Visual inspection device for a screen

Abstract

The utility model discloses a visual inspection device for screen belongs to screen module detection technical field, which mainly comprises mounting base body, frame body, upper CCD camera, auxiliary displacement mechanism and carrier plate mechanism. Wherein, the frame body and top plate are equipped on the mounting base body, the bottom end of the top plate is equipped with upper CCD camera, the top end of mounting base body is equipped with auxiliary displacement mechanism, the driving end of auxiliary displacement drive motor in the auxiliary displacement mechanism is equipped with first connecting block, the driving end of auxiliary displacement drive motor is equipped with threaded rod, the other end of threaded rod is rotatably provided with second connecting block, the first connecting block and second connecting block are fixedly equipped with auxiliary guide rod, the carrier plate mechanism is slidably connected with auxiliary guide rod, and the carrier plate mechanism is connected with threaded rod. Compared with prior art, the utility model improves the accuracy and consistency of detection result, reduces the working strength of quality inspection personnel, improves the detection efficiency to a certain extent, and therefore has higher practicality.

Description

Technical Field

[0001] This utility model relates to the field of screen module testing technology, and in particular to a visual inspection device for screens. Background Technology

[0002] In the classification of screen display technologies, LED and LCD are the two mainstream technologies. Among them, LCD screens occupy an important market position in the mobile terminal field due to their mature display technology, with typical applications including portable devices such as smartphones.

[0003] Currently, the factory testing of LCD screens typically relies on manual quality inspection. The general steps are as follows: Quality inspectors adjust the screen's display parameters through a control mechanism to achieve different brightness and color states; then, they use their naked eyes or visual comparison with a standard color chart to analyze the luminance and color of the pixels on the screen, thereby determining whether it is qualified.

[0004] However, the traditional detection methods mentioned above have certain limitations—differences in individual visual sensitivity can affect the human eye's ability to distinguish subtle color differences, which generally leads to a decrease in the accuracy and consistency of the detection results. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a visual inspection device for screens, primarily comprising a mounting base, a frame, an upper CCD camera, an auxiliary displacement mechanism, and a carrier plate mechanism. In use, the auxiliary displacement mechanism moves the carrier plate mechanism and the screen to be inspected, placed on the carrier plate mechanism, together to the inspection end of the upper CCD camera. This design automatically analyzes the luminance and chromaticity of the pixels on the screen to determine whether it meets the requirements. Compared to existing technologies, this utility model improves the accuracy and consistency of inspection results, reduces the workload of quality inspectors, and improves inspection efficiency to a certain extent; therefore, it has high practicality.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A visual inspection device for a screen includes:

[0008] Mounting substrate;

[0009] A frame is disposed at the top of the mounting base, and a top plate is provided at the top of the frame;

[0010] An upper CCD camera is positioned at the center of the bottom end of the top plate;

[0011] An auxiliary displacement mechanism, directly or indirectly disposed at the top of the mounting base, includes:

[0012] An auxiliary displacement drive motor has a first connecting block at its drive end, which extends to the outside of the first connecting block.

[0013] A threaded rod, one end of which is connected to the drive end of the auxiliary displacement drive motor, and the other end is rotatably equipped with a second connecting block;

[0014] An auxiliary guide rod, one end of which is fixedly connected to the first connecting block and the other end of which is fixedly connected to the second connecting block, and the auxiliary guide rod is located below the threaded rod;

[0015] The inner wall of the carrier plate mechanism is slidably connected to the auxiliary guide rod, and the inner wall of the carrier plate mechanism is threadedly connected to the threaded rod.

[0016] Furthermore, the carrier plate mechanism includes:

[0017] The sliding seat has its inner wall slidably connected to the peripheral wall of the auxiliary guide rod, and the inner wall of the sliding seat is threadedly connected to the peripheral wall of the threaded rod. That is, the sliding seat can move left and right along the length direction of the auxiliary guide rod under the action of the auxiliary displacement drive motor and the threaded rod.

