation cavity, the lower end of the cylinder passes through the heat dissipation cavity and is connected to the first gear by means of a speed change mechanism, evenly distributed fan blades are fixedly connected to the outer surface of the top of the cylinder, circular grooves are symmetrically provided on both sides of the heat dissipation cavity, and the circular grooves are communicated with the mounting grooves.

[0014] Furthermore, the speed change mechanism includes a ring fixedly mounted on the upper surface of the first gear, a second gear ring is fixedly connected to the inner surface of the ring, a second gear is fixedly connected to the lower end of the cylinder, and the second gear is meshed with the second gear ring, and the transmission ratio of the second gear to the second gear ring is 2:1.

[0015] Furthermore, a filter plate is fixedly mounted on a side of the inner surface of the circular groove away from the heat dissipation cavity.

[0016] Furthermore, a brush plate is fixedly connected to the upper surface of the first gear ring, an opening is provided at a position where the top outer surface of the brush plate is aligned with the filter plate, and evenly distributed bristles are fixedly connected to the inside of the opening, and the bristles are rotatably matched with the filter plate.

[0017] Furthermore, oil storage chambers are symmetrically opened on both sides below the first gear inside the planetary gear, an oil outlet hole is opened at the top of the oil storage chamber, a one-way valve is fixedly installed inside the oil outlet hole, an oil inlet hole is opened at a position corresponding to the oil outlet hole at the bottom of the oil storage chamber, a rubber plug is threadedly connected to the inside of the oil inlet hole, and a push plate is slidably connected to the inside of the oil storage chamber, a second hydraulic rod is fixedly connected to the side of the outer surface of the push plate away from the oil outlet hole, and the second hydraulic rod is fixedly connected to the inner surface of the oil storage chamber on the side away from the push plate.

[0018] Furthermore, the mounting mechanism includes a movable plate, the upper surface of the movable plate is fixedly connected to the movable teeth, and the outer surfaces of the movable teeth on both sides of the movable plate are equipped with second springs, the upper end of the second spring is fixedly connected to the lower grinding disc, and the lower end of the second spring is fixedly connected to the movable plate.

[0019] Furthermore, a U-shaped plate is slidably inserted on one side of the outer surface of the lower grinding disc close to the movable plate, a slot matching the U-shaped plate is opened on the lower surface of the movable plate, and the U-shaped plate is movably embedded in the slot.

[0020] A precision bearing width grinding method comprises the following steps:

[0021] S1: Install the planetary wheel on the lower grinding disc through the mounting mechanism to ensure that the planetary wheel is meshed with the fixed teeth on the lower grinding disc;

[0022] S2: placing the bearing to be processed and ground in the mounting groove on the planetary wheel, and clamping the bearing by using the clamping mechanism in the mounting groove;

[0023] S3: Debug the pressure of the first hydraulic rod and move the upper grinding disc to contact the upper surface of the bearing;

[0024] S4: Turning on the power of the first motor and the second motor, and driving the first motor and the second motor to rotate, so that the lower grinding disc and the bearing rotate, thereby grinding the bearing;

[0025] S5: Take out the bearing ground in S4, place it in coolant for cleaning, and obtain a finished product.

[0026] 3. Beneficial effects

[0027] Compared with the prior art, the advantages of the present invention are:

[0028] (1) This solution can control the rotation speed of the bearing by setting a clamping mechanism and a stabilizing mechanism to ensure that the rotation speed of the bearing at each position is stable and the same, so that the grinder can grind the bearing surface evenly and improve the bearing grinding accuracy;

[0029] (2) This solution sets up a heat dissipation cavity, fan blades and other mechanisms. The first gear in the stabilizing mechanism drives the fan blades to rotate, generating airflow. The airflow flows through the circular groove to the bearing surface to cool the bearing.

