Surface polishing treatment device for bearing machining

Abstract

The invention relates to the technical field of bearing machining, and discloses a surface polishing treatment device for bearing machining, which comprises a bottom plate, a base, a machine body, a supporting rod, a main shaft mechanism, a cantilever rod and a stable supporting mechanism, and is characterized in that a piezoelectric actuating mechanism is arranged, and a piezoelectric sensing element is embedded in a high-speed rotating grinding wheel; friction resistance in the horizontal direction and vibration impact force borne by the grinding wheel in the cutting process are captured in real time, physical signals are transmitted to the piezoelectric sensor fixed to the workpiece bracket, the distance between a signal source and a force bearing point is shortened through built-in sensing, signal attenuation caused by long-distance transmission is avoided, and the machining precision of the grinding wheel is improved. Instantaneous impact and initial displacement of vibration are accurately captured, a physical basis is provided for closed-loop control, a displacement amplification mechanism and a first-stage bearing mechanism are arranged, a lever group converts infinitesimal displacement of an actuator into large-amplitude displacement, meanwhile, a spring buffers high-frequency impact, in the first-stage bearing mechanism, a gear plate drives a coaxial gear set, and in the second-stage bearing mechanism, the gear plate drives the coaxial gear set; and the horizontal displacement is converted into vertical lifting force.

Description

Technical Field

[0001] The present invention relates to the technical field of bearing processing, and more specifically to a surface grinding treatment device for bearing processing. Background Art

[0002] A vertical grinding machine is a precision device widely used in the field of machining, mainly used for high-precision surface, end face or outer circle grinding of workpieces. The spindle of the vertical grinding machine is perpendicular to the workbench, the workpiece is usually placed horizontally, and the external housing generally adopts a high-rigidity bed body and column design.

[0003] Existing equipment usually installs a force sensor at the end of the cantilever, that is, far from the grinding wheel or the spindle housing. The force on the grinding wheel needs to be transmitted through the spindle bearing to the cantilever beam and then to the sensor base, so there will be a phase lag, which cannot be fed back in real time, nor can it detect the vibration of the cantilever structure in real time and perform vibration compensation in time.

[0004] During the working process, the rotating arm of the existing structure will have low-frequency swaying, resulting in the grinding wheel periodically squeezing the workpiece, forming irregular wavy lines on the surface. After a long time, the contact stress concentration at the bearing increases, the fatigue life will be reduced, and the geometric accuracy of the workpiece will become poor and the size will also be incorrect. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a surface grinding treatment device for bearing processing to solve the problems existing in the above-mentioned background art.

[0006] The present invention provides the following technical solution: A surface grinding treatment device for bearing processing, including a bottom plate, a base, a fuselage, a support rod, a spindle mechanism and a cantilever rod. The top of the bottom plate is fixedly connected with a base. A fuselage is arranged on one side of the top of the bottom plate close to the base. A cantilever rod is arranged on the top of the fuselage. A dust collection bin is arranged on one side of the middle of the fuselage close to the bottom plate. A stable lifting mechanism is arranged on the top of the dust collection bin. A piezoelectric stability mechanism is arranged in the middle of the stable lifting mechanism. A spindle mechanism is arranged on one side of the cantilever rod close to the base. A support rod is arranged in the middle of the spindle mechanism;

[0007] Further, a round shaft is arranged on one side of the cantilever rod close to the base. The other side of the round shaft is fixedly connected with a vertical rod. The top of the vertical rod is fixedly connected with a starting plate. A motor is arranged on the top of the starting plate close to the round shaft. The bottom of the vertical rod is fixedly connected with a grinding wheel.

[0008] Furthermore, when the structure starts to work, the vertical rod slowly moves downward close to the workpiece. The motor drives the grinding wheel to rotate at a set speed. The fixing plate drives the workpiece to move along a preset trajectory. At the same time, the grinding wheel continuously rotates to cut the workpiece. During the working process, the grinding wheel is continuously affected by frictional resistance and cutting force.

[0009] Furthermore, a fixing plate is fixedly connected to the top of the dust collection bin. There are turntables arranged on both sides of the fixing plate. A secondary plate is arranged on the side of the fixing plate close to the fuselage. A moving plate is arranged on the top of the fixing plate. A piezoelectric sensor is arranged on the top of the moving plate close to one side of the turntable. A piezoelectric actuating mechanism is arranged on the side of the piezoelectric sensor away from the turntable. A displacement amplification mechanism is arranged on the other side of the piezoelectric actuating mechanism. A primary supporting mechanism is arranged on the other side of the displacement amplification mechanism. Secondary supporting mechanisms are arranged on both sides of the primary supporting mechanism.

