Graphite particle assembling device for oil-free self-lubricating bearing

Abstract

The application discloses graphite particle assembling equipment for oil-free self-lubricating bearings. The application comprises an assembling frame and a bearing bush respectively. A three-axis moving platform is installed on the back of the assembling frame. An assembling seat is movably arranged on the surface of the three-axis moving platform. A visual identification camera, a negative pressure suction module and a cloth air distribution module are installed in the assembling seat respectively. A graphite particle code disc and a glue box are respectively clamped on the top surface of the assembling frame. A screw rod driving module a and a screw rod driving module b are respectively installed in the assembling frame. A clamping module for clamping the bearing bush is installed on the surface of the assembling frame and is driven by the screw rod driving module a. Through the arrangement of the three-axis moving platform, the visual identification camera and other structures, on one hand, the automatic assembling work of the graphite particles on the bearing bush can be automatically completed; on the other hand, after assembling, the two ends of the graphite particle body can be simultaneously trimmed through a shaping mechanism.

Description

Technical Field

[0001] This invention relates to the field of graphite particle assembly equipment technology, and more specifically, to an oil-free self-lubricating bearing graphite particle assembly equipment. Background Technology

[0002] Self-lubricating bearings are a type of sliding bearing, typically using copper-based bushings with a certain number of graphite holes. Graphite cylindrical particles are glued into these holes, acting as a solid self-lubricating material. The production process generally involves manually coating the graphite cylindrical particles with epoxy resin, then manually inserting them into the graphite holes of the copper-based bushing. In recent years, China has begun research and development on automatic self-lubricating bearing assembly machines, but so far without success.

[0003] To address the problems mentioned in the background art, the prior art, patent document CN109296653A, discloses an automatic assembly machine for self-lubricating bearing graphite particles based on vision recognition. This assembly machine uses a vision recognition system to accurately measure and position the graphite holes in the self-lubricating bearing bushing workpiece. An automatic dispensing system applies an appropriate amount of adhesive to the inner wall of the precisely measured and positioned graphite hole. An automatic graphite particle inserting mechanism then inserts the graphite particles into the precisely measured, positioned, and adhesive-coated graphite holes, thus achieving automatic assembly of the self-lubricating bearing graphite particles. However, the aforementioned assembly machine cannot perform double-end shaping on the assembled graphite particles to ensure that both ends of the graphite particles are adapted to the inner and outer diameters of the bushing, respectively. Therefore, this invention provides an oil-free self-lubricating bearing graphite particle assembly device to solve the problems mentioned in the background art. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, the present invention aims to provide an oil-free self-lubricating bearing graphite particle assembly device. Through the setup of a three-axis moving platform, a visual recognition camera, and other structures, the present invention can automatically complete the automatic assembly of graphite particles on the bearing bushing. Furthermore, after assembly, the two ends of the assembled graphite particle body can be simultaneously trimmed by a shaping mechanism.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: an oil-free self-lubricating bearing graphite particle assembly device. The technical solution comprises an assembly frame and a bearing bushing. A three-axis moving platform is mounted on the back of the assembly frame. An assembly seat is mounted on the surface of the three-axis moving platform. A visual recognition camera, a negative pressure suction module, and a wind distribution module are respectively installed inside the assembly seat. A graphite particle encoder and a glue box are respectively clamped to the top surface of the assembly frame. A lead screw drive module a and a lead screw drive module b are respectively installed inside the assembly frame. A clamping module driven by lead screw drive module a and used for clamping the bearing bushing is mounted on the surface of the assembly frame. A shaping mechanism for synchronously shaping the inner and outer walls of the bearing bushing is connected to the peripheral side of lead screw drive module b.

[0008] As a preferred embodiment, the surface of the graphite grain encoder is evenly distributed with graphite grain grooves, and the inner wall of each graphite grain groove is fitted with a graphite grain body. The top surface of the glue box is fixedly connected to an impregnation tube. The top surface of the assembly frame is fixedly provided with a slot that cooperates with the graphite grain encoder and the glue box. The end face of the assembly frame is fixedly installed with a central control host.

