Automobile air spring pressure maintaining valve seal visual inspection equipment

Abstract

The application relates to the technical field of seal detection, and discloses a visual detection equipment for a sealing piece of a pressure maintaining valve of an automobile air spring, which comprises a base, a rotating table rotatably installed on the base, a driving source for driving the rotating table to rotate, and a carrier disc rotatably installed on the rotating table. The application ensures that the air spring body can be automatically coaxial with the carrier disc and temporarily and stably rigidly connected with the carrier disc, the carrier disc is coaxial with a detection probe assembly through rotation of the rotating table, the detection probe assembly can be inserted into the air spring body to detect the sealing piece of the pressure maintaining valve, the carrier disc rotates once to improve the detection efficiency of the air spring body, and the deviation between the detection inlet of the air spring body and the insertion path of the detection probe assembly is avoided, so that the detection probe assembly needs to be calibrated for many times and the detection time is wasted.

Description

Technical Field

[0001] This invention relates to the field of sealing component inspection technology, specifically to a visual inspection device for automotive air spring pressure valve sealing components. Background Technology

[0002] The sealing component of the automotive air spring pressure holding valve is a core component that ensures the air tightness of the air spring. Its quality is directly related to the stability of the vehicle suspension. Therefore, during the production process, the sealing component must be subjected to strict visual inspection, focusing on checking for defects such as scratches, deformation, and missing materials in key areas such as the circumferential sealing lip and the mating surface, to ensure that its sealing performance meets the standards.

[0003] During testing, the air spring must first be removed from the assembly line or storage station, manually transported to the testing platform and fixed. Then, the operator holds an endoscope probe and inserts it into the inside of the pressure valve through the testing inlet. Visual inspection is completed by observing with the naked eye or manipulating the lens to circle the seal.

[0004] However, the removal and placement of air springs are prone to positioning deviations because it is difficult to ensure that the air spring is always in the same reference position on the inspection platform during manual handling. The inspection inlet of the pressure holding valve and the preset alignment path of the probe often deviate, requiring repeated adjustments when inserting the probe. In addition, improper force can easily scratch the seals or valve body, causing secondary damage. Furthermore, the subsequent surround inspection relies on manual operation, which is unstable. This not only reduces inspection efficiency but also increases the risk of missing defects, allowing unqualified seals to flow into the assembly process and causing safety hazards such as air spring pressure holding failure. Based on this, the present invention purposefully provides a visual inspection device for automotive air spring pressure holding valve seals that can automatically position and fix the air spring and accurately guide the probe to align with the inspection inlet of the pressure holding valve. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a visual inspection device for automotive air spring pressure valve seals, thereby solving the technical problems in the prior art.

[0006] The objective of this invention can be achieved through the following technical solutions:

[0007] Visual inspection equipment for automotive air spring pressure holding valve seals, including:

[0008] A base, on which a rotating platform is rotatably mounted, the rotating platform being driven to rotate by a drive source, a carrying tray being rotatably mounted on the rotating platform, the carrying tray being eccentrically arranged and being driven to rotate by a servo motor fixedly mounted at the bottom of the rotating platform, a positioning component being provided on the carrying tray, the carrying tray being used to place the air spring body, and the positioning component being used to adjust the air spring body to be coaxial with the carrying tray;

[0009] A support frame is fixedly installed on a base. A first telescopic component is fixedly installed on the support frame. A lifting frame is fixedly installed on the movable end of the first telescopic component. A detection probe assembly is provided on the lifting frame. The detection probe assembly is located directly above the rotating table. The distance between the detection probe assembly and the axis of the rotating table is the same as the distance between the loading tray and the axis of the rotating table. The area on the rotating table below the detection probe assembly is a detection area. A feeding area is provided on the rotating table. The feeding area and the detection area are symmetrically arranged about the axis of the rotating table.

[0010] When the rotary table rotates and moves the loading tray to the feeding area, the air spring body is loaded onto the loading tray. Then the rotary table rotates and moves the loading tray to the detection area. At this time, the loading tray and the detection probe assembly are coaxial. The positioning assembly adjusts the air spring body to be coaxial with the loading tray. Then the first telescopic component drives the lifting frame to descend, so that the detection end of the detection probe assembly extends into the air spring body. At the same time, the servo motor drives the loading tray to rotate 360 ​​degrees.

