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

Abstract

The application provides a high-speed image defect acquisition detection device based on a line scanning camera and a detection method thereof, relates to the technical field of line scanning cameras, and comprises a support frame, a support frame and an adjusting mechanism. The adjusting mechanism is arranged on the upper end surface of the support frame, the support frame is fixedly connected with the surface of the support frame by means of the adjusting mechanism, the inner wall of the support frame is respectively provided with a camera box and a power box, the adjusting mechanism comprises a lifting frame, the inner walls of the two ends of the lifting frame are slidingly penetrated through the arc surface of the support 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 application solves the problem that the line scanning camera can be used for detecting the defects on the surface of a product, judging the position and direction of the product and the like in the automatic production line. Since the common line scanning camera cannot be adjusted in position, it is inconvenient to perform magnetic powder crack detection operation on products with different height sizes.

Description

Technical Field

[0001] This invention relates to the field of line scan camera technology, and in particular to a high-speed image defect acquisition and detection device and method based on a line scan camera. Background Technology

[0002] Line scan cameras are primarily used in magnetic particle inspection to capture images formed by aggregated magnetic particles, thereby accurately identifying defects. Unlike traditional single-frame cameras, line scan cameras acquire images through line-by-line scanning, making them suitable for high-precision, high-speed inspection applications. High-speed image acquisition and detection devices and methods based on line scan cameras are commonly used for quality control and defect detection on high-speed production lines. This device uses a line scan camera to scan the surface of an object, combined with high-speed acquisition and processing technology, to detect defects or anomalies on the object's surface in real time, and is quite common in everyday life.

[0003] Existing technologies, such as the invention with publication number CN102636436B, disclose a machine vision inspection device and method based on a line scan camera. This patent includes an active roller, a first encoder, and a line scan camera. The first encoder is mounted on the active roller, and the active roller rotates to drive the first encoder, generating a first encoder pulse signal. 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, and the second encoder is mounted on the servo motor. The first encoder pulse signal triggers the servo motor to rotate, and the servo motor controller sets the rotational speed ratio between the servo motor and the active roller to α. The servo motor rotates to drive the second encoder, generating a second encoder pulse signal. Compared to existing technologies, this invention can use commercially available ordinary encoders to meet the resolution requirements for triggering the line scan camera to acquire an image, resulting in a simple structure and low cost.

[0004] In daily use, it has been found that in automated production lines, line scan cameras can be used to detect defects on the surface of products and determine the position and orientation of products. However, since ordinary line scan cameras cannot be adjusted in height, it is inconvenient to perform magnetic particle crack detection on products of different heights and sizes. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies in automated production lines, where line scan cameras can be used to detect defects on the surface of products and determine the position and orientation of products. However, since conventional line scan cameras cannot be adjusted in height, it is inconvenient to perform magnetic particle crack detection on products of different heights and dimensions.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a high-speed image defect acquisition and detection device and its detection method based on a line scan camera, comprising a support frame, a support frame, and an adjustment mechanism, characterized in that: the adjustment mechanism is disposed 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; a camera box and a power supply box are respectively disposed on the inner wall of the support frame; the camera box includes a camera body for detecting product surface defects and determining the product position and orientation; 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; and [other components] are fixedly connected to the inner wall of the camera box at positions corresponding to both sides of the camera body. A baffle is used to block the light from the ultraviolet lamp module from interfering with the camera lens. The surface of the ultraviolet lamp module is fixedly connected to a heat dissipation aluminum radiator for dissipating heat from the ultraviolet lamp module. Two cooling fans are fixedly connected to one side of the camera box. A focusing cylindrical lens is fixedly connected to the surface of the camera box at a position corresponding to both sides of the camera body to form a light band with sufficient ultraviolet illuminance emitted by the ultraviolet lamp module. A power plug and a gigabit Ethernet port are respectively provided on one side of the camera box. The power supply box includes a power switch. The ultraviolet lamp power supply is fixedly connected inside the power supply box. The camera power supply and fan power supply are fixedly connected to one side of the inner wall of the power supply box. A power input port and a power output interface are respectively provided on the side of the power supply box away from the power switch.

