Thin-wall bearing ring end face defect detection device

Abstract

The thin-wall bearing ring end face defect detection device comprises a double-face detection machine body, a servo motor is arranged at the top of the double-face detection machine body, a contact face detection disc connected with the servo motor in a transmission mode is arranged on the inner wall of the double-face detection machine body, and multiple sets of movable adjusting columns are arranged at the bottom of the contact face detection disc in a penetrating mode; the pressurizing spray valve guides inclined airflow to continuously and pneumatically clean the thin-wall bearing sleeve passing through a rotating brush carrier area, so that residual impurities can be effectively removed and prevented from being retained on the end face of the bearing sleeve, and meanwhile, the impurities generated after cleaning of the rotating brush carrier are prevented from flying to a detection area due to inertia; in this way, a clean environment is created for subsequent detection links, the detection precision is greatly improved, interference of impurities on detection results is reduced, the accuracy and reliability of detection work of the thin-wall bearing sleeve are guaranteed, and product quality control is assisted.

Description

Technical Field

[0001] The invention relates to the technical field of bearing detection, and in particular to a device for detecting end surface defects of a thin-walled bearing ring. Background Art

[0002] In modern industrial production, thin-walled bearings are widely used in many fields such as aerospace, automobile manufacturing, precision machinery, etc. The performance and quality of thin-walled bearings directly affect the operating stability, accuracy and service life of related equipment. As one of the key components of thin-walled bearings, the end face quality of the ring is very important. If there are defects such as cracks, scratches, pores, wear and tear on the end face of the ring, it will cause abnormal vibration and noise in the operation of the bearing, reduce the bearing's load-bearing capacity and rotation accuracy, and even cause equipment failure in severe cases, resulting in huge economic losses and safety hazards.

[0003] For newly manufactured or repaired gearboxes, there are certain micro-roughness and processing errors on the surfaces of gear tooth surfaces, bearings and other components. In the initial operation stage, these uneven surfaces will lead to excessive local contact stress, which can easily cause failure forms such as wear, fatigue and even bonding. Through the running-in test, the tooth surfaces can be ground against each other, gradually forming a good contact surface, reducing the contact stress peak, and improving the reliability and service life of the gearbox.

[0004] In combination with the above content, it should be explained that: Chinese patent application number CN2025100297336 discloses a bearing surface defect detection system and its detection method, which are mainly suitable for bearings of different widths, and the support part only contacts the two ends of the circumferential side of the bearing, so as to avoid the conventional support part from scraping off the magnetic powder on the bearing surface due to too many contact points, thereby improving the accuracy of bearing surface defect detection. However, in fact, the fixture used for external contact of the bearing is usually a rubber anti-slip structure, and more importantly, whether the subtle defects of the bearing end face can be accurately detected, and a solution is proposed for this purpose. Summary of the invention

[0005] The purpose of the present invention is to provide a thin-walled bearing ring end face defect detection device to solve the proposed problem.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a thin-walled bearing ring end face defect detection device, comprising a double-sided detection body, a servo motor is arranged on the top of the double-sided detection body, a contact surface detection disk connected to the servo motor for transmission is arranged on the inner wall of the double-sided detection body, a plurality of groups of movable adjustment columns are arranged through the bottom of the contact surface detection disk, an inner rotating disk sleeved with the movable adjustment column is arranged inside the contact surface detection disk, and a feedback limit disk is arranged above the inner rotating disk;

[0007] The inner walls on both sides of the double-sided detection body are sleeved with conveying beams, the outer wall at one end of the double-sided detection body is provided with a trumpet-shaped pneumatic cleaning frame, and the outer wall at one end of the conveying beam is sleeved with a rotating brush frame close to the pneumatic cleaning frame.

[0008] Furthermore, a sub-body with the same structure is arranged at the bottom of the double-sided detection body, and a rectangular groove for accommodating the contact surface detection disk is recessed on the inner wall of the top of the double-sided detection body.

[0009] Furthermore, the output end of the servo motor is provided with a telescopic connecting rod inserted into the double-sided detection body, the outside of the telescopic connecting rod is provided with a telescopic cylinder member sleeved on the top of the double-sided detection body, and the bottom of the telescopic connecting rod is provided with a shaft member sleeved on the bottom of the telescopic cylinder member.