[0018] A support panel is disposed at the top of the sliding base.

[0019] Furthermore, the bearing surface of the bearing panel is provided with a rubber anti-slip layer.

[0020] Furthermore, the carrier plate mechanism also includes:

[0021] Supporting components;

[0022] The supporting member is used to hold the front and rear ends of the screen to be tested, and the supporting member is symmetrically arranged at the front and rear ends of the supporting panel.

[0023] Furthermore, the supporting member includes:

[0024] A connecting part, the side of which is connected to the end of the supporting panel;

[0025] A telescopic part is provided at the top of the connecting part, and the telescopic end of the telescopic part extends toward the middle of the supporting panel;

[0026] The supporting part has one end connected to the telescopic end of the telescopic part.

[0027] Furthermore, a cushioning pad is provided at the other end of the supporting part.

[0028] Furthermore, the visual inspection device for the screen also includes:

[0029] Side-mounted CCD camera;

[0030] The side CCD camera is used to automatically detect the brightness and chromaticity of the side of the screen, and the side CCD camera is located on one side of the carrier plate mechanism;

[0031] in,

[0032] A side plate is provided on the side of the top plate and extending along the height direction of the frame, and the side CCD camera is provided on the side of the side plate facing the threaded rod.

[0033] Furthermore, the visual inspection device for the screen also includes:

[0034] Auxiliary rotating mechanism;

[0035] The auxiliary rotation mechanism is used to drive the auxiliary displacement mechanism and the carrier plate mechanism to rotate as a whole. The outer wall of the auxiliary rotation mechanism is fixedly connected to the inner wall of the first connecting block, and the outer wall of the auxiliary rotation mechanism is fixedly connected to the inner wall of the second connecting block.

[0036] Furthermore, the auxiliary rotating mechanism includes:

[0037] A first support is disposed on one side of the mounting base;

[0038] An auxiliary rotation drive motor is disposed at the top of the first support body;

[0039] The second support is disposed at the top of the mounting base, and the second support is located on the side of the second connecting block away from the first connecting block;

[0040] The bearing is located at the top of the second support body;

[0041] A rotating rod has one end connected to the drive end of the auxiliary rotary drive motor, and the other end passing through the first connecting block and the second connecting block in sequence and rotatably connected to the bearing. The peripheral wall of the rotating rod is fixedly connected to the inner wall of the first connecting block, and the peripheral wall of the rotating rod is fixedly connected to the inner wall of the second connecting block.

[0042] Furthermore, the visual inspection device for the screen also includes:

[0043] Cover;

[0044] The cover is used to prevent external light from shining on the screen on the carrier plate mechanism. The cover is rectangular, with an opening at the bottom. The top of the inner wall of the cover contacts the top of the top plate, and the inner wall of the cover surrounds the periphery of the mounting base.

[0045] The beneficial effects of this utility model are:

[0046] 1. The visual inspection device for screens provided by this utility model is equipped with an auxiliary displacement mechanism. The auxiliary displacement drive motor in the auxiliary displacement mechanism can drive the threaded rod and the carrier plate mechanism set on the threaded rod to rotate, and the inner wall of the carrier plate mechanism is slidably connected to the auxiliary guide rod. Because the auxiliary guide rod does not shift relative to the auxiliary displacement drive motor, under the action of thread engagement, the auxiliary guide rod can move the carrier plate mechanism and the screen to be inspected placed on the carrier plate mechanism in the horizontal direction. This design enables the carrier plate mechanism and the screen to be inspected to move left and right as a whole along the length of the auxiliary guide rod, which reduces the workload of quality inspectors to a certain extent.

