High-speed image defect acquisition and detection device based on line scanning camera and detection method thereof

Abstract

The invention provides a high-speed image defect collecting and detecting device based on a line scanning camera and a detecting method thereof, and relates to the technical field of line scanning cameras, the high-speed image defect collecting and detecting device comprises a supporting frame, a supporting frame and an adjusting mechanism, the adjusting mechanism is arranged on the upper end surface of the supporting frame, and the supporting frame is fixedly connected with the surface of the supporting frame through the adjusting mechanism; a camera box and a power source box are arranged on the inner wall of the supporting frame, the adjusting mechanism comprises a lifting frame, the inner walls of the two ends of the lifting frame slidably penetrate through the arc face of the supporting frame, one end of the lifting frame is fixedly connected with a mounting frame, and the inner wall of the mounting frame is fixedly connected with a servo motor. The magnetic powder crack detection device solves the problems that in an automatic production line, a line scanning camera can be used for detecting defects on the surface of a product and judging the position and direction of the product, and due to the fact that a common line scanning camera cannot conduct lifting adjustment on the position, magnetic powder crack detection operation cannot be conveniently conducted on products of different height sizes.

Description

Technical Field

[0001] The present invention relates to the technical field of line scan cameras, and particularly to a high-speed image defect acquisition and detection device based on a line scan camera and a detection method thereof. Background Art

[0002] In magnetic particle inspection, a line scan camera is mainly used to capture images formed by the aggregation of magnetic particles, so as to accurately identify defects. Different from traditional single-frame image cameras, a line scan camera obtains images by scanning line by line, and is suitable for high-precision and high-speed detection applications. A high-speed image defect acquisition and detection device based on a line scan camera and a detection method thereof are usually used for quality control and defect detection on high-speed production lines. This device can scan the surface of an object using a line scan camera, and combined with high-speed acquisition and processing technologies, can detect defects or abnormalities on the surface of the object in real time, which is relatively common in daily life.

[0003] Existing technologies such as the invention with the publication number CN102636436B disclose a machine vision detection device and method based on a line scan camera. This patent includes a driving roller, a first encoder, and a line scan camera. The first encoder is installed on the driving roller, and the driving roller drives the first encoder to generate a first encoder pulse signal through rotation. The resolution of the first encoder is K1, and the encoder resolution required to trigger the line scan camera to acquire an image is K. When the first encoder pulse signal does not meet the resolution requirement for triggering the line scan camera to acquire an image, the detection device further includes a servo motor and a second encoder. The resolution of the second encoder is K2, where the second encoder is installed on the servo motor. The first encoder pulse signal triggers the servo motor to rotate, and the servo motor controller makes the rotation speed ratio of the servo motor and the driving roller be α. The servo motor drives the second encoder to generate a second encoder pulse signal through rotation. Compared with the prior art, the present invention can use ordinary encoders available on the market to meet the resolution requirement for triggering the line scan camera to acquire an image, with a simple structure and low cost.

[0004] In daily use, it is found that in an automated production line, a line scan camera can be used to detect defects on the surface of a product, judge the position and orientation of the product, etc. Since a general line scan camera cannot perform lifting adjustment of the position, it further leads to the problem that it is inconvenient to perform magnetic particle crack detection operations on products with different height dimensions. Summary of the Invention

[0005] The object of the present invention is to solve the defect in the prior art that in an automated production line, a line scan camera can be used to detect defects on the surface of a product, judge the position and orientation of the product, etc. Since a general line scan camera cannot perform lifting adjustment of the position, it further leads to the problem that it is inconvenient to perform magnetic particle crack detection operations on products with different height dimensions.

[0006] To achieve the above object, the present invention adopts the following technical solutions: A high-speed image defect acquisition and detection device based on a line scan camera and its detection method, including a support frame, a support frame and an adjustment mechanism, characterized in that: the adjustment mechanism is arranged on the upper surface of the support frame, the support frame is fixedly connected to the surface of the support frame by means of the adjustment mechanism, the inner walls of the support frame are respectively provided with a camera box and a power supply box, the camera box includes a camera body for detecting product surface defects, judging the position and direction of the product, the camera body is located in the middle of the camera box, the lower surface of the camera body is fixedly connected to the bottom end of the inner wall of the camera box, ultraviolet lamp modules are fixedly connected to both sides of the inner wall of the camera box, baffles for blocking the interference of the light of the ultraviolet lamp module on the camera lens are fixedly connected to the positions corresponding to both sides of the camera body on the inner wall of the camera box, a heat dissipation aluminum row for dissipating the heat of the ultraviolet lamp module is fixedly connected to the surface of the ultraviolet lamp module, two heat dissipation fans are fixedly connected to one side of the camera box, a condenser cylindrical lens for forming a high-brightness light band with sufficient ultraviolet illuminance by the light emitted by the ultraviolet lamp module is fixedly connected to the positions corresponding to both sides of the camera body on the surface of the camera box, a power supply plug and a gigabit network port are respectively arranged on one side surface of the camera box, the power supply box includes a power switch, an ultraviolet lamp power supply is fixedly connected to the inside of the power supply box, a camera power supply and a fan power supply are respectively fixedly connected to one side of the inner wall of the power supply box, and a power input port and a power supply output interface are respectively arranged on the side of the power supply box away from the power switch.

