Device for detecting appearance of finished ultra-miniature bearing
By combining an electric push rod and a bidirectional screw with an arc-shaped clamping plate, the bearing is precisely clamped and inspected from all angles, solving the problems of uneven clamping force and blind spots in existing devices, and improving inspection efficiency and accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU KUNZHOU PRECISION ELECTROMECHANICAL CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-05-15
AI Technical Summary
Existing testing devices struggle to precisely control clamping force, easily damaging bearing surfaces. They also exhibit inconsistent testing angles and cannot flexibly adapt to bearings of different sizes, resulting in low testing efficiency and missed detections.
The system employs an electric push rod and a two-way screw in conjunction with an arc-shaped clamping plate to achieve precise clamping and omnidirectional rotation of the bearing. Combined with an adjustable detection probe height, it ensures the stability and comprehensiveness of the detection process.
It achieves stability and completeness in bearing inspection, eliminates blind spots in inspection, significantly improves inspection efficiency and accuracy, and enhances the versatility and ease of operation of the device.
Smart Images

Figure CN224247696U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bearing manufacturing technology, and in particular to a device for inspecting the appearance of finished miniature bearings. Background Technology
[0002] Miniature bearings refer to bearings with a nominal outer diameter of less than 5mm. Due to their small size, high precision, and flexible operation, they are widely used in precision instruments, electronic equipment, watches, medical devices, and other fields. In these industries, where the precision and reliability of components are extremely important, the appearance quality of miniature bearings directly affects their performance and service life. Even minor defects, such as surface scratches, pits, or rust spots, can cause vibration, noise, or even accelerated wear during high-speed operation, leading to equipment failure. Therefore, it is essential to conduct rigorous inspections of finished miniature bearings using a device designed to check their appearance. This device uses a specific structural design to perform a comprehensive inspection of the bearing's appearance to ensure that it meets quality standards.
[0003] An existing device for inspecting the appearance of finished miniature bearings has the following shortcomings:
[0004] Existing testing devices often rely on manual fixation of bearings, which not only makes it difficult to accurately control the clamping force and easily causes indentations or damage to the bearing surface, but also makes it difficult to ensure the consistency and comprehensiveness of the rotation angle when manually flipping the bearing for inspection, easily leading to blind spots and missed detections. At the same time, the height of the detection probe of existing devices is usually fixed and cannot be flexibly adjusted according to bearings of different sizes. When encountering bearings with large size differences, inspectors need to frequently change the testing equipment or manually adjust the testing position, which is cumbersome and inefficient and cannot meet diverse testing needs. Utility Model Content
[0005] This utility model mainly provides a device for inspecting the appearance of finished miniature bearings, which can perform all-round inspection of the bearing appearance.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a device for inspecting the appearance of finished miniature bearings, comprising a support platform, a control panel fixedly installed on the top left rear of the support platform, an inspection platform fixedly installed on the middle of the rear side of the upper surface of the support platform, a conveyor platform fixedly installed on the front side of the upper surface of the support platform, and two flipping brackets fixedly connected to the front side of the conveyor platform.
[0007] The flipping bracket includes a connecting plate, which is fixedly connected to the front side of the conveyor table. An electric push rod is fixedly connected to the bottom of the connecting plate. The output end of the electric push rod extends through to the top of the connecting plate and is fixedly connected to a pushing block. A first motor is fixedly connected to the front side of the pushing block. The output shaft of the first motor extends through to the rear side of the pushing block and is fixedly connected to a rotating plate.
[0008] Preferably, a connecting groove is provided on the rear side of the rotating plate, and a second motor is fixedly connected to the right side of the outer surface of the rotating plate. The output shaft of the second motor passes through the interior of the connecting groove and is fixedly connected to a bidirectional screw.
[0009] Preferably, the outer surface of the bidirectional screw is threaded with threaded sliding plates on both the left and right sides. The outer surface of the threaded sliding plates is slidably connected to the inner surface of the connecting groove. The rear end of the threaded sliding plates is fixedly connected with an arc-shaped clamp, which is set on the top of the conveyor table.
