Glass cover plate inspection apparatus and inspection method

Abstract

The application discloses a glass cover plate detection device and a detection method, and belongs to the technical field of detection equipment. The detection device comprises a bottom plate, a bearing assembly, a detection mechanism and an industrial computer. The bearing assembly comprises a sliding plate, an inclined placement table and a horizontal placement table. The sliding plate is arranged on the bottom plate in a directional sliding manner. The horizontal placement table and the inclined placement table are sequentially arranged on the surface of the sliding plate along the sliding direction. The detection mechanism comprises a visual detection camera. The visual detection camera is arranged to be kept in the sliding direction of the sliding plate. The detection end of the visual detection camera extends downwardly and obliquely so as to irradiate the inclined placement table and the horizontal placement table when the sliding plate slides directionally. The industrial computer is electrically connected with the visual detection camera. The surface information of a standard non-defective glass cover plate is pre-stored in the industrial computer. The glass cover plate detection device and the detection method can effectively improve the accuracy and the working efficiency of glass cover plate detection.

Description

Technical Field

[0001] This invention relates to the field of testing equipment technology, and in particular to a glass cover plate testing device and testing method. Background Technology

[0002] Glass covers are important components in various electronic parts, such as mobile phones. During the manufacturing process, glass covers may develop quality defects such as scratches and dents. Generally, they undergo strict surface quality inspection before being put into the next process.

[0003] Currently, surface quality inspection of glass covers is mostly carried out manually using high-powered microscopes. Some companies also use vision cameras, such as CCD line scan cameras or area scan cameras, but these can usually only be used for inspection at fixed angles, resulting in low accuracy and efficiency, and there are still cases of missed detections. Summary of the Invention

[0004] One advantage of this invention is that it provides a glass cover plate inspection device and inspection method, wherein a visual inspection camera is maintained at a predetermined tilt inspection angle, and a horizontal placement stage and a tilt placement stage carry the glass cover plate to be inspected and move directionally back and forth within the illumination range of the visual inspection camera, so that the visual inspection camera can collect surface information of the same glass cover plate at at least two illumination angles. Then, the collected information is analyzed and compared with the surface information of a standard defect-free glass cover plate to determine whether it is within a predetermined threshold range, thereby determining whether the surface quality of the glass cover plate is qualified. This can effectively improve the accuracy and efficiency of glass cover plate inspection quality and achieve good inspection results.

[0005] One advantage of this invention is that it provides a glass cover plate inspection device and inspection method, wherein the height and tilt angle of the visual inspection camera are adjustable, and the tilt angle of the tilting platform is also adjustable, which can greatly improve the flexibility when inspecting glass covers of different specifications and has a wide range of applications.

[0006] To achieve at least one of the above advantages of the present invention, in a first aspect, the present invention provides a glass cover plate detection device for detecting glass cover plates, comprising:

[0007] Base plate;

[0008] A support assembly, wherein the support assembly includes a slide plate, an inclined placement platform and a horizontal placement platform, wherein the slide plate is disposed on the base plate in a manner that allows it to slide directionally on the surface of the base plate, wherein the horizontal placement platform and the inclined placement platform are sequentially disposed on the surface of the slide plate along the sliding direction of the slide plate, and the inclined placement platform maintains a predetermined tilt angle relative to the slide plate;

[0009] An inspection mechanism, comprising a visual inspection camera configured to remain in the sliding direction of the slide plate, with the inspection end of the camera extending obliquely downwards to fully illuminate the inclined platform and the horizontal platform during the directional sliding of the slide plate; and

[0010] An industrial control computer, wherein the industrial control computer is electrically connected to the vision inspection camera, and the industrial control computer pre-stores the surface information of a standard defect-free glass cover plate. The industrial control computer is configured to determine whether the received acquisition information and the surface information corresponding to the standard defect-free glass cover plate are within a threshold range when the acquisition information is received from the vision inspection camera, and to output a non-compliance signal when the acquisition information exceeds the threshold range.

