Circular hole light leakage detection jig

Abstract

The utility model relates to the technical field of detection jigs, in particular to a circular hole light leakage detection jig which comprises a base, a test carrier plate and a supporting piece arranged on the base, a mounting column is arranged on the lower end face of the bottom of the test carrier plate, a mounting ball head is arranged at the lower end of the mounting column, and a mounting containing groove is formed in the upper end of the supporting piece. The installation ball head is detachably installed in the installation containing groove, and a locking piece used for fixing the installation ball head is installed on the periphery of the supporting piece. An upper detection plate is further arranged on the test carrier plate, a plurality of product positioning grooves and a plurality of reflection modules are arranged on the upper detection plate, and the reflection modules are located at one ends of the product positioning grooves; the test carrier plate is also provided with a plurality of needle dies. According to the utility model, the mobile phone display screen does not need to be overturned, and whether the front and back surfaces of the round hole of the mobile phone display screen leak light or not can be checked at one time, so that the detection efficiency and the productivity are improved, and meanwhile, the abrasion caused by repeated overturning of the mobile phone display screen is also avoided; the use flexibility is high.

Description

Technical Field

[0001] This utility model relates to the field of testing fixture technology, and in particular to a circular hole light leakage testing fixture. Background Technology

[0002] In the mobile phone display manufacturing industry, light leakage detection in the circular aperture area is a core process to ensure the optical performance of the display module. Traditional detection methods mainly rely on manual visual inspection, requiring operators to repeatedly flip the screen to observe light leakage on both sides. This method has the following significant drawbacks: Low detection efficiency: Industry statistics show that the average time for a single inspection of a 7-inch OLED screen is 45 seconds, of which 32% (approximately 14.4 seconds) is invalid due to the flipping action. In batch inspection, the daily capacity of a single workstation is less than 600 pieces, which is difficult to meet the needs of modern production lines. Product damage risk: Repeated flipping (3-4 flips are required for single product inspection) increases the coefficient of friction between the screen surface and the fixture. Actual test data shows that the wear rate of the coating layer is as high as 0.8μm / time, which seriously affects the reliability of flexible screens (such as UTG glass). Summary of the Invention

[0003] This utility model addresses the problems of existing technologies by providing a circular hole light leakage detection fixture with a novel structure. It can check whether there is light leakage on both sides of the circular hole of the mobile phone screen at one time without flipping the screen, thus improving detection efficiency and productivity. It also avoids wear and tear caused by repeatedly flipping the mobile phone screen and is highly flexible in use.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] This utility model provides a circular hole light leakage detection fixture, which includes a base, a test plate, and a support member mounted on the base. The lower end of the test plate has a mounting post, and the lower end of the mounting post has a mounting ball head. The upper end of the support member has a mounting groove, and the mounting ball head is detachably mounted in the mounting groove. The outer periphery of the support member is equipped with locking fasteners for fixing the mounting ball head. The test plate also has an upper detection plate, which has multiple product positioning slots and multiple reflective modules. The product positioning slots are arranged in a row at equal intervals, and each reflective module corresponds to one of the product positioning slots, located at one end of each slot. The test plate also has multiple needle molds, each corresponding to one of the product positioning slots, located below the other end of each slot.

[0006] The reflection module includes a reflective lens and a reflection window, the reflection window being disposed through the upper detection plate, and the reflective lens being located within the reflection window.

[0007] The product positioning groove has multiple limiting blocks around its outer periphery, and the product positioning groove is formed between the multiple limiting blocks.

[0008] The product positioning groove also has finger avoidance grooves on both sides.

[0009] The locking device is a bolt or a locking pin.

[0010] The beneficial effects of this utility model are:

[0011] This utility model features a novel structure and ingenious design. During operation, the mobile phone display screen is positioned within the product positioning groove to prevent displacement or loosening. The CN portion of the display screen is placed on the needle mold, facilitating product inspection by operators. Operators, positioned on the front of the upper inspection plate, check for light leakage on the front of the circular hole in the display screen. Then, by observing the reflection module, they check for light leakage on the back of the circular hole. This setup eliminates the need to flip the display screen, allowing for a one-time inspection of both sides of the circular hole, improving inspection efficiency and productivity. It also avoids wear and tear caused by repeated screen flipping, ensuring reliable operation. Furthermore, unlocking the locking mechanism allows the mounting ball head to move within the mounting groove, adjusting the relative position of the mounting ball head and the mounting post, thereby adjusting the orientation of the test plate and the upper inspection plate. This design is convenient for operators of different heights, offering high flexibility. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a circular hole light leakage detection fixture according to the present invention.

[0013] Figure 2 This is a schematic diagram of another perspective of the circular hole light leakage detection fixture of this utility model. Figures 1 to 2 The reference numerals in the figures include:

[0014] 1. Base; 2. Test plate; 3. Support; 4. Mounting post; 5. Mounting ball head; 6. Locking fastener; 7. Upper test plate; 8. Product positioning slot; 9. Needle mold; 10. Reflective lens; 11. Reflective window; 12. Limiting block; 13. Finger avoidance slot. Detailed Implementation

[0015] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention. The present invention will be described in detail below with reference to the accompanying drawings.