[0011] As a further aspect of the present invention: the positioning component includes a fixed plate, a clamping plate, a sliding rod, and a driving component. The three fixed plates are all fixedly installed on the loading tray and are arranged circumferentially. The three clamping plates are all slidably installed on the loading tray and move along the radial direction of the loading tray. The clamping plates are driven to move by the driving component. A sliding rod is slidably installed in each fixed plate. One end of the sliding rod is fixedly connected to the clamping plate. When the air spring body is placed on the loading tray, the air spring body is located between the three clamping plates, and the clamping plate is located between the air spring body and the fixed plate.

[0012] As a further embodiment of the present invention: the driving component includes a circular block, a sphere, a return spring, a lifting ring, and an inclined edge. The circular block is slidably mounted on a fixed plate, and one end of the circular block is fixedly connected to a clamping plate. The sphere is rotatably mounted on the end of the circular block away from the clamping plate. The lifting ring is slidably mounted on a rotating platform. The lifting ring is driven to move up and down by a power component. The lifting ring is coaxially arranged with the loading tray, and an inclined edge is provided on the inner wall of the lifting ring. The distance between the inclined edge and the axis of the loading tray decreases from bottom to top. The sphere is initially away from the fixed plate. When the power component drives the lifting ring to descend, the inclined edge abuts against and squeezes the sphere, causing the circular block to push the clamping plate closer to the axis of the loading tray.

[0013] As a further aspect of the present invention: the driving component further includes a reset spring, the circular block is connected to the fixed plate through the reset spring, and the preload of the reset spring causes the circular block to move away from the fixed plate. When the power component drives the lifting ring to rise away from the sphere, the reset spring causes the circular block to move away from the fixed plate, so that the sphere returns to its initial state.

[0014] As a further embodiment of the present invention: the power assembly includes a fixed frame, a lifting plate and a connecting frame. The fixed frame is fixedly installed on the rotating platform, the lifting plate is slidably installed inside the fixed frame, and the lifting plate is driven to rise and fall by the output source built into the fixed frame. One end of the connecting frame is fixedly connected to the lifting plate, and the other end of the connecting frame is fixedly connected to the lifting ring.

[0015] As a further aspect of the present invention: the number of the loading trays is two, the two loading trays are symmetrically arranged about the axis of the rotating platform, the number of the lifting rings and the connecting frame are two, and the two lifting rings are respectively arranged coaxially with the two loading trays.

[0016] As a further aspect of the present invention: an elastic cotton is fixedly installed at the end of the clamp away from the slide rod, and the side of the elastic cotton close to the air spring body has an inner arc design.

[0017] As a further aspect of the present invention: a sliding block is slidably installed inside the lifting frame, and multiple detection probe assemblies are fixedly installed on the sliding block. The multiple detection probe assemblies are used to detect different sealing components, and the sliding block is driven to move by a second telescopic component fixedly installed on the lifting frame.

[0018] The beneficial effects of this invention are:

[0019] 1. In this invention, by placing the air spring body on a carrier plate with positioning and clamping functions, the air spring body can automatically achieve coaxiality with the carrier plate and establish a temporary, stable, rigid connection with the carrier plate. The rotation of the rotary table makes the carrier plate coaxial with the detection probe assembly, thereby ensuring that the detection probe assembly can extend into the air spring body to detect the seal of the pressure holding valve. At the same time, the rotation of the carrier plate causes the air spring body to rotate once, allowing all the seals inside the air spring body to pass through the imaging area, thereby achieving detection of the entire area. This improves the detection efficiency of the air spring body and avoids the problem of the detection probe assembly needing multiple calibrations and wasting detection time due to the deviation between the detection inlet of the air spring body and the insertion path of the detection probe assembly. It also avoids the problem of the detection probe assembly being easily scratched due to path deviation.

