A non-destructive disassembly device for wave-shaped cage bearings

Abstract

This utility model discloses a non-destructive disassembly device for wave-shaped cage bearings, relating to the technical field of bearing manufacturing equipment. It includes a base and a disassembly assembly. The base has mounting holes suitable for bearings and multiple through holes for rivets on the bearing. The disassembly assembly includes a mounting plate and disassembly pins. The mounting plate is coaxially arranged above the base. Multiple disassembly pins are vertically fixed to the mounting plate, with one end corresponding to each of the through holes. This device enables non-destructive disassembly of wave-shaped cage bearings by punching and cutting the rivets, avoiding mechanical damage to the raceways, rolling elements, and cage during disassembly. It completely preserves the original state of each component, providing a reliable basis for accurate detection and analysis of quality problems after assembly.

Description

Technical Field

[0001] This utility model relates to the field of bearing manufacturing equipment technology, and more specifically to a non-destructive disassembly device for wave-shaped cage bearings. Background Technology

[0002] In the bearing manufacturing industry, after the assembly and performance testing of wave-cage bearings, if abnormalities such as vibration or noise or quality defects occur, it is usually necessary to disassemble the bearing for inspection to analyze the root cause of the problem and rework the defective product. However, for wave-cage bearings with riveted connections, existing disassembly techniques mainly rely on tools such as sharp-angled chisels to cut and destroy the cage. Although this method can achieve the purpose of disassembly, it is very easy to cause irreversible mechanical damage to the rolling elements, raceways, and cage body during the operation, resulting in the destruction of the original state of key components. This seriously affects the accuracy and effectiveness of subsequent fault analysis and makes it difficult to accurately determine the quality problem.

[0003] Therefore, in view of the existing problems, how to provide a non-destructive disassembly device for wave-shaped cage bearings, which can achieve non-destructive disassembly of wave-shaped cage bearings by punching and cutting rivets, avoids mechanical damage to raceways, rolling elements and cages during disassembly, and completely preserves the original state of each component, providing a reliable basis for accurate detection and analysis of quality problems after assembly, is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] Therefore, this utility model provides a non-destructive disassembly device for wave-shaped cage bearings, which can achieve non-destructive disassembly of wave-shaped cage bearings by punching and cutting rivets, avoiding mechanical damage to raceways, rolling elements and cages during disassembly, and completely preserving the original state of each component, providing a reliable basis for accurate detection and analysis of quality problems after assembly.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A non-destructive disassembly device for wave-shaped cage bearings includes: The base has mounting holes suitable for bearings, and also has multiple through holes adapted to rivets on the bearings. The disassembly assembly includes a mounting plate and disassembly pins. The mounting plate is coaxially arranged above the base. There are multiple disassembly pins, which are vertically fixed on the mounting plate, with one end corresponding to each of the through holes.

[0006] Through the above technical solution, this utility model provides a non-destructive disassembly device for wave-shaped cage bearings. By setting the mounting holes on the base and the rivet adapter through holes corresponding to the axial direction of the disassembly components, the device achieves point punching of the wave-shaped cage rivets, fundamentally replacing the traditional destructive disassembly method of chiseling the cage. This solves the technical problem of damaging the raceway, rolling elements and cage during the disassembly process, achieving the core effect of non-destructive disassembly.

[0007] Preferably, the above-mentioned press-fit bearing edge-rolling dust cover device further includes a positioning plate, which is located parallel to the base and the mounting plate. The positioning plate has multiple through holes corresponding to the disassembly pins. The positioning plate and the base cooperate to form a working cavity for positioning the bearing. Adding a positioning plate and forming a working cavity between the base and the mounting plate achieves precise radial positioning of the bearing, ensures accurate alignment of the disassembly pins and rivets, avoids component damage caused by punching misalignment, and improves the success rate of disassembly and operational stability.

[0008] Preferably, the above-mentioned press-fit bearing edge-rolled dust cover device further includes an elastic spacer, which is fixed to the bottom wall of the mounting plate. Adding an elastic spacer to the bottom wall of the mounting plate utilizes its elastic deformation characteristics to buffer and limit the punching stroke, ensuring that the punching force acts only on the rivet, preventing the release pin from excessively extending and damaging the cage pocket and rolling elements, thus enhancing the non-destructive protection effect.

