Bearing cage inner side surface processing device

By designing a bearing cage inner surface machining device that combines X-axis, Y-axis, and Z-axis electric slide rails with sliders, the problems of precise machining and specification change difficulties in the existing technology have been solved, and efficient and stable machining of the bearing cage inner surface has been achieved.

CN224560790UActive Publication Date: 2026-07-28TAIZHOU GAOGANG LIGHT IND PARTS FACTORY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TAIZHOU GAOGANG LIGHT IND PARTS FACTORY
Filing Date
2025-09-01
Publication Date
2026-07-28

AI Technical Summary

Technical Problem

Existing bearing cage inner surface machining equipment is difficult to achieve precise machining, and when changing to different specifications of cages, it is necessary to change the fixtures and adjust the parameters, which increases production preparation time and cost.

Method used

A bearing cage inner side machining device was designed, comprising an outer base, an inner base, an arc-shaped electric track, and an adjustable machining structure. Utilizing a combination of X, Y, and Z-axis electric slide rails and sliders, along with the arc-shaped electric track, a stepper motor drives precise three-dimensional movement and positioning. It is also equipped with a detachable grinding head and a hydraulic clamping device to ensure machining accuracy and efficiency.

Benefits of technology

This technology enables high-precision machining of the inner side of the bearing cage, reducing adjustment time, improving machining efficiency, protecting the workpiece, reducing maintenance costs, and ensuring the stability and reliability of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a machining device for the inner side of a bearing cage. The device consists of an outer base and an inner base, with a cavity for placing the bearing cage between them. An arc-shaped electric track on the top of the inner base, combined with an arc-shaped electric slider, supports an adjustable machining structure. This structure includes a multi-directional electric slide rail and slider, driven by a stepper motor, enabling precise positioning of the grinding mechanism in three-dimensional space. The grinding mechanism uses a detachable grinding head for easy replacement according to processing needs. A hydraulic clamping device on the inner side of the outer base securely fixes the bearing cage, and an elastic buffer layer on the side of the inner limiting base protects the bearing cage from damage during placement. This device significantly improves machining accuracy and efficiency, possesses good versatility and stability, and effectively solves many problems existing in traditional machining devices.
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Description

Technical Field

[0001] This utility model relates to the field of bearing processing technology, specifically to a device for processing the inner side of a bearing cage. Background Technology

[0002] In the bearing manufacturing process, the cage is a key component. Its main function is to evenly separate the rolling elements of the bearing, preventing them from rubbing against each other, thereby improving the bearing's service life and performance. The machining accuracy of the inner surface of the bearing cage has a significant impact on the overall performance of the bearing.

[0003] Currently, existing bearing cage inner surface machining devices generally have some problems: traditional machining equipment is difficult to achieve precise machining when faced with complex-shaped cage inner surfaces, resulting in the dimensional accuracy and surface quality of the cage inner surfaces not meeting the standards, thus affecting the overall performance of the bearing; machining bearing cages of different specifications often requires changing different fixtures and adjusting machining parameters, which increases production preparation time and cost.

[0004] Therefore, it is necessary to design a bearing cage inner surface machining device to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this invention is to provide a bearing cage inner surface processing device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A bearing cage inner side processing device includes an outer seat and an inner seat. An inner limiting seat is provided inside the outer seat. A cavity for placing the bearing cage is provided between the outer seat and the inner limiting seat. An arc-shaped electric track is provided on the top of the inner seat. An adjustable processing structure is installed on the arc-shaped electric track via an arc-shaped electric slider.

[0008] The adjustable processing structure includes a support base fixedly installed on the top of the arc-shaped electric slider. A horizontally arranged X-axis electric slide rail is fixedly installed on the top of the support base. An X-axis electric slider that can move laterally is installed on the X-axis electric slide rail. A Z-axis electric slide rail is also fixedly installed on the X-axis electric slider. A Z-axis electric slider that can move up and down is connected to the Z-axis electric slide rail. A Y-axis electric slide rail is also fixedly installed on the Z-axis electric slider. A Y-axis electric slider is also connected to the Y-axis electric slide rail. A grinding mechanism is also fixedly installed on the Y-axis electric slider through a device mounting bracket.

[0009] As a preferred embodiment of this utility model, the X-axis electric slide rail and the X-axis electric slider are slidably connected, the Z-axis electric slide rail and the Z-axis electric slider are slidably connected, and the Y-axis electric slide rail and the Y-axis electric slider are also slidably connected, and all are driven by stepper motors.

[0010] As a preferred embodiment of this utility model, the grinding mechanism includes a grinding motor and a grinding head detachably mounted on the output shaft of the grinding motor. The grinding head performs grinding processing on the inner side of the bearing cage under the drive of the grinding motor.

