High-speed ceramic grinding wheel for automobile hub bearing flange

Abstract

The high-speed ceramic grinding wheel for the automobile hub bearing flange comprises a center disc, a grinding assembly is installed outside the center disc, a main connecting hole is formed in the middle of the center disc, one or more auxiliary connecting holes are formed in the center disc, and the auxiliary connecting holes are distributed outside the main connecting hole at equal intervals. The grinding assembly comprises a grinding wheel disc arranged on the outer wall of the circumference of the center disc in a sliding and sleeving mode, the outer wall of the circumference of the center disc and the inner wall of the circumference of the grinding wheel disc are each provided with four first mounting grooves distributed at equal intervals, and the inner wall of one end of each of the four first mounting grooves on the inner side is fixedly connected with two first springs. The grinding wheel disc can be divided into two parts, it is guaranteed that the disassembly and assembly process is convenient enough, meanwhile, the grinding wheel disc is stable enough during operation, the center disc can be repeatedly used, and even if the grinding wheel disc is broken and discarded, excessive waste cannot be caused.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts manufacturing technology, specifically to a high-speed ceramic grinding wheel for automotive wheel hub bearing flanges. Background Technology

[0002] The flange of an automotive wheel hub bearing is an important component of automotive wheel hub bearings, and its manufacturing process has a significant impact on the bearing's performance and lifespan. The flange manufacturing process typically includes forging, machining, and heat treatment. In the machining process, grinding with an abrasive wheel is a commonly used method, where the surface of the workpiece is ground by the rotation of the grinding wheel and its contact with the workpiece.

[0003] A search revealed a utility model patent with Chinese patent publication number CN208068054U, which discloses a large-size ceramic high-speed grinding wheel, comprising a grinding wheel, an outer fixed wheel, and a top cover; the grinding wheel is provided with several protrusions; the grinding wheel has a grinding wheel shaft hole in the center; the outer fixed wheel is installed on both sides of the grinding wheel; the outer fixed wheel is provided with an annular groove; the annular groove is provided with several stops; the protrusions on the grinding wheel are sequentially embedded in the annular grooves between adjacent stops and can slide within their respective annular grooves; hydraulic oil is injected into the annular grooves.

[0004] When the above-mentioned device is fixed, multiple nuts and bolts are used to fix it in order to ensure that the grinding wheel is stable enough. This will make the disassembly and assembly process more complicated and the use more inconvenient. Furthermore, if a part of the grinding wheel surface is missing, it cannot be used and must be discarded, which is quite wasteful. Utility Model Content

[0005] The purpose of this invention is to provide a high-speed ceramic grinding wheel for automotive wheel hub bearing flanges, in order to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-speed ceramic grinding wheel for automotive wheel hub bearing flanges, comprising a central disc, a grinding assembly mounted on the outside of the central disc, a main connecting hole in the center of the central disc, and one or more auxiliary connecting holes equidistantly distributed outside the main connecting hole. The grinding assembly includes a grinding wheel disc slidably fitted onto the outer circumference of the central disc. Four equidistant first mounting slots are provided on both the outer circumference of the central disc and the inner circumference of the grinding wheel disc. Two springs are fixedly connected to one end of each of the four inner first mounting slots. One end of each spring is fixedly connected to the same first driving plate. The first driving plate is slidably inserted into the first mounting slot, and the four first driving plates are slidably inserted into the four outer first mounting slots respectively.

[0007] As a further preferred embodiment of this technical solution, the outer circumference of the central disk and the inner circumference of the grinding wheel disk are each provided with four equally spaced second mounting slots, and the four second mounting slots are staggered with the four first mounting slots. Two springs are fixedly connected to the inner wall of one end of each of the four inner second mounting slots, and the two springs are fixedly connected to the same second drive plate, which is completely inside the second mounting slot.

[0008] As a further preferred embodiment of this technical solution, an extension post is fixedly connected to one end of the outer wall of each of the four first drive plates, and four clearance grooves are provided on one end of the outer wall of the central disk, and the four clearance grooves are respectively connected to the four first mounting grooves. The four extension posts pass through the four clearance grooves and extend outward.

[0009] The grinding wheel can be divided into two parts, ensuring convenient disassembly and assembly while maintaining stable operation. The center disc is reusable, minimizing waste even if the grinding wheel breaks and is discarded. Pushing the four extension posts towards the center of the center disc applies force to the first spring via the first drive plate, compressing it. The first drive plate then enters the first mounting slot. Once it exits the first mounting slot, the grinding wheel's position is no longer restricted, allowing for easy removal and replacement. As the center disc rotates, the four first drive plates synchronize the rotation of the grinding wheel. With increased centrifugal force, the tension of the second spring is overcome, and the second drive plate moves out of the second mounting slot under centrifugal force, subsequently entering the second mounting slot of the grinding wheel, thus reinforcing it and increasing the grinding wheel's operational stability.