[0047] 2. The visual inspection device for screens is equipped with an upper CCD camera, which can take pictures of the screen at its inspection end and automatically analyze the luminance and chromaticity of the pixels on the screen; then, it outputs the inspection results and inspection data. This design improves the accuracy and consistency of the inspection results and improves the inspection efficiency to a certain extent. Attached Figure Description

[0048] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this utility model;

[0049] Figure 2 This utility model Figure 1 Another perspective;

[0050] Figure 3 This is a schematic diagram showing the carrier plate mechanism in the detection end of the upper CCD camera in Embodiment 1 of this utility model. Figure 2 Another perspective);

[0051] Figure 4 This is a simplified structural diagram of the carrier plate mechanism of this utility model;

[0052] Figure 5 This is a schematic diagram of Embodiment 1 of the present invention in a specific application scenario;

[0053] Figure 6 This is a schematic diagram of the overall structure of Embodiment 2 of this utility model;

[0054] Figure 7 This is a structural schematic diagram of Embodiment 2 of the present invention in a specific application scenario. Figure 6 Another perspective).

[0055] Figure label:

[0056] 1. Install the base;

[0057] 2. Frame; 21. Top panel; 22. Side panels;

[0058] 3. Install a CCD camera;

[0059] 4. Auxiliary displacement mechanism; 41. Auxiliary displacement drive motor; 42. First connecting block; 43. Threaded rod; 44. Second connecting block; 45. Auxiliary guide rod;

[0060] 5. Carrier plate mechanism; 51. Sliding seat; 52. Bearing panel; 53. Supporting component; 531. Connecting part; 532. Telescopic part; 533. Supporting part;

[0061] 6. Side-mounted CCD camera;

[0062] 7. Auxiliary rotating mechanism; 71. First support body; 72. Auxiliary rotating drive motor; 73. Second support body; 74. Bearing; 75. Rotating rod;

[0063] 8. Control mechanism;

[0064] 9. Cover body. Detailed Implementation

[0065] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0066] Example 1

[0067] As attached Figure 1-5 As shown, this embodiment discloses a visual inspection device for screens to improve the accuracy and consistency of inspection results. It mainly includes a mounting base 1, a frame 2, an upper CCD camera 3, an auxiliary displacement mechanism 4, and a carrier plate mechanism 5. The mounting base 1 has a frame 2 at its top, and the upper CCD camera 3 is mounted on the frame 2. The detection end of the upper CCD camera 3 is equipped with the auxiliary displacement mechanism 4, which in turn has the carrier plate mechanism 5 mounted on it. The auxiliary displacement mechanism 4 can automatically move the carrier plate mechanism 5 and the screen to be inspected placed on the carrier plate mechanism 5 towards the detection end of the upper CCD camera 3, and the upper CCD camera 3 can automatically perform inspection operations on the screen to be inspected at its detection end.

[0068] In use, quality inspectors first place the screen to be inspected on the bearing surface of the carrier mechanism 5; then, they pre-input the corresponding control parameters into a control mechanism 8 to meet the quality inspection requirements of the screen; next, the control mechanism 8 sends control commands to the auxiliary displacement mechanism 4 and the upper CCD camera 3 respectively, so that the auxiliary displacement drive motor 41 and the upper CCD camera 3 perform corresponding actions; during this process, the drive end of the auxiliary displacement drive motor 41 can drive the threaded rod 43 and the carrier mechanism 5 set on the threaded rod 43 to rotate, and the carrier mechanism 5 is slidably connected to the auxiliary guide rod 45 below the threaded rod 43; because the auxiliary guide rod 45 does not have a relative positional offset relative to the auxiliary displacement drive motor 41, the carrier mechanism 5 will change from rotational motion to linear motion along the length direction of the auxiliary guide rod 45, that is: under the action of thread engagement, the auxiliary guide rod 45 can carry the carrier mechanism 5 and the screen to be inspected placed on the carrier mechanism 5 to move horizontally. The design enables the carrier plate mechanism 5 and the screen to be inspected to move left and right along the length of the auxiliary guide rod 45 as a whole, which reduces the workload of quality inspectors to a certain extent. When the screen to be inspected moves to the detection end of the upper CCD camera 3 and is recognized by the upper CCD camera 3, the upper CCD camera 3 feeds back the current position information of the screen to the control mechanism 8. Then, the control mechanism 8 sends a stop command to the auxiliary displacement drive motor 41. Then, the upper CCD camera 3 can take pictures of the screen at its detection end and automatically analyze the luminance and chromaticity of the pixels in the screen. Then, the upper CCD camera 3 outputs the detection results and detection data and feeds back the corresponding information to the control mechanism 8. Quality inspectors can view the corresponding information through the control mechanism 8. This is existing technology, and the relevant content can be roughly referred to in the existing patent with announcement number CN219016136U. This design improves the accuracy and consistency of the detection results to a certain extent and also improves the detection efficiency.

