Detection equipment and detection method for large sealing ring

Abstract

The invention relates to detection equipment and detection method for a large sealing ring, and the equipment comprises an operation mechanism which comprises a first transmission wheel and a second transmission wheel, and is used for connecting with the sealing ring and moving the sealing ring in a preset direction, so that all positions of the sealing ring pass through a detection position in sequence in the moving process; the detection mechanism is used for acquiring an image of a local colloid of the sealing ring in a detection position for detection, the detection mechanism comprises a plurality of cameras and a light source assembly, the shooting range of the plurality of cameras corresponds to the detection position, the moving distance of the sealing ring each time is matched with the shooting range, and the light source assembly is used for detecting the local colloid of the sealing ring in the detection position. The plurality of cameras are arranged at intervals along the circumferential direction of the detection position; the light source assembly comprises a cover body structure and a body structure which are both provided with light sources, the cover body structure is movably connected with the body structure, and the cover body structure is used for opening or covering the detection position. The method has the effects of improving the detection efficiency and avoiding missing detection.

Description

Technical Field

[0001] This application relates to the technical field of seal ring detection, and particularly to a detection device and a detection method for large seal rings. Background Art

[0002] A seal ring is an important sealing element in a mechanical structure, mainly used in static sealing and reciprocating motion sealing occasions, and is widely used in industries such as valves and hydraulic cylinders. Seal rings are generally injection-molded from materials such as rubber or silica gel. Cavities or cracks may occur during injection molding, and these defects will greatly affect the sealing performance of the seal ring. Therefore, defect detection is required before the seal ring leaves the factory.

[0003] Currently, small seal rings for valves and the like can be automatically detected by detection equipment, but large seal rings for hydraulic cylinders and the like generally adopt the method of manual inspection, with low detection efficiency and prone to local missed detection of large seal rings. Summary of the Invention

[0004] In view of this, this application provides a detection device and a detection method for large seal rings to improve the detection efficiency and avoid missed detection.

[0005] On the one hand, a detection device for large seal rings provided by this application adopts the following technical solutions: A detection device for large seal rings includes a running mechanism, including a first driving wheel and a second driving wheel, for connecting with the seal ring and moving the seal ring in a predetermined direction, so that all positions of the seal ring pass through the detection position in sequence during the movement; a detection mechanism for obtaining an image of the local colloid of the seal ring at the detection position for detection. The detection mechanism includes a plurality of cameras and a light source assembly. The shooting ranges of the plurality of cameras correspond to the detection position. The moving distance of the seal ring each time matches the shooting range. The plurality of cameras are arranged at intervals along the circumferential direction of the detection position; the light source assembly includes a cover structure and a body structure both provided with light sources. The cover structure is movably connected to the body structure. The cover structure is used to open or cover the detection position. When the detection position is covered, the light source covers the circumferential surface of the local colloid.

[0006] By adopting the above technical solutions, automatic detection of the seal ring is realized, the detection efficiency is improved, global detection in the total length direction of the seal ring and all-round detection of the circumferential surface of the colloid are realized, and the missed detection phenomenon is avoided. When the detection position is opened, it is convenient to place the seal ring. When the detection position is covered, the circumferential surface of the measured local colloid is uniformly brightened by the light source in all directions, and a clearer captured image can be obtained, improving the detection accuracy.

[0007] Preferably, the first driving wheel is provided with a first positioning portion, the second driving wheel is provided with a second positioning portion, the sealing ring is connected to the first positioning portion and the second positioning portion, and the detection position is located between the first driving wheel and the second driving wheel By adopting the above technical solution, the sealing ring rotates synchronously with the driving wheel, realizing the movement of the sealing ring.

[0008] Preferably, the operating mechanism includes a guiding assembly, which is used to guide the sealing ring before it enters the detection position and after it exits the detection position.

[0009] By adopting the above technical solution, the sealing ring can smoothly enter and exit the detection position.

[0010] Preferably, the operating mechanism includes a first pressing wheel and a second pressing wheel. The first pressing wheel faces the first driving wheel, and the second pressing wheel faces the second driving wheel, and respectively press the sealing rings located at the first positioning portion and the second positioning portion.

[0011] By adopting the above technical solution, the synchronization degree between the sealing ring and the driving wheel is improved.

[0012] Preferably, it further includes a pressure regulating mechanism, which includes a first pressure regulating component and a second pressure regulating component. The first pressure regulating component is used to adjust the distance between the first driving wheel and the first pressing wheel, and the second pressure regulating component is used to adjust the distance between the second driving wheel and the second pressing wheel.

[0013] By adopting the above technical solution, sealing rings of different sizes can be detected.

[0014] Preferably, the pressure regulating mechanism further includes a third pressure regulating component and a fourth pressure regulating component, and the third pressure regulating component and the fourth pressure regulating component are respectively used to adjust the pressure applied by the first pressing wheel and the second pressing wheel to the sealing ring.

