Steel ball grinding groove forced exchange device
By designing a forced exchange device for steel ball grinding grooves, the groove position exchange of steel balls during the grinding process is achieved through material discharge holes, guide grooves, guide holes and guide grooves, which solves the problem of unbalanced steel ball grinding and improves the appearance accuracy of steel balls.
Patent Information
- Application Number
- CN202422110456.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-28
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-08-28
AI Technical Summary
In the prior art, the internal and external diameter ratio of the steel ball vertical grinder is too large, resulting in too large difference in the linear speed of the inner and outer grinding channels, resulting in uneven grinding of the steel ball, and the internal and external groove size deviation after a long period of time, affecting the appearance accuracy of the steel ball.
A forced exchange device for steel ball grinding grooves is designed, and the forced exchange of groove positions of steel balls during the grinding process is achieved through material discharge holes, guide grooves, guide holes and guide grooves. The steel balls are alternately ground from the outer groove to the inner groove, and finally exchanged from the inner groove back to the outermost side, forming a cycle.
The inner and outer groove depth dimensions are achieved, the steel ball appearance accuracy is improved, and the grinding is balanced, solving the problem of uneven grinding of steel balls.
Smart Images
Figure CN223160654U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bearings, in particular to a steel ball grinding groove forced exchange device. Background Art
[0002] A bearing includes an inner ring and an outer ring. Steel balls are installed between the inner ring and the outer ring through a cage. To ensure the stability and no abnormal noise during the rotation of the bearing, it is necessary to ensure the surface roughness of the steel balls. Generally, the purchased steel balls need to be ground to ensure their surface roughness. A vertical steel ball grinding machine is used for grinding. The ratio of the inner diameter to the outer diameter of the vertical steel ball grinding machine is too large, resulting in a too large difference in the linear velocity between the inner grinding groove and the outer grinding groove. This difference will cause the steel balls to be in an unbalanced grinding state. After long-term grinding, the grooves of the inner grinding groove and the outer grinding groove will have dimensional deviations, resulting in a decrease in the shape accuracy of the steel balls. Using a ball shoveling plate can alleviate this phenomenon to a certain extent, but it cannot achieve complete groove exchange, and the inner and outer grinding grooves cannot be evenly ground completely. Content of the Utility Model
[0003] The technical problem to be solved by the utility model is to provide a steel ball grinding groove forced exchange device aiming at the deficiencies of the above-mentioned prior art.
[0004] To solve the above technical problem, the technical solution adopted by the utility model is:
[0005] A steel ball grinding groove forced exchange device includes a first exchange seat and a second exchange seat. Guide seats are evenly distributed at the bottom of the first exchange seat, and a feeding hole is opened in each guide seat. A support plate is arranged on one side of the first exchange seat, and discharge grooves are evenly distributed on the surface of the support plate. The second exchange seat is arranged on the support plate, and the back surface of the second exchange seat is attached to the side surface of the first exchange seat. Guide grooves are evenly distributed on the back surface of the second exchange seat, and guide holes are arranged on the side surfaces of the guide grooves. One end of each guide groove and the corresponding guide hole is communicated with the corresponding feeding hole, and the other end of the guide groove is communicated with the discharge groove on the surface of the support plate in a staggered manner. A guide groove is machined on the front surface of the second exchange seat, and the other end of the guide hole is communicated with the guide groove. The guide groove is communicated with the discharge groove outside the surface of the support plate.
[0006] Furthermore, fixing holes are machined on both sides of the surface of the first exchange seat.
[0007] Furthermore, mounting holes are machined on one side surface of the first exchange seat, and counterbored holes are machined on both sides of the second exchange seat. The counterbored holes are connected to the mounting holes through countersunk head screws.
[0008] Furthermore, connecting holes are machined on the second exchange seat below the counterbored holes.
[0009] Furthermore, the entrance of the feeding hole adopts a tip structure.
[0010] Compared with the prior art, a forced exchange device for grinding grooves of steel balls of the present utility model realizes the forced exchange of the groove positions of steel balls during the grinding process through the material feeding holes, guiding grooves, guiding holes and guiding channels. The steel balls are ground alternately from the outer groove to the inner groove and finally exchanged back from the inner groove to the outermost side, forming a cycle, with balanced grinding, uniform groove depth dimensions for both the inner and outer grooves, and improved profile accuracy of the steel balls. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 is a schematic structural view of the present utility model;
[0012] Figure 2 is a schematic structural view of the first exchange seat of the present utility model;
[0013] Figure 3 is a front view of the first exchange seat of the present utility model:
[0014] Figure 4 is Figure 3 a sectional view taken along line A-A in
[0015] Figure 5 is Figure 4 an enlarged view at B in
[0016] Figure 6 is a front structural view of the second exchange seat of the present utility model;
[0017] Figure 7 is a rear structural view of the second exchange seat of the present utility model;
[0018] Figure 8 is a schematic structural view of the installation of the present utility model with a ball grinding machine;
[0019] Figure 9 is a schematic diagram of the principle of forced exchange of the present utility model;
[0020] Wherein, 1, the first exchange seat; 2, the second exchange seat; 3, the guiding seat; 4, the material feeding holes; 5, the supporting plate; 6, the discharging groove; 7, the installation holes; 8, the counterbore holes; 9, the guiding grooves; 10, the guiding holes; 11, the guiding channels; 12, the tip structure; 13, the connecting holes; 14, the fixing holes. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0021] The technical solutions in the embodiments of the present utility model will be clearly and completely described below.