[0007] The effect achieved by the above components is as follows: In automated production lines, line scan cameras can be used to detect defects on the surface of products, determine the position and orientation of products, etc. Since line scan cameras can only capture one line of pixels with a width of 1 pixel at the same time, and the object being photographed is moving at high speed, the exposure time of the camera usually needs to be set to a very low state. Therefore, a sufficiently bright light source is required for lighting. At this time, the light emitted by the 365nm ultraviolet lamp COB module passes through the condenser cylindrical lens to form a strip of light with sufficiently high ultraviolet illuminance to meet the light source requirements of the line scan camera.

[0008] Preferably, the adjustment mechanism includes a lifting frame, the inner walls of both ends of the lifting frame slidingly penetrating the arc surface of the support frame, a mounting frame fixedly connected to one end of the lifting frame, a servo motor fixedly connected to the inner wall of the mounting frame, a gear fixedly connected to the output end of the servo motor, a rack 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 meshing with the tooth surface of the gear, a limit frame fixedly connected to the other end of the lifting frame, a limit plate slidably connected to the inner wall of the limit frame, one end of the limit plate fixedly connected to the surface of the lifting frame, a connecting plate fixedly connected to the surface of the limit plate, a plurality of toothed blocks fixedly connected to the side wall of the limit frame, a sliding rod slidably penetrating the inner wall of one end of the connecting plate, a pressing plate fixedly connected to the end of the sliding rod near the toothed block, the pressing plate having a conical tooth cross-section, a spring sleeved on the arc surface of the sliding rod, and the two ends of the spring fixedly connected to the pressing plate and the connecting plate respectively.

[0009] The aforementioned components achieve the following effects: In automated production lines, line scanning cameras can be used to detect surface defects and determine the position and orientation of products. To facilitate magnetic particle detection using the camera housing within the support frame, an adjustment mechanism on the support frame surface can be used to effectively control the position of the support frame, thereby allowing the camera housing to perform better detection operations.

[0010] Preferably, a fixing plate is fixedly connected to the bottom surface of the support frame, and a drive rod is rotatably connected to the surface of the fixing plate. The upper arc surface of the drive rod is threaded through the surface of the lifting frame.

[0011] The effect achieved by the above components is that when limiting the position between the entire lifting frame and the support frame, the position of the lifting frame can be adjusted by the drive rod on the surface of the support frame, which helps to further move the position of the support frame.

[0012] Preferably, a guide frame is fixedly connected to one side surface of the mounting bracket, a guide plate slides through the inner wall of the guide frame, and one side of the guide plate is fixedly connected to the surface of the rack.

[0013] The effect achieved by the above components is that when the camera box in the support frame is slidably raised or lowered, it can be guided and protected by the guide frame on one side of the mounting bracket and the guide plate fixed to the surface of the rack, so as to avoid the position of the support frame from shifting when it moves.

[0014] Preferably, a friction pad, which is a rubber pad, is fixedly connected to the surface of the tooth block.

[0015] The effect achieved by the above components is that by using the extrusion plate with a conical cross-section to engage and fix the friction pad made of rubber material on the surface of the tooth block, the friction can be further increased, making it easier to fix and limit the support frame.

[0016] Preferably, the camera box surface is provided with an anti-disconnection mechanism corresponding to the position of the power supply plug. The anti-disconnection mechanism includes a connecting frame, the lower surface of which 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 rotating plate has an "L" shaped cross-section. A protective frame is fixedly connected to the upper end of the rotating plate. The protective frame has a semi-circular cross-section. 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 arc surface of the inner wall of the rotating plate.

[0017] The effect achieved by the above components is as follows: when operating the power plug, the plug data cable will be electrically connected to the power 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.

[0018] Preferably, both ends of the inner arc surface of the connecting frame are fitted with coil springs, and the two ends of the coil springs are fixedly connected to the rotating plate and the connecting frame, respectively.

