Polishing device for bearing ring
By designing a bearing ring grinding device, the synchronous grinding of the upper and lower ends of the bearing rings is achieved using positioning columns and negative pressure adsorption technology, the problem of inefficiency in the prior art is solved, the grinding efficiency is improved, and the versatility and adsorption force of the device are enhanced.
Patent Information
- Application Number
- CN202422517199.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-17
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-10-17
AI Technical Summary
In the prior art, the grinding efficiency of bearing rings is low, and the two end faces of bearing rings need to be individually polished, resulting in wasted time and low efficiency.
A grinding device for bearing rings is designed, and the bearing ring is driven to rotate by positioning columns and rotate relative to the upper and lower grinding discs, so as to achieve synchronous polishing of the upper and lower end surfaces of the bearing rings is achieved, and the ferrule is fixed by negative pressure adsorption, and automatic operation is achieved through rotating electric machines and gear sets.
Synchronous grinding of both end surfaces of the bearing ring is achieved, grinding efficiency is improved, the universality of the device and vacuum adsorption force are enhanced, and the mark is avoided on the inner wall of the ring.
Smart Images
Figure CN223235854U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bearing processing, in particular to a grinding device for a bearing ring. Background Art
[0002] Bearings are precision mechanical components that convert sliding friction between a rotating shaft and its seat into rolling friction, thereby reducing frictional losses. During the bearing production process, both end faces of the bearing rings need to be polished. Currently, this process involves securing the bearing rings in a chuck, and then moving a rotating grinding disc, driven by a cylinder, to the end faces of the bearing rings to polish them. However, after polishing one end face of the bearing, the bearing must be disassembled and flipped over before polishing the other end face. This reinstallation process is time-consuming and inefficient. Utility Model Content
[0003] In order to solve the above problems, the utility model provides a grinding device for a bearing ring, which can grind both end surfaces of the bearing ring at the same time, thereby improving the grinding efficiency.
[0004] To this end, the technical solution of the utility model is: a grinding device for bearing rings, including a workbench, a positioning column is provided on the workbench, the positioning column passes through the opening on the workbench, and the bottom of the positioning column is connected to the rotating motor through a gear set; the positioning column is a hollow structure, an air suction pipe is provided inside, the air suction pipe is connected to the negative pressure generator, a fixed sleeve is provided on the upper end of the positioning column, a vent is provided on the fixed sleeve, and the vent is in a negative pressure state; a lower grinding disc is installed on the workbench, and the lower grinding disc is mounted on the outside of the positioning column; a bracket is provided on the workbench, and a liftable upper grinding disc is provided on the bracket, the upper grinding disc and the lower grinding disc are positioned opposite to each other and work in coordination.
[0005] On the basis of the above scheme and as a preferred scheme of the above scheme: it also includes a movable seat and a fixed seat, the upper grinding disc is installed on a fixed seat, a guide rod is installed above the fixed seat, a spring is provided on the guide rod, the upper end of the guide rod passes through the movable seat, and both ends of the spring rest on the fixed seat and the movable seat.
[0006] On the basis of the above scheme and as a preferred scheme of the above scheme: a vertically arranged linear moving module is provided on one side of the bracket, and a guide rail is provided on the other side; one end of the movable seat is installed on the linear moving module, and the other end is slidably installed on the guide rail.
[0007] On the basis of the above solution and as a preferred solution of the above solution: the outer diameter of the fixing sleeve matches the inner diameter of the bearing ring, and the fixing sleeve absorbs the bearing ring through the negative pressure vent hole.
[0008] On the basis of the above solution and as a preferred solution of the above solution: the upper grinding disc and the lower grinding disc are both annular structures, and are provided with a plurality of chip removal grooves.
