A visual inspection device and method based on production and processing of vehicle-mounted screens

Abstract

This invention relates to the field of automotive screen technology and discloses a visual inspection device and method based on automotive screen production and processing. The device includes a base, an inspection box, a controller, and a visual detector. The inspection box is fixedly connected to the top of the base. Through the individual or synchronous meshing of toothed plates one, two, three, and four in the ring-array drive motor of the inspection and adjustment mechanism, the adjusting rod, adjusting tube one, and adjusting tube two rotate accordingly. Through the linkage of adjusting plates one, two, and three with hinge rod one, adjusting bracket, and hinge rod two, the circular plate one can be tilted and rotated horizontally in any direction. This allows the automotive screen to be adjusted to the optimal inspection position below the visual detector, effectively solving problems such as edge distortion, inconsistent depth of field, and uneven local reflection during the inspection of large-size curved automotive screens. This achieves clear imaging across the entire screen area and improves the detection rate of edge defects.

Description

Technical Field

[0001] This invention relates to the field of automotive screen technology, specifically to a visual inspection device and method based on automotive screen manufacturing and processing. Background Technology

[0002] As a core component of the automotive intelligent cockpit, the appearance and display accuracy of the in-vehicle screen directly determine the product quality during the production and processing. Visual inspection is a key quality control link before the in-vehicle screen leaves the factory. In particular, for large-size curved in-vehicle screens and irregularly shaped in-vehicle screens, higher requirements are placed on the screen posture adjustment, accurate positioning and protection of the inspection device.

[0003] Problems with existing technologies: Currently, the visual inspection devices used in the production and processing of automotive screens mostly adopt a structure of fixed inspection platform combined with a single visual acquisition component. The inspection platform can only achieve horizontal placement of the screen and cannot adjust its posture in multiple directions according to the curvature of the screen surface and the inspection area. When inspecting large-size curved automotive screens, problems such as edge distortion, inconsistent depth of field, and uneven local reflection are prone to occur. This makes it difficult for the visual detector to achieve clear imaging of the entire screen area, and the edge defect detection rate is much lower than that of flat areas. The detection accuracy cannot meet production requirements. At the same time, the screen mounting and positioning structure of existing devices is mostly rigid snap-fit ​​or simple adsorption type, which lacks automatic circumferential correction function. Manual placement of the screen is prone to misalignment, and rigid contact can easily cause edge chipping and surface scratches of the automotive screen. Ordinary adsorption structure cannot adapt to the thin and fragile characteristics of automotive screens. Improper adsorption force can easily cause screen deformation, affecting the accuracy of the inspection results and causing screen damage.

[0004] To address this, a visual inspection device and method based on the production and processing of vehicle-mounted screens are proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a visual inspection device and method based on the production and processing of vehicle screens, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a visual inspection device based on the production and processing of vehicle screens, comprising a base, an inspection box, a controller, and a visual detector. The inspection box is fixedly connected to the top of the base, the controller is fixedly connected to the side wall of the inspection box, and the visual detector is fixedly connected to the top of the inner cavity of the inspection box. A detection adjustment mechanism is provided at the bottom of the inner cavity of the inspection box for adjusting the tilt angle of the vehicle screen to be inspected in any direction. A mounting correction mechanism is provided at the top of the detection adjustment mechanism for performing circumferential positioning and posture correction of the vehicle screen to be inspected.

[0007] The detection and adjustment mechanism includes a drive motor, an adjustment rod, an adjustment tube one, and an adjustment tube two. The drive motor is arranged in a circular array at the bottom of the inner cavity of the detection box. The adjustment rod is rotatably disposed inside the detection box. The adjustment tube one is rotatably connected to the outer wall of the adjustment rod, and the adjustment tube two is rotatably connected to the outer wall of the adjustment tube one.

[0008] Preferably, the detection and adjustment mechanism further includes a detection platform fixedly connected to the inner wall of the detection box, a fixing plate fixedly connected to the bottom end of the inner cavity of the detection box, a toothed plate one fixedly connected to the drive end of the upper surface of the drive motor, a toothed plate two and an adjustment plate one fixedly connected to the bottom and top outer walls of the adjustment rod, a toothed plate three and an adjustment plate two fixedly connected to the bottom and top outer walls of the adjustment tube one, a toothed plate four and an adjustment plate three fixedly connected to the bottom and top outer walls of the adjustment tube two, a hinge rod one fixedly connected to the top outer walls of the adjustment plate one, the adjustment plate two and the adjustment plate three, an adjustment bracket hinged to the outer wall of the hinge rod one, a hinge rod two hinged to the inner wall of the top of the adjustment bracket, and a circular plate one fixedly connected to the outer wall of the end of the hinge rod two away from the adjustment bracket.