[0019] The effect achieved by the above components is that the torsional force generated by the coil spring can adjust and fix the position of the rotating plate, preventing excessive shaking and displacement of the rotating plate.

[0020] Preferably, the bottom surface of the inner wall of the support frame is provided with a positioning mechanism corresponding to the position of the power box. The positioning mechanism includes two connecting blocks, which are respectively located on both sides of the power box. One end of each connecting block is fixedly connected to the side wall of the power box. Connecting grooves are formed on both sides of the connecting blocks. A positioning frame is fixedly connected to the surface of the support frame at the position corresponding to the connecting groove. An adjusting plate slides through the inner wall of the positioning frame. The cross-section of the adjusting plate is "L"-shaped. 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 near the connecting groove. A limiting groove is formed on the surface of the adjusting plate. A positioning shaft is threaded 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.

[0021] The effect achieved by the above components is that during the placement of the power box within the support frame, the positioning mechanism provided within the support frame can effectively compress and fix the entire power box, preventing the power box from shifting or falling.

[0022] Preferably, the arc surfaces of the two adjusting columns are fitted with the same connecting ring, and the arc surfaces of the adjusting columns are threadedly connected with positioning rings, the bottom end of which abuts against the surface of the connecting ring.

[0023] The effect achieved by the above components is that when the position of the adjustment plate is moved and limited, the connecting ring and the adjustment column can be used for docking and limiting protection, which helps to better fix the position of the power box.

[0024] Preferably, the high-speed image defect acquisition and detection device and its detection method based on a line scan camera include the following steps:

[0025] S1. First, place the entire camera box and power box on the support frame installed on one side of the support frame to position and protect the entire camera box and power box. Then, use the adjustment mechanism set on the surface of the support frame to adjust 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.

[0026] S2. When protecting the position of the power box inside the support frame, the positioning mechanism is used to press and fix it. The adjustment plate inside the positioning frame on the inner wall surface of the support frame is pulled to allow the adjustment plate to be inserted into the connecting groove on the side wall connecting block of the power box. Then, the positioning shaft on the surface of the positioning frame is rotated to press and fix the position of the entire adjustment plate, thereby fixing and protecting the position of the entire power box.

[0027] S2. After placing the camera box and power box in the support frame, they will be connected using a plug and data cable. To prevent the plug and data cable from falling off, an anti-detachment mechanism is used for protection. When connecting the power plug, rotate the rotating plate inside the connecting bracket on the side wall of the camera box, and at the same time, deflect the position of the rotating plate inside the protective frame at the top of the rotating plate. The rotating plate slides along the slide groove with the moving rod to limit its movement, so that the rotating plate and the protective frame cover and limit the plug end of the entire data cable. Then, the fixed shaft of the arc surface of the moving rod is rotated and pressed to fix it.

[0028] S2. During the lifting and lowering of the support frame, first rotate the drive rod at the bottom of the support frame to move and adjust the position of the lifting frame at the top of the support frame. Then, start the servo motor in the mounting frame on one side of the lifting frame, so that the servo motor drives the rack and gear on the side wall of the support frame to rotate relative to each other. At this time, let the other side of the support frame slide relative to the limiting plate fixed on the surface of the lifting frame with the help of the limiting frame. After reaching the designated position, pull the pressing plate on one side of the limiting frame to engage and fix the tooth block fixed on the side wall of the limiting frame.

[0029] Compared with the prior art, the advantages and positive effects of the present invention are as follows:

[0030] 1. In this invention, by setting an adjustment mechanism, the position of the entire support frame can be adjusted up and down, thereby allowing the camera box placed inside the support frame to move in position, facilitating the raising and lowering of the camera box to different heights, which helps to better perform magnetic particle inspection crack acquisition and detection operations.

[0031] 2. In this invention, by setting an anti-detachment mechanism, the power plug used on the side wall of the camera box can be protected to prevent the plug from falling off during use. With the help of the rotation limit between the rotating plate and the protective frame, the plug can be effectively and quickly prevented from falling off.