[0010] Furthermore, a plurality of pressure sensors facing the movable adjustment column are arranged at the bottom of the feedback limit disk, a reinforcing rib engaged with the inner wall of the touch surface detection disk is arranged at the top of the feedback limit disk, the inner rotating disk is sleeved between the feedback limit disk and the touch surface detection disk, and a connecting column passing through the feedback limit disk is arranged at the top of the inner rotating disk.

[0011] Furthermore, a plurality of groups of extension brackets are arranged on the outer periphery of the inner rotating disk, and holes which are sleeved with movable adjusting columns are arranged on the surfaces of the extension brackets, and the holes on the plurality of groups of extension brackets are arranged in a staggered manner in sequence, a micro-touch ball is sleeved on the bottom of the movable adjusting column, a top block is arranged on the top of the movable adjusting column, and a sliding cylinder which is slidably sleeved with the outer wall of the top of the movable adjusting column is arranged below the top block, and compression spring parts are arranged on the top and bottom of the sliding cylinder.

[0012] Furthermore, the conveying beam frame is composed of two symmetrical metal guide rails, and an anti-slip groove is recessed on the inner wall of the conveying beam frame, an adjustment bracket is slidably sleeved inside the anti-slip groove, an adapter clamp is slidably provided on the top of the adjustment bracket, an electric push rod connected to the adapter clamp is embedded on the top of the adjustment bracket, and a rubber groove that adapts to the outer peripheral arc surface of the bearing is recessed on the surface of the adapter clamp.

[0013] Furthermore, the pneumatic cleaning frame is composed of two upper and lower frames, a plurality of booster spray valves facing the rotating brush frame are arranged on the inner wall of the pneumatic cleaning frame, and an air pump connected to the booster spray valve pipeline is arranged on the side of the pneumatic cleaning frame.

[0014] Furthermore, a downward-pressing cylinder member is sleeved through the top of the rotating brush holder, a rotating brush disc sleeved with the downward-pressing cylinder member is arranged on the inner wall of the bottom of the rotating brush holder, a rotating motor transmission-connected with the rotating brush disc is arranged on the outer wall of the bottom of the downward-pressing cylinder member, and a detachable cleaning brush is arranged on the bottom surface of the rotating brush disc.

[0015] The beneficial effects of the present invention are:

[0016] 1. The present invention drives the brush disc to rotate through a rotating motor to forcefully remove residual impurities in the process of transportation and production. The downward pressure cylinder can adjust the spacing between multiple groups of brush discs according to the bearing sleeve model to achieve accurate and efficient synchronous brushing, which not only saves resources but also cooperates with the previous and next processes to improve the overall production rhythm. The booster spray valve guides the airflow to blow obliquely toward the rotating brush holder area, and continuously pneumatically cleans the thin-walled bearing sleeve passing through, effectively removing residual impurities, preventing them from being retained on the end surface of the bearing sleeve and the impurities cleaned by the rotating brush holder from flying to the detection area due to inertia, creating a clean detection environment and improving detection accuracy.

[0017] 2. The present invention forms two detection implementation schemes by cooperating a double-sided detection body and a touch surface detection disk. The touch surface detection disk is reset by controlling the telescopic cylinder, the top block is kept disconnected from the pressure sensor and has a controllable micro pitch, and the servo motor drives the detection disk to rotate. According to whether the top block and the pressure sensor generate a pressure difference when the micro-touch ball rolls, it is accurately judged whether there is a convex defect on the end face of the bearing sleeve, and product quality problems are warned in advance, which reduces the entry of defective products into subsequent processes and reduces production costs, thus forming a warning loss prevention detection;

[0018] The telescopic cylinder further drives the contact surface detection plate to slide down, so that the micro-touch ball contacts the end face of the bearing sleeve. The servo motor drives the detection plate to rotate through a specific transmission line to fully detect the end face of the bearing sleeve. When there is a concave area on the surface, the micro-touch ball rolls abnormally, the movable adjustment column fluctuates, and the contact pressure between the top block and the pressure sensor changes, so as to accurately detect abnormalities such as end face concave, ensure the comprehensiveness and accuracy of product quality detection, and constitute a comprehensive pressure detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a three-dimensional diagram of the overall structure of the present invention;