[0007] The effects achieved by the above components are as follows: In an automated production line, a line scan camera can be used to detect product surface defects, judge the position and direction of products, etc. Since the line scan camera can only capture a row of pixels with a width of 1 pixel at the same time, and the object being photographed is moving at a high speed, the exposure time of the camera usually needs to be adjusted to a very low state. Then, a sufficiently bright light is required for lighting. At this time, the light emitted by the 365nm ultraviolet lamp COB module forms a high-ultraviolet-illuminance banded light after passing through the condenser cylindrical lens to meet the light source requirements of the line scan camera.

[0008] Preferably, the adjusting mechanism includes a lifting frame. The inner walls at both ends of the lifting frame slidably penetrate through the arc surfaces of the support frame. One end of the lifting frame is fixedly connected to a mounting frame. The inner wall of the mounting frame is fixedly connected to a servo motor. The output end of the servo motor is fixedly connected to a gear. A rack is fixedly connected to the side wall surface of the support frame corresponding to the position of the servo motor. The tooth surface of the rack meshes with the tooth surface of the gear. The other end of the lifting frame is fixedly connected to a limiting frame. A limiting plate is slidably connected to the inner wall of the limiting frame. One end of the limiting plate is fixedly connected to the surface of the lifting frame. A connecting plate is fixedly connected to the surface of the limiting plate. A plurality of tooth blocks are fixedly connected to the side wall of the limiting frame. A sliding rod slidably penetrates through the inner wall at one end of the connecting plate. One end of the sliding rod close to the tooth block is fixedly connected to a pressing plate. The cross section of the pressing plate is in the shape of a conical tooth. A spring is sleeved on the arc surface of the sliding rod. The two ends of the spring are respectively fixedly connected to the pressing plate and the connecting plate.

[0009] The effects achieved by the above components are as follows: In an automated production line, a line scan camera can be used to detect defects on the product surface, judge the position and orientation of the product, etc. At this time, in order to facilitate the detection of magnetic powder by means of the camera box in the support frame, the adjusting mechanism provided on the surface of the support frame can be used for assistance, which can effectively adjust the position of the support frame up and down, so that the camera box can perform better detection operations. Preferably, a fixing plate is fixedly connected to the bottom surface of the support frame. A driving rod is rotatably connected to the surface of the fixing plate. The upper arc surface of the driving rod threadedly penetrates through the surface of the lifting frame.

[0010] The effects achieved by the above components are as follows: When limiting the position between the entire lifting frame and the support frame, the position of the lifting frame can be adjusted by the driving rod on the surface of the support frame, which helps to further move the position of the support frame.

[0011] Preferably, a guiding frame is fixedly connected to one side surface of the mounting frame. A guiding plate slidably penetrates through the inner wall of the guiding frame. One side of the guiding plate is fixedly connected to the surface of the rack.

[0012] The effects achieved by the above components are as follows: When sliding and lifting the camera box in the support frame, the guiding frame on one side of the mounting frame and the guiding plate fixed to the surface of the rack can be used for guiding and protection to prevent the support frame from shifting during movement.

[0013] Preferably, a friction pad is fixedly connected to the surface of the tooth block. The friction pad is a rubber pad.

[0014] The effects achieved by the above components are as follows: By using the pressing plate with a cross section in the shape of a conical tooth to be clamped and fixed with the friction pad made of rubber material on the surface of the tooth block, the friction can be further increased, which is convenient for better fixing and limiting the support frame.

[0015] Preferably, an anti - detachment mechanism is provided at the position of the camera box surface corresponding to the power supply plug. The anti - detachment mechanism includes a connecting frame. The lower surface of the connecting frame is fixedly connected to the surface of the camera box. A rotating plate is rotatably connected to the inner wall of the connecting frame. The cross - section of the rotating plate is in an "L" shape. A protective frame is fixedly connected to the upper end of the rotating plate. The cross - section of the protective frame is semi - circular. A rotating plate is slidably connected to the inner wall of the protective frame. A sliding groove is provided on the upper surface of the protective frame. A moving rod is slidably connected to the inner wall of the sliding groove. The bottom end of the moving rod is fixedly connected to the surface of the rotating plate. A fixed shaft is threadedly connected to the arc surface of the moving rod. A protective pad is fixedly connected to the inner arc surface of the rotating plate.

[0016] The effect achieved by the above components is that when operating the power supply plug, the plug data cable is electrically connected to the power supply plug. At this time, in order to prevent the plug data cable from falling off, the anti - detachment mechanism on the surface of the camera box can be used for protection, which helps to further protect the plug during operation.