[0032] 3. In this invention, by setting a positioning mechanism, the power box placed at the bottom of the inner wall of the support frame can be squeezed and fixed, which effectively avoids the power box from loosening and falling during the lifting and lowering of the support frame. The adjustment plate is inserted and fixed by the connecting groove opened on the surface of the power box side wall fixing block, which helps to further squeeze and fix the protection. Attached Figure Description

[0033] Figure 1 This 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 in this invention.

[0034] Figure 2 This invention proposes a high-speed image defect acquisition and detection device and method based on a line scan camera. Figure 1 A schematic diagram of a partial structure;

[0035] Figure 3 This is a three-dimensional structural schematic diagram of the high-speed image defect acquisition and detection device and its detection method based on a line scan camera proposed in this invention;

[0036] Figure 4 This is a partial structural 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 in this invention.

[0037] Figure 5 This is a schematic diagram of the adjustment mechanism of the high-speed image defect acquisition and detection device and its detection method based on a line scan camera proposed in this invention.

[0038] Figure 6 This invention proposes a high-speed image defect acquisition and detection device and method based on a line scan camera. Figure 4 A magnified structural diagram at point A;

[0039] Figure 7 This is a schematic diagram of the anti-detachment mechanism of the high-speed image defect acquisition and detection device and detection method based on a line scan camera proposed in this invention;

[0040] Figure 8 This is a partial structural schematic diagram of the anti-detachment mechanism of the high-speed image defect acquisition and detection device and detection method based on a line scan camera proposed in this invention;

[0041] Figure 9 This is a schematic diagram 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 in this invention.

[0042] Figure 10 This invention proposes a high-speed image defect acquisition and detection device and method based on a line scan camera. Figure 9 A magnified structural diagram at point B;

[0043] 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 detection method based on a line scan camera proposed in this invention.

[0044] Legend: 1. Support frame; 2. Camera box; 21. Cooling fan; 22. UV lamp module; 23. Heat sink; 24. Camera body; 25. Power plug; 26. Gigabit Ethernet port; 27. Baffle; 28. Condenser cylindrical lens; 3. Power supply box; 31. UV lamp power supply; 32. Fan power supply; 33. Power switch; 34. Power input port; 35. Power output interface; 36. Camera power supply; 4. Adjustment mechanism; 401. Fixing plate; 402. Drive rod; 403. Lifting frame; 404. Mounting bracket; 405. Servo motor; 406. Gear; 407. Rack; 408. Guide frame; 4 9. Guide plate; 410. Limiting frame; 411. Limiting plate; 412. Tooth block; 413. Friction pad; 414. Extrusion plate; 415. Slide rod; 416. Connecting plate; 417. Spring; 5. Anti-detachment mechanism; 51. Connecting frame; 52. Rotating plate; 53. Coil spring; 54. Protective frame; 55. Slide groove; 56. Rotating plate; 57. Protective 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. Limiting groove; 67. Adjusting column; 68. Positioning ring; 69. Connecting ring; 7. Support frame. Detailed Implementation

[0045] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0046] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways than those described herein, and therefore the invention is not limited to the specific embodiments disclosed in the following specification.

[0047] Example 1, as Figure 1-11 As shown, this invention provides a high-speed image defect acquisition and detection device and method based on a line scan camera, including a support frame 1, a support frame 7, and an adjustment mechanism 4. The adjustment mechanism 4 is disposed 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. A camera box 2 and a power supply box 3 are respectively disposed on the inner wall of the support frame 7. An anti-disconnection mechanism 5 is provided on the surface of the camera box 2 corresponding to the position of the power supply plug 25. A positioning mechanism 6 is provided on the bottom surface of the inner wall of the support frame 7 corresponding to the position of the power supply box 3. The camera box 2 includes a camera body 24, which is located in the middle 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. The inner wall of the camera box 2 is fixedly connected to the two sides of the camera body 24. A baffle 27 is fixedly connected to the camera box 2. Ultraviolet lamp modules 22 are fixedly connected to both sides of the inner wall of the camera box 2. Heat dissipation aluminum fins 23 are 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. A focusing cylindrical lens 28 is fixedly connected to the surface of the camera box 2 at the position corresponding to the two sides of the camera body 24. A power plug 25 and a gigabit network port 26 are respectively provided on one side of the camera box 2. The power box 3 includes a power switch 33. An ultraviolet lamp power supply 31 is fixedly connected inside the power box 3. A camera power supply 36 and a fan power supply 32 are fixedly connected to one side of the inner wall of the power box 3. A power input port 34 and a power output interface 35 are respectively provided on the side of the power box 3 away from the power switch 33.