[0009] When in use, a fixing sleeve of appropriate specifications is selected according to the inner diameter of the bearing ring, and the fixing sleeve is installed on the positioning column, and the two can be fixed by screw locking; then, the bearing ring is sleeved on the fixing sleeve, and the movable seat moves down, so that the upper grinding disc moves down to fit the upper end surface of the bearing ring, and the lower grinding disc fits the lower end surface of the bearing ring; then, the negative pressure generator is started, so that the vent hole on the fixing sleeve is in a negative pressure state, firmly adsorbing the bearing ring; then, the rotating motor is started, and the rotating motor drives the positioning column to rotate through the gear set, and the positioning column drives the bearing ring to rotate, so that the upper end surface and the lower end surface of the bearing ring rotate relative to the upper grinding disc and the lower grinding disc respectively, to perform the end face grinding work; after the grinding is completed, the rotating motor stops working, and the movable seat drives the upper grinding disc to move up and leave the upper end surface of the bearing ring, and then the negative pressure generator stops the negative pressure, the negative pressure state at the vent hole stops, and the polished bearing ring can be removed.
[0010] Compared with the prior art, the beneficial effects of the present invention are:
[0011] 1. The positioning column is used to drive the bearing ring to rotate, and the upper and lower grinding discs on both sides of the end face rotate relative to each other, so that the upper and lower end faces of the bearing ring are polished synchronously, greatly improving the polishing efficiency.
[0012] 2. Fixing sleeves of different sizes on the outside of the positioning column can vacuum adsorb bearing rings of different specifications. It has strong versatility and good vacuum adsorption force, and will not leave marks on the inner wall of the sleeve ring. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a structural diagram of the utility model;
[0014] Figure 2 This is a structural sectional view of the utility model;
[0015] Figure 3 This is a schematic diagram of the structure of the utility model in a grinding state;
[0016] Figure 4 This is a cross-sectional view of the structure of the utility model in a polishing state;
[0017] Figure 5 for Figure 4 A partial enlarged view of
[0018] Figure 6 It is a structural schematic diagram of the lower grinding disc of the utility model.
[0019] Marked in the figure are: workbench 1, lower grinding disc mounting seat 11, lower grinding disc 2, chip groove 21, positioning column 3, driven gear 31, rotating motor 4, driving gear 41, suction pipe 5, negative pressure generator 51, fixed sleeve 6, vent 61, bracket 7, linear motion module 71, guide rail 72, moving seat 8, upper grinding disc fixing seat 9, guide rod 91, spring 92, upper grinding disc 93, bearing ring 10. DETAILED DESCRIPTION
[0020] In the description of the present invention, it should be noted that, for directional words, such as the terms "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and so on, indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific protection scope of the present invention.
[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Therefore, the terms "first" and "second" may explicitly or implicitly refer to one or more of these features. In the description of this utility model, "several" and "a number" mean two or more, unless otherwise specifically defined.
[0022] See the accompanying drawings. The bearing ring grinding device described in this embodiment includes a workbench 1, with a lower grinding disc mounting seat 11 fixed thereto. An annular lower grinding disc 2 is fixed to the lower grinding disc mounting seat 11. Both the lower grinding disc mounting seat 11 and the workbench 1 are provided with openings for a positioning column 3 to pass through. The positioning column 3 passes through the opening in the workbench 1, and a driven gear 31 is fixed to the outer side of the bottom of the positioning column 3. A rotating motor 4 is mounted below the workbench 1. A driving gear 41 is mounted on the output shaft of the rotating motor 4, meshing with the driven gear 31. The rotating motor 4 can drive the positioning column 3 to rotate.
[0023] The positioning column 3 is a hollow structure with an air suction pipe 5 inside. The air suction pipe 5 is rotatably connected to the lower end of the positioning column 3 through a bearing. A negative pressure generator 51 is connected below the air suction pipe 5. The negative pressure generator 51 can make the interior of the positioning column 3 present a negative pressure. The upper end of the positioning column 3 is covered with a fixed sleeve 6. The fixed sleeve 6 is provided with an air vent 61, and the air vent 61 is connected to the interior of the positioning column 3, so that the air vent 61 is in a negative pressure state, which can fix the bearing ring. The outer diameter of the fixed sleeve 6 matches the inner diameter of the bearing ring, and the fixed sleeve absorbs the bearing ring through the negative pressure air vent 61. A fixed sleeve 6 of appropriate specifications is selected according to the inner diameter of the bearing ring, and the fixed sleeve 6 is installed on the positioning column 3. The two can be fixed by screw locking.