[0009] As a preferred embodiment, the three-axis moving platform includes a lifting platform and a longitudinal moving frame. A set of vertically arranged vertical push rods are installed between the relative surfaces of the lifting platform and the assembly frame, and a set of horizontally arranged longitudinal push rods are installed between the relative surfaces of the longitudinal moving frame and the lifting platform. A lead screw drive module c is installed inside the longitudinal moving frame, and the peripheral side of the lead screw drive module c is connected to the assembly seat for transmission.

[0010] As a preferred embodiment, the negative pressure suction module includes a suction pump fixed to the surface of the mounting base and a graphite particle suction tube fixed inside the mounting base and arranged vertically. The port of the suction pump is fixedly connected to the graphite particle suction tube through a negative pressure pipe. A pneumatic probe electrically connected to the central control host is fixedly installed inside the negative pressure pipe. A negative pressure suction channel with a bottom opening and connected to the negative pressure pipe is opened inside the graphite particle suction tube. A suction head is fixedly installed at the bottom of the graphite particle suction tube. The outer diameter of the suction head is 0.6 to 0.9 times the outer diameter of the graphite particle itself.

[0011] As a preferred embodiment, the clamping module includes a fixed clamping seat fixed to the surface of the assembly frame and a movable clamping seat slidably connected to the inner wall of the assembly frame and driven by a lead screw drive module a. The inner wall of the movable clamping seat is rotatably connected to a driven clamping ring, and the inner wall of the fixed clamping seat is rotatably connected to an active clamping ring driven by a rotary motor. The inner and outer diameters of the active and driven clamping rings are the same. The bearing bushing is clamped between the active and driven clamping rings. The outer diameter of the active clamping ring is 0.85 times the outer diameter of the bearing bushing, and the inner diameter of the active clamping ring is the same as the inner diameter of the bearing bushing.

[0012] As a preferred embodiment, the shaping mechanism includes a shaping frame a slidably connected to the assembly frame and driven by a lead screw drive module b. A grinding shaft coaxially arranged with the bearing bushing is rotatably connected to the inner wall of the shaping frame a. A grinding motor is mounted on the side of the shaping frame a. The output shaft end of the grinding motor is connected to the grinding shaft via a chain. A rotary grinding seat is fixedly mounted at the end of the grinding shaft. A ring cutter is fixedly mounted on the end face of the rotary grinding seat. Two symmetrically arranged grinding ring brushes are fixedly mounted on the circumferential side of the rotary grinding seat. A dust suction chamber is fixedly opened inside the rotary grinding seat. A set of negative pressure suction holes arranged in a circumferential array and communicating with the dust suction chamber are opened inside the rotary grinding seat and at the position corresponding to the two grinding ring brushes. A dust suction channel communicating with the dust suction chamber is fixedly installed at the axis position of the grinding shaft. A vacuum cleaner is fixedly mounted on the back of the shaping frame a. The port of the vacuum cleaner is rotatably connected to the dust suction channel through a pipe. An external shaping component is mounted on the surface of the shaping frame a.

[0013] As a preferred embodiment, the outer diameter of the ring cutter is 0.9 times the inner diameter of the bearing bushing, the cutting edge shape of the ring cutter is "V" shaped, the grinding ring brush is a soft steel wire brush, and the outer diameter of the grinding ring brush is 1.15 times the inner diameter of the bearing bushing.

[0014] As a preferred embodiment, the external shaping assembly includes an annular sanding belt and a shaping frame b fixedly connected to the shaping frame a. An elastic pressure frame is provided below the shaping frame b. Two symmetrically arranged elastic pressure members are installed between the opposing surfaces of the shaping frame b and the elastic pressure frame. A drive roller is rotatably connected to the inner wall of the shaping frame b. Two driven rollers are rotatably connected to the inner wall of the elastic pressure frame. The peripheral surfaces of the drive roller and the two driven rollers are all connected to the annular sanding belt. A geared motor is fixedly installed on the surface of the shaping frame b. The output shaft end of the geared motor is fixedly connected to the drive roller.