[0048] The light emitted by the ultraviolet lamp module 22 forms a band of light with sufficiently high ultraviolet illuminance after passing through the condenser cylindrical lens 28, in order to meet the light source requirements of the line scan camera body 24.

[0049] The heat dissipation aluminum radiator 23 dissipates the heat of the ultraviolet lamp module to the housing and internal space, and then is exhausted by the cooling fan 21;

[0050] The baffle 27 is used to block the light emitted by the ultraviolet lamp module 22 from interfering with the lens of the camera body 24, and to prevent dust from entering the range of the camera lens and affecting the shooting effect.

[0051] The camera body 24, the ultraviolet lamp module 22 and the cooling fan 21 are powered by three switching power supplies in the power supply box 3. The camera body 24 is connected to the industrial control computer through the gigabit network port 26 on the housing to transmit the acquired images.

[0052] The combination of camera body 24 and ultraviolet lamp module 22 is specifically used for magnetic particle inspection crack acquisition, and then the software intelligently identifies the crack location and size, etc.

[0053] The UV lamp module 22 is specially equipped with a focusing lens to enhance the intensity of the UV lamp. The standard illuminance of a normal UV lamp is only 3000-6000 UW / cm², which is not identifiable by a camera. To solve this problem, we added a custom lens to the UV lamp module 22, increasing the UV illuminance to 75000 UW / cm². Existing image processing technology refers to software, and their cameras are area scan cameras, which are not suitable for line scan cameras. Our innovation lies in upgrading the UV lamp module and then adopting a line scan camera.

[0054] The following section will explain the specific settings and functions of its adjustment mechanism 4, anti-detachment mechanism 5, and positioning mechanism 6.

[0055] like Figure 2 , Figure 3 and Figure 4 As shown, the adjustment mechanism 4 includes a lifting frame 403. The inner walls of 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 to a mounting frame 404. A servo motor 405 is fixedly connected to the inner wall of the mounting frame 404. A gear 406 is fixedly connected to the output end of the servo motor 405. A rack 407 is fixedly connected to the side wall surface of the support frame 7 at the position corresponding to 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 to 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. Several toothed blocks 412 are fixedly connected to the side wall of the limiting frame 410. A slide rod 415 slides through the inner wall of one end of plate 416. A pressing plate 414 is fixedly connected to the end of slide rod 415 near tooth block 412. The cross section of pressing plate 414 is conical. A spring 417 is sleeved on the arc surface of slide rod 415. The two ends of spring 417 are fixedly connected to pressing plate 414 and connecting plate 416 respectively. A fixing plate 401 is fixedly connected to the bottom surface of support frame 1. A drive rod 402 is rotatably connected to the surface of fixing plate 401. The upper arc surface of drive rod 402 is threaded through the surface of lifting frame 403. A guide frame 408 is fixedly connected to one side surface of mounting frame 404. A guide plate 409 slides through the inner wall of guide frame 408. One side of guide plate 409 is fixedly connected to the surface of rack 407. A friction pad 413 is fixedly connected to the surface of tooth block 412. Friction pad 413 is a rubber pad.

[0056] like Figure 5 and Figure 6As shown, the anti-detachment 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 rotating plate 52 has an "L" shaped cross section. A protective frame 54 is fixedly connected to the upper end of the rotating plate 52. The protective frame 54 has a semi-circular cross section. A rotating plate 56 is slidably connected to the inner wall of the protective frame 54. A groove 55 is provided on the upper surface of the protective frame 54. A moving rod 59 is slidably connected to the inner wall of the 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 arc surface of the inner wall of the rotating plate 56. A coil spring 53 is sleeved on both ends of the arc surface of the inner wall 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.

