OLED display panel detection positioning tool

Abstract

The utility model relates to OLED display board detection technical field and disclose a kind of OLED display board detection positioning tool, including base, the upper surface of base is fixedly connected with underframe, the upper surface of base and the fixedly connected with support in the side position of underframe, two square mouths are opened in the support, two The mounting rack is slidably connected in two square mouths, the visual detection camera is fixedly connected in the mounting rack lower surface, the symmetric two sliding plates are slidably connected in the underframe, two The sliding port two is opened in the two sliding plates, and the fixed frame is detachably connected on the underframe by bolt. The utility model realizes the fine adjustment of positioning column X axis position by the accurate linkage of sliding plate and sliding platform cooperation work block and fixed column in sliding mouth, positioning column Y axis position is simultaneously finely adjusted by the cooperation of latch and pinhole fixed sliding platform position, can adapt to different sizes OLED display board.

Description

Technical Field

[0001] This utility model relates to the field of OLED display panel testing technology, and more specifically to an OLED display panel testing and positioning fixture. Background Technology

[0002] With the rapid development of display technology, OLED display panels have been widely used in smartphones, tablets, TVs, smart wearable devices and other fields due to their many advantages such as self-illumination, high contrast, fast response speed, and flexibility.

[0003] However, due to the complex processes and extremely high precision requirements during the production of OLED display panels, defects such as bright spots, dark spots, line defects, and color differences are prone to occur. These defects directly affect the quality and lifespan of the product, so strict testing must be carried out before leaving the factory.

[0004] A search revealed Chinese patent CN214375052U, which discloses an OLED screen inspection device. This device uses a rotating turntable to sequentially inspect different performance characteristics of the OLED screen. While this OLED screen inspection device boasts high inspection efficiency, it is difficult to precisely adapt to OLED display panels of different sizes and thicknesses. This results in the visual inspection equipment being unable to accurately detect surface defects on the display panel, affecting the reliability of the inspection results. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides an OLED display panel detection and positioning fixture to solve the problems existing in the background art.

[0006] This utility model provides the following technical solution: an OLED display panel detection and positioning fixture, including a base, a base frame fixedly connected to the upper surface of the base, a bracket fixedly connected to the upper surface of the base and located on one side of the base frame, two square openings on the bracket, mounting brackets slidably connected within the two square openings, a visual inspection camera fixedly connected to the lower surface of the mounting bracket, two symmetrical sliding plates slidably connected to the base frame, each of the two sliding plates having two sliding slots, a fixing frame detachably connected to the base frame by bolts, two sliding tables slidably connected to the fixing frame, each of the two sliding tables having two sliding slots, I-shaped blocks slidably connected within multiple sliding slots, positioning posts detachably connected to the upper surface of multiple I-shaped blocks by bolts, fixing posts fixedly connected to the lower surface of multiple I-shaped blocks, and the bottom ends of multiple fixing posts respectively embedded into corresponding sliding slots.

[0007] As a further embodiment of this utility model, a bidirectional lead screw is rotatably connected between the inner walls of the two sides of the base frame via a bearing seat. The bidirectional lead screw passes through two slide plates and is threadedly connected to a threaded cylinder on the slide plates. The two ends of the bidirectional lead screw pass out from the two sides of the base frame and are fixedly connected to knobs.

[0008] As a further embodiment of this utility model, both sides of the slide are fixedly connected to fixing blocks, and the fixing blocks slide along the fixing frame. The two round rods of the fixing frame are provided with multiple pin holes, and the fixing blocks are provided with pins, with the bottom end of the pins embedded in one of the pin holes.

[0009] As a further embodiment of this utility model, the two square rods of the mounting bracket are provided with multiple insertion holes, and the bracket is provided with two through holes. A U-shaped bracket is inserted into the through hole, and the U-shaped bracket passes through one of the insertion holes.

[0010] As a further embodiment of this utility model, the positioning post is a frustum-shaped cylinder with a smaller diameter at the top and a larger diameter at the bottom.

[0011] As a further embodiment of this utility model, a rubber pad is glued to the top of the positioning post, and the upper surface of the rubber pad is provided with anti-slip texture.

[0012] As a further embodiment of this utility model, the sliding connection between the slide table and the fixed frame, as well as the sliding connection between the slide plate and the base frame, are all connected by a sliding sleeve.