[0009] Preferably, the drive motor is fixedly connected to the upper surface of the fixed plate, and the bottom end of the adjusting rod is rotatably connected to the upper surface of the fixed plate.

[0010] Preferably, an electrical connection is established between the drive motor and the controller, and the regulating tube is rotatably connected to the inner wall of the testing table.

[0011] Preferably, toothed plates two, three, and four all mesh with toothed plate one, and the tops of adjusting plates one, two, and three are at the same height.

[0012] Preferably, the installation and correction mechanism includes a sliding rod slidably connected to the inner wall of the middle part of the circular plate 1, a suction cup fixedly connected to the top of the sliding rod, a buffer spring sleeved on the outer wall of the top of the sliding rod, a circular disc slidably connected to the outer wall of the sliding rod, an L-shaped plate arranged in a ring array and fixedly connected to the outer wall of the circular disc, an annular inner toothed plate fixedly connected to the inner wall of the top of the L-shaped plate, an adjusting roller sleeved on the outer wall of the annular inner toothed plate, a second circular plate fixedly connected to the inner wall of the adjusting roller near the annular inner toothed plate, a connecting rod fixedly connected between the two second circular plates, a fixing block 1 fixedly connected to the outer wall of the bottom end of the second circular plate near the connecting rod, a fixing block 2 fixedly connected to the outer wall of the bottom end of the second circular plate near the connecting rod, a brake plate rotatably connected to the outer wall of the second fixing block, and a return spring fixedly connected between the first fixing block and the brake plate.

[0013] Preferably, the two ends of the buffer spring are fixedly connected to the first circular plate and the circular disc, respectively, and the L-shaped plate slides through the inner wall of the first circular plate.

[0014] Preferably, the outer wall of the adjusting roller is provided with a rubber contact strip, and the brake plate is inclined toward one side of the suction cup with the fixed block two as the axis.

[0015] Preferably, the end of the brake plate away from the second fixing block abuts against the inner tooth groove of the annular inner tooth plate.

[0016] A visual inspection method based on the production and processing of automotive screens includes the following steps:

[0017] Step 1: Place the in-vehicle screen to be tested with the concave side down on top of the installation and correction mechanism at the top of the testing and adjustment mechanism, so that the edge of the screen makes initial contact with the adjustment roller;

[0018] Step 2: Press down on the vehicle screen. By adjusting the rollers and the annular inner toothed plate, the screen can be automatically positioned and corrected in the circumferential direction. At the same time, the screen is pressed down, causing the suction cup to adhere to the back of the screen, forming a vacuum adsorption to complete the flexible fixation.

[0019] Step 3: Start the drive motor through the controller. Through the meshing of the toothed plate and the linkage of the adjusting rod and the adjusting tube, the circular plate is tilted and flipped or rotated horizontally to adjust the position of the vehicle screen to be detected to the optimal detection posture below the visual detector.

[0020] Step 4: Activate the vision detector to perform full-area visual acquisition and defect detection on the vehicle screen. If other areas need to be detected, repeat Step 3 to adjust the posture, complete the full-area detection, and transmit the data to the controller for judgment.

[0021] Step 5: The controller outputs the test results, releases the suction cup, removes the qualified products and flows into the next process, and marks the unqualified products for rework or scrap. The test adjustment mechanism is reset to await the next test.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 1. By using the drive motors arranged in a ring array in the detection and adjustment mechanism, and cooperating with the individual or synchronous meshing of toothed plate one, toothed plate two, toothed plate three, and toothed plate four, the adjustment rod, adjustment tube one, and adjustment tube two are driven to rotate accordingly. Through the linkage of adjustment plate one, adjustment plate two, adjustment plate three, hinge rod one, adjustment bracket, and hinge rod two, the circular plate one can be tilted and rotated in any direction and rotated horizontally. Any position of the vehicle screen can be adjusted to the optimal detection position below the vision detector, effectively solving the problems of edge distortion, inconsistent depth of field, and uneven local reflection when detecting large-size curved screens in vehicles, achieving clear imaging of the entire screen area, and improving the edge defect detection rate.