[0030] (3) This solution can effectively increase the rotation speed of the fan blades and improve the cooling effect by setting a speed change mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a flow chart of the grinding method of the present invention;

[0032] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0033] Figure 3 It is a partial structural schematic diagram of the present invention;

[0034] Figure 4 is a cross-sectional view of the planetary gear of the present invention;

[0035] Figure 5 It is a structural schematic diagram of the stabilizing mechanism of the present invention;

[0036] Figure 6 It is a structural schematic diagram of the clamping mechanism of the present invention;

[0037] Figure 7 It is a structural schematic diagram of the speed change mechanism of the present invention;

[0038] Figure 8 For the present invention Figure 5 The enlarged view of point A in the middle;

[0039] Fig. 9 For the present invention Figure 5 The enlarged view of point B in the middle;

[0040] Fig.10 It is a structural schematic diagram of the installation mechanism of the present invention.

[0041] Description of the numbers in the figure:

[0042] 1. Workbench; 2. L-shaped frame; 3. First hydraulic rod; 4. Upper grinding disc; 5. Lower grinding disc; 6. First motor; 7. Fixed teeth; 8. Movable teeth; 9. Planetary gear; 10. Stabilizing mechanism; 101. First gear; 102. First gear ring; 103. Second motor; 104. Cavity; 105. Mounting groove; 106. Annular groove; 11. Clamping mechanism; 111. Clamping block; 112. Slide groove; 113. Round rod; 114. First spring; 115. Columnar groove; 116. Round plate; 12. Heat dissipation cavity; 13. Cylinder; 14. Fan blade; 15. Round groove; 16. Speed ​​change mechanism; 161. Circular ring; 162. Second gear ring; 163. Second gear; 17. Brush plate; 18. Brush; 19. Filter plate; 20. Oil storage chamber; 21. Second hydraulic rod; 22. Push plate; 23. Oil inlet hole; 24. Rubber plug; 25. Oil outlet hole; 26. One-way valve; 27. Mounting mechanism; 271. Movable plate; 272. Second spring; 28. U-shaped plate; 29. ​​Slot; 30. Opening. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0044] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0045] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] See also Figure 1-10, a precision bearing width grinding device, comprising a workbench 1, an L-shaped frame 2 is fixedly connected to the left side of the upper surface of the workbench 1, and a first hydraulic rod 3 is fixedly installed in the middle position of the upper surface of the L-shaped frame 2, the lower end of the first hydraulic rod 3 passes through the L-shaped frame 2 and is fixedly connected to an upper grinding disc 4, a first motor 6 is fixedly connected to the middle position of the upper surface of the workbench 1, the output shaft of the first motor 6 is fixedly connected to a lower grinding disc 5 corresponding to the upper grinding disc 4, one side of the outer edge of the lower grinding disc 5 and the axis are fixedly connected with uniformly distributed fixed teeth 7, and the other side of the outer edge of the lower grinding disc 5 is slidably connected with uniformly distributed movable teeth 8 by setting a mounting mechanism 27; and the upper surface of the lower grinding disc 5 is rotatably engaged with uniformly distributed planetary wheels 9, and a stabilizing mechanism 10 is arranged inside the planetary wheels 9;

[0047] The stabilizing mechanism 10 includes a cavity 104 opened at the inner center of the planetary gear 9, and a first gear 101 is rotatably connected inside the cavity 104. A second motor 103 is fixedly embedded in a position below the first gear 101 inside the planetary gear 9, and the output shaft of the second motor 103 is fixedly connected to the first gear 101. Evenly distributed mounting grooves 105 are opened at the outer edge of the upper surface of the planetary gear 9, and annular grooves 106 are opened at the middle position of the inner surface of the mounting grooves 105, and the annular grooves 106 are communicated with the cavity 104. A first gear ring 102 is rotatably connected inside the annular grooves 106, and the first gear 101 is meshed with the first gear ring 102. The inner surface of the first gear ring 102 is provided with evenly distributed clamping mechanisms 11.

[0048] During operation, when the double-sided grinder is grinding the bearing, the bearing itself will also rotate. Since the relative speed of the bearing at various positions is different, the material is removed unevenly, affecting the grinding accuracy of the bearing. The present invention can clamp the bearing placed in the mounting groove 105 by setting a clamping mechanism 11, connect the second motor 103 to an external power supply, and drive the second motor 103 to rotate, and the first gear 101 fixedly connected to the second motor 103 rotates accordingly. Since the first ring gear 102 is meshed with the first gear 101, the first ring gear 102 also rotates accordingly, and the bearing fixed in the first ring gear 102 by the clamping mechanism 11 also rotates accordingly, thereby controlling the rotation speed of the bearing to ensure that the rotation speed of the bearing at each position is stable and the same, so that the grinder can evenly grind the bearing surface and improve the bearing grinding accuracy.