[0015] As a preferred embodiment, the air distribution module includes a cooler fixed to the surface of the mounting base and an air outlet pipe vertically arranged and fixed inside the mounting base, with one end of the cooler's air outlet fixedly connected to the air outlet pipe via a connecting pipe.

[0016] As a preferred embodiment, the lead screw drive module a, lead screw drive module b, and lead screw drive module c all include a drive motor, and a transmission lead screw is fixedly installed on the output shaft end of the drive motor.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, the present invention provides an oil-free self-lubricating bearing graphite particle assembly device, which has the following beneficial effects:

[0019] This invention, through the setup of a three-axis moving platform and a visual recognition camera, can automatically assemble graphite particles onto a bearing bushing. Furthermore, after assembly, a shaping mechanism can simultaneously trim both ends of the assembled graphite particle body, ensuring that the top and bottom shapes of the graphite particle body match the inner and outer diameters of the bearing bushing. This technological achievement effectively improves both the aesthetics of the assembled graphite particles and the functionality of the recognition system. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of an oil-free self-lubricating bearing graphite particle assembly device according to the present invention;

[0021] Figure 2 For the present invention Figure 1 A magnified schematic diagram of the partial structure at point A in the middle;

[0022] Figure 3 For the present invention Figure 1 A magnified schematic diagram of the local structure at point B;

[0023] Figure 4 For the present invention Figure 1 A structural diagram from another perspective;

[0024] Figure 5 This is a schematic diagram of the structure of lead screw drive module a and lead screw drive module b of the present invention;

[0025] Figure 6 For the present invention Figure 5 A magnified schematic diagram of the structure at point C in the middle;

[0026] Figure 7 This is a schematic cross-sectional view of the bearing bushing and driven clamping ring of the present invention.

[0027] Figure 8 For the present invention Figure 7 A magnified schematic diagram of the structure at point D.

[0028] In the diagram: 1. Assembly frame; 2. Bearing bushing; 3. Assembly base; 4. Vision recognition camera; 5. Graphite particle encoder; 6. Glue box; 7. Screw drive module a; 8. Screw drive module b; 9. Central control unit; 10. Lifting platform; 11. Longitudinal frame shifter; 12. Vertical push rod; 13. Longitudinal push rod; 14. Screw drive module c; 15. Suction pump; 16. Graphite particle suction tube; 17. Negative pressure tube; 18. Fixed clamp; 19. Moving clamp; 20. Driven clamp; 21. Active clamp; 22. Shaping frame a; 23. Grinding shaft; 24. Grinding motor; 25. Rotary grinding seat; 26. Ring cutter; 27. Grinding ring brush; 28. Negative pressure suction hole; 29. ​​Vacuum cleaner; 30. Circular sanding belt; 31. Air outlet duct; 32. Shaping frame b; 33. Air cooler; 34. Elastic pressure component; 35. Elastic pressure frame. Detailed Implementation

[0029] The present invention will be further described and illustrated below with reference to specific embodiments and the accompanying drawings:

[0030] Please see Figure 1-8 The present invention is an oil-free self-lubricating bearing graphite particle assembly equipment. The technical solution adopted is: it includes an assembly frame 1 and a bearing bushing 2, and a central control host 9 is fixedly installed on the end face of the assembly frame 1.

[0031] A three-axis moving platform is mounted on the back of the assembly frame 1, and the assembly base 3 moves along the surface of the three-axis moving platform in three axes.

