A polishing device for deep processing of thin-wall bearing ring
By designing a grinding device with a clamping and adjusting section, the problem of inconvenient clamping and positioning of the rings was solved, achieving stable grinding of the rings and improving production efficiency and product qualification rate.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG JINTAI IND DEV
- Filing Date
- 2025-07-14
- Publication Date
- 2026-06-02
AI Technical Summary
Existing grinding equipment is difficult to adapt to thin-walled rings of different specifications, resulting in inconvenience in clamping and positioning. The rings are prone to shaking or shifting during the grinding process, affecting grinding accuracy and production efficiency.
A grinding device including a clamping part and an adjusting part was designed. The clamping part achieves quick clamping and positioning through an adjustable clamping block and sliding groove structure. The adjusting part achieves feeding and fine adjustment through an electric telescopic rod and a connecting rod to ensure the stability of the ring.
It enables rapid clamping and positioning of rings of different specifications, avoids shaking and displacement of the rings during the grinding process, improves grinding accuracy and production efficiency, and reduces the risk of ring scrap.
Smart Images

Figure CN224310300U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of grinding devices, and in particular relates to a grinding device for deep processing of thin-walled bearing rings. Background Technology
[0002] During the processing of thin-walled bearing rings, issues such as burrs, dimensional deviations, and surface roughness that do not meet requirements may arise. Furthermore, the precision of the inner and outer rings and end faces has a significant impact on the overall rotational accuracy, stability, and service life of the bearing. Grinding equipment can remove surface defects, correct dimensional errors, and improve surface finish, ensuring that the rings meet design requirements, improving bearing assembly quality, and satisfying the stringent performance requirements of high-precision fields such as aerospace and precision instruments.
[0003] However, existing grinding equipment is difficult to adapt to thin-walled rings of different specifications during use, and it is not convenient to achieve quick clamping and positioning. During the grinding process, the rings are prone to shaking or shifting, which not only affects the grinding accuracy, but may also lead to the scrapping of the rings, reducing production efficiency and product qualification rate. Utility Model Content
[0004] The purpose of this utility model is to provide a grinding device for deep processing of thin-walled bearing rings. By setting up a clamping part, it solves the problems of existing grinding devices being difficult to adapt to thin-walled rings of different specifications, not being convenient to achieve quick clamping and positioning, and the rings being prone to shaking or shifting during the grinding process. This not only affects the grinding accuracy but may also lead to the scrapping of the rings, reducing production efficiency and product qualification rate.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0006] This utility model relates to a grinding device for deep processing of thin-walled bearing rings, comprising two support plates, and further comprising: a grinding section disposed between the two support plates; a clamping section disposed above the grinding section; and an adjusting section mounted on the top of the rear support plate. The clamping section includes a support assembly disposed above the grinding section; and a clamping assembly mounted on the support assembly. The support assembly includes a support disk disposed above the two support plates, a gear ring rotatably connected to the inner wall of the support disk, a second motor fixedly connected to the rear side of the support disk, a second rotating shaft fixedly connected to the rear side of the second motor, the front side of the second rotating shaft penetrating the support disk, the second rotating shaft rotatably connected to the support disk, and a gear fixedly connected to the outer wall of the second rotating shaft, the gear meshing with the support disk. The second motor drives the gear ring to rotate within the support disk via the second rotating shaft and the gear.
[0007] Furthermore, the grinding section includes two rotating shafts rotatably connected between two support plates. The front side of the rotating shaft on the left side passes through the support plate on the front side. A motor is fixedly connected to the front side of the support plate on the front side. The output shaft of the motor is fixedly connected to the rotating shaft on the left side via a coupling. Circular rollers are fixedly connected to the outer walls of both rotating shafts. A grinding belt is sleeved on the two circular rollers. The outer surface of the circular rollers is frosted to increase the friction between the circular rollers and the inner wall of the grinding belt. The motor drives the grinding belt to rotate and grind the bearing rings.
[0008] Furthermore, the adjustment unit includes a lifting assembly mounted on top of the rear support plate; and a rotating assembly mounted on the lifting assembly; wherein the rotating assembly is connected to the support assembly.
[0009] Furthermore, the clamping assembly includes several arc-shaped grooves formed on the toothed ring, and clamping blocks are slidably connected to the inner walls of the several arc-shaped grooves. A guide is provided on the support plate. There are six clamping blocks arranged in a circumferential array around the support plate, and each clamping block is provided with an anti-slip groove for effectively clamping the bearing ring.
