A bearing processing inner groove lapping machine

By designing a bearing inner groove precision grinding machine with a rotating and precision grinding structure, the problem of low production efficiency caused by manual removal after bearing precision grinding was solved. This enabled continuous operation and efficient and precise precision grinding of the bearing inner wall, improving production efficiency and accuracy.

CN224295561UActive Publication Date: 2026-05-29HARBIN XIONGYAN PRECISION BEARING MANUFACTURING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HARBIN XIONGYAN PRECISION BEARING MANUFACTURING CO LTD
Filing Date
2025-07-15
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

In existing technologies, after the bearings are precision ground, they need to be manually removed and moved to the unloading position, which leads to a slowdown in production pace and a decrease in overall efficiency.

Method used

A bearing internal groove precision grinding machine was designed, comprising a rotating structure and a precision grinding structure. The bearing station is quickly switched by a first motor, and a combination of lead screw and guide rail is used to realize a continuous operation process. The machine also performs precise precision grinding by covering the inner wall of the bearing through eccentric motion.

Benefits of technology

This enables continuous and uninterrupted operation in the bearing processing, improves production efficiency, ensures the uniformity and precision of the finishing process, and reduces manual intervention.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to bearing processing technical field discloses a bearing processing inner groove lapping machine, including base, rotating structure and lapping structure, rotating structure and lapping structure are installed on the base respectively, rotating structure includes first support plate, first carousel and first motor, and first support plate fixed mounting is at the top one side of base, is provided with annular ring groove on first support plate, and first carousel is rotatably connected through sliding block, annular ring groove and first support plate, and first motor shaft and first carousel fixed connection, and one side symmetrical fixed mounting inner clamping subassembly of first carousel. The utility model discloses the rotating structure of setting, the drive of first motor, bearing station can realize the quick accurate switching, can both with the bearing of lapping completion steady transfer to the blanking position, can also synchronously move the bearing to be processed to the lapping area, to build up the continuous uninterrupted operation process, shorten the process link time, and the overall production efficiency is improved significantly.
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Description

Technical Field

[0001] This utility model relates to the field of bearing processing technology, and in particular to a bearing internal groove precision grinding machine. Background Technology

[0002] As a common and important component in mechanical equipment, the machining accuracy of bearings directly affects the stability and lifespan of the equipment. In the bearing machining process, the fine grinding of the inner groove is particularly critical. High-precision mechanical devices are needed to ensure both dimensional consistency and surface finish. The bearing inner groove fine grinding machine is a device specifically designed for precision grinding of the inner ring groove of bearings. It can effectively improve the geometric accuracy and surface quality of the workpiece, meet the requirements of high speed and low noise, and is widely used in high-end machinery manufacturing, aerospace, automotive industry and other fields.

[0003] In the existing technology, after the bearing is precision-ground, it needs to be manually removed from the precision-ground area and moved to the unloading position before the bearing to be processed is reinstalled. This interruption of the process will result in a long downtime waiting time, which will slow down the production pace and significantly reduce the overall efficiency. Utility Model Content

[0004] In view of the above-mentioned problem that after the bearing is finished, it needs to be manually removed from the finishing area and moved to the unloading position before the bearing to be processed is reinstalled, which will cause a long downtime due to the interruption of the process, resulting in a slowdown in production pace and a significant decrease in overall efficiency, this utility model is proposed.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a bearing internal groove precision grinding machine, including a base, a rotating structure and a precision grinding structure, wherein the rotating structure and the precision grinding structure are respectively installed on the base, the rotating structure includes a first support plate, a first turntable and a first motor, the first support plate is fixedly installed on one side of the top of the base, the first support plate is provided with an annular groove, the first turntable is rotatably connected to the first support plate through a slider, the annular groove and the first support plate, the motor shaft of the first motor is fixedly connected to the first turntable, and an internal clamping assembly is symmetrically fixedly installed on one side of the first turntable.

[0006] In a preferred embodiment of the bearing machining inner groove precision grinding machine of this utility model, the annular groove is disposed on the first support plate, the first turntable is disposed on one side of the first support plate, the slider is fixedly installed on the side of the first turntable near the first support plate, the slider extends into the annular groove, and the slider and the annular groove are slidably connected.

[0007] In a preferred embodiment of the bearing machining inner groove precision grinding machine of this utility model, the first motor is fixedly installed on the side of the first support plate away from the first turntable, and the motor shaft of the first motor is rotatably connected to the first support plate.

[0008] As a preferred embodiment of the bearing machining inner groove precision grinding machine of this utility model, the precision grinding structure includes a second support plate, a lead screw, a second motor, a guide rail, a third motor, and a fixing frame. The second support plate and the guide rail are respectively fixedly installed on the top of the base. The guide rail and the second support plate are arranged vertically, and there are two guide rails.

