A detection platform for liquid crystal panel

Abstract

A testing platform for LCD panels is disclosed, comprising a rotating assembly and a stage assembly. The rotating assembly is disposed on the non-working surface of the stage assembly to drive the stage assembly to rotate. The working surface of the stage assembly is provided with multiple vacuum suction cup structures. The stage assembly includes a fixed stage and an opening / closing stage. The opening / closing stage includes a first opening / closing stage and a second opening / closing stage symmetrically disposed on both sides of the fixed stage. The non-working surface of the fixed stage is provided with a guide module and an opening / closing motor. The ends of the first and second opening / closing stages along their length direction are synchronously connected through two sets of guide modules. The opening / closing motor is disposed at one end to drive the first and second opening / closing stages to move synchronously in a direction away from or towards the fixed stage. This application can automatically open and close the stage opening / closing module to adapt to the circuit edge testing of LCD panels of different sizes, improve the compatibility of LCD panels of different sizes, avoid frequent stage replacements, and reduce production costs.

Description

Technical Field

[0001] This invention relates to the technical field of liquid crystal panel testing apparatus, and particularly to a testing platform for liquid crystal panels. Background Technology

[0002] In the production process of LCD panels, quality inspection is required to obtain qualified LCD panels. The general inspection process is to place the LCD panel on the inspection platform, move the LCD panel to the inspection unit by a moving stage, and then have the inspection unit inspect the LCD panel.

[0003] Existing testing platforms can only locate one type of LCD panel. When the specifications of the LCD panel change, the testing platform needs to be changed frequently, which greatly increases the production cost. At the same time, when testing multiple driving circuit edges on the LCD panel, it also increases the loading and unloading time, resulting in extremely low testing efficiency. Summary of the Invention

[0004] In order to solve the above-mentioned technical problems in the testing of liquid crystal panels in the prior art, the present invention proposes a testing platform for liquid crystal panels to solve the above-mentioned problems in the prior art.

[0005] This invention proposes a testing platform for liquid crystal panels, comprising a rotating assembly and a stage assembly. The rotating assembly is disposed on the non-working surface of the stage assembly to drive the stage assembly to rotate. The working surface of the stage assembly is provided with multiple vacuum suction cup structures. The stage assembly includes a fixed stage and an opening / closing stage.

[0006] The opening and closing platform includes a first opening and closing platform and a second opening and closing platform symmetrically arranged on both sides of a fixed platform. The non-working surface of the fixed platform is equipped with a guide module and an opening and closing motor. The ends of the first and second opening and closing platforms along their length are synchronously connected via two sets of guide modules. The opening and closing motor is located at one end to drive the first and second opening and closing platforms to move synchronously away from or towards the fixed platform. This testing platform can achieve the adsorption of LCD panels of different sizes through the synchronous opening and closing of the platforms. Simultaneously, a rotating component allows for rotation at different angles to position the LCD panels and detect the driving circuit edges on different sides.

[0007] Preferably, the rotating assembly includes a rotary motor, a fixed bracket, a rotary reducer, a connecting shaft, and a rotating collar. The fixed bracket is fixedly connected to the outer ring of the rotating collar. The output shaft of the rotary motor is connected to the inner ring of the rotary reducer. One end face of the connecting shaft is connected to the output disk of the rotary reducer, and the axial cylindrical surface of the connecting shaft is connected to the inner ring of the rotating collar. The other end of the connecting shaft is fixedly connected to the non-working surface of the fixed stage. This configuration enables the stage to rotate stably for LCD panel positioning and detection of different sides of the drive circuit.

[0008] Preferably, multiple extensions are provided perpendicular to the length direction of the first and second opening and closing platforms and extending toward the fixed platform, and a corresponding area for accommodating the extensions is provided on the fixed platform.

[0009] Furthermore, the end of the extension is provided with a vacuum suction cup. This feature improves the stability of the opening and closing platform in adsorbing the liquid crystal panel.

[0010] Preferably, a pair of fixed plates are arranged in parallel on the fixed platform, and a pair of connecting plates are respectively provided at the ends of the first and second opening and closing platforms along their length. The guide module includes a slider disposed on the fixed plate and a guide rail on the connecting plate, with the slider cooperating with the guide rail. This arrangement enables the two opening and closing platforms to stably achieve linear opening and closing.

[0011] In a further preferred embodiment, the two ends of the fixed platform are respectively provided with a drive pulley assembly and a driven pulley assembly along the opening and closing direction of the opening and closing platform.

[0012] More preferably, the connecting plate includes a first connecting plate disposed at both ends of the first opening and closing platform and a second connecting plate disposed at both ends of the second opening and closing platform, and the fixing plate is provided with a plurality of sliders that respectively cooperate with the guide rails on the first connecting plate and the second connecting plate.