[0010] Furthermore, the lifting assembly includes an L-shaped support plate fixedly connected to the top of the rear support plate, an electric telescopic rod fixedly connected to the top of the L-shaped support plate, the output shaft of the electric telescopic rod passing through the L-shaped support plate, and a support frame fixedly connected to the output shaft of the electric telescopic rod; wherein, the support plate is located inside the support frame, and the electric telescopic rod is used to control the height of the bearing ring.
[0011] Furthermore, the rotating assembly includes a second sliding groove formed on the L-shaped support plate, a connecting rod rotatably connected to the inner front wall of the support frame, the connecting rod passing through the support plate and being fixedly connected to the support plate, the rear side of the connecting rod extending to the outside of the support frame, the rear side of the connecting rod passing through the second sliding groove, and the connecting rod being slidably connected to the second sliding groove; wherein, a handle is provided on the rear extension of the connecting rod.
[0012] Furthermore, the guide includes a sliding groove 1 respectively formed on a plurality of clamping blocks, and a plurality of L-shaped sliding rods are fixedly connected to the outer wall of the support plate. The sides of the plurality of L-shaped sliding rods away from the support plate pass through the plurality of sliding grooves 1 respectively, and the plurality of L-shaped sliding rods are slidably connected to the plurality of sliding grooves 1 respectively; wherein, the sliding grooves 1 and the L-shaped sliding rods are used to guide the movement of the clamping blocks.
[0013] This utility model has the following beneficial effects:
[0014] 1. By setting up a clamping part, the position of the L-shaped slide bar can be adjusted according to the size of the bearing ring, eliminating the need for frequent manual clamping changes. This enables rapid clamping and positioning of bearing rings of different specifications. Simultaneously, stable clamping prevents the bearing rings from shaking or shifting during grinding, ensuring grinding accuracy, reducing the risk of bearing ring scrap, and thus improving production efficiency and product qualification rate.
[0015] 2. By setting an adjustment section, the electric telescopic rod controls the contact between the collar and the grinding belt to achieve feeding. Slightly turning the connecting rod finely adjusts the position of the collar, which can flexibly adjust the grinding area to ensure uniform grinding of all parts of the outer wall of the collar, meet different grinding needs, improve grinding accuracy and quality, and avoid damage to the collar or incomplete grinding due to improper operation.
[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a partial cross-sectional view of the grinding part of this utility model;
[0020] Figure 3 This is a partial cross-sectional view of the clamping part of this utility model;
[0021] Figure 4 This is a partial cross-sectional view of the adjustment part of this utility model;
[0022] Figure 5 This utility model Figure 3 A magnified structural diagram of A in the diagram.
[0023] The attached diagram lists the components represented by each number as follows:
[0024] 1. Grinding section; 111. Support plate; 112. Rotating shaft one; 113. Motor one; 114. Circular roller; 115. Grinding sanding belt; 2. Clamping section; 21. Support assembly; 211. Support plate; 212. Gear ring; 213. Motor two; 214. Rotating shaft two; 215. Gear; 22. Clamping assembly; 221. Arc-shaped slide groove; 223. Clamping block; 224. Slide groove one; 225. L-shaped slide rod; 3. Adjustment section; 31. Lifting assembly; 311. L-shaped support plate; 312. Electric telescopic rod; 313. Support frame; 32. Rotating assembly; 321. Slide groove two; 322. Connecting rod. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Please see Figure 1-5 As shown, this utility model is a grinding device for deep processing of thin-walled bearing rings, including two support plates 111, and further including: a grinding part 1, which is disposed between the two support plates 111, the grinding part 1 including two rotating shafts 112 rotatably connected between the two support plates 111, the front side of the rotating shaft 112 on the left side penetrating the support plate 111 on the front side, a motor 113 fixedly connected to the front side of the support plate 111 on the front side, the output shaft of the motor 113 being fixedly connected to the rotating shaft 112 on the left side through a coupling, and a circular roller 114 fixedly connected to the outer wall of each of the two rotating shafts 112, with a grinding sand belt 115 sleeved on the two circular rollers 114; wherein, the outer surface of the circular roller 114 is frosted to increase the friction between the circular roller 114 and the inner wall of the grinding sand belt 115; a clamping part 2, which is disposed above the grinding part 1; and an adjusting part 3, which is installed on the top of the rear support plate 111.
