A spherical roller bearing cage trimming tool

Abstract

This invention relates to the field of bearing cage dressing technology, and discloses a self-aligning roller bearing cage dressing fixture, including a dust collection bin. A support ring is supported at the top of the dust collection bin, and a support mechanism is supported on the inner side of the support ring. The support mechanism includes a support disc fastened to the inner side of the support ring. Several sets of clamping mechanisms are evenly arranged on the top of the support disc, and each clamping mechanism includes an elastic clamping plate. This self-aligning roller bearing cage dressing fixture supports the cage body through the support ring, and then uses two sets of grinding components symmetrically arranged diagonally to dress and grind the openings at both ends of the cage body. Furthermore, the inverted design of the two grinding heads allows for adaptation to the openings at both ends of the cage body, enabling simultaneous dressing and grinding of the openings at both ends of the cage body, thereby improving work efficiency and avoiding the need for subsequent flipping.

Description

Technical Field

[0001] This invention relates to the field of bearing cage dressing technology, and more specifically, to a dressing fixture for self-aligning roller bearing cages. Background Technology

[0002] The cage of a self-aligning roller bearing is a component that evenly spaces the self-aligning rollers. It plays a vital role in bearing operation, mainly to keep the rollers in the correct position, prevent them from colliding with each other, distribute the load evenly on the rollers, and help lubricate the rollers and raceways.

[0003] The cage's structural feature is a staggered, symmetrical window design, such as... Figure 4 As shown in the distribution of N2 and N3, the openings at the upper and lower ends of the cage are staggered, and N1 and N2, which are diagonally distributed through the center point, are located at the upper and lower ends of the cage respectively, forming a diagonal symmetrical state.

[0004] When finishing and polishing the openings of this type of cage, the existing finishing method is usually to finish and polish one side at a time. This method is inefficient and requires a second flip after finishing and polishing one side, which further reduces work efficiency. Therefore, it is necessary to optimize the existing finishing structure. Summary of the Invention

[0005] To overcome the above-mentioned technical problems, the present invention proposes a self-aligning roller bearing cage dressing tool.

[0006] The present invention achieves the above objectives through the following technical solutions:

[0007] A self-aligning roller bearing cage dressing fixture includes a dust collection bin, the top of which is supported by a support ring, and the inner side of the support ring is supported by a support mechanism, the support mechanism including a support disc that is fastened to the inner side of the support ring.

[0008] The top of the support disc is evenly provided with several sets of clamping mechanisms, each clamping mechanism including an elastic clamping plate. The bottom of the support disc is symmetrically and slidably provided with trimming mechanisms, each trimming mechanism including a grinding head.

[0009] A retainer body is provided at the top edge of the support ring. The elastic clamping plate provides compression support to the inner side of the retainer body. Several sets of openings are evenly provided at both ends of the retainer body. The grinding head is used to trim and grind the openings.

[0010] As a further optimization of the present invention, a first drive motor is provided in the middle of the bottom of the dust collection bin, a first transmission shaft is provided at the output end of the first drive motor, the top of the first transmission shaft extends into the interior of the dust collection bin and is provided with a first gear, a blade assembly is provided in the middle of the outer side of the first transmission shaft, the blade assembly rotates with the first transmission shaft to drive the airflow to flow from top to bottom, and a dust outlet port is provided on the outer side of the dust collection bin.

[0011] As a further optimization of the present invention, the support mechanism further includes a plurality of first support frames evenly arranged at the bottom of the support disc, the other end of each of the first support frames being fastened to the inner side of the support ring, and the inner side of each of the plurality of first support frames supporting a second support frame, the inner side of the second support frames jointly supporting the support ring.

[0012] As a further optimization of the present invention, the top bearing of the supporting ring supports a central shaft, a cam is provided on the top of the outer side of the central shaft, and a first hinge rod is hinged to both ends of the bottom of the cam. A fourth gear is provided in the middle of the outer side of the central shaft. An installation chamber is provided at the edge of the bottom of the supporting ring. The bottom end of the central shaft extends through the supporting ring into the interior of the installation chamber. Several sets of second springs are evenly arranged on the inner wall of the installation chamber and are fastened to the outer side of the central shaft.

