A testing module for mobile phone screen production

Abstract

This utility model relates to the field of screen testing technology and is a testing module for mobile phone screen production. It includes a visual inspection module and a fixing fixture disposed below the visual inspection module. The upper end of the fixing fixture has a receiving cavity for placing the mobile phone screen. One end of the receiving cavity has a downwardly recessed clearance groove, and one side of the clearance groove has an interface for electrical connection with the mobile phone screen. The bottom of the receiving cavity has a pneumatic adsorption module for fixing the mobile phone screen. This utility model, through the design of the clearance groove, provides sufficient space for the PCB board of the mobile phone screen, allowing the mobile phone screen to be placed horizontally within the receiving cavity, avoiding the influence of the PCB board on the screen testing accuracy. Simultaneously, the design of the pneumatic adsorption module ensures that the mobile phone screen is firmly fixed within the receiving cavity, avoiding errors caused by screen movement during testing.

Description

Technical Field

[0001] This utility model relates to the field of screen testing technology, specifically to a testing module used in mobile phone screen production. Background Technology

[0002] In the manufacturing process of mobile phone screens, it is necessary to inspect the screen for appearance defects such as scratches, dents, pinholes, and screen noise to ensure product quality. Current inspection methods generally employ manual visual inspection or a semi-automatic approach combining manual inspection with instruments. Clearly, traditional methods are inefficient, and manual inspection can easily damage or contaminate the screen, leading to false positives and high labor intensity, thus affecting both product quality and inspection accuracy.

[0003] To address the aforementioned issues, Chinese Patent No. CN209184657U discloses a noise testing device for mobile phone screens after polarizer lamination. The device electrically connects the FPC of the mobile phone screen through a testing module to form an energized state. This not only allows for simultaneous testing of other screen performance but also enables the device to take a picture of the tested mobile phone screen while it is lit or flickering, and then display the magnified image on a monitor, providing a more intuitive observation of the mobile phone screen.

[0004] However, in practical applications, given the wide variety of mobile phone screens and their diverse manufacturing processes, the PCB board is often already fixed to the back of the screen when it enters the testing stage. Due to the influence of the PCB board, the screen often cannot remain level when placed on the testing platform, which can easily affect the accuracy of screen testing. Therefore, this invention proposes a testing module for mobile phone screen production. Summary of the Invention

[0005] This invention provides a testing module for mobile phone screen production to solve the problems mentioned in the background art.

[0006] The objective of this utility model is achieved through the following means:

[0007] A testing module for mobile phone screen production includes a visual inspection module and a fixing fixture disposed below the visual inspection module. The upper end of the fixing fixture is provided with a receiving cavity for placing the mobile phone screen. One end of the receiving cavity is provided with a downwardly recessed clearance groove. One side of the clearance groove is provided with an interface for electrical connection with the mobile phone screen. The bottom of the receiving cavity is provided with a pneumatic adsorption module for fixing the mobile phone screen.

[0008] Furthermore, the pneumatic adsorption module includes an air vent platform disposed within the accommodating cavity and a sealing gasket surrounding the outer edge of the air vent platform, wherein the upper surface of the sealing gasket is higher than the upper surface of the air vent platform.

[0009] Furthermore, the pneumatic adsorption module also includes a regulating valve for connecting to the air vent platform.

[0010] Furthermore, the fixing fixture includes a frame and a base, the frame being detachably mounted to the upper end of the base by screws, and the receiving cavity being disposed at the upper end of the frame.

[0011] Furthermore, the upper end of the base is provided with an air passage for connecting to the air vent platform.

[0012] Furthermore, a sealing ring is provided between the frame and the base, the sealing ring surrounding the outer edge of the air passage.

[0013] Furthermore, the fixing fixture is movably mounted below the vision inspection module via an X-axis guide rail structure.

[0014] Furthermore, the visual inspection module is mounted on top of the fixing fixture via a bracket.

[0015] Furthermore, the vision inspection module is mounted on the bracket via a YZ-axis guide rail structure.

