Test fixture for laminated screen

Abstract

The utility model discloses a test fixture for a laminated screen, and relates to the technical field of laminated screen measurement, the test fixture comprises a bottom plate and a cover plate, the top surface of the bottom plate is provided with a movable clamping rod, the edge position of the top surface of the bottom plate is provided with a through groove, the lower part of the clamping rod is fixedly connected with a connecting block, and the connecting block is fixedly connected with the cover plate. The bottom of the connecting block is fixedly connected with a rack, a rotatable bottom plate moving block is arranged in the middle of the bottom face of the bottom plate, a toothed plate meshed with the bottom plate moving block is arranged on one side of the bottom plate moving block, and a transmission gear coaxial with the bottom plate moving block is fixedly installed in the middle of the bottom face of the bottom plate moving block. According to the utility model, the two movable clamping rods are arranged, and the two clamping rods can be controlled by pulling or pushing the pull ring, so that the device can quickly fix the laminated screen before being used, the laminated screen is not easy to move in the subsequent detection process, and the detection accuracy is ensured.

Description

Technical Field

[0001] This utility model relates to the field of bonding screen measurement technology, specifically a test fixture for bonding screens. Background Technology

[0002] In today's rapidly developing field of electronic display technology, screen bonding technology, as a crucial link connecting display panels to various electronic devices, directly impacts the visual effect and user experience of the final product. With the increasing popularity and iterative upgrades of consumer electronics products such as smartphones, tablets, and wearable devices, higher demands are being placed on the manufacturing precision and assembly efficiency of screen bonding. However, traditional measurement methods, when faced with the demands of high-precision and high-efficiency production, are gradually revealing drawbacks such as inaccurate positioning, large measurement errors, complex operation, and low efficiency.

[0003] Especially in the production and testing of laminated screens, the inherent flexibility of the screen material and the minute deformations during processing present a significant technical challenge: ensuring the screen remains flat and precisely positioned during measurement. Traditional measuring fixtures often lack effective positioning and clamping mechanisms, leading to screen misalignment or warping during measurement. This severely affects the accuracy of measurement results, consequently impacting subsequent assembly processes and overall product quality control.

[0004] In view of this, a test fixture for bonding screens is provided to overcome the above-mentioned defects. Utility Model Content

[0005] The purpose of this invention is to provide a test fixture for bonding screens, so as to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides a test fixture for bonding screens, including a base plate and a cover plate. A movable clamping rod is provided on the top surface of the base plate, and a through groove is formed at the edge of the top surface of the base plate. A connecting block is fixedly connected to the lower part of the clamping rod, and a rack is fixedly connected to the bottom of the connecting block. A rotatable base plate moving block is provided in the middle of the bottom surface of the base plate, and a toothed plate is provided on one side of the base plate moving block to mesh with it. A transmission gear is fixedly installed in the middle of the bottom surface of the base plate moving block and is coaxially arranged with the base plate moving block. The transmission gear meshes with the rack.

[0007] Furthermore, the specific number of the clamping rod, connecting block and rack is two, the two clamping rods are arranged symmetrically, and the two racks mesh with the transmission gear at the same time.

[0008] Furthermore, a square groove is provided on the side wall of the base plate, and the toothed plate is adapted to the square groove.

[0009] Furthermore, a limiting piece is fixedly installed on the side wall of the toothed plate, and a limiting groove is opened on one side of the square groove. The limiting piece is initially located inside the limiting groove.

[0010] Furthermore, a positioning hole is provided at the top edge of the base plate, and a positioning post is provided at the bottom edge of the cover plate, the positioning post being adapted to the positioning hole.

[0011] Furthermore, a movable groove is provided at the upper edge of the inner wall of the cover plate, a movable block is provided inside the movable groove, a telescopic pressure block is installed at the bottom of the movable block, and a return spring is fixedly connected between the telescopic pressure block and the movable block.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] By setting two movable clamping rods, which can be controlled by pulling or pushing the pull ring, the device can quickly fix the bonding screen before use, making it less likely to move during subsequent testing and ensuring the accuracy of the test. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the internal structure of the transmission gear in this utility model;

[0017] Figure 4 This is a schematic diagram of the cover plate in this utility model.