[0010] Furthermore, a piezoelectric element is arranged inside the grinding wheel. The piezoelectric sensor can sense the resistance in the horizontal direction received by the grinding wheel during work, and through the piezoelectric actuating mechanism, a displacement amplification mechanism, a primary supporting mechanism and a secondary supporting mechanism are arranged subsequently to actively raise the vertical rod in the vertical direction to compensate for and respond to the changes in resistance and cutting force.

[0011] Furthermore, a first transmission rod is arranged at the center on the side of the piezoelectric sensor away from the turntable. The other side of the first transmission rod is fixedly connected to an actuator. The other side of the actuator is fixedly connected to a sensing column. The other side of the sensing column is rotationally connected to a sensing column through a rotating shaft. The bottom of the sensing column is rotationally connected to a chassis through a rotating shaft. The top of the first displacement rod is rotationally connected to a second displacement rod through a rotating shaft. The other side of the second displacement rod is rotationally connected to a third displacement rod through a rotating shaft. The other side of the third displacement rod is fixedly connected to a second transmission rod. A spring is arranged on the side of the second transmission rod close to the third displacement rod. A limiting cylinder is arranged on the outer surface of the second transmission rod on the other side of the spring. The bottom of the limiting cylinder is fixedly connected to a bottom rod.

[0012] Furthermore, the piezoelectric sensor senses the piezoelectric change inside the vertical rod, and then transmits it to the actuator through the first transmission rod. The actuator converts the sensed piezoelectric force into the displacement of the sensing column in the horizontal direction. The sensing column pushes the first displacement rod. Under the connection and limitation of the shaft, the first displacement rod will drive the second displacement rod, and the displacement generated by the force received by the sensing column will be amplified by the third displacement rod, and a certain buffer is carried out at the spring to transmit the displacement to the second transmission rod.

[0013] Furthermore, a gear plate is provided on the other side of the transmission rod 2, and brackets are provided on both sides of the gear plate at a certain distance. A coaxial rod is provided on the top of the bracket, and a large gear is provided on the top of the coaxial rod relative to the position of the gear plate, and small gears are provided on both sides of the coaxial rod. Outer circular rods are provided on both sides of the bracket at a certain distance, and a gear column is provided inside the outer circular rod, and a top rod is fixedly connected to the top of the gear column.

[0014] Furthermore, the transmission rod 2 moves toward the gear plate under the restriction of the limiting cylinder, and the gear plate produces synchronous movement due to the force of the transmission rod 2. Under the action of gear meshing, the gear plate will drive the large gear to produce corresponding rotation. The small gear and the large gear are fixed on the coaxial rod together. When one side rotates, the structure on the entire coaxial rod will rotate coaxially. There is a gear column near the small gear through gear meshing. The gear column is nested inside the outer rod. Under the action of the gear meshing force, it will move in the vertical direction under the restriction of the outer rod, thereby lifting the top rod set above the coaxial rod.

[0015] Furthermore, a threaded rod is fixedly connected to the other side of the pinion, a concave gear is provided on the side of the threaded rod facing the bracket, a support rod is rotatably provided at the bottom of the concave gear, and a thin screw is provided on the side of the support rod close to the concave gear.

[0016] Furthermore, the threaded rod is fixedly connected to the pinion. When the pinion rotates, the threaded rod will also rotate coaxially. Under the mutual engagement of the gears, the concave gear will also rotate in the vertical direction. Under the restriction of the support rod, the fine screw arranged inside the concave gear will rotate along the predetermined pattern and slowly move upward, playing the role of a second layer of support.

[0017] Furthermore, a gear column is provided inside the outer rod, and a gear segment is provided at a position of the gear column close to the hollow portion of the outer rod.

[0018] The technical effects and advantages of the present invention are as follows:

[0019] 1. The present invention incorporates a piezoelectric actuator mechanism and embeds a piezoelectric sensing element within a high-speed rotating grinding wheel. Through a mechanical conduction path within the vertical rod, the device captures the horizontal frictional resistance and vibration impact force experienced by the grinding wheel during cutting in real time. The physical signal is then transmitted to a piezoelectric sensor fixed to the workpiece support. This built-in sensing shortens the distance between the signal source and the force point, avoiding signal attenuation caused by long-distance transmission. It accurately captures instantaneous impact and initial displacement at the beginning of vibration, providing a physical basis for closed-loop control.