[0069] The specific structure of the visual inspection device is as follows: it includes a mounting base 1, a frame 2 at the top of the mounting base 1, and a top plate 21 at the top of the frame 2; an upper CCD camera 3 is disposed in the middle of the bottom end of the top plate 21, the upper CCD camera 3 being used to automatically detect the brightness and chromaticity of the screen front located at its detection end; an auxiliary displacement mechanism 4 is directly or indirectly disposed at the top of the mounting base 1, the auxiliary displacement mechanism 4 having an auxiliary displacement drive motor 41, the drive end of the auxiliary displacement drive motor 41 having a first connecting block 42 and extending to the outside of the first connecting block 42, that is, the drive end of the auxiliary displacement drive motor 41 passes through the first connecting block 42; the auxiliary displacement mechanism 4 has an auxiliary displacement drive motor 41. A threaded rod 43 is provided at the driving end of the auxiliary displacement drive motor 41; a second connecting block 44 is rotatably provided at the end of the threaded rod 43 away from the auxiliary displacement drive motor 41; an auxiliary guide rod 45 is fixedly provided on the side of the second connecting block 44 near the threaded rod 43, and the end of the auxiliary guide rod 45 away from the second connecting block 44 is fixedly connected to the first connecting block 42, and the auxiliary guide rod 45 is located below the threaded rod 43. There is a space for movement between the auxiliary guide rod 45 and the threaded rod 43, that is, the auxiliary guide rod 45 will not affect the rotation of the threaded rod 43; a carrier plate mechanism 5 is slidably provided on the peripheral wall of the auxiliary guide rod 45, and the inner wall of the carrier plate mechanism 5 is threadedly connected to the peripheral wall of the threaded rod 43. Compared with the prior art, this utility model improves the accuracy and consistency of the test results, reduces the workload of quality inspectors, and improves the test efficiency to a certain extent. Therefore, it has high practicality.

[0070] In a specific application scenario, as shown in the appendix Figure 3 As shown, the carrier plate mechanism 5 mainly includes a sliding seat 51 and a bearing panel 52; wherein, the inner wall of the sliding seat 51 is slidably connected to the peripheral wall of the auxiliary guide rod 45, and the inner wall of the sliding seat 51 is threadedly connected to the peripheral wall of the threaded rod 43, that is, the sliding seat 51 can move left and right along the length direction of the auxiliary guide rod 45 under the action of the auxiliary displacement drive motor 41 and the threaded rod 43; the top of the sliding seat 51 is provided with a bearing panel 52, which is used to support the screen to be tested.

[0071] Furthermore, the bearing surface of the bearing panel 52 is provided with a rubber anti-slip layer (not marked in the figure). This design can prevent the screen to be tested from sliding off the bearing panel 52 to the mounting base 1 and causing damage during the process of the auxiliary displacement mechanism 4 driving the carrier plate mechanism 5 to move.