[0017] Preferably, coil springs are sleeved on both ends of the inner arc surface of the connecting frame. The two ends of the coil spring are respectively fixedly connected to the rotating plate and the connecting frame.

[0018] The effect achieved by the above components is that the torsional force generated by the coil spring can regulate, squeeze and fix the position of the rotating plate, preventing the rotating plate from excessively shaking and shifting in position.

[0019] Preferably, a positioning mechanism is provided at the position of the bottom surface of the inner wall of the support frame corresponding to the power supply box. The positioning mechanism includes two connecting blocks. The two connecting blocks are respectively located on both sides of the power supply box. One end of the connecting block is fixedly connected to the side wall of the power supply box. Connecting grooves are provided on both side surfaces of the connecting block. A positioning frame is fixedly connected to the surface of the support frame corresponding to the connecting groove. An adjusting plate is slidably penetrated through the inner wall of the positioning frame. The cross - section of the adjusting plate is in an "L" shape. The short arm end of the adjusting plate abuts against the side wall of the positioning frame. An adjusting column is fixedly connected to the surface of the adjusting plate close to the connecting groove. A limiting groove is provided on the surface of the adjusting plate. A positioning shaft is threadedly penetrated through the surface of the positioning frame. The bottom end of the positioning shaft abuts against the bottom surface of the inner wall of the limiting groove.

[0020] The effect achieved by the above components is that during the process of placing the power supply box in the support frame, the positioning mechanism provided in the support frame can effectively squeeze and fix the entire power supply box, preventing the power supply box from shifting and falling off.

[0021] Preferably, the same connecting ring is sleeved on the arc surfaces of the two adjusting columns. A positioning ring is threadedly connected to the arc surface of the adjusting column. The bottom end of the positioning ring abuts against the surface of the connecting ring.

[0022] The effects achieved by the above components are as follows: When limiting the movement of the position of the adjusting plate, docking and limiting protection can be achieved by means of the connecting ring and the adjusting column, which helps to better fix and use the power supply box.

[0023] Preferably, the high-speed image defect acquisition and detection device based on a line-scan camera and its detection method include the following steps: S1. First, place the entire camera box and the power supply box in the support frame installed on one side of the support frame, position and protect the positions of the entire camera box and the power supply box, and then use the adjustment mechanism provided on the surface of the support frame to lift and lower the position of the entire support frame, so that the camera box can perform magnetic particle detection on the products in the automated production line; S2. When protecting the position of the power supply box in the support frame, fix it by extrusion through the positioning mechanism. Pull the adjusting plate in the positioning frame on the inner wall surface of the support frame, insert the adjusting plate into the connecting groove opened on the surface of the connecting block on the side wall of the power supply box, and then rotate the positioning shaft on the surface of the positioning frame to squeeze and fix the position of the entire adjusting plate, so as to fix and protect the position of the entire power supply box; S2. After placing the camera box and the power supply box in the support frame, they will be docked by means of a plug data cable. At this time, in order to prevent the plug data cable from falling off, the anti-disconnection mechanism is used for protection. When the power supply plug is docked, rotate the rotating plate in the connection frame on the side wall of the camera box, and at the same time deflect the position of the rotating plate in the protective frame at the upper end of the rotating plate, so that the rotating plate slides and is limited along the chute by means of the moving rod, and the rotating plate and the protective frame cover and limit the plug end of the entire data cable, and then rotate and squeeze and fix the fixed shaft on the arc surface of the moving rod.

[0024] S2. During the lifting and lowering process of the position of the support frame, first rotate the driving rod at the bottom end of the support frame to drive the movement and adjustment of the position of the lifting frame at the upper end of the support frame, and then start the servo motor in the mounting frame on one side of the lifting frame to drive the relative rotation of the rack and the gear on the side wall of the support frame. At this time, let the other side of the support frame slide relative to the limit plate fixed on the surface of the lifting frame by means of the limit frame, and after reaching the specified position, pull the pressing plate on one side of the limit frame to be clamped and fixed with the tooth block fixed on the side wall of the limit frame for limiting.

[0025] Compared with the prior art, the advantages and positive effects of the present invention are as follows: 1. In the present invention, by setting the adjustment mechanism, the position of the entire support frame can be adjusted up and down, so that the camera box placed in the support frame can move its position, which is convenient for lifting the camera box at different heights and helps to better perform magnetic particle flaw detection crack acquisition and detection operations.

[0026] 2. In the present invention, by providing an anti - detachment mechanism, the power supply plug used on the side wall of the camera box can be protected to avoid the plug from falling off during use. With the rotational limit between the rotating plate and the protective frame, the anti - detachment operation of the plug can be effectively and quickly carried out.