[0013] In a further preferred embodiment, the opening and closing motor is mounted on the drive pulley assembly to drive the pulley assembly to rotate, causing the first connecting plate and the second connecting plate to move away from or towards each other synchronously. This configuration enables the automatic driving of the opening and closing action of the opening and closing platform.

[0014] In a further preferred embodiment, on one side of the driving pulley assembly, one of the first and second connecting plates is connected to the driving pulley assembly via a clamping plate; on the other side of the driven pulley assembly, the first and second connecting plates are respectively connected to belts in two directions of movement of the pulley assembly via clamping plates. This arrangement enables synchronous opening and closing of the two opening and closing platforms.

[0015] Preferably, it also includes a vacuum control module, which is disposed on the non-working surface of the fixed platform and includes an interconnected assembly of solenoid valves and a terminal block. This configuration allows for automatic selection of the opening and closing of the vacuum zone, reducing operator workload and improving automation levels.

[0016] This invention provides a testing platform for LCD panels. It utilizes a platform opening and closing module for automatic opening and closing to adapt to the circuit edge testing of LCD panels of different sizes, improving compatibility with different panel sizes, avoiding frequent platform changes, and reducing production costs. A vacuum control module automatically selects the opening and closing of the vacuum area according to the different sizes of the LCD panels, reducing operator workload and improving factory automation. A rotating assembly module enables simultaneous testing of three driving circuit edges of the LCD panel in a single loading operation, significantly reducing loading and unloading time, improving production efficiency, and lowering production costs. Attached Figure Description

[0017] The accompanying drawings are included to provide a further understanding of the embodiments and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments and, together with the description, serve to explain the principles of the invention. Other embodiments and many anticipated advantages of the embodiments will be readily recognized as they become better understood through reference to the following detailed description. Elements in the drawings are not necessarily to scale. The same reference numerals refer to corresponding similar parts.

[0018] Figure 1 This is a schematic diagram of the structure of a testing platform for a liquid crystal panel according to an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the detection platform from another angle according to a specific embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the stage working surface of a testing platform for a liquid crystal panel according to a specific embodiment of the present invention;

[0021] The meanings of the numbers in the diagram are as follows: 1-rotary motor, 2-fixed bracket, 3-rotary collar, 4-fixed platform, 5-first opening and closing platform, 6-second opening and closing platform, 7-driven pulley assembly, 8-drive pulley assembly, 9-opening and closing motor, 10-fixed plate, 11-slider, 12-first connecting plate, 13-second connecting plate, 14-vacuum suction cup, 15-connecting shaft. Detailed Implementation

[0022] In the following detailed description, reference is made to the accompanying drawings, which form part of the detailed description and are illustrated by specific illustrative embodiments in which the invention may be practiced. In this regard, directional terms such as “top,” “bottom,” “left,” “right,” “up,” “down,” etc., are used with reference to the orientation of the described figures. Because components of the embodiments can be positioned in several different orientations, directional terms are used for illustrative purposes and are by no means limiting. It should be understood that other embodiments may be utilized or logical changes may be made without departing from the scope of the invention. Therefore, the following detailed description should not be taken in a limiting sense, and the scope of the invention is defined by the appended claims.

[0023] Figure 1 A schematic diagram of a testing platform for a liquid crystal panel according to an embodiment of the present invention is shown. Figure 1 As shown, the testing platform for LCD panels mainly includes a rotating assembly and a stage assembly. The working surface of the stage assembly is used to adsorb the LCD panel, and the non-working surface is connected to the rotating assembly. The rotating assembly controls the rotation of the stage assembly to perform the testing operation. The rotating assembly specifically includes a rotary motor 1, a fixed bracket 2, a rotating collar 3, and a connecting shaft 15. The fixed bracket 2 is fixedly connected to the outer ring of the rotating collar 3. The output shaft of the rotary motor 1 is connected to the inner ring of the rotary reducer. One end face of the connecting shaft 15 is connected to the output disk of the rotary reducer, and the axial cylindrical surface of the connecting shaft 15 is connected to the inner ring of the rotating collar 3. The other end of the connecting shaft 15 is fixedly connected to the non-working surface of the driving stage. The rotary motor 1 is connected to one end of the connecting shaft 15 through the rotary reducer to drive the stage assembly to rotate, so as to adapt to the inspection of the other driving circuit side of the LCD panel after the inspection of one driving circuit side is completed.

[0024] In a specific embodiment, the platform assembly includes a fixed platform 4 and an opening / closing platform. The opening / closing platform includes a first opening / closing platform 5 and a second opening / closing platform 6 symmetrically arranged on both sides of the fixed platform 4. The fixed platform 4 is provided