[0009] Preferably, the above-mentioned press-fit bearing edge-rolling dust cover device further includes a spring. An installation cavity is formed within the elastic spacer along its axial direction. The spring is located within the installation cavity, and one end is fixed within the cavity. The spring, installed within the elastic spacer's installation cavity, works in conjunction with the elastic spacer to form an elastic buffer system. This achieves precise control of the punching force and automatic reset of the unsleeving pin, improving the stability and controllability of the punching process and the reliability of the device.

[0010] Preferably, the above-mentioned press-fit bearing edge-rolling dust cover device further includes two guide pillars. One end of each guide pillar is vertically fixed to the mounting plate, and the other end extends through the positioning plate to the base, where it can be inserted into the base. The two guide pillars on the mounting plate, penetrating the positioning plate and inserting into the base, provide precise guidance for the overall movement of the mounting plate 2, ensuring the coaxiality of the disassembly pin and the through hole, eliminating the risk of punching misalignment, and further improving the disassembly accuracy and device rigidity.

[0011] Preferably, in the above-mentioned press-fit bearing edge-rolling dust cover device, a connecting protrusion is fixed on the upper surface of the mounting plate to facilitate connection with a machine tool. Adding a connecting protrusion to the upper surface of the mounting plate facilitates quick connection with driving equipment such as presses, enhances the versatility and ease of operation of the device, and provides interface conditions for semi-automatic or automatic disassembly / reassembly.

[0012] As can be seen from the above technical solution, compared with the prior art, the present invention discloses a non-destructive disassembly device for wave-shaped cage bearings, which has the following beneficial effects: 1. Achieve truly non-destructive disassembly: By replacing the cutting of the cage with punched rivets, the raceway, rolling elements and cage opening are not subjected to any external force during the disassembly process, which fundamentally avoids mechanical damage and completely preserves the original state of each component.

[0013] 2. Improve the accuracy of fault analysis: After disassembly, there is no new damage to the bearing components, presenting the original state after assembly. This provides a real and reliable sample for detecting and studying quality problems such as vibration and noise, which is conducive to accurately determining the cause of defects.

[0014] 3. Precise positioning and reliable punching: The positioning plate and the base form a working cavity to achieve precise bearing positioning, and the guide post ensures that the disassembly pin and the rivet are precisely aligned, eliminating punching deviation and significantly improving the success rate of disassembly and operational stability.

[0015] 4. Controllable operation and buffer protection: The elastic spacer and spring work together to form a buffer system, which precisely controls the punching stroke and ensures that the impact force is only applied to the rivet, preventing excessive punching damage to the cage body and achieving a smooth and controllable process. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0017] Figure 1 The attached figure is a structural cross-sectional view of a non-destructive disassembly device for a wave-shaped cage bearing provided by this utility model.

[0018] in: 1-Base; 11-Through hole; 2-Mounting plate; 3-Removal pin; 4-Positioning plate; 5-Elastic spacer; 6-Spring; 7-Guide post; 8-Connecting protrusion. Detailed Implementation

[0019] 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.

[0020] Example: See appendix Figure 1 This utility model discloses a non-destructive disassembly device for a wave-shaped cage bearing, comprising: a base 1 and a disassembly assembly; The base 1 has mounting holes suitable for bearings, and the base 1 also has multiple through holes 11 for fitting rivets on the bearings; The sleeve removal assembly includes a mounting plate 2 and sleeve removal pins 3. The mounting plate 2 is coaxially arranged above the base 1. There are multiple sleeve removal pins 3, which are vertically fixed on the mounting plate 2, and one end of each pin corresponds to a through hole 11.

[0021] To further optimize the above technical solution, a positioning plate 4 is also included. The positioning plate 4 is located parallel between the base 1 and the mounting plate 2. The positioning plate 4 has multiple through holes 41 corresponding to the disassembly pins 3. The positioning plate 4 and the base 1 cooperate to form a working cavity for positioning the bearing.

[0022] To further optimize the above technical solution, an elastic spacer 5 is also included, which is fixed to the bottom wall of the mounting plate 2.

[0023] To further optimize the above technical solution, a spring 6 is also included. An installation cavity is provided inside the elastic spacer 5 along its axial direction. The spring 6 is located in the installation cavity, and one end is fixed inside the installation cavity.

[0024] To further optimize the above technical solution, guide posts 7 are also included. There are two guide posts 7. One end of each guide post 7 is vertically fixed on the mounting plate 2, and the other end can extend through the positioning plate 4 to the base 1 and can be inserted into the base 1.

