Test board for LED display mainboard

Abstract

The utility model discloses a test board used for an LED display mainboard, comprising a work bench which is a support bench with a hole in the middle; the rotating table is rotationally arranged in the middle of the working table, a driving part for driving the working table to rotate is arranged at the bottom of the working table, a plurality of terminal tables are arranged at the top of the rotating table at equal intervals, and air cylinders are arranged above the terminal tables; the beneficial effects of the utility model are that the terminal block provides a fixed test point for the display mainboard, and the arrangement of the cylinder and the pressing plate ensures that the mainboard is in good contact with the test point in the test process, thereby reducing test errors caused by poor contact; due to the use of an air cylinder, the labor required by manual pressing is reduced, and the convenience and repeatability of operation are improved through an automatic pressing system; and a reset spring lifting plate mechanism in the storage box enables the display mainboards to be tested to be automatically sequenced to the uppermost layer, so that an operator can quickly take and use the display mainboards conveniently, and the pre-preparation speed of the test is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of LED display processing, in particular to a test bench for the main board of an LED display. Background Technique

[0002] During the processing of an LED display, it is necessary to test its main board. Through the test, it can be verified whether the performance of the main board of the LED display meets the design requirements, so as to ensure the quality and reliability of the product. During the test process, possible faults or problems can be discovered and solved in time, avoiding bad phenomena in the subsequent use process of the product. The test can also evaluate the performance of the main board of the LED display, such as brightness, contrast, color accuracy, etc., to ensure that the product performance meets the customer's needs.

[0003] During the existing test, it is mostly through manual pressing and visual inspection. Originally, at least 7 people were required for manual testing of a single wire, which required a large amount of human resources. And manual pressing for a long time cannot ensure the uniformity of the force, resulting in test errors caused by poor contact. And now, the main board is mostly sent to the side of the test bench by a material cart, and it needs to be taken manually by bending down. The operator will consume a lot of physical strength when taking and placing the board, which is time-consuming and laborious. Content of the Utility Model

[0004] The purpose of the utility model is to provide a test bench for the main board of an LED display to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A test bench for the main board of an LED display, including:

[0006] A workbench, the workbench is a support platform with a hole in the middle;

[0007] A rotating table, the rotating table is rotatably placed in the middle of the workbench, a driving part for driving the workbench to rotate is arranged at the bottom of the workbench, a plurality of terminal tables are equidistantly arranged on the top of the rotating table, and a cylinder is arranged above the terminal table. The output end of the cylinder is fixedly connected with a pressing plate for pressing the main board of the display;

[0008] A storage box, the storage box is placed at the bottom of the workbench, a lifting plate is slidably arranged inside the storage box, and reset springs for driving the lifting plate to rise are arranged on both sides of the storage box to ensure that the main board of the display at the uppermost layer of the lifting plate is located above the workbench.

[0009] Preferably, a display is fixedly connected to the top of the workbench through a bracket.

[0010] Preferably, the driving part includes a servo motor fixed to the bottom of the workbench. A pinion is fixedly connected to the output end of the servo motor. A large gear meshing with the pinion is fixedly connected to the bottom of the rotating table.

[0011] Preferably, a support table is fixedly connected to the bottom of the terminal block. The support table is fixedly connected to the rotating table. A support plate is fixedly connected to the top of the support table.

[0012] Preferably, a connecting block is fixedly connected to one side of the support plate. A limiting block is fixedly connected to the outside of the connecting block. The air cylinder is fixedly connected to the top of the limiting block. A limiting slide bar is slidably connected to the bottom of the limiting block. The end of the limiting slide bar is fixedly connected to the pressing plate.

[0013] Preferably, a guide rod is fixedly connected to the outside of the storage box. One end of the lifting plate is slidably connected to the guide rod. The return spring is located below the lifting plate.

[0014] Preferably, a material taking frame is arranged at the middle part of the workbench corresponding to the position of the storage box.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows: The terminal block provides fixed test points for the display main board. The arrangement of the air cylinder and the pressing plate ensures good contact between the main board and the test points during the test, reducing test errors caused by poor contact; The use of the air cylinder reduces the labor required for manual pressing, and the automatic pressing system improves the convenience and repeatability of the operation; The return spring and lifting plate mechanism in the storage box enables the display main boards to be tested to be automatically sorted to the top layer, facilitating the operator to quickly pick and place, and improving the speed of pre-test preparation; The setting of the return spring enables the lifting plate to automatically return to the top position, reducing the physical consumption of the operator when picking and placing the board; Through the setting of the rotating table, the test process can be continuously carried out without stopping the machine. While testing, the next main board can be prepared, greatly improving the test throughput. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present utility model;

[0017] Figure 2 is a schematic structural diagram of the position of the servo motor of the present utility model;

[0018] Figure 3 is an enlarged view of part A of the present utility model;

[0019] Figure 4 is a schematic structural diagram of the storage box of the present utility model;

[0020] Figure 5 is a schematic structural diagram of the return spring of the present utility model.

