A processing equipment for a self-lubricating bearing structure

Abstract

This invention relates to the field of bearing structure milling technology. It provides a processing device for self-lubricating bearing structures, used to process bearing rings with multiple sets of lubrication grooves. The device includes two sets of synchronously lifting support rods and two sets of grooving mechanisms. Each grooving mechanism includes a milling cutter for grooving. The bottom of the second support rod is connected to a positioning cylinder for internal support of the bearing ring. One grooving mechanism is located at the bottom of the first support rod and moves with it, performing inner wall milling grooving on a bearing ring positioned by a positioning clamp. The other grooving mechanism performs outer wall milling grooving on another bearing ring supported by the positioning cylinder. In this invention, inner and outer wall grooving are performed synchronously on adjacent bearing rings, increasing throughput per unit time compared to sequential processing. Precision is enhanced; the external clamping and internal support form a bidirectional rigid constraint, suppressing processing vibration and ensuring the positional accuracy of the lubrication grooves.

Description

Technical Field

[0001] This invention relates to the field of milling technology, and more specifically to a processing equipment for a self-lubricating bearing structure. Background Technology

[0002] With the rapid development of modern industry, the speed requirements for bearings are becoming increasingly stringent, especially for large bearings. The rolling elements and cage assembly of large bearings are very heavy. Under high-speed rotation, the cage experiences severe wear, even producing copper or iron filings. These filings cause significant wear to the entire bearing assembly, leading to premature failure and reduced bearing life. The materials used for the solid cages of large bearings are primarily brass and steel structures, and they come in three forms: inner diameter guided, outer diameter guided, and rolling element guided. However, the guide surfaces contact other bearing components with very small clearances, making adequate lubrication difficult under high-speed rotation. This results in iron filings and rapid failure.

[0003] Existing technology provides a milling apparatus for bearing rings with flanges, application number CN201911076702.7. It includes a worktable, a support table for holding the bearing rings, a positioning component for stabilizing at least two vertically stacked bearing rings on the support table, and a forming tool capable of simultaneously machining flanges onto two adjacent bearing rings on the support table. The support table, the positioning component, and the forming tool are all mounted on the worktable. This milling apparatus for bearing rings with flanges, through the cooperation of the support table, the positioning component, and the forming tool, can simultaneously mill flanges onto vertically stacked bearing rings, avoiding processing them one by one and greatly improving processing efficiency.

[0004] However, the existing technology, especially this solution, still has the following problems: the milling device has a single processing type and cannot handle internal and external milling operations simultaneously. In addition, the existing processing equipment for bearing ring milling operations is limited in continuous production, and there is a bottleneck in efficiency improvement. Therefore, we need to provide a processing equipment for a self-lubricating bearing structure. Summary of the Invention

[0005] The purpose of this invention is to provide a technical solution to address the problems in the prior art mentioned in the background section.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A machining equipment for a self-lubricating bearing structure is used to machine bearing rings, the bearing rings having multiple sets of lubrication grooves, including:

[0008] The system includes a conveyor belt and two sets of positioning cylinders. Each set of positioning cylinders is equipped with two sets of positioning clamping wheels. The two sets of positioning cylinders position the bearing rings on the conveyor belt through the positioning clamping wheels. The positioning clamping wheels fit against the outer wall of the bearing rings and support the bearing rings from the outside.

[0009] The system includes a support rod 1 and two sets of grooving mechanisms. The grooving mechanisms include milling cutters for grooving operations. One side of the support rod 1 is also connected to a support rod 2 that moves synchronously. The bottom of the support rod 2 is connected to a positioning cylinder for internal support of the bearing ring. One set of grooving mechanisms is located at the bottom of the support rod 1 and moves up and down with the support rod 1 to perform internal milling and grooving operations on the bearing ring positioned by the positioning clamping wheel. The other set of grooving mechanisms performs external milling and grooving operations on the other bearing ring supported by the positioning cylinder.

[0010] Preferably, the processing equipment performs grooving operations on the inner and outer walls of the bearing ring simultaneously, and the bearing ring is located at different positions on the conveyor belt during the grooving operations.

[0011] Preferably, a pressing component is installed at the bottom of the second support rod, and a positioning cylinder is connected to the bottom of the pressing component. When the positioning cylinder provides internal support to the bearing ring, the pressing component presses down on the bearing ring.

