An OLED screen bending degree detection clamping device

CN224809293UActive Publication Date: 2026-09-29JIANG SU HE YI GUANG XIAN KE JI YOU XIAN GONG SI
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Patent Information

Application Number
CN202522514158.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-27
Publication Date
2026-09-29
Estimated Expiration
2035-11-27

AI Technical Summary

Technical Problem

[0003]现有技术中,常见的屏幕弯曲度检测夹持装置多采用固定式结构,例如通过气缸驱动夹块对屏幕边缘进行压紧,从而保持屏幕稳定;这种装置的工作原理是:将屏幕放置于支撑平台上,利用气动或电动元件控制夹持机构闭合,使屏幕在检测过程中不发生移动;但是在使用时,随着电子产品多样化,屏幕尺寸规格日益丰富,从智能手机的小尺寸到电视的大尺寸,现有夹持装置往往无法灵活适配不同规格,即不同厚度和大小的屏幕;这导致在更换屏幕型号时,需要频繁调整或更换夹具,不仅增加了操作时间,还容易因夹持力不均引发屏幕偏移;屏幕偏移会直接影响检测探头的定位精度,造成测量数据失真,进而降低产品质量控制的可信度,所以需要对此进行改进

Benefits of technology

通过设置夹持机构和限位板,实现了对不同尺寸的屏幕进行限位固定,避免在对屏幕进行检测时,屏幕产生偏移,影响对屏幕的检测准确性;通过设置调节机构,实现了对不同尺寸的屏幕进行调节,使得可以对屏幕进行灵活的调节检测,提高了对屏幕检测的便捷性。

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Abstract

The utility model relates to detection clamping device technical field discloses a kind of OLED screen bending degree detection clamping device, including support plate and support frame, support frame is fixedly connected with support plate;Further include: support cylinder, set up on support frame, and fixedly connected with support frame;Detection block, set up on support cylinder, and fixedly connected with support cylinder output end;Limiting plate, for the limiting fixing of screen;Adjusting mechanism, set up in support plate bottom, for the screen of different sizes is adjusted;Limiting mechanism, set up on adjusting mechanism, for the limiting fixing of screen. Through the setting limiting mechanism and limiting plate, the screen of different sizes is fixedly limited, avoid when detecting screen, screen produces deviation, influence the detection accuracy of screen;Through the setting adjusting mechanism, the screen of different sizes is adjusted, so that screen can be flexibly adjusted detection, improve the convenience of screen detection.
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Description

Technical Field

[0001] This utility model relates to the field of detection clamping device technology, and in particular to an OLED screen curvature detection clamping device. Background Technology

[0002] As a key display component in modern electronic devices, the quality of OLED screens directly affects product performance and user experience. In the screen production process, curvature detection is an important step to ensure screen flatness, and this detection can prevent defects such as deformation and cracks from occurring during use. Currently, the industry typically uses clamping devices to fix the screen so that non-contact optical inspection or mechanical measurement can be performed.

[0003] In existing technologies, most common screen curvature detection clamping devices adopt a fixed structure, such as using a cylinder to drive a clamping block to press the screen edge, thereby maintaining screen stability. The working principle of this device is: the screen is placed on a support platform, and pneumatic or electric components are used to control the closing of the clamping mechanism, so that the screen does not move during the detection process. However, in use, with the diversification of electronic products and the increasing variety of screen sizes, from the small size of smartphones to the large size of televisions, existing clamping devices often cannot flexibly adapt to different specifications, i.e., screens of different thicknesses and sizes. This leads to the need for frequent adjustment or replacement of clamps when changing screen models, which not only increases operation time but also easily causes screen displacement due to uneven clamping force. Screen displacement directly affects the positioning accuracy of the detection probe, causing measurement data distortion, and thus reducing the reliability of product quality control. Therefore, improvements are needed. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an OLED screen curvature detection clamping device, which aims to solve the above-mentioned technical problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An OLED screen curvature detection clamping device includes a support plate and a support frame, wherein the support frame is fixedly connected to the support plate; and further includes: A support cylinder is mounted on the support frame and fixedly connected to the support frame; The detection block is mounted on the support cylinder and is fixedly connected to the output end of the support cylinder. A limiting plate is used to limit and fix the screen. An adjustment mechanism, located at the bottom of the support plate, is used to adjust screens of different sizes; A limiting mechanism is provided on the adjustment mechanism to limit and fix the screen.