[0013] As a further optimization of the present invention, a second drive shaft is provided on the outer side of the installation chamber, extending to the top of the second support frame. An incomplete gear that intermittently meshes with a fourth gear is provided on the top of the second drive shaft, and a third gear is provided on the bottom of the second drive shaft. The top of the first drive shaft is connected to the bottom bearing of the installation chamber, and the third gear meshes with the first gear.

[0014] As a further optimization of the present invention, the trimming mechanism further includes a first telescopic sleeve disposed at the bottom of the support disc. The first telescopic sleeve is slidably connected to the bottom of the support disc. A first telescopic rod is sleeved on the end of the first telescopic sleeve away from the center of the support disc. A support frame is disposed on the end of the first telescopic rod away from the center of the support disc. A grinding component is disposed on the end of the support frame away from the first telescopic rod.

[0015] As a further optimization of the present invention, the grinding assembly includes a second drive motor and a grinding head. The support frame has a "Z" shaped structure. The output end of the second drive motor passes through the support frame and is provided with a grinding head. The position and direction of the second drive motor and the grinding head located at one end of the two sets of support frames correspond to the opening position of the main body of the retainer. The support frame and the bottom of the first telescopic rod are provided with a first spring at their respective ends that are close to each other.

[0016] As a further optimization of the present invention, a second telescopic sleeve is provided through both sides of the first telescopic rod near the center of the support disc. A second telescopic rod is respectively sleeved at both ends of the second telescopic sleeve. A first synchronous connecting rod is provided at the top of each of the second telescopic rods. A limiting connecting rod is provided at the bottom of the first telescopic rod inside the first telescopic sleeve, extending to the bottom of the first telescopic sleeve. A first displacement through hole adapted to the limiting connecting rod is provided at the bottom of the first telescopic sleeve. The other end of the first hinged rod is hinged to the bottom end of the limiting connecting rod.

[0017] As a further optimization of the present invention, the top of the supporting disk is uniformly provided with a plurality of limiting support grooves, and the clamping mechanism further includes a positioning support rod that slides within the limiting support groove. A second synchronous connecting rod is provided at the top of the end of the positioning support rod near the center of the supporting disk, and an elastic clamp is provided at the end of the positioning support rod away from the center of the supporting disk. The two ends of the inner side of the elastic clamp are respectively hinged to a second hinge rod. An installation groove is provided inside the positioning support rod, and a hinge seat is provided at one end of the installation groove. The other end of the second hinge rod is respectively hinged to the hinge seat. A third spring is provided between one end of the hinge seat and the inner wall of the installation groove.

[0018] As a further optimization of the present invention, the top of the supporting disk supports a rotating disk, a support column is provided at the center of the bottom of the rotating disk, a positioning hole adapted to the support column is provided at the center of the top of the supporting disk, a plurality of arc-shaped guide holes adapted to the second synchronous connecting rod are evenly provided on the top of the rotating disk, a third drive motor is provided on the outside of the supporting disk, a second gear is provided on the top of the third drive motor, an arc-shaped rack meshing with the second gear is provided on the outside of the rotating disk, a second displacement through hole is provided at the bottom of the limiting support groove, and the top of the first synchronous connecting rod passes through the second displacement through hole and is fastened to the bottom of the positioning support rod.

[0019] The beneficial effects of this invention are as follows: This invention supports the main body of the cage through a support ring, and then, through two sets of grinding components arranged diagonally symmetrically, respectively, the openings at both ends of the cage main body are trimmed and ground. Furthermore, through the inverted design of the two sets of grinding heads, the openings at both ends of the cage main body can be adapted, and the trimming and grinding work of the openings at both ends of the cage main body can be completed simultaneously, thereby improving work efficiency and avoiding the need for subsequent flipping. Moreover, through the reciprocating rotation structure with cams, the two sets of grinding components are driven to move back and forth, thereby realizing the automatic change of the grinding area and improving the grinding effect. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of the combined structure of the present invention;