[0027] The clamping part 2 includes a support assembly 21, which is disposed above the grinding part 1; and a clamping assembly 22, which is mounted on the support assembly 21. The support assembly 21 includes a support disk 211 disposed above two support plates 111. A gear ring 212 is rotatably connected to the inner wall of the support disk 211. A second motor 213 is fixedly connected to the rear side of the support disk 211. A second rotating shaft 214 is fixedly connected to the rear side of the second motor 213. A support plate 211 is passed through the front side, and a second rotating shaft 214 is rotatably connected to the support plate 211. A gear 215 is fixedly connected to the outer wall of the second rotating shaft 214, and the gear 215 meshes with the support plate 211. A second motor 213 drives a gear ring 212 to rotate within the support plate 211 via the second rotating shaft 214 and the gear 215. The clamping assembly 22 includes several arc-shaped grooves 221 formed on the gear ring 212, and each of the arc-shaped grooves 221 has a slidingly connected inner wall. The clamping block 223 and the support plate 211 are equipped with guide components. There are six clamping blocks 223 arranged in a circular array around the support plate 211. The guide components include sliding grooves 224 respectively opened on several clamping blocks 223. Several L-shaped sliding rods 225 are fixedly connected to the outer wall of the support plate 211. The side of the L-shaped sliding rods 225 away from the support plate 211 passes through several sliding grooves 224 respectively. The L-shaped sliding rods 225 are slidably connected to the sliding grooves 224 respectively. The sliding grooves 224 and L-shaped sliding rods 225 are used to guide the movement of the clamping blocks 223. By setting the clamping part 2, the position of the L-shaped sliding rods 225 can be adjusted according to the size of the bearing ring. There is no need to frequently change the clamp manually, which can realize the quick clamping and positioning of rings of different specifications. At the same time, the stable clamping can prevent the rings from shaking or shifting during grinding, ensuring grinding accuracy, reducing the risk of ring scrap, thereby improving production efficiency and product qualification rate.
[0028] The adjustment unit 3 includes a lifting assembly 31, which is mounted on the top of the rear support plate 111; and a rotating assembly 32, which is mounted on the lifting assembly 31. The rotating assembly 32 is connected to the support assembly 21. The lifting assembly 31 includes an L-shaped support plate 311 fixedly connected to the top of the rear support plate 111. An electric telescopic rod 312 is fixedly connected to the top of the L-shaped support plate 311. The output shaft of the electric telescopic rod 312 passes through the L-shaped support plate 311, and a support frame 313 is fixedly connected to the output shaft of the electric telescopic rod 312. The support plate 211 is located inside the support frame 313. The rotating assembly 32 includes a second groove 321 formed on the L-shaped support plate 311, and the front side of the support frame 313... A connecting rod 322 is rotatably connected to the inner wall, passing through the support plate 211 and fixedly connected to it. The rear side of the connecting rod 322 extends to the outside of the support frame 313, and passes through the second sliding groove 321, slidably connecting it to the second sliding groove 321. A handle is provided on the rear extension of the connecting rod 322. Through the adjustment part 3, the electric telescopic rod 312 controls the contact between the collar and the grinding belt 115 to achieve feeding. Slightly turning the connecting rod 322 finely adjusts the position of the collar, allowing for flexible adjustment of the grinding area. This ensures uniform grinding of all parts of the outer wall of the collar, meets different grinding needs, improves grinding accuracy and quality, and avoids damage to the collar or incomplete grinding due to improper operation.
[0029] A specific application of this embodiment is as follows: In use, first move the bearing ring to be polished above the support plate 111 and position it outside the clamping blocks 223. When clamping the bearing ring, first hold the handle on the connecting rod 322, then start the motor 213 to rotate it slowly. At this time, the rotating shaft 214 rotates accordingly, and drives the gear ring 212 to rotate through the gear 215. During this process, the clamping blocks 223 will be restricted by the arc-shaped sliding groove 221 and guided by the sliding groove 224 and the L-shaped sliding rod 225 to move away from each other. The process continues until the bearing ring is stably clamped. Once clamped, motor 113 is started. Motor 113 works in conjunction with the two rotating shafts 112 to drive the grinding belt 115 on the roller 114 to rotate. When the grinding belt 115 reaches its maximum speed, the electric telescopic rod 312 can be activated to extend it and move the bearing ring downward until the outer wall of the bearing ring contacts the grinding belt 115. Then, the connecting rod 322 is slightly turned as needed. The connecting rod 322 will drive the bearing ring to rotate slightly through the support plate 211, thus completing the fine adjustment of the grinding position.