[0011] According to one embodiment of the present invention, the bearing assembly includes a telescopic element and a guide structure, wherein the guide structure includes a guide rail disposed on the surface of the base plate and a slider disposed on the bottom of the slide plate, the guide rail cooperating with the slider, the telescopic element being disposed on the base plate, and the slide plate being connected to the telescopic end of the telescopic element in a manner that allows it to be driven and directionally slidable.

[0012] According to one embodiment of the present invention, the bearing assembly further includes a tilt adjustment mechanism, wherein the tilt adjustment mechanism includes a rotating element and an adjustment frame, wherein the rotating element is fixedly disposed on the slide plate, and the adjustment frame is connected between the rotating end of the rotating element and the tilt placement platform, so that the rotating element can drive the tilt placement platform to rotate oriented along the sliding direction of the slide plate.

[0013] According to one embodiment of the present invention, the tilt adjustment mechanism further includes limiting plates symmetrically distributed on both sides of the sliding direction of the slide plate, the limiting plates being provided with arc-shaped grooves corresponding to the rotation direction of the tilting platform, and the adjustment frame being provided with guide members cooperating with the arc-shaped grooves.

[0014] According to one embodiment of the present invention, the detection mechanism further includes a U-shaped mounting base, which is connected to the base plate directly above the guide rail. The visual inspection camera is connected to the top of the U-shaped mounting base via an adjustment mechanism that allows it to move up and down. The adjustment mechanism includes an L-shaped mounting frame, two sets of sliding rods, and a telescopic cylinder. The visual inspection camera is disposed on the upper part of the mounting frame. The two sets of sliding rods are vertically cross-connected and hinged at both ends to slider seats. The slider seats at both ends are respectively directionally slidingly engaged with the mounting frame and the U-shaped mounting base. The telescopic cylinder is disposed on the U-shaped mounting base or the mounting frame, and the telescopic end of the telescopic cylinder is fixedly connected to the slider.

[0015] According to one embodiment of the present invention, a servo motor is mounted on the mounting bracket, and the output end of the servo motor is fixedly connected to the vision inspection camera, so that the detection end of the vision inspection camera can rotate along the sliding direction of the slide plate.

[0016] According to one embodiment of the present invention, there is one horizontal placement stage and one inclined placement stage, with the horizontal placement stage being close to the visual inspection camera and the inclined placement stage being located on the side of the horizontal placement stage away from the visual inspection camera.

[0017] According to one embodiment of the present invention, there are two horizontal placement platforms, which are sequentially distributed along the sliding direction of the slide plate, and one inclined placement platform is implemented, which is located on the side away from the visual inspection camera.

[0018] Secondly, the present invention also provides a method for detecting a glass cover plate, comprising the following steps:

[0019] S100, keep the visual inspection camera at a predetermined height and control its inspection end to be kept at a predetermined downward tilt inspection angle;

[0020] S200, control the horizontal placement stage and the inclined placement stage, which respectively carry glass cover plates, to move back and forth in the direction of the illumination range of the visual inspection camera at least twice, wherein during the second and subsequent reciprocating movements, the position of the glass cover plates on the horizontal placement stage and the inclined placement stage is changed, so that the visual inspection camera can collect surface information of the same glass cover plate at at least two illumination angles.

[0021] S300, compare and analyze whether the surface information of the glass cover plate captured by the visual inspection camera at at least two illumination angles is consistent with the surface information of the standard defect-free glass cover plate within a predetermined threshold range, and output a non-compliance signal when it exceeds the threshold range.

[0022] According to one embodiment of the present invention, the tilt angle and height of the visual inspection camera are adjustable, the tilt angle of the tilting platform is adjustable, the horizontal platform and the tilting platform are sequentially distributed in the direction of directional movement, and the horizontal platform is close to the visual inspection camera. The horizontal platform is implemented as one or two.

[0023] These and other objects, features and advantages of the present invention will become fully apparent from the following detailed description. Attached Figure Description

[0024] Figure 1 A three-dimensional structural schematic diagram of a glass cover plate detection device according to a preferred embodiment of this application is shown.

[0025] Figure 2 A side view of a preferred embodiment of the glass cover plate detection device of this application is shown.