[0010] Preferably, the testing platform includes a fixing frame, which is fixedly installed on the middle rear side of the upper surface of the support platform, and fixing plates are fixedly installed on both the left and right sides of the top of the fixing frame.
[0011] Preferably, a vertical slide rail is fixedly connected to the top front side of the fixed plate, a sliding sleeve plate is slidably sleeved on the outer surface of the vertical slide rail, and a detection probe is fixedly connected to the front end of the sliding sleeve plate.
[0012] Preferably, a fastening bolt is threaded to the middle of the rear side of the sliding sleeve, and the front end of the fastening bolt extends through to the rear surface of the vertical slide rail.
[0013] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:
[0014] 1. In this utility model, the second motor drives the bidirectional screw to rotate, and using the thread transmission principle, the two threaded slide plates slide relative to each other, thereby driving the arc-shaped clamping plate to accurately clamp and fix the bearing on the conveyor table. Then, the electric push rod pushes the push block to rise, smoothly lifting the clamped bearing and gradually bringing it closer to the detection probe. Then, the first motor is started to drive the rotating plate to rotate, realizing the synchronous rotation of the bearing. This series of structural coordination avoids the damage that may be caused by manual fixing and flipping of the bearing, ensuring the stability and integrity of the bearing during the detection process. At the same time, through automated all-round rotation detection, the detection blind spots are eliminated, and the detection efficiency and accuracy are greatly improved.
[0015] 2. In this utility model, after loosening the fastening bolts, the sliding sleeve can slide freely on the vertical slide rail. Based on the guiding effect of the slide rail, the height of the detection probe can be easily adjusted. After adjusting to the appropriate position, tightening the fastening bolts will lock the height. This structural design allows the detection device to flexibly adapt to micro-bearings of different sizes without frequent equipment replacement or manual large-scale adjustment of the detection position, greatly improving the versatility and ease of operation of the detection device. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the device of this utility model for inspecting the appearance of finished miniature bearings;
[0017] Figure 2 This is a schematic diagram of the structure of the testing station of this utility model;
[0018] Figure 3 This is a schematic diagram of the structure of the flip-up bracket of this utility model;
[0019] Figure 4 This is a cross-sectional structural diagram of the rotating plate of this utility model.
[0020] Legend: 1. Support platform; 2. Control panel; 3. Testing platform; 31. Fixing frame; 32. Fixing plate; 33. Vertical slide rail; 34. Sliding sleeve plate; 35. Testing probe; 36. Fastening bolt; 4. Conveyor table; 5. Tilting bracket; 51. Connecting plate; 52. Electric push rod; 53. Push block; 54. First motor; 55. Rotating plate; 56. Connecting slide groove; 57. Second motor; 58. Bidirectional screw; 59. Threaded slide plate; 510. Arc-shaped clamp. Detailed Implementation
[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0023] Please see Figures 1-4This utility model provides a technical solution: a device for inspecting the appearance of finished miniature bearings, including a support platform 1, a control panel 2 fixedly installed on the top left rear of the support platform 1, an inspection platform 3 fixedly installed on the middle of the rear side of the upper surface of the support platform 1, a conveyor platform 4 fixedly installed on the front side of the upper surface of the support platform 1, two flipping brackets 5 fixedly connected to the front side of the conveyor platform 4, the flipping brackets 5 including a connecting plate 51, the connecting plate 51 fixedly connected to the front side of the conveyor platform 4, an electric push rod 52 fixedly connected to the bottom of the connecting plate 51, the output end of the electric push rod 52 passing through to the top of the connecting plate 51 and fixedly connected to a pushing block 53, a first motor 54 fixedly connected to the front side of the pushing block 53, and the output shaft of the first motor 54 passing through to the rear side of the pushing block 53 and fixedly connected to a rotating plate 55.