[0024] A bracket 7, a movable seat 8 and an upper grinding disc fixed seat 9 are provided above the workbench 1. A vertically arranged linear movable module 71 is provided on one side of the bracket 7, and a guide rail 72 is provided on the other side. One end of the movable seat 8 is mounted on the linear movable module 71, and the other end is slidably mounted on the guide rail 72. The upper grinding disc 93 is mounted on the upper grinding disc fixed seat 9. A guide rod 91 is installed above the upper grinding disc fixed seat 9. A spring 92 is provided on the guide rod. The upper end of the guide rod 91 passes through the movable seat 8, and the two ends of the spring 92 rest on the upper grinding disc fixed seat 9 and the movable seat 8. The upper grinding disc 93 is positioned opposite to the lower grinding disc 2 and works in coordination. The upper grinding disc 93 and the lower grinding disc 2 are both annular structures, and a number of chip removal grooves 21 are provided on the upper grinding disc 93 and the lower grinding disc 2 to accommodate waste chips generated by grinding.
[0025] When in use, select a fixing sleeve 6 of appropriate specifications according to the inner diameter of the bearing ring 10, and install the fixing sleeve 6 on the positioning column 3, and the two can be fixed by screw locking; then, the bearing ring 10 is sleeved on the fixing sleeve 6, and the movable seat 8 is moved down, so that the upper grinding disc 93 moves down to fit the upper end surface of the bearing ring 10, and the lower grinding disc 2 fits the lower end surface of the bearing ring 10; then, start the negative pressure generator 51, so that the vent hole 61 on the fixing sleeve 6 is in a negative pressure state, firmly adsorbing the bearing ring 10; then, Start the rotating motor 4, which drives the positioning column 3 to rotate through the gear set, and the positioning column 3 drives the bearing ring 10 to rotate, so that the upper end face and the lower end face of the bearing ring 10 rotate relative to the upper grinding disc 93 and the lower grinding disc 2 respectively, and the end face grinding work is performed; after the grinding is completed, the rotating motor 4 stops working, and the moving seat 8 drives the upper grinding disc 93 to move upward and leave the upper end face of the bearing ring 10, then the negative pressure generator 51 stops the negative pressure, and the negative pressure state at the vent 61 stops, and the polished bearing ring 10 can be removed.
[0026] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.
Claims
1. A grinding device for a bearing ring, characterized in that: It includes a workbench, on which is provided a positioning column, which passes through an opening on the workbench, and the bottom of the positioning column is connected to the rotating motor through a gear set; the positioning column is a hollow structure, and an air suction pipe is provided inside, and the air suction pipe is connected to a negative pressure generator; a fixed sleeve is provided on the upper end of the positioning column, and a vent is provided on the fixed sleeve, and the vent is in a negative pressure state; a lower grinding disc is installed on the workbench, and the lower grinding disc is mounted on the outside of the positioning column; a bracket is provided on the workbench, and a liftable upper grinding disc is provided on the bracket, and the upper grinding disc and the lower grinding disc are positioned opposite to each other and work in coordination.
2. A bearing ring grinding device according to claim 1, characterized in that: It also includes a movable seat and a fixed seat. The upper grinding disc is installed on a fixed seat. A guide rod is installed above the fixed seat. A spring is provided on the guide rod. The upper end of the guide rod passes through the movable seat, and both ends of the spring rest on the fixed seat and the movable seat.
3. A bearing ring grinding device according to claim 2, characterized in that: One side of the bracket is provided with a vertically arranged linear motion module, and the other side is provided with a guide rail; one end of the moving seat is installed on the linear motion module, and the other end is slidably installed on the guide rail.
4. A bearing ring grinding device according to claim 1, characterized in that: The outer diameter of the fixing sleeve matches the inner diameter of the bearing ring, and the fixing sleeve absorbs the bearing ring through the negative pressure vent hole.
5. A bearing ring grinding device according to claim 1, characterized in that: The upper grinding disc and the lower grinding disc are both annular structures, and are both provided with a plurality of chip removal grooves.