[0016] This invention, through the design of the clearance groove, provides sufficient space for the PCB board of the mobile phone screen, allowing the screen to be placed horizontally within the receiving cavity, thus avoiding the impact of the PCB board on the screen testing accuracy. Simultaneously, the pneumatic adsorption module design ensures the mobile phone screen is firmly fixed within the receiving cavity, preventing errors caused by screen movement during testing. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a testing module for mobile phone screen production according to the present invention;

[0018] Figure 2 This is a schematic diagram of the fixing fixture in this utility model;

[0019] Figure 3 This is an exploded view of the fixing fixture in this utility model;

[0020] The reference numerals in the figure are as follows: 1-Vision inspection module, 2-Sealing ring, 3-Fixing fixture, 3A-Frame, 31A-Accommodation cavity, 32A-Allowing groove, 3B-Base, 31B-Air passage, 4-Air port platform, 5-Sealing gasket, 6-X-axis guide rail structure, 7-Bracket, 8-YZ-axis guide rail structure, 9-Interface, 10-Regulating valve. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0022] In this embodiment, refer to Figure 1 - Figure 3 The present invention relates to a testing module for mobile phone screen production, comprising a visual inspection module 1 and a fixing fixture 3 disposed below the visual inspection module 1. The upper end of the fixing fixture 3 is provided with a receiving cavity 31A for placing the mobile phone screen, one end of the receiving cavity 31A is provided with a downwardly recessed relief groove 32A, and the bottom of the receiving cavity 31A is provided with a pneumatic adsorption module for fixing the mobile phone screen.

[0023] The pneumatic adsorption module includes an air-perforated platform 4 disposed within the receiving cavity 31A and a sealing gasket 5 surrounding the outer edge of the air-perforated platform 4, with the upper surface of the sealing gasket 5 higher than the upper surface of the air-perforated platform 4. In actual use, the air-perforated platform 4 needs to be connected to an external air pump to generate negative pressure on the air-perforated platform 4 to adsorb and fix the mobile phone screen. The sealing gasket 5 effectively prevents external gas from entering the receiving cavity 31A, improving the adsorption effect of the pneumatic adsorption module. Simultaneously, the design of the sealing gasket 5 also increases the stability of the mobile phone screen within the receiving cavity 31A, preventing the screen from shifting or falling due to vibration or other factors, thereby ensuring that the detection module can accurately and stably detect the mobile phone screen.

[0024] Furthermore, the pneumatic adsorption module also includes a regulating valve 10 for connection with the air vent platform 4. This regulating valve 10 controls the connection between the air vent platform 4 and the external air pump, thereby adjusting the negative pressure. In actual operation, operators can flexibly adjust the negative pressure value through the regulating valve 10 according to the size and weight of the mobile phone screen and the testing requirements to achieve the best adsorption and fixation effect. This design not only improves the adaptability and flexibility of the testing module but also further ensures the stability and accuracy of the mobile phone screen during the testing process.

[0025] Furthermore, the fixing fixture 3 includes a frame 3A and a base 3B. The frame 3A is detachably installed on the upper end of the base 3B by screws. The receiving cavity 31A is disposed on the upper end of the frame 3A. The detachable design of the frame 3A facilitates module replacement, thereby reducing the cost of adapting to different mobile phone screens.

[0026] Furthermore, the upper end of the base 3B is provided with an air passage 31B for connecting with the air platform 4. A sealing ring 2 is provided between the frame 3A and the base 3B, and the sealing ring 2 surrounds the outer edge of the air passage 31B to prevent gas leakage and ensure the adsorption effect of the pneumatic adsorption module. The design of the air passage 31B allows the air platform 4 to be stably connected to an external air pump, ensuring the stable generation of negative pressure. At the same time, the frame 3A and the base 3B are detachably connected by screws, which not only facilitates installation and disassembly but also benefits subsequent maintenance and upkeep, improving the service life of the detection module.