[0012] Priority includes a drive structure for driving the lifting and lowering of support rod one, and a connecting bracket for connecting support rod two is also installed on support rod one, thereby realizing the synchronous lifting and lowering operation of the grooving mechanism and the positioning cylinder.

[0013] Priority is also given to the base, on which two sets of positioning cylinders are mounted symmetrically with respect to the conveyor belt. The two sets of positioning cylinders are located on both sides above the conveyor belt, thereby clamping the bearing ring from both sides through positioning clamping wheels.

[0014] Preferably, the end of the positioning cylinder is provided with a mounting block for mounting positioning clamping wheels, two sets of positioning clamping wheels are mounted on the mounting block, and a clearance groove for accommodating the bearing ring is provided on the mounting block.

[0015] Preferred, the milling cutter includes milling cutter one and milling cutter two. Driver one and driver two are also installed at the bottom of the connecting bracket. Driver one is used to drive the axial feed of milling cutter one, and driver two is used to drive the milling cutter to rotate in the horizontal direction. At the same time, the bottom of the support rod one is also provided with a lifting drive. These driving methods together realize the grooving operation of the milling cutter. Multiple sets of milling cutters two feed to perform milling and grooving operations on the outside of the bearing ring when the conveyor belt is stopped.

[0016] Preferably, the bottom of the support rod is equipped with an adjustment seat for mounting the milling cutter. The adjustment seat is provided with a mounting bearing, which is a linear bearing. With the mounting bearing in place, the milling cutter can move axially.

[0017] Preferably, the conveyor belt is configured as a step-driven belt conveyor, and the conveyor belt is provided with positioning components for defining the bearing ring. When the bearing ring is placed on the conveyor belt, the positioning components fix the position of the bearing ring to prevent the bearing ring from shifting or falling off the conveyor belt during the conveying process.

[0018] Preferably, the positioning cylinder and the inner wall of the bearing ring are configured with a transition fit, which provides internal support for the bearing ring while allowing the positioning cylinder to rise smoothly and detach from the bearing ring without affecting the subsequent conveying movement of the bearing ring on the conveyor belt.

[0019] Technical effects and advantages of the present invention: The processing equipment for a self-lubricating bearing structure proposed in this invention has the following advantages compared with the prior art:

[0020] In this invention, the inner and outer wall grooving is performed simultaneously on adjacent bearing rings, increasing throughput per unit time compared to sequential machining. Precision is enhanced; external clamping and internal support form a bidirectional rigid constraint, suppressing machining vibration and ensuring the accuracy of the lubrication groove position. The structure is simple and efficient; support rod one and support rod two are mechanically linked, requiring only a single drive source to control both sets of machining actions, reducing equipment complexity and cost. The two sets of positioning clamping wheels feature four-point clamping, improving the stability of external support; the internal support function of the positioning cylinder naturally resists milling radial forces, preventing workpiece deformation; simultaneous operation of the dual stations directly reduces the single-piece machining cycle, improving efficiency. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the bearing ring processed according to the present invention;

[0022] Figure 2 This is a schematic diagram of the cross-sectional structure of the bearing ring processed according to the present invention;

[0023] Figure 3 This is a three-dimensional structural diagram of the processing equipment for the self-lubricating bearing structure of the present invention;

[0024] Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A;

[0025] Figure 5 This is a schematic diagram of the two sets of support rods and positioning cylinders in an embodiment of the present invention;

[0026] Figure 6This is a front structural diagram of the processing equipment for the self-lubricating bearing structure of the present invention;

[0027] Figure 7 This is a top view schematic diagram of the processing equipment for the self-lubricating bearing structure of the present invention;

[0028] Figure 8 For the present invention Figure 7 Enlarged structural diagram at point B;

[0029] In the picture:

[0030] 11. Bearing ring; 12. Lubrication gap; 13. Lubrication groove; 21. Base; 22. Positioning cylinder; 23. Mounting block; 24. Positioning clamping wheel; 25. Leaving groove; 26. Conveyor belt; 31. Connecting bracket; 32. Support rod one; 33. Support rod two; 34. Positioning cylinder; 35. Adjusting seat; 36. Milling cutter one; 37. Mounting bearing; 38. Mounting seat; 39. Driver one; 310. Driver two; 311. Pressing part; 312. Milling cutter two. Detailed Implementation

[0031] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and implement the subject matter described herein, and changes may be made to the function and arrangement of the elements discussed without departing from the scope of this specification. Various processes or components may be omitted, substituted, or added as needed in the examples. Furthermore, features described in some examples may be combined in other examples.