[0009] In a preferred embodiment of the bearing machining inner groove precision grinding machine of this utility model, the lead screw is rotatably mounted between the second support plates, the second motor is fixedly mounted on the outside of the second support plate, and the motor shaft of the second motor is fixedly connected to one end of the lead screw. The lead screw is threaded onto a mounting plate, and both ends of the mounting plate are slidably connected to the guide rail.

[0010] In a preferred embodiment of the bearing machining inner groove precision grinding machine of this utility model, a second turntable is rotatably mounted on the mounting plate, a third motor is fixedly mounted on the end of the mounting plate away from the second turntable, and the motor shaft of the third motor is fixedly connected to the second turntable. A fourth motor is fixedly mounted on the second turntable through a fixing frame, and a precision grinding rod is fixedly mounted on the motor shaft of the fixing frame.

[0011] The beneficial effects of this utility model are:

[0012] 1. Through the set rotation structure and the drive of the first motor, the bearing station can achieve rapid and precise switching. In this process, the finished bearing can be smoothly transferred to the unloading position, and the bearing to be processed can be moved to the finishing area at the same time, thus building a continuous and uninterrupted operation process, shortening the process connection time, significantly improving the overall production efficiency, and reducing the manual intervention links.

[0013] 2. Through the designed precision grinding structure, the combination of lead screw and guide rail can provide extremely high linear positioning accuracy, ensuring that the precision grinding rod can accurately contact the inner wall of the bearing. The eccentric motion generated by the third motor driving the second turntable can fully cover the entire circumferential surface of the bearing inner groove, which not only ensures the uniformity of precision grinding, but also improves the smoothness and precision of the bearing inner wall. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the 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. Among them:

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the first support plate of this utility model;

[0017] Figure 3 This is a schematic diagram of the rotating structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the internal clamping component of this utility model;

[0019] Figure 5 This is a schematic diagram of the precision-machined structure of this utility model;

[0020] Figure 6 This is a schematic diagram of the precision-finished structure of this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Base; 2. Rotating structure; 201. First support plate; 202. Annular groove; 203. First turntable; 204. Slider; 205. First motor; 206. Inner clamping assembly; 3. Grinding structure; 301. Second support plate; 302. Lead screw; 303. Second motor; 304. Guide rail; 305. Mounting plate; 306. Second turntable; 307. Third motor; 308. Fixing frame; 309. Fourth motor; 310. Grinding rod. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Example 1

[0024] Refer to attached figure Figure 1 - Appendix Figure 4This is the first embodiment of the present invention, providing a bearing internal groove precision grinding machine, including a base 1, a rotating structure 2, and a precision grinding structure 3. The rotating structure 2 and the precision grinding structure 3 are respectively mounted on the base 1. The rotating structure 2 includes a first support plate 201, a first turntable 203, and a first motor 205. The first support plate 201 is fixedly mounted on one side of the top of the base 1, and an annular groove 202 is provided on the first support plate 201. The first turntable 203 is disposed on one side of the first support plate 201, with the side of the first turntable 203 closest to the first support plate 201. A slider 204 is fixedly installed, extending into an annular groove 202, and the slider 204 and the annular groove 202 are slidably connected. A first motor 205 is fixedly installed on the side of the first support plate 201 away from the first turntable 203. The motor shaft of the first motor 205 passes through the first support plate 201 and is fixedly connected to the first turntable 203. The motor shaft of the first motor 205 is rotatably connected to the first support plate 201. An inner clamping assembly 206 is symmetrically fixedly installed on one side of the first turntable 203. The inner clamping assembly 206 is a prior art.

[0025] During use, the bearing is placed on the jaws of the inner clamping assembly 206, and the bearing is clamped by the jaws of the inner clamping assembly 206. The first motor 205 is started, and the motor shaft of the first motor 205 drives the first turntable 203 to rotate. The first turntable 203 drives the slider 204 to rotate in the annular groove 202, thereby causing the inner clamping assembly 206 to rotate with the first turntable 203. Example 2

[0026] Refer to attached figure Figure 1 - Appendix Figure 5 This is the second embodiment of the present invention, which differs from the first embodiment in that:

[0027] The precision structure 3 includes a second support plate 301, a lead screw 302, a second motor 303, a guide rail 304, a third motor 307, and a fixing frame 308. The second support plate 301 and the guide rail 304 are respectively fixedly installed on the top of the base 1. On one side of the rotating structure 2, the guide rail 304 and the second support plate 301 are arranged perpendicularly, and there are two guide rails 304. The lead screw 302 is rotatably installed between the second support plates 301. The second motor 303 is fixedly installed on the outside of the second support plate 301, and the motor shaft of the second motor 303 is fixedly connected to one end of the lead screw 302. A mounting plate 305 is threaded on, and both ends of the mounting plate 305 are slidably connected to the guide rail 304. A second turntable 306 is rotatably mounted on the mounting plate 305. A third motor 307 is fixedly mounted on the end of the mounting plate 305 away from the second turntable 306, and the motor shaft of the third motor 307 is fixedly connected to the second turntable 306. A fourth motor 309 is fixedly mounted on the second turntable 306 through a fixing bracket 308. A precision grinding rod 310 is fixedly mounted on the motor shaft of the fixing bracket 308. The precision grinding rod 310 is eccentrically set on the second turntable 306, and the movement trajectory of the precision grinding rod 310 is consistent with the inner ring of the bearing.

[0028] During operation, the second motor 303 is started, which drives the lead screw 302 to rotate via its motor shaft. The lead screw 302 causes the mounting plate 305 to slide on the guide rail 304, allowing the grinding rod 310 to move and contact the inner wall of the bearing. The fourth motor 309 is then started, which drives the grinding rod 310 to rotate via its motor shaft. The third motor 307 is then started, which drives the second turntable 306 to rotate via its motor shaft. The second turntable 306, through the fixing bracket 308, drives the fourth motor 309 and the grinding rod 310. As the second turntable 306 rotates, the grinding rod 310 moves in the same direction as the inner ring of the bearing, so the grinding rod 310 grinds the inner wall of the bearing. After the bearing is finished grinding, the mounting plate 305 is retracted, causing the grinding rod 310 to separate from the bearing. The first motor 205 is started, causing the first turntable 203 to rotate. The first turntable 203 drives the inner clamping assembly 206 to rotate, thereby rotating the bearing that has been ground at the top to the bottom and the bearing that has not yet been ground at the bottom to the top. Then the bearing is ground again, and then the ground bearing is removed.

[0029] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A precision grinding machine for inner grooves in bearing machining, characterized in that: The device includes a base (1), a rotating structure (2), and a fine grinding structure (3). The rotating structure (2) and the fine grinding structure (3) are respectively installed on the base (1). The rotating structure (2) includes a first support plate (201), a first turntable (203), and a first motor (205). The first support plate (201) is fixedly installed on one side of the top of the base (1). An annular groove (202) is provided on the first support plate (201). The first turntable (203) is rotatably connected to the first support plate (201) through a slider (204), the annular groove (202), and the first support plate (201). The motor shaft of the first motor (205) is fixedly connected to the first turntable (203). An inner clamping assembly (206) is symmetrically fixedly installed on one side of the first turntable (203).

2. The bearing machining inner groove precision grinding machine according to claim 1, characterized in that: The annular groove (202) is disposed on the first support plate (201), the first turntable (203) is disposed on one side of the first support plate (201), the slider (204) is fixedly installed on the side of the first turntable (203) near the first support plate (201), the slider (204) extends into the annular groove (202), and the slider (204) and the annular groove (202) are slidably connected.

3. The bearing machining inner groove precision grinding machine according to claim 2, characterized in that: The first motor (205) is fixedly installed on the side of the first support plate (201) away from the first turntable (203), and the motor shaft of the first motor (205) is rotatably connected to the first support plate (201).

4. The bearing machining inner groove precision grinding machine according to claim 1, characterized in that: The precision grinding structure (3) includes a second support plate (301), a lead screw (302), a second motor (303), a guide rail (304), a third motor (307), and a fixing frame (308). The second support plate (301) and the guide rail (304) are respectively fixedly installed on the top of the base (1). The guide rail (304) and the second support plate (301) are arranged vertically, and there are two guide rails (304).

5. The bearing machining inner groove precision grinding machine according to claim 4, characterized in that: The lead screw (302) is rotatably mounted between the second support plates (301), the second motor (303) is fixedly mounted on the outside of the second support plate (301), and the motor shaft of the second motor (303) is fixedly connected to one end of the lead screw (302). The lead screw (302) is threadedly mounted on the mounting plate (305), and both ends of the mounting plate (305) are slidably connected to the guide rail (304).

6. The bearing machining inner groove precision grinding machine according to claim 5, characterized in that: The second turntable (306) is rotatably mounted on the mounting plate (305). The third motor (307) is fixedly mounted on the end of the mounting plate (305) away from the second turntable (306). The motor shaft of the third motor (307) is fixedly connected to the second turntable (306). The second turntable (306) is fixedly mounted with a fourth motor (309) through a fixing bracket (308). A fine grinding rod (310) is fixedly mounted on the motor shaft of the fixing bracket (308).