[0020] 2. In this invention, by setting a reset spring, after the lifting ring rises away from the fixed plate, the preload of the reset spring pushes the round block away from the fixed plate automatically, thereby allowing the clamping plate to automatically move to a position away from the axis of the loading tray. This ensures that when the loading tray is in the loading area, the three clamping plates can be kept away from each other, thus facilitating loading and unloading without manual operation.

[0021] 3. In this invention, two trays are designed. When one tray is in the detection area, the other tray is in the loading area. This allows for simultaneous detection and replacement of the air spring body during continuous detection, avoiding the problem of the detection area being idle and waiting while the air spring body is being replaced, which would reduce detection efficiency. Furthermore, the lowering of the lifting ring in the loading area can pre-position the air spring body, and then the tray can be rotated to the detection area directly with the rotation of the rotary table to start detection immediately. This allows for the pre-positioning and clamping of the next air spring body while one air spring body is being detected, thus further improving the overall detection efficiency. Attached Figure Description

[0022] The invention will now be further described with reference to the accompanying drawings.

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the structure at the bottom of the rotary table in this invention;

[0025] Figure 3 This is a schematic diagram of the structure of the tray in this invention;

[0026] Figure 4 This is a schematic diagram of the lifting ring and the sphere fitting together in this invention;

[0027] Figure 5 This is a schematic diagram of the lifting frame in this invention.

[0028] In the diagram: 1. Base; 2. Rotary table; 3. Fixing frame; 4. Loading tray; 5. Air spring body; 6. Stand; 7. Lifting frame; 8. First telescopic component; 9. Detection probe assembly; 10. Sliding block; 11. Second telescopic component; 12. Servo motor; 13. Fixing plate; 14. Clamping plate; 15. Slide rod; 16. Elastic cotton; 17. Round block; 18. Return spring; 19. Ball; 20. Inclined edge; 21. Lifting ring; 22. Connecting frame; 23. Lifting plate. Detailed Implementation

[0029] The technical solutions of the embodiments 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, and 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.

[0030] Please see Figures 1-5 As shown, this invention is a visual inspection device for automotive air spring pressure holding valve seals, comprising:

[0031] A base 1 is provided, on which a rotating platform 2 is rotatably mounted. The rotating platform 2 is driven to rotate by a drive source. A loading tray 4 is rotatably mounted on the rotating platform 2. The loading tray 4 is eccentrically arranged and is driven to rotate by a servo motor 12 fixedly mounted at the bottom of the rotating platform 2. A positioning component is provided on the loading tray 4. The loading tray 4 is used to place the air spring body 5. The positioning component is used to adjust the air spring body 5 to be coaxial with the loading tray 4.

[0032] A support frame 6 is fixedly installed on a base 1. A first telescopic component 8 is fixedly installed on the support frame 6. A lifting frame 7 is fixedly installed on the movable end of the first telescopic component 8. A detection probe assembly 9 is provided on the lifting frame 7. The detection probe assembly 9 is located directly above the rotating table 2. The distance between the detection probe assembly 9 and the axis of the rotating table 2 is the same as the distance between the loading tray 4 and the axis of the rotating table 2. The area on the rotating table 2 below the detection probe assembly 9 is the detection area. A feeding area is provided on the rotating table 2. The feeding area and the detection area are symmetrically arranged about the axis of the rotating table 2.

[0033] When the rotary table 2 rotates and moves the tray 4 to the loading area, the air spring body 5 loads the material onto the tray 4. Then, the rotary table 2 rotates and moves the tray 4 to the detection area. At this time, the tray 4 is coaxial with the detection probe assembly 9. The positioning assembly adjusts the air spring body 5 to be coaxial with the tray 4. Then, the first telescopic member 8 drives the lifting frame 7 to descend, so that the detection end of the detection probe assembly 9 extends into the air spring body 5. At the same time, the servo motor 12 drives the tray 4 to rotate 360 ​​degrees.

[0034] In one embodiment of this invention, it should be noted that the detection probe assembly 9 of the present invention includes an endoscope, a connecting handle, a connecting circuit, etc. The above-mentioned components and the first telescopic component 8 are all prior art. The present invention does not improve them. Therefore, it is not necessary to disclose their specific mechanical structure and circuit structure, which does not affect the integrity of the present invention. The driving source can be a motor, a servo motor, or other components that can realize indexing rotational motion. This embodiment does not make specific limitations here.