[0032] The invention provides, for example Figures 1 to 8 As shown, a processing device for a self-lubricating bearing structure is used to process a bearing ring 11. Circular lubrication gaps 12 are provided on both the inner and outer walls of the bearing ring 11. Multiple sets of lubrication grooves 13 are formed along the lubrication gaps 12 on both the outer and inner walls. The lubrication grooves 13 on the outer and inner walls are aligned, and a through hole is formed between the lubrication grooves 13 on the outer and inner walls. Lubricant for lubricating the inner and outer walls of the bearing ring 11 can enter the interior of the bearing ring 11 through the through hole. The lubricant is distributed on the inner and outer walls of the bearing ring 11 to lubricate the bearing balls.

[0033] like Figure 1 and Figure 2 As shown, the lubrication gap 12 and lubrication groove 13 allow the lubricant to remain in the inner and outer walls of the bearing ring 11 for a longer period of time. Specifically, the lubricant is either lubricating powder or lubricating oil.

[0034] The processing equipment includes a conveyor belt 26 and two sets of positioning cylinders 22. Each of the two sets of positioning cylinders 22 is equipped with two sets of positioning clamping wheels 24. The two sets of positioning cylinders 22 position the bearing ring 11 on the conveyor belt 26 through the positioning clamping wheels 24. The positioning clamping wheels 24 fit against the outer wall of the bearing ring 11 and support the bearing ring 11 from the outside.

[0035] The system includes a support rod 32 and two sets of grooving mechanisms. Each grooving mechanism includes a milling cutter for grooving operations. A support rod 33 that moves synchronously is connected to one side of the support rod 32. A positioning cylinder 34 for internal support of the bearing ring 11 is connected to the bottom of the support rod 33. One set of grooving mechanisms is located at the bottom of the support rod 32 and moves up and down with the support rod 32. It performs internal milling and grooving operations on the bearing ring 11 positioned by the positioning clamping wheel 24. The other set of grooving mechanisms performs external milling and grooving operations on the other bearing ring 11 supported by the positioning cylinder 34.

[0036] Working Principle: The system employs parallel dual-station machining. Station 1 performs inner wall machining: Positioning cylinder 22 drives positioning clamping rollers 24 to clamp the outer wall of bearing ring 11, providing external support. Simultaneously, the milling cutter at the bottom of support rod 32 descends to mill grooves into the inner wall of bearing ring 11. Station 2 performs outer wall machining: Support rod 33 drives positioning cylinder 34 to insert into the inner hole of another bearing ring 11, providing internal support. Another set of milling cutters simultaneously mills grooves into its outer wall. Synchronization: Support rod 32 and support rod 33 move in tandem, achieving strict synchronization of machining actions between the two stations. Cooperative positioning mechanism: External positioning: Positioning clamping rollers 24 clamp bearing ring 11 from both sides, limiting radial displacement. Internal positioning: Positioning cylinder 34 inserts into the inner hole of bearing ring 11, resisting milling radial force and forming complementary constraints with the external clamping.

[0037] The grooving of the inner and outer walls is performed simultaneously on adjacent bearing rings 11, increasing the throughput per unit time compared to sequential machining. Precision is enhanced; external clamping and internal support form a bidirectional rigid constraint, suppressing machining vibration and ensuring the positional accuracy of the lubrication groove 13. The structure is simple and efficient; support rod 1 32 and support rod 2 33 are mechanically linked, requiring only a single drive source to control both sets of machining actions, reducing equipment complexity and cost. The two sets of positioning clamping wheels 24 feature four-point clamping, improving the stability of external support; the internal support function of the positioning cylinder 34 naturally resists milling radial forces, preventing workpiece deformation; the dual-station synchronous operation directly reduces the single-piece machining cycle, improving efficiency.

[0038] Specifically, the conveyor belt 26 is configured as an intermittent belt conveyor, and the positioning cylinder 22 clamps and positions the bearing ring 11 when the conveyor belt 26 is stopped. Here, the positioning cylinder 22 and the positioning clamping wheel 24 have a positioning function for clamping the bearing ring 11.