[0018] In the diagram: 1. Base plate; 2. Cover plate; 3. Positioning hole; 4. Positioning post; 5. Clamping rod; 6. Connecting block; 7. Through groove; 8. Moving groove; 9. Moving block; 10. Telescopic pressure block; 11. Return spring; 12. Pull ring; 13. Limiting plate; 14. Square groove; 15. Limiting groove; 16. Transmission gear; 17. Rack; 18. Gear plate. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example 1

[0021] See Figure 1-4 A test fixture for bonding screens includes a base plate 1 and a cover plate 2. A movable clamping rod 5 is provided on the top surface of the base plate 1. A through groove 7 is provided at the edge of the top surface of the base plate 1. A connecting block 6 is fixedly connected below the clamping rod 5. A rack 17 is fixedly connected to the bottom of the connecting block 6. A rotatable base plate 1 moving block 9 is provided in the middle of the bottom surface of the base plate 1. A toothed plate 18 is provided on one side of the base plate 1 moving block 9 and meshes with it. A transmission gear 16 is fixedly installed in the middle of the bottom surface of the base plate 1 moving block 9 and is coaxially arranged with the base plate 1 moving block 9. The transmission gear 16 meshes with the rack 17.

[0022] By setting the transmission gear 16 to be coaxial with the base plate 1 moving block 9, and fixing the transmission gear 16 to the bottom of the base plate 1 moving block 9, the transmission gear 16 can rotate synchronously with the base plate 1 moving block 9.

[0023] Furthermore, there are two clamping rods 5, two connecting blocks 6, and two racks 17. The two clamping rods 5 are arranged symmetrically, and the two racks 17 mesh with the transmission gear 16 at the same time. By setting the number of clamping rods 5, connecting blocks 6, and racks 17 to two, and setting the two racks 17 to mesh with the transmission gear 16 at the same time, the user can control the rotation of the transmission gear 16 to control the two racks 17 to move relative to each other or in opposite directions, making the use of the device more convenient.

[0024] Furthermore, a square groove 14 is provided on the side wall of the base plate 1, and the toothed plate 18 is adapted to the square groove 14. By providing the square groove 14 and adapting the toothed plate 18 to the square groove 14, the toothed plate 18 can move from the inside to the outside of the base plate 1.

[0025] In addition, a limiting piece 13 is fixedly installed on the side wall of the toothed plate 18, and a limiting groove 15 is opened on one side of the square groove 14. The limiting piece 13 is initially located inside the limiting groove 15. By setting the limiting piece 13 and the limiting groove 15, the toothed plate 18 is limited during movement and will not easily deviate.

[0026] It should be noted that a positioning hole 3 is provided at the top edge of the base plate 1, and a positioning post 4 is provided at the bottom edge of the cover plate 2. The positioning post 4 is adapted to the positioning hole 3. A moving groove 8 is provided at the upper edge of the inner wall of the cover plate 2. A movable moving block 9 is provided inside the moving groove 8. A telescopic pressure block 10 is installed at the bottom of the moving block 9. A return spring 11 is fixedly connected between the telescopic pressure block 10 and the moving block 9.

[0027] Positioning holes 3 are provided on the top edge of the base plate 1, and positioning posts 4 are provided on the bottom edge of the cover plate 2. The positioning posts 4 are adapted to the positioning holes 3, so that the base plate 1 and the cover plate 2 can be attached to each other and remain stable through the cooperation of the positioning holes 3 and the positioning posts 4. A moving groove 8 is provided, and a movable moving block 9 is provided inside the moving groove 8. Finally, a telescopic pressure block 10 is provided below the moving block 9, and a return spring 11 is connected between the two, so that the bonding screen can be pressed tightly after the bonding screen is placed inside the device, preventing the edge from warping during subsequent testing.