[0027] The fixing fixture 3 is movably mounted below the vision inspection module 1 via the X-axis guide rail structure 6. Furthermore, the X-axis guide rail structure 6 may include an electric lead screw, cylinder, or electric cylinder, etc., to drive the fixing fixture 3 to move linearly on the guide rail.

[0028] Furthermore, the visual inspection module 1 is mounted above the fixed fixture 3 via a bracket 7. The visual inspection module 1 is mounted on the bracket 7 via a YZ-axis guide rail structure 8, allowing for adjustment of two axial degrees of freedom, thereby achieving accurate inspection of different mobile phone screen models. This design significantly improves inspection efficiency and accuracy, while also enhancing the flexibility and adaptability of the inspection module.

[0029] Furthermore, to achieve comprehensive inspection of the mobile phone screen, the visual inspection module 1 may include components such as a high-resolution camera, a light source, and an image processing system. The high-resolution camera can capture images of the mobile phone screen.

[0030] In this embodiment, the visual inspection module 1 is a CCD camera. The CCD camera is electrically connected to an external display, which is used to display the image information collected by the camera. By taking pictures of the mobile phone screen under test with the camera and displaying them on the display, the mobile phone screen can be observed more intuitively, reducing the false detection rate of human under high-intensity eye use and ensuring the quality of product inspection.

[0031] One side of the clearance groove 32A is provided with an interface 9 for electrical connection with the mobile phone screen, and the interface 9 is used to supply power to the mobile phone screen.

[0032] This invention, through the design of the clearance groove 32A, provides sufficient space for the PCB board of the mobile phone screen, allowing the screen to be placed horizontally within the receiving cavity 31A, thus avoiding the influence of the PCB board on the screen testing accuracy. Simultaneously, the pneumatic adsorption module design ensures the mobile phone screen is firmly fixed within the receiving cavity 31A, preventing errors caused by screen movement during testing.

[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.

Claims

1. A testing module for mobile phone screen production, comprising a visual inspection module (1) and a fixing fixture (3) disposed below the visual inspection module (1), characterized in that: The upper end of the fixing fixture (3) is provided with a receiving cavity (31A) for placing a mobile phone screen. One end of the receiving cavity (31A) is provided with a downwardly recessed relief groove (32A). One side of the relief groove (32A) is provided with an interface (9) for electrically connecting with the mobile phone screen. The bottom of the receiving cavity (31A) is provided with a pneumatic adsorption module for fixing the mobile phone screen.

2. The testing module for mobile phone screen production according to claim 1, characterized in that: The pneumatic adsorption module includes a pore platform (4) disposed in the receiving cavity (31A) and a sealing gasket (5) surrounding the outer edge of the pore platform (4), wherein the upper end surface of the sealing gasket (5) is higher than the upper end surface of the pore platform (4).

3. The testing module for mobile phone screen production according to claim 2, characterized in that: The pneumatic adsorption module also includes a regulating valve (10) for connecting to the air vent platform (4).

4. A testing module for mobile phone screen production according to claim 2 or 3, characterized in that: The fixing fixture (3) includes a frame (3A) and a base (3B). The frame (3A) is detachably mounted on the upper end of the base (3B) by screws, and the receiving cavity (31A) is disposed on the upper end of the frame (3A).

5. The testing module for mobile phone screen production according to claim 4, characterized in that: The upper end of the base (3B) is provided with an air passage (31B) for connecting with the air vent platform (4).

6. The testing module for mobile phone screen production according to claim 5, characterized in that: A sealing ring (2) is provided between the frame (3A) and the base (3B), and the sealing ring (2) surrounds the outer edge of the air passage (31B).

7. The testing module for mobile phone screen production according to claim 1, characterized in that: The fixing fixture (3) is movably mounted below the vision inspection module (1) via the X-axis guide rail structure (6).

8. A testing module for mobile phone screen production according to claim 1 or 7, characterized in that: The visual inspection module (1) is mounted on top of the fixing fixture (3) via a bracket (7).

9. The testing module for mobile phone screen production according to claim 8, characterized in that: The visual inspection module (1) is mounted on the bracket (7) via the YZ axis guide rail structure (8).

Images