[0021] Figure 2 This is a three-dimensional top view of the combined structure of the present invention;

[0022] Figure 3 This is a three-dimensional schematic diagram of the independent structure of the present invention;

[0023] Figure 4 This is an enlarged schematic diagram of the structure of the main body of the cage in this invention;

[0024] Figure 5 This is an independent structural perspective sectional view of the present invention;

[0025] Figure 6 This is a three-dimensional exploded view of the independent structure of the present invention;

[0026] Figure 7 This is an enlarged schematic diagram of the structure at the rotating disk in this invention;

[0027] Figure 8 This is an enlarged schematic diagram of the top connection structure at the support disk of the present invention;

[0028] Figure 9 This is an enlarged schematic diagram of the structure at the supporting disk of the present invention;

[0029] Figure 10 This is an enlarged schematic diagram of the connection structure at the clamping mechanism in this invention;

[0030] Figure 11 This is an enlarged schematic diagram of the connection structure between the clamping mechanism and the trimming mechanism in this invention;

[0031] Figure 12 This is an enlarged schematic diagram of the connection structure between the trimming mechanism and the cam in this invention;

[0032] Figure 13 This is an enlarged sectional view of the bottom connection structure of the cam in this invention;

[0033] Figure 14 This is an enlarged cross-sectional view of the connection structure at the clamping mechanism in this invention;

[0034] Figure 15 This is an enlarged cross-sectional view of the structure at the first telescopic sleeve in this invention.

[0035] In the diagram: 10. Dust collection bin; 11. Support ring; 12. Dust outlet port; 13. Main body of the cage; 14. First drive motor; 15. Blade assembly; 16. First gear; 17. First transmission shaft;

[0036] 100. Trimming mechanism; 200. Support mechanism; 300. Clamping mechanism;

[0037] 101. First telescopic sleeve; 102. Second telescopic sleeve; 103. Support frame; 104. Second drive motor; 105. Grinding head; 106. First spring; 107. First telescopic rod; 108. Second telescopic rod; 109. First synchronous connecting rod; 110. First displacement through hole; 111. Limiting connecting rod;

[0038] 201. Rotating disk; 202. Supporting disk; 203. First support frame; 204. Arc-shaped rack; 205. Arc-shaped guide hole; 206. Support column; 207. Positioning hole; 208. Limiting support groove; 209. Second gear; 210. Third drive motor; 211. Second displacement through hole; 212. Mounting chamber; 213. First hinge rod; 214. Second support frame; 215. Cam; 216. Central shaft; 217. Incomplete gear; 218. Second transmission shaft; 219. Third gear; 220. Second spring; 221. Fourth gear; 222. Support ring;

[0039] 301. Positioning support rod; 302. Second synchronous connecting rod; 303. Hinge seat; 304. Third spring; 305. Mounting slot; 306. Second hinge rod; 307. Elastic clamping plate. Detailed Implementation

[0040] 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.

[0041] Example 1, as Figures 1 to 15As shown, a self-aligning roller bearing cage dressing fixture includes a dust collection bin 10, a first drive motor 14 located at the center of the bottom of the dust collection bin 10, a first transmission shaft 17 located at the output end of the first drive motor 14, a first gear 16 located at the top of the first transmission shaft 17 extending into the interior of the dust collection bin 10, and a blade assembly 15 located at the center of the outer side of the first transmission shaft 17. The blade assembly 15 rotates with the first transmission shaft 17, driving airflow from top to bottom. A dust outlet port 12 is located on the outer side of the dust collection bin 10. The top of the fourth gear 221 is supported by a support ring 11. The inner side of the support ring 11 is supported by a support mechanism 200. The support mechanism 200 includes a support disc 202 that is fastened to the inner side of the support ring 11. The support mechanism 200 also includes several sets of first support frames 203 that are evenly arranged at the bottom of the support disc 202. The other end of the first support frame 203 of the fourth gear 221 is fastened to the inner side of the support ring 11. The inner side of the several sets of first support frames 203 of the fourth gear 221 is supported by a second support frame 214. The inner side of the second support frame 214 of the fourth gear 221 is supported by a support ring 222.