Claims
1. A grinding device for deep machining of thin-walled bearing rings, comprising two support plates (111), characterized in that, Also includes: A grinding section (1) is disposed between two support plates (111); A clamping part (2) is disposed above the grinding part (1); Adjustment part (3), said adjustment part (3) is installed on top of the rear support plate (111); The clamping part (2) includes a support component (21), which is disposed above the grinding part (1); as well as A clamping assembly (22) is mounted on a support assembly (21); The support assembly (21) includes a support disk (211) disposed above two support plates (111). A gear ring (212) is rotatably connected to the inner wall of the support disk (211). A motor (213) is fixedly connected to the rear side of the support disk (211). A rotating shaft (214) is fixedly connected to the rear side of the motor (213). The front side of the rotating shaft (214) passes through the support disk (211). The rotating shaft (214) is rotatably connected to the support disk (211). A gear (215) is fixedly connected to the outer wall of the rotating shaft (214). The gear (215) meshes with the support disk (211). Among them, motor two (213) drives gear ring (212) to rotate in support disk (211) through shaft two (214) and gear (215).
2. The grinding device for deep machining of thin-walled bearing rings according to claim 1, characterized in that, The grinding part (1) includes two rotating shafts (112) rotatably connected between two support plates (111). The front side of the rotating shaft (112) on the left side passes through the support plate (111) on the front side. A motor (113) is fixedly connected to the front side of the support plate (111) on the front side. The output shaft of the motor (113) is fixedly connected to the rotating shaft (112) on the left side through a coupling. Circular rollers (114) are fixedly connected to the outer walls of the two rotating shafts (112). Grinding sanding belts (115) are sleeved on the two circular rollers (114). The outer surface of the circular roller (114) is frosted to increase the friction between the circular roller (114) and the inner wall of the abrasive belt (115).
3. A grinding device for deep machining of thin-walled bearing rings according to claim 2, characterized in that, The adjustment unit (3) includes a lifting assembly (31) mounted on top of the rear support plate (111); and A rotating assembly (32) is mounted on a lifting assembly (31); The rotating component (32) is connected to the supporting component (21).
4. A grinding device for deep machining of thin-walled bearing rings according to claim 3, characterized in that, The clamping assembly (22) includes a plurality of arc-shaped grooves (221) formed on the toothed ring (212), and clamping blocks (223) are slidably connected to the inner walls of the plurality of arc-shaped grooves (221). A guide is provided on the support plate (211). Among them, six clamping blocks (223) are arranged in a circular array around the support plate (211).
5. A grinding device for deep machining of thin-walled bearing rings according to claim 4, characterized in that, The lifting assembly (31) includes an L-shaped support plate (311) fixedly connected to the top of the rear support plate (111), an electric telescopic rod (312) fixedly connected to the top of the L-shaped support plate (311), the output shaft of the electric telescopic rod (312) passes through the L-shaped support plate (311), and a support frame (313) is fixedly connected to the output shaft of the electric telescopic rod (312). Among them, the support plate (211) is located inside the support frame (313).
6. A grinding device for deep machining of thin-walled bearing rings according to claim 5, characterized in that, The rotating assembly (32) includes a second sliding groove (321) opened on an L-shaped support plate (311). A connecting rod (322) is rotatably connected to the inner front wall of the support frame (313). The connecting rod (322) passes through the support plate (211). The connecting rod (322) is fixedly connected to the support plate (211). The rear side of the connecting rod (322) extends to the outside of the support frame (313). The rear side of the connecting rod (322) passes through the second sliding groove (321). The connecting rod (322) is slidably connected to the second sliding groove (321). A handle is provided on the rear extension of the connecting rod (322).
7. A grinding device for deep machining of thin-walled bearing rings according to claim 6, characterized in that, The guide includes a slide groove (224) respectively opened on a plurality of clamping blocks (223), and a plurality of L-shaped slide rods (225) are fixedly connected to the outer wall of the support plate (211). The side of the plurality of L-shaped slide rods (225) away from the support plate (211) passes through the plurality of slide grooves (224) respectively, and the plurality of L-shaped slide rods (225) are slidably connected to the plurality of slide grooves (224) respectively. Among them, the slide groove (224) and the L-shaped slide bar (225) are used to guide the movement of the clamp (223).