[0006] Preferably, the adjustment mechanism includes: The adjustment plate has two plates, which are symmetrically arranged on the support plate and fixedly connected to the support plate; The motor frame is fixedly connected to one of the adjustment plates; Adjust the motor and fix it to the motor frame; The adjusting shaft is fixedly connected to the output end of the adjusting motor via a coupling, and is rotatably connected to the adjusting plate. A sliding component is provided on the adjustment plate.

[0007] Preferably, the sliding component includes: There are two sliding rods, which are symmetrically arranged on the adjustment plate and fixedly connected to the adjustment plate; A sliding block is disposed on the sliding rod, slidably connected to the sliding rod, and helically connected to the adjusting shaft; The transmission component is mounted on the sliding block.

[0008] Preferably, the transmission component includes: The first drive shaft has two shafts, which are symmetrically arranged on both sides of the sliding block and fixedly connected to the sliding block. The transmission plate has two plates, and each plate is rotatably connected to the first transmission shaft. The second drive shaft has two shafts, and each shaft is rotatably connected to one of the two drive plates. The transmission groove is formed on the support plate; Two transmission blocks are disposed within the transmission groove, slidably connected to the transmission groove, and fixedly connected to the top ends of the two second transmission shafts.

[0009] Preferably, the limiting mechanism includes: Two limiting frames are provided, and are respectively disposed on the two transmission blocks and fixedly connected to the transmission blocks; There are two limiting grooves, each opened on the back of the limiting frame; There are two limiting blocks, which are respectively disposed in the two limiting grooves and are slidably connected to the limiting grooves; There are two limiting posts, each fixedly connected to one of the two limiting blocks; There are two elastic components, each disposed within the limiting frame.

[0010] Preferably, the elastic component includes: An elastic rod is disposed within the limiting frame and fixedly connected to the limiting frame, and the limiting block is slidably connected to the elastic rod; An elastic block is disposed on the elastic rod, slidably connected to the elastic rod, and slidably connected to the limiting frame; The elastic sleeve has one end fixedly connected to the elastic block and the other end fixedly connected to the limiting block; An elastic spring, one end of which is fixedly connected to the bottom of the limiting block, and the other end of which is fixedly connected to the limiting frame; Two rotating components are provided on both sides of the elastic block.

[0011] Preferably, the rotating component includes: The first rotating shaft has two shafts, and the two first rotating shafts are symmetrically arranged on both sides of the elastic block and fixedly connected to the elastic block. The rotating plate has two parts, and each part is rotatably connected to one of the two first rotating shafts. The second rotating shaft has two shafts, which are respectively disposed at the ends of the rotating plate and rotatably connected to the rotating plate; A movable component is disposed on the limiting frame.

[0012] Preferably, the moving component includes: A movable groove is formed on the back of the limiting frame; There are two movable blocks, which are symmetrically arranged in the movable groove, slidably connected to the movable groove, fixedly connected to the second rotating shaft, and also fixedly connected to the limiting plate.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: By setting up a clamping mechanism and a limiting plate, screens of different sizes can be fixed and limited, preventing screen displacement during inspection and ensuring accuracy. By setting up an adjustment mechanism, screens of different sizes can be adjusted, allowing for flexible adjustment and inspection, thus improving the convenience of screen inspection. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 A three-dimensional structural schematic diagram of an OLED screen curvature detection clamping device is shown.

[0016] Figure 2 A three-dimensional cross-sectional structural diagram of an OLED screen curvature detection clamping device is shown.

[0017] Figure 3 An exploded perspective view of an OLED screen curvature detection clamping device is shown.

[0018] Figure 4 An exploded view of the adjustment mechanism of an OLED screen curvature detection clamping device is shown.

[0019] Figure 5 An exploded view of the limiting mechanism of an OLED screen curvature detection clamping device is shown.

[0020] Figure 6 A three-dimensional cross-sectional view of the limiting mechanism of an OLED screen curvature detection clamping device is shown.

[0021] Legend: 1. Support plate; 2. Support frame; 3. Support cylinder; 4. Detection block; 5. Limiting plate; 6. Adjusting plate; 7. Motor frame; 8. Adjusting motor; 9. Adjusting shaft; 10. Sliding rod; 11. Sliding block; 12. First transmission shaft; 13. Transmission plate; 14. Second transmission shaft; 15. Transmission groove; 16. Transmission block; 17. Limiting frame; 18. Limiting groove; 19. Limiting block; 20. Limiting post; 21. Elastic rod; 22. Elastic block; 23. Elastic sleeve; 24. Elastic spring; 25. First rotating shaft; 26. Rotating plate; 27. Second rotating shaft; 28. Moving groove; 29. ​​Moving block. Detailed Implementation

[0022] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] Reference Figures 1 to 6 The present invention provides a further description of an embodiment of an OLED screen curvature detection clamping device.