[0032] The three-axis moving platform includes a lifting platform 10 and a longitudinal moving frame 11. A set of vertically arranged vertical push rods 12 are installed between the relative surfaces of the lifting platform 10 and the assembly frame 1. A set of horizontally arranged longitudinal push rods 13 are installed between the relative surfaces of the longitudinal moving frame 11 and the lifting platform 10. A lead screw drive module c14 is installed inside the longitudinal moving frame 11. The peripheral side of the lead screw drive module c14 is connected to the assembly base 3 for transmission.

[0033] The interior of the mounting base 3 is equipped with a visual recognition camera 4, a negative pressure suction module, and a ventilation module.

[0034] The visual recognition camera 4 is used to collect images of the mounting holes in the bearing bushing 2 in real time. The central control host 9 has a built-in image recognition module. The image recognition module is an image recognition algorithm. The port of the image recognition module is electrically connected to the visual recognition camera 4 in real time. Based on the image data collected by the visual recognition camera 4, the image recognition module identifies the edge and center position of the mounting holes in the bearing bushing 2. After the image recognition module identifies the above key data, it automatically establishes the movement parameters of the three-axis moving platform so that the negative pressure suction module and the air distribution module can be coaxially set with the mounting holes in the bearing bushing 2 when they are working.

[0035] Both the visual recognition module and the visual recognition camera 4 are common structures in the existing technology, and will not be described in detail here;

[0036] The negative pressure suction module includes a suction pump 15 fixed to the surface of the mounting base 3 and a graphite particle suction tube 16 fixed inside the mounting base 3 and arranged vertically. The port of the suction pump 15 is fixedly connected to the graphite particle suction tube 16 through a negative pressure tube 17. A pneumatic probe electrically connected to the central control host 9 is fixedly installed inside the negative pressure tube 17. The graphite particle suction tube 16 has a negative pressure suction channel with an opening at the bottom end that is connected to the negative pressure tube 17. A suction head is fixedly installed at the bottom end of the graphite particle suction tube 16. The outer diameter of the suction head is 0.8 times the outer diameter of the graphite particle itself.

[0037] When performing the gripping operation of graphite particles, the suction pump 15 is activated and generates negative pressure inside the negative pressure suction channel. The graphite particles are then sucked up by the negative pressure. During suction, the suction head and the graphite particles are coaxially arranged.

[0038] The air pressure probe is used to monitor the negative pressure in the negative pressure tube 17 in real time. The air pressure probe feeds back the monitored data to the central control host 9 in real time. The central control host 9 controls the suction pressure of the suction head on the graphite particles based on the data feedback from the air pressure probe.

[0039] The top surface of the assembly frame 1 is respectively fitted with a graphite grain encoder 5 and a glue box 6, and the top surface of the assembly frame 1 is fixedly provided with a slot that cooperates with the graphite grain encoder 5 and the glue box 6.

[0040] The surface of the graphite grain encoder 5 is evenly distributed with graphite grain grooves, and the inner wall of each graphite grain groove is clamped with a graphite grain body. The top surface of the glue box 6 is fixedly connected to the glue impregnation tube.

[0041] Inside the assembly frame 1 are screw drive module a7 and screw drive module b8 respectively, and on the surface of the assembly frame 1 are clamping modules driven by screw drive module a7 and used for clamping bearing bushing 2.

[0042] The clamping module includes a fixed clamping seat 18 fixed to the surface of the assembly frame 1 and a movable clamping seat 19 slidably connected to the inner wall of the assembly frame 1 and driven by a lead screw drive module a7. The inner wall of the movable clamping seat 19 is rotatably connected to a driven clamping ring 20, and the inner wall of the fixed clamping seat 18 is rotatably connected to an active clamping ring 21 driven by a rotary motor. The inner and outer diameters of the active clamping ring 21 and the driven clamping ring 20 are the same. The bearing bushing 2 is clamped between the active clamping ring 21 and the driven clamping ring 20. The outer diameter of the active clamping ring 21 is 0.85 times the outer diameter of the bearing bushing 2, and the inner diameter of the active clamping ring 21 is the same as the inner diameter of the bearing bushing 2.

