Retainer inspection apparatus and method of inspecting a retainer

Abstract

The application belongs to the technical field of detection, and particularly relates to a cage flaw detection device and a flaw detection method thereof; wherein the cage flaw detection device comprises: a workbench, a plurality of detection stations are arranged on the workbench, and a driving disc is rotationally arranged at each detection station; a plurality of detection devices, one detection device corresponding to one detection station, are used for detecting the cage; a limiting adjusting part is slidably arranged on one side of the workbench, and the sliding direction of the limiting adjusting part is perpendicular to the moving direction of the cage; the limiting adjusting part comprises a plurality of limiting parts, and one limiting part corresponds to one detection station; wherein when the cage moves to the detection station, the limiting part moves to the cage direction to circumferentially limit the cage; when the driving disc drives the cage to circumferentially rotate, the flange at the bottom of the cage is inserted into the accommodating groove at the bottom of the limiting part, and the top wall of the accommodating groove is suitable for axially limiting the cage.

Description

Technical Field

[0001] This invention belongs to the field of detection technology, specifically relating to the testing or analysis of materials by measuring their chemical or physical properties, and particularly to cage flaw detection equipment and its flaw detection method. Background Technology

[0002] In the production and maintenance of bearing cages, flaw detection is a crucial step in ensuring their structural integrity and preventing bearing failure due to cracks and other damage. Existing flaw detection equipment often features a horizontal conveyor mechanism that transports the cage to the flaw detection station. This station is equipped with a drive disc and a detection head. After the cage moves above the drive disc, the drive disc rotates it, allowing the detection head to scan its surface and internal structure, identifying potential damage.

[0003] However, axial movement or wobbling can easily occur when the cage rotates, interfering with the scanning path of the detection head and the stability of the imaging. To solve this problem, such as... Figure 1 As shown, existing technologies typically involve symmetrically placing two bearings at the lower end of the detection head, with the outer ring of the bearing abutting against the top wall of the upper end of the cage to achieve axial limiting and suppress axial displacement.

[0004] While the above method can limit the movement of the cage, the symmetrical arrangement of the bearings will block part of the detection area of ​​the detection head, especially the contact part between the bearing and the cage. Although the drive disc can drive the cage to rotate relative to the bearing, the bearing arrangement will create a detection blind zone, which not only reduces the reliability and accuracy of the detection, but also prolongs the detection time.

[0005] Therefore, how to solve the axial limitation of the detection head during detection while avoiding obstruction of the detection area is a technical problem that urgently needs to be solved in this field.

[0006] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore, the above description is not considered to constitute information related to the technology. Summary of the Invention

[0007] This disclosure provides at least one cage flaw detection device and flaw detection method.

[0008] In a first aspect, embodiments of this disclosure provide a cage flaw detection device, comprising: The workbench has several testing stations, and each testing station is equipped with a rotating drive disc. Several testing devices, one testing device corresponding to one testing station, are used to test the cage; The limit adjustment part is slidably disposed on one side of the worktable, and its sliding direction is perpendicular to the moving direction of the cage. The limit adjustment unit includes several limit components, and one limit component corresponds to one detection station; When the cage moves to the inspection station, the limiting component moves toward the cage to circumferentially limit the cage. When the drive disc drives the cage to rotate circumferentially, the flange at the bottom of the cage is inserted into the receiving groove at the bottom of the limiting member, and the top wall of the receiving groove is adapted to axially limit the cage.

[0009] In one optional embodiment, the limiting member has a limiting groove on the side near the retainer, the limiting groove is trapezoidal, and the opening spacing at its narrowest point is smaller than the diameter of the retainer; The receiving groove is located on the bottom wall of the limiting groove near the retainer, and the opening height of the receiving groove is not less than the axial height of the lower flange of the retainer.

[0010] In one optional embodiment, the limiting adjustment part further includes two driven rollers that are slidably and rotatably disposed in the receiving groove; wherein, the limiting plate moves horizontally toward the retainer until the flange at the bottom of the retainer is inserted into the receiving groove; The driven roller abuts against the outer wall of the cage and rotates synchronously to absorb grease from the bottom outer wall of the cage.

[0011] In one alternative embodiment, an oil-absorbing ring is circumferentially fixed to the outer wall of the driven roller, the oil-absorbing ring being used to absorb grease from the outer wall of the cage.