[0035] The working principle of this invention is as follows: First, the air spring body 5 is described. In actual production, the air spring body 5 is a cylindrical product, with a pressure-holding valve or similar component connected to one end. It resembles a cylinder inserted into the air spring body 5. To test the seal of the pressure-holding valve, the detection probe assembly 9 needs to be inserted into the air spring body 5. During testing, the rotary table 2 is first driven by a drive source to rotate, moving the loading tray 4 to the loading area. Then, the air spring body 5 is placed on the loading tray 4. Next, the rotary table 2 is driven by the drive source to rotate 180 degrees, thus rotating the loading tray 4 to the testing area. At this point, the loading tray 4 and the detection probe assembly 9 are coaxially arranged. The positioning component can adjust the air spring body 5 to a coaxial position with the loading tray 4. At this point, the air spring body 5 is coaxial with the detection probe assembly 9. Then, the first telescopic member 8 extends to allow the lifting frame to... 7. The probe descends, allowing the detection end of the detection probe assembly 9 to insert into the air spring body 5. At this time, the detection probe assembly 9 takes pictures of the inside of the air spring body 5 to determine whether the installation of the seal is qualified and records the results. During the detection process, since the shooting angle is fixed, the servo motor 12 drives the loading plate 4 to rotate 360 ​​degrees, so that all the seals inside the air spring body 5 can pass through the shooting area, thus achieving detection of the entire area. Once a seal in one area is found to be unqualified, it is determined that the seal installation of the air spring body 5 is unqualified. After the detection is completed, the first telescopic member 8 retracts, causing the detection probe assembly 9 to reset and move away from the air spring body 5. Then, the drive source drives the rotary table 2 to rotate 180 degrees again, allowing the air spring body 5 to return to the loading area after detection. At this time, the air spring body 5 can be removed and replaced with a new air spring body 5 to be detected for the next round of detection.

[0036] like Figures 1-4 As shown, in a preferred embodiment of the present invention, the positioning assembly includes a fixed plate 13, a clamping plate 14, a sliding rod 15, and a driving assembly. The three fixed plates 13 are all fixedly installed on the loading tray 4 and are arranged circumferentially. The three clamping plates 14 are all slidably installed on the loading tray 4 and move along the radial direction of the loading tray 4. The clamping plates 14 are driven to move by the driving assembly. A sliding rod 15 is slidably installed in each fixed plate 13. One end of the sliding rod 15 is fixedly connected to the clamping plate 14. When the air spring body 5 is placed on the loading tray 4, the air spring body 5 is located between the three clamping plates 14, and the clamping plates 14 are located between the air spring body 5 and the fixed plate 13.

[0037] Specifically, the driving assembly includes a circular block 17, a sphere 19, a return spring 18, a lifting ring 21, and an inclined edge 20. The circular block 17 is slidably mounted on the fixed plate 13, and one end of the circular block 17 is fixedly connected to the clamping plate 14. The sphere 19 is rotatably mounted on the end of the circular block 17 away from the clamping plate 14. The lifting ring 21 is slidably mounted on the rotary table 2. The lifting ring 21 is driven to rise and fall by the power assembly. The lifting ring 21 is coaxially arranged with the loading tray 4, and the inner wall of the lifting ring 21 is provided with an inclined edge 20. The distance between the inclined edge 20 and the axis of the loading tray 4 decreases from bottom to top. The sphere 19 is initially away from the fixed plate 13. When the power assembly drives the lifting ring 21 to descend, the inclined edge 20 abuts against and squeezes the sphere 19, causing the circular block 17 to push the clamping plate 14 closer to the axis of the loading tray 4.

[0038] In practical applications, this embodiment, such as Figure 3 As shown in the example, when the loading tray 4 is in the loading area, the three clamping plates 14 are away from the axis of the loading tray 4. At this time, the sphere 19 is in its initial state. It is convenient to place the air spring body 5 on the loading tray 4. Then, when the rotary table 2 rotates and the loading tray 4 moves to the detection area, it is only necessary to move the three clamping plates 14 towards the air spring body 5 at the same time, so that the three clamping plates 14 abut against and clamp the air spring body 5. Because the three clamping plates 14 are arranged in a circle, and the air spring body 5 is cylindrical, when the three clamping plates 14 abut against the air spring body 5, no matter where the air spring body 5 is located on the loading tray 4, it can automatically position the air spring body 5 to a position coaxial with the loading tray 4.