[0020] 2. The present invention is provided with a displacement amplification mechanism and a primary supporting mechanism. The lever group converts the small displacement of the actuator into a large displacement, and the spring buffers the high-frequency impact. In the primary supporting mechanism, the gear plate drives the coaxial gear group to convert the horizontal displacement into a vertical lifting force. Through the secondary supporting mechanism, the threaded rod and the concave gear form a self-locking screw mechanism, which provides a secondary supporting force on the basis of the primary supporting mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 It is a schematic structural diagram of the spindle mechanism of the present invention.

[0023] Figure 3 It is a structural schematic diagram of the stable lifting mechanism of the present invention.

[0024] Figure 4 Schematic diagram of the structure of the piezoelectric actuator of the present invention.

[0025] Figure 5 It is a structural schematic diagram of the first-level supporting mechanism of the present invention.

[0026] Figure 6 It is a structural schematic diagram of the secondary supporting mechanism of the present invention.

[0027] Figure 7 It is a schematic diagram of the gear column structure of the present invention.

[0028] The accompanying drawings are marked as follows: 1. bottom plate; 2. base; 3. fuselage; 4. stable lifting mechanism; 401. turntable; 402. fixed plate; 403. auxiliary plate; 404. movable plate; 5. supporting rod; 6. main shaft mechanism; 601. motor; 602. starting plate; 603. circular shaft; 604. vertical rod; 605. grinding wheel; 7. cantilever rod; 8. piezoelectric stabilizing mechanism; 801. piezoelectric sensor; 802. piezoelectric actuating mechanism; 8021. transmission rod 1; 8022. actuator; 8023. sensing column; 803. displacement amplifying mechanism; 8031. base frame; 8032. Displacement rod one; 8033. Displacement rod two; 8034. Displacement rod three; 8035. Spring; 8036. Limit cylinder; 8037. Transmission rod two; 8038. Bottom rod; 804. Primary supporting mechanism; 8041. Gear plate; 8042. Bracket; 8043. Outer rod; 8044. Gear column; 8045. Small gear; 8046. Large gear; 8047. Coaxial rod; 8048. Top rod; 805. Secondary supporting mechanism; 8051. Threaded rod; 8052. Concave gear; 8053. Thin screw; 8054. Support rod; 9. Dust collection bin. DETAILED DESCRIPTION

[0029] The technical solutions in the present invention will be clearly and completely described below with reference to the accompanying drawings in the present invention. In addition, the forms of the various structures described in the following embodiments are merely examples, and the surface grinding treatment device for bearing processing involved in the present invention is not limited to the various structures described in the following embodiments. All other embodiments obtained without creative efforts by those of ordinary skill in the art belong to the scope of protection of the present invention.

[0030] Referring to Figure 1 , the present invention provides a surface grinding treatment device for bearing processing, including a base plate 1, a pedestal 2, a fuselage 3, a support rod 5, a main shaft mechanism 6, and a cantilever rod 7. A pedestal 2 is fixedly connected to the top of the base plate 1. A fuselage 3 is arranged on one side of the top of the base plate 1 close to the pedestal 2. A cantilever rod 7 is arranged on the top of the fuselage 3. A dust collection bin 9 is arranged on one side of the middle of the fuselage 3 close to the base plate 1. A stable lifting mechanism 4 is arranged on the top of the dust collection bin 9. A piezoelectric stabilization mechanism 8 is arranged in the middle of the stable lifting mechanism 4. A main shaft mechanism 6 is arranged on one side of the cantilever rod 7 close to the pedestal 2. A support rod 5 is arranged in the middle of the main shaft mechanism 6;

[0031] Referring to Figure 1 and Figure 2 , a round shaft 603 is arranged on one side of the cantilever rod 7 close to the pedestal 2. The other side of the round shaft 603 is fixedly connected to a vertical rod 604. The top of the vertical rod 604 is fixedly connected to a starting plate 602. A motor 601 is arranged on one side of the top of the starting plate 602 close to the round shaft 603. The bottom of the vertical rod 604 is fixedly connected to a grinding wheel 605.

[0032] Referring to Figure 1 and Figure 2 , when the structure starts to work, the vertical rod 604 slowly moves downwards close to the workpiece. The motor 601 drives the grinding wheel 605 to rotate at a set speed. The fixing plate 402 drives the workpiece to move along a preset trajectory. At the same time, the grinding wheel 605 continuously rotates to cut the workpiece. During the working process, the grinding wheel 605 is continuously affected by frictional resistance and cutting force.