[0012] In one optional embodiment, the limiting adjustment part further includes a connecting rod, which is slidably disposed in the receiving groove, and the sliding direction is consistent with the sliding direction of the driven roller. The end of the connecting rod abuts against the outer wall of the driven roller to scrape off the oil from the outer wall of the oil suction ring.

[0013] In one optional embodiment, a sliding groove is formed in the limiting plate, and the connecting rod is slidably disposed in the sliding groove; An elastic element is provided on the inner wall of the end of the sliding groove away from the connecting rod. The elastic element abuts against the connecting rod and is used to push the connecting rod outward.

[0014] In one alternative embodiment, the end of the connecting rod near the driven roller is configured in an arc shape that matches the outer wall of the driven roller.

[0015] In one alternative embodiment, a collection channel is provided on the side wall of the connecting rod near the driven roller. The collection channel extends along the length of the connecting rod and is used to guide the oil scraped off the outer wall of the driven roller into the collection groove inside the limiting member.

[0016] In one optional embodiment, the limit adjustment part further includes a drive assembly, which is disposed on one side of the worktable; A fixing plate is disposed at the movable end of the drive assembly, and a plurality of the limiting members are disposed at equal intervals on the fixing plate.

[0017] In one alternative embodiment, a detection device, disposed on a workbench, is used to detect a retainer; A limit adjustment unit, which is slidably disposed on one side of the worktable, includes: A limiting component is slidably mounted on the worktable. A limiting groove is provided at one end of the limiting component near the retainer, and a receiving groove is provided on the bottom wall of the limiting groove. The receiving groove is used to limit the flange of the bottom wall of the retainer. The driven roller is slidably and rotatably disposed within the receiving groove; The connecting rod is slidably disposed in the receiving groove, and its end abuts against the outer wall of the driven roller; When the retainer moves to the bottom of the detection device, the limiting member moves toward the retainer so that the retainer is inserted into the limiting groove. The flange at the bottom of the retainer is inserted into the receiving groove at the bottom of the limiting member and abuts against the driven roller. The top wall of the receiving groove is adapted to axially limit the retainer.

[0018] Secondly, this disclosure also provides a flaw detection method for a cage flaw detection device, the flaw detection method comprising: When the cage moves to the inspection station, the limiting component moves in the direction of the cage to circumferentially limit the cage; When the drive disc drives the cage to rotate circumferentially, the flange at the bottom of the cage is inserted into the receiving groove at the bottom of the limiting member, and the top wall of the receiving groove is adapted to axially limit the cage.

[0019] The beneficial effects of this invention are that it provides a cage flaw detection device and method. By setting a limiting adjustment part and opening a receiving groove at the bottom of the limiting member, the flange at the bottom of the cage can be axially limited. At the same time, the driven roller rotatably set inside the limiting member can radially limit the cage. It can achieve unobstructed scanning of the cage sidewall and top surface, so that the detection device can achieve 360° unobstructed scanning, avoid missing the detection of minor damage such as cracks and indentations, and greatly improve the detection reliability of high-precision bearing cages.

[0020] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention are realized and obtained through the structures particularly pointed out in the description and the drawings.

[0021] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of the present invention, the drawings used in the description of the specific embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 A perspective view of a cage flaw detection device in the prior art; Figure 2 A perspective view of the cage flaw detection equipment provided in the embodiments of this disclosure; Figure 3 A perspective view of the limiting adjustment part provided in an embodiment of this disclosure; Figure 4 A perspective view of the limiting member with its bottom facing upwards, provided in an embodiment of this disclosure; Figure 5 This is a schematic diagram showing the state of the cage being inserted into the limiting member according to an embodiment of this disclosure.

[0024] In the picture: 1. Workbench; 10. Drive disk; 2. Detection device; 3. Limit adjustment section; 30. Limiting component; 301. Receiving groove; 302. Limiting groove; 31. Driven roller; 32. Connecting rod; 33. Collection channel; 34. Drive assembly; 35. Fixing plate; 4. Cage; 40. Flanging. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] In this document, when it is mentioned that a first component is located on a second component, this can mean that the first component can be directly formed on the second component, or that a third component can be inserted between the first and second components. Furthermore, in the accompanying drawings, the thickness of the components may be exaggerated or reduced for the purpose of effectively describing the technical content.