[0049] As an embodiment of the present invention, Figure 6As shown, the clamping mechanism 11 includes a slide groove 112 opened on the inner surface of the first gear ring 102, and a clamping block 111 is slidably connected inside the slide groove 112. A cylindrical groove 115 is opened inside the clamping block 111, and a circular plate 116 is slidably connected inside the cylindrical groove 115. A round rod 113 is fixedly connected to the side of the circular plate 116 close to the slide groove 112, and one end of the round rod 113 away from the circular plate 116 passes through the clamping block 111 and is fixedly connected to the inner surface of the slide groove 112. A first spring 114 is mounted on the outer surface of the round rod 113, one end of the first spring 114 is fixedly connected to the clamping block 111, and the other end of the first spring 114 is fixedly connected to the inner surface of the slide groove 112.

[0050] During operation, by setting up the clamping mechanism 11, the bearing can be fixed to ensure that the bearing can rotate synchronously with the first gear ring 102. The specific operation is as follows: during the process of the bearing being inserted into the mounting groove 105, the bearing squeezes the clamping block 111 into the slide groove 112, and the first spring 114 fixedly installed between the clamping block 111 and the inner surface of the slide groove 112 is compressed. The first spring 114 generates a reverse force on the clamping block 111, so that the clamping block 111 presses against the bearing, thereby fixing the bearing.

[0051] As an embodiment of the present invention, Figure 7 As shown, a heat dissipation cavity 12 is provided inside the planetary gear 9 at a position above the first gear 101, and a cylinder 13 is rotatably connected to the center of the heat dissipation cavity 12. The lower end of the cylinder 13 passes through the heat dissipation cavity 12 and is connected to the first gear 101 by setting a speed change mechanism 16. The top outer surface of the cylinder 13 is fixedly connected with evenly distributed fan blades 14, and circular grooves 15 are symmetrically provided on both sides of the heat dissipation cavity 12, and the circular grooves 15 are communicated with the mounting grooves 105.

[0052] During operation, a large amount of heat is generated when the bearing is ground. The cylinder 13 is connected to the first gear 101 by setting a speed change mechanism 16. The cylinder 13 will rotate along with the first gear 101. Similarly, the fan blades 14 on the outer surface of the cylinder 13 will rotate accordingly, generating airflow that flows through the circular groove 15 to the bearing surface, thereby cooling the bearing.

[0053] As an embodiment of the present invention, Figure 7 As shown, the speed change mechanism 16 includes a ring 161 fixedly mounted on the upper surface of the first gear 101, the inner surface of the ring 161 is fixedly connected to the second gear ring 162, the lower end of the cylinder 13 is fixedly connected to the second gear 163, and the second gear 163 is meshed with the second gear ring 162, and the transmission ratio of the second gear 163 to the second gear ring 162 is 2:1.

[0054] During operation, by setting up the speed change mechanism 16, the rotation speed of the fan blades 14 can be increased, the air flow speed can be increased, and the heat dissipation effect can be enhanced. Since the second ring gear 162 is fixedly installed on the upper surface of the first gear 101, the second ring gear 162 rotates with the first gear 101. Because the second gear 163 is meshed with the second ring gear 162, and the transmission ratio of the second gear 163 to the second ring gear 162 is 2:1, the rotation speed of the second gear 163 is higher than that of the second ring gear 162. Therefore, the rotation of the fan blades 14 can be accelerated.

[0055] As an embodiment of the present invention, Figure 8 As shown, a filter plate 19 is fixedly mounted on a side of the inner surface of the circular groove 15 away from the heat dissipation cavity 12 .

[0056] During operation, since the double-sided grinder generates dust when grinding the bearing, and since the circular groove 15 is in an open state, the dust generated by grinding will enter the heat dissipation cavity 12 through the circular groove 15. By arranging a filter plate 19 inside the circular groove 15, the dust generated by grinding can be prevented from entering the heat dissipation cavity 12 through the circular groove 15.