[0039] The processing equipment performs grooving operations on the inner and outer walls of the bearing ring 11 simultaneously. That is, when the processing equipment performs grooving operations on the inner and outer walls of the bearing ring 11, the bearing ring 11 is located at different positions on the conveyor belt 26. It can choose to perform grooving on the inner wall of the bearing ring 11 first, or it can choose to perform grooving on the outer wall of the bearing ring 11 first. The grooving operations on the inner and outer walls of the same bearing ring 11 are performed at different positions on the conveyor belt 26.

[0040] However, in order to ensure production and processing efficiency, when one bearing ring 11 is grooving its inner wall, the other bearing ring 11 is grooving its outer wall. Due to the synchronicity of the descent support of the positioning cylinder 34, the clamping of the positioning clamping wheel 24, and the grooving operation of the grooving mechanism, both bearing rings 11 achieve good positioning and clamping effects during the grooving process of the inner and outer walls.

[0041] like Figure 5 As shown, a pressing member 311 is installed at the bottom of the second support rod 33, and a positioning cylinder 34 is connected to the bottom of the pressing member 311. When the positioning cylinder 34 provides internal support for the bearing ring 11, the pressing member 311 presses down on the bearing ring 11 to achieve a better positioning effect. Furthermore, the positioning cylinder 34 and the inner wall of the bearing ring 11 are configured with a transition fit, so that while providing internal support for the bearing ring 11, the positioning cylinder 34 can also rise smoothly and detach from the bearing ring 11 without affecting the subsequent conveying movement of the bearing ring 11 on the conveyor belt 26.

[0042] like Figure 5 As shown, the pressing member 311 is configured as a cross structure. When the pressing member 311 presses against the top surface of the bearing ring 11, it is the limit position for the positioning cylinder 34 to descend. In addition to providing downward pressure on the bearing ring 11, the pressing member 311 also serves as a position limiting structure for the descent of the positioning cylinder 34.

[0043] The processing equipment includes a drive structure for driving the support rod 32 to move up and down. The support rod 32 is also equipped with a connecting bracket 31 for connecting the support rod 33, thereby realizing the synchronous lifting and lowering operation of the grooving mechanism and the positioning cylinder 34.

[0044] like Figure 3 As shown, the processing equipment also includes a base 21, and two sets of positioning cylinders 22 are symmetrically arranged on the base 21 with respect to the conveyor belt 26. The two sets of positioning cylinders 22 are located on both sides above the conveyor belt 26, thereby clamping the bearing ring 11 from both sides via positioning clamping wheels 24. Specifically, the ends of the positioning cylinders 22 are provided with mounting blocks 23 for mounting the positioning clamping wheels 24. Figure 7 As shown, two sets of positioning clamping wheels 24 are installed on the mounting block 23, and the mounting block 23 is provided with a relief groove 25 for accommodating the bearing ring 11.

[0045] Specifically, the milling cutter includes a first milling cutter 36 and a second milling cutter 312. A first driver 39 and a second driver 310 are also installed at the bottom of the connecting bracket 31. The first driver 39 drives the axial feed of the first milling cutter 36, and the second driver 310 drives the milling cutter to rotate in the horizontal plane. Simultaneously, a lifting drive is provided at the bottom of the support rod 32. These driving methods together achieve the grooving operation of the milling cutter. Another grooving mechanism includes multiple sets of second milling cutters 312. These multiple sets of second milling cutters 312 feed to perform milling and grooving operations on the outside of the bearing ring 11 when the conveyor belt 26 is stopped.

[0046] Furthermore, such as Figure 4 and Figure 5 As shown, an adjusting seat 35 for mounting a milling cutter 36 is installed at the bottom of the support rod 32. The adjusting seat 35 is equipped with a mounting bearing 37, which is a linear bearing. With the mounting bearing 37 in place, the milling cutter can precisely perform axial feed movement. Furthermore, the adjusting seat 35 is mounted on the bottom of the support rod 32 via a mounting base 38, and the adjusting seat 35 is rotatably adjustable on the mounting base 38.

[0047] The conveyor belt 26 is configured as a step-driven belt conveyor. The conveyor belt is equipped with positioning components for limiting the bearing ring 11. When the bearing ring 11 is placed on the conveyor belt, the positioning components fix the position of the bearing ring 11 to prevent the bearing ring 11 from shifting or falling off the conveyor belt 26 during the conveying process, thereby affecting subsequent processing steps.