[0021] In the figure: 1, workbench; 2, large gear; 3, display; 4, rotating table; 5, support table; 6, terminal block; 7, support plate; 8, connecting block; 9, limit block; 10, cylinder; 11, limit slide bar; 12, pressing plate; 13, small gear; 14, material taking frame; 15, storage box; 16, servo motor; 17, lifting plate; 18, guide rod; 19, return spring. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figure 1 , 2 As shown in FIGS. 3, 4, and 5, the present invention provides a technical solution: a test bench for an LED display main board, including: a workbench 1, the workbench 1 is a support table with a hole in the middle; a rotating table 4 is rotatably placed in the middle of the workbench 1, and a driving part for driving the workbench 1 to rotate is provided at the bottom of the workbench 1. Four terminal blocks 6 are equidistantly arranged on the top of the rotating table 4. Above the terminal block 6 is a cylinder 10, and the output end of the cylinder 10 is fixedly connected with a pressing plate 12 for pressing the display main board; a storage box 15 is placed at the bottom of the workbench 1, and a lifting plate 17 is slidably arranged inside the storage box 15. Return springs 19 for driving the lifting plate 17 to rise are arranged on both sides of the storage box 15 to ensure that the display main board on the uppermost layer of the lifting plate 17 is located above the workbench 1.

[0024] It should be noted that in the present invention, the to-be-tested display main board is placed on the top of the lifting plate 17 inside the storage box 15. Under the elastic force of the return spring 19, the to-be-tested display main board on the uppermost layer is always higher than the workbench 1, so as to facilitate its taking. After taking the to-be-tested display main board, it is placed on the top of the terminal block 6, and the pressing plate 12 is driven by the cylinder 10 to press it. Press the corresponding test switch for detection. During the detection process, the driving part drives the rotating table 4 to rotate, so that another terminal block 6 rotates to the operator's front, and then the placement and installation are carried out again. When the terminal block 6 of the initially placed to-be-tested display main board rotates one week and moves to the operator's front, the detection is completed. Sorting is carried out according to the corresponding detection result indicator, and this cycle continues.

[0025] Please refer to Figure 1 As shown in the figure, a display 3 is fixedly connected to the top of the workbench 1 through a bracket.

[0026] It should be noted that the display 3 of the present utility model serves as a human-machine interface, enabling the operator to conveniently set test parameters, start test programs, and view test results. The test bench is equipped with a main board test system, a power supply module, a signal generator and analyzer, an image generator, an automated control software, an interface adapter and converter, which are connected to the terminal block 6 and the display 3. Power supply module: Provides adjustable power output to simulate different voltage and current environments, ensuring that the main board can operate normally under various power supply conditions. Signal generator and analyzer: Generates analog and digital signals to test the video input / output ports of the main board, analyzes the signal quality transmitted through the main board, and detects signal integrity and anti-interference ability. Image generator: Generates various static or dynamic images to test the image processing ability of the main board, and can simulate video outputs with different resolutions and color depths. Automated control software: Controls the entire test process, automatically runs all test items, records test data, analyzes the performance of the main board, and generates test reports. Interface adapter and converter: Ensures that the test system is compatible with various types of display main board interfaces, such as HDMI, VGA, DisplayPort, etc., and converts different types of signals to ensure accurate signal transmission to the main board. Monitoring and diagnostic tools: Monitor the performance of the main board during the test process and diagnose possible fault points or performance deficiencies of the main board.

[0027] Please refer to Figure 2 As shown, the driving part includes a servo motor 16 fixed to the bottom of the workbench 1. The output end of the servo motor 16 is fixedly connected with a small gear 13, and a large gear 2 meshing with the small gear 13 is fixedly connected to the bottom of the rotating table 4.

[0028] It should be noted that the servo motor 16 of the present utility model drives the large gear 2 to rotate through the small gear 13, and the large gear 2 drives the rotating table 4 to rotate, so that the rotating table 4 rotates 90 degrees each time. The test process can be continuously carried out without stopping the machine. While testing, the next main board can be prepared, greatly improving the test throughput.

[0029] Please refer to Figure 1 、 3 As shown, a support platform 5 is fixedly connected to the bottom of the terminal block 6. The support platform 5 is fixedly connected to the rotating table 4. A support plate 7 is fixedly connected to the top of the support platform 5. A connecting block 8 is fixedly connected to one side of the support plate 7. A limiting block 9 is fixedly connected to the outside of the connecting block 8. A cylinder 10 is fixedly connected to the top of the limiting block 9. A limiting slide bar 11 is slidably connected to the bottom of the limiting block 9, and the end of the limiting slide bar 11 is fixedly connected to a pressing plate 12.