[0026] Reference numerals: 10-Base plate, 21-Slide plate, 22-Horizontal placement platform, 23-Inclined placement platform, 24-Fastener, 25-Telescopic element, 26-Guide rail, 27-Slider, 28-Rotating element, 29-Adjusting frame, 291-Guide component, 210-Limiting plate, 201-Arc groove, 31-Vision inspection camera, 311-Inspection end, 32-U-shaped mounting base, 33-Mounting frame, 34-Slide rod, 341-Slider seat, 35-Telescopic cylinder, 36-Servo motor. Detailed Implementation

[0027] The following description is intended to disclose the present invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the invention.

[0028] Those skilled in the art should understand that, in the disclosure of this specification, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limiting the present invention.

[0029] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0030] refer to Figure 1 and Figure 2 A preferred embodiment of the present invention, a glass cover plate testing device, will be described in detail below. The glass cover plate testing device is used to detect whether the surface quality of the glass cover plate is qualified, mainly in terms of detection accuracy and detection efficiency.

[0031] Specifically, the glass cover plate testing device includes a base plate 10, a load-bearing component, a testing mechanism, and an industrial control computer;

[0032] The supporting assembly includes a slide plate 21, an inclined placement platform 23, and a horizontal placement platform 22. The slide plate 21 is disposed on the base plate 10 in such a way that it can slide directionally on the surface of the base plate 10. The horizontal placement platform 22 and the inclined placement platform 23 are used to place a glass cover plate extending in a horizontal direction and a glass cover plate extending in an inclined direction, respectively. At the same time, the horizontal placement platform 22 and the inclined placement platform 23 are sequentially disposed on the surface of the slide plate 21 along the sliding direction of the slide plate 21, and the inclined placement platform 23 maintains a predetermined tilt angle relative to the slide plate 21.

[0033] The detection mechanism includes a visual inspection camera 31, which is configured to be held in the sliding direction of the slide plate 21, and the detection end 311 of the visual inspection camera 31 extends downward at an angle so that it can fully illuminate the inclined placement platform 23 and the horizontal placement platform 22 when the slide plate 21 slides in an oriented manner. In this way, when the slide plate 21 drives the horizontal placement platform 22 and the inclined placement platform 23 to slide in an oriented manner, the glass cover plates on the horizontal placement platform 22 and the inclined placement platform 23 will pass through the detection range of the visual inspection camera 31 and then the visual inspection camera 31 will collect the surface information at the corresponding illumination angle.

[0034] Taking an example where there is one horizontal placement stage 22 and one inclined placement stage 23, and the visual inspection camera 31, the horizontal placement stage 22, and the inclined placement stage 23 are distributed from left to right, with the inclined placement stage 23 directly facing the detection end 311 of the visual inspection camera 31, the following detailed description will be provided:

[0035] Method 1: Define the glass cover plate on the horizontal placement platform 22 as the first glass cover plate and the glass cover plate on the inclined placement platform 23 as the second glass cover plate. The slide plate 21 moves the first and second glass cover plates to the left. Since the visual inspection camera 31 and the inclined placement platform 23 are set at an angle relative to each other, the detection end 311 and the horizontal placement platform 22 maintain a certain angle and face the inclined placement platform 23, that is, maintain a 90° angle for vertical illumination. The visual inspection camera 31 will sequentially collect the surface information of the first glass cover plate under the inclined illumination angle and the surface information of the second glass cover plate under the vertical illumination angle. Then, after the slide plate 21 is reset, the positions of the first and second glass cover plates are swapped, and the slide plate 21 is moved again. The visual inspection camera 31 will sequentially collect the surface information of the second glass cover plate under the inclined illumination angle and the surface information of the first glass cover plate under the vertical illumination angle.