[0015] By adopting the above technical solution, sealing rings of different materials can be detected.

[0016] Preferably, the detection mechanism includes a flip structure. The cover structure is turned up and down through the flip structure. When the cover structure is turned up, the detection position is opened, and when the cover structure is turned down, the detection position is covered.

[0017] Preferably, the flip cover structure includes a gas spring, a first connecting rod, a second connecting rod, and a third connecting rod. One end of the gas spring is connected to the machine frame, and the other end is connected to the first end of the first connecting rod. The second end of the first connecting rod is connected to the cover structure, the third end of the first connecting rod is connected to the body structure through the third connecting rod, and the second connecting rod is respectively connected to the cover structure and the body structure.

[0018] Through the above technical solution, the cover structure can open or cover the detection position.

[0019] Preferably, the cover structure is arc-shaped, the body structure is C-shaped, and after the cover structure is turned down, the light source assembly is circular.

[0020] By adopting the above technical solution, the entire circumference of the cross-section of the sealing ring can be photographed, realizing multi-directional detection.

[0021] On the other hand, the present application provides a method for detecting a large sealing ring, which uses the large sealing ring detection device described in any one of the above, and the steps are as follows: Connect the sealing ring to the moving mechanism; Input the number of shootings and / or the number of movements; Move the cover structure to cover the detection position; Take an image of the colloid at the detection position, and move the photographed colloid out of the detection position until the set number of shootings and / or the number of movements is completed.

[0022] By adopting the above technical solution, the detection work of the sealing ring is completed.

[0023] Through the large sealing ring detection device and detection method provided by the embodiments of the present application, the automatic detection of the sealing ring is realized, and the detection efficiency is improved. By arranging a plurality of cameras at intervals in the circumferential direction of the detection position, multi-directional detection of the sealing ring is realized. By setting the moving distance of the sealing ring to match the shooting range of the camera, the shooting range of the camera corresponds to the range of the detection position, and by setting the number of movements and / or the number of shootings through the control system, the detection of the sealing ring in the length direction is realized, so that all positions of the entire sealing ring can be detected, avoiding the phenomenon of missed detection. Description of the Drawings

[0024] Figure 1 is an external schematic diagram of the large sealing ring detection device provided by Embodiment 1 of the present application.

[0025] Figure 2 is a three-dimensional schematic diagram inside the large sealing ring detection device provided by Embodiment 1 of the present application.

[0026] Figure 3It is another three-dimensional schematic diagram inside the large sealing ring detection device provided in the first embodiment of the present application.

[0027] Figure 4 It is a front view schematic diagram inside the large sealing ring detection device provided in the first embodiment of the present application.

[0028] Figure 5 It is a three-dimensional schematic diagram of the first pressure regulating component provided in the first embodiment of the present application.

[0029] Figure 6 It is a three-dimensional schematic diagram of the third pressure regulating component provided in the first embodiment of the present application.

[0030] Figure 7 It is a side view schematic diagram of the large sealing ring detection device provided in the first embodiment of the present application.

[0031] Figure 8 It is a schematic diagram of the detection position when the light source component is opened provided in the first embodiment of the present application.

[0032] Figure 9 It is a schematic diagram of the detection position when the light source component is covered provided in the first embodiment of the present application.

[0033] Figure 10 It is a flow schematic diagram of the large sealing ring detection method provided in the first embodiment of the present application.

[0034] Figure 11 It is a schematic diagram of the operating mechanism and the pressure regulating mechanism provided in the second embodiment of the present application.

[0035] Description of reference numerals in the drawings: 1. Frame; 11. Mounting plate; 2. Control device; 3. Operating mechanism; 31. Driving assembly; 311. First driving structure; 3111. Rotating motor; 3112. First synchronous belt; 3113. Motor base; 312. Second driving structure; 32. Transmission assembly; 321. First transmission structure; 3211. First transmission wheel; 3212. First rotating shaft; 3213. First driven pulley; 3214. First positioning portion; 322. Second transmission structure; 3221. Second transmission wheel; 33. Guide assembly; 331. First guide wheel; 332. Second guide wheel; 341. Auxiliary wheel; 35. Winding wheel assembly; 351. Limiting strip; 352. Adjusting plate; 353. Nut handle; 354. Winding wheel; 36. Extrusion assembly; 361. First extrusion structure; 3611. First extrusion wheel; 3612. Third rotating shaft; 3613. Third main pulley; 362. First anti-slip structure; 3621. Encoder; 3622. Third synchronous belt; 3623. Third driven pulley; 363. Second extrusion structure; 3631. Second extrusion wheel; 364. Second anti-slip structure; 4. Detection mechanism; 41. Shooting assembly; 411. Camera; 412. Connecting member; 413. Protective cover; 42. Light source assembly; 421. Cover structure; 4211. First light source; 4212. First light source bracket; 422. Body structure; 4221. Second light source; 4222. Second light source bracket; 4223. Semi-circular plate; 4224. Positioning hole; 423. Flap structure; 4231. Gas spring; 4232. First connecting rod; 4233. Second connecting rod; 4234. Third connecting rod; 424. Shooting area; 5. Voltage regulating mechanism; 51. First voltage regulating component; 511. First fixing plate; 512. First cylinder; 513. Second fixing plate; 52. Third voltage regulating component; 521. Third fixing plate; 522. Second slide rail assembly; 523. Second cylinder; 524. Third cylinder; 527. Cylinder seat; 528. Push plate; 611. Transmission wheel; 612. Rotating motor; 621. Extrusion wheel; 622. Stepping motor; 623. Guide rod. Detailed implementation manners