[0039] When the loading tray 4 moves to the detection area, the lifting ring 21 is driven to descend via the power component, as follows: Figure 4 Taking the example shown, at this time, the inclined edge 20 abuts against the sphere 19, and the inclined edge 20 is not in contact with the circular block 17. As the lifting ring 21 continues to descend, the inclined edge 20 will squeeze the sphere 19, thereby causing the circular block 17 to push the clamping plate 14 closer to the air spring body 5, realizing the positioning and clamping fixation of the air spring body 5. The sphere 19 is rotatably installed inside the circular block 17. Therefore, when the inclined edge 20 squeezes the sphere 19, the sphere 19 will roll, thereby reducing friction. It should be noted that when the lifting ring 21 descends to a suitable height so that the clamping plate 14 abuts against the air spring body 5, the inclined edge 20 is still squeezing the sphere 19. During the test, when the loading plate 4 rotates, the clamping plate 14 abuts against and clamps the air spring body 5, which can drive the air spring body 5 to rotate stably for one revolution. The sphere 19 is rotatably installed inside the inclined edge 20, which means that when the loading plate 4 rotates, the sphere 19 will also roll around the inclined edge 20 for one revolution, thus avoiding motion interference.

[0040] like Figures 1-4As shown, in a preferred embodiment of the present invention, the drive assembly further includes a reset spring 18. The circular block 17 is connected to the fixed plate 13 through the reset spring 18. The preload of the reset spring 18 causes the circular block 17 to move away from the fixed plate 13. When the power assembly drives the lifting ring 21 to rise away from the ball 19, the reset spring 18 causes the circular block 17 to move away from the fixed plate 13, so that the ball 19 is reset to its initial state.

[0041] In practical application, this embodiment uses a reset spring 18 to push the round block 17 away from the fixed plate 13 after the lifting ring 21 rises away from the fixed plate 13. This allows the clamping plate 14 to automatically move away from the axis of the loading tray 4, thus ensuring that the three clamping plates 14 remain far apart when the loading tray 4 is in the loading area. This facilitates loading and unloading without manual operation.

[0042] like Figures 1-4 As shown, in a preferred embodiment of the present invention, the power assembly includes a fixed frame 3, a lifting plate 23 and a connecting frame 22. The fixed frame 3 is fixedly installed on the rotary table 2. The lifting plate 23 is slidably installed inside the fixed frame 3. The lifting plate 23 is driven to lift by the output source built into the fixed frame 3. One end of the connecting frame 22 is fixedly connected to the lifting plate 23, and the other end of the connecting frame 22 is fixedly connected to the lifting ring 21.

[0043] Specifically, there are two trays 4, which are symmetrically arranged about the axis of the rotating platform 2. There are also two lifting rings 21 and two connecting frames 22, and the two lifting rings 21 are coaxially arranged with the two trays 4 respectively.

[0044] In practical application, this embodiment uses a fixed frame 3 fixedly installed on the rotary table 2, and a lifting plate 23 slidably installed inside the fixed frame 3. The lifting plate 23 moves up and down synchronously through the connecting frame 22, which drives the lifting ring 21 to move up and down synchronously. When the rotary table 2 rotates, it can drive the fixed frame 3 to rotate synchronously. In this way, the connecting frame 22 and the lifting ring 21 always follow the loading tray 4, and always ensure that the lifting ring 21 and the loading tray 4 are coaxial. This allows the lifting ring 21 to be pressed down immediately when the loading tray 4 reaches the detection area, thereby positioning and clamping the air spring body 5, thus improving the detection speed.