[0024] 2. By using the unidirectional rotation limiting structure formed by the adjusting roller, the annular inner toothed plate, the brake plate, and the return spring in the installation and correction mechanism, the vehicle screen can be automatically positioned and its posture corrected in the circumferential direction. Combined with the elastic return effect of the buffer spring on the annular disk and the L-shaped plate, and the vacuum adsorption fixation of the suction cup, the vehicle screen can be accurately aligned and installed. At the same time, the rubber contact strip on the outer wall of the adjusting roller can prevent scratches on the screen surface. Meanwhile, the flexible fixation of the suction cup is adapted to the thin and fragile characteristics of the vehicle screen, improving the installation stability and protection of the screen during the testing process. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a schematic diagram showing the positional relationship between the fixing plate and the circular plate of the present invention;

[0027] Figure 3 This is a schematic diagram showing the positional relationship between the drive motor and the toothed plate of the present invention;

[0028] Figure 4 This is a schematic diagram showing the positional relationship between the regulating tube 2 and the regulating rod of the present invention;

[0029] Figure 5 This is a schematic diagram showing the positional relationship between the regulating tube and the regulating rod of the present invention;

[0030] Figure 6 For the present invention Figure 5 Enlarged view of point A in the middle;

[0031] Figure 7 This is a schematic diagram showing the positional relationship between the suction cup and the adjusting rod of the present invention;

[0032] Figure 8 This is a schematic diagram showing the positional relationship between the adjusting roller and the circular plate of the present invention;

[0033] Figure 9 This is a schematic diagram showing the positional relationship between the second hinge rod and the annular disk of the present invention;

[0034] Figure 10 This is a schematic diagram showing the positional relationship between the L-shaped plate and the circular plate of the present invention;

[0035] Figure 11 This is a schematic diagram showing the positional relationship between the annular internal toothed plate and the brake plate of the present invention;

[0036] Figure 12 This is a flowchart of the detection method of the device of the present invention.

[0037] In the picture:

[0038] 101. Base; 102. Detection box; 103. Controller; 104. Vision detector;

[0039] 200. Detection and adjustment mechanism; 201. Detection table; 202. Fixing plate; 203. Drive motor; 204. Gear plate one; 205. Adjusting rod; 205-1. Gear plate two; 205-2. Adjusting plate one; 206. Adjusting tube one; 206-1. Gear plate three; 206-2. Adjusting plate two; 207. Adjusting tube two; 207-1. Gear plate four; 207-2. Adjusting plate three; 208. Hinge rod one; 209. Adjusting bracket; 210. Hinge rod two; 211. Circular plate one;

[0040] 300. Installation of the correction mechanism; 301. Slide rod; 302. Suction cup; 303. Buffer spring; 304. Circular disc; 305. L-shaped plate; 306. Circular inner toothed plate; 307. Adjusting roller; 308. Circular plate two; 309. Connecting rod; 310. Fixing block one; 311. Fixing block two; 312. Brake plate; 313. Return spring. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0042] Example 1

[0043] Please see Figures 1 to 11 The first embodiment of the present invention provides a visual inspection device for the production and processing of vehicle screens. The device includes a base 101, an inspection box 102, a controller 103, and a visual detector 104. The inspection box 102 is fixedly connected to the top of the base 101, the controller 103 is fixedly connected to the side wall of the inspection box 102, and the visual detector 104 is fixedly connected to the top of the inner cavity of the inspection box 102. A detection adjustment mechanism 200 is provided at the bottom of the inner cavity of the inspection box 102 for adjusting the tilt angle of the vehicle screen to be inspected in any direction. A mounting correction mechanism 300 is provided at the top of the detection adjustment mechanism 200 for circumferential positioning and posture correction of the vehicle screen to be inspected.

[0044] The detection and adjustment mechanism 200 includes a drive motor 203, an adjustment rod 205, an adjustment tube 1 206, and an adjustment tube 207. The drive motor 203 is arranged in a ring array at the bottom of the inner cavity of the detection box 102. The adjustment rod 205 is rotatably disposed inside the detection box 102. The adjustment tube 1 206 is rotatably connected to the outer wall of the adjustment rod 205, and the adjustment tube 207 is rotatably connected to the outer wall of the adjustment tube 1 206.