[0057] As an embodiment of the present invention, Figure 8 As shown, a brush plate 17 is fixedly connected to the upper surface of the first gear ring 102 , an opening 30 is formed on the top outer surface of the brush plate 17 at a position aligned with the filter plate 19 , and evenly distributed bristles 18 are fixedly connected inside the opening 30 , and the bristles 18 are rotatably matched with the filter plate 19 .

[0058] During operation, dust accumulated on the filter plate 19 may cause blockage to the filter plate 19. By fixing the brush plate 17 on the first gear ring 102, when the first gear ring 102 rotates, the brush plate 17 fixedly installed on the upper surface of the first gear ring 102 will be driven to rotate synchronously, and the bristles 18 in the opening 30 on the brush plate 17 will rotate synchronously, so that the bristles 18 can clean the surface of the filter plate 19 to prevent the dust accumulated on the filter plate 19 from clogging the filter plate 19.

[0059] As an embodiment of the present invention, Fig. 9 As shown, oil storage chambers 20 are symmetrically opened on both sides below the first gear 101 inside the planetary gear 9, an oil outlet hole 25 is opened at the top of the oil storage chamber 20, a one-way valve 26 is fixedly installed inside the oil outlet hole 25, an oil inlet hole 23 is opened at the bottom of the oil storage chamber 20 at a position corresponding to the oil outlet hole 25, a rubber plug 24 is threadedly connected inside the oil inlet hole 23, and a push plate 22 is slidably connected inside the oil storage chamber 20, a second hydraulic rod 21 is fixedly connected to the side of the outer surface of the push plate 22 away from the oil outlet hole 25, and the side of the second hydraulic rod 21 away from the push plate 22 is fixedly connected to the inner surface of the oil storage chamber 20.

[0060] During operation, lubricating oil is stored in the oil storage chamber 20. By driving the second hydraulic rod 21 to extend, the push plate 22 can be driven to move, and the lubricating oil in the oil storage chamber 20 is squeezed to the surface of the first gear ring 102 and the first gear 101 through the one-way valve 26 to lubricate the first gear ring 102 and the first gear 101. The lubricating oil can be replenished in the oil storage chamber 20 through the oil inlet hole 23, and then the rubber plug 24 is screwed into the oil inlet hole 23.

[0061] As an embodiment of the present invention, Fig.10 As shown, the mounting mechanism 27 includes a movable plate 271, the upper surface of the movable plate 271 is fixedly connected to the movable teeth 8, and the outer surfaces of the movable teeth 8 located on both sides of the movable plate 271 are provided with second springs 272, the upper end of the second spring 272 is fixedly connected to the lower grinding disc 5, and the lower end of the second spring 272 is fixedly connected to the movable plate 271.

[0062] During operation, before grinding begins, the planetary wheel 9 needs to be placed on the lower grinding disc 5, and the planetary wheel 9 needs to be meshed with the fixed teeth 7. By setting the mounting mechanism 27, when installing the planetary wheel 9, it is only necessary to move the movable plate 271 downward so that the upper end of the movable tooth 8 is flush with the upper surface of the lower grinding disc 5. The portion of the movable tooth 8 on the upper surface of the lower grinding disc 5 forms a mounting opening, and the planetary wheel 9 can be installed from the mounting opening so that the planetary wheel 9 can mesh with the fixed teeth 7.

[0063] As an embodiment of the present invention, Fig.10 As shown, a U-shaped plate 28 is slidably inserted on one side of the outer surface of the lower grinding disc 5 close to the movable plate 271 , a slot 29 matching the U-shaped plate 28 is opened on the lower surface of the movable plate 271 , and the U-shaped plate 28 is movably embedded in the slot 29 .

[0064] During operation, after the planetary gear 9 is installed, the U-shaped plate 28 is moved so that the bottom of the U-shaped plate 28 is clamped in the clamping groove 29 on the lower surface of the movable plate 271, thereby fixing the movable plate 271 and improving stability.