[0036] Method 2: First, place a glass cover plate, defined as the third glass cover plate. Whether the third glass cover plate is placed on the horizontal platform 22 or the inclined platform 23 (taking the horizontal platform 22 as an example), during the first movement of the slide plate 21, the visual inspection camera 31 will detect the surface information of the third glass cover plate at the inclined illumination angle. Then, it will control the slide plate 21 to reset, transferring the third glass cover plate to the inclined platform 23. Then, the fourth glass cover plate is placed on the horizontal platform 22. When it moves again... When the sliding plate 21 is moved, the visual inspection camera 31 will collect the surface information of the third glass cover under the vertical illumination angle and the surface information of the fourth glass cover under the tilt illumination angle. At this time, the surface information of the third glass cover under the tilt illumination angle and the surface information under the vertical illumination angle have been collected. When both surface information are qualified, the third glass cover can directly flow into the next process. Then, in the next round of movement, the surface information of the fourth glass cover under the vertical illumination angle and the surface information of the fifth glass cover under the tilt illumination angle will be detected at the same time, and so on.

[0037] It is worth mentioning that the inclined placement stage 23 may not be directly facing the detection end of the visual inspection camera 31. Since the inclined placement stage 23 maintains a predetermined tilt angle with the slide plate 21, and the horizontal placement stage 22 is placed parallel to the slide plate 21, there must be a certain tilt angle between the inclined placement stage 23 and the horizontal placement stage 22. After the slide plate 21 moves back and forth twice, the visual inspection camera 31 will collect the surface information of the same glass cover plate under two tilt illumination angles. This situation has a better detection effect, especially for glass cover plates that need tilt illumination detection.

[0038] The industrial control computer is electrically connected to the visual inspection camera 31, and the industrial control computer has pre-stored the surface information of the standard defect-free glass cover. At the same time, the industrial control computer is configured to determine whether the received information and the surface information corresponding to the standard defect-free glass cover are within a threshold range when it receives the information collected by the visual inspection camera 31, and to output a non-compliance signal when it exceeds the threshold range.

[0039] Therefore, regardless of whether Method 1 or Method 2 is used, two glass cover plates can be detected simultaneously during normal operation. Only two directional back-and-forth movements are needed to collect surface information of the same glass cover plate at two illumination angles. Compared to collecting surface information from only one fixed angle, this significantly improves the accuracy and efficiency of glass cover plate surface quality detection. It is particularly noteworthy that this glass cover plate detection device requires only one vision inspection camera 31, such as a CCD area array camera. Multiple glass cover plates can be quickly inspected within a small, fixed area, effectively controlling detection costs and the area occupied. Furthermore, the device has a simple overall structure, is easy to operate, and facilitates debugging and subsequent maintenance.

[0040] Furthermore, regardless of whether the inclined placement platform 23 is directly facing the detection end 311 of the visual inspection camera 31 or not, there are two sets of standard defect-free glass cover plate surface information pre-stored in the industrial control computer. These two sets of surface information correspond to the surface information of the glass cover plate on the horizontal placement platform 22 and the inclined placement platform 23 collected by the visual inspection camera 31, respectively, that is, the correspondence of the tilt angle. Only in this way can the analysis and comparison of the surface quality of the glass cover plate be feasible.

[0041] For example, when the detection end 311 of the visual inspection camera 31 is tilted at 45° and the tilted placement stage 23 is also tilted at 45°, the horizontal placement stage 22 has a 45° angle relative to the detection end 311, while the tilted placement stage 23 is directly opposite the detection end 311, i.e., maintaining a 90° angle. Then, the two surface information of the standard defect-free glass cover plate pre-stored in the industrial control computer are collected when maintaining 45° and when maintaining 90°, respectively.

[0042] In addition, fasteners 24, such as set screws, are provided on the periphery of both the horizontal placement platform 22 and the inclined placement platform 23 for fixing the glass cover.

[0043] In one embodiment, the supporting assembly includes a telescopic element 25 and a guide structure. The guide structure includes a guide rail 26 disposed on the surface of the base plate 10 and a slider 27 disposed at the bottom of the slide plate 21, with the guide rail 26 cooperating with the slider 27. The telescopic element 25 is disposed on the base plate 10, and the slide plate 21 is connected to the telescopic end of the telescopic element 25 in a directional sliding manner. Under the guiding action of the guide structure and the driving action of the telescopic element 25, the accuracy of the movement direction of the slide plate 21 can be ensured, thereby ensuring that all surface information of the glass cover plates on the horizontal placement platform 22 and the inclined placement platform 23 can be collected by the visual inspection camera 31 to ensure the accuracy of the inspection of the glass cover plates.