[0024] like Figure 4 As shown, a connecting groove 56 is provided on the rear side of the rotating plate 55. A second motor 57 is fixedly connected to the right side of the outer surface of the rotating plate 55. The output shaft of the second motor 57 passes through the interior of the connecting groove 56 and is fixedly connected to a bidirectional screw 58. Here, when the second motor 57 is started, the bidirectional screw 58 rotates accordingly. Based on the principle of threaded transmission, the threaded sliding plates 59 on the left and right sides of the outer surface will slide relative to or opposite to each other along the inner surface of the connecting groove 56 as the screw rotates, thereby adjusting the distance between the two arc-shaped clamping plates 510, so as to achieve precise clamping and fixing of micro bearings of different sizes, and avoid uneven clamping force and surface damage that may be caused by manual operation.
[0025] like Figure 4 As shown, threaded sliding plates 59 are threadedly connected to both the left and right sides of the outer surface of the bidirectional screw 58. The outer surface of the threaded sliding plate 59 is slidably connected to the inner surface of the connecting groove 56. An arc-shaped clamping plate 510 is fixedly connected to the rear end of the threaded sliding plate 59. The arc-shaped clamping plate 510 is set on the top of the conveyor table 4. Here, the arc-shaped clamping plate 510 conforms to the arc design of the bearing, which can increase the contact area with the bearing. While providing stable clamping force, it reduces the pressure on the bearing surface and prevents indentation of the bearing during clamping. When the threaded sliding plate 59 slides under the drive of the bidirectional screw 58, the arc-shaped clamping plate 510 moves accordingly to clamp the bearing placed on the conveyor table 4, preparing for the subsequent inspection process.
[0026] like Figure 2 As shown, the testing table 3 includes a fixing frame 31, which is fixedly installed on the middle of the rear side of the upper surface of the support table 1. Fixing plates 32 are fixedly installed on both the left and right sides of the top of the fixing frame 31. Here, the fixing frame 31 and the fixing plates 32 together form a stable frame structure of the testing table 3, providing a reliable installation foundation for the vertical slide rail 33, the sliding sleeve plate 34 and the testing probe 35, ensuring the stability of the testing probe 35 during the testing process and avoiding the impact of structural shaking on the accuracy of the testing results.
[0027] like Figure 2 As shown, a vertical slide rail 33 is fixedly connected to the top front side of the fixed plate 32. A sliding sleeve 34 is slidably sleeved on the outer surface of the vertical slide rail 33. A detection probe 35 is fixedly connected to the front end of the sliding sleeve 34. Here, after loosening the fastening bolt 36, the sliding sleeve 34 loses its constraint and can slide freely up and down under the guidance of the vertical slide rail 33. The inspector can conveniently adjust the position of the detection probe 35 according to the actual height of the bearing to be inspected, so that it is at the optimal detection height. After the adjustment is completed, tighten the fastening bolt 36, and the sliding sleeve 34 is fixed on the vertical slide rail 33, thereby ensuring that the detection probe 35 remains stable during the inspection process and realizing accurate inspection of bearings of different sizes.
[0028] like Figure 2 As shown, a fastening bolt 36 is threadedly connected to the middle of the rear side of the sliding sleeve 34. The front end of the fastening bolt 36 extends through to the rear surface of the vertical slide rail 33. Here, the fastening bolt 36 plays a key role in fixing the sliding sleeve 34. When adjusting the height of the detection probe 35, loosening it allows the sliding sleeve 34 to slide freely. When the height is adjusted appropriately, tightening the fastening bolt 36 will cause its front end to abut tightly against the rear surface of the vertical slide rail 33, firmly locking the sliding sleeve 34 and preventing the detection probe 35 from shifting during the detection process, thus ensuring the stability and accuracy of the detection.