[0025] To further optimize the above technical solution, a connecting protrusion 8 is fixed on the upper wall of the mounting plate 2 to facilitate connection with the machine tool.

[0026] The method of use and working principle of this utility model are as follows: How to use: Place the wave-shaped cage bearing to be disassembled smoothly into the mounting hole 11 of the base 1, ensuring that the rivet heads of the bearing are embedded one-to-one into the through holes 12 on the base 1. At this point, only the rivet portion of the bearing and its surrounding surface are in contact with the base, while the rolling elements and raceways are suspended and unloaded. Align the mounting plate 2 with the base 1 via the guide post 7, ensuring that the disassembly pin 3, the through hole on the positioning plate 4, the through hole 12 on the base 1, and the bearing rivets are coaxial. Then, fix the mounting plate 2 to the output end of the press using the connecting protrusion 8 on the upper wall of the mounting plate 2. Start the press to apply downward pressure to the mounting plate 2. Under the precise guidance of the guide post 7, the mounting plate 2 descends vertically as a whole. The elastic spacer 5 first contacts the upper surface of the bearing and generates initial elastic compression. With continuous pressure, the elastic spacer 5 and the spring 6 inside it undergo elastic deformation simultaneously, the distance between the mounting plate 2 and the positioning plate 4 shortens, the release pin 3 extends out relative to each other and acts precisely on the center of the rivet, knocking the rivet off the cage. The rivet fragments are automatically discharged through the through hole 12 of the base. After the pressure is released, the elastic spacer 5 and the spring 6 return to their original positions, the mounting plate 2 moves upward, and at this time the upper and lower cages have lost the rivet constraint and naturally separate. The bearing components can then be removed to complete the non-destructive disassembly.

[0027] Working Principle: This device achieves non-destructive disassembly based on the principle of fixed-point punching and overall isolation. The base 1 uses a partial support method, supporting only the rivet area, keeping the rolling elements and raceways of the bearing in a non-contact, suspended state, thus avoiding stress during disassembly. The elastic spacer 5 and spring 6 in the mounting plate 2 form a floating buffer system, controlling the extension length of the disassembly pin through elastic deformation during the punching stroke, ensuring that the punching force is only transmitted to the rivet, while the cage body, rolling elements, and raceways are not subjected to any external force because they are outside the force transmission path. The precision guiding and positioning structure formed by the guide post 7 and the positioning plate 4 ensures high-precision alignment between the disassembly pin 3 and the rivet, preventing secondary damage caused by punching misalignment. By punching the rivet instead of destroying the cage, zero damage to the raceways, rolling elements, and cage openings is achieved during bearing disassembly, completely preserving their original assembly state.

[0028] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0029] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A non-destructive disassembly device for wave-shaped cage bearings, characterized in that, include: The base (1) has mounting holes suitable for bearings and multiple through holes (11) adapted to rivets on the bearings. The disassembly assembly includes a mounting plate (2) and disassembly pins (3). The mounting plate (2) is coaxially arranged above the base (1). There are multiple disassembly pins (3), which are vertically fixed on the mounting plate (2) and one end of each pin corresponds to each of the through holes (11).

2. The non-destructive disassembly device for a wave-shaped cage bearing according to claim 1, characterized in that, It also includes a positioning plate (4), which is located parallel between the base (1) and the mounting plate (2). The positioning plate (4) has multiple through holes (41) corresponding to the disassembly pin (3). The positioning plate (4) and the base (1) cooperate to form a working cavity for positioning the bearing.

3. The non-destructive disassembly device for a wave-shaped cage bearing according to claim 2, characterized in that, It also includes an elastic spacer (5), which is fixed to the bottom wall of the mounting plate (2).

4. The non-destructive disassembly device for a wave-shaped cage bearing according to claim 3, characterized in that, It also includes a spring (6), and the elastic spacer (5) has an installation cavity along its axial direction. The spring (6) is located in the installation cavity and one end is fixed in the installation cavity.

5. The non-destructive disassembly device for a wave-shaped cage bearing according to claim 4, characterized in that, It also includes guide posts (7), there are two guide posts (7), one end of the two guide posts (7) is vertically fixed on the mounting plate (2), and the other end can extend through the positioning plate (4) to the base (1) and can be inserted into the base (1).

6. The non-destructive disassembly device for a wave-shaped cage bearing according to claim 1, characterized in that, The mounting plate (2) has a connecting protrusion (8) fixed on its upper wall surface to facilitate connection with the machine tool.

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