[0042] The fourth gear 221 supports the top bearing of the supporting ring 222, which supports the central shaft 216. A cam 215 is located on the top outer side of the central shaft 216. Both ends of the bottom of the cam 215 are hinged to first hinge rods 213. The fourth gear 221 is located in the middle of the outer side of the central shaft 216. A mounting chamber 212 is located at the bottom edge of the supporting ring 222. The bottom end of the central shaft 216 extends through the supporting ring 222 into the interior of the mounting chamber 212. The inner wall of the mounting chamber 212 is... Several sets of second springs 220 are evenly arranged and fastened to the outside of the central shaft 216. A second drive shaft 218 is provided on the outside of the fourth gear 221 mounting chamber 212, extending to the top of the second support frame 214. An incomplete gear 217 that intermittently meshes with the fourth gear 221 is provided on the top of the second drive shaft 218 of the fourth gear 221. A third gear 219 is provided at the bottom of the second drive shaft 218 of the fourth gear 221. The top of the first drive shaft 17 of the fourth gear 221 is connected to the bottom bearing of the mounting chamber 212. The third gear 219 of the fourth gear 221 meshes with the first gear 16.

[0043] The top of the fourth gear 221 support disc 202 is evenly provided with several sets of clamping mechanisms 300. The clamping mechanism 300 of the fourth gear 221 includes an elastic clamping plate 307. A retainer body 13 is provided at the edge of the top of the fourth gear 221 support ring 11. The elastic clamping plate 307 of the fourth gear 221 provides compression support to the inner side of the retainer body 13. Several sets of openings are evenly provided at both ends of the retainer body 13 of the fourth gear 221. The grinding head 105 of the fourth gear 221 is used to trim and grind the openings.

[0044] A dressing mechanism 100 is symmetrically slidably arranged at the bottom of the support disk 202 of the fourth gear 221. The dressing mechanism 100 includes a grinding head 105 and a first telescopic sleeve 101 disposed at the bottom of the support disk 202. The first telescopic sleeve 101 is slidably connected to the bottom of the support disk 202. A first telescopic rod 107 is sleeved on the end of the first telescopic sleeve 101 away from the center of the support disk 202. A support frame 103 is provided at the end of the first telescopic rod 107 away from the center of the support disk 202. A grinding assembly is provided at one end of the support frame 103 away from the first telescopic rod 107. The grinding assembly of the fourth gear 221 includes a second drive motor 104 and a grinding head 105. The support frame 103 of the fourth gear 221 has a "Z" shaped structure. The output end of the second drive motor 104 of the fourth gear 221 passes through the support frame 103 and is provided with the grinding head 105. The position and direction of the second drive motor 104 and the grinding head 105 located at one end of the two sets of support frames 103 correspond to the opening position of the retainer body 13. The support frame 103 of the fourth gear 221 and the bottom of the first telescopic rod 107 are provided with a first spring 106 at their respective ends.

[0045] The first telescopic rod 107 of the fourth gear 221 has two second telescopic sleeves 102 that are installed through both sides of the first telescopic rod 107 near the center of the support disc 202. The two ends of the second telescopic sleeve 102 of the fourth gear 221 are respectively fitted with second telescopic rods 108. The top of the second telescopic rods 108 of the fourth gear 221 is provided with a first synchronous connecting rod 109. The bottom end of the first telescopic rod 107 of the fourth gear 221 located inside the first telescopic sleeve 101 is provided with a limiting connecting rod 111 that extends to the bottom of the first telescopic sleeve 101. The bottom of the first telescopic sleeve 101 of the fourth gear 221 is provided with a first displacement through hole 110 that matches the limiting connecting rod 111. The other end of the first hinge rod 213 of the fourth gear 221 is hinged to the bottom end of the limiting connecting rod 111.