[0043] The peripheral side of the lead screw drive module b8 is connected to a shaping mechanism that synchronously shapes the inner and outer walls of the bearing bushing 2.

[0044] The shaping mechanism includes a shaping frame a22 that is slidably connected to the assembly frame 1 and driven by a lead screw drive module b8. A grinding shaft 23 coaxially arranged with the bearing bushing 2 is rotatably connected to the inner wall of the shaping frame a22. A grinding motor 24 is installed on the side of the shaping frame a22. The output shaft end of the grinding motor 24 is connected to the grinding shaft 23 via a chain.

[0045] A grinding base 25 is fixedly installed at the end of the grinding shaft 23, and a ring cutter 26 is fixedly installed on the end face of the grinding base 25.

[0046] The outer diameter of the ring cutter 26 is 0.9 times the inner diameter of the bearing bushing 2, and the cutting edge shape of the ring cutter 26 is "V" shaped;

[0047] Two symmetrically arranged grinding ring brushes 27 are fixedly installed on the circumferential side of the grinding base 25. The grinding ring brushes 27 are steel wire soft brushes, and the outer diameter of the grinding ring brushes 27 is 1.15 times the inner diameter of the bearing bushing 2.

[0048] The inside of the rotary grinding base 25 is fixedly provided with a dust suction chamber. Inside the rotary grinding base 25, at the position corresponding to the two grinding ring brushes 27, there is a set of negative pressure suction holes 28 arranged in a circumferential array and communicating with the dust suction chamber. The axis of the grinding shaft 23 is fixedly installed with a dust suction channel communicating with the dust suction chamber. The back of the shaping frame a22 is fixedly installed with a vacuum cleaner 29. The port of the vacuum cleaner 29 is rotatably connected to the dust suction channel through a pipe. The surface of the shaping frame a22 is equipped with an external shaping component.

[0049] The external shaping components include an annular sanding belt 30 and a shaping frame b32 fixedly connected to the shaping frame a22. An elastic pressure frame 35 is provided below the shaping frame b32. Two symmetrically arranged elastic pressure members 34 are installed between the opposing surfaces of the shaping frame b32 and the elastic pressure frame 35. An active roller is rotatably connected to the inner wall of the shaping frame b32, and two driven rollers are rotatably connected to the inner wall of the elastic pressure frame 35. The peripheral surfaces of the active roller and the two driven rollers are all connected to the annular sanding belt 30. A geared motor is fixedly installed on the surface of the shaping frame b32, and the output shaft end of the geared motor is fixedly connected to the active roller.

[0050] The elastic pressure-applying component 34 includes a damping telescopic tube, and an anti-compression spring is sleeved on the peripheral side of the damping telescopic tube.

[0051] The air distribution module includes a cooler 33 fixed to the surface of the mounting base 3 and an air outlet duct 31 vertically arranged and fixed inside the mounting base 3. One end of the air outlet of the cooler 33 is fixedly connected to the air outlet duct 31 through a connecting pipe.

[0052] Screw drive modules a7, b8, and c14 all include drive motors, and a transmission screw is fixedly mounted on the output shaft end of the drive motor.

[0053] The working principle of this invention is as follows: This device is mainly applicable to the assembly operation of the graphite particle assembly hole on the bearing bushing 2 in the oilless self-lubricating bearing. Before the assembly operation, the bearing bushing 2 is clamped between the active clamping ring 21 and the driven clamping ring 20. The graphite particle stack 5, which is fully loaded with the graphite particle body, and the glue box 6, which is fully loaded with glue, are snapped into the assembly frame 1.