[0045] Example 2

[0046] Reference Figures 1 to 6 This is the second embodiment of the present invention, which differs from the first embodiment in that: the detection and adjustment mechanism 200 further includes a detection platform 201 fixedly connected to the inner wall of the detection box 102, a fixing plate 202 fixedly connected to the bottom end of the inner cavity of the detection box 102, a toothed plate 204 fixedly connected to the driving end of the upper surface of the drive motor 203, a toothed plate 205-1 and an adjustment plate 205-2 fixedly connected to the bottom and top outer walls of the adjustment rod 205 respectively, and a toothed plate 206-1 fixedly connected to the bottom and top outer walls of the adjustment tube 206 respectively. 1 and adjusting plate 206-2, toothed plate 207-1 and adjusting plate 207-2 respectively fixedly connected to the bottom and top outer walls of adjusting pipe 207, hinge rod 208 fixedly connected to the top outer walls of adjusting plate 1 205-2, adjusting plate 206-2 and adjusting plate 3 207-2, adjusting bracket 209 hinged to the outer wall of hinge rod 208, hinge rod 210 hinged to the top inner wall of adjusting bracket 209, and circular plate 211 fixedly connected to the outer wall of hinge rod 210 away from adjusting bracket 209.

[0047] Furthermore, the drive motor 203 is fixedly connected to the upper surface of the fixed plate 202, the bottom end of the adjusting rod 205 is rotatably connected to the upper surface of the fixed plate 202, the drive motor 203 is electrically connected to the controller 103, the second adjusting tube 207 is rotatably connected to the inner wall of the detection table 201, the second toothed plate 205-1, the third toothed plate 206-1 and the fourth toothed plate 207-1 are all engaged with the first toothed plate 204, and the top ends of the first adjusting plate 205-2, the second adjusting plate 206-2 and the third adjusting plate 207-2 are at the same height.

[0048] It should be noted that the drive motor 203 is a servo motor, and its speed and direction are precisely controlled by the controller 103. It can realize the fixed angle rotation of the toothed plate 204, thereby precisely controlling the tilt angle of the circular plate 211. The adjustment accuracy can reach ±0.1°, which meets the posture adjustment requirements of high-precision detection of vehicle screens.

[0049] Adjusting rod 205, adjusting tube one 206, and adjusting tube two 207 are coaxially nested, and their rotations do not interfere with each other. Together with the three sets of drive components arranged in a ring array, the circular plate one 211 can achieve multi-directional attitude adjustment in three-dimensional space, which can be adapted to the detection of vehicle curved screens with different curvatures and sizes.

[0050] The tops of adjustment plates 1 (205-2), 206-2, and 3 (207-2) are at the same height, which ensures the initial installation level of hinge rod 1 (208), avoids uneven force on adjustment bracket 209 and adjustment jamming caused by initial height difference, and improves the operational stability and service life of detection and adjustment mechanism 200.

[0051] During operation: When the operation begins, the controller 103 controls the drive motor 203 to start working, so that the drive motor 203 drives the toothed plate 204 to rotate.

[0052] When only toothed plate 204, which meshes with toothed plate 205-1, rotates counterclockwise, toothed plate 204 drives toothed plate 205-1 to rotate clockwise. This causes toothed plate 205-1 to rotate adjusting rod 205 to the top of fixed plate 202, which in turn causes adjusting plate 205-2 to rotate clockwise. This causes adjusting plate 205-2 to rotate hinge rod 208, which is hinged to it, to rotate. Hinged rod 208 then rotates the bottom of adjusting bracket 209, causing it to contact the hinge at the bottom of adjusting bracket 209. This causes adjusting bracket 209 to contact hinge rod 210 at an upward angle, causing hinge rod 210 to rotate upward on one side connected to circular plate 211. This causes the two hinge rods 210 on the other side of circular plate 211 to rotate upward. The hinge rod 208, which is fixedly connected to the top of the second adjustment plate 206-2 and the third adjustment plate 207-2, rotates on the outer wall and simultaneously abuts against the top of the second adjustment plate 206-2 and the third adjustment plate 207-2, and begins to flip downwards. This causes the circular plate 211 to tilt toward the side of the second adjustment plate 206-2. If the toothed plate 204, which meshes with the toothed plate 205-1, rotates clockwise, the circular plate 211 will tilt away from the second adjustment plate 206-2. Similarly, when the toothed plate 204 drives any one of the toothed plates 205-1, 206-1, and 207-1 to start rotating, the circular plate 211 can be flipped toward or away from any one of the toothed plates 205-1, 206-1, and 207-1. Therefore, the in-vehicle screen can be flipped at different angles.