[0013] As a further embodiment of this utility model, a level bubble is fixedly connected to one side of the bracket, and a calibration line is provided on the outer surface of the level bubble.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] 1. This utility model achieves precise adjustment of the X-axis position of the positioning column by using the precise linkage of the sliding plate and sliding table with the I-shaped block and the fixing column in the sliding opening. At the same time, the precise adjustment of the Y-axis position of the positioning column is achieved by using the cooperation of the pin and the pin hole to fix the position of the sliding table. It can adapt to OLED display panels of different sizes.

[0016] 2. This utility model uses a U-shaped bracket to quickly fix the extension distance of the visual inspection camera, further adapting to the inspection of different types of OLED display panels, thereby increasing the applicability of the device.

[0017] 3. In this utility model, the sliding connection between the slide table and the fixed frame, and between the slide plate and the base frame, are all connected by sliding sleeves, which reduces sliding friction while ensuring smooth sliding and avoids jamming during the positioning process, thus preventing it from affecting the positioning accuracy.

[0018] 4. This utility model uses a bubble level on the bracket to calibrate the horizontal state of the tooling, ensuring that the display panel is in a horizontal detection position and improving detection accuracy. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0020] Figure 2 This is a schematic diagram of the base structure of this utility model.

[0021] Figure 3 This utility model Figure 2 A schematic diagram of the explosion structure.

[0022] Figure 4 This is a schematic diagram of the bottom structure of the mounting bracket of this utility model.

[0023] Figure 5 This utility model Figure 2 A magnified structural diagram of part A.

[0024] The attached diagram is labeled as follows: 1. Base; 2. Bracket; 3. Square opening; 4. Mounting bracket; 5. Vision inspection camera; 6. Base frame; 7. Slide plate; 8. Two-way lead screw; 9. Fixing bracket; 10. Slide table; 11. Slide opening one; 12. I-shaped block; 13. Positioning post; 14. Slide opening two; 15. Fixing post; 16. Insertion hole; 17. Through hole; 18. U-shaped insert; 19. Fixing block; 20. Pin hole; 21. Pin. Detailed Implementation

[0025] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. This utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] Reference Figures 1-5This utility model provides an OLED display panel detection and positioning fixture, including a base 1. A base frame 6 is fixedly connected to the upper surface of the base 1 by bolts. A bracket 2 is fixedly connected to the upper surface of the base 1 and to one side of the base frame 6 by bolts. Two square openings 3 are provided on the bracket 2. A mounting frame 4 is slidably connected in the two square openings 3. A visual inspection camera 5 is fixedly connected to the lower surface of the mounting frame 4 by bolts. Two symmetrical sliding plates 7 are slidably connected to the base frame 6. Two sliding slots 14 are provided on each of the two sliding plates 7. A fixing frame 9 is detachably connected to the base frame 6 by bolts. Two sliding tables 10 are slidably connected to the fixing frame 9. Two sliding slots 11 are provided on each of the two sliding tables 10. I-shaped blocks 12 are slidably connected in the multiple sliding slots 11. Positioning posts 13 are detachably connected to the upper surface of the multiple I-shaped blocks 12 by bolts. Fixing posts 15 are fixedly connected to the lower surface of the multiple I-shaped blocks 12 by bolts, and the bottom ends of the multiple fixing posts 15 are respectively embedded in the corresponding sliding slots 14.

[0027] The visual inspection camera 5 is a CCD camera. A CCD camera is a digital camera that uses a charge-coupled device (CCD) as an image sensor. Therefore, the CCD camera converts the optical scene into a digital image signal and outputs a raw pixel matrix. Then, in conjunction with subsequent software algorithms, image recognition is achieved.

[0028] First, place the display panel to be tested. Place the OLED display panel on the upper surface of the slide table 10, and embed the holes at the four corners of the OLED display panel into the positioning posts 13. At this time, the frustum-shaped positioning posts 13 will position the OLED display panel, and the OLED display panel can be tested by the visual inspection camera 5.

[0029] Furthermore, a double-acting lead screw 8 is rotatably connected between the inner walls of the two sides of the base frame 6 via a bearing seat. The double-acting lead screw 8 passes through two slide plates 7 and is threadedly connected to the threaded cylinder on the slide plates 7. The two ends of the double-acting lead screw 8 pass out from the two sides of the base frame 6 respectively and are fixedly connected to knobs by bolts.