[0030] It should be noted that in the present utility model, the display main board is placed at a fixed position of the terminal block 6, and the pressing plate 12 is driven by the air cylinder 10 to press the display main board. During the downward movement of the pressing plate 12, the pressing plate 12 drives the limiting slide bar 11 to move downward, and the stability of the lifting of the pressing plate 12 is ensured by the limitation of the limiting slide bar 11. The terminal block provides fixed test points for the display main board. Through the setting of the air cylinder and the pressing plate, good contact between the main board and the test points during the test is ensured, reducing test errors caused by poor contact. A buffer pad made of silica gel material is provided at the bottom of the pressing plate to prevent damage to the display main board, and the connecting block 8 can adjust the elongation limit height of the pressing plate 12 with bolts, allowing the pressing plate to move up and down within a certain range, so that it can be adjusted according to main boards of different heights, making the test more flexible and adaptable.

[0031] Please refer to Figure 5 As shown, a guide rod 18 is fixedly connected to the outside of the storage box 15. One end of the lifting plate 17 is slidably connected to the guide rod 18. The return spring 19 is located below the lifting plate 17. A material taking frame 14 is provided at the middle part of the workbench 1 corresponding to the position of the storage box 15.

[0032] It should be noted that a limiting frame for limiting the storage box 15 is provided at the bottom of the workbench 1 of the present utility model. When ensuring the alignment of the storage box 15 and the limiting frame, the storage box 15 is located directly below the material taking frame 14. The storage box 15 is located at the bottom of the workbench and internally contains a slidable lifting plate 17. The lifting plate is driven to rise by the return springs 19 on both sides, ensuring that the uppermost display main board is always above the workbench. The uppermost display main board is transported out of the material taking frame 14, facilitating the operator to take it.

[0033] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front part", "center", "both ends", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.

[0034] In addition, the terms "first", "second", "third", "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", "third", "fourth" may explicitly or implicitly include at least one of such features.

[0035] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "setting", "connection", "fixation", "swivel connection" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0036] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A test bench for LED display motherboard, characterized in that: include: A workbench (1), the workbench (1) is a support table with a hole in the middle; A rotating table (4), the rotating table (4) is rotatably placed in the middle of the workbench (1), a driving unit for driving the workbench (1) to rotate is provided at the bottom of the workbench (1), a plurality of terminal tables (6) are equidistantly provided at the top of the rotating table (4), a cylinder (10) is provided above the terminal table (6), and a pressure plate (12) is fixedly connected to the output end of the cylinder (10) for pressing the pressure plate (12) of the display mainboard; A storage box (15) is placed at the bottom of the workbench (1), a lifting plate (17) is slidably arranged inside the storage box (15), and return springs (19) are arranged on both sides of the storage box (15) for driving the lifting plate (17) to rise, so as to ensure that the display motherboard on the uppermost layer of the lifting plate (17) is located above the workbench (1).

2. A test bench for an LED display mainboard according to claim 1, characterized in that: The top of the workbench (1) is fixedly connected to a display (3) via a bracket.

3. A test bench for an LED display mainboard according to claim 1, characterized in that: The driving unit comprises a servo motor (16) fixedly connected to the bottom of the workbench (1), the output end of the servo motor (16) is fixedly connected to a small gear (13), and the bottom of the rotating table (4) is fixedly connected to a large gear (2) meshing with the small gear (13).

4. A test bench for an LED display mainboard according to claim 1, characterized in that: The bottom of the terminal platform (6) is fixedly connected to a support platform (5), the support platform (5) is fixedly connected to the rotating platform (4), and the top of the support platform (5) is fixedly connected to a support plate (7).

5. A test bench for a LED display mainboard according to claim 4, characterized in that: A connecting block (8) is fixedly connected to one side of the support plate (7), a limiting block (9) is fixedly connected to the outer side of the connecting block (8), the cylinder (10) is fixedly connected to the top of the limiting block (9), the bottom of the limiting block (9) is slidably connected to a limiting slide rod (11), and the end of the limiting slide rod (11) is fixedly connected to the pressure plate (12).

6. A test bench for a LED display mainboard according to claim 1, characterized in that: A guide rod (18) is fixedly connected to the outer side of the storage box (15), one end of the lifting plate (17) is slidably connected to the guide rod (18), and the return spring (19) is located below the lifting plate (17).

7. A test bench for a LED display mainboard according to claim 6, characterized in that: A material taking frame (14) is provided in the middle of the workbench (1) at a position corresponding to the storage box (15).

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