[0028] In practical implementation, when testing the bonding screen under normal conditions, the screen itself is prone to shifting or warping. However, in this application, the user can place the bonding screen directly in the center of the top surface of the base plate 1, then align the positioning post 4 on the bottom surface of the cover plate 2 with the positioning hole 3 on the top surface of the base plate 1 and splice them together. During this process, the telescopic pressure block 10 needs to be placed above the bonding screen, and the elastic force of the return spring 11 is used to press it firmly to prevent warping. Then, the user can pull the pull ring 12 to move the toothed plate 18. After the toothed plate 18 moves, it aligns with the... The meshing base plate 1 moving block 9 will rotate. Since the base plate 1 moving block 9 and the transmission gear 16 are coaxially set and fixedly connected, the transmission gear 16 will also rotate synchronously after the base plate 1 moving block 9 rotates. The transmission gear 16 meshes with two racks 17 at the same time. The racks 17 are connected to the clamping rods 5 through the connecting block 6. Therefore, after the pull ring 12 is pulled, the two clamping rods 5 will move closer to each other, thereby forming a clamping effect on the bonding screen, preventing it from tilting during subsequent use, and ensuring the accuracy of subsequent testing.

[0029] By setting two movable clamping rods 5, which can be controlled by pulling or pushing the pull ring 12, the device can quickly fix the bonding screen before use, making it less likely to move during subsequent testing and ensuring the accuracy of the test.

[0030] Working principle: When testing the laminated screen under normal conditions, the screen itself is prone to shifting or warping. In this application, the user can place the laminated screen directly in the center of the top surface of the base plate 1, then align the positioning post 4 on the bottom surface of the cover plate 2 with the positioning hole 3 on the top surface of the base plate 1 and splice them together. During the process, the telescopic pressure block 10 needs to be placed above the laminated screen, and the elastic force of the return spring 11 is used to press it firmly to prevent warping. Then, the user can pull the pull ring 12 to move the toothed plate 18. After the toothed plate 18 moves, it aligns with the... The meshing base plate 1 moving block 9 will rotate. Since the base plate 1 moving block 9 and the transmission gear 16 are coaxially set and fixedly connected, the transmission gear 16 will also rotate synchronously after the base plate 1 moving block 9 rotates. The transmission gear 16 meshes with two racks 17 at the same time. The racks 17 are connected to the clamping rods 5 through the connecting block 6. Therefore, after the pull ring 12 is pulled, the two clamping rods 5 will move closer to each other, thereby forming a clamping effect on the bonding screen, preventing it from tilting during subsequent use, and ensuring the accuracy of subsequent testing.

[0031] By setting two movable clamping rods 5, which can be controlled by pulling or pushing the pull ring 12, the device can quickly fix the bonding screen before use, making it less likely to move during subsequent testing and ensuring the accuracy of the test.

Claims

1. A test fixture for bonding screens, comprising a base plate (1) and a cover plate (2), characterized in that, A movable clamping rod (5) is provided on the top surface of the base plate (1). A through groove (7) is provided at the edge of the top surface of the base plate (1). A connecting block (6) is fixedly connected below the clamping rod (5). A rack (17) is fixedly connected to the bottom of the connecting block (6). A rotatable base plate (1) moving block (9) is provided in the middle of the bottom surface of the base plate (1). A toothed plate (18) meshing with the moving block (9) is provided on one side of the moving block (9). A transmission gear (16) coaxially arranged with the moving block (9) is fixedly installed in the middle of the bottom surface of the moving block (9). The transmission gear (16) meshes with the rack (17).

2. The test fixture for bonding screens as described in claim 1, characterized in that: The specific number of the clamping rod (5), connecting block (6) and rack (17) is two. The two clamping rods (5) are arranged symmetrically, and the two racks (17) mesh with the transmission gear (16) at the same time.

3. A test fixture for bonding screens as described in claim 2, characterized in that: A square groove (14) is provided on the side wall of the base plate (1), and the toothed plate (18) is adapted to the square groove (14).

4. A test fixture for bonding screens as described in claim 3, characterized in that: A limiting piece (13) is fixedly installed on the side wall of the toothed plate (18), and a limiting groove (15) is opened on one side of the square groove (14). The limiting piece (13) is initially located inside the limiting groove (15).

5. A test fixture for bonding screens as described in claim 1, characterized in that: The bottom plate (1) has a positioning hole (3) at the top edge and the cover plate (2) has a positioning post (4) at the bottom edge, and the positioning post (4) is adapted to the positioning hole (3).

6. A test fixture for bonding screens as described in claim 1, characterized in that: The cover plate (2) has a movable groove (8) on the upper edge of its inner wall. A movable block (9) is provided inside the movable groove (8). A telescopic pressure block (10) is installed at the bottom of the movable block (9). A return spring (11) is fixedly connected between the telescopic pressure block (10) and the movable block (9).

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