[0045] Furthermore, the loading tray 4 is designed as two trays. When one tray 4 is in the detection area, the other tray 4 is in the loading area. This allows for simultaneous detection and replacement of the air spring body 5 during continuous detection, avoiding the problem of the detection area being idle and waiting while the air spring body 5 is being replaced, which would reduce detection efficiency. Additionally, there are two lifting rings 21 and two connecting frames 22. This means that when the lifting plate 23 descends, it will cause both lifting rings 21 on both sides to descend simultaneously. When the lifting ring 21 in the detection area descends, it positions and clamps the air spring body 5 onto the loading tray 4, and the rotation of the loading tray 4 drives the air spring body 5 to rotate. When the lifting ring 21 in the loading area descends, it can pre-position the air spring body 5, and then directly rotate the loading tray 4 to the detection area with the rotation of the rotary table 2 to begin detection. This allows for the positioning and clamping of the next air spring body 5 while one is being detected, further improving overall detection efficiency.

[0046] like Figures 1-5 As shown, in a preferred embodiment of the present invention, an elastic cotton 16 is fixedly installed at the end of the clamping plate 14 away from the slide bar 15, and the side of the elastic cotton 16 near the air spring body 5 is designed with an inner arc shape.

[0047] In practical application, an elastic cotton 16 is fixedly installed at the end of the clamping plate 14 away from the slide bar 15. That is, the elastic cotton 16 is installed on the side of the clamping plate 14 facing the air spring body 5. When the clamping plate 14 abuts against the air spring body 5, the elastic cotton 16 will first abut against the air spring body 5 and deform. At this time, the elastic cotton 16 plays the role of buffering and increasing friction, which aims to protect the surface of the air spring body 5 and enhance the stability of clamping.

[0048] like Figures 1-5 As shown, in a preferred embodiment of the present invention, a sliding block 10 is slidably installed inside the lifting frame 7, and a plurality of detection probe assemblies 9 are fixedly installed on the sliding block 10. The plurality of detection probe assemblies 9 are used to detect different seals, and the sliding block 10 is driven to move by a second telescopic member 11 fixedly installed on the lifting frame 7.

[0049] In practical application, this embodiment takes into account the various types of seals within the air spring body 5 in actual production, such as O-rings and C-rings. Therefore, multiple detection probe assemblies 9 are fixedly installed on the sliding block 10. Different detection probe assemblies 9 are used to detect different seals. Specifically, after one detection probe assembly 9 completes the detection of the corresponding seal within the air spring body 5, the lifting frame 7 is raised to move the detection probe assembly 9 away from the air spring body 5. At this time, the second telescopic member 11 drives the sliding block 10 to slide, thereby moving another detection probe assembly 9 to the original position of the detection probe assembly 9, achieving coaxiality with the air spring body 5. Then, the first telescopic member 8 drives the lifting frame 7 to descend again, allowing the new detection probe assembly 9 to extend into the air spring body 5. By adjusting the descending height of the lifting frame 7 through the first telescopic member 8, the detection probe assembly 9 can be moved to the height of the corresponding seal. In this way, a comprehensive and detailed detection of the seals of the pressure holding valve within the air spring body 5 can be performed.