[0044] The telescopic element 25 can be implemented as a telescopic cylinder or a hydraulic rod, or as a screw drive structure, including a servo motor, a screw set at the rotating end of the servo motor, a screw nut sleeved on the screw, and a limiting structure that limits the screw nut so that it can only move in a directional direction along the extension direction of the screw. The screw nut is fixedly connected to the slide plate, so that when the servo motor is running, the slide plate can be driven to move in a directional direction through the cooperation of the screw and the screw nut, with precise movement speed and start / stop timing.

[0045] More preferably, the supporting assembly further includes a tilt adjustment mechanism, wherein the tilt adjustment mechanism includes a rotating element 28 and an adjustment frame 29, wherein the rotating element 28 is fixedly mounted on the slide plate 21, and the adjustment frame 29 is connected between the rotating end of the rotating element 28 and the tilting platform 23, so that the rotating element 28 can drive the tilting platform 23 to rotate in the sliding direction of the slide plate 21, thereby keeping the tilting platform 23 at a suitable tilt angle. This allows the visual inspection camera 31 to collect surface information of the glass cover plate on the tilting platform 23 at different tilt angles. Then, this information is combined with the surface information of the glass cover plate at a fixed tilt angle collected by the visual inspection camera 31 when the glass cover plate is placed on the horizontal platform 22, forming surface information at two angles to determine whether the surface quality of the glass cover plate is qualified. This makes the inspection more flexible and the inspection range wider. In addition, it should be emphasized that after the tilt adjustment mechanism adjusts the tilt angle of the tilting platform 23, the surface information of the standard defect-free glass cover plate pre-stored in the industrial control computer is also modified accordingly, so that the tilt angle of the surface information to be inspected and the standard surface information are consistent.

[0046] More preferably, the tilt adjustment mechanism further includes limiting plates 210 symmetrically distributed on both sides of the sliding direction of the slide plate 21. The limiting plates 210 are provided with arc-shaped grooves 201 corresponding to the rotation direction of the tilting platform 23. Meanwhile, the adjustment frame 29 is provided with guide members 291 that cooperate with the arc-shaped grooves 201, such as guide posts or limiting pins. This allows the rotating element 28 to assist in ensuring the accuracy and stability of the rotation of the tilting platform 23 when adjusting the tilt angle of the tilting platform 23.

[0047] More preferably, the detection mechanism further includes a U-shaped mounting base 32, wherein the U-shaped mounting base 32 is connected to the base plate 10 directly above the guide rail 26. Meanwhile, the visual inspection camera 31 is connected to the top of the U-shaped mounting base 32 through an adjustment mechanism so as to be able to move up and down, so as to facilitate flexible adjustment of the height of the visual inspection camera 31, thereby forming different illumination tilt angles relative to the horizontal placement platform 22 and the tilted placement platform 23, and thus being able to collect surface information of the glass cover at different tilt angles.

[0048] More specifically, the adjustment mechanism includes an L-shaped mounting bracket 33, two sets of sliding rods 34, and a telescopic cylinder 35. The visual inspection camera 31 is disposed on the upper part of the mounting bracket 33. The two sets of sliding rods 34 are vertically cross-connected, with slider seats 341 hinged at both ends. The slider seats 341 at both ends are directionally slidingly engaged with the mounting bracket 33 and the U-shaped mounting base 32, respectively. Meanwhile, the telescopic cylinder 35 is disposed on the U-shaped mounting base 32 or the mounting bracket 33, and the telescopic end of the telescopic cylinder 35 is fixedly connected to the slider 341. Thus, the telescopic cylinder 35 can move the slider 341 and the sliding rods 34 by extending and retracting, thereby adjusting the height of the visual inspection camera 31 accordingly.