[0036] To better understand the purpose, technical solution, and advantages of this application, the following describes and explains this application in conjunction with the accompanying drawings and embodiments. However, those of ordinary skill in the art should understand that this application can be implemented without these details. In some cases, to avoid unnecessary description from obscuring aspects of this application, well-known methods, processes, systems, components, and / or circuits that have been described at a higher level will not be elaborated further. For those of ordinary skill in the art, it is obvious that various changes can be made to the disclosed embodiments of this application, and without departing from the principles and scope of this application, the general principles defined in this application can be applied to other embodiments and application scenarios. Therefore, this application is not limited to the illustrated embodiments, but conforms to the broadest scope consistent with the scope claimed in this application.

[0037] It should be noted here that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation to the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0038] In the description of this application, the meaning of "several" is one or more, the meaning of "multiple" is more than two, and understandings such as "greater than", "less than", "exceeding", etc. do not include the present number, and understandings such as "above", "below", "within", etc. include the present number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0039] In the description of this application, the description with reference to terms such as "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a combined manner.

[0040] A large seal ring detection device and detection method disclosed in an embodiment of this application are applicable to the detection of large seal rings of different sizes. The large seal ring can be a seal ring with a diameter of more than 500 mm. According to the material of the seal ring, the large seal rings described in this application include seal rings of various plastic materials such as rubber seal rings, silicone seal rings, and Teflon seal rings.

[0041] Embodiment 1: Please refer to Figure 1 and Figure 9, is a large seal ring detection device disclosed in Embodiment 1 of the present application.

[0042] As Figure 1 and Figure 2 shown, the large seal ring detection device includes a frame 1, a control device 2, and an operating mechanism 3 and a detection mechanism 4 located inside. The frame 1 includes a mounting plate 11. The control device 2 includes a control system, a display screen, and an operation keyboard. The control system is used to control the start and stop of the operating mechanism 3 and the detection mechanism 4, set detection parameters, and identify and judge the appearance defects of the seal ring, etc. The display device is used to display the detection data and detection results of the measured seal ring, etc. The operation keyboard is used for inputting information data. The operating mechanism 3 is used to move the seal ring in a set direction so that all positions in the length direction of the seal ring can pass through the detection position in sequence for detection, avoiding missed detection positions. The detection mechanism 4 is used to obtain a partial image of the seal ring. The partial image is an image of the partial colloid of the seal ring located within the detection position, and the image is sent to the control system for detection. The detection mechanism 4 includes a plurality of cameras 411. The plurality of cameras 411 face the detection position. The shooting ranges of the plurality of cameras 411 correspond to the spatial range of the detection position. The plurality of cameras 411 are arranged at intervals along the circumference of the detection position to take pictures from different directions, so that the circumferential surface of the measured colloid can be detected in all directions. An image is obtained by shooting the seal ring located at the detection position with a camera and provided to the system for detection. After shooting, the operating mechanism 3 drives the seal ring to move, so that the photographed partial colloid moves out of the detection position, and the unphotographed partial colloid enters the detection position for detection. The moving distance of the seal ring each time matches the shooting range. For example, in the moving direction of the seal ring, the shooting range of the camera 411 used is 10 cm, then the moving distance of the seal ring each time is set to 10 cm. Therefore, according to the total length of the seal ring, the number of movements and / or the number of shootings can be set through the control system, so as to complete the detection work of the entire seal ring. Specifically, the size of the detection position can also be set according to the shooting range of the camera 411, so that the shooting range of the camera 411, the moving distance of the seal ring, and the size of the detection position are all matched. The detection mechanism 4 further includes a light source assembly 42. The light source assembly 42 includes a cover structure 421 and a body structure 422. Light sources are provided on both the cover structure 421 and the body structure 422. The cover structure 421 and the body structure 422 are movably connected, so that the detection position can be opened or covered. When the detection position is opened, it is convenient for the detection personnel to place the seal ring. When the detection position is covered, it is convenient for the side of the seal ring facing the operator to also receive light, which is convenient for detection.