[0033] Referring to Figure 1 and Figure 3 , a fixing plate 402 is fixedly connected to the top of the dust collection bin 9. Turntables 401 are arranged on both sides of the fixing plate 402. A secondary plate 403 is arranged on one side of the fixing plate 402 close to the fuselage 3. A moving plate 404 is arranged on the top of the fixing plate 402. A piezoelectric sensor 801 is arranged on one side of the top of the moving plate 404 close to the turntable 401. A piezoelectric actuating mechanism 802 is arranged on the other side of the piezoelectric sensor 801 away from the turntable 401. A displacement amplification mechanism 803 is arranged on the other side of the piezoelectric actuating mechanism 802. A primary support mechanism 804 is arranged on the other side of the displacement amplification mechanism 803. Secondary support mechanisms 805 are arranged on both sides of the primary support mechanism 804.

[0034] Refer to Figure 2 and Figure 3 Inside the grinding wheel 605, a piezoelectric element is provided. Through the piezoelectric sensor 801, the resistance in the horizontal direction received by the grinding wheel 605 during operation can be sensed, and through the piezoelectric actuator mechanism 802, a displacement amplification mechanism 803, a primary support mechanism 804, and a secondary support mechanism 805 are subsequently provided to actively raise the vertical plumb rod 604 to compensate for and respond to changes in resistance and cutting force.

[0035] Refer to Figure 3 and Figure 4 On the central side of the piezoelectric sensor 801 away from the turntable 401, a first transmission rod 8021 is provided. On the other side of the first transmission rod 8021, an actuator 8022 is fixedly connected. On the other side of the actuator 8022, a sensing column 8023 is fixedly connected. On the other side of the sensing column 8023, a sensing column 8023 is rotationally connected through a rotating shaft. The bottom of the sensing column 8023 is rotationally connected to a chassis 8031 through a rotating shaft. The top of the first displacement rod 8032 is rotationally connected to a second displacement rod 8033 through a rotating shaft. The other side of the second displacement rod 8033 is rotationally connected to a third displacement rod 8034 through a rotating shaft. The other side of the third displacement rod 8034 is fixedly connected to a second transmission rod 8037. A spring 8035 is provided on the side of the second transmission rod 8037 close to the third displacement rod 8034. A limiting cylinder 8036 is provided on the outer surface of the second transmission rod 8037 on the other side of the spring 8035. The bottom of the limiting cylinder 8036 is fixedly connected to a bottom rod 8038.

[0036] Refer to Figure 4 When the piezoelectric sensor 801 senses the piezoelectric change inside the plumb rod 604, it is transmitted to the actuator 8022 through the first transmission rod 8021. The actuator 8022 converts the sensed piezoelectric force into the displacement of the sensing column 8023 in the horizontal direction. The sensing column 8023 pushes the first displacement rod 8032. Under the connection and limitation of the shaft, the first displacement rod 8032 will drive the second displacement rod 8033, and the displacement generated by the force received from the sensing column 8023 is amplified by the third displacement rod 8034, and after a certain buffer at the spring 8035, the displacement is transmitted to the second transmission rod 8037.

[0037] Refer to Figure 4 and Figure 5, on the other side of the second transmission rod 8037, there is a gear plate 8041. On both sides of the gear plate 8041, brackets 8042 are arranged at a certain distance. At the top of the bracket 8042, there is a coaxial rod 8047. At a position relative to the gear plate 8041 at the top of the coaxial rod 8047, there is a large gear 8046. On both sides of the coaxial rod 8047, there are small gears 8045. On both sides of the bracket 8042, outer circular rods 8043 are arranged at a certain distance. Inside the outer circular rod 8043, there is a gear column 8044. At the top of the gear column 8044, there is a top rod 8048 fixedly connected.

[0038] Refer to Figure 4 and Figure 5 , under the restriction of the limit cylinder 8036, the second transmission rod 8037 moves towards the gear plate 8041. The gear plate 8041 generates synchronous movement under the force of the second transmission rod 8037. Under the action of gear meshing, the gear plate 8041 will drive the large gear 8046 to rotate accordingly. The small gear 8045 and the large gear 8046 are jointly fixed on the coaxial rod 8047. When one rotates, the structures on the entire coaxial rod 8047 will rotate coaxially. Near the small gear 8045, there is a gear column 8044 through gear meshing. The gear column 8044 is nested inside the outer circular rod 8043. Under the action of the gear meshing force, it will move in the vertical direction under the restriction of the outer circular rod 8043, thereby lifting the top rod 8048 arranged above the coaxial rod 8047.