[0049] More preferably, a servo motor 36 is mounted on the mounting bracket 33, and the output end of the servo motor 36 is fixedly connected to the visual inspection camera 31, so that the detection end 311 of the visual inspection camera 31 can rotate along the sliding direction of the slide plate 21. In this way, combined with the adjustment mechanism to adjust the height of the visual inspection camera 31, the tilt angle range of the visual inspection camera 31 can be further increased, thereby further improving the flexibility and detection range of the detection device.

[0050] In another preferred embodiment, there are two horizontal placement platforms 22, which are sequentially distributed along the sliding direction of the slide plate 21. Simultaneously, there is only one inclined placement platform 23, located on the side away from the visual inspection camera 31. This allows for the simultaneous placement of three glass covers. Following the aforementioned method one, after three reciprocating movements, the visual inspection camera 31 can collect surface information of the same glass cover under three different illumination angles. This information is then compared and analyzed with the pre-stored surface information of a standard defect-free glass cover under the corresponding three illumination angles to determine if it exceeds a threshold range. This further improves the accuracy of surface quality inspection of the glass covers. Crucially, this improvement in accuracy does not increase the investment in inspection equipment, thus effectively controlling inspection costs and the area occupied by the inspection.

[0051] Secondly, based on the same working principle described above, the present invention also provides a method for detecting glass cover plates, comprising the following steps:

[0052] S100, keep the visual inspection camera at a predetermined height and control its inspection end to be kept at a predetermined downward tilt inspection angle;

[0053] S200, control the horizontal placement stage and the inclined placement stage, which respectively carry glass cover plates, to move back and forth in the direction of the illumination range of the visual inspection camera at least twice, wherein during the second and subsequent reciprocating movements, the position of the glass cover plates on the horizontal placement stage and the inclined placement stage is changed, so that the visual inspection camera can collect surface information of the same glass cover plate at at least two illumination angles.

[0054] S300, compare and analyze whether the surface information of the glass cover plate captured by the visual inspection camera at at least two illumination angles is consistent with the surface information of the standard defect-free glass cover plate within a predetermined threshold range, and output a non-compliance signal when it exceeds the threshold range.

[0055] More preferably, the tilt angle and height of the visual inspection camera are adjustable, and the tilt angle of the tilting platform is also adjustable. In the direction of directional movement, the horizontal platform and the tilting platform are distributed sequentially, and the horizontal platform is close to the visual inspection camera. The horizontal platform is implemented as one or two.

[0056] It should be noted that the surface information of the glass cover can be surface gloss information or image information.

[0057] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the invention. The advantages of the present invention have been fully and effectively realized. The functional and structural principles of the present invention have been demonstrated and explained in the embodiments; any variations or modifications can be made to the implementation of the present invention without departing from these principles.

Claims

1. A glass cover plate testing device, used for testing glass cover plates, characterized in that, include: Base plate; A support assembly, wherein the support assembly includes a slide plate, an inclined placement platform and a horizontal placement platform, wherein the slide plate is disposed on the base plate in a manner that allows it to slide directionally on the surface of the base plate, wherein the horizontal placement platform and the inclined placement platform are sequentially disposed on the surface of the slide plate along the sliding direction of the slide plate, and the inclined placement platform maintains a predetermined tilt angle relative to the slide plate; An inspection mechanism, wherein the inspection mechanism includes a visual inspection camera, wherein the visual inspection camera is configured to remain in the sliding direction of the slide plate, and the inspection end of the visual inspection camera extends downward at an angle so as to fully illuminate the inclined placement platform and the horizontal placement platform when the slide plate slides in an oriented manner. The horizontal placement platform and the inclined placement platform carry the glass cover plate to be inspected and move back and forth in an oriented manner within the illumination range of the visual inspection camera, so that the visual inspection camera can collect surface information of the same glass cover plate at at least two illumination angles. as well as An industrial control computer, wherein the industrial control computer is electrically connected to the vision inspection camera, and the industrial control computer pre-stores the surface information of a standard defect-free glass cover plate. The industrial control computer is configured to determine whether the received acquisition information and the surface information corresponding to the standard defect-free glass cover plate are within a threshold range when the acquisition information is received from the vision inspection camera, and to output a non-compliance signal when the acquisition information exceeds the threshold range.