[0010] As a further preferred embodiment of this technical solution, two equally spaced limiting components are installed on the outside of the central disk. Each limiting component includes a mounting column fixedly connected to the outer wall of one end of the central disk. A limiting plate is rotatably connected to the outside of the mounting column via a bearing. The limiting plate is in contact with the outer wall of the grinding wheel. A magnet is fixedly connected to the outer wall of one end of the central disk, and the limiting plate is attracted to the outside of the magnet.

[0011] When the movable end of the limiting plate is moved, the limiting plate will come into contact with the grinding wheel and abut against its outer wall, thus restricting the position of the grinding wheel and preventing it from shaking arbitrarily. Then the limiting plate and the magnet will stick together, so that the position of the limiting plate will not change arbitrarily.

[0012] As a further preferred embodiment of this technical solution, the corner of the limiting plate near the magnet is rounded.

[0013] As a further preferred embodiment of this technical solution, a positioning ring is coaxially fixed to the outer wall of one end of the central disk, and the diameter of the positioning ring is larger than the diameter of the central disk.

[0014] As a further preferred embodiment of this technical solution, the four corners at the ends of the four first drive boards and the four second drive boards are all provided with beveled angles.

[0015] This utility model provides a high-speed ceramic grinding wheel for automotive wheel hub bearing flanges, which has the following beneficial effects:

[0016] (1) By setting up a grinding component, this utility model can divide the grinding wheel into two parts, ensuring that the disassembly and assembly process is convenient enough, while also making the grinding wheel run stably. The center plate can be reused, so even if the grinding wheel breaks and is discarded, it will not cause too much waste. Pushing the four extension columns toward the center of the center plate, the thrust will be applied to the first spring through the first drive plate. The first spring will be compressed and shortened. Then the first drive plate will enter the first mounting groove. Finally, when it is removed from the first mounting groove in the grinding wheel, the position of the grinding wheel will no longer be restricted, and it can be easily removed and replaced. When the center plate is driven to rotate, it can drive the grinding wheel to rotate synchronously through the four first drive plates. As the centrifugal force increases, the tension of the second spring is overcome. The second drive plate moves out of the second mounting groove under the action of centrifugal force and then enters the second mounting groove of the grinding wheel, thereby achieving a reinforcement effect and increasing the stability of the grinding wheel during operation.

[0017] (2) By setting a limiting component, the movable end of the limiting plate is moved, and the limiting plate will contact the grinding wheel and abut against its outer wall, so that the position of the grinding wheel can be restricted and will not shake at will. Then the limiting plate and the magnet are attached to each other, so that the position of the limiting plate will not change at will. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall first-view structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the overall second-view structure of this utility model;

[0020] Figure 3 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0021] Figure 4 For the present utility model Figure 2 Enlarged structural diagram at point B;

[0022] In the diagram: 1. Center plate; 2. Main connecting hole; 3. Auxiliary connecting hole; 4. Grinding assembly; 5. Limiting assembly; 6. Positioning ring; 401. Grinding wheel; 402. First mounting slot; 403. First drive plate; 404. Spring one; 405. Extension post; 406. Second mounting slot; 407. Spring two; 408. Second drive plate; 409. Angled corner; 501. Mounting post; 502. Limiting plate; 503. Magnet; 504. Rounded corner. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0024] This utility model provides a technical solution: such as Figure 1 , Figure 2 and Figure 3 As shown, in this embodiment, the high-speed ceramic grinding wheel for automotive wheel hub bearing flanges includes a central disk 1, a grinding assembly 4 mounted on the outside of the central disk 1, a main connecting hole 2 in the center of the central disk 1, and one or more auxiliary connecting holes 3 inside the central disk 1, with the auxiliary connecting holes 3 evenly distributed outside the main connecting hole 2. The grinding assembly 4 includes a grinding wheel disk 401 slidably fitted on the outer circumference of the central disk 1. The outer circumference of the central disk 1 and the inner circumference of the grinding wheel disk 401 are both provided with four equally distributed first mounting grooves 402. Two springs 404 are fixedly connected to one end of the inner wall of each of the four inner first mounting grooves 402. The same first drive plate 403 is fixedly connected to one end of each of the two springs 404. The first drive plate 403 is slidably inserted into the first mounting groove 402, and the four first drive plates 403 are respectively slidably inserted into the four outer first mounting grooves 402. The grinding wheel disk 401 is made of ceramic particles as the main material.