[0027] An OLED screen curvature detection clamping device includes a support plate 1 and a support frame 2, with the support frame 2 fixedly connected to the support plate 1. It also includes: a support cylinder 3, mounted on and fixedly connected to the support frame 2; a detection block 4, mounted on the support cylinder 3 and fixedly connected to its output end; a limiting plate 5 for limiting and fixing the screen; an adjustment mechanism located at the bottom of the support plate 1 for adjusting screens of different sizes; and a limiting mechanism located on the adjustment mechanism for limiting and fixing the screen. The detection block 4 can be a Keyence LK-H series laser displacement sensor, an Omron ZX2 series laser displacement sensor, or a ZX-L series linear array laser sensor.

[0028] Reference Figure 2 and Figure 4 In a preferred embodiment, the adjustment mechanism includes: two adjustment plates 6, which are symmetrically arranged on the support plate 1 and fixedly connected to the support plate 1; a motor frame 7, which is fixedly connected to one of the adjustment plates 6; an adjustment motor 8, which is fixedly connected to the motor frame 7; an adjustment shaft 9, which is fixedly connected to the output end of the adjustment motor 8 via a coupling, and the adjustment shaft 9 is rotatably connected to the adjustment plate 6; and a sliding component, which is disposed on the adjustment plate 6.

[0029] The sliding component includes two sliding rods 10, which are symmetrically arranged on the adjusting plate 6 and fixedly connected to the adjusting plate 6; a sliding block 11, which is I-shaped, is arranged on the sliding rods 10, is slidably connected to the sliding rods 10, and is screw-driven connected to the adjusting shaft 9; and a transmission component is arranged on the sliding block 11.

[0030] When in operation, the regulating motor 8 is started, which drives the regulating shaft 9, which is fixedly connected to the output end of the regulating motor 8, to rotate on the regulating plate 6, so that the sliding block 11, which is threadedly connected to the regulating shaft 9, moves on the sliding rod 10.

[0031] Reference Figure 4 In a preferred embodiment, the transmission component includes: two first transmission shafts 12, which are symmetrically arranged on both sides of the I-shaped sliding block 11 and fixedly connected to the sliding block 11; two transmission plates 13, which are rotatably connected to the two first transmission shafts 12 respectively; two second transmission shafts 14, which are rotatably connected to the two transmission plates 13 respectively; a transmission groove 15, which is formed on the support plate 1; and two transmission blocks 16, which are disposed in the transmission groove 15, slidably connected to the transmission groove 15, and fixedly connected to the top ends of the two second transmission shafts 14.

[0032] Reference Figure 5 and Figure 6 In a preferred embodiment, the limiting mechanism includes: two limiting frames 17, each disposed on one of the two transmission blocks 16 and fixedly connected to the transmission blocks 16; two limiting grooves 18, each formed on the back side of the limiting frame 17; two limiting blocks 19, each disposed within the two limiting grooves 18 and slidably connected to the limiting grooves 18; two limiting posts 20, each fixedly connected to the two limiting blocks 19; and two elastic components, each disposed within the limiting frame 17.

[0033] During operation, the transmission plate 13, which is rotatably connected to the first transmission shaft 12, rotates, causing the transmission block 16, which is fixedly connected to the second transmission shaft 14, to slide in the transmission groove 15, thereby driving the limiting frame 17, which is fixedly connected to the transmission block 16, to move relative to it; pushing the limiting post 20, causing the limiting post 20 to move away from the transmission block 16, so that the limiting block 19, which is fixedly connected to the limiting post 20, slides upward in the limiting groove 18.

[0034] Reference Figure 5 and Figure 6In a preferred embodiment, the elastic component includes: an elastic rod 21, which is disposed within the limiting frame 17 and fixedly connected to the limiting frame 17, and the limiting block 19 is slidably connected to the elastic rod 21; an elastic block 22, which is I-shaped, disposed on the elastic rod 21 and slidably connected to the elastic rod 21 and the limiting frame 17; an elastic sleeve 23, one end of which is fixedly connected to the elastic block 22 and the other end of which is fixedly connected to the limiting block 19; an elastic spring 24, one end of which is fixedly connected to the bottom of the limiting block 19 and the other end of which is fixedly connected to the limiting frame 17; and two rotating components disposed on both sides of the elastic block 22.

