Diamond roller for bearing precision machining

Abstract

The utility model discloses a diamond roller for bearing precision machining, which comprises a diamond particle layer, a roller base body, a driving shaft and a self-locking assembly, a positioning shaft is arranged at the front end of the driving shaft, the roller base body comprises a roller outer ring, a roller inner ring and blades, the blades are arranged between the outer wall of the roller inner ring and the inner wall of the roller outer ring in an annular array mode, and the self-locking assembly is arranged between the roller outer ring and the roller inner ring. The self-locking assembly comprises floating plates, a guide column, a locking block and an elastic supporting piece, a through hole penetrating through the positioning shaft is formed in the driving shaft, the two floating plates are arranged in the through hole in parallel, the elastic supporting piece is arranged between the two floating plates, and a positioning groove corresponding to the guide groove is formed in the inner ring of the roller. The locking blocks are arranged on the floating plate and extend into the corresponding positioning grooves through the guide grooves, the guide columns are arranged on the floating plate and penetrate through the guide holes to extend outwards, the roller base body is fixed to the positioning shafts through the self-locking assemblies, nuts are not needed, the structure is stable, and the replacement operation rapidness of the roller base body is improved.

Description

Technical Field

[0001] This utility model relates to the field of diamond rollers, and more particularly to a diamond roller for precision machining of bearings. Background Technology

[0002] The bearing raceway requires high quality, and precision machining can be performed using diamond rollers. The rotation of the diamond rollers facilitates the grinding of the bearing raceway to obtain a precise raceway cross section.

[0003] Because some bearing raceways have a certain curvature or chamfer, the quality requirements for the outer diameter of the diamond roller are high in order to obtain a qualified raceway cross section. During continuous machining, the diamond roller wears down, rendering its outer diameter unsuitable for further precision machining of the bearing raceway, necessitating replacement of the diamond roller.

[0004] In the prior art, utility model patent application number 202323496792X discloses an ultra-precision bearing diamond roller. The roller body is fixed with a nut. When disassembling the roller body, the nut must be removed from the threaded post, and then the pressure block must be separated from the threaded post before the roller body can be pushed to remove the diamond roller. This operation is cumbersome and affects the efficiency of diamond roller replacement. Furthermore, fixing the roller body with only a single nut is not conducive to ensuring the stability of the roller body during rotation. Utility Model Content

[0005] The purpose of this invention is to provide a diamond roller for precision machining of bearings, which facilitates replacement and improves replacement efficiency and post-assembly stability.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A diamond roller for precision machining of bearings includes: a diamond particle layer, a roller base, a drive shaft, and a self-locking assembly. A positioning shaft is provided at the front end of the drive shaft. The roller base includes an outer ring, an inner ring, and blades. The diamond particle layer is disposed on the outer circumference of the outer ring. The inner ring is concentrically disposed within the inner hole of the outer ring. The blades are arranged in a ring array between the outer wall of the inner ring and the inner wall of the outer ring. The inner ring is concentrically sleeved on the positioning shaft. The self-locking assembly includes a float plate. The system comprises a guide post, a locking block, and a spring support. The drive shaft has a through hole penetrating the positioning shaft. Two floats are arranged parallel to each other in the through hole. The spring support is arranged between the two floats. The positioning shaft has symmetrical guide grooves pointing to the corresponding floats. The inner ring of the roller has a positioning groove corresponding to the guide groove. The locking block is arranged on the float and extends through the guide groove to the corresponding positioning groove. The drive shaft has a guide hole pointing to the corresponding float. The guide post is arranged on the float and extends outward through the guide hole.

[0008] The outer ring of the roller, the inner ring of the roller, and the blade adopt an integrated structure.

[0009] The blade extends in a direction that intersects the axial direction of the drive shaft.

[0010] The outer diameter of the positioning shaft is smaller than that of the drive shaft to form a step, and the back of the inner ring of the roller contacts the step.