[0043] In the embodiment of the present application, the running mechanism 3 drives the sealing ring to move to achieve self-rotation, and the detection mechanism 4 takes pictures of the sealing ring to obtain images for the control system to detect, realizing automatic detection and improving the detection efficiency. By setting the moving distance of the sealing ring to match the shooting range of the camera 411, and the shooting range of the camera 411 corresponding to the range of the detection position, the entire length direction of the sealing ring can be detected. By arranging multiple cameras 411 at intervals in the circumferential direction of the detection position, all-round detection of the radial direction of the cross-section of the sealing ring is achieved, so that all positions of the entire sealing ring can be detected, avoiding missed detection.

[0044] In the embodiment of the present application, the moving direction of the sealing ring is from left to right of the equipment. The circumferential direction of the detection position is the same as the circumferential direction of the local colloid to be measured, and the length direction of the detection position is the same as the moving direction of the sealing ring.

[0045] Please refer to Figures 2 to 4, the running mechanism 3 includes a driving component 31 and a transmission component 32. The driving component 31 is connected to the transmission component 32. During detection, it can be connected to the sealing ring through the transmission component 32. When the driving component 31 starts, it drives the transmission component 32 to operate and transmit, and the sealing ring moves synchronously with the transmission component 32. The driving component 31 includes a first driving structure 311 and a second driving structure 312, and the transmission component 32 includes a first transmission structure 321 and a second transmission structure 322. The first transmission structure 321 is connected to the first driving structure 311, and the second transmission structure 322 is connected to the second driving structure 312. In the embodiment of the present application, the first driving structure 311 includes a rotating motor 3111, a first main pulley (not shown in the figure), and a first synchronous belt 3112. The rotating motor 3111 is connected to the first main pulley, and the first main pulley is connected to the first transmission structure 321 through the first synchronous belt 3112; the second driving structure 312 is the same as the first driving structure 311 and is symmetrically arranged. The first transmission structure 321 includes a first transmission wheel 3211, a first rotating shaft 3212, and a first driven pulley 3213. The first driven pulley 3213 and the first transmission wheel 3211 are connected to both ends of the first rotating shaft 3212. The first driven pulley 3213 is connected to the first main pulley through the first synchronous belt 3112. The first rotating shaft 3212 includes a bearing sleeve (not shown in the figure), and the bearing sleeve is connected to the rotating motor 3111 through a motor base 3113. The second transmission structure 322 has the same structure as the first transmission structure 321. It includes a second transmission wheel 3221. The first transmission wheel 3211 and the second transmission wheel 3221 are arranged at intervals in the moving direction of the sealing ring and have the same axis. The rotating direction and speed of the first transmission wheel 3211 and the second transmission wheel 3221 are the same, so as to realize the synchronous operation of the sealing ring. The first transmission wheel 3211 is provided with a first positioning portion 3214, and the second transmission wheel 3221 is provided with a second positioning portion. The first positioning portion 3214 and the second positioning portion are used to position the sealing ring to prevent the sealing ring from slipping. The structural dimensions of the first positioning portion 3214 and the second positioning portion can be the same or different. In the embodiment of the present application, the first positioning portion 3214 is a first groove provided on the circumferential surface of the first transmission wheel 3211, and the second positioning portion is a second groove provided on the circumferential surface of the second transmission wheel 3221. The colloid of the sealing ring is positioned through the first groove and the second groove. The first groove and the second groove can be provided with rough portions to increase the friction with the sealing ring and improve the anti-slip effect. The rough portion can be irregular bumps or patterns provided on the groove wall and the groove bottom of the groove, such as grid-like patterns, strip-like patterns, etc. In some other embodiments, the first positioning portion and / or the second positioning portion can be two baffles protruding on the circumferential surface of the transmission wheel, and the sealing strip is positioned between the two baffles.

[0046] In the embodiment of the present application, the detection position is located between the first transmission wheel 3211 and the second transmission wheel 3221, and the relative distance between the circumferential surface of the first transmission wheel 3211 and the circumferential surface of the second transmission wheel 3221 is the length dimension of the detection position.

[0047] Please refer to Figure 2 and Figure 4 , the dotted part in the figure represents the position of the sealing ring during detection. The operating mechanism 3 also includes a guide assembly 33, and the guide assembly 33 includes a guide portion, which is used to guide the sealing ring before the sealing ring enters the detection position and after it moves out of the detection position, so that the sealing ring can smoothly enter or move out of the detection position and move smoothly in the predetermined direction. The guide assembly 33 provided in the embodiment of the present application includes a first guide wheel 331 and a second guide wheel 332, the first guide wheel 331 is located on the side of the first transmission wheel 3211 away from the second transmission wheel 3221, and the second guide wheel 332 is located on the side of the second transmission wheel 3221 away from the first transmission wheel 3211, and the first guide wheel 331 and the second guide wheel 332 are respectively provided with a first guide portion and a second guide portion for guiding the sealing ring. The number of first guide wheels 331 and second guide wheels 332 can be set accordingly based on the material and size of the sealing ring. In the embodiment of the present application, there are two first guide wheels 331 and two second guide wheels 332. The two first guide wheels 331 are spaced apart on the same side of the first transmission wheel 3211, and the two second guide wheels 332 are spaced apart on the same side of the second transmission wheel 3221. The first guide wheel 331 is used to clamp and guide the sealing ring before it enters the detection position so that it can smoothly enter the detection position. The second guide wheel 332 is used to clamp and guide the sealing ring after detection so that it can smoothly move out of the detection position. In this embodiment, the first guide wheel 331 includes two flat wheels spaced apart along the axis. The opposite side walls of the two flat wheels and the area between the two flat wheels form a first guide portion. The second guide wheel 332 has the same structure as the first guide wheel 331.