[0027] 3. In the present invention, by providing a positioning mechanism, the power supply box placed at the bottom end of the inner wall of the support frame can be squeezed and fixed, effectively avoiding the situation that the power supply box loosens and falls during the lifting process of the support frame. With the insertion and fixation of the adjusting plate into the connection groove opened on the surface of the fixed connection block on the side wall of the power supply box, it helps to further carry out the squeezing and fixing protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the internal structure of the camera box of the high - speed image defect acquisition and detection device and its detection method based on a line - scan camera proposed by the present invention; Figure 2 It is for the high - speed image defect acquisition and detection device and its detection method based on a line - scan camera proposed by the present invention Figure 1 of the partial structure schematic diagram; Figure 3 It is a three - dimensional structure schematic diagram of the high - speed image defect acquisition and detection device and its detection method based on a line - scan camera proposed by the present invention; Figure 4 It is a partial structure schematic diagram of the three - dimensional structure of the high - speed image defect acquisition and detection device and its detection method based on a line - scan camera proposed by the present invention; Figure 5 It is a schematic diagram of the structure of the adjusting mechanism of the high - speed image defect acquisition and detection device and its detection method based on a line - scan camera proposed by the present invention; Figure 6 It is for the high - speed image defect acquisition and detection device and its detection method based on a line - scan camera proposed by the present invention Figure 4 of the enlarged structure schematic diagram at A; Figure 7 It is a schematic diagram of the structure of the anti - detachment mechanism of the high - speed image defect acquisition and detection device and its detection method based on a line - scan camera proposed by the present invention; Figure 8 It is a partial structure schematic diagram of the anti - detachment mechanism of the high - speed image defect acquisition and detection device and its detection method based on a line - scan camera proposed by the present invention; Figure 9 It is a schematic diagram of the structure of the positioning mechanism of the high - speed image defect acquisition and detection device and its detection method based on a line - scan camera proposed by the present invention; Figure 10 It is for the high - speed image defect acquisition and detection device and its detection method based on a line - scan camera proposed by the present invention Figure 9 of the enlarged structure schematic diagram at B; Figure 11 This is a schematic diagram of the internal structure of the power supply box of the high-speed image defect acquisition and detection device and its detection method based on a line-scan camera proposed by the present invention.

[0029] Legend: 1. Support frame; 2. Camera box; 21. Cooling fan; 22. Ultraviolet lamp module; 23. Heat dissipation aluminum row; 24. Camera body; 25. Power supply plug; 26. Gigabit network port; 27. Baffle; 28. Converging cylindrical mirror; 3. Power supply box; 31. Ultraviolet lamp power supply; 32. Fan power supply; 33. Power switch; 34. Power input port; 35. Power supply output interface; 36. Camera power supply; 4. Adjusting mechanism; 401. Fixed plate; 402. Driving rod; 403. Lifting frame; 404. Mounting frame; 405. Servo motor; 406. Gear; 407. Rack; 408. Guide frame; 409. Guide plate; 410. Limit frame; 411. Limit plate; 412. Tooth block; 413. Friction pad; 414. Extrusion plate; 415. Slide bar; 416. Connecting plate; 417. Spring; 5. Anti-disconnection mechanism; 51. Connecting frame; 52. Rotating plate; 53. Torsion spring; 54. Protection frame; 55. Chute; 56. Rotating plate; 57. Protection pad; 58. Fixed shaft; 59. Moving rod; 6. Positioning mechanism; 61. Connecting block; 62. Connecting groove; 63. Positioning frame; 64. Positioning shaft; 65. Adjusting plate; 66. Limit groove; 67. Adjusting column; 68. Positioning ring; 69. Connecting ring; 7. Support frame. Detailed implementation manners

[0030] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention will be further described below with reference to the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0031] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the present invention is not limited by the specific embodiments disclosed in the following specification.