[0072] In a specific application scenario, as shown in the appendix Figure 3 and appendix Figure 4As shown, the carrier plate mechanism 5 is also provided with a supporting member 53; wherein, the supporting member 53 is symmetrically arranged at the front and rear ends of the carrier panel 52, and the supporting member 53 is used to abut the front and rear ends of the screen to be tested. This design can further prevent the screen to be tested from sliding from the carrier panel 52 to the mounting base 1 and causing damage during the process of the auxiliary displacement mechanism 4 driving the carrier plate mechanism 5 to move. Normally, the left side of the aforementioned sliding seat 51 is provided with a threaded hole (not shown in the figure) and a sliding hole (not marked in the figure), and the threaded hole is located above the sliding hole. The inner wall of the threaded hole is threadedly connected to the peripheral wall of the threaded rod 43, and the inner wall of the sliding hole is slidably connected to the peripheral wall of the auxiliary guide rod 45. This design facilitates the connection between the carrier plate mechanism 5 and the auxiliary displacement mechanism 4.

[0073] Furthermore, as shown in the appendix Figure 4 As shown, the supporting member 53 includes a connecting part 531, a telescopic part 532, and a supporting part 533; specifically, the side of the connecting part 531 is fixedly connected to the end of the supporting panel 52; the top of the connecting part 531 is provided with a telescopic part 532, and the telescopic end of the telescopic part 532 extends toward the middle of the supporting panel 52; the telescopic end of the telescopic part 532 is provided with a supporting part 533; normally, the telescopic part 532 is electrically connected to the aforementioned control mechanism 8.

[0074] Furthermore, the abutting end of the abutting part 533 is provided with a buffer pad (not shown in the figure), which can absorb part of the squeezing force of the abutting part 533 on the screen to be tested, thereby reducing the defect rate of the screen to be tested to a certain extent.

[0075] This embodiment takes into account a situation, and the specific solution is as follows: (see attached) Figure 5 As shown, a side plate 22 is provided on the side of the aforementioned top plate 21 and along the height direction of the frame 2. A side CCD camera 6 is provided on the side of the side plate 22 facing the threaded rod 43. The side CCD camera 6 is located on the rear side of the carrier plate mechanism 5. The side CCD camera 6 is used to automatically detect the brightness and color of the side of the screen. Because this embodiment can automatically detect the front and side of the screen to be detected at the same time under the action of the upper CCD camera 3 and the side CCD camera 6, the detection efficiency is further improved.

[0076] Example 2

[0077] As attached Figure 6 and appendix Figure 7As shown, this embodiment discloses a visual inspection device for screens, used to improve the inspection efficiency of the aforementioned embodiment 1. In addition to the components in embodiment 1, it also includes an auxiliary rotation mechanism 7. Specifically, the outer wall of the auxiliary rotation mechanism 7 is fixedly connected to the inner wall of the first connecting block 42, and the outer wall of the auxiliary rotation mechanism 7 is fixedly connected to the inner wall of the second connecting block 44. The auxiliary rotation mechanism 7 is used to drive the auxiliary displacement mechanism 4 and the carrier plate mechanism 5 to rotate as a whole, thereby achieving the purpose of automatically inspecting the front, front side, and back side of the screen to be inspected, thus improving the inspection efficiency. Furthermore, there is a receiving space (not marked in the figure) between the frame 2 and the first connecting block 42, and a receiving space (not marked in the figure) between the frame 2 and the second connecting block 44. During the process of the auxiliary rotation mechanism 7 driving the auxiliary displacement mechanism 4 and the carrier plate mechanism 5 to rotate, neither the auxiliary displacement mechanism 4 nor the carrier plate mechanism 5 will collide with the frame 2, thus ensuring the normal operation of this embodiment.