[0027] The terminology used herein is for the purpose of describing specific exemplary configurations only and is not intended to be limiting. As used herein, the singular articles “a,” “one,” and “the” may also be intended to include plural forms unless this is clearly stated otherwise. The terms “including,” “comprising,” and “having” are inclusive. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

[0028] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0029] like Figures 2 to 5 As shown, at least one embodiment provides a cage flaw detection device, including: The workbench 1 has multiple inspection stations evenly spaced on it. Each inspection station has an independently rotatable drive disk 10 installed at its bottom. The drive disk 10 is driven by a motor to rotate the retainer 4 at a uniform speed in the circumferential direction. When the retainer 4 moves to the drive disk 10, the drive disk 10 drives the retainer 4 to rotate, facilitating 360-degree inspection of the retainer 4 by the inspection device 2. Several inspection devices 2 are installed above the workbench 1, corresponding one-to-one with the inspection stations. They employ ultrasonic / eddy current flaw detection probes to perform 360° scanning imaging of the outer wall, end face, and internal structure of the retainer 4, identifying defects such as cracks, pores, and indentations. A limit adjustment unit 3 is slidably installed on one side of the workbench 1, with its sliding direction perpendicular to the conveying direction of the retainer 4. It is used to circumferentially center and axially limit the retainer 4 after it has reached its designated position.

[0030] Reference Appendix Figure 3 The limiting adjustment part 3 includes a driving assembly 34, a fixed plate 35, a plurality of limiting members 30, and a driven roller 31, a connecting rod 32 and a collection channel 33 disposed in the limiting members 30. The driving assembly 34 is fixed to the side of the worktable 1 by a cylinder. The fixed plate 35 is parallel to the worktable 1 and fixed to the movable end of the driving assembly 34. The driving assembly 34 is adapted to drive the fixed plate 35 to move horizontally in the direction of the detection station. Several limiting members 30 are fixed at equal intervals on the fixed plate 35. Each limiting member 30 has a trapezoidal limiting groove 302 at one end near the detection station. The narrowest point of the limiting groove 302 is less than the outer diameter of the retainer 4, which is used to insert and circumferentially center the retainer 4. The bottom wall of the limiting member 30 has a receiving groove 301. The depth of the receiving groove 301 is not less than the axial height of the bottom flange 40 of the retainer 4. When the retainer 4 moves to the detection station, the driving assembly 34 drives the fixed plate 35 to move towards the retainer 4, and the limiting member 30 moves towards the retainer 4 until the retainer 4 is inserted into the corresponding limiting groove 302. The bottom flange 40 of the retainer 4 is inserted into the corresponding receiving groove 301. The top wall of the receiving groove 301 realizes the axial limiting of the retainer 4. The driven roller 31, which can slide and rotate, is provided in the receiving groove 301 and abuts against the outer wall of the retainer 4, thereby reducing the friction when the retainer 4 rotates relative to the limiting member 30.

[0031] Continue to refer to the appendix Figure 3 The two driven rollers 31 are symmetrically and rotatably and slidably installed in the receiving groove 301. The outer wall of the driven roller 31 abuts against the outer wall of the retainer 4. When the retainer 4 rotates, the driven roller 31 rotates synchronously with the outer wall of the retainer 4 through friction. An oil-absorbing ring is sleeved on its surface to absorb the lubricating oil remaining on the outer wall of the retainer 4. During the insertion of the retainer 4 into the limiting groove 302, it is adapted to push the driven roller 31 to move horizontally until the flange 40 of the bottom wall of the retainer 4 is inserted into the receiving groove 301. At this point, the limiting member 30 stops moving horizontally towards the retainer 4. During the horizontal movement of the limiting member 30 relative to the retainer 4, the thrust of the driven roller 31 on the retainer 4 is less than the weight of the retainer 4 itself. Furthermore, to prevent the retainer 4 from displacing relative to the drive disc 10, a lifting limit can be set manually or above the detection station. During the movement of the limiting member 30 towards the retainer 4, the lifting limit moves from top to bottom to axially pre-limit the retainer 4. After the retainer 4 is limited by the limiting member 30, the lifting limit separates from the retainer 4. The lifting limit does not affect the detection device 2.