[0030] In this application, the inner wall of the threaded cylinder on the slide plate 7 is provided with an annular groove, and a nylon 66 damping ring with a Shore hardness of 85A is embedded in the groove. The continuous axial clamping force generated by its elastic deformation forms a helical angle interference fit with the surface of the double-acting screw 8 at 15°-20°. When the threaded pair is subjected to axial vibration load, the nylon insert can generate a maximum elastic compression of 0.3mm, which increases the friction coefficient between the thread contact surfaces from 0.15 to 0.68 (tested according to ASTM D1894 standard), effectively suppressing the loosening displacement caused by thread springback.

[0031] When encountering OLED display panels of different sizes, first turn the knobs at both ends of the bidirectional lead screw 8 to drive the two slide plates 7 to slide in opposite or opposite directions along the base frame 6. Since the sliding opening 14 on the slide plate 7 cooperates with the fixing post 15 below the I-shaped block 12, the movement of the slide plate 7 will drive the I-shaped block 12 to slide in the sliding opening 11 of the slide table 10 through the fixing post 15, thereby adjusting the X-axis position of the positioning post 13.

[0032] By precisely linking the slide plate 7 and slide table 10 with the I-shaped block 12 and the fixing column 15 in the slide opening, the position of the positioning column 13 on the X axis can be finely adjusted. At the same time, by using the cooperation of the pin 21 and the pin hole 20 to fix the position of the slide table 10, the position of the positioning column 13 on the Y axis can be finely adjusted, which can adapt to OLED display panels of different sizes.

[0033] Furthermore, a level bubble is fixedly connected to one side of the bracket 2 by bolts, and the outer surface of the level bubble is provided with calibration lines.

[0034] The level bubble on bracket 2 can be used to calibrate the horizontal state of the tooling, ensuring that the display panel is in a horizontal detection position and improving detection accuracy.

[0035] In this utility model, both sides of the slide table 10 are fixedly connected to the fixing blocks 19 by bolts, and the fixing blocks 19 slide along the fixing frame 9. The two round rods of the fixing frame 9 are provided with multiple pin holes 20, and the fixing blocks 19 are provided with pins 21, and the bottom end of the pins 21 is embedded in one of the pin holes 20.

[0036] After the initial positioning in the X-axis direction is completed, the fixing blocks 19 on both sides of the slide table 10 can slide along the fixing frame 9. The positioning pins 21 are inserted into different pin holes 20 on the round rod of the fixing frame 9 to adjust the position of the positioning column 13 in the Y-axis direction.

[0037] Furthermore, the sliding connection between the slide table 10 and the fixed frame 9, as well as the sliding connection between the slide plate 7 and the base frame 6, are all connected by sliding sleeves.

[0038] The sliding connections between the slide table 10 and the fixed frame 9, and between the slide plate 7 and the base frame 6, are all connected by sliding sleeves, which reduces sliding friction while ensuring smooth sliding and avoids jamming during positioning, thus preventing it from affecting positioning accuracy.

[0039] In this utility model, the two square rods of the mounting bracket 4 are provided with multiple insertion holes 16, and the bracket 2 is provided with two through holes 17. A U-shaped bracket 18 is inserted into the through hole 17, and the U-shaped bracket 18 passes through one of the insertion holes 16.

[0040] When it is necessary to adjust the horizontal position of the visual inspection camera 5, the mounting bracket 4 can slide back and forth along the square opening 3 of the bracket 2, and pass the U-shaped insert 18 through the through hole 17 of the bracket 2 and the corresponding insertion hole 16 of the mounting bracket 4, thereby fixing the visual inspection camera 5 so that it can clearly capture the display panel.

[0041] The U-shaped bracket 18 quickly fixes the protrusion of the visual inspection camera 5, further adapting to the inspection of different types of OLED display panels, thereby increasing the applicability of the device.

[0042] In this utility model, the positioning post 13 is a frustum-shaped cylinder with a smaller diameter at the top and a larger diameter at the bottom.

[0043] Furthermore, a rubber pad is glued to the top of the positioning post 13, and the upper surface of the rubber pad has anti-slip texture.

[0044] The use of this utility model involves the following steps:

[0045] S1: First, place the display panel to be tested. Place the OLED display panel on the upper surface of the slide table 10, and embed the holes at the four corners of the OLED display panel into the positioning posts 13. At this time, the frustum-shaped positioning posts 13 will position the OLED display panel, and the OLED display panel can be tested by the visual inspection camera 5.