[0032] Example 1, as Figure 1-11As shown in the figure, the present invention provides a high-speed image defect acquisition and detection device based on a line-scan camera and its detection method, including a support frame 1, a support frame 7, and an adjustment mechanism 4. The adjustment mechanism 4 is arranged on the upper surface of the support frame 1. The support frame 7 is fixedly connected to the surface of the support frame 1 by means of the adjustment mechanism 4. Inside the inner wall of the support frame 7, a camera box 2 and a power supply box 3 are respectively arranged. At the position of the camera box 2 corresponding to the power supply plug 25, an anti-disconnection mechanism 5 is provided. At the position of the inner wall bottom surface of the support frame 7 corresponding to the power supply box 3, a positioning mechanism 6 is provided. The camera box 2 includes a camera body 24, and the camera body 24 is located in the middle inside the camera box 2. The lower surface of the camera body 24 is fixedly connected to the bottom end of the inner wall of the camera box 2. On both sides of the camera body 24 corresponding to the inner wall of the camera box 2, baffles 27 are fixedly connected. On both sides of the inner wall of the camera box 2, ultraviolet lamp modules 22 are fixedly connected. On the surface of the ultraviolet lamp modules 22, heat dissipation aluminum fins 23 are fixedly connected. On one side of the camera box 2, two heat dissipation fans 21 are fixedly connected. At the positions on both sides of the camera body 24 corresponding to the surface of the camera box 2, condenser cylindrical lenses 28 are fixedly connected. On one side surface of the camera box 2, a power supply plug 25 and a gigabit network port 26 are respectively arranged. The power supply box 3 includes a power switch 33. Inside the power supply box 3, an ultraviolet lamp power supply 31 is fixedly connected. On one side of the inner wall of the power supply box 3, a camera power supply 36 and a fan power supply 32 are respectively fixedly connected. On one side of the surface of the power supply box 3 away from the power switch 33, a power input port 34 and a power supply output interface 35 are respectively arranged; Among them, the light emitted by the ultraviolet lamp module 22 forms a strip of light with a sufficiently high ultraviolet illuminance after passing through the condenser cylindrical lens 28 to meet the light source requirements of the line-scan camera body 24; The heat dissipation aluminum fins 23 dissipate the heat of the ultraviolet lamp module to the housing and the internal space, and then are discharged by the heat dissipation fans 21; The baffle 27 is used to block the interference of the light emitted by the ultraviolet lamp module 22 on the lens of the camera body 24 and prevent dust from entering the range of the camera lens, affecting the shooting effect; The camera body 24, the ultraviolet lamp module 22, and the heat dissipation fans 21 are respectively powered by three switching power supplies in the power supply box 3. The camera body 24 is connected to an industrial computer through the gigabit network port 26 on the housing for data transmission of the acquired images; The combination of the camera body 24 and the ultraviolet lamp module 22 is specifically used for collecting magnetic particle inspection cracks, and then the software is used to intelligently identify the position and size of the cracks, etc.; The ultraviolet lamp module 22 is specifically configured with a condenser lens to enhance the intensity of the ultraviolet lamp. The illuminance of a normal ultraviolet lamp is only 3000 - 6000 UW / cm² according to the standard, which the camera simply cannot recognize. To solve this problem, we added a customized lens to the ultraviolet lamp module 22, increasing the ultraviolet illuminance to 75000 UW / cm². The image processing of the prior art refers to software, and their cameras are area array cameras, while line array cameras cannot be used at all. Our innovation is to technically upgrade the ultraviolet lamp module and then adopt a line array camera.

[0033] Next, specifically describe the specific settings and functions of its adjusting mechanism 4, anti - detachment mechanism 5, and positioning mechanism 6.

[0034] As Figure 2 、 Figure 3 and Figure 4 shown, the adjusting mechanism 4 includes a lifting frame 403. The inner walls at both ends of the lifting frame 403 slide through the arc surface of the support frame 1. One end of the lifting frame 403 is fixedly connected with a mounting frame 404. The inner wall of the mounting frame 404 is fixedly connected with a servo motor 405. The output end of the servo motor 405 is fixedly connected with a gear 406. A rack 407 is fixedly connected to the side wall surface of the support frame 7 corresponding to the position of the servo motor 405. The tooth surface of the rack 407 meshes with the tooth surface of the gear 406. The other end of the lifting frame 403 is fixedly connected with a limiting frame 410. A limiting plate 411 is slidably connected to the inner wall of the limiting frame 410. One end of the limiting plate 411 is fixedly connected to the surface of the lifting frame 403. A connecting plate 416 is fixedly connected to the surface of the limiting plate 411. A number of tooth blocks 412 are fixedly connected to the side wall of the limiting frame 410. A sliding rod 415 slides through the inner wall at one end of the connecting plate 416. One end of the sliding rod 415 close to the tooth block 412 is fixedly connected with a pressing plate 414. The cross - section of the pressing plate 414 is in the shape of a tapered tooth. A spring 417 is sleeved on the arc surface of the sliding rod 415. The two ends of the spring 417 are respectively fixedly connected with the pressing plate 414 and the connecting plate 416. A fixing plate 401 is fixedly connected to the bottom surface of the support frame 1. A driving rod 402 is rotatably connected to the surface of the fixing plate 401. The upper arc surface of the driving rod 402 threadedly penetrates through the surface of the lifting frame 403. A guiding frame 408 is fixedly connected to one side surface of the mounting frame 404. A guiding plate 409 slides through the inner wall of the guiding frame 408. One side of the guiding plate 409 is fixedly connected to the surface of the rack 407. A friction pad 413 is fixedly connected to the surface of the tooth block 412. The friction pad 413 is a rubber pad.

[0035] As Figure 5 and Figure 6As shown in the figure, the anti-falling mechanism 5 includes a connecting frame 51. The lower surface of the connecting frame 51 is fixedly connected to the surface of the camera box 2. A rotating plate 52 is rotatably connected to the inner wall of the connecting frame 51. The cross-section of the rotating plate 52 is in the shape of an "L". A protective frame 54 is fixedly connected to the upper end of the rotating plate 52. The cross-section of the protective frame 54 is semi-circular. A rotating plate 56 is slidably connected to the inner wall of the protective frame 54. A sliding groove 55 is formed on the upper surface of the protective frame 54. A moving rod 59 is slidably connected to the inner wall of the sliding groove 55. The bottom end of the moving rod 59 is fixedly connected to the surface of the rotating plate 56. A fixed shaft 58 is threadedly connected to the arc surface of the moving rod 59. A protective pad 57 is fixedly connected to the inner arc surface of the rotating plate 56. Coil springs 53 are sleeved on both ends of the inner arc surface of the connecting frame 51. The two ends of the coil spring 53 are fixedly connected to the rotating plate 52 and the connecting frame 51 respectively.