[0022] Such as Figures 1 to 7As shown in the figure, a forced exchange device for steel ball grinding grooves includes an exchange seat 1 and an exchange seat 2. The bottom of the exchange seat 1 is evenly distributed with guide seats 3, and the guide seats 3 are matched with the grooves on the grinding machine. A material passage hole 4 is opened in the guide seat 3. One side of the exchange seat 1 is provided with a support plate 5, and the surface of the support plate 5 is evenly distributed with discharge grooves 6. The exchange seat 2 is arranged on the support plate 5, and the back surface of the exchange seat 2 is attached to the side surface of the exchange seat 1. Among them, a mounting hole 7 is processed on the side surface of the exchange seat 1, and counterbore holes 8 are processed on both sides of the exchange seat 2. The exchange seat 2 is fixedly connected to the mounting hole 7 through countersunk head screws at the counterbore holes 8. The back surface of the exchange seat 2 is evenly distributed with guide grooves 9, and a guide hole 10 is arranged on the side surface of the guide groove 9. One end of the guide groove 9 and the guide hole 10 is communicated with the corresponding material passage hole 4, and the other end of the guide groove 9 is misaligned and communicated with the discharge groove 6 on the surface of the support plate 5. A guide groove 11 is processed on the front surface of the exchange seat 2, and the other end of the guide hole 10 is communicated with the guide groove 11. The guide groove 11 is communicated with the discharge groove 6 outside the surface of the support plate 5.
[0023] In this embodiment, 23 guide seats 3 are arranged at the bottom of the exchange seat 1, and a material passage hole 4 is opened in each guide seat 3. After the bottom of the material passage hole 4 is processed, a tip structure 12 is formed at the entrance. By setting the tip structure 12, it is convenient to scoop up the steel balls in the grooves and make the steel balls smoothly enter the material passage hole 4. Among them, the material passage hole 4 is obliquely arranged to make the steel balls roll upward into the guide groove 9. The side surface of the exchange seat 1 is an inclined surface, and the exchange seat 2 is attached to the inclined surface of the side surface of the exchange seat 1. The steel balls entering the guide groove 9 roll down along the inclined surface of the side surface of the exchange seat 1 and fall into the discharge groove 6. In this embodiment, 23 discharge grooves 6 are opened on the support plate 5, 22 guide grooves 9 and 1 guide hole 10 are processed on the exchange seat 2. The 1 guide hole 10 is located on the inner side edge of the guide groove 9. One end of the 22 guide grooves 9 and the 1 guide hole 10 is communicated with the corresponding material passage hole 4, and the other ends of the 22 guide grooves 9 are communicated with the second to the last discharge grooves 6 on the support plate 5. A guide groove 11 is processed on the front surface of the exchange seat 2, and the other end of the guide hole 10 is communicated with the guide groove 11. The guide groove 11 is obliquely arranged and communicated with the first discharge groove 6 outside the surface of the support plate 5. In this embodiment, a connection hole 13 is processed below the counterbore hole 8 of the exchange seat 2, and the connection hole 13 is used to install a cover plate to cover the guide groove 11.
[0024] As Figure 8 shown, fixing holes 14 are processed on both sides of the surface of the exchange seat 1, and the entire forced exchange device is fixed on the grinding disc of the ball grinding machine through the fixing holes 14. The guide seats 3 at the bottom of the exchange seat 1 are matched with the respective grooves on the grinding disc. As Figure 9 shown, it is the schematic diagram of the steel balls after being exchanged by the forced exchange device. The steel balls are alternately ground from the outer groove to the inner groove and finally exchanged back to the outermost side from the inner groove to form a cycle, so that the groove depth dimensions of the inner and outer grooves are uniform and the grinding is uniform.
[0025] The present utility model is not limited to the described embodiments. Those skilled in the art can still make some modifications or changes without departing from the spirit of the present utility model, that is, within the scope of disclosure. Therefore, the scope of protection of the rights of the present utility model shall be subject to the scope defined by the claims.
Claims
1. A forced exchange device for grinding grooves of steel balls, characterized in that: It includes a first exchange seat and a second exchange seat. Guide seats are evenly distributed at the bottom of the first exchange seat, and a material passing hole is formed in each guide seat. A support plate is arranged on one side of the first exchange seat, and discharge grooves are evenly distributed on the surface of the support plate. The second exchange seat is arranged on the support plate, and the back surface of the second exchange seat is attached to the side surface of the first exchange seat. Guide grooves are evenly distributed on the back surface of the second exchange seat, and guide holes are arranged on the side surfaces of the guide grooves. One ends of the guide grooves and the guide holes are communicated with the corresponding material passing holes, and the other ends of the guide grooves are misaligned and communicated with the discharge grooves on the surface of the support plate. A guide groove is machined on the front surface of the second exchange seat, and the other ends of the guide holes are communicated with the guide groove. The guide groove is communicated with the discharge groove outside the surface of the support plate.
2. The forced exchange device for grinding grooves of steel balls according to claim 1, characterized in that: Fixing holes are machined on both sides of the surface of the first exchange seat.
3. The forced exchange device for steel ball grinding grooves according to claim 1, characterized in that: Mounting holes are machined on one side surface of the first exchange seat, and counterbore holes are machined on both sides of the second exchange seat. The counterbore holes are connected to the mounting holes through countersunk head screws.
4. The forced exchange device for steel ball grinding grooves according to claim 3, wherein: Connecting holes are machined on the second exchange seat below the counterbore holes.
5. The forced exchange device for steel ball grinding grooves according to claim 1, wherein: The inlet of the material passing hole adopts a tip structure.