[0046] The top of the fourth gear 221 supporting disk 202 is evenly provided with several sets of limiting support grooves 208. The clamping mechanism 300 of the fourth gear 221 also includes a positioning support rod 301 that slides within the limiting support grooves 208. A second synchronous connecting rod 302 is provided at the top of the positioning support rod 301 near the center of the supporting disk 202, and an elastic clamping plate 307 is provided at the end of the positioning support rod 301 away from the center of the supporting disk 202. The inner ends of the elastic clamping plate 307 of gear 221 are respectively hinged with second hinge rods 306. The positioning support rod 301 of the fourth gear 221 has an installation groove 305 inside. One end of the installation groove 305 of the fourth gear 221 is provided with a hinge seat 303. The other ends of the second hinge rods 306 of the fourth gear 221 are respectively hinged to the hinge seat 303. A third spring 304 is provided between one end of the hinge seat 303 of the fourth gear 221 and the inner wall of the installation groove 305. The top of the support disc 202 is supported by a rotating disc 201. A support column 206 is located at the center of the bottom of the rotating disc 201. A positioning hole 207, matching the support column 206, is located at the center of the top of the support disc 202. Several sets of arc-shaped guide holes 205, matching the second synchronous connecting rod 302, are evenly distributed on the top of the rotating disc 201. The outer side of the support disc 202 is provided with… The third drive motor 210 and the fourth gear 221 are equipped with a second gear 209 on the top of the third drive motor 210. The outer side of the rotating disk 201 of the fourth gear 221 is equipped with an arc-shaped rack 204 that meshes with the second gear 209. The bottom of the limiting support groove 208 of the fourth gear 221 is equipped with a second displacement through hole 211. The top of the first synchronous connecting rod 109 of the fourth gear 221 passes through the second displacement through hole 211 and is fastened to the bottom of the positioning support rod 301.

[0047] The process of using the self-aligning roller bearing cage dressing fixture proposed in this embodiment is as follows: When using the dressing fixture, the cage body 13 that needs to be dressed and polished is placed on top of the support ring 11, so that the opening positions at the upper and lower ends of the cage body 13 correspond to the two sets of polishing heads 105.

[0048] Then, the third drive motor 210 is started to drive the second gear 209 to rotate. The second gear 209 drives the rotating disk 201 connected to the arc rack 204 to rotate as well. This causes the arc guide hole 205 to push and squeeze the second synchronous link 302. The second synchronous link 302 drives the positioning support rod 301 to move as a whole.

[0049] The displacement of the positioning support rod 301 causes the elastic clamping plate 307 to move closer to the inside of the cage body 13, so that the outer side of the elastic clamping plate 307 positions and presses the inner side of the cage body 13. When the outer side of the elastic clamping plate 307 is in contact with the inner side of the cage body 13, the elastic clamping plate 307 applies pressure to the second hinge rod 306 in the opposite direction, which causes the hinge seat 303 to move inside the mounting groove 305 and compress the third spring 304. The rebound force of the third spring 304 causes the second hinge rod 306 to generate a supporting force on the elastic clamping plate 307, so that the elastic clamping plate 307 can stably support the cage body 13.

[0050] While the positioning support rod 301 is displaced, the positioning support rod 301 drives the first synchronous connecting rod 109 to follow the displacement. The first synchronous connecting rod 109 drives the second telescopic sleeve 102 on the outside of the second telescopic rod 108 to push the first telescopic sleeve 101 as a whole closer to the inside of the cage body 13. When 9307 is in contact with the inner wall of the cage body 13, the grinding head 105 follows the displacement to the inner position of the opening of the cage body 13.

[0051] During the displacement of the second telescopic rod 108, the two sets of positioning support rods 301 continuously move away from each other, causing the second telescopic rod 108 to extend outward from the inside of the second telescopic sleeve 102, thereby ensuring that the first telescopic sleeve 101 moves synchronously with the positioning support rods 301.

[0052] Then, the first drive motor 14 is started to drive the first transmission shaft 17 to rotate. The first transmission shaft 17 drives the first gear 16 and the blade group 15 to rotate respectively. The rotation of the blade group 15 drives the airflow inside the dust collection chamber 10 to flow from top to bottom, thereby allowing the airflow at the top of the support ring 11 to supplement the interior of the dust collection chamber 10. Then, the powder and debris generated when the cage body 13 is repaired and polished are collected in the interior of the dust collection chamber 10 with the airflow and discharged from the dust outlet port 12.