[0054] Before assembly, the shaping mechanism is kept far away from the bearing bushing 2. During assembly, the visual recognition camera 4 first identifies the outer edge and axis position of the assembly hole in the bearing bushing 2. After the visual recognition camera 4 identifies the above parameters, it automatically establishes the movement parameters of the three-axis moving platform. After the movement parameters of the three-axis moving platform are established, the graphite particle suction tube 16 sequentially picks up the graphite particle body from the graphite particle encoder 5 through negative pressure. After the graphite particle body is picked up, the graphite particle suction tube 16 immerses the graphite particle body into the glue tank 6, and then performs glue application on the outer ring surface of the graphite particle body. After the glue application is completed... The graphite particle suction tube 16 assembles the graphite particle body with glue into the assembly hole in the bearing bushing 2. After all the assembly holes on the bearing bushing 2 are assembled, the lead screw drive module b8 drives the shaping frame a22 to slowly move towards the bearing bushing 2. During the slow movement, the annular sanding belt 30, the ring cutter 26 and the rotary grinding seat 25 rotate at a set speed, and the vacuum cleaner 29 works synchronously. Then, the two ends of the assembled graphite particle body are simultaneously trimmed so that the top and bottom shapes of the graphite particle body are adapted to the inner and outer diameters of the bearing bushing 2.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. An oil-free self-lubricating bearing graphite particle assembly device, comprising an assembly frame (1) and a bearing bushing (2), characterized in that: The back of the assembly frame (1) is equipped with a three-axis moving platform. The surface of the three-axis moving platform is equipped with an assembly seat (3) that moves in three axes. The interior of the assembly seat (3) is equipped with a visual recognition camera (4), a negative pressure suction module and a wind distribution module. The top surface of the assembly frame (1) is respectively clamped with a graphite particle encoder (5) and a glue box (6). The interior of the assembly frame (1) is equipped with a screw drive module a (7) and a screw drive module b (8). The surface of the assembly frame (1) is equipped with a clamping module that is driven by the screw drive module a (7) and used for clamping the bearing bushing (2). The peripheral side of the screw drive module b (8) is connected to a shaping mechanism that synchronously shapes the inner and outer walls of the bearing bushing (2). The negative pressure suction module includes a suction pump (15) fixed on the surface of the mounting base (3) and a graphite particle suction tube (16) fixed inside the mounting base (3) and arranged vertically. The port of the suction pump (15) is fixedly connected to the graphite particle suction tube (16) through a negative pressure tube (17). A pneumatic probe electrically connected to the central control host (9) is fixedly installed inside the negative pressure tube (17). A negative pressure suction channel with a bottom opening and connected to the negative pressure tube (17) is opened inside the graphite particle suction tube (16). A suction head is fixedly installed at the bottom of the graphite particle suction tube (16). The outer diameter of the suction head is 0.6 to 0.9 times the outer diameter of the graphite particle body. The shaping mechanism includes a shaping frame a (22) that is slidably connected to the assembly frame (1) and driven by a lead screw drive module b (8). A grinding shaft (23) coaxially arranged with the bearing bushing (2) is rotatably connected to the inner wall of the shaping frame a (22). A grinding motor (24) is mounted on the side of the shaping frame a (22). The output shaft end of the grinding motor (24) is connected to the grinding shaft (23) via a chain. A rotary grinding seat (25) is fixedly mounted at the end of the grinding shaft (23). A ring cutter (26) is fixedly mounted on the end face of the rotary grinding seat (25). A ring cutter (26) is fixedly mounted on the circumferential side of the rotary grinding seat (25). Two symmetrically arranged grinding ring brushes (27) are fixedly installed. A dust suction chamber is fixedly opened inside the grinding seat (25). A set of negative pressure suction holes (28) arranged in a circular array and connected to the dust suction chamber are opened inside the grinding seat (25) and at the position corresponding to the two grinding ring brushes (27). A dust suction channel connected to the dust suction chamber is fixedly installed at the axis position of the grinding shaft (23). A vacuum cleaner (29) is fixedly installed on the back of the shaping frame a (22). The port of the vacuum cleaner (29) is rotatably connected to the dust suction channel through a pipe. An external shaping component is installed on the surface of the shaping frame a (22). The external shaping components include an annular sanding belt (30) and a shaping frame b (32) fixedly connected to the shaping frame a (22). An elastic pressure frame (35) is provided below the shaping frame b (32). Two symmetrically arranged elastic pressure members (34) are installed between the opposing surfaces of the shaping frame b (32) and the elastic pressure frame (35). An active roller is rotatably connected to the inner wall of the shaping frame b (32). Two driven rollers are rotatably connected to the inner wall of the elastic pressure frame (35). The peripheral surfaces of the active roller and the two driven rollers are all connected to the annular sanding belt (30) for transmission. A reduction motor is fixedly installed on the surface of the shaping frame b (32). The output shaft end of the reduction motor is fixedly connected to the active roller.