[0032] The connecting rod 32 is slidably installed in a sliding groove inside the limiting member 30. Its inner end has an arc-shaped head that fits against the outer wall of the driven roller 31. An elastic element installed in the sliding groove pushes the connecting rod 32, ensuring the arc-shaped head always presses against the oil-absorbing ring to scrape off the adsorbed grease. A collection channel 33 is opened along the length of the connecting rod 32. The scraped grease flows through the collection channel 33 into the collection groove inside the limiting member 30, achieving automatic oil collection and preventing contamination of equipment and the detection area.

[0033] The working principle of a cage flaw detection device is as follows: The cage 4 is horizontally conveyed to the inspection station by the conveying mechanism and is located above the drive plate 10.

[0034] The drive assembly 34 pushes the fixed plate 35 and the limiting member 30 to move towards the retainer 4. The retainer 4 is inserted into the trapezoidal limiting groove 302. The retainer 4 synchronously pushes the two driven rollers 31 to move horizontally to achieve circumferential centering. At the same time, the bottom flange 40 of the retainer 4 is inserted into the receiving groove 301 to achieve axial limiting.

[0035] The drive disc 10 drives the cage 4 to rotate circumferentially at a uniform speed. The top wall of the receiving groove 301 suppresses axial movement, ensuring smooth rotation. When the cage 4 rotates, it drives the driven roller 31 to rotate, and the oil suction ring adsorbs grease from the outer wall. The connecting rod 32 continuously scrapes oil under the action of the elastic element, and the grease is collected through the collection channel 33. The probe of the detection device 2 performs a 360° blind-spot-free scan of the cage 4.

[0036] After the flaw detection is completed, the drive component 34 drives the limit component 30 to move backward, the cage 4 is released from the limit, and is sent out of the workstation by the conveying mechanism to enter the next process.

[0037] At least one disclosed embodiment provides a cage flaw detection device, including a detection device 2 disposed on a workbench 1 for detecting a cage 4; The limit adjustment part 3, which is slidably disposed on one side of the worktable 1, includes: The limiting member 30 is slidably disposed on the worktable 1. A limiting groove 302 is provided at one end of the limiting member 30 near the retainer 4. A receiving groove 301 is provided on the bottom wall of the limiting groove 302. The receiving groove 301 is used to limit the flange 40 of the bottom wall of the retainer 4. The driven roller 31 is slidably and rotatably disposed within the receiving groove 301; The connecting rod 32 is slidably disposed in the receiving groove 301, and its end abuts against the outer wall of the driven roller 31; When the retainer 4 moves to the bottom of the detection device 2, the limiting member 30 moves toward the retainer 4 so that the retainer 4 is inserted into the limiting groove 302. The flange 40 at the bottom of the retainer 4 is inserted into the receiving groove 301 at the bottom of the limiting member 30 and abuts against the driven roller 31. The top wall of the receiving groove 301 is adapted to axially limit the retainer 4.

[0038] At least one disclosed embodiment provides a flaw detection method for a cage flaw detection device, the flaw detection method comprising: When the retainer 4 moves to the inspection station, the limiting member 30 moves toward the retainer 4 to circumferentially limit the retainer 4; When the drive disc 10 drives the retainer 4 to rotate circumferentially, the flange 40 at the bottom of the retainer 4 is inserted into the receiving groove 301 at the bottom of the limiting member 30, and the top wall of the receiving groove 301 is suitable for axially limiting the retainer 4.

[0039] In the description of the embodiments of the present invention, unless otherwise expressly specified and limited, the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific circumstances.

[0040] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence unless expressly indicated herein. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer, or segment discussed above may be referred to as a second element, component, region, layer, or segment.

[0041] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A cage flaw detection device, characterized in that, include: The workbench (1) has several testing stations, and each testing station is equipped with a drive disk (10). Several testing devices (2), one testing device (2) corresponds to one testing station, used to test the cage (4); The limit adjustment part (3) is slidably disposed on one side of the worktable (1), and its sliding direction is perpendicular to the moving direction of the cage (4); The limit adjustment part (3) includes a plurality of limit members (30), and one limit member (30) corresponds to one detection station; When the retainer (4) moves to the inspection station, the limiting member (30) moves toward the retainer (4) to circumferentially limit the retainer (4). When the drive disc (10) drives the retainer (4) to rotate circumferentially, the flange (40) at the bottom of the retainer (4) is inserted into the receiving groove (301) at the bottom of the limiting member (30), and the top wall of the receiving groove (301) is adapted to axially limit the retainer (4).

