A LCD display screen pressure resistance detection device
By combining the placement stage and motor drive design, the problem of slippage and offset of LCD screens during testing is solved, achieving stable fixation and uniform clamping, ensuring the accuracy and comprehensiveness of test data, and adapting to the pressure resistance testing of screens of different sizes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN XIANGHENG PHOTOELECTRIC TECH CO LTD
- Filing Date
- 2025-11-06
- Publication Date
- 2026-07-10
AI Technical Summary
Existing LCD display pressure testing devices are prone to causing the LCD display to slide or shift during testing, resulting in misalignment between the actual pressure point and the preset testing point, and thus failing to accurately reflect the pressure resistance performance of the target area.
The device employs a combination design of a placement platform, connecting plate, slide rail, pressure plate, lead screw, and second motor. The motor drives the pressure plate to cooperate with the placement platform to fix the display screen, ensuring its stability at the preset testing station. At the same time, the spacing of the connecting plate is adjusted using the mounting frame, bidirectional threaded rod, and first motor to accommodate screens of different sizes. The testing head is moved by the mounting bracket, synchronous pulley, belt, and third motor to accurately position the testing area.
It achieves stable fixation of the LCD display during the testing process, avoids positional displacement, ensures uniform clamping force, can adapt to screens of different sizes, accurately assesses the overall compressive strength of the display, and improves the authenticity and accuracy of the test data.
Smart Images
Figure CN224480352U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of LCD display technology, specifically to an LCD display pressure resistance testing device. Background Technology
[0002] A pressure resistance testing device is a device or system used to test the performance and structural strength of an LCD display under stress conditions such as mechanical pressure, extrusion, or impact. Its core objective is to evaluate whether the display can still maintain its display quality, reliability, and structural integrity when subjected to extrusion, dropping, assembly pressure, or other situations that may be encountered in actual use.
[0003] Patent CN219745576U discloses a liquid crystal display screen pressure resistance testing device, which solves the problem that existing testing devices cannot automatically sort the tested displays. The device includes a support base, a lifting hydraulic rod inserted in the middle of the support base, an adjustable display screen support and transfer assembly at the top of the lifting hydraulic rod, a lifting limit rod at the bottom side of the adjustable display screen support and transfer assembly, a support frame at the top of the support base, a testing hydraulic arm inserted in the middle of the support frame, an adjustable testing pressure plate at the bottom of the testing hydraulic arm, a display screen feeding conveyor belt at the top of one side of the support frame, and a good display screen discharge conveyor belt and a defective display screen discharge conveyor belt at the top of the other side of the support frame. This testing device enables continuous testing of liquid crystal displays and automatic sorting of defective products, improving work efficiency.
[0004] Based on existing solutions and practical applications, current LCD display pressure testing devices still have some problems. For example, when performing pressure testing on an LCD display, it is easy for it to slip or shift during the pressure process, causing the actual pressure point to be misaligned with the preset testing point. This results in the test data being too high or too low, making it unable to reflect the pressure resistance performance of the target area. Utility Model Content
[0005] The purpose of this invention is to provide an LCD display pressure resistance testing device to solve the problem mentioned in the background art that when performing pressure testing on an LCD display, it is easy to cause slippage and displacement, resulting in misalignment between the actual pressure point and the preset testing point, thus failing to reflect the pressure resistance performance of the target area.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an LCD display screen pressure resistance testing device, comprising:
[0007] A placement platform is provided, with conveying troughs fixedly installed at both ends. A mounting frame for support is provided on the top of the conveying trough, and a liftable detection head is provided on the frame. A mounting frame is fixedly installed at both ends of the top of the placement platform, and a connecting plate is slidably connected to the front and rear ends of the mounting frame groove. An adjustment component is provided in the groove of the mounting frame, and a clamping component is provided on the plate of the connecting plate. A moving component is provided inside the conveying trough.
[0008] Preferably, the adjustment assembly includes a bidirectional threaded rod and a first motor, and the bidirectional threaded rod is rotatably connected inside the mounting frame groove. The rod body of the bidirectional threaded rod is connected to the connecting plate by threads. The first motor is fixedly installed at the rear end of the mounting frame, and the output end of the first motor is fixedly connected to the rear end of the bidirectional threaded rod.