[0021] Figure 2 It is a structural schematic diagram of the double-sided detection body of the present invention;

[0022] Figure 3 It is a schematic diagram of the internal structure of the double-sided detection body of the present invention when viewed from above;

[0023] Figure 4 It is a structural schematic diagram of the touch surface detection disk of the present invention;

[0024] Figure 5It is a schematic diagram of the structure of the inner rotating disk of the present invention;

[0025] Figure 6 It is a structural schematic diagram of the movable adjustment column of the present invention;

[0026] Figure 7 It is a structural schematic diagram of the servo motor of the present invention;

[0027] Figure 8 It is a schematic diagram of the structure of the conveying beam frame and the pneumatic cleaning frame of the present invention;

[0028] Fig. 9 It is a structural schematic diagram of the rotating brush holder of the present invention.

[0029] Figure numerals: 1. Double-sided detection body; 101. Auxiliary body; 2. Pneumatic cleaning frame; 201. Booster spray valve; 3. Rotating brush frame; 301. Down-pressing cylinder member; 302. Rotating brush disc; 4. Conveying beam frame; 401. Adapter clamp; 402. Adjusting bracket; 5. Servo motor; 501. Telescopic connecting rod; 502. Telescopic cylinder member; 6. Contact surface detection disc; 601. Movable adjusting column; 602. Micro-touch ball; 603. Feedback limit disc; 604. Inner rotating disc; 605. Reinforcing rib; 606. Slide; 607. Compression spring member; 608. Top block. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Example 1: Please refer to Figure 1 - Fig. 9 As shown, this embodiment is a thin-walled bearing ring end face defect detection device, including a double-sided detection body 1, a servo motor 5 is arranged on the top of the double-sided detection body 1, a touch surface detection disk 6 connected to the servo motor 5 for transmission is arranged on the inner wall of the double-sided detection body 1, a plurality of groups of movable adjustment columns 601 are arranged through the bottom of the touch surface detection disk 6, an inner rotating disk 604 which is sleeved with the movable adjustment column 601 is arranged inside the touch surface detection disk 6, and a feedback limit disk 603 is arranged above the inner rotating disk 604.

[0032] A sub-body 101 with the same structure is arranged at the bottom of the double-sided detection body 1, and a rectangular groove for accommodating the contact surface detection disk 6 is recessed on the inner wall at the top of the double-sided detection body 1; a telescopic connecting rod 501 inserted into the inside of the double-sided detection body 1 is arranged at the output end of the servo motor 5, a telescopic cylinder part 502 embedded in the top of the double-sided detection body 1 is arranged on the outside of the telescopic connecting rod 501, and a shaft part which is sleeved on the bottom of the telescopic cylinder part 502 is arranged at the bottom of the telescopic connecting rod 501.

[0033] A number of pressure sensors facing the movable adjustment column 601 are arranged at the bottom of the feedback limit disk 603, and a reinforcing rib 605 that is clamped with the inner wall of the contact surface detection disk 6 is arranged at the top of the feedback limit disk 603. The inner rotating disk 604 is closely sleeved between the feedback limit disk 603 and the contact surface detection disk 6, and a connecting column that passes through the feedback limit disk 603 is arranged at the top of the inner rotating disk 604.

[0034] A plurality of extension brackets are arranged on the outer periphery of the inner rotating disk 604, and holes which are sleeved with the movable adjusting column 601 are arranged on the surface of the extension brackets, and the holes on the plurality of extension brackets are arranged in a staggered manner in sequence, a micro-touch ball 602 is sleeved on the bottom of the movable adjusting column 601, a top block 608 is arranged on the top of the movable adjusting column 601, and a slide cylinder 606 which is slidably sleeved with the outer wall of the top of the movable adjusting column 601 is arranged below the top block 608, and compression spring members 607 are arranged on the top and bottom of the slide cylinder 606.