[0025] The outer circumference of the central disk 1 and the inner circumference of the grinding wheel disk 401 are each provided with four equally spaced second mounting slots 406, and the four second mounting slots 406 are staggered with the four first mounting slots 402. Two springs 407 are fixedly connected to the inner wall of one end of each of the four inner second mounting slots 406. The two springs 407 are fixedly connected to the same second drive plate 408, and the second drive plate 408 is completely inside the second mounting slot 406.

[0026] Each of the four first drive plates 403 has an extension post 405 fixedly connected to one end of its outer wall. The outer wall of one end of the central disk 1 has four clearance slots, which are connected to the four first mounting slots 402 respectively. The four extension posts 405 pass through the four clearance slots and extend outward, enabling the first drive plates 403 to be controlled from the outside.

[0027] The four extension posts 405 are pushed toward the center of the central disk 1. The thrust is applied to the spring 404 through the first drive plate 403, which compresses and shortens the spring 404. Then, the first drive plate 403 enters the first mounting groove 402. Finally, when it disengages from the first mounting groove 402 in the grinding wheel 401, the position of the grinding wheel 401 is no longer restricted, and it can be easily removed and replaced. When the central disk 1 is driven to rotate, it can drive the grinding wheel 401 to rotate synchronously through the four first drive plates 403. As the centrifugal force increases, the tension of the second spring 407 is overcome. The second drive plate 408 moves out of the second mounting groove 406 under the action of centrifugal force and then enters the second mounting groove 406 of the grinding wheel 401, thereby achieving a reinforcement effect and increasing the stability of the grinding wheel during operation. When the grinding wheel 401 stops rotating, the second drive plate 408 will be pulled back to the second mounting groove 406 by the second spring 407, so that disassembly will not be difficult due to too many drive plates.

[0028] like Figure 1 and Figure 4 As shown, two equally spaced limiting components 5 are installed on the outside of the central disk 1. Each limiting component 5 includes a mounting post 501 fixedly connected to the outer wall of one end of the central disk 1. A limiting plate 502 is rotatably connected to the outside of the mounting post 501 via a bearing. The limiting plate 502 is in contact with the outer wall of the grinding wheel 401. A magnet 503 is fixedly connected to the outer wall of one end of the central disk 1. The limiting plate 502 is attracted to the outside of the magnet 503.

[0029] When the movable end of the limiting plate 502 is moved, the limiting plate 502 will come into contact with the grinding wheel 401 and abut against its outer wall, so that the position of the grinding wheel 401 can be restricted and will not shake at will. Then the limiting plate 502 and the magnet 503 will stick together, so that the position of the limiting plate 502 will not change at will.

[0030] like Figure 4 As shown, the corner of the limiting plate 502 near the magnet 503 is provided with a rounded corner 504, so that the limiting plate 502 will not be unable to move normally due to the height difference between the central disk 1 and the grinding wheel disk 401, and the fault tolerance rate is higher.

[0031] like Figure 2 and Figure 3 As shown, a positioning ring 6 is coaxially fixed to the outer wall of one end of the center disk 1, and the diameter of the positioning ring 6 is larger than the diameter of the center disk 1, so as to ensure that the center disk 1 can be kept at the same level as the grinding wheel disk 401, and to ensure that the installation process can be carried out smoothly.

[0032] like Figure 3 As shown, the four corners of the ends of the four first drive plates 403 and the four second drive plates 408 are all provided with bevels 409, so that the drive plates can be inserted into the mounting slots smoothly and will not fail to install or reinforce due to slight positional deviation.

[0033] This utility model provides a high-speed ceramic grinding wheel for automotive wheel hub bearing flanges, and its working principle is as follows:

[0034] When the device is working, the central disk 1 is fitted onto the outside of the external mounting shaft, so that the main mounting shaft passes through the main connecting hole 2, and several auxiliary mounting shafts pass through the auxiliary connecting holes 3. With the cooperation of several mounting shafts, the stability of the grinding wheel can be ensured to be good enough. If the grinding wheel 401 needs to be replaced, simply push the four extension posts 405 toward the center of the central disk 1. The thrust will be applied to the spring 404 through the first drive plate 403, and the spring 404 will be compressed and shortened. Then the first drive plate 403 will enter the first mounting groove 402. Finally, when it disengages from the first mounting groove 402 in the grinding wheel 401, the position of the grinding wheel 401 will no longer be restricted, and it can be easily removed and replaced. When the central disk 1 is driven to rotate, it can drive the grinding wheel 401 to rotate synchronously through the four first drive plates 403. As the centrifugal force increases, the spring 407 The pulling force is overcome, and the second drive plate 408 moves out of the second mounting groove 406 under the action of centrifugal force, and then enters the second mounting groove 406 of the grinding wheel 401, thereby achieving a reinforcement effect and increasing the stability of the grinding wheel during operation. When the grinding wheel 401 stops rotating, the second drive plate 408 will be pulled back to the second mounting groove 406 by the second spring 407, so that disassembly will not be difficult due to too many drive plates. When the grinding wheel 401 is re-fitted outside the center plate 1, the positioning ring 6 can ensure that the center plate 1 can be kept at the same level as the grinding wheel 401. Finally, the movable end of the limiting plate 502 is moved, and the limiting plate 502 will contact the grinding wheel 401 and abut against its outer wall, so that the position of the grinding wheel 401 can be restricted and will not shake randomly. Then the limiting plate 502 and the magnet 503 are attached to each other, so that the position of the limiting plate 502 will not change randomly.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-speed ceramic grinding wheel for automotive wheel hub bearing flanges, comprising a center disc (1), characterized in that: A grinding assembly (4) is installed on the outside of the central disk (1). A main connecting hole (2) is opened in the middle of the central disk (1). One or more auxiliary connecting holes (3) are opened inside the central disk (1), and one or more auxiliary connecting holes (3) are evenly distributed outside the main connecting hole (2). The grinding assembly (4) includes a grinding wheel (401) that is slidably sleeved on the outer circumference of the central disk (1). Four first mounting grooves (402) are evenly distributed on the outer circumference of the central disk (1) and the inner circumference of the grinding wheel (401). Two springs (404) are fixedly connected to one end of the inner wall of each of the four inner first mounting grooves (402). The same first driving plate (403) is fixedly connected to one end of each of the two springs (404). The first driving plate (403) is slidably inserted into the first mounting groove (402), and the four first driving plates (403) are respectively slidably inserted into the four outer first mounting grooves (402).

2. The high-speed ceramic grinding wheel for automotive wheel hub bearing flanges according to claim 1, characterized in that: The outer circumference of the central disk (1) and the inner circumference of the grinding wheel disk (401) are provided with four equally spaced second mounting slots (406), and the four second mounting slots (406) are staggered with the four first mounting slots (402). Two springs (407) are fixedly connected to one end of the inner wall of each of the four inner second mounting slots (406), and the two springs (407) are fixedly connected to the same second drive plate (408). The second drive plate (408) is completely inside the second mounting slot (406).

3. The high-speed ceramic grinding wheel for automotive wheel hub bearing flanges according to claim 1, characterized in that: Each of the four first drive plates (403) has an extension post (405) fixedly connected to one end of its outer wall. The outer wall of the center plate (1) has four clearance grooves, and the four clearance grooves are respectively connected to the four first mounting grooves (402). The four extension posts (405) pass through the four clearance grooves and extend outward.

4. The high-speed ceramic grinding wheel for automotive wheel hub bearing flanges according to claim 1, characterized in that: Two equally spaced limiting components (5) are installed on the outside of the central disk (1). Each limiting component (5) includes a mounting column (501) fixedly connected to the outer wall of one end of the central disk (1). A limiting plate (502) is rotatably connected to the outside of the mounting column (501) via a bearing. The limiting plate (502) is in contact with the outer wall of the grinding wheel (401). A magnet (503) is fixedly connected to the outer wall of one end of the central disk (1). The limiting plate (502) is attracted to the outside of the magnet (503).

5. The high-speed ceramic grinding wheel for automotive wheel hub bearing flanges according to claim 4, characterized in that: The corner of the limiting plate (502) near the magnet (503) is rounded (504).

6. The high-speed ceramic grinding wheel for automotive wheel hub bearing flanges according to claim 1, characterized in that: A positioning ring (6) is coaxially fixed to the outer wall of one end of the central disk (1), and the diameter of the positioning ring (6) is larger than the diameter of the central disk (1).

7. The high-speed ceramic grinding wheel for automotive wheel hub bearing flanges according to claim 1, characterized in that: The four corners at the ends of the four first drive boards (403) and the four second drive boards (408) are all provided with bevels (409).

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