[0009] Preferably, the clamping assembly includes a sliding groove, a pressure plate, a lead screw, and a second motor. The sliding groove is provided on the body of the connecting plate, and the pressure plate is slidably connected inside the sliding groove. The lead screw is rotatably connected at the middle position of the connecting plate, and the rod of the lead screw is connected to the pressure plate by threads. The second motor is fixedly installed on the top of the connecting plate, and the output end of the second motor is fixedly connected to the upper end of the lead screw rod.
[0010] Preferably, a rubber pad is provided at the bottom of the pressure plate body, and a rubber pad is also provided at the top of the placement platform.
[0011] Preferably, the moving component includes a synchronous pulley, a belt, a hinge block, and a third motor. The front and rear ends of the conveying trough are rotatably connected to synchronous pulleys, and the synchronous pulleys are connected together by a belt sleeve. The top of the conveying trough is slidably connected to a hinge block. The front end of the side wall of the conveying trough is fixedly installed with a third motor, and the output end of the third motor is connected to the shaft of the front synchronous pulley in the conveying trough.
[0012] Preferably, the bottom of the hinge block is connected to the belt body, and the top of the hinge block is fixedly connected to the mounting bracket.
[0013] Compared with the prior art, the beneficial effects of this utility model are: the LCD display pressure resistance testing device can stably fix the LCD screen in the preset testing position through the cooperation between the pressure plate and the placement table, avoiding the misalignment of the testing point due to position displacement. At the same time, by adjusting the spacing between the connecting plates, it can ensure that the clamping force acts on the stable support point of the screen, and also adapt to LCD screens of different lengths and sizes, thereby ensuring that the clamping force is moderate and uniform, thus improving the authenticity of the test data. Then, by moving the testing head, it can be used for different target areas of the screen and accurately positioned to the area to be tested, thereby comprehensively evaluating the overall pressure resistance level of the display screen.
[0014] 1. The device is equipped with a placement platform, a connecting plate, a slide rail, a pressure plate, a lead screw, and a second motor. The output end of the second motor is connected to the upper end of the lead screw, and the lead screw is connected to the pressure plate via threads. The operation of the second motor can drive the pressure plate to slide in the slide rail. Rubber pads are provided at the bottom of the pressure plate and the top of the placement platform. The movement of the pressure plate can bring it closer to the placement platform and fix the display screen. The cooperation between the pressure plate and the placement platform can stably fix the LCD screen in the preset detection position, avoiding misalignment of the detection point due to positional displacement, thereby truly reflecting the compressive strength of a specific area.
[0015] 2. The device is equipped with a mounting frame, a bidirectional threaded rod, a first motor, and connecting plates. The output end of the first motor is connected to the rear end of the bidirectional threaded rod, and the rod is connected to the connecting plates at both ends of the mounting frame groove via threads. The operation of the first motor causes the bidirectional threaded rod to drive the connecting plates to slide within the mounting frame groove, allowing the two sets of connecting plates to move closer or further apart, thus adjusting the spacing between the connecting plates. This adjustment ensures that the clamping force acts on the stable support point of the screen, and also allows for adaptation to LCD screens of different lengths and sizes, ensuring that the clamping force is moderate and uniform, thereby improving the authenticity of the test data.
[0016] 3. The device is equipped with a mounting frame, a testing head, a conveyor trough, a synchronous pulley, a belt, a hinge block, and a third motor. The output end of the third motor is connected to the shaft of the synchronous pulley in the front of the conveyor trough, and the pulleys are connected to each other by a belt. A hinge block is slidably connected to the top of the conveyor trough, and its bottom is connected to the belt. The top of the hinge block is connected to the mounting frame. The forward and reverse operation of the third motor, along with the cooperation between the synchronous pulley and the belt, moves the hinge block at the top of the conveyor trough. This movement of the hinge block drives the testing head to move back and forth through the mounting frame. The movement of the testing head can be used to test different target areas of the screen, allowing for simultaneous testing of the compressive strength of multiple locations on the screen and precise positioning of the area to be tested, thus comprehensively evaluating the overall compressive strength of the display screen. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 3 This is a top view of the structure of this utility model;
[0020] Figure 4 This is a schematic diagram of the overall structure of the connecting plate of this utility model;
[0021] Figure 5 This is a cross-sectional view of the conveying trough of this utility model.