[0053] When the three toothed plates 204 rotate synchronously, they drive the adjusting rods 205, 206, and 207 to rotate synchronously via the toothed plates 205-1, 206-1, and 207-1, respectively. This, in turn, drives the adjusting plates 205-2, 206-2, and 207-2 to rotate synchronously. Furthermore, the adjusting rods 208, 209, and 210 drive the circular plates 211, which are in different tilt states, to rotate synchronously. This allows for the horizontal rotation of the circular plates 211, enabling any position of the vehicle screen to be moved to the optimal detection position below the vision detector 104. This avoids the problems of inconsistent depth of field and uneven local reflections that often occur when inspecting large curved surfaces and edge distortions on the vehicle screen. It ensures that the vision detector 104 can clearly image the entire vehicle screen, preventing the edge defect detection rate from being significantly lower than that of planar areas.

[0054] By using the drive motors 203 arranged in a ring array in the detection and adjustment mechanism 200, which work in conjunction with the individual or synchronous meshing of toothed plates 204, 205-1, 206-1, and 207-1, the adjusting rods 205, 206, and 207 rotate accordingly. Through the linkage of adjusting plates 205-2, 206-2, 207-2, 208, 209, and 210, the circular plate 211 can be tilted, flipped, and rotated horizontally in any direction. This allows the vehicle screen to be adjusted to the optimal detection position below the vision detector 104, effectively solving the problems of edge distortion, inconsistent depth of field, and uneven local reflection when detecting large curved screens in vehicles. This achieves clear imaging across the entire screen area and improves the detection rate of edge defects.

[0055] Example 3

[0056] Reference Figures 7 to 11This is the third embodiment of the present invention, which differs from the second embodiment in that: the installation and correction mechanism 300 includes a slide rod 301 slidably connected to the inner wall of the middle part of the circular plate 211, a suction cup 302 fixedly connected to the top of the slide rod 301, a buffer spring 303 sleeved on the outer wall of the top of the slide rod 301, a circular disc 304 slidably connected to the outer wall of the slide rod 301, an L-shaped plate 305 arranged in a circular array and fixedly connected to the outer wall of the circular disc 304, an annular inner toothed plate 306 fixedly connected to the inner wall of the top of the L-shaped plate 305, and a sleeved on the outer wall of the annular inner toothed plate 306. The wall includes an adjusting roller 307, a circular plate 308 fixedly connected to the inner wall of the adjusting roller 307 near the annular inner toothed plate 306, a connecting rod 309 fixedly connected between the two circular plates 308, a fixing block 310 fixedly connected to the outer wall of the bottom end of the circular plate 308 near the connecting rod 309, a fixing block 311 fixedly connected to the outer wall of the bottom end of the circular plate 308 near the connecting rod 309, a brake plate 312 rotatably connected to the outer wall of the fixing block 311, and a return spring 313 fixedly connected between the fixing block 310 and the brake plate 312.

[0057] Furthermore, the two ends of the buffer spring 303 are fixedly connected to the circular plate 211 and the annular disk 304 respectively. The L-shaped plate 305 slides through the inner wall of the circular plate 211. A rubber contact strip is provided on the outer wall of the adjusting roller 307. The brake plate 312 is inclined towards the side of the suction cup 302 with the fixed block 311 as the axis. The end of the brake plate 312 away from the fixed block 311 abuts against the inner tooth groove of the annular inner tooth plate 306.

[0058] It should be noted that the number of adjusting rollers 307 is adapted to the number of annular inner toothed plates 306 and they are evenly arranged in a ring. This allows for contact positioning of the vehicle screen from multiple directions, ensuring that the center of the screen after positioning coincides with the center of the suction cup 302, thereby improving positioning accuracy.