[0011] As a preferred embodiment of this utility model, a plurality of hydraulic clamping devices are also fixedly installed around the inner side of the outer seat, and the hydraulic clamping devices are used to clamp and fix the outer wall of the bearing cage placed inside the cavity.

[0012] As a preferred embodiment of this utility model, an elastic buffer layer is provided on the side of the inner limiting seat. The elastic buffer layer is made of rubber and is used to provide cushioning when placing the bearing cage to avoid rigid collision damage between the bearing cage and the inner limiting seat.

[0013] As a preferred embodiment of this utility model, the support base and the arc-shaped electric slider are fixedly connected by multiple high-strength bolts, the X-axis electric slide rail and the top of the support base are fixedly connected by multiple high-strength bolts, the Y-axis electric slide rail and the outer side of the Z-axis electric slider are fixedly connected by multiple high-strength bolts, and the Z-axis electric slide rail and the X-axis electric slider are fixedly connected by multiple high-strength bolts to ensure the stability of the connection.

[0014] As a preferred embodiment of this utility model, the surfaces of the X-axis electric slide rail, Z-axis electric slide rail, and Y-axis electric slide rail are all provided with lubrication grooves.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This utility model, through the provision of a bearing cage inner surface processing device, achieves the following effects: 1. This processing device, through the combination of electric slide rails and sliders in the X, Y, and Z directions, and in conjunction with an arc-shaped electric track, enables precise movement and positioning of the grinding mechanism in three-dimensional space and on an arc-shaped trajectory, thereby performing high-precision processing on the inner surface of the bearing cage. Simultaneously, the sliders on each slide rail, driven by stepper motors, ensure smooth and accurate movement, further improving processing precision; 2. The adjustable processing structure allows for rapid adjustment of the position and angle of the grinding mechanism, significantly reducing adjustment time during processing. Furthermore, the detachable grinding head in the grinding mechanism allows for quick replacement according to different processing needs, effectively improving processing efficiency; 3. Multiple hydraulic clamping devices fixedly installed around the inner side of the outer seat can clamp and fix the outer wall of the bearing cage placed inside the cavity, ensuring the stability of the bearing cage during processing and improving processing accuracy and quality; 4. The rubber elastic buffer layer set on the side of the inner limit seat can provide cushioning when placing the bearing cage, avoiding rigid collision between the bearing cage and the inner limit seat and thus protecting the workpiece; 5. The bearing seat and the arc-shaped electric slider, as well as each electric slide rail and its corresponding slider or mounting component, are fixedly connected by multiple high-strength bolts, ensuring the stability of the entire processing device connection and guaranteeing the stability and reliability of equipment operation; 6. The surfaces of the X-axis electric slide rail, Z-axis electric slide rail, and Y-axis electric slide rail are provided with lubrication grooves. By periodically injecting lubricating oil, the frictional resistance of the electric slider when sliding on the rail can be effectively reduced, which not only improves the operating accuracy of the device but also extends the service life of the equipment and reduces maintenance costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0018] Figure 2 This is a three-dimensional structural diagram of the inner seat of this utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of the Y-axis electric slide rail and grinding mechanism of this utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the bearing base, the X-axis electric slide rail, and the Z-axis electric slide rail of this utility model;

[0021] Figure 5 This is a top view of the inner seat, the arc-shaped electric track, the inner limiting seat, and the outer seat of this utility model.

[0022] In the diagram: 1. Outer seat; 2. Inner seat; 3. Inner limit seat; 4. Arc-shaped electric track; 5. Arc-shaped electric slider; 6. Adjustable machining structure; 61. Bearing seat; 62. X-axis electric slide rail; 63. X-axis electric slider; 64. Z-axis electric slide rail; 65. Z-axis electric slider; 66. Y-axis electric slide rail; 67. Y-axis electric slider; 68. Device mounting bracket; 69. Stepper motor; 7. Bearing cage; 71. Cavity; 8. Grinding head; 9. Hydraulic clamping device; 10. Grinding motor. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] To facilitate understanding of this utility model, a more comprehensive description will be given below with reference to the accompanying drawings. Several embodiments of this utility model are provided. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this utility model will be more thorough and complete.

[0025] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] For examples, please refer to Figure 1-5 This utility model provides a technical solution:

[0028] A bearing cage inner side processing device includes an outer seat 1 and an inner seat 2. An inner limiting seat 3 is provided inside the outer seat 1. A cavity 71 for placing the bearing cage 7 is provided between the outer seat 1 and the inner limiting seat 3. An arc-shaped electric track 4 is provided on the top of the inner seat 2. An adjustable processing structure 6 is installed on the arc-shaped electric track 4 via an arc-shaped electric slider 5. When the bearing cage 7 is placed in the cavity 71 between the outer seat 1 and the inner limiting seat 3, the device is turned on, and the arc-shaped electric slider 5 moves along the arc-shaped electric track 4, driving the adjustable processing structure 6 to reach a predetermined starting position.