[0053] The rotation of the first gear 16 drives the rotation of the third gear 219, which in turn drives the rotation of the incomplete gear 217 at the top of the second transmission shaft 218. When the incomplete gear 217 rotates and meshes with the fourth gear 221, it causes the central shaft 216 inside the fourth gear 221 to rotate and deflect, which in turn causes the cam 215 to rotate and deflect.

[0054] The cam 215 drives the first hinge rod 213 to push the first telescopic rod 107 to slide inside the first telescopic sleeve 101, thereby driving the second drive motor 104 and the grinding head 105 at one end of the support frame 103 to follow the displacement. While the central shaft 216 rotates, it drives the second spring 220 to extend, thereby generating a rebound force.

[0055] When the incomplete gear 217 rotates and does not mesh with the fourth gear 221, the central shaft 216 rotates in the opposite direction under the action of the rebound force of the second spring 220, thereby pulling the first telescopic rod 107 to move in the same direction, thus realizing the function of driving the grinding head 105 to move back to the reset position.

[0056] Furthermore, the second drive motor 104 is started to drive the grinding head 105 to rotate. As the grinding head 105 moves back and forth, the synchronous grinding function of the windows at the upper and lower ends of the cage body 13 is realized, which improves work efficiency.

[0057] The specific implementation of this embodiment has been described above. However, this embodiment is not limited to the specific implementation described above. The specific implementation described above is merely illustrative and not restrictive. Those skilled in the art can make many other forms based on the guidance of this embodiment, all of which are within the protection scope of this embodiment.

Claims

1. A tooling for dressing the cage of a self-aligning roller bearing, characterized in that, It includes a dust collection bin (10), the top of which is supported by a support ring (11), and the inner side of the support ring (11) is supported by a support mechanism (200), the support mechanism (200) including a support disc (202) which is fastened to the inner side of the support ring (11). The top of the support disc (202) is uniformly provided with several sets of clamping mechanisms (300), each clamping mechanism (300) including an elastic clamping plate (307). The bottom of the support disc (202) is symmetrically and slidably provided with a trimming mechanism (100), each trimming mechanism (100) including a grinding head (105). A retainer body (13) is provided at the top edge of the support ring (11). The elastic clamp (307) provides compression support to the inner side of the retainer body (13). Several sets of openings are evenly provided at both ends of the retainer body (13). The grinding head (105) trims and grinds the openings. The support mechanism (200) further includes several sets of first support frames (203) evenly arranged at the bottom of the support disc (202). The other end of the first support frame (203) is fastened to the inner side of the support ring (11). The inner side of each set of first support frames (203) is supported by a second support frame (214). The inner side of the second support frame (214) is supported by the support ring (222). The top bearing of the supporting ring (222) supports the central shaft (216). A cam (215) is provided on the top of the outer side of the central shaft (216). Both ends of the bottom of the cam (215) are hinged to the first hinge rod (213). A fourth gear (221) is provided in the middle of the outer side of the central shaft (216). An installation chamber (212) is provided at the edge of the bottom of the supporting ring (222). The bottom end of the central shaft (216) extends through the supporting ring (222) into the interior of the installation chamber (212). Several sets of second springs (220) are evenly provided on the inner wall of the installation chamber (212) and are fastened to the outer side of the central shaft (216). The outer side of the installation chamber (212) is provided with a second drive shaft (218) that extends through to the top of the second support frame (214). The top of the second drive shaft (218) is provided with an incomplete gear (217) that intermittently meshes with the fourth gear (221). The bottom of the second drive shaft (218) is provided with a third gear (219). The top of the first drive shaft (17) is connected to the bottom bearing of the installation chamber (212). The third gear (219) meshes with the first gear (16).