[0057] like Figure 7 and Figure 8 As shown, the positioning mechanism 6 includes two connecting blocks 61, which are 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 provided on both sides of the connecting block 61. A positioning frame 63 is fixedly connected to the surface of the support frame 7 at the position corresponding to the connecting grooves 62. An adjusting plate 65 slides through the inner wall of the positioning frame 63. The cross-section of the adjusting plate 65 is "L" shaped. 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 near the connecting grooves 62. A limiting groove 66 is provided on the surface of the adjusting plate 65. A positioning shaft 64 is threaded 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 arc surfaces of the two adjusting columns 67 are fitted with the same connecting ring 69. The arc surfaces of the adjusting columns 67 are threadedly connected with a positioning ring 68. The bottom end of the positioning ring 68 abuts against the surface of the connecting ring 69.

[0058] The overall working principle is as follows: during the lifting and lowering of the support frame 7, the drive rod 402 on the surface of the bottom fixing plate 401 of the support frame 1 is rotated first, thereby causing the drive rod 402 to move and adjust the position of the upper lifting frame 403 of the support frame 1. Then, the servo motor 405 in the mounting bracket 404 on one side of the lifting frame 403 is started, causing the servo motor 405 to drive the rack 407 and gear 406 on the side wall of the support frame 7 to rotate relative to each other. At this time, the other side of the support frame 7 will slide relative to the limiting plate 411 fixed on the surface of the lifting frame 403 by means of the limiting frame 410. At the same time, one side of the mounting bracket 404 is fixed. The guide frame 408 will slide and limit the guide plate 409 fixed on the surface of the rack 407, so that the entire support frame 7 cannot shift its position during the movement. After reaching the designated position, the slide bar 415 that slides through one end of the connecting plate 416 will be pulled, so that the slide bar 415 will drive the pressing plate 414 on one side of the limiting frame 410 to engage and fix the toothed block 412 fixed on the side wall of the limiting frame 410. At the same time, the pressing force generated by the spring 417 will press and fix the position of the pressing plate 414. 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 adjusted.

[0059] After placing the camera box 2 and power box 3 in the support frame 7, they will be connected using a plug and data cable. To prevent the plug and data cable from falling off, an anti-detachment mechanism 5 is used for protection. When the power plug 25 is connected, the rotating plate 52 inside the connecting bracket 51 on the side wall of the camera box 2 is rotated, and the rotating plate 56 inside the protective frame 54 at the upper end of the rotating plate 52 is deflected. The rotating plate 56 is slid and limited along the slide groove 55 by the moving rod 59, so that the rotating plate 56 and the protective frame 54 cover and protect the entire plug end surface of the data cable. Then, the fixed shaft 58 on the arc surface of the moving rod 59 is rotated and pressed to fix it. At the same time, the torsional force generated by the coil spring 53 inside the connecting bracket 51 is used to press the position of the rotating plate 52 to prevent the rotating plate 52 from shaking excessively.

[0060] When protecting the position of the power box 3 inside the support frame 7, the positioning mechanism 6 is used to press and fix it. The adjusting plate 65 inside the positioning frame 63 on the inner wall surface of the support frame 7 is pulled to insert the adjusting plate 65 into the connecting groove 62 on the side wall connecting block 61 of the power box 3. Then, the positioning shaft 64 on the surface of the positioning frame 63 is rotated to press the bottom end of the inner wall of the sliding groove 55 on the surface of the adjusting plate 65, thereby fixing the position of the entire adjusting plate 65. Then, the connecting ring 69 is fitted and positioned with the adjusting post 67 on one end surface of the adjusting plate 65. Then, the positioning ring 68 on the arc surface of the adjusting post 67 is rotated to be threaded and fixed, so that the position of the entire connecting ring 69 cannot be moved or fall off, thereby fixing and protecting the position of the entire power box 3.