[0029] The usage and working principle of this device are as follows: Place the finished miniature bearing to be inspected on the conveyor table 4. Start the second motor 57 in the flipping bracket 5 through the control panel 2. The second motor 57 drives the bidirectional screw 58 to rotate, causing the two threaded slide plates 59 to slide relative to each other in the connecting slide groove 56, thereby driving the arc-shaped clamping plate 510 to move and stably clamp the bearing. Then, the control panel 2 controls the electric push rod 52 to start. The output end of the electric push rod 52 pushes the push block 53 to rise, causing the clamped bearing to gradually approach the detection probe 35 on the detection table 3. When the bearing reaches the appropriate detection position, the control panel 2 starts the first motor 54. The first motor 54 drives the rotating plate 55 to rotate. The rotating plate 55 drives the bearing to rotate synchronously. The detection probe 35 can then perform all-round appearance inspection on the outer surface, sides and other parts of the bearing.
[0030] When inspecting bearings of different sizes, if the current height of the inspection probe 35 is not suitable, the inspection probe 35 can be adjusted to a suitable height by loosening the fastening bolt 36, allowing the sliding sleeve 34 to slide freely on the vertical slide rail 33, and then the fastening bolt 36 can be tightened to fix it. After the inspection is completed, the electric push rod 52 drives the bearing to descend back to the conveyor table 4, the arc-shaped clamp 510 is released, and one inspection process is completed, waiting for the next bearing to enter the inspection stage. The entire inspection process is highly automated, which can effectively improve the inspection efficiency, while ensuring the accuracy of the inspection and the integrity of the bearing.
[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A device for inspecting the appearance of finished miniature bearings, comprising a support platform (1), wherein a control panel (2) is fixedly mounted on the top left rear of the support platform (1), characterized in that: A detection platform (3) is fixedly installed on the middle of the rear side of the upper surface of the support platform (1), and a conveyor platform (4) is fixedly installed on the front side of the upper surface of the support platform (1). Two flipping brackets (5) are fixedly connected to the front side of the conveyor platform (4). The flipping bracket (5) includes a connecting plate (51), which is fixedly connected to the front side of the conveyor (4). An electric push rod (52) is fixedly connected to the bottom of the connecting plate (51). The output end of the electric push rod (52) extends through to the top of the connecting plate (51) and is fixedly connected to a pushing block (53). A first motor (54) is fixedly connected to the front side of the pushing block (53). The output shaft of the first motor (54) extends through to the rear side of the pushing block (53) and is fixedly connected to a rotating plate (55).
2. The device for inspecting the appearance of finished miniature bearings according to claim 1, characterized in that: A connecting groove (56) is provided on the rear side of the rotating plate (55). A second motor (57) is fixedly connected to the right side of the outer surface of the rotating plate (55). The output shaft of the second motor (57) passes through the interior of the connecting groove (56) and is fixedly connected to a bidirectional screw (58).
3. The device for inspecting the appearance of finished miniature bearings according to claim 2, characterized in that: The outer surface of the bidirectional screw (58) is threaded with threaded sliding plates (59) on both the left and right sides. The outer surface of the threaded sliding plates (59) is slidably connected to the inner surface of the connecting groove (56). The rear end of the threaded sliding plates (59) is fixedly connected with an arc-shaped clamp (510). The arc-shaped clamp (510) is set on the top of the conveyor table (4).
4. The device for inspecting the appearance of finished miniature bearings according to claim 1, characterized in that: The testing platform (3) includes a fixing frame (31), which is fixedly installed on the middle rear side of the upper surface of the support platform (1). Fixing plates (32) are fixedly installed on the left and right sides of the top of the fixing frame (31).
5. The device for inspecting the appearance of finished miniature bearings according to claim 4, characterized in that: A vertical slide rail (33) is fixedly connected to the top front side of the fixed plate (32), and a sliding sleeve plate (34) is slidably sleeved on the outer surface of the vertical slide rail (33). A detection probe (35) is fixedly connected to the front end of the sliding sleeve plate (34).
6. The device for inspecting the appearance of finished miniature bearings according to claim 5, characterized in that: The sliding sleeve (34) is threaded with a fastening bolt (36) at the middle of its rear side, and the front end of the fastening bolt (36) extends through to the rear surface of the vertical slide rail (33).