[0036] As Figure 7 and Figure 8 shown in the figure, the positioning mechanism 6 includes two connecting blocks 61. The two connecting blocks 61 are respectively located on both sides of the power supply box 3. One end of the connecting block 61 is fixedly connected to the side wall of the power supply box 3. Connecting grooves 62 are formed on both side surfaces of the connecting block 61. A positioning frame 63 is fixedly connected to the surface of the support frame 7 corresponding to the position of the connecting groove 62. An adjusting plate 65 is slidably penetrated through the inner wall of the positioning frame 63. The cross-section of the adjusting plate 65 is in the shape of an "L". The short arm end of the adjusting plate 65 abuts against the side wall of the positioning frame 63. An adjusting column 67 is fixedly connected to the surface of the adjusting plate 65 close to the connecting groove 62. A limiting groove 66 is formed on the surface of the adjusting plate 65. A positioning shaft 64 is threadedly penetrated through the surface of the positioning frame 63. The bottom end of the positioning shaft 64 abuts against the bottom surface of the inner wall of the limiting groove 66. The same connecting ring 69 is sleeved on the arc surfaces of the two adjusting columns 67. A positioning ring 68 is threadedly connected to the arc surface of the adjusting column 67. The bottom end of the positioning ring 68 abuts against the surface of the connecting ring 69.

[0037] Its overall working principle is as follows. During the process of lifting and lowering the position of the support frame 7, first rotate the driving rod 402 on the surface of the fixed plate 401 at the bottom end of the support frame 1, so that the driving rod 402 drives the movement regulation of the position of the lifting frame 403 at the upper end of the support frame 1. Then, start the servo motor 405 in the mounting frame 404 on one side of the lifting frame 403, so that the servo motor 405 drives the relative rotation of the rack 407 on the side wall of the support frame 7 and the gear 406. At this time, the other side of the support frame 7 will slide relatively with the limiting plate 411 fixed on the surface of the lifting frame 403 by means of the limiting frame 410. At the same time, the guiding frame 408 fixed on one side of the mounting frame 404 will slide and limit the guiding plate 409 fixed on the surface of the rack 407, so that the entire support frame 7 cannot deviate in position during the movement process. After reaching the specified position, pull the sliding rod 415 that slides through the surface of one end of the connecting plate 416, so that the sliding rod 415 drives the pressing plate 414 on one side of the limiting frame 410 to be clamped and fixed with the tooth block 412 fixed on the side wall of the limiting frame 410. At the same time, the position of the pressing plate 414 is squeezed and fixed by the extrusion force generated by the spring 417. At this time, the position of the entire support frame 7 will be fixed, and the position of the camera box 2 can be moved and regulated.

[0038] After placing the camera box 2 and the power supply box 3 in the support frame 7, they will be docked by means of a plug data cable. At this time, in order to prevent the plug data cable from falling off, the anti-disconnection mechanism 5 is used for protection. When the power supply plug 25 is docked, rotate the rotating plate 52 in the connecting frame 51 on the side wall of the camera box 2, and at the same time deflect the position of the rotating plate 56 in the protective frame 54 at the upper end of the rotating plate 52, so that the rotating plate 56 slides and limits along the sliding groove 55 by means of the moving rod 59, so that the rotating plate 56 and the protective frame 54 cover and protect and limit the surface of the plug end of the entire data cable. Then, rotate and squeeze and fix the fixed shaft 58 on the arc surface of the moving rod 59, and at the same time, the position of the rotating plate 52 is squeezed by the torsional force generated by the torsion spring 53 in the connecting frame 51 to prevent the rotating plate 52 from performing excessive shaking operations.

[0039] When protecting the position of the power supply box 3 in the support frame 7, it is squeezed and fixed by the positioning mechanism 6. Pull the adjusting plate 65 in the positioning frame 63 on the inner wall surface of the support frame 7, so that the adjusting plate 65 is inserted into the connecting groove 62 opened on the surface of the connecting block 61 on the side wall of the power supply box 3. Then, rotate the positioning shaft 64 on the surface of the positioning frame 63, so that the positioning shaft 64 squeezes the bottom end of the inner wall of the sliding groove 55 opened on the surface of the adjusting plate 65, so that the position of the entire adjusting plate 65 is fixed. Then, sleeved and positioned the connecting ring 69 with the adjusting column 67 on the surface of one end of the adjusting plate 65, and then rotate the positioning ring 68 on the arc surface of the adjusting column 67 for threaded docking and fixing, so that the position of the entire connecting ring 69 cannot move and fall off, so that the position of the entire power supply box 3 is fixed and protected.