[0048] In other embodiments, the guide assembly 33 can be two strip-shaped guide blocks, each of which has a guide groove with both ends passing through and the groove facing upward. The length direction of the guide groove is consistent with the movement direction of the sealing ring, and the sealing ring is guided by the guide groove.

[0049] like Figure 4 As shown, an auxiliary wheel 341 can also be set between the first guide wheel 331 and the first transmission wheel 3211, and a third positioning part is set on the auxiliary wheel 341. The structure of the third positioning part can be the same as that of the first positioning part 3214, and its size can be larger than that of the first positioning part 3214. It is used to assist the extra-large sealing ring in the feeding detection, so as to facilitate the stable detection of the extra-large sealing ring.

[0050] Please refer to Figure 2 and Figure 4, the running mechanism 3 further includes two winding wheel assemblies 35. The two winding wheel assemblies 35 are symmetrically arranged below the first guide wheel 331 and the second guide wheel 332 respectively. The winding wheel assembly 35 includes a limit strip 351, an adjusting plate 352, a nut handle 353 and a winding wheel 354. The limit strip 351 is horizontally arranged along the moving direction of the sealing ring and is connected to the mounting plate 11. The adjusting plate 352 is located above the limit strip 351. The adjusting plate 352 is provided with a strip-shaped hole parallel to the limit strip 351. The nut handle 353 passes through the strip-shaped hole and is threadedly connected to the mounting plate 11. The bottom of the adjusting plate 352 abuts against the limit strip 351 to limit the downward swing of the adjusting plate 352. The winding wheel 354 is connected to one end of the adjusting plate 352 away from the strip-shaped hole. The adjusting plate 352 can move along the length direction of the strip-shaped hole, so that the circumferential surface of the winding wheel 354 approaches or moves away from the driving wheel. When placing the sealing ring, the colloid of the sealing ring can bypass from the first guide wheel 331 to the bottom of the corresponding winding wheel 354, and then bypass from the bottom of the corresponding winding wheel 354 to the upper first driving wheel 3211. After passing through the detection position and coming out from the second driving wheel 3221, it can bypass to the bottom of the corresponding winding wheel, and then bypass from the bottom of the corresponding winding wheel to the upper second guide wheel 332. According to the material and wire diameter of the sealing ring, the distance between the circumferential surface of the winding wheel 354 and the circumferential surface of the corresponding driving wheel is adjusted, and then the position of the winding wheel 354 is locked and fixed by the nut handle 353. By providing the winding wheel assembly 35, the sealing ring bypasses first before entering the detection position and after moving out of the detection position, and the contact between the sealing ring and the driving wheel is more fitting, improving the stability of the sealing ring on the first driving wheel 3211 and the second driving wheel 3221.

[0051] Please refer to Figures 2 to 6, the running mechanism 3 further includes an extrusion assembly 36. The extrusion assembly 36 includes a first extrusion structure 361, a second extrusion structure 363, a first anti-slip structure 362, and a second anti-slip structure 364. The first extrusion structure 361 includes a first extrusion wheel 3611, a third rotating shaft 3612, and a third main pulley 3613. The first anti-slip structure 362 includes an encoder 3621, a third synchronous belt 3622, and a third driven pulley 3623. The two ends of the third rotating shaft 3612 are respectively connected to the first extrusion wheel 3611 and the third main pulley 3613. The third main pulley 3613 is connected to the third driven pulley 3623 through the third synchronous belt 3622. The encoder 3621 is connected to the third driven pulley 3623. The second extrusion structure 363 is the same as the first extrusion structure 361 and is symmetrically arranged. The first anti-slip structure 362 is the same as the second anti-slip structure 364 and is symmetrically arranged. The first extrusion wheel 3611 and the second extrusion wheel 3631 are respectively located above the first driving wheel 3211 and the second driving wheel 3221, and are respectively opposite to the first driving wheel 3211 and the second driving wheel 3221. The two extrusion wheels respectively extrude the sealing rings located at the first positioning portion 3214 and the second positioning portion to improve the synchronization degree between the sealing ring and the driving wheel during operation. When the first driving wheel 3211 and the second driving wheel 3221 rotate, the corresponding extrusion wheels rotate accordingly. The encoder 3621 judges the rotation speed of the corresponding extrusion wheel by detecting the rotation speed of the third driven pulley 3623. If the rotation speeds of the first extrusion wheel 3611 and the second extrusion wheel 3631 are inconsistent, or the rotation speeds of the extrusion wheel and the corresponding driving wheel are inconsistent, it is considered that there is a slipping phenomenon, and a warning message is sent to the system.