[0035] Wait for the conveying beam 4 to transport the thin-walled bearing sleeve to the rectangular groove of the double-sided detection body 1, and the telescopic cylinder part 502 drives the contact surface detection disk 6 to slide down until the micro-touch ball 602 at the bottom of the movable adjustment column 601 contacts the end face of the thin-walled bearing sleeve and stops. The extrusion force is progressively adjusted to push the movable adjustment column 601 to slide upward along the inside of the slide tube 606, the upper group of compression spring parts 607 are compressed, and the lower group of compression spring parts 607 are stretched, and the top block 608 is continuously lifted and moved by the movable adjustment column 601 until it contacts the pressure sensor and stops, completing the detection connection state between the contact surface detection disk 6 and the end face of the thin-walled bearing sleeve. The detection method adopts the early warning loss prevention detection of scheme one and the pressure detection of scheme two.

[0036] In the first scheme, after the top block 608 contacts the pressure sensor, the telescopic cylinder 502 drives the contact surface detection disk 6 to reset slightly, keeping the top block 608 disconnected from the pressure sensor and retaining the controllable micro distance. The servo motor 5 drives the contact surface detection disk 6 to rotate, thereby detecting the rolling smoothness of the micro-touch ball 602 on the end face of the thin-walled bearing sleeve, and whether there is any obstruction, causing the micro-touch ball 602 to fluctuate up and down, prompting the movable adjustment column 601 to drive the top block 608 to slide up and contact the pressure sensor, generating pressure difference data. If pressure difference data is generated, it reflects that there is a convex defect on the end face of the thin-walled bearing sleeve; if no pressure difference data is generated, it reflects that the convex defect on the end face of the thin-walled bearing sleeve is normal, and the second scheme test can be carried out.

[0037] In the pressure test of scheme 2, the telescopic cylinder 502 further drives the contact surface detection plate 6 to slide down, so that the micro-touch ball 602 is forced to contact the end surface of the thin-walled bearing sleeve, causing the movable adjustment column 601 to be squeezed and then lift up the top block 608 to continuously contact the pressure sensor. The servo motor 5 is connected to the connecting column on the inner rotating disk 604 through the coupling and the telescopic connecting rod 501, and the connecting column is sleeved between the multiple groups of reinforcing ribs 605;

[0038] like Figure 7 As shown, the transmission circuit is composed of a servo motor 5, a coupling, a telescopic connecting rod 501, a connecting column and a reinforcing rib 605, thereby driving the contact surface detection disk 6 to rotate, and then performing a comprehensive contact rolling detection on the end face of the thin-walled bearing sleeve. If there is a recessed area on the surface of the thin-walled bearing sleeve, the rolling smoothness of the micro-touch ball 602 passing through the recessed area is impaired, and then transmitted to the movable adjustment column 601 to follow up and down fluctuations, causing the contact pressure between the top block 608 and the pressure sensor to change, thereby reflecting that there is an abnormality in this area of ​​the end face of the thin-walled bearing sleeve.

[0039] Embodiment 2: This embodiment is a device for detecting end face defects of thin-walled bearing rings, including a double-sided detection body 1 on which conveying beam frames 4 are sleeved on the inner walls on both sides, a trumpet-shaped pneumatic cleaning frame 2 is arranged on the outer wall at one end of the double-sided detection body 1, and a rotating brush frame 3 close to the pneumatic cleaning frame 2 is sleeved on the outer wall at one end of the conveying beam frame 4. The thin-walled bearing sleeve waiting to be inspected is fed and placed on the adapter fixture 401. The adapter fixture 401 is replaced in advance according to the model of the thin-walled bearing sleeve, and when the thin-walled bearing sleeve approaches, the electric push rod drives the adapter fixture 401 to move closer to each other, and the adapter fixture 401 uses a rubber groove to non-slip clamp the outer peripheral arc surface of the thin-walled bearing sleeve, thereby continuously delivering the thin-walled bearing sleeve through the rotating brush frame 3, the pneumatic cleaning frame 2 and the double-sided detection body 1.

[0040] The conveying beam 4 is composed of two symmetrical metal guide rails, and an anti-slip groove is recessed on the inner wall of the conveying beam 4, an adjusting bracket 402 is slidably sleeved inside the anti-slip groove, an adapting fixture 401 is slidably provided on the top of the adjusting bracket 402, an electric push rod connected to the adapting fixture 401 is embedded on the top of the adjusting bracket 402, and a rubber groove that adapts to the outer peripheral arc surface of the bearing is recessed on the surface of the adapting fixture 401.