2. The self-aligning roller bearing cage dressing fixture according to claim 1, characterized in that, A first drive motor (14) is provided at the middle of the bottom of the dust collection chamber (10). A first transmission shaft (17) is provided at the output end of the first drive motor (14). The top of the first transmission shaft (17) extends into the interior of the dust collection chamber (10) and is provided with a first gear (16). A blade group (15) is provided at the middle of the outer side of the first transmission shaft (17). The blade group (15) rotates with the first transmission shaft (17) to drive the airflow from top to bottom. A dust outlet port (12) is provided on the outer side of the dust collection chamber (10).

3. The self-aligning roller bearing cage dressing fixture according to claim 1, characterized in that, The trimming mechanism (100) further includes a first telescopic sleeve (101) disposed at the bottom of the support disc (202). The first telescopic sleeve (101) is slidably connected to the bottom of the support disc (202). A first telescopic rod (107) is sleeved at one end of the first telescopic sleeve (101) away from the center of the support disc (202). A support frame (103) is disposed at one end of the first telescopic rod (107) away from the center of the support disc (202). A grinding component is disposed at one end of the support frame (103) away from the first telescopic rod (107).

4. The self-aligning roller bearing cage dressing fixture according to claim 3, characterized in that, The grinding assembly includes a second drive motor (104) and a grinding head (105). The support frame (103) has a "Z" shaped structure. The output end of the second drive motor (104) passes through the support frame (103) and is provided with a grinding head (105). The position and direction of the second drive motor (104) and the grinding head (105) located at one end of the two sets of support frames (103) correspond to the opening position of the retainer body (13). The support frame (103) and the bottom of the first telescopic rod (107) are provided with a first spring (106) at their respective ends.

5. A self-aligning roller bearing cage dressing fixture according to claim 4, characterized in that, The first telescopic rod (107) has a second telescopic sleeve (102) through both sides near the center of the support disc (202). The two ends of the second telescopic sleeve (102) are respectively fitted with second telescopic rods (108). The top of the second telescopic rods (108) is provided with a first synchronous connecting rod (109). The bottom end of the first telescopic rod (107) inside the first telescopic sleeve (101) is provided with a limiting connecting rod (111) that extends to the bottom of the first telescopic sleeve (101). The bottom of the first telescopic sleeve (101) is provided with a first displacement through hole (110) that matches the limiting connecting rod (111). The other end of the first hinge rod (213) is hinged to the bottom end of the limiting connecting rod (111).

6. A self-aligning roller bearing cage dressing fixture according to claim 5, characterized in that, The top of the support disc (202) is uniformly provided with several sets of limiting support grooves (208). The clamping mechanism (300) also includes a positioning support rod (301) that slides inside the limiting support groove (208). The top of the positioning support rod (301) near the center of the support disc (202) is provided with a second synchronous connecting rod (302). The end of the positioning support rod (301) away from the center of the support disc (202) is provided with an elastic clamping plate (307). The two ends of the inner side of the elastic clamping plate (307) are respectively hinged with a second hinge rod (306). The inside of the positioning support rod (301) is provided with an installation groove (305). One end of the installation groove (305) is provided with a hinge seat (303). The other end of the second hinge rod (306) is respectively hinged to the hinge seat (303). A third spring (304) is provided between one end of the hinge seat (303) and the inner wall of the installation groove (305).

7. A self-aligning roller bearing cage dressing fixture according to claim 6, characterized in that, The top of the supporting disk (202) is supported by a rotating disk (201). A support column (206) is provided at the center of the bottom of the rotating disk (201). A positioning hole (207) that matches the support column (206) is provided at the center of the top of the supporting disk (202). Several sets of arc-shaped guide holes (205) that match the second synchronous connecting rod (302) are evenly provided on the top of the rotating disk (201). The outer side of the supporting disk (202) is provided with... The third drive motor (210) has a second gear (209) on its top. The outer side of the rotating disk (201) has an arc-shaped rack (204) that meshes with the second gear (209). The bottom of the limiting support groove (208) has a second displacement through hole (211). The top of the first synchronous connecting rod (109) passes through the second displacement through hole (211) and is fastened to the bottom of the positioning support rod (301).

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