[0078] Furthermore, as shown in the appendix Figure 6 As shown, the auxiliary rotation mechanism 7 includes a first support body 71, an auxiliary rotation drive motor 72, a second support body 73, a bearing 74, and a rotating rod 75. Specifically, the first support body 71 is located on the right side of the mounting base 1; the auxiliary rotation drive motor 72 is fixedly mounted on the top end of the first support body 71; the second support body 73 is fixedly mounted on the top end of the mounting base 1, and the second support body 73 is located on the side of the second connecting block 44 away from the first connecting block 42; the bearing 74 is fixedly mounted on the top end of the second support body 73; the driving end of the auxiliary rotation drive motor 72 is provided with a rotating rod 75, and the end of the rotating rod 75 away from the auxiliary rotation drive motor 72 passes through the first connecting block 42 and the second connecting block 44 in sequence and is rotatably connected to the bearing 74, that is, the left end of the rotating rod 75 is rotatably connected to the bearing 74, the peripheral wall of the rotating rod 75 is fixedly connected to the inner wall of the first connecting block 42, and the peripheral wall of the rotating rod 75 is fixedly connected to the inner wall of the second connecting block 44.

[0079] Normally, as shown in the appendix Figure 7As shown, the aforementioned control mechanism 8 is located on the front side of the mounting base 1, and a cover 9 is arranged around the periphery of the mounting base 1. Specifically, the cover 9 is rectangular, with an opening at the bottom. The top of the inner wall of the cover 9 contacts the top of the top plate 21, and the inner wall of the cover 9 is arranged around the periphery of the mounting base 1. The cover 9 is used to prevent external light from shining on the screen on the carrier plate mechanism 5. This design can improve the accuracy of the detection results. After the screen to be tested is placed on the carrier panel 52, the quality inspector operates a lifting mechanism (not shown in the figure) to clamp the left and right sides of the cover 9 and move the cover 9. This lifting mechanism is generally electrically connected to the aforementioned control mechanism 8. When the center of the lower opening of the cover 9 is aligned with the center of the mounting base 1, the lifting mechanism is driven to move the cover 9 down. If the cover 9 cannot be moved down (when the top of the inner wall of the cover 9 contacts the top of the top plate 21, the cover 9 cannot be moved down), the lifting mechanism releases the cover 9. At this time, the space occupied inside the cover 9 is greater than or equal to the sum of the space occupied by the mounting base 1, the frame 2 and the auxiliary rotation mechanism 7, thereby achieving the purpose of preventing external light from shining on the screen on the carrier plate mechanism 5. At the same time, the cover 9 will not affect the normal operation of the auxiliary displacement mechanism 4 and the auxiliary rotation mechanism 7.

[0080] Additionally, as attached Figure 3 As shown, if the quality inspector does not set the auxiliary rotation mechanism 7 during actual use, the bottom ends of the first connecting block 42 and the second connecting block 44 can be extended to the top end of the mounting base 1. That is, the bottom end of the first connecting block 42 is fixedly connected to the top end of the mounting base 1, and the bottom end of the second connecting block 44 is fixedly connected to the top end of the mounting base 1. This design can ensure the stability of the overall structure.

[0081] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” and “the” used in this invention may also include the plural forms. It should be further understood that the term “comprising” as used in this invention means the presence of the stated features, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. It should be understood that when we say an element is “connected” or “coupled” to another element, it can be directly connected or coupled to the other element, or there may be intermediate elements. Furthermore, “connected” or “coupled” as used herein can include wireless connections or wireless coupling. The term “and / or” as used herein includes all or any units and all combinations of one or more associated listed items.

Claims

1. A visual inspection device for a screen, characterized in that, include: Mounting base (1); frame (2), located at the top of the mounting base (1), with a top plate (21) at the top of the frame (2); upper CCD camera (3), located at the middle of the bottom of the top plate (21); auxiliary displacement mechanism (4), located directly or indirectly at the top of the mounting base (1), including: auxiliary displacement drive motor (41), with a first connecting block (42) at its driving end and extending to the outside of the first connecting block (42); threaded rod (43), one end of which... The auxiliary displacement drive motor (41) is connected to the drive end, and the other end is rotatably provided with a second connecting block (44); an auxiliary guide rod (45) is fixedly connected at one end to the first connecting block (42) and at the other end to the second connecting block (44), and the auxiliary guide rod (45) is located below the threaded rod (43); a carrier plate mechanism (5) is slidably connected to the auxiliary guide rod (45), and the inner wall of the carrier plate mechanism (5) is threadedly connected to the threaded rod (43).