[0059] The rubber contact strip on the outer wall of the adjusting roller 307 is made of anti-static silicone with a hardness of 55-60HA. It can increase the friction between the roller and the vehicle screen to prevent the screen from slipping during positioning, and can also effectively prevent static electricity from being generated and prevent static electricity from damaging the pixel units of the vehicle screen. At the same time, the soft contact can effectively buffer the contact pressure and prevent damage such as chipping and scratches on the screen edges.

[0060] The buffer spring 303 is a tension spring, and its preload can be adjusted according to the thickness and material of the vehicle screen to avoid the L-shaped plate 305 hitting the screen too quickly due to excessive tension, or the tension being too small to achieve effective reset.

[0061] The suction cup 302 is a vacuum silicone suction cup 302. Its adsorption surface is in flexible contact with the vehicle screen, which can be adapted to the slightly curved back of the screen to ensure the sealing of the adsorption and fixation, while avoiding hard contact that may cause pressure damage to the back of the screen. The adsorption pressure is regulated by the controller 103 to prevent the screen from deforming due to excessive adsorption force.

[0062] During operation: First, the operator places the recessed part of the vehicle screen downwards above the circular plate 211, then presses the vehicle screen downwards, causing the inner wall of the recessed part of the vehicle screen to first contact the adjusting roller 307. This causes the vehicle screen to rotate away from the suction cup 302, thus moving the vehicle screen in the direction of the adjustment roller 307's rotation, until the inner wall of the recessed part of the vehicle screen contacts the adjusting roller 307 on the other side, causing the adjusting roller 307 on the other side to move away from the suction cup 302. 07 moves synchronously away from the suction cup 302, causing the vehicle screen to move between the two rotating adjustment rollers 307. This causes the recessed inner wall of the vehicle screen to come into contact with the last adjustment roller 307, thus causing the last adjustment roller 307 to rotate towards the suction cup 302. At this time, the last adjustment roller 307 rotates towards the suction cup 302 on the outer wall of the annular inner toothed plate 306, and drives the circular plate 308 and connecting rod 309 fixedly connected to it to move synchronously. This causes the second circular plate 308 to move synchronously with the second fixed block 311 and the first fixed block 310. The second fixed block 311 then drives the brake plate 312, which is rotatably connected to it, to rotate. Since the brake plate 312 rotates in the direction of contact with the tooth groove of the annular inner toothed plate 306, the adjusting roller 307 cannot initially rotate towards the side of the suction cup 302. As the adjusting roller 307 rotates away from the suction cup 302, it drives the second circular plate 308... The connecting rod 309 rotates synchronously, causing the circular plate 308 to drive the fixing block 310 and the fixing block 311 to drive the return spring 313 and the brake plate 312 to rotate towards the side closer to the suction cup 302. This causes the inner teeth of the annular inner tooth plate 306 to abut against the brake plate 312 and flip towards the side compressing the return spring 313. This prevents the brake plate 312 from abutting against the tooth groove of the annular inner tooth plate 306, thus enabling the adjusting roller 307 to rotate in one direction. The position of the vehicle screen is then positioned by adjusting the roller 307.

[0063] As the vehicle screen moves downward, the adjusting roller 307 drives the L-shaped plate 305 to move downward synchronously inside the circular plate 211 via the annular inner toothed plate 306. This causes the L-shaped plate 305 to drive the circular disc 304 to slide downward on the outer wall of the slide rod 301, stretching the buffer spring 303. The elastic force of the stretched buffer spring 303 resets the L-shaped plate 305, causing the vehicle screen to come into contact with the suction cup 302. By squeezing the air between the suction cup 302 and the vehicle screen, the suction cup 302 securely installs the vehicle screen.

[0064] By installing the unidirectional rotation limiting structure formed by the adjusting roller 307, the annular inner toothed plate 306, the brake plate 312, and the return spring 313 in the correction mechanism 300, the vehicle screen can be automatically positioned and its posture corrected in the circumferential direction. With the elastic return effect of the buffer spring 303 on the annular disk 304 and the L-shaped plate 305, and the vacuum adsorption fixation of the suction cup 302, the vehicle screen can be accurately aligned and installed. At the same time, the rubber contact strip on the outer wall of the adjusting roller 307 can prevent scratches on the screen surface. Meanwhile, the flexible fixation of the suction cup 302 is adapted to the thin and fragile characteristics of the vehicle screen, improving the installation stability and protection of the screen during the testing process.