[0029] Specifically, the adjustable processing structure 6 includes a support base 61 fixedly installed on the top of the arc-shaped electric slider 5. A horizontally arranged X-axis electric slide rail 62 is fixedly installed on the top of the support base 61. An X-axis electric slider 63, which can move laterally, is installed on the X-axis electric slide rail 62. A Z-axis electric slide rail 64 is also fixedly installed on the X-axis electric slider 63. A Z-axis electric slider 65, which can move up and down, is connected to the Z-axis electric slide rail 64. A Y-axis electric slide rail 66 is also fixedly installed on the Z-axis electric slider 65. A Y-axis electric slider 67 is connected to the Y-axis electric slide rail 66. A grinding mechanism is also fixedly installed on the Y-axis electric slider 67 via a device mounting bracket 68. The X-axis electric slide rail 62 and the X-axis electric slider 63 are slidably connected, as are the Z-axis electric slide rail 64 and the Z-axis electric slider 65, and the Y-axis electric slide rail 66 and the Y-axis electric slider 67. All are driven by stepper motor 69; the grinding mechanism includes grinding motor 10 and grinding head 8 detachably mounted on the output shaft of grinding motor 10. The grinding head 8 is driven by grinding motor 10 to grind the inner side of bearing cage; driven by stepper motor 69, X-axis electric slider 63 moves laterally on X-axis electric slide rail 62, Z-axis electric slider 65 moves up and down on Z-axis electric slide rail 64, and Y-axis electric slider 67 moves on Y-axis electric slide rail 66, thereby driving the grinding mechanism to reach the precise processing position, so as to realize the precise movement and positioning of the grinding mechanism in three-dimensional space, and can precisely process different positions on the inner side of bearing cage 7, improving processing accuracy. Then, a suitable grinding head 8 is selected and detachably mounted on the output shaft of grinding motor 10. Grinding motor 10 is started to drive grinding head 8 to grind the inner side of bearing cage 7.

[0030] Specifically, multiple hydraulic clamping devices 9 are also fixedly installed around the inner side of the outer seat 1. The hydraulic clamping devices 9 are used to clamp and fix the outer wall of the bearing cage 7 placed inside the cavity 71. After the bearing cage 7 is placed into the cavity 71, the hydraulic clamping devices 9 are activated to clamp the outer wall of the bearing cage 7, ensuring that the bearing cage 7 does not shift during processing. After processing is completed, the hydraulic clamping devices 9 are released and the bearing cage 7 is removed.

[0031] Specifically, the inner limit seat 3 has an elastic buffer layer on its side. This elastic buffer layer is made of rubber and is used to provide cushioning when the bearing cage 7 is placed, so as to avoid the bearing cage 7 being damaged by rigid collision with the inner limit seat 3. When the bearing cage 7 is placed into the cavity 71, the bearing cage 7 first contacts the elastic buffer layer on the side of the inner limit seat 3. The elastic buffer layer cushions it, so as to avoid the bearing cage 7 being damaged by rigid collision with the inner limit seat 3 when it is placed, and protect the integrity of the bearing cage 7.

[0032] Specifically, the support base 61 and the arc-shaped electric slider 5 are fixedly connected by multiple high-strength bolts; the X-axis electric slide rail 62 and the top of the support base 61 are fixedly connected by multiple high-strength bolts; the Y-axis electric slide rail 66 and the outer side of the Z-axis electric slider 65 are fixedly connected by multiple high-strength bolts; and the Z-axis electric slide rail 64 and the X-axis electric slider 63 are fixedly connected by multiple high-strength bolts to ensure the stability of the connection. During equipment assembly, multiple high-strength bolts are used to fix the support base 61 to the arc-shaped electric slider 5, the X-axis electric slide rail 62 to the support base 61, the Y-axis electric slide rail 66 to the Z-axis electric slider 65, and the Z-axis electric slide rail 64 to the X-axis electric slider 63, respectively, thereby ensuring that the connection of each component is stable, can withstand the processing force during processing, ensure the stability and reliability of the equipment operation, and prevent the processing accuracy from being affected by loose connections.

[0033] Specifically, the surfaces of the X-axis electric slide rail 62, Z-axis electric slide rail 64, and Y-axis electric slide rail 66 are all provided with lubrication grooves. Lubricating oil is injected into the lubrication grooves on the surfaces of the X-axis electric slide rail 62, Z-axis electric slide rail 64, and Y-axis electric slide rail 66 through a lubrication device, thereby effectively reducing the frictional resistance of the electric slider when sliding on the track, improving the operating accuracy of the device, extending the service life of the equipment, and reducing maintenance costs.