[0040] The above are only the preferred embodiments of the present invention, and do not limit the present invention in other forms. Any person skilled in the art may use the technical content disclosed above to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A high-speed image defect acquisition and detection device based on a line-scan camera, comprising a support frame (1), a support box (7) and an adjustment mechanism (4), characterized in that: The adjustment mechanism (4) is arranged on the upper surface of the support frame (1). The support frame (7) is fixedly connected to the surface of the support frame (1) by means of the adjustment mechanism (4). The inner walls of the support frame (7) are respectively provided with a camera box (2) and a power supply box (3). The camera box (2) includes a camera body (24) for detecting surface defects of products, judging the position and direction of products. The camera body (24) is located in the middle of the interior of the camera box (2). The lower surface of the camera body (24) is fixedly connected to the bottom end of the inner wall of the camera box (2). Ultraviolet lamp modules (22) are fixedly connected to both sides of the inner wall of the camera box (2). Baffles (27) for blocking the interference of the light of the ultraviolet lamp modules (22) on the camera lens are fixedly connected to the positions on both sides of the inner wall of the camera box (2) corresponding to the camera body (24). A heat dissipation aluminum row (23) for dissipating the heat of the ultraviolet lamp modules (22) is fixedly connected to the surface of the ultraviolet lamp modules (22). Two heat dissipation fans (21) are fixedly connected to one side of the camera box (2). Condensing cylindrical mirrors (28) for forming a high-light band with sufficient ultraviolet illuminance from the light emitted by the ultraviolet lamp modules (22) are fixedly connected to the positions on both sides of the surface of the camera box (2) corresponding to the camera body (24). A power supply plug (25) and a gigabit network port (26) are respectively arranged on one side surface of the camera box (2). The power supply box (3) includes a power switch (33). An ultraviolet lamp power supply (31) is fixedly connected to the inside of the power supply box (3). A camera power supply (36) and a fan power supply (32) are respectively fixedly connected to one side of the inner wall of the power supply box (3). A power input port (34) and a power supply output interface (35) are respectively arranged on one side of the surface of the power supply box (3) away from the power switch (33).

2. The high-speed image defect acquisition and detection device based on a line-scan camera according to claim 1, characterized in that: The adjusting mechanism (4) includes a lifting frame (403). The inner walls at both ends of the lifting frame (403) slidably penetrate through the arc surface of the support frame (1). One end of the lifting frame (403) is fixedly connected with a mounting frame (404). The inner wall of the mounting frame (404) is fixedly connected with a servo motor (405). The output end of the servo motor (405) is fixedly connected with a gear (406). A rack (407) is fixedly connected to the side wall surface of the support frame (7) corresponding to the position of the servo motor (405). The tooth surface of the rack (407) meshes with the tooth surface of the gear (406). The other end of the lifting frame (403) is fixedly connected with a limiting frame (410). A limiting plate (411) is slidably connected to the inner wall of the limiting frame (410). One end of the limiting plate (411) is fixedly connected with the surface of the lifting frame (403). A connecting plate (416) is fixedly connected to the surface of the limiting plate (411). A plurality of tooth blocks (412) are fixedly connected to the side wall of the limiting frame (410). A sliding rod (415) slidably penetrates through one end inner wall of the connecting plate (416). One end of the sliding rod (415) close to the tooth block (412) is fixedly connected with a pressing plate (414). The cross section of the pressing plate (414) is in the shape of a tapered tooth. A spring (417) is sleeved on the arc surface of the sliding rod (415). The two ends of the spring (417) are respectively fixedly connected with the pressing plate (414) and the connecting plate (416).

3. The high-speed image defect acquisition and detection device based on a line-scan camera according to claim 2, wherein: A fixing plate (401) is fixedly connected to the bottom surface of the support frame (1). A driving rod (402) is rotatably connected to the surface of the fixing plate (401). The upper arc surface of the driving rod (402) threadedly penetrates through the surface of the lifting frame (403).

4. The high-speed image defect acquisition and detection device based on a line scan camera according to claim 3, wherein: A guiding frame (408) is fixedly connected to one side surface of the mounting frame (404). A guiding plate (409) slidably penetrates through the inner wall of the guiding frame (408). One side of the guiding plate (409) is fixedly connected with the surface of the rack (407).

5. The high-speed image defect acquisition and detection device based on a line-scan camera according to claim 4, wherein: A friction pad (413) is fixedly connected to the surface of the tooth block (412). The friction pad (413) is a rubber pad.