[0065] A precision bearing width grinding method comprises the following steps:

[0066] S1: Install the planetary gear 9 on the lower grinding disc 5 through the mounting mechanism 27 to ensure that the planetary gear 9 is meshed with the fixed teeth 7 on the lower grinding disc 5;

[0067] S2: placing the bearing to be processed and ground in the mounting groove 105 on the planetary gear 9, and clamping the bearing by using the clamping mechanism 11 in the mounting groove 105;

[0068] S3: Debug the pressure of the first hydraulic rod 3 and move the upper grinding disc 4 to contact the upper surface of the bearing;

[0069] S4: Turning on the power of the first motor 6 and the second motor 103, and driving the first motor 6 and the second motor 103 to rotate, so that the lower grinding disc 5 and the bearing rotate, thereby grinding the bearing;

[0070] S5: Take out the bearing ground in S4, place it in coolant for cleaning, and obtain a finished product.

[0071] Principle of use: When the double-sided grinder is grinding the bearing, the bearing itself will also rotate. Since the relative speed of the bearing at various positions is different, the material is removed unevenly, affecting the grinding accuracy of the bearing. The present invention can clamp the bearing placed in the mounting groove 105 by setting a clamping mechanism 11, connect the second motor 103 to an external power supply, and drive the second motor 103 to rotate, and the first gear 101 fixedly connected to the second motor 103 rotates accordingly. Since the first ring gear 102 is meshed with the first gear 101, the first ring gear 102 also rotates accordingly, and the bearing fixed in the first ring gear 102 by the clamping mechanism 11 also rotates accordingly, thereby controlling the rotation speed of the bearing to ensure that the rotation speed of the bearing at each position is stable and the same, so that the grinder can evenly grind the bearing surface and improve the bearing grinding accuracy.

[0072] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A precision bearing width grinding device, comprising a workbench (1), characterized in that: The left side of the upper surface of the workbench (1) is fixedly connected to an L-shaped frame (2), and a first hydraulic rod (3) is fixedly installed in the middle position of the upper surface of the L-shaped frame (2), the lower end of the first hydraulic rod (3) penetrates the L-shaped frame (2) and is fixedly connected to an upper grinding disc (4), a first motor (6) is fixedly connected in the middle position of the upper surface of the workbench (1), the output shaft of the first motor (6) is fixedly connected to a lower grinding disc (5) corresponding to the upper grinding disc (4), one side of the outer edge of the lower grinding disc (5) and the axis are fixedly connected to uniformly distributed fixed teeth (7), and the other side of the outer edge of the lower grinding disc (5) is slidably connected to uniformly distributed movable teeth (8) through the installation mechanism (27); and the upper surface of the lower grinding disc (5) is rotatably engaged with uniformly distributed planetary wheels (9), and a stabilizing mechanism (10) is arranged inside the planetary wheels (9); The stabilizing mechanism (10) comprises a cavity (104) provided at the center of the planetary gear (9), a first gear (101) being rotatably connected inside the cavity (104), a second motor (103) being fixedly embedded at a position below the first gear (101) inside the planetary gear (9), and an output shaft of the second motor (103) being fixedly connected to the first gear (101), evenly distributed mounting grooves (105) being provided at the outer edge of the upper surface of the planetary gear (9), an annular groove (106) being provided at the middle position of the inner surface of each mounting groove (105), and each annular groove (106) being communicated with the cavity (104), a first gear ring (102) being rotatably connected inside each annular groove (106), and the first gear (101) being meshed with the first gear ring (102), and an evenly distributed clamping mechanism (11) being provided on the inner surface of the first gear ring (102); The clamping mechanism (11) comprises a slide groove (112) provided on the inner surface of the first gear ring (102), a clamping block (111) is slidably connected inside the slide groove (112), a cylindrical groove (115) is provided inside the clamping block (111), a circular plate (116) is slidably connected inside the cylindrical groove (115), a round rod (113) is fixedly connected to the side of the circular plate (116) close to the slide groove (112), an end of the round rod (113) away from the circular plate (116) passes through the clamping block (111) and is fixedly connected to the inner surface of the slide groove (112), a first spring (114) is sleeved on the outer surface of the round rod (113), one end of the first spring (114) is fixedly connected to the clamping block (111), and the other end of the first spring (114) is fixedly connected to the inner surface of the slide groove (112); A heat dissipation cavity (12) is provided inside the planetary gear (9) at a position above the first gear (101); a cylinder (13) is rotatably connected to the center of the heat dissipation cavity (12); the lower end of the cylinder (13) passes through the heat dissipation cavity (12) and is connected to the first gear (101) by means of a speed change mechanism (16); evenly distributed fan blades (14) are fixedly connected to the outer surface of the top of the cylinder (13); circular grooves (15) are symmetrically provided on both sides of the heat dissipation cavity (12), and the circular grooves (15) are communicated with the mounting groove (105); The speed change mechanism (16) comprises a circular ring (161) fixedly mounted on the upper surface of the first gear (101), the inner surface of the circular ring (161) is fixedly connected to a second gear ring (162), the lower end of the cylinder (13) is fixedly connected to a second gear (163), and the second gear (163) is meshed with the second gear ring (162), and the transmission ratio between the second gear (163) and the second gear ring (162) is 2:1; A filter plate (19) is fixedly mounted on a side of the inner surface of the circular groove (15) away from the heat dissipation cavity (12); A brush plate (17) is fixedly connected to the upper surface of the first gear ring (102); an opening (30) is provided on the top outer surface of the brush plate (17) at a position aligned with the filter plate (19); and evenly distributed bristles (18) are fixedly connected to the inside of the opening (30); and the bristles (18) are rotatably matched with the filter plate (19).