2. The oil-free self-lubricating bearing graphite particle assembly equipment according to claim 1, characterized in that: The surface of the graphite grain encoder (5) is evenly distributed with graphite grain grooves, and the inner wall of each graphite grain groove is fitted with a graphite grain body. The top surface of the glue box (6) is fixedly connected with an impregnation tube. The top surface of the assembly frame (1) is fixedly provided with a slot that cooperates with the graphite grain encoder (5) and the glue box (6). The end face of the assembly frame (1) is fixedly installed with a central control host (9).

3. The oil-free self-lubricating bearing graphite particle assembly equipment according to claim 2, characterized in that: The three-axis moving platform includes a lifting platform (10) and a longitudinal moving frame (11). A set of vertically arranged vertical push rods (12) are installed between the relative surfaces of the lifting platform (10) and the assembly frame (1). A set of horizontally arranged longitudinal push rods (13) are installed between the relative surfaces of the longitudinal moving frame (11) and the lifting platform (10). A lead screw drive module c (14) is installed inside the longitudinal moving frame (11). The peripheral side of the lead screw drive module c (14) is connected to the assembly seat (3) for transmission.

4. The oil-free self-lubricating bearing graphite particle assembly equipment according to claim 1, characterized in that: The clamping module includes a fixed clamping seat (18) fixed to the surface of the assembly frame (1) and a movable clamping seat (19) slidably connected to the inner wall of the assembly frame (1) and driven by a lead screw drive module a (7). The inner wall of the movable clamping seat (19) is rotatably connected to a driven clamping ring (20), and the inner wall of the fixed clamping seat (18) is rotatably connected to an active clamping ring (21) driven by a rotary motor. The inner and outer diameters of the active clamping ring (21) and the driven clamping ring (20) are the same. The bearing bushing (2) is clamped between the active clamping ring (21) and the driven clamping ring (20). The outer diameter of the active clamping ring (21) is 0.85 times the outer diameter of the bearing bushing (2), and the inner diameter of the active clamping ring (21) is the same as the inner diameter of the bearing bushing (2).

5. The oil-free self-lubricating bearing graphite particle assembly equipment according to claim 1, characterized in that: The outer diameter of the ring cutter (26) is 0.9 times the inner diameter of the bearing bush (2), the cutting edge of the ring cutter (26) is "V" shaped, the grinding ring brush (27) is a steel wire soft brush, and the outer diameter of the grinding ring brush (27) is 1.15 times the inner diameter of the bearing bush (2).

6. The oil-free self-lubricating bearing graphite particle assembly equipment according to claim 1, characterized in that: The air distribution module includes a cooler (33) fixed to the surface of the mounting base (3) and an air outlet pipe (31) vertically arranged and fixed inside the mounting base (3). One end of the air outlet of the cooler (33) is fixedly connected to the air outlet pipe (31) through a connecting pipe.

7. The oil-free self-lubricating bearing graphite particle assembly equipment according to claim 6, characterized in that: The lead screw drive module a (7), lead screw drive module b (8) and lead screw drive module c (14) all include a drive motor, and a transmission lead screw is fixedly installed on the output shaft end of the drive motor.

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