[0022] In the diagram: 1. Placement platform; 2. Mounting frame; 3. Detection head; 4. Mounting frame; 5. Bidirectional threaded rod; 6. First motor; 7. Connecting plate; 8. Slide groove; 9. Pressure plate; 10. Lead screw; 11. Second motor; 12. Conveying trough; 13. Synchronous pulley; 14. Belt; 15. Hinge block; 16. Third motor. Detailed Implementation
[0023] 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.
[0024] Please see Figure 1-5 This utility model provides a technical solution: an LCD display screen pressure resistance testing device, comprising: a placement platform 1, a mounting frame 2, a testing head 3, a mounting frame 4, a bidirectional threaded rod 5, a first motor 6, a connecting plate 7, a sliding groove 8, a pressure plate 9, a lead screw 10, a second motor 11, a conveying groove 12, a synchronous pulley 13, a belt 14, a hinge block 15, and a third motor 16.
[0025] First, as attached Figure 1 Appendix Figure 2 and attached Figure 3As shown, when performing a pressure resistance test on the LCD display, the LCD display is placed on top of the placement platform 1. Since a rubber pad is provided on the top of the placement platform 1, the LCD display rests on the rubber pad. After the LCD display is placed, the connecting plate 7 is adjusted according to the length of the display. Mounting frames 4 are fixedly installed at both ends of the top of the placement platform 1, and the connecting plate 7 is slidably connected to the front and rear ends of the mounting frame 4's groove. A bidirectional threaded rod 5 is rotatably connected inside the mounting frame 4's groove, and the rod of the bidirectional threaded rod 5 is connected to the connecting plate 7 via threads. The mounting frame 7 is also connected to the connecting plate 7 via threads. The rear end of the mounting frame 4 is fixedly installed with a first motor 6, and the output end of the first motor 6 is fixedly connected to the rear end of the bidirectional threaded rod 5. The controller controls the operation of the first motor 6, and the operation of the first motor 6 drives the bidirectional threaded rod 5 to rotate in the groove of the mounting frame 4. The rotation of the bidirectional threaded rod 5 drives the two sets of connecting plates 7 in the groove of the mounting frame 4 to move closer or further apart. The distance between the connecting plates 7 is adjusted to a suitable distance according to the length of the LCD screen. By adjusting the distance between the connecting plates 7, the clamping force can be applied to the stable support point of the screen, thereby ensuring that the clamping force is moderate and uniform.
[0026] As attached Figure 1 Appendix Figure 2 Appendix Figure 3 and attached Figure 4 As shown, after the spacing between the connecting plates 7 is adjusted according to the length of the LCD screen, a sliding groove 8 is provided on the plate body of the connecting plate 7, and a pressure plate 9 is slidably connected in the groove 8. At the same time, a lead screw 10 is rotatably connected at the middle position of the connecting plate 7, and a second motor 11 is fixedly installed on the top of the connecting plate 7. The output end of the second motor 11 is connected to the upper end of the lead screw 10, and the lead screw 10 is connected to the pressure plate 9 by threads, so that each group of connecting plates can be synchronously controlled by the controller. The second motor 11 at the top of the 7 operates, which drives the lead screw 10 to rotate. The rotation of the lead screw 10 drives the pressure plate 9 to slide in the groove of the slide 8. The pressure plate 9 can then move towards the placement table 1. The bottom of the pressure plate 9 is provided with a rubber pad. The movement of the pressure plate 9 towards the placement table 1 can clamp and fix the LCD screen placed above the placement table 1. The cooperation between the pressure plate 9 and the placement table 1 can stably fix the LCD screen in the preset detection position and avoid the detection point misalignment caused by positional shift.