[0016] A circular hole light leakage detection fixture, such as Figure 1 and Figure 2 As shown, it includes a base 1, a test carrier plate 2, and a support member 3 mounted on the base 1. The lower end of the test carrier plate 2 is provided with a mounting post 4, and the lower end of the mounting post 4 is provided with a mounting ball head 5. The upper end of the support member 3 has a mounting groove, and the mounting ball head 5 is detachably mounted in the mounting groove. The outer periphery of the support member 3 is provided with a locking fastener 6 for fixing the mounting ball head 5. An upper detection plate 7 is also mounted on the test carrier plate 2. The upper detection plate 7 is provided with multiple product positioning slots 8 and multiple reflective modules. The product positioning slots 8 are arranged in a row at equal intervals. Each reflective module corresponds to one of the product positioning slots 8 and is located at one end of each product positioning slot 8. Multiple needle molds 9 are also provided on the test carrier plate 2, each corresponding to one of the product positioning slots 8 and located below the other end of each product positioning slot 8. Specifically, this utility model features a novel structure and ingenious design. During operation, the mobile phone display screen is positioned within the product positioning groove 8 to prevent displacement or loosening. The CN portion of the mobile phone display screen is placed on the needle mold 9, facilitating product inspection by operators. Operators inspect the front of the circular hole of the mobile phone display screen from the front of the upper detection plate 7 for light leakage, and then check the back of the circular hole of the mobile phone display screen for light leakage by observing the reflection module. With the above setup, there is no need to flip the mobile phone display screen; both the front and back of the circular hole of the mobile phone display screen can be checked for light leakage at once, improving inspection efficiency and productivity. It also avoids wear caused by repeatedly flipping the mobile phone display screen, ensuring reliable operation. Furthermore, unlocking the aforementioned locking fastener 6 allows the mounting ball head 5 to move within the mounting groove, thereby adjusting the relative position of the mounting ball head 5 and the support member 3, and thus adjusting the orientation of the test carrier plate 2 and the upper detection plate 7. This makes it convenient for operators of different heights to use, offering high flexibility.

[0017] Furthermore, multiple product positioning slots 8, a reflective module, and a needle mold 9 are provided to facilitate simultaneous inspection of multiple products, which helps to improve inspection efficiency.

[0018] In the embodiment of the application, the reflection module includes a reflective lens 10 and a reflection window 11. The reflection window 11 is disposed through the upper detection plate 7, and the reflective lens 10 is located within the reflection window 11. Specifically, the design of the reflective lens 10 facilitates the operator to observe the reflective lens 10 from the reflection window 11 to confirm whether there is light leakage on the reverse side of the circular hole of the reflected mobile phone display screen.

[0019] In this embodiment of the application, the outer periphery of the product positioning groove 8 is provided with a plurality of limiting blocks 12, and the product positioning groove 8 is formed between the plurality of limiting blocks 12. Specifically,

[0020] In this embodiment, finger avoidance grooves 13 are also provided on both sides of the product positioning groove 8. Specifically, the finger avoidance grooves 13 facilitate the handling of the product during operation.

[0021] In this embodiment, the locking device 6 is a bolt or a locking pin. Specifically, the bolt or locking pin is threadedly connected to the support member 3. Rotating the locking device 6 facilitates unlocking and fixing the mounting ball head 5. Of course, multiple locking devices 6 can be provided to better fix the mounting ball head 5.

[0022] 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 fixture for detecting light leakage through a circular hole, characterized in that: The device includes a base, a test carrier plate, and a support member mounted on the base. The lower end of the test carrier plate has a mounting post, and the lower end of the mounting post has a mounting ball head. The upper end of the support member has a mounting groove, and the mounting ball head is detachably mounted within the mounting groove. The outer periphery of the support member is equipped with locking fasteners for securing the mounting ball head. The test carrier plate also has an upper detection plate with multiple product positioning slots and multiple reflective modules. The product positioning slots are evenly spaced in a row, and each reflective module corresponds to one of the product positioning slots, located at one end of each slot. The test carrier plate also has multiple needle molds, each corresponding to one of the product positioning slots, located below the other end of each slot.

2. The circular hole light leakage detection fixture according to claim 1, characterized in that: The reflection module includes a reflective lens and a reflection window. The reflection window is disposed through the upper detection plate, and the reflective lens is located inside the reflection window.

3. The circular hole light leakage detection fixture according to claim 1, characterized in that: The outer periphery of the product positioning groove is provided with multiple limiting blocks, and the product positioning groove is formed between the multiple limiting blocks.

4. The circular hole light leakage detection fixture according to claim 1, characterized in that: Finger avoidance grooves are also provided on both sides of the product positioning groove.

5. A circular hole light leakage detection fixture according to claim 1, characterized in that: The locking device is a bolt or a locking pin.

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