[0052] In the embodiment of the present application, the axes of the wheel bodies of the driving wheel, the extrusion wheel, and the guiding wheel are all horizontally arranged and perpendicular to the moving direction of the sealing ring.

[0053] Please refer to Figure 5 and Figure 6, the detection device further includes a pressure regulating mechanism 5, which includes a first pressure regulating component 51, a second pressure regulating component, a third pressure regulating component 52 and a fourth pressure regulating component. The first pressure regulating component 51 is connected to the first driving structure 311 and is used to adjust the vertical position of the first transmission wheel 3211. The second pressure regulating component is connected to the second driving structure 312 and is used to adjust the vertical position of the second transmission wheel 3221, so as to adapt to sealing rings with different wire diameters. The third pressure regulating component 52 is connected to the first extrusion structure 361, and the fourth pressure regulating component is connected to the second extrusion structure 363, which are respectively used to adjust the pressure exerted by the first extrusion wheel 3611 and the second extrusion wheel 3631 on the sealing ring to adapt to sealing rings made of different materials. The first pressure regulating component 51 includes a first fixing plate 511, a first cylinder 512, a first slide rail assembly (not shown in the figure) and a second fixing plate 513. The first fixing plate 511 is connected to the mounting plate 11. The slide rail of the first cylinder 512 and the first slide rail assembly is connected to the first fixing plate 511. The telescopic shaft of the first cylinder 512 is connected to the front of the second fixing plate 513. The back of the second fixing plate 513 is connected to the slider of the first slide rail assembly. The front of the second fixing plate 513 is also connected to the rotating motor 3111. Through the reciprocating motion of the first cylinder 512, the second fixing plate 513 also reciprocates along the guide rail. Therefore, the rotating motor 3111 on the second fixing plate 513 also reciprocates in the same direction. Subsequently, the first transmission wheel 3211 also moves accordingly, realizing the adjustment of the position. The structures of the first pressure regulating component 51 and the second pressure regulating component are the same and are symmetrically arranged. The third pressure regulating component 52 includes a third fixing plate 521, a second slide rail assembly 522, a second cylinder 523, a third cylinder 524, a cylinder seat 527 plate, a push plate 528 and a fourth fixing plate (not shown in the figure). The third fixing plate 521 is connected to the mounting plate 11. The slide rail of the second slide rail assembly 522 is connected to the third fixing plate 521. The back of the fourth fixing plate (not shown in the figure) is connected to the slider of the second slide rail assembly 522. The second cylinder 523 and the third cylinder 524 are connected to the cylinder seat 527 plate. The cylinder seat 527 plate is connected to the third fixing plate 521. The telescopic shafts of the second cylinder 523 and the third cylinder 524 are connected to the push plate 528. The encoder 3621 is connected to the front of the fourth fixing plate and is located at one end far from the push plate 528. The side of the push plate 528 is connected to the front of the fourth fixing plate. Through the reciprocating motion of the second cylinder 523 and the third cylinder 524, the push plate 528 pushes the fourth fixing plate to move up and down. Subsequently, the encoder 3621 drives the first extrusion wheel 3611 to move up and down accordingly, and can adjust the pressure of the extrusion wheel on the sealing ring on the transmission wheel. The fourth pressure regulating component has the same structure as the third pressure regulating component 52 and is symmetrically arranged. By setting the pressure regulating mechanism 5, the distance between the extrusion wheel and the transmission wheel can be adjusted according to the material and wire diameter of the sealing ring, so that the detection device can detect sealing rings made of different materials and different sizes.

[0054] Please refer toFigures 7 to 9 , the detection mechanism 4 includes a photographing component 41 and a light source component 42. The photographing component 41 includes a plurality of cameras 411, and the plurality of cameras 411 are arranged at intervals along the circumference of the detection position to photograph different orientations of the sealing ring, avoiding missed detection positions. As shown in Figure 2, there are 4 cameras 411. The two cameras 411 before and after the frame 11 can be connected by a connecting frame 412. A protective cover 413 can be provided on the camera 411 for waterproof and dustproof purposes. The cameras 411 described in the embodiments of the present application are all industrial cameras. The number and arrangement positions of the cameras 411 are determined according to the photographing range, so as to cover the circumference of the detection position, so that the radial surfaces of the colloid of the sealing ring located at the detection position can all be photographed. Please refer to Figure 7 , the light source component 42 further includes a flip structure 423. The cover structure 421 can be turned up and down relative to the body structure 422 through the flip structure 423. When the cover structure 421 is turned up, the detection position is opened. When the cover structure 421 is turned down, the detection position is covered. The flip structure 423 includes a gas spring 4231, a first connecting rod 4232, a second connecting rod 4233, and a third connecting rod 4234. The cover structure 421 includes a first light source 4211 and a first light source bracket 4212. The body structure 422 includes a plurality of second light sources 4221 and second light source brackets 4222. One end of the gas spring 4231 is connected to the frame 11, and the other end is connected to the first end of the first connecting rod 4232. The second end of the first connecting rod 4232 is connected to the first end of the first light source bracket 4212. The third end of the first connecting rod 4232 is connected to the second light source bracket 4222 through the third connecting rod 4234. The second connecting rod 4233 is respectively connected to the second end of the first light source bracket 4212 and the second light source bracket 4222. In some other embodiments, the flip structure can be set as a hinge structure. The cover structure 421 and the body structure 422 can achieve the flipping movement through the hinge method to open or cover the detection position, and a limit structure is provided to limit the positions of the cover assembly before and after flipping.