[0041] The pneumatic cleaning frame 2 is composed of two sets of upper and lower frames. The inner wall of the pneumatic cleaning frame 2 is provided with multiple sets of booster spray valves 201 facing the rotating brush frame 3. The side of the pneumatic cleaning frame 2 is provided with an air pump connected to the booster spray valve 201 pipeline.

[0042] While waiting for the conveying beam 4 to transfer the limited thin-walled bearing sleeve to the area below the pneumatic cleaning frame 2, the pneumatic cleaning frame 2 is started in advance, and the air pump conveys gas to the inside of the booster spray valve 201 through the pipeline. The booster spray valve 201 guides the airflow to blow obliquely toward the rotating brush frame 3, which is used to continuously pneumatically clean the thin-walled bearing sleeve passing through the rotating brush frame 3 and the area below the pneumatic cleaning frame 2. At the same time, it is used in conjunction with the rotating brush frame 3 to prevent residues from being retained on the upper and lower end surfaces of the thin-walled bearing sleeve, and impurities generated after cleaning by the rotating brush frame 3 fly to the double-sided detection body 1 area under the action of rotational inertia.

[0043] A downward pressing cylinder part 301 is sleeved through the top of the rotating brush holder 3, and a rotating brush disc 302 sleeved with the downward pressing cylinder part 301 is arranged on the inner wall of the bottom of the rotating brush holder 3, and a rotating motor transmission-connected with the rotating brush disc 302 is arranged on the outer wall of the bottom of the downward pressing cylinder part 301, and a detachable cleaning brush is arranged on the bottom surface of the rotating brush disc 302.

[0044] When the thin-walled bearing sleeve is clamped and passes through the rotating brush holder 3, the conveying beam 4 transfers the limited thin-walled bearing sleeve to the bottom of the rotating brush holder 3, and then stops for 10-20 seconds. During this period, the downward pressure cylinder 301 drives the rotating brush disc 302 to slide down quickly, so that the rotating brush disc 302 contacts the upper and lower end surfaces of the thin-walled bearing sleeve. The rotating brush disc 302 is driven by the rotating motor to rotate through the coupling, and then the upper and lower end surfaces of the thin-walled bearing sleeve are contacted and brushed, so as to effectively remove impurities remaining on the upper and lower end surfaces of the thin-walled bearing sleeve during transportation, transfer and production processes.

[0045] It should be noted that the downward pressure cylinder 301 adjusts the spacing between multiple groups of rotating brush discs 302 according to the model of the thin-walled bearing sleeve that needs to be cleaned, so as to adopt the minimum moving spacing and time interval to complete the synchronous rotating brushing of the upper and lower end surfaces of the thin-walled bearing sleeve, and is used to coordinate the timing of placing the front thin-walled bearing sleeve into the adapter fixture 401 and the end face contact detection of the rear thin-walled bearing sleeve. It can be adjusted forward and backward according to actual production needs, but is not limited to this.

[0046] Combining the first and second embodiments, it can be seen that the booster spray valve 201 guides the inclined airflow to continuously pneumatically clean the thin-walled bearing sleeve passing through the rotating brush holder 3 area. This can effectively remove residual impurities and prevent them from being retained on the end surface of the bearing sleeve, while preventing the impurities generated after the rotating brush holder 3 is cleaned from flying to the detection area due to inertia. In this way, a clean environment is created for subsequent detection links, greatly improving the detection accuracy, reducing the interference of impurities on the detection results, ensuring the accuracy and reliability of the thin-walled bearing sleeve detection work, and helping to control product quality.