[0039] Refer to Figure 5 and Figure 6 , on the other side of the small gear 8045, there is a threaded rod 8051 fixedly connected. On the side of the threaded rod 8051 facing the bracket 8042, there is a concave gear 8052. At the bottom of the concave gear 8052, there is a support rod 8054 rotatably arranged. On the side of the support rod 8054 close to the concave gear 8052, there is a thin screw rod 8053.

[0040] Refer to Figure 5 and Figure 6 , the threaded rod 8051 is fixedly connected to the small gear 8045. When the small gear 8045 rotates, the threaded rod 8051 will also rotate coaxially. Under the mutual meshing of the gears, the concave gear 8052 will also rotate in the vertical direction. Under the restriction of the support rod 8054, the thin screw rod 8053 arranged inside the concave gear 8052 will rotate along the predetermined thread and slowly move upward, playing a second-layer supporting role.

[0041] Refer to Figure 6 and Figure 7 , inside the outer circular rod 8043, there is a gear column 8044. At a position of the gear column 8044 close to the hollow part of the outer circular rod 8043, there is a gear segment.

[0042] Working principle of the present invention: When the structure starts to work, the vertical rod 604 slowly moves downwards close to the workpiece. The motor 601 drives the grinding wheel 605 to rotate at a set speed. The fixed plate 402 drives the workpiece to move along a preset trajectory. At the same time, the grinding wheel 605 continuously rotates to cut the workpiece. During the working process, the grinding wheel 605 is continuously affected by frictional resistance and cutting force. A piezoelectric element is arranged inside the grinding wheel 605. Through the piezoelectric sensor 801, the resistance in the horizontal direction received by the grinding wheel 605 can be sensed during work. And through the piezoelectric actuating mechanism 802, a displacement amplification mechanism 803, a first-level supporting mechanism 804 and a second-level supporting mechanism 805 are subsequently arranged to actively lift the vertical rod 604 in the vertical direction to compensate for and respond to the changes in resistance and cutting force. The piezoelectric sensor 801 senses the piezoelectric change inside the vertical rod 604, and then transmits it to the actuator 8022 through the first transmission rod 8021. The actuator 8022 converts the sensed piezoelectric force into the displacement of the sensing column 8023 in the horizontal direction. The sensing column 8023 pushes the first displacement rod 8032. Under the connection and limitation of the shaft, the first displacement rod 8032 will drive the second displacement rod 8033, and amplify the displacement generated by the force given by the sensing column 8023 through the third displacement rod 8034. A certain buffer is carried out at the spring 8035 to transmit the displacement to the second transmission rod 8037. The second transmission rod 8037 moves towards the gear plate 8041 under the limitation of the limiting cylinder 8036. The gear plate 8041 makes a synchronous movement under the force of the second transmission rod 8037. Under the action of gear meshing, the gear plate 8041 will drive the large gear 8046 to rotate correspondingly. The small gear 8045 and the large gear 8046 are jointly fixed on the coaxial rod 8047. When one rotates, the structures on the entire coaxial rod 8047 will rotate coaxially. There is also a gear column 8044 meshed with the small gear 8045 through gears. The gear column 8044 is nested inside the outer circular rod 8043. Under the action of the gear meshing force, it will move in the vertical direction under the limitation of the outer circular rod 8043, thereby lifting the ejector rod 8048 arranged above the coaxial rod 8047 to complete the first-level supporting function at this place. The threaded rod 8051 is fixedly connected to the small gear 8045. When the small gear 8045 rotates, the threaded rod 8051 will also rotate coaxially. Under the mutual meshing of the gears, the concave gear 8052 will also rotate in the vertical direction. Under the limitation of the support rod 8054, the thin screw rod 8053 arranged inside the concave gear 8052 will rotate along the predetermined thread and slowly move upwards to play the second-level supporting role. This structure relies on piezoelectric transmission to convert the vibration and deflection caused by the frictional resistance and cutting force generated by the grinding wheel 605 on the vertical rod 604 into the support of the mechanical structure through piezoelectric sensing, and complete the stabilization of the vertical rod 604 in dynamic balance.