2. The glass cover plate detection device as described in claim 1, characterized in that, The load-bearing assembly includes a telescopic element and a guide structure, wherein the guide structure includes a guide rail disposed on the surface of the base plate and a slider disposed on the bottom of the slide plate, the guide rail cooperating with the slider, the telescopic element being disposed on the base plate, and the slide plate being connected to the telescopic end of the telescopic element in a manner that allows it to be driven and directionally slidable.

3. The glass cover plate detection device as described in claim 2, characterized in that, The load-bearing assembly further includes a tilt adjustment mechanism, wherein the tilt adjustment mechanism includes a rotating element and an adjustment frame, wherein the rotating element is fixedly mounted on the slide plate, and the adjustment frame is connected between the rotating end of the rotating element and the tilting platform, so that the rotating element can drive the tilting platform to rotate oriented along the sliding direction of the slide plate.

4. The glass cover plate detection device as described in claim 3, characterized in that, The tilt adjustment mechanism further includes limiting plates symmetrically distributed on both sides of the sliding direction of the slide plate. The limiting plates are provided with arc-shaped grooves corresponding to the rotation direction of the tilting platform, and the adjustment frame is provided with guide members that cooperate with the arc-shaped grooves.

5. The glass cover plate detection device as described in claim 4, characterized in that, The detection mechanism also includes a U-shaped mounting base, which is connected to the base plate directly above the guide rail. The visual inspection camera is connected to the top of the U-shaped mounting base via an adjustment mechanism that allows it to move up and down. The adjustment mechanism includes an L-shaped mounting frame, two sets of sliding rods, and a telescopic cylinder. The visual inspection camera is located on the upper part of the mounting frame. The two sets of sliding rods are vertically cross-connected and hinged to slider seats at both ends. The slider seats at both ends are directionally slidingly engaged with the mounting frame and the U-shaped mounting base, respectively. The telescopic cylinder is located on the U-shaped mounting base or the mounting frame, and the telescopic end of the telescopic cylinder is fixedly connected to the slider.

6. The glass cover plate detection device as described in claim 5, characterized in that, A servo motor is mounted on the mounting bracket, and the output end of the servo motor is fixedly connected to the vision inspection camera so that the detection end of the vision inspection camera can rotate along the sliding direction of the slide plate.

7. The glass cover plate detection device as described in claim 6, characterized in that, There is one horizontal placement stage and one inclined placement stage, with the horizontal placement stage close to the visual inspection camera and the inclined placement stage located on the side of the horizontal placement stage away from the visual inspection camera.

8. The glass cover plate detection device as described in claim 6, characterized in that, There are two horizontal placement platforms, which are distributed sequentially along the sliding direction of the slide plate. The inclined placement platform is implemented as one, and the inclined placement platform is located on the side away from the visual inspection camera.

9. A method for testing glass cover plates, characterized in that, Includes the following steps: S100, keep the visual inspection camera at a predetermined height and control its inspection end to be kept at a predetermined downward tilt inspection angle; S200, control the horizontal and inclined placement stages, each carrying a glass cover plate, to reciprocate at least twice within the illumination range of the visual inspection camera, wherein during the second and subsequent reciprocating movements, the positions of the glass cover plates on the horizontal and inclined placement stages are changed, so that the visual inspection camera can acquire surface information of the same glass cover plate at at least two illumination angles. S300, compare and analyze whether the surface information of the glass cover plate captured by the visual inspection camera at at least two illumination angles is consistent with the surface information of the standard defect-free glass cover plate within a predetermined threshold range, and output a non-compliance signal when it exceeds the threshold range.

10. The glass cover plate testing method as described in claim 9, characterized in that, The tilt angle and height of the visual inspection camera are adjustable, and the tilt angle of the tilting platform is adjustable. In the direction of directional movement, the horizontal platform and the tilting platform are distributed sequentially, and the horizontal platform is close to the visual inspection camera. The horizontal platform is implemented as one or two.

Images