[0047] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A thin-walled bearing ring end surface defect detection device, comprising a double-sided detection body (1), characterized in that: A servo motor (5) is arranged on the top of the double-sided detection body (1); a contact surface detection disk (6) connected to the servo motor (5) for transmission is arranged on the inner wall of the double-sided detection body (1); a plurality of groups of movable adjustment columns (601) are arranged through the bottom of the contact surface detection disk (6); an inner rotating disk (604) sleeved with the movable adjustment columns (601) is arranged inside the contact surface detection disk (6); and a feedback limit disk (603) is arranged above the inner rotating disk (604); The inner walls on both sides of the double-sided detection body (1) are sleeved with a conveying beam frame (4), the outer wall at one end of the double-sided detection body (1) is provided with a trumpet-shaped pneumatic cleaning frame (2), and the outer wall at one end of the conveying beam frame (4) is sleeved with a rotating brush frame (3) close to the pneumatic cleaning frame (2).

2. A thin-walled bearing ring end surface defect detection device according to claim 1, characterized in that: A sub-body (101) with the same structure is arranged at the bottom of the double-sided detection body (1), and a rectangular groove for accommodating a contact surface detection disk (6) is arranged concavely on the inner wall of the top of the double-sided detection body (1).

3. A thin-walled bearing ring end surface defect detection device according to claim 1, characterized in that: The output end of the servo motor (5) is provided with a telescopic connecting rod (501) inserted into the double-sided detection body (1), the outside of the telescopic connecting rod (501) is provided with a telescopic cylinder member (502) sleeved on the top of the double-sided detection body (1), and the bottom of the telescopic connecting rod (501) is provided with a shaft member sleeved on the bottom of the telescopic cylinder member (502).

4. A thin-walled bearing ring end surface defect detection device according to claim 1, characterized in that: The bottom of the feedback limit plate (603) is provided with a plurality of pressure sensors facing the movable adjustment column (601); the top of the feedback limit plate (603) is provided with a reinforcing rib (605) which is engaged with the inner wall of the touch surface detection plate (6); the inner rotating plate (604) is sleeved between the feedback limit plate (603) and the touch surface detection plate (6); and the top of the inner rotating plate (604) is provided with a connecting column which passes through the feedback limit plate (603).

5. The thin-walled bearing ring end surface defect detection device according to claim 1, characterized in that: A plurality of groups of extension brackets are arranged on the outer periphery of the inner rotating disk (604), and holes are arranged on the surfaces of the extension brackets to be sleeved with the movable adjustment column (601). The holes on the plurality of groups of extension brackets are arranged in a staggered manner in sequence. A micro-touch ball (602) is sleeved on the bottom of the movable adjustment column (601), and a top block (608) is arranged on the top of the movable adjustment column (601). A slide cylinder (606) is arranged below the top block (608) to be slidably sleeved with the outer wall of the top of the movable adjustment column (601), and compression spring members (607) are arranged on the top and bottom of the slide cylinder (606).

6. A thin-walled bearing ring end surface defect detection device according to claim 1, characterized in that: The conveying beam frame (4) is composed of two symmetrically structured metal guide rails, and an anti-slip groove is recessed on the inner wall of the conveying beam frame (4), an adjusting bracket (402) is slidably sleeved inside the anti-slip groove, an adapting fixture (401) is slidably provided on the top of the adjusting bracket (402), an electric push rod connected to the adapting fixture (401) is embedded on the top of the adjusting bracket (402), and a rubber groove that adapts to the outer peripheral arc surface of the bearing is recessed on the surface of the adapting fixture (401).

7. A thin-walled bearing ring end surface defect detection device according to claim 1, characterized in that: The pneumatic cleaning frame (2) is composed of two upper and lower frame bodies spliced ​​together; a plurality of booster spray valves (201) facing the rotating brush frame (3) are arranged on the inner wall of the pneumatic cleaning frame (2); and an air pump connected to the booster spray valve (201) pipeline is arranged on the side of the pneumatic cleaning frame (2).

8. The thin-walled bearing ring end surface defect detection device according to claim 1, characterized in that: A downward-pressing cylinder component (301) is sleeved through the top of the rotating brush holder (3); a rotating brush disc (302) sleeved with the downward-pressing cylinder component (301) is arranged on the inner wall of the bottom of the rotating brush holder (3); a rotating motor drivingly connected to the rotating brush disc (302) is arranged on the outer wall of the bottom of the downward-pressing cylinder component (301); and a detachable cleaning brush is arranged on the bottom surface of the rotating brush disc (302).

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