[0043] Finally, the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A surface grinding and polishing device for bearing processing, comprising a bottom plate (1), a base (2), a fuselage (3), a support rod (5), a main shaft mechanism (6) and a cantilever rod (7), characterized in that: A base (2) is fixedly connected to the top of the bottom plate (1). A fuselage (3) is arranged on one side of the top of the bottom plate (1) close to the base (2). A cantilever rod (7) is arranged on the top of the fuselage (3). A dust collection bin (9) is arranged on one side of the middle of the fuselage (3) close to the bottom plate (1). A stable lifting mechanism (4) is arranged on the top of the dust collection bin (9). A piezoelectric stability mechanism (8) is arranged in the middle of the stable lifting mechanism (4). A main shaft mechanism (6) is arranged on one side of the cantilever rod (7) close to the base (2). A support rod (5) is arranged in the middle of the main shaft mechanism (6).

2. The surface grinding and polishing treatment device for bearing processing according to claim 1, wherein: A round shaft (603) is arranged on one side of the cantilever rod (7) close to the base (2). A vertical rod (604) is fixedly connected to the other side of the round shaft (603). A starting plate (602) is fixedly connected to the top of the vertical rod (604). A motor (601) is arranged on one side of the top of the starting plate (602) close to the round shaft (603). A grinding wheel (605) is fixedly connected to the bottom of the vertical rod (604).

3. A surface grinding and polishing treatment device for bearing processing according to claim 1, characterized in that: A fixing plate (402) is fixedly connected to the top of the dust collection bin (9). Turntables (401) are arranged on both sides of the fixing plate (402). A secondary plate (403) is arranged on one side of the fixing plate (402) close to the fuselage (3). A moving plate (404) is arranged on the top of the fixing plate (402). A piezoelectric sensor (801) is arranged on one side of the top of the moving plate (404) close to the turntable (401). A piezoelectric actuating mechanism (802) is arranged on the side of the piezoelectric sensor (801) away from the turntable (401). A displacement amplification mechanism (803) is arranged on the other side of the piezoelectric actuating mechanism (802). A primary supporting mechanism (804) is arranged on the other side of the displacement amplification mechanism (803). Secondary supporting mechanisms (805) are arranged on both sides of the primary supporting mechanism (804).

4. A surface grinding and polishing treatment device for bearing processing according to claim 1, characterized in that: On the central part of the side of the piezoelectric sensor (801) away from the turntable (401), a first transmission rod (8021) is provided. On the other side of the first transmission rod (8021), an actuator (8022) is fixedly connected. On the other side of the actuator (8022), a sensing column (8023) is fixedly connected. On the other side of the sensing column (8023), a sensing column (8023) is rotatably connected through a rotating shaft. At the bottom of the sensing column (8023), a bottom frame (8031) is rotatably connected through a rotating shaft. At the top of the first displacement rod (8032), a second displacement rod (8033) is rotatably connected through a rotating shaft. On the other side of the second displacement rod (8033), a third displacement rod (8034) is rotatably connected through a rotating shaft. On the other side of the third displacement rod (8034), a second transmission rod (8037) is fixedly connected. On the side of the second transmission rod (8037) close to the third displacement rod (8034), a spring (8035) is provided. On the outer surface of the second transmission rod (8037) on the other side of the spring (8035), a limiting cylinder (8036) is provided. At the bottom of the limiting cylinder (8036), a bottom rod (8038) is fixedly connected.

5. The surface grinding and polishing device for bearing processing according to claim 1, characterized in that: On the other side of the second transmission rod (8037), a gear plate (8041) is provided. On both sides of the gear plate (8041) at a certain distance apart, brackets (8042) are provided. At the top of the brackets (8042), a coaxial rod (8047) is provided. At the position of the top of the coaxial rod (8047) relative to the gear plate (8041), a large gear (8046) is provided. On both sides of the coaxial rod (8047), small gears (8045) are provided. On both sides of the brackets (8042) at a certain distance apart, outer circular rods (8043) are provided. Inside the outer circular rods (8043), gear columns (8044) are provided. At the top of the gear columns (8044), a top rod (8048) is fixedly connected.

6. The surface grinding and treatment device for bearing processing according to claim 1, wherein: On the other side of the small gear (8045), a threaded rod (8051) is fixedly connected. On the side of the threaded rod (8051) facing the bracket (8042), a concave gear (8052) is provided. At the bottom of the concave gear (8052), a support rod (8054) is rotatably provided. On the side of the support rod (8054) close to the concave gear (8052), a thin screw rod (8053) is provided.

7. A surface grinding and polishing device for bearing processing according to claim 1, characterized in that: Inside the outer circular rod (8043), a gear column (8044) is provided. At the position of the gear column (8044) close to the hollow part of the outer circular rod (8043), a gear segment is provided.

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