[0046] S2: When encountering OLED display panels of different sizes, first turn the knobs at both ends of the bidirectional lead screw 8 to drive the two slide plates 7 to slide in opposite or opposite directions along the base frame 6. Since the sliding opening 14 on the slide plate 7 cooperates with the fixing post 15 below the I-shaped block 12, the movement of the slide plate 7 will drive the I-shaped block 12 to slide in the sliding opening 11 of the slide table 10 through the fixing post 15, thereby adjusting the X-axis position of the positioning post 13.

[0047] S3: After the initial positioning in the X-axis direction is completed, the fixing blocks 19 on both sides of the slide table 10 can slide along the fixing frame 9. The pins 21 are inserted into different pin holes 20 on the round rod of the fixing frame 9 to adjust the position of the positioning column 13 in the Y-axis direction.

[0048] S4: When it is necessary to adjust the horizontal position of the visual inspection camera 5, the mounting bracket 4 can slide back and forth along the square opening 3 of the bracket 2, and pass the U-shaped insert 18 through the through hole 17 of the bracket 2 and the corresponding insertion hole 16 of the mounting bracket 4, thereby fixing the visual inspection camera 5 so that it can clearly capture the display panel.

[0049] Finally, the following points should be noted: In the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly, and can be mechanical or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change.

[0050] The electronic components and modules used in this utility model can all be parts that are commonly used in the market and can achieve the specific functions in this case. The specific models and sizes can be selected and adjusted according to actual needs.

[0051] The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

Claims

1. An OLED display panel detection and positioning fixture, comprising a base (1), characterized in that: A base frame (6) is fixedly connected to the upper surface of the base (1). A bracket (2) is fixedly connected to the upper surface of the base (1) and to one side of the base frame (6). Two square openings (3) are provided on the bracket (2). A mounting bracket (4) is slidably connected to the two square openings (3). A visual inspection camera (5) is fixedly connected to the lower surface of the mounting bracket (4). Two symmetrical sliding plates (7) are slidably connected to the base frame (6). Two sliding openings (14) are provided on each of the two sliding plates (7). The base frame (6) has a through-hole. A fixing frame (9) is detachably connected by bolts. Two slides (10) are slidably connected to the fixing frame (9). Two slides (11) are opened on each of the two slides (10). I-shaped blocks (12) are slidably connected in each of the slides (11). Positioning posts (13) are detachably connected to the upper surface of each of the I-shaped blocks (12) by bolts. Fixing posts (15) are fixedly connected to the lower surface of each of the I-shaped blocks (12). The bottom ends of the fixing posts (15) are respectively embedded in the corresponding slides (14).

2. The OLED display panel detection and positioning fixture according to claim 1, characterized in that: A bidirectional lead screw (8) is rotatably connected between the inner walls of the two sides of the base frame (6) through a bearing seat. The bidirectional lead screw (8) passes through two slide plates (7) and is threadedly connected to the threaded cylinder on the slide plate (7). The two ends of the bidirectional lead screw (8) pass out from the two sides of the base frame (6) and are fixedly connected to knobs.

3. The OLED display panel detection and positioning fixture according to claim 1, characterized in that: Both sides of the slide (10) are fixedly connected to a fixing block (19), and the fixing block (19) slides along the fixing frame (9). The two round rods of the fixing frame (9) are provided with multiple pin holes (20). A pin (21) is passed through the fixing block (19), and the bottom end of the pin (21) is embedded in one of the pin holes (20).

4. The OLED display panel detection and positioning fixture according to claim 1, characterized in that: The mounting bracket (4) has multiple insertion holes (16) on its two square rods. The bracket (2) has two through holes (17). A U-shaped insert (18) is inserted into the through hole (17), and the U-shaped insert (18) passes through one of the insertion holes (16).

5. The OLED display panel detection and positioning fixture according to claim 1, characterized in that: The positioning post (13) is a frustum-shaped cylinder with a smaller diameter at the top and a larger diameter at the bottom.

6. The OLED display panel detection and positioning fixture according to claim 5, characterized in that: The top of the positioning post (13) is glued with a rubber pad, and the upper surface of the rubber pad is provided with anti-slip texture.

7. The OLED display panel detection and positioning fixture according to claim 3, characterized in that: The sliding connection between the slide (10) and the fixed frame (9), and the sliding connection between the slide plate (7) and the base frame (6) are all connected by a sliding sleeve.

8. The OLED display panel detection and positioning fixture according to claim 1, characterized in that: A level bubble is fixedly connected to one side of the bracket (2), and a calibration line is provided on the outer surface of the level bubble.

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