2. The cage flaw detection device as described in claim 1, characterized in that, The limiting member (30) has a limiting groove (302) on the side near the retainer (4). The limiting groove (302) is trapezoidal, and the opening distance at its narrowest point is smaller than the diameter of the retainer (4). The receiving groove (301) is located on the bottom wall of the limiting groove (302) near the retainer (4), and the opening height of the receiving groove (301) is not less than the axial height of the lower flange (40) of the retainer (4).

3. The cage flaw detection device as described in claim 2, characterized in that, The limiting adjustment part (3) also includes two driven rollers (31), which are slidably and rotatably disposed in the receiving groove (301); wherein, the limiting plate moves horizontally towards the retainer (4) until the flange (40) at the bottom of the retainer (4) is inserted into the receiving groove (301); The driven roller (31) abuts against the outer wall of the retainer (4) and rotates synchronously to absorb grease from the bottom outer wall of the retainer (4).

4. The cage flaw detection device as described in claim 3, characterized in that, An oil-absorbing ring is fixed circumferentially on the outer wall of the driven roller (31), and the oil-absorbing ring is used to absorb grease on the outer wall of the retainer (4).

5. The cage flaw detection device as described in claim 4, characterized in that, The limiting adjustment part (3) also includes a connecting rod (32), which is slidably disposed in the receiving groove (301), and the sliding direction is consistent with the sliding direction of the driven roller (31); The end of the connecting rod (32) abuts against the outer wall of the driven roller (31) to scrape off the oil from the outer wall of the oil suction ring.

6. The cage flaw detection device as described in claim 5, characterized in that, A sliding groove is provided in the limiting plate, and the connecting rod (32) is slidably disposed in the sliding groove; An elastic element is provided on the inner wall of the end of the sliding groove away from the connecting rod (32). The elastic element abuts against the connecting rod (32) and is used to push the connecting rod (32) to move outward.

7. The cage flaw detection device as described in claim 5, characterized in that, The end of the connecting rod (32) near the driven roller (31) is arranged in an arc shape that matches the outer wall of the driven roller (31).

8. The cage flaw detection device as described in claim 5, characterized in that, A collection channel (33) is provided at one end of the side wall of the connecting rod (32) near the driven roller (31). The collection channel (33) extends along the length of the connecting rod (32) and is used to guide the oil scraped off the outer wall of the driven roller (31) into the collection groove in the limiting member (30).

9. The cage flaw detection device as described in claim 1, characterized in that, The limit adjustment part (3) further includes a drive assembly (34), which is disposed on one side of the worktable (1); A fixing plate (35) is disposed at the movable end of the drive assembly (34), and a plurality of limiting members (30) are disposed at equal intervals on the fixing plate (35).

10. A cage flaw detection device, characterized in that, include: The detection device (2) is set on the workbench (1) and is used to detect the retainer (4). The limit adjustment part (3) is slidably disposed on one side of the worktable (1), and includes: The limiting member (30) is slidably disposed on the worktable (1). A limiting groove (302) is provided at one end of the limiting member (30) near the retainer (4). A receiving groove (301) is provided on the bottom wall of the limiting groove (302). The receiving groove (301) is used to limit the flange (40) of the bottom wall of the retainer (4). The driven roller (31) is slidably and rotatably disposed within the receiving groove (301); The connecting rod (32) is slidably disposed in the receiving groove (301) and its end abuts against the outer wall of the driven roller (31); When the retainer (4) moves to below the detection device (2), the limiting member (30) moves toward the retainer (4) so ​​that the retainer (4) is inserted into the limiting groove (302); The flange (40) at the bottom of the retainer (4) is inserted into the receiving groove (301) at the bottom of the limiting member (30) and abuts against the driven roller (31). The top wall of the receiving groove (301) is adapted to axially limit the retainer (4).

11. A flaw detection method for a cage flaw detection device, characterized in that, The cage flaw detection equipment as described in any one of claims 1-10, wherein the flaw detection method comprises: When the retainer (4) moves to the inspection station, the limiting member (30) moves toward the retainer (4) to circumferentially limit the retainer (4). When the drive disc (10) drives the retainer (4) to rotate circumferentially, the flange (40) at the bottom of the retainer (4) is inserted into the receiving groove (301) at the bottom of the limiting member (30), and the top wall of the receiving groove (301) is adapted to axially limit the retainer (4).

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