2. A precision bearing width grinding device according to claim 1, characterized in that: An oil storage chamber (20) is symmetrically provided on both sides of the planetary gear (9) below the first gear (101), an oil outlet hole (25) is provided on the top of the oil storage chamber (20), a one-way valve (26) is fixedly installed inside the oil outlet hole (25), an oil inlet hole (23) is provided at the bottom of the oil storage chamber (20) at a position corresponding to the oil outlet hole (25), a rubber plug (24) is threadedly connected inside the oil inlet hole (23), and a push plate (22) is slidably connected inside the oil storage chamber (20), a second hydraulic rod (21) is fixedly connected to the side of the outer surface of the push plate (22) away from the oil outlet hole (25), and the side of the second hydraulic rod (21) away from the push plate (22) is fixedly connected to the inner surface of the oil storage chamber (20).

3. The precision bearing width grinding device according to claim 1, characterized in that: The mounting mechanism (27) comprises a movable plate (271), the upper surface of the movable plate (271) being fixedly connected to the movable teeth (8), and the outer surfaces of the movable teeth (8) located on both sides of the movable plate (271) are sleeved with second springs (272), the upper end of the second spring (272) being fixedly connected to the lower grinding disc (5), and the lower end of the second spring (272) being fixedly connected to the movable plate (271).

4. A precision bearing width grinding device according to claim 3, characterized in that: A U-shaped plate (28) is slidably inserted on one side of the outer surface of the lower grinding disc (5) close to the movable plate (271), a clamping groove (29) adapted to the U-shaped plate (28) is opened on the lower surface of the movable plate (271), and the U-shaped plate (28) is movably embedded in the clamping groove (29).

5. A precision bearing width grinding method, which is applicable to the precision bearing width grinding device according to any one of claims 1 to 4, characterized in that: The following steps are involved: S1: Installing the planetary wheel (9) on the lower grinding disc (5) through the installation mechanism (27) to ensure that the planetary wheel (9) is meshed with the fixed teeth (7) on the lower grinding disc (5); S2: placing the bearing to be processed and ground in the mounting groove (105) on the planetary wheel (9), and clamping the bearing using the clamping mechanism (11) in the mounting groove (105); S3: Debugging the pressure of the first hydraulic rod (3) and moving the upper grinding disc (4) to contact the upper surface of the bearing; S4: turning on the power of the first motor (6) and the second motor (103), and driving the first motor (6) and the second motor (103) to rotate, so that the lower grinding disc (5) and the bearing rotate, thereby grinding the bearing; S5: Take out the bearing ground in S4, place it in coolant for cleaning, and obtain a finished product.

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