[0050] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A visual inspection device for automotive air spring pressure holding valve seals, characterized in that, include: A base (1) is rotatably mounted on the base (1). The rotating platform (2) is driven to rotate by a drive source. A loading tray (4) is rotatably mounted on the rotating platform (2). The loading tray (4) is eccentrically arranged and is driven to rotate by a servo motor (12) fixedly mounted at the bottom of the rotating platform (2). A positioning component is provided on the loading tray (4). The loading tray (4) is used to place the air spring body (5). The positioning component is used to adjust the air spring body (5) to be coaxial with the loading tray (4). A support frame (6) is fixedly installed on a base (1). A first telescopic component (8) is fixedly installed on the support frame (6). A lifting frame (7) is fixedly installed on the movable end of the first telescopic component (8). A detection probe assembly (9) is provided on the lifting frame (7). The detection probe assembly (9) is located directly above the rotating table (2). The distance between the detection probe assembly (9) and the axis of the rotating table (2) is the same as the distance between the loading tray (4) and the axis of the rotating table (2). The area below the detection probe assembly (9) on the rotating table (2) is the detection area. A feeding area is provided on the rotating table (2). The feeding area and the detection area are symmetrically arranged about the axis of the rotating table (2). When the rotary table (2) rotates and the tray (4) moves to the loading area, the air spring body (5) loads the tray (4) onto the tray. Then the rotary table (2) rotates and the tray (4) moves to the detection area. At this time, the tray (4) is coaxial with the detection probe assembly (9). The positioning assembly adjusts the air spring body (5) to be coaxial with the tray (4). Then the first telescopic component (8) drives the lifting frame (7) to descend so that the detection end of the detection probe assembly (9) extends into the air spring body (5). At the same time, the servo motor (12) drives the tray (4) to rotate 360 ​​degrees. The positioning assembly includes a fixed plate (13), a clamping plate (14), a sliding rod (15), and a driving assembly. The three fixed plates (13) are fixedly installed on the loading tray (4) and are arranged circumferentially. The three clamping plates (14) are slidably installed on the loading tray (4) and move along the radial direction of the loading tray (4). The clamping plates (14) are driven to move by the driving assembly. A sliding rod (15) is slidably installed in each fixed plate (13). One end of the sliding rod (15) is fixedly connected to the clamping plate (14). When the air spring body (5) is placed on the loading tray (4), the air spring body (5) is located between the three clamping plates (14), and the clamping plates (14) are located between the air spring body (5) and the fixed plate (13). The drive assembly includes a circular block (17), a sphere (19), a return spring (18), a lifting ring (21), and a bevel (20). The circular block (17) is slidably mounted on the fixed plate (13), and one end of the circular block (17) is fixedly connected to the clamping plate (14). The sphere (19) is rotatably mounted on the end of the circular block (17) away from the clamping plate (14). The lifting ring (21) is slidably mounted on the rotary table (2). The lifting ring (21) is driven by the power assembly. The lifting ring (21) is coaxially arranged with the loading plate (4), and the inner wall of the lifting ring (21) is provided with a slanted edge (20). The distance between the slanted edge (20) and the axis of the loading plate (4) decreases from bottom to top. The sphere (19) is initially far away from the fixed plate (13). When the power component drives the lifting ring (21) to descend, the slanted edge (20) abuts against and squeezes the sphere (19), so that the round block (17) pushes the clamping plate (14) closer to the axis of the loading plate (4). The drive assembly also includes a return spring (18). The circular block (17) is connected to the fixed plate (13) through the return spring (18). The preload of the return spring (18) causes the circular block (17) to move away from the fixed plate (13). When the power assembly drives the lifting ring (21) to rise away from the ball (19), the return spring (18) causes the circular block (17) to move away from the fixed plate (13), so that the ball (19) returns to its initial state. The number of the loading trays (4) is two, and the two loading trays (4) are arranged symmetrically about the axis of the rotating table (2). The number of the lifting rings (21) and the connecting frame (22) is two, and the two lifting rings (21) are arranged coaxially with the two loading trays (4) respectively.

2. The visual inspection equipment for automotive air spring pressure holding valve seals according to claim 1, characterized in that, The power assembly includes a fixed frame (3), a lifting plate (23), and a connecting frame (22). The fixed frame (3) is fixedly installed on the rotary table (2). The lifting plate (23) is slidably installed inside the fixed frame (3). The lifting plate (23) is driven to lift by the output source built into the fixed frame (3). One end of the connecting frame (22) is fixedly connected to the lifting plate (23), and the other end of the connecting frame (22) is fixedly connected to the lifting ring (21).

3. The visual inspection equipment for automotive air spring pressure holding valve seals according to claim 1, characterized in that, An elastic cotton (16) is fixedly installed at the end of the clamp (14) away from the slide bar (15), and the side of the elastic cotton (16) near the air spring body (5) has an inner arc design.

4. The visual inspection equipment for automotive air spring pressure holding valve seals according to claim 1, characterized in that, A sliding block (10) is slidably installed inside the lifting frame (7). Multiple detection probe assemblies (9) are fixedly installed on the sliding block (10). The multiple detection probe assemblies (9) are used to detect different seals. The sliding block (10) is driven to move by a second telescopic member (11) fixedly installed on the lifting frame (7).

Images