6. The high-speed image defect acquisition and detection device based on a line-scan camera according to claim 5, characterized in that: A detachable prevention mechanism (5) is provided at a position on the surface of the camera box (2) corresponding to the power supply plug (25). The detachable prevention mechanism (5) includes a connection frame (51). The lower surface of the connection frame (51) is fixedly connected to the surface of the camera box (2). A rotating plate (52) is rotatably connected to the inner wall of the connection frame (51). The cross-section of the rotating plate (52) is in an "L" shape. A protective frame (54) is fixedly connected to the upper end of the rotating plate (52). The cross-section of the protective frame (54) is in a semi-circular shape. A rotating plate (56) is slidably connected to the inner wall of the protective frame (54). A sliding groove (55) is formed on the upper surface of the protective frame (54). A moving rod (59) is slidably connected to the inner wall of the sliding groove (55). The bottom end of the moving rod (59) is fixedly connected to the surface of the rotating plate (56). A fixed shaft (58) is threadedly connected to the arc surface of the moving rod (59). A protective pad (57) is fixedly connected to the inner arc surface of the rotating plate (56).

7. The high-speed image defect acquisition and detection device based on a line-scan camera according to claim 6, wherein: Both ends of the inner arc surface of the connection frame (51) are sleeved with coil springs (53). The two ends of the coil spring (53) are respectively fixedly connected to the rotating plate (52) and the connection frame (51).

8. The high-speed image defect acquisition and detection device based on a line-scan camera according to claim 7, characterized in that: A positioning mechanism (6) is provided at a position on the bottom surface of the inner wall of the support frame (7) corresponding to the power supply box (3). The positioning mechanism (6) includes two connection blocks (61). The two connection blocks (61) are respectively located on both sides of the power supply box (3). One end of the connection block (61) is fixedly connected to the side wall of the power supply box (3). Connection grooves (62) are formed on both side surfaces of the connection block (61). A positioning frame (63) is fixedly connected to the surface of the support frame (7) corresponding to the connection groove (62). An adjusting plate (65) is slidably penetrated through the inner wall of the positioning frame (63). The cross-section of the adjusting plate (65) is in an "L" shape. The short arm end of the adjusting plate (65) abuts against the side wall of the positioning frame (63). An adjusting column (67) is fixedly connected to the surface of the adjusting plate (65) close to the connection groove (62). A limiting groove (66) is formed on the surface of the adjusting plate (65). A positioning shaft (64) is threadedly penetrated through the surface of the positioning frame (63). The bottom end of the positioning shaft (64) abuts against the bottom surface of the inner wall of the limiting groove (66).

9. The high-speed image defect acquisition and detection device based on a line-scan camera according to claim 8, characterized in that: The arc surfaces of the two adjusting columns (67) are sleeved with the same connection ring (69). A positioning ring (68) is threadedly connected to the arc surface of the adjusting column (67). The bottom end of the positioning ring (68) abuts against the surface of the connection ring (69).

10. The detection method of the high-speed image defect acquisition and detection device based on the line scan camera according to any one of claims 1-9 includes the following steps: S1. First, place the entire camera box (2) and the power supply box (3) in the support frame (7) installed on one side of the support frame (1), position and protect the entire camera box (2) and the power supply box (3), and then use the adjustment mechanism (4) provided on the surface of the support frame (1) to lift and adjust the position of the entire support frame (7), so that the camera box (2) can perform magnetic particle detection on the products in the automated production line; S2. When protecting the position of the power supply box (3) in the support frame (7), it is squeezed and fixed by the positioning mechanism (6). Pull the adjustment plate (65) in the positioning frame (63) on the inner wall surface of the support frame (7) so that the adjustment plate (65) is inserted into the connection groove (62) opened on the surface of the connection block (61) on the side wall of the power supply box (3). Then rotate the positioning shaft (64) on the surface of the positioning frame (63) to squeeze and fix the position of the entire adjustment plate (65), so as to fix and protect the position of the entire power supply box (3); S3. After placing the camera box (2) and the power supply box (3) in the support frame (7), they will be docked with the help of a plug data cable. At this time, in order to prevent the plug data cable from falling off, the anti-disconnection mechanism (5) is used for protection. When the power supply plug (25) is docked, rotate the rotating plate (52) in the connection frame (51) on the side wall of the camera box (2), and at the same time deflect the position of the rotating plate (56) in the protection frame (54) at the upper end of the rotating plate (52), so that the rotating plate (56) slides and is limited along the sliding groove (55) by means of the moving rod (59), so that the rotating plate (56) and the protection frame (54) wrap and protect and limit the plug end of the entire data cable. Then rotate and squeeze and fix the fixed shaft (58) on the arc surface of the moving rod (59); S4. During the process of lifting and lowering the position of the support frame (7), first rotate the driving rod (402) at the bottom end of the support frame (1), so as to drive the movement and adjustment of the position of the lifting frame (403) at the upper end of the support frame (1). Then start the servo motor (405) in the mounting frame (404) on one side of the lifting frame (403), so that the servo motor (405) drives the relative rotation of the rack (407) and the gear (406) on the side wall of the support frame (7). At this time, the other side of the support frame (7) slides relative to the limiting plate (411) fixed on the surface of the lifting frame (403) by means of the limiting frame (410). After reaching the specified position, pull the pressing plate (414) on one side of the limiting frame (410) to be clamped and fixed with the tooth block (412) fixed on the side wall of the limiting frame (410).

Images