[0035] During operation, the elastic sleeve 23, which is fixedly connected to the limit block 19, slides on the elastic rod 21, causing the elastic block 22 to slide on the elastic rod 21, which in turn stretches the elastic spring 24 and generates elastic potential energy.

[0036] Reference Figure 5 and Figure 6 In a preferred embodiment, the rotating component includes: two first rotating shafts 25, which are symmetrically arranged on both sides of the elastic block 22 and fixedly connected to the elastic block 22; two rotating plates 26, which are rotatably connected to the two first rotating shafts 25 respectively; two second rotating shafts 27, which are respectively arranged at the ends of the rotating plates 26 and rotatably connected to the rotating plates 26; and a moving component, which is disposed on the limiting frame 17.

[0037] The moving component includes a moving groove 28, which is opened on the back of the limiting frame 17; and two moving blocks 29, which are symmetrically arranged in the moving groove 28, slidably connected to the moving groove 28, fixedly connected to the second rotating shaft 27, and also fixedly connected to the limiting plate 5.

[0038] During operation, the rotating plate 26, which is rotatably connected to the first rotating shaft 25, rotates, causing the moving block 29, which is fixedly connected to the second rotating shaft 27, to slide in the moving groove 28, so that the moving blocks 29 move away from each other, causing the limiting plate 5, which is fixedly connected to the moving block 29, to slide on the placement block.

[0039] Working principle: When in use, first start the adjustment motor 8, which drives the adjustment shaft 9, which is fixedly connected to the output end of the adjustment motor 8, to rotate on the adjustment plate 6. This causes the sliding block 11, which is threadedly connected to the adjustment shaft 9, to move on the sliding rod 10 and the adjustment shaft 9. This relative movement of the sliding block 11 drives the transmission plate 13, which is rotatably connected to the first transmission shaft 12, to rotate. This causes the transmission block 16, which is fixedly connected to the second transmission shaft 14, to slide in the transmission groove 15. This causes the limiting frame 17, which is fixedly connected to the transmission block 16, to move relative to the transmission block 16. This allows for flexible and convenient adjustment of screens of different sizes. Next, pushing the limiting post 20 causes it to move upward, causing the limiting block 19, which is fixedly connected to the limiting post 20, to slide within the limiting groove 18. This causes the elastic sleeve 23, which is fixedly connected to the limiting block 19, to slide on the elastic rod 21, causing the elastic block 22 to slide on the elastic rod 21. This stretches the elastic spring 24, generating elastic potential energy, which causes the rotating plate 26, which is rotatably connected to the first rotating shaft 25, to rotate. This causes the moving block 29, which is fixedly connected to the second rotating shaft 27, to slide within the moving groove 28. The movement causes the moving blocks 29 to move away from each other, causing the limiting plate 5, which is fixedly connected to the moving blocks 29, to slide on the limiting frame 17. Then, the two ends of the screen are placed on the limiting frame 17, and the limiting post 20 is slowly released. The elastic spring 24 contracts, causing the limiting post 20 to move downward, causing the elastic spring 24 to contract its elastic potential energy, so that the limiting plates 5 move closer to each other until the limiting plates 5 contact the two sides of the screen, thereby limiting the screen and preventing the screen from moving or shifting during detection, which would affect the detection results.

[0040] It should be noted that the control of the adjusting motor 8, support cylinder 3, detection block 4, etc. in this application can all be achieved through automated control using a program set in the control panel, inputting relevant parameters as needed to achieve orderly operation. This control method can be implemented using existing technologies, such as PLCs. Two bellows protective covers can be fitted onto the adjusting shaft 9 for dust and moisture protection. Each bellows protective cover has its two ends fixedly connected to one side of the sliding block 11 and the corresponding side wall of the adjusting plate 6. For ease of assembly, the support plate 1 and the limiting frame 17 can be assembled from two or more components. The transmission groove 15, limiting groove 18, and moving groove 28 form a complete cavity after the components are joined, and the corresponding components can be inserted during assembly.