[0065] A visual inspection method based on the production and processing of automotive screens includes the following steps:

[0066] Step 1: Place the vehicle screen to be tested with the concave side down on top of the mounting and correction mechanism 300 at the top of the testing and adjustment mechanism 200, so that the edge of the screen makes initial contact with the adjustment roller 307.

[0067] Step 2: Press down on the vehicle screen. By adjusting the cooperation between the roller 307 and the annular inner toothed plate 306, the screen can be automatically positioned and corrected in the circumferential direction. At the same time, the screen is pressed down, which drives the suction cup 302 to stick to the back of the screen, forming a vacuum adsorption to complete the flexible fixation.

[0068] Step 3: Start the drive motor 203 through the controller 103. Through the engagement of the toothed plate and the linkage between the adjusting rod 205 and the adjusting tube, drive the circular plate 211 to tilt and flip or rotate horizontally, so as to adjust the position of the vehicle screen to be detected to the optimal detection posture below the vision detector 104.

[0069] Step 4: Start the vision detector 104 to perform full-area visual acquisition and defect detection on the vehicle screen. If other areas need to be detected, repeat step 3 to adjust the posture, complete the full-area detection, and transmit the data to the controller 103 for judgment.

[0070] Step 5: The controller 103 outputs the test results, releases the suction cup 302, removes the qualified products and flows into the next process, and marks the unqualified products for rework or scrap. The test adjustment mechanism 200 is reset to await the next test.

[0071] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0072] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A visual inspection device for the production and processing of vehicle-mounted screens, comprising a base (101), an inspection box (102), a controller (103), and a visual detector (104), wherein the inspection box (102) is fixedly connected to the top of the base (101), the controller (103) is fixedly connected to the side wall of the inspection box (102), and the visual detector (104) is fixedly connected to the top of the inner cavity of the inspection box (102), characterized in that: The bottom of the inner cavity of the test box (102) is provided with a test adjustment mechanism (200) for adjusting the tilt angle of the vehicle screen to be tested in any direction. The top of the test adjustment mechanism (200) is provided with a mounting correction mechanism (300) for circumferential positioning and posture correction of the vehicle screen to be tested. The detection and adjustment mechanism (200) includes a drive motor (203), an adjustment rod (205), an adjustment tube one (206), and an adjustment tube two (207). The drive motor (203) is arranged in a ring array at the bottom of the inner cavity of the detection box (102). The adjustment rod (205) is rotatably disposed inside the detection box (102). The adjustment tube one (206) is rotatably connected to the outer wall of the adjustment rod (205). The adjustment tube two (207) is rotatably connected to the outer wall of the adjustment tube one (206).

2. The visual inspection device based on vehicle screen manufacturing and processing according to claim 1, characterized in that: The detection and adjustment mechanism (200) further includes a detection platform (201) fixedly connected to the inner wall of the detection box (102), a fixing plate (202) fixedly connected to the bottom end of the inner cavity of the detection box (102), a toothed plate (204) fixedly connected to the drive end of the upper surface of the drive motor (203), a toothed plate (205-1) and an adjustment plate (205-2) fixedly connected to the bottom and top outer walls of the adjustment rod (205) respectively, a toothed plate (206-1) and an adjustment plate (206-2) fixedly connected to the bottom and top outer walls of the adjustment tube (206) respectively, and a toothed plate (206-1) and an adjustment plate (206-2) fixedly connected to the bottom and top outer walls of the adjustment tube (206) respectively. The toothed plate four (207-1) and the adjusting plate three (207-2) are fixedly connected to the outer wall of the bottom and top of the adjusting tube two (207), the hinge rod one (208) is fixedly connected to the outer wall of the top of the adjusting plate one (205-2), the adjusting plate two (206-2) and the adjusting plate three (207-2), the adjusting bracket (209) is hinged to the outer wall of the hinge rod one (208), the hinge rod two (210) is hinged to the inner wall of the top of the adjusting bracket (209), and the circular plate one (211) is fixedly connected to the outer wall of the end of the hinge rod two (210) away from the adjusting bracket (209).