[0027] As attached Figure 1 Appendix Figure 2 Appendix Figure 3 and attached Figure 5As shown, after the LCD display screen is fixed, conveyor troughs 12 are fixedly installed at both ends of the placement platform 1. Synchronous pulleys 13 are rotatably connected to both ends of the conveyor trough 12, and the synchronous pulleys 13 are connected together by a belt 14. A hinge block 15 is slidably connected to the top of the conveyor trough 12, and a mounting bracket 2 is provided at the top of the conveyor trough 12. The bottom of the hinge block 15 is connected to the belt body of the belt 14, and the top of the hinge block 15 is fixedly connected to the mounting bracket 2. A third motor 16 is fixedly installed at the front end of the side wall of the conveyor trough 12, and the output end of the third motor 16 is connected to the conveyor trough 12. The shafts of the front synchronous pulleys 13 are connected together, and a liftable detection head 3 is also installed on the frame of the mounting bracket 2. The detection head 3 can be controlled by the controller to perform resistance testing on the LCD display screen above the placement platform 1. The controller can also control the operation of the third motor 16. Through the operation of the third motor 16 and the cooperation between the synchronous pulleys 13 and the belt 14, the hinge block 15 can be moved on the top of the conveyor trough 12. The hinge block 15 drives the detection head 3 to move synchronously through the mounting bracket 2. The movement of the detection head 3 can be used for different target areas of the screen and accurately locate the area to be tested, thereby comprehensively evaluating the overall compressive strength of the display screen.
[0028] The contents not described in detail in this specification are existing technologies known to those skilled in the art. All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.
[0029] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A pressure resistance testing device for an LCD display screen, comprising: A placement platform (1) is provided, and conveying grooves (12) are fixedly installed at both the left and right ends of the placement platform (1). The conveying groove (12) is characterized by having a support frame (2) on the top of the conveying groove (12), and a liftable detection head (3) is provided on the frame of the support frame (2). A mounting frame (4) is fixedly installed at both the left and right ends of the top of the placement platform (1), and a connecting plate (7) is slidably connected to the front and rear ends of the groove of the mounting frame (4). An adjustment component is provided in the groove of the mounting frame (4), and a clamping component is provided on the plate of the connecting plate (7). A moving component is provided inside the conveying groove (12).
2. The LCD display screen pressure resistance testing device according to claim 1, characterized in that: The adjustment assembly includes a bidirectional threaded rod (5) and a first motor (6), and the bidirectional threaded rod (5) is rotatably connected inside the groove of the mounting frame (4). The rod body of the bidirectional threaded rod (5) is connected to the connecting plate (7) by threads. The first motor (6) is fixedly installed at the rear end of the mounting frame (4), and the output end of the first motor (6) is fixedly connected to the rear end of the bidirectional threaded rod (5).
3. The LCD display screen pressure resistance testing device according to claim 1, characterized in that: The clamping assembly includes a sliding groove (8), a pressure plate (9), a lead screw (10), and a second motor (11). The sliding groove (8) is provided on the plate body of the connecting plate (7). The pressure plate (9) is slidably connected inside the sliding groove (8). The lead screw (10) is rotatably connected at the middle position of the connecting plate (7). The rod of the lead screw (10) is connected to the pressure plate (9) by a thread. The second motor (11) is fixedly installed on the top of the connecting plate (7). The output end of the second motor (11) is fixedly connected to the upper end of the rod of the lead screw (10).
4. The LCD display screen pressure resistance testing device according to claim 3, characterized in that: The bottom of the pressure plate (9) is provided with a rubber pad, and the top of the placement platform (1) is also provided with a rubber pad.
5. The LCD display screen pressure resistance testing device according to claim 1, characterized in that: The moving assembly includes a synchronous pulley (13), a belt (14), a hinge block (15), and a third motor (16). The synchronous pulleys (13) are rotatably connected to both the front and rear ends inside the conveying trough (12), and the synchronous pulleys (13) are connected together by the belt (14). The hinge block (15) is slidably connected to the top of the conveying trough (12). The third motor (16) is fixedly installed at the front end of the side wall of the conveying trough (12), and the output end of the third motor (16) is connected to the shaft of the front synchronous pulley (13) in the conveying trough (12).
6. The LCD display screen pressure resistance testing device according to claim 5, characterized in that: The bottom of the hinge block (15) is connected to the belt body of the belt (14), and the top of the hinge block (15) is fixedly connected to the mounting bracket (2).