[0061] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope 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 frame (7), and an adjustment mechanism (4), characterized in that: The adjustment mechanism (4) is set 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 wall of the support frame (7) is respectively provided with a camera box (2) and a power supply box (3). The camera box (2) includes a camera body (24) for detecting product surface defects and determining the product position and orientation. The camera body (24) is located in the middle of the camera box (2). The lower surface of the camera body (24) is fixedly connected to the bottom 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). The inner wall of the camera box (2) is fixedly connected to the positions corresponding to the two sides of the camera body (24) for blocking ultraviolet light. The ultraviolet lamp module (22) has a baffle (27) to prevent light from interfering with the camera lens. The surface of the ultraviolet lamp module (22) is fixedly connected to a heat dissipation aluminum radiator (23) for dissipating heat from the ultraviolet lamp module (22). Two cooling fans (21) are fixedly connected to one side of the camera box (2). A focusing cylindrical lens (28) is fixedly connected to the surface of the camera box (2) at the position corresponding to both sides of the camera body (24) to form a light band with sufficient ultraviolet illuminance from the ultraviolet lamp module (22). A power plug (25) and a gigabit network port (26) are respectively provided on one side of the camera box (2). The power supply box (3) includes a power switch (33). The interior of the power supply box (3) is fixedly connected to an ultraviolet lamp power supply (33). 1) A camera power supply (36) and a fan power supply (32) are fixedly connected to one side of the inner wall of the power box (3). A power input port (34) and a power output interface (35) are respectively provided on the side of the surface of the power box (3) away from the power switch (33). The adjustment mechanism (4) includes a lifting frame (403). The inner walls of both ends of the lifting frame (403) slide through the arc surface of the support frame (1). A mounting frame (404) is fixedly connected to one end of the lifting frame (403). A servo motor (405) is fixedly connected to the inner wall of the mounting frame (404). A gear (406) is fixedly connected to the output end of the servo motor (405). The side wall surface of the support frame (7) corresponds to the servo motor (405). A rack (407) is fixedly connected to the position of the lifting frame (403). The tooth surface of the rack (407) meshes with the tooth surface of the gear (406). A limit frame (410) is fixedly connected to the other end of the lifting frame (403). A limit plate (411) is slidably connected to the inner wall of the limit frame (410). One end of the limit 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 limit plate (411). Several tooth blocks (412) are fixedly connected to the side wall of the limit frame (410). A slide rod (415) slides through the inner wall of one end of the connecting plate (416). A pressing plate (414) is fixedly connected to the end of the slide rod (415) near the tooth block (412).The extrusion plate (414) has a tapered cross-section, and a spring (417) is fitted onto the arc surface of the slide rod (415). The two ends of the spring (417) are fixedly connected to the extrusion plate (414) and the connecting plate (416), respectively.

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

3. The high-speed image defect acquisition and detection device based on a line scan camera according to claim 2, characterized in that: A guide frame (408) is fixedly connected to one side surface of the mounting bracket (404), and a guide plate (409) slides through the inner wall of the guide frame (408). One side of the guide plate (409) is fixedly connected to the surface of the rack (407).

4. The high-speed image defect acquisition and detection device based on a line scan camera according to claim 3, characterized in that: A friction pad (413) is fixedly connected to the surface of the tooth block (412), and the friction pad (413) is a rubber pad.

5. The high-speed image defect acquisition and detection device based on a line scan camera according to claim 4, characterized in that: The camera box (2) is provided with an anti-disconnection mechanism (5) at the position corresponding to the power supply plug (25). The anti-disconnection 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). The inner wall of the connecting frame (51) is rotatably connected to a rotating plate (52). The cross-section of the rotating plate (52) is "L". The upper end of the rotating plate (52) is fixedly connected to a protective frame (54). The cross-section of the protective frame (54) is semi-circular. The inner wall of the protective frame (54) is slidably connected to a rotating plate (56). The upper surface of the protective frame (54) is provided with a sliding groove (55). The inner wall of the sliding groove (55) is slidably connected to a moving rod (59). The bottom end of the moving rod (59) is fixedly connected to the surface of the rotating plate (56). The arc surface of the moving rod (59) is threadedly connected to a fixed shaft (58). The arc surface of the inner wall of the rotating plate (56) is fixedly connected to a protective pad (57).