[0034] The working process of this utility model is as follows: When using the bearing cage inner side processing device, firstly, select a suitable grinding head 8 and detachably install it on the output shaft of the grinding motor 10. Place the bearing cage 7 in the cavity 71 between the outer seat 1 and the inner limiting seat 3. The elastic buffer layer on the side of the inner limiting seat 3 acts as a buffer during the placement process, preventing the bearing cage from being damaged by rigid collision with the inner limiting seat. Activate the multiple hydraulic clamping devices 9 fixedly installed around the inner side of the outer seat 1 to clamp and fix the outer wall of the bearing cage 7 placed inside the cavity 71, ensuring that the bearing cage does not shift during processing. Turn on the equipment, and the arc-shaped electric slider 5 moves along the arc-shaped electric track 4, driving the adjustable processing structure 6 to reach the predetermined starting point. Position; Based on the machining position and requirements of the inner side of the bearing cage, the X-axis electric slider 63 moves laterally on the X-axis electric slide rail 62, the Z-axis electric slider 65 moves up and down on the Z-axis electric slide rail 64, and the Y-axis electric slider 67 moves on the Y-axis electric slide rail 66, thereby driving the grinding mechanism to reach the precise machining position; the grinding motor 10 is started to drive the grinding head 8 to grind the inner side of the bearing cage. During the process, lubricating oil is injected into the lubrication grooves on the surfaces of the X-axis electric slide rail 62, Z-axis electric slide rail 64, and Y-axis electric slide rail 66 through the lubrication device as needed to reduce frictional resistance and ensure normal operation of the equipment. After the machining is completed, the hydraulic clamping device 9 is released and the machined bearing cage 7 is taken out.

[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 bearing cage inner surface machining device, comprising an outer housing (1) and an inner housing (2), characterized in that: The outer seat (1) is provided with an inner limiting seat (3) inside. A cavity (71) for placing a bearing retainer (7) is provided between the outer seat (1) and the inner limiting seat (3). An arc-shaped electric track (4) is provided on the top of the inner seat (2). An adjustable processing structure (6) is installed on the arc-shaped electric track (4) through an arc-shaped electric slider (5). The adjustable processing structure (6) includes a support base (61) fixedly installed on the top of the arc-shaped electric slider (5). A horizontally arranged X-axis electric slide rail (62) is fixedly installed on the top of the support base (61). An X-axis electric slider (63) that can move laterally is installed on the X-axis electric slide rail (62). A Z-axis electric slide rail (64) is also fixedly installed on the X-axis electric slider (63). A Z-axis electric slider (65) that can move up and down is connected to the Z-axis electric slide rail (64). A Y-axis electric slide rail (66) is also fixedly installed on the Z-axis electric slider (65). A Y-axis electric slider (67) is also connected to the Y-axis electric slide rail (66). A grinding mechanism is also fixedly installed on the Y-axis electric slider (67) through a device mounting bracket (68).

2. The bearing cage inner surface machining device according to claim 1, characterized in that: The X-axis electric slide rail (62) and the X-axis electric slider (63) are slidably connected, the Z-axis electric slide rail (64) and the Z-axis electric slider (65) are slidably connected, and the Y-axis electric slide rail (66) and the Y-axis electric slider (67) are also slidably connected, and all are driven by a stepper motor (69).

3. The bearing cage inner surface machining device according to claim 1, characterized in that: The grinding mechanism includes a grinding motor (10) and a grinding head (8) detachably mounted on the output shaft of the grinding motor (10). The grinding head (8) performs grinding on the inner side of the bearing cage under the drive of the grinding motor (10).

4. The bearing cage inner surface machining device according to claim 1, characterized in that: The inner side of the outer seat (1) is also surrounded and fixedly installed with multiple hydraulic clamping devices (9), which are used to clamp and fix the outer wall of the bearing cage (7) placed inside the cavity (71).

5. The bearing cage inner surface machining device according to claim 1, characterized in that: The inner limiting seat (3) is provided with an elastic buffer layer on its side. The elastic buffer layer is made of rubber and is used to provide cushioning when the bearing cage (7) is placed, so as to avoid the bearing cage (7) from being damaged by rigid collision with the inner limiting seat (3).

6. The bearing cage inner surface machining device according to claim 1, characterized in that: The support base (61) and the arc-shaped electric slider (5) are fixedly connected by multiple high-strength bolts. The X-axis electric slide rail (62) and the upper part of the support base (61) are fixedly connected by multiple high-strength bolts. The Y-axis electric slide rail (66) and the outer side of the Z-axis electric slider (65) are fixedly connected by multiple high-strength bolts. The Z-axis electric slide rail (64) and the X-axis electric slider (63) are fixedly connected by multiple high-strength bolts to ensure the stability of the connection.

7. The bearing cage inner surface machining device according to claim 1, characterized in that: The surfaces of the X-axis electric slide rail (62), Z-axis electric slide rail (64) and Y-axis electric slide rail (66) are all provided with lubrication grooves.