2. The visual inspection device for a screen according to claim 1, characterized in that, The carrier plate mechanism (5) includes: a sliding seat (51), the inner wall of which is slidably connected to the peripheral wall of the auxiliary guide rod (45), and the inner wall of the sliding seat (51) is threadedly connected to the peripheral wall of the threaded rod (43), that is, the sliding seat (51) can move left and right along the length direction of the auxiliary guide rod (45) under the action of the auxiliary displacement drive motor (41) and the threaded rod (43); and a bearing plate (52), which is disposed at the top of the sliding seat (51).

3. The visual inspection device for a screen according to claim 2, characterized in that, The bearing surface of the bearing panel (52) is provided with a rubber anti-slip layer.

4. The visual inspection device for a screen according to claim 2 or claim 3, characterized in that, The carrier plate mechanism (5) further includes: abutting member (53); the abutting member (53) is used to abut the front and rear ends of the screen to be tested, and the abutting member (53) is symmetrically arranged at the front and rear ends of the carrier panel (52).

5. The visual inspection device for a screen according to claim 4, characterized in that, The supporting member (53) includes: a connecting part (531) whose side is connected to the end of the supporting panel (52); a telescopic part (532) disposed at the top of the connecting part (531), the telescopic end of the telescopic part (532) extending toward the middle of the supporting panel (52); and a supporting part (533) whose one end is connected to the telescopic end of the telescopic part (532).

6. The visual inspection device for a screen according to claim 5, characterized in that, A buffer pad is provided at the other end of the abutment part (533).

7. The visual inspection device for a screen according to any one of claims 1-3, 5, or 6, characterized in that, Also includes: Side CCD camera (6); The side CCD camera (6) is used to automatically detect the brightness and chromaticity of the side of the screen. The side CCD camera (6) is located on one side of the carrier plate mechanism (5). A side plate (22) is provided on the side of the top plate (21) and extending along the height direction of the frame (2). The side CCD camera (6) is provided on the side of the side plate (22) facing the threaded rod (43).

8. The visual inspection device for a screen according to claim 7, characterized in that, Also includes: Auxiliary rotating mechanism (7); the auxiliary rotating mechanism (7) is used to drive the auxiliary displacement mechanism (4) and the carrier plate mechanism (5) to rotate as a whole. The outer wall of the auxiliary rotating mechanism (7) is fixedly connected to the inner wall of the first connecting block (42), and the outer wall of the auxiliary rotating mechanism (7) is fixedly connected to the inner wall of the second connecting block (44).

9. The visual inspection device for a screen according to claim 8, characterized in that, The auxiliary rotation mechanism (7) includes: a first support body (71) disposed on one side of the mounting base (1); an auxiliary rotation drive motor (72) disposed at the top of the first support body (71); a second support body (73) disposed at the top of the mounting base (1), and the second support body (73) is located on the side of the second connecting block (44) away from the first connecting block (42); a bearing (74) disposed at the top of the second support body (73); a rotating rod (75), one end of which is connected to the drive end of the auxiliary rotation drive motor (72), and the other end passes through the first connecting block (42) and the second connecting block (44) in sequence and is rotatably connected to the bearing (74), and the peripheral wall of the rotating rod (75) is fixedly connected to the inner wall of the first connecting block (42), and the peripheral wall of the rotating rod (75) is fixedly connected to the inner wall of the second connecting block (44).

10. The visual inspection device for a screen according to any one of claims 1-3, 5, 6, 8, or 9, characterized in that, Also includes: Cover (9); The cover (9) is used to prevent external light from shining on the screen on the carrier plate mechanism (5). The cover (9) is rectangular, with an opening at the bottom. The top of the inner wall of the cover (9) contacts the top of the top plate (21). The inner wall of the cover (9) is arranged around the periphery of the mounting base (1).

Images