[0048] Specifically, such as Figure 7 and Figure 8 As shown, milling cutter 36 and milling cutter 312 have two sets of lubrication grooves 13 on the inner and outer walls of the bearing ring 11. Furthermore, the positioning element on the conveyor belt 26 can rotate the bearing ring 11 to allow the milling cutter 36 and milling cutter 312 to open multiple sets of lubrication grooves 13 on the inner and outer walls of the bearing ring 11. After the first grooving of the inner and outer walls is completed, the bearing ring 11 can be rotated 90 degrees by the positioning element and then intermittently conveyed again by the conveyor belt 26 to perform the second grooving of the inner and outer walls.

[0049] In summary, the present invention has the following combined effects:

[0050] The parallel machining mechanism utilizes the intermittent step-by-step conveyor belt 26 to position adjacent bearing rings 11 at the inner wall machining station and the outer wall machining station, respectively. Station 1: The positioning cylinder 22 drives the positioning clamping wheel 24 to clamp the outer wall of the bearing ring 11 for external support, while the milling cutter 36 of the inner wall grooving mechanism creates lubrication grooves 13 on the inner wall. Station 2: The positioning cylinder 34 is inserted into the inner hole of the bearing ring 11 for internal support, and the pressing member 311 presses its top, while the milling cutter 312 of the outer wall grooving mechanism creates lubrication grooves 13 on the outer wall. Synchronous positioning and machining are achieved. Positioning synchronization: The clamping action of the positioning clamping wheel 24, the descent support of the positioning cylinder 34, and the feed action of the grooving mechanism are executed synchronously. The pressing member 311 presses the top of the bearing ring 11 when the positioning cylinder 34 descends to its limit position, enhancing stability. Grooving synchronization: Inner wall milling and outer wall milling are performed simultaneously, achieving parallel machining of adjacent bearing rings 11. Multiple sets of grooves are machined in stages, with only one set of lubrication grooves 13 machined at a time. After the first machining, the positioning component of the conveyor belt 26 rotates the bearing ring 11 by 90 degrees. Through multiple cycles, multiple sets of lubrication grooves 13 on the inner and outer walls can be opened. Precise motion control is achieved in the inner wall grooving mechanism: the milling cutter 36 achieves precise axial feed through a linear bearing. Horizontal rotation is controlled by the driver 310, and the support rod 32 provides lifting drive. In the outer wall grooving mechanism, multiple sets of milling cutters 312 feed synchronously to ensure efficient outer wall grooving.

[0051] The processing efficiency is significantly improved. Inner and outer wall grooving is performed simultaneously at adjacent workstations, avoiding the waiting time of traditional serial processing and doubling the output per unit time. The stepper drive of the conveyor belt 26 is strictly matched with the processing program, enabling continuous production. Positioning accuracy and stability are optimized with a dual positioning design: externally, it is clamped at multiple points by positioning rollers 24, and internally, it is supported by a transitional fit of positioning cylinder 34, forming rigid constraints both internally and externally. The cross structure of the lower pressure component 311 provides vertical pressure, suppressing processing vibration. Clamping errors are reduced: the transitional fit between the positioning cylinder 34 and the bearing ring 11 ensures support stability while facilitating disengagement, preventing scratches on the workpiece. Consistent processing quality is guaranteed. Linear bearings ensure the axial feed accuracy of the milling tool, avoiding depth deviations in the lubrication groove 13. The bearing ring 11 rotates precisely through the positioning component, achieving a uniform distribution of multiple lubrication grooves 13, ensuring consistent lubricant flow. The equipment offers compatibility and flexibility, allowing for the free selection of processing the inner or outer wall first, adapting to different process requirements. The adjustable seat 35 is rotatable, facilitating fine-tuning of the tool angle to accommodate bearing rings 11 of different sizes. The highly automated production line features a 26-slotted conveyor belt that automatically fixes and rotates workpieces, reducing manual intervention. Positioning, supporting, and grooving actions are executed automatically and synchronously, lowering operational complexity. Through an innovative parallel processing architecture and collaborative positioning system, this equipment maximizes production efficiency while ensuring processing accuracy, making it particularly suitable for the mass production of self-lubricating bearing rings (11) requiring multiple repetitive processing steps.

[0052] The embodiments of the present invention have been described above, but the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention, all of which are within the protection scope of the present invention.