[0041] The above description of the embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An OLED screen curvature detection clamping device, comprising a support plate (1) and a support frame (2), wherein the support frame (2) is fixedly connected to the support plate (1); characterized in that, Also includes: A support cylinder (3) is mounted on the support frame (2) and is fixedly connected to the support frame (2); The detection block (4) is set on the support cylinder (3) and fixedly connected to the output end of the support cylinder (3); Limiting plate (5) is used to limit and fix the screen; An adjustment mechanism is provided at the bottom of the support plate (1) for adjusting screens of different sizes; A limiting mechanism is provided on the adjustment mechanism to limit and fix the screen.

2. The OLED screen curvature detection clamping device according to claim 1, characterized in that, The adjustment mechanism includes: There are two adjustment plates (6), and the two adjustment plates (6) are symmetrically arranged on the support plate (1) and fixedly connected to the support plate (1); The motor frame (7) is fixedly connected to one of the adjustment plates (6); Adjust the motor (8) and fix it to the motor frame (7); The adjusting shaft (9) is fixedly connected to the output end of the adjusting motor (8) via a coupling, and the adjusting shaft (9) is rotatably connected to the adjusting plate (6); A sliding component is provided on the adjustment plate (6).

3. The OLED screen curvature detection clamping device according to claim 2, characterized in that, The sliding component includes: There are two sliding rods (10), and the two sliding rods (10) are symmetrically arranged on the adjustment plate (6) and fixedly connected to the adjustment plate (6); A sliding block (11) is disposed on the sliding rod (10), is slidably connected to the sliding rod (10), and is screw-driven connected to the adjusting shaft (9); The transmission component is disposed on the sliding block (11).

4. The OLED screen curvature detection clamping device according to claim 3, characterized in that, The transmission component includes: There are two first drive shafts (12), and the two first drive shafts (12) are symmetrically arranged on both sides of the sliding block (11) and fixedly connected to the sliding block (11); There are two transmission plates (13), which are rotatably connected to the two first transmission shafts (12) respectively; The second drive shaft (14) has two shafts, and each shaft is rotatably connected to one of the two drive plates (13); A transmission groove (15) is formed on the support plate (1); Two transmission blocks (16) are disposed in the transmission groove (15), are slidably connected to the transmission groove (15), and are fixedly connected to the top ends of the two second transmission shafts (14).

5. The OLED screen curvature detection clamping device according to claim 4, characterized in that, The limiting mechanism includes: Two limit frames (17) are provided and respectively disposed on the two transmission blocks (16) and fixedly connected to the transmission blocks (16); There are two limiting grooves (18), which are respectively opened on the back of the limiting frame (17); There are two limiting blocks (19), which are respectively disposed in the two limiting grooves (18) and are slidably connected to the limiting grooves (18); There are two limiting posts (20), and each is fixedly connected to one of the two limiting blocks (19); Two elastic components are provided, each disposed within the limiting frame (17).

6. The OLED screen curvature detection clamping device according to claim 5, characterized in that, The elastic component includes: The elastic rod (21) is set inside the limiting frame (17) and is fixedly connected to the limiting frame (17), and the limiting block (19) is slidably connected to the elastic rod (21); The elastic block (22) is set on the elastic rod (21), is slidably connected to the elastic rod (21), and is slidably connected to the limiting frame (17); The elastic sleeve (23) is fixedly connected at one end to the elastic block (22) and at the other end to the limiting block (19); One end of the elastic spring (24) is fixedly connected to the bottom of the limiting block (19), and the other end is fixedly connected to the limiting frame (17); Two rotating components are provided on both sides of the elastic block (22).

7. The OLED screen curvature detection clamping device according to claim 6, characterized in that, The rotating component includes: There are two first rotating shafts (25), and the two first rotating shafts (25) are symmetrically arranged on both sides of the elastic block (22) and fixedly connected to the elastic block (22); Two rotating plates (26) are respectively rotatably connected to two of the first rotating shafts (25); The second rotating shaft (27) has two shafts, which are respectively disposed at the ends of the rotating plate (26) and are rotatably connected to the rotating plate (26); The movable component is disposed on the limiting frame (17).

8. The OLED screen curvature detection clamping device according to claim 7, characterized in that, The movable component includes: A movable slot (28) is provided on the back side of the limiting frame (17); There are two movable blocks (29), and the two movable blocks (29) are symmetrically arranged in the movable groove (28), are slidably connected to the movable groove (28), are fixedly connected to the second rotating shaft (27), and are also fixedly connected to the limiting plate (5).