[0055] In the embodiments of the present application, the cover structure 421 is arc-shaped, and the body structure 422 is C-shaped. After the cover structure 421 is turned down, it fills the gap of the body structure 422, so that the light source component 42 is circular. A semi-circular plate 4223 is further provided inside the body structure 422. The semi-circular plate 4223 is connected to the second light source bracket 4222 to increase the stability of the body structure 422. A positioning hole 4224 is provided at the center position of the semi-circular plate 4223 for positioning the sealing ring in the detection position.

[0056] Specifically, multiple second light sources 4221 of the main body structure 422 are arranged at intervals, and the interval areas form the shooting areas of the cameras 411. After the cover structure 421 is turned down, both ends of it are spaced from the main body structure 422, and the spaced areas also form the shooting areas of the cameras 411. The 4 cameras 411 are arranged at intervals along the circumferential direction of the light source assembly 42, and the shooting range of each camera 411 corresponds to the shooting area formed by the light source assembly 42. The shooting range of each camera 411 can be less than or equal to the shooting area.

[0057] Please refer to Figure 10 , which is a detection method for a large sealing ring provided by an embodiment of the present application. Using the sealing ring detection device described in any one of the above, the steps are as follows: S101: Connect the sealing ring to the operating mechanism.

[0058] In step S101, the colloid of the sealing ring is manually placed into the first guide wheel, the first driving wheel, the second driving wheel, and the second guide wheel in sequence.

[0059] S102: Input the number of shootings and / or the number of movements.

[0060] In step S102, according to the total length of the sealing ring and the shooting range of the camera, the number of shootings and / or the number of movements can be input on the control system through the control device. The total length of the sealing ring is determined during production, and the shooting range of the camera is also determined when purchased. Divide the total length of the sealing ring by the size of the shooting range to obtain the number of shootings and the number of movements. By setting the number of movements and / or the number of shootings, the positions in the length direction of the sealing ring can be detected, avoiding missed detections and at the same time not causing repeated detections, thereby improving the detection efficiency.

[0061] S103: Move the movable cover structure to cover the detection position.

[0062] In step S103, the cover structure is turned down by the gas spring to cover the detection position, so that the detection area forms an annular shape, and the sealing ring can be detected comprehensively.

[0063] S104: Shoot the image of the colloid at the detection position, and move the shot colloid out of the detection position until the set number of shootings and / or the number of movements is completed.

[0064] In step S104, the control device is used to start the shooting component and the light source component to shoot and obtain an image of the local colloid of the sealing ring at the detection position. After the shooting is completed, the driving component is started to move the part that has been shot out of the detection position, and then the local colloid newly entering the detection position is shot. Repeat the execution until the set number of shootings and / or the number of movements is completed.

[0065] Specifically, before the step of covering the detection position with the movable cover structure, the following steps are further included: Control the pressure regulating mechanism to start, so that the first pressing wheel presses the sealing ring on the first driving wheel, and the second pressing wheel presses the sealing ring on the second driving wheel.

[0066] By squeezing the sealing ring on the driving wheel through the pressure regulating mechanism, the sealing ring at the detection position can be tightened and stabilized, and its synchronous transmission with the driving wheel is ensured.

[0067] Before the pressure regulating mechanism is started, the distances between the first driving wheel and the first pressing wheel and between the second driving wheel and the second pressing wheel can also be adjusted respectively according to the material and wire diameter of the large sealing ring.

[0068] Since different materials and wire diameters of the sealing ring require different pressures, it is necessary to adjust the relative distance between the driving wheel and the pressing wheel through the pressure regulating mechanism according to different materials and wire diameters to adapt to different types of sealing rings.

[0069] After the sealing ring detection work is completed, control the cover structure to turn up, open the detection position, loosen the pressing wheel, take out the detected sealing ring, put in a new sealing ring to be detected, adjust the positions of the pressing wheel and the driving wheel according to the material and size of the sealing ring to be detected, and conduct a new detection.