3. The visual inspection device based on vehicle screen manufacturing and processing according to claim 2, characterized in that: The drive motor (203) is fixedly connected to the upper surface of the fixed plate (202), and the bottom end of the adjusting rod (205) is rotatably connected to the upper surface of the fixed plate (202).

4. The visual inspection device based on vehicle screen manufacturing and processing according to claim 2, characterized in that: An electrical connection is established between the drive motor (203) and the controller (103), and the second regulating tube (207) is rotatably connected to the inner wall of the detection table (201).

5. A visual inspection device for vehicle screen manufacturing and processing according to claim 2, characterized in that: The toothed plates 2 (205-1), 3 (206-1) and 4 (207-1) are all engaged with the toothed plate 1 (204), and the tops of the adjusting plates 1 (205-2), 2 (206-2) and 3 (207-2) are at the same height.

6. A visual inspection device for vehicle screen manufacturing and processing according to claim 2, characterized in that: The installation and correction mechanism (300) includes a slide rod (301) slidably connected to the inner wall of the middle part of the circular plate (211), a suction cup (302) fixedly connected to the top of the slide rod (301), a buffer spring (303) sleeved on the outer wall of the top of the slide rod (301), a circular disc (304) slidably connected to the outer wall of the slide rod (301), an L-shaped plate (305) arranged in a ring array and fixedly connected to the outer wall of the circular disc (304), an annular inner toothed plate (306) fixedly connected to the inner wall of the top of the L-shaped plate (305), an adjusting roller (307) sleeved on the outer wall of the annular inner toothed plate (306), and a fixed connection. The adjustment roller (307) is connected to the inner wall of the inner wall of the annular inner toothed plate (306) with a circular plate two (308), a connecting rod (309) is fixedly connected between the two circular plates two (308), a fixing block one (310) is fixedly connected to the outer wall of the bottom end of the circular plate two (308) near the connecting rod (309), a fixing block two (311) is fixedly connected to the outer wall of the bottom end of the circular plate two (308) near the connecting rod (309), a brake plate (312) is rotatably connected to the outer wall of the fixing block two (311), and a return spring (313) is fixedly connected between the fixing block one (310) and the brake plate (312).

7. A visual inspection device for vehicle screen manufacturing and processing according to claim 6, characterized in that: The two ends of the buffer spring (303) are fixedly connected to the first circular plate (211) and the circular disc (304) respectively, and the L-shaped plate (305) slides through the inner wall of the first circular plate (211).

8. A visual inspection device for vehicle screen manufacturing and processing according to claim 6, characterized in that: The outer wall of the adjusting roller (307) is provided with a rubber contact strip, and the brake plate (312) is inclined to one side of the suction cup (302) with the fixed block two (311) as the axis.

9. A visual inspection device for vehicle screen manufacturing and processing according to claim 6, characterized in that: The end of the brake plate (312) away from the fixed block two (311) abuts against the inner tooth groove of the annular inner tooth plate (306).

10. A visual inspection method based on the production and processing of vehicle-mounted screens as described in any one of claims 1-9, characterized in that, Includes the following steps: Step 1: Place the in-vehicle screen to be tested with the concave side facing down above the mounting and correction mechanism (300) on top of the testing adjustment mechanism (200), so that the edge of the screen makes initial contact with the adjustment roller (307); Step 2: Press down on the vehicle screen. By adjusting the cooperation between the roller (307) and the annular inner toothed plate (306), the screen can be automatically positioned and corrected in the circumferential direction. At the same time, the screen is pressed down to drive the suction cup (302) to stick to the back of the screen, forming a vacuum adsorption to complete the flexible fixation. Step 3: Start the drive motor (203) through the controller (103), and through the meshing of the toothed plate and the linkage of the adjusting rod (205) and the adjusting tube, drive the circular plate (211) to tilt and flip or rotate horizontally, so as to adjust the position of the vehicle screen to be detected to the optimal detection posture below the vision detector (104); Step 4: Start the vision detector (104) to perform full-area vision acquisition and defect detection on the vehicle screen. If other areas need to be detected, repeat step 3 to adjust the posture, complete the full-area detection and transmit the data to the controller (103) for judgment. Step 5: The controller (103) outputs the test results, releases the suction cup (302) from the suction, takes out the qualified products and flows into the next process, and marks the unqualified products for repair or scrap. The test adjustment mechanism (200) is reset to wait for the next test.

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