[0011] The drive shaft is provided with a flange located behind the guide post.

[0012] The drive shaft, flange, and positioning shaft are integrated into a single structure.

[0013] The elastic support member is an X-shaped spring sheet.

[0014] The guide post is provided with a stud that penetrates the float and is connected to the elastic support member, and the elastic support member is provided with a threaded hole corresponding to the stud.

[0015] The outer ring of the roller is provided with an array of heat dissipation holes.

[0016] The beneficial effects of this utility model are as follows: A diamond roller for precision machining of bearings can fix the roller base on the positioning shaft through a self-locking component without the need for nuts. The structure is stable. When disassembling the roller base, pressing the guide post will cause the locking block to disengage from the positioning groove, thereby unlocking the roller base. This improves the speed of roller base replacement and increases work efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 yes Figure 1 Right view of the middle roller base;

[0019] Figure 3 yes Figure 1 A schematic diagram of the self-locking component. Detailed Implementation

[0020] The following is combined Figures 1 to 3 The technical solution of this utility model will be further illustrated through specific embodiments.

[0021] like Figures 1-3 The diamond roller for precision machining of bearings shown includes: a diamond particle layer 4, a roller base 3, a drive shaft 1, and a self-locking assembly 2. The front end of the drive shaft 1 is provided with a positioning shaft 11, and the drive shaft 1 is provided with a through hole 13 that passes through the positioning shaft 11 to facilitate the assembly of the self-locking assembly 2.

[0022] The roller base 3 includes an outer ring 32, an inner ring 31, and blades 33. The diamond particle layer 4 is disposed on the outer circle of the outer ring 32. Specifically, the diamond particle layer 4 can be fixed on the outer circle of the outer ring 32 by chemical or electroplating methods, resulting in a stable structure.

[0023] like Figure 2 As shown, the inner ring 31 of the roller is concentrically arranged in the inner hole of the outer ring 32 of the roller, and the blades 33 are arranged in a ring array between the outer wall of the inner ring 31 and the inner wall of the outer ring 32 of the roller, thereby connecting the outer ring 32 and the inner ring 31 of the roller. In this embodiment, the outer ring 32, the inner ring 31 of the roller, and the blades 33 adopt an integrated structure, which can be made of metal or ceramic, and has good high-temperature resistance.

[0024] Axially extending heat dissipation holes 34 are arrayed on the outer ring 32 of the roller to facilitate ventilation and heat dissipation. In addition, the extension direction of the blades 33 intersects the axis of the drive shaft 1, that is, the blades 33 have a certain tilt angle, which can push the airflow during the rotation of the drive shaft 1 to accelerate the air cooling of the roller base 3.

[0025] The inner ring 31 of the roller is concentrically fitted onto the positioning shaft 11. In this embodiment, the outer diameter of the positioning shaft 11 is smaller than the outer diameter of the drive shaft 1 to form a step. The back of the inner ring 312 of the roller contacts the step, thereby positioning the inner ring 312 of the roller on the positioning shaft 11 and improving the speed of assembly and the stability after assembly.

[0026] like Figure 3As shown, the self-locking assembly includes float plates 21, guide posts 23, locking blocks 22, and elastic support members 24. Two float plates 21 are arranged parallel to each other in the through hole 13, and the elastic support member 24 is positioned between the two float plates 21. In this embodiment, the elastic support member 24 is an X-shaped spring sheet, which can be obtained by welding steel sheets. The elastic support member 24 supports the two float plates 21, maintaining elastic pressure on the inner walls of both sides of the through hole 13. Furthermore, during rotation, the two float plates 21 can also utilize centrifugal force to maintain contact with the inner walls of both sides of the through hole 13, ensuring high safety.