6. The high-speed image defect acquisition and detection device based on a line scan camera according to claim 5, characterized in that: Both ends of the inner arc surface of the connecting frame (51) are fitted with coil springs (53), and the two ends of the coil springs (53) are fixedly connected to the rotating plate (52) and the connecting frame (51) respectively.

7. The high-speed image defect acquisition and detection device based on a line scan camera according to claim 6, characterized in that: The bottom of the inner wall of the support frame (7) is provided with a positioning mechanism (6) corresponding to the position of the power box (3). The positioning mechanism (6) includes two connecting blocks (61), which are located on both sides of the power box (3). One end of the connecting block (61) is fixedly connected to the side wall of the power box (3). Connecting grooves (62) are opened on both sides of the connecting block (61). A positioning frame (63) is fixedly connected to the surface of the support frame (7) at the position corresponding to the connecting groove (62). An adjusting plate (65) slides through the inner wall of the frame. The adjusting plate (65) has an "L" shaped cross section. 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 one end of the adjusting plate (65) near the connecting groove (62). A limiting groove (66) is opened on the surface of the adjusting plate (65). A positioning shaft (64) is threaded 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).

8. The high-speed image defect acquisition and detection device based on a line scan camera according to claim 7, characterized in that: The two adjusting columns (67) are fitted with the same connecting ring (69) on their arc surfaces. The arc surfaces of the adjusting columns (67) are threaded with a positioning ring (68). The bottom end of the positioning ring (68) abuts against the surface of the connecting ring (69).

9. The detection method of the high-speed image defect acquisition and detection device based on a line scan camera according to any one of claims 1-8, comprising the following steps: S1. First, place the entire camera box (2) and power box (3) in the support frame (7) installed on one side of the support frame (1) to position and protect the entire camera box (2) and power box (3). Then, use the adjustment mechanism (4) set on the surface of the support frame (1) to 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 box (3) inside the support frame (7), the positioning mechanism (6) is used to squeeze and fix it. The adjustment plate (65) inside the positioning frame (63) on the inner wall surface of the support frame (7) is pulled so that the adjustment plate (65) is inserted into the connecting groove (62) on the side wall connecting block (61) of the power box (3). Then the positioning shaft (64) on the surface of the positioning frame (63) is rotated to squeeze and fix the position of the entire adjustment plate (65), thereby fixing and protecting the position of the entire power box (3). S3. After placing the camera box (2) and the power box (3) in the support frame (7), they will be connected by the 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 plug (25) is connected, the rotating plate (52) in the side wall connecting bracket (51) of the camera box (2) is rotated, and the rotating plate (56) in the upper protective frame (54) of the rotating plate (52) is deflected. The rotating plate (56) slides along the slide groove (55) by the moving rod (59) to limit the movement. The rotating plate (56) and the protective frame (54) cover and protect the plug end of the entire data cable. Then the fixed shaft (58) of the arc surface of the moving rod (59) is rotated and squeezed to fix it. S4. During the lifting and lowering of the support frame (7), first rotate the drive rod (402) at the bottom of the support frame (1) to move and adjust the position of the lifting frame (403) at the top of the support frame (1). Then start the servo motor (405) in the mounting bracket (404) on one side of the lifting frame (403) so that the servo motor (405) drives the rack (407) and gear (406) on the side wall of the support frame (7) to rotate relative to each other. At this time, let the other side of the support frame (7) slide relative to the limiting plate (411) fixed on the surface of the lifting frame (403) through the limiting frame (410). After reaching the designated position, pull the pressing plate (414) on one side of the limiting frame (410) and the tooth block (412) fixed on the side wall of the limiting frame (410) to engage and fix the position.

Images