Claims

1. A processing equipment for a self-lubricating bearing structure, characterized in that, For machining bearing rings (11), the bearing rings (11) have multiple sets of lubrication grooves (13), including: The conveyor belt (26) and two sets of positioning cylinders (22) are provided. Two sets of positioning clamping wheels (24) are installed at the ends of the two sets of positioning cylinders (22). The two sets of positioning cylinders (22) position the bearing ring (11) on the conveyor belt (26) through the positioning clamping wheels (24). The positioning clamping wheels (24) fit against the outer wall of the bearing ring (11) and support the bearing ring (11) from the outside. The support rod (32) and two sets of grooving mechanisms include milling cutters for grooving operations. One side of the support rod (32) is also connected to a support rod (33) that moves synchronously. The bottom of the support rod (33) is connected to a positioning cylinder (34) for internal support of the bearing ring (11). One set of grooving mechanisms is set at the bottom of the support rod (32) and moves up and down with the support rod (32) to perform inner wall milling and grooving operations on a bearing ring (11) positioned by the positioning clamping wheel (24). The other set of grooving mechanisms performs outer wall milling and grooving operations on another bearing ring (11) supported by the positioning cylinder (34). The processing equipment performs grooving operations on the inner and outer walls of the bearing ring (11) simultaneously. During the grooving operations, the bearing ring (11) is located at different positions on the conveyor belt (26).

2. The processing equipment for a self-lubricating bearing structure according to claim 1, characterized in that, The bottom of the second support rod (33) is equipped with a pressing member (311), and the positioning cylinder (34) is connected to the bottom of the pressing member (311). When the positioning cylinder (34) provides internal support to the bearing ring (11), the pressing member (311) presses down on the bearing ring (11).

3. The processing equipment for a self-lubricating bearing structure according to claim 2, characterized in that, It includes a drive structure for driving the support rod one (32) to move up and down, and a connecting bracket (31) for connecting the support rod two (33) is also installed on the support rod one (32), so as to realize the synchronous lifting operation of the slotting mechanism and the positioning cylinder (34).

4. The processing equipment for a self-lubricating bearing structure according to claim 3, characterized in that, It also includes a base (21), and two sets of positioning cylinders (22) are installed on the base (21) symmetrically arranged with respect to the conveyor belt (26). The two sets of positioning cylinders (22) are located on both sides above the conveyor belt (26), so that the bearing ring (11) is clamped from both sides of the bearing ring (11) by positioning clamping wheels (24).

5. The processing equipment for a self-lubricating bearing structure according to claim 1, characterized in that, The end of the positioning cylinder (22) is provided with a mounting block (23) for mounting positioning clamping wheels (24). Two sets of positioning clamping wheels (24) are mounted on the mounting block (23). The mounting block (23) is provided with a relief groove (25) for accommodating the bearing ring (11).

6. The processing equipment for a self-lubricating bearing structure according to claim 1, characterized in that, The milling cutter includes milling cutter one (36) and milling cutter two (312). Driver one (39) and driver two (310) are also installed at the bottom of the connecting bracket (31). Driver one (39) is used to drive the axial feed of milling cutter one (36), and driver two (310) is used to drive the milling cutter to rotate in the horizontal direction. At the same time, the bottom of the support rod one (32) is also provided with a lifting drive. These driving methods together realize the grooving operation of the milling cutter. Multiple sets of milling cutter two (312) feed to the outside of the bearing ring (11) to perform milling and grooving operations when the conveyor belt (26) is stopped.

7. The processing equipment for a self-lubricating bearing structure according to claim 6, characterized in that, The bottom of the support rod (32) is equipped with an adjustment seat (35) for mounting the milling cutter (36). The adjustment seat (35) is provided with a mounting bearing (37), which is a linear bearing. With the mounting bearing (37) in place, the milling cutter can move axially.

8. The processing equipment for a self-lubricating bearing structure according to claim 7, characterized in that, The conveyor belt (26) is configured as a step-driven belt conveyor. The conveyor belt is provided with a positioning element for limiting the bearing ring (11). When the bearing ring (11) is placed on the conveyor belt, the positioning element fixes the position of the bearing ring (11) to prevent the bearing ring (11) from shifting or falling off the conveyor belt (26) during the conveying process.

9. The processing equipment for a self-lubricating bearing structure according to claim 8, characterized in that, The positioning cylinder (34) and the inner wall of the bearing ring (11) are configured to transition fit. While providing internal support for the bearing ring (11), the positioning cylinder (34) can also rise smoothly and detach from the bearing ring (11) without affecting the subsequent conveying movement of the bearing ring (11) on the conveyor belt (26).

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