[0027] Symmetrical guide grooves 15 pointing to the corresponding floats 21 are arranged on the positioning shaft 11. A positioning groove 35 corresponding to the guide groove is provided in the inner ring 31 of the roller. The locking block 22 is disposed on the float 21 and extends through the guide grooves 15 into the corresponding positioning groove 35, thereby locking the inner ring 31 of the roller on the positioning shaft 11 and preventing it from disengaging from the positioning shaft 11. No nut is required, resulting in high reliability. The locking block 22 is made of a rectangular steel block and is fixed to the float 21 by welding, ensuring structural stability.

[0028] A guide hole 14 is provided on the drive shaft 1, pointing to the corresponding float 21. The guide post 23 is provided on the float 21 and extends outward through the guide hole 14, which facilitates the inward movement of the float 21 by pressing the guide post 23 inward, compressing the elastic support 24, so that the locking block 22 is disengaged from the positioning groove 35, thereby unlocking the roller base 3 and improving the quickness of the replacement operation of the roller base 3.

[0029] like Figure 1 As shown, the guide post 23 is integrally provided with a stud 25 that penetrates the float 21 and is connected to the elastic support member 24. The end of the elastic support member 24 is provided with a threaded hole 26 corresponding to the stud 25, so as to realize the connection and fixation of the guide post 23, float 21 and elastic support member 24, which is convenient for assembly and avoids the problem of the elastic support member 24 detaching.

[0030] A flange 12 is provided on the drive shaft 1 behind the guide post 23 to facilitate the installation of the drive shaft 1. The drive shaft 1, flange 12 and positioning shaft 11 adopt an integrated structure, which can be made of steel and has high strength.

[0031] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A diamond roller for precision machining of bearings, characterized in that, include: The system comprises a diamond particle layer, a roller base, a drive shaft, and a self-locking assembly. The drive shaft has a positioning shaft at its front end. The roller base includes an outer ring, an inner ring, and blades. The diamond particle layer is disposed on the outer circumference of the outer ring. The inner ring is concentrically disposed within the inner hole of the outer ring. The blades are arranged in a ring array between the outer and inner walls of the inner ring. The inner ring is concentrically fitted onto the positioning shaft. The self-locking assembly includes floats, guide posts, locking blocks, and elastic supports. The drive shaft has a through hole penetrating the positioning shaft. Two floats are arranged parallel to each other within the through hole. The elastic supports are disposed between the two floats. The positioning shaft has symmetrically arranged guide grooves pointing to corresponding floats. The inner ring of the roller has a positioning groove corresponding to the guide groove. The locking block is disposed on the float and extends through the guide groove to the corresponding positioning groove. The drive shaft has a guide hole pointing to the corresponding float. The guide post is disposed on the float and extends outward through the guide hole.

2. The diamond roller for precision machining of bearings according to claim 1, characterized in that, The outer ring of the roller, the inner ring of the roller, and the blade adopt an integrated structure.

3. The diamond roller for precision machining of bearings according to claim 1, characterized in that, The extension direction of the blades intersects the axial direction of the drive shaft.

4. The diamond roller for precision machining of bearings according to claim 1, characterized in that, The outer diameter of the positioning shaft is smaller than the outer diameter of the drive shaft to form a step, and the back of the inner ring of the roller contacts the step.

5. The diamond roller for precision machining of bearings according to claim 1, characterized in that, The drive shaft is equipped with a flange located behind the guide post.

6. The diamond roller for precision machining of bearings according to claim 1, characterized in that, The drive shaft, flange, and positioning shaft are integrated into a single structure.

7. The diamond roller for precision machining of bearings according to claim 1, characterized in that, The elastic support component adopts an X-shaped spring sheet.

8. The diamond roller for precision machining of bearings according to claim 1, characterized in that, The guide post is provided with a stud that penetrates the float and is connected to the elastic support member, and the elastic support member is provided with a threaded hole corresponding to the stud.

9. The diamond roller for precision machining of bearings according to claim 1, characterized in that, The outer ring of the roller is provided with an array of heat dissipation holes.

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