[0070] Embodiment 2: Please refer to Figure 11 , which is a schematic diagram of another operating mechanism and pressure regulating mechanism provided by the second embodiment of the present application. The difference from the first embodiment is that the two driving wheels 611 and the two pressing wheels 621 are vertically arranged, and the axial direction is perpendicular to the moving direction of the sealing ring. The driving wheel 611 is directly key-connected to the rotating motor 612 without transmission through a synchronous belt. The pressure regulating mechanism includes a stepping motor 622 and a guide rod 623, and the pressing wheel 621 is driven by the stepping motor 622 to move away from or close to the corresponding driving wheel 611 to achieve more precise control.

[0071] It should be understood that although the steps in the flowchart of the drawings are sequentially shown according to the indication of the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless there is a clear indication in this article, the execution of these steps has no strict order limit and can be executed in other orders.

[0072] The above are all the preferred embodiments of the present application. Without restricting the protection scope of the present application based on this, therefore: All equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A detection device for a large sealing ring, characterized in that, Including: A running mechanism (3), including a first driving wheel (3211) and a second driving wheel (3221), which are used to connect with the sealing ring and move the sealing ring in a predetermined direction, so that all positions of the sealing ring pass through the detection position in sequence during the movement; A detection mechanism (4), which is used to obtain an image of the local colloid of the sealing ring within the detection position for detection. The detection mechanism (4) includes a plurality of cameras (411) and a light source assembly (42). The shooting ranges of the plurality of cameras (411) correspond to the detection position. The moving distance of the sealing ring each time matches the shooting range. The plurality of cameras (411) are arranged at intervals along the circumferential direction of the detection position; The light source assembly (42) includes a cover structure (421) and a body structure (422) both provided with light sources. The cover structure (421) is movably connected to the body structure (422). The cover structure (421) is used to open or cover the detection position. When the detection position is covered, the light source covers the circumferential surface of the local colloid.

2. The detection device for the large sealing ring according to claim 1, wherein, The first driving wheel (3211) is provided with a first positioning portion (3214), the second driving wheel (3221) is provided with a second positioning portion, the sealing ring is connected to the first positioning portion (3214) and the second positioning portion, and the detection position is located between the first driving wheel (3211) and the second driving wheel.

3. The detection device for large sealing rings according to claim 1, characterized in that, The running mechanism (3) includes a guiding assembly (33), and the guiding assembly (33) is used to guide the sealing ring before it enters the detection position and after it exits the detection position.

4. The detection device for large sealing rings according to claim 2, characterized in that, The running mechanism (3) includes a first pressing wheel (3611) and a second pressing wheel (3631). The first pressing wheel (3611) is opposite to the first driving wheel (3211), and the second pressing wheel (3631) is opposite to the second driving wheel (3221), and respectively press the sealing ring located at the first positioning portion (3214) and the second positioning portion.

5. The detection device for large sealing rings according to claim 4, characterized in that, It further includes a pressure regulating mechanism (5). The pressure regulating mechanism (5) includes a first pressure regulating component (51) and a second pressure regulating component. The first pressure regulating component (51) is used to adjust the distance between the first driving wheel (3211) and the first pressing wheel (3611), and the second pressure regulating component is used to adjust the distance between the second driving wheel (3221) and the second pressing wheel (3631).

6. The detection device for the large sealing ring according to claim 5, characterized in that, The pressure regulating mechanism (5) further includes a third pressure regulating component (52) and a fourth pressure regulating component. The third pressure regulating component (52) and the fourth pressure regulating component are respectively used to adjust the pressure applied by the first pressing wheel (3611) and the second pressing wheel (3631) on the sealing ring.

7. The detection device for large sealing rings according to claim 1, characterized in that, The detection mechanism (4) includes a flip cover structure (423). The cover structure (421) is turned up and down through the flip cover structure (423). When the cover structure (421) is turned up, the detection position is opened. When the cover structure (421) is turned down, the detection position is covered.

8. The detection device for a large sealing ring according to claim 7, characterized in that, The flip structure (423) includes a gas spring (4231), a first connecting rod (4232), a second connecting rod (4233), and a third connecting rod (4234). One end of the gas spring (4231) is connected to the frame (1), and the other end is connected to the first end of the first connecting rod (4232). The second end of the first connecting rod (4232) is connected to the cover structure (421). The third end of the first connecting rod (4232) is connected to the body structure (422) through the third connecting rod (4234). The second connecting rod (4233) is connected to the cover structure (421) and the body structure (422) respectively.

9. The detection device for large sealing rings according to claim 1, characterized in that, The cover structure (421) is arc-shaped, the body structure (422) is C-shaped, and after the cover structure (421) is turned down, the light source assembly (42) is circular.

10. A detection method for a large sealing ring, applying the sealing ring detection device according to any one of claims 1-9, comprising the steps of: Connect the sealing ring to the moving mechanism; Input the number of shooting times and / or the number of moving times; Move the movable cover structure to cover the detection position; Shoot an image of the colloid at the detection position, and move the shot colloid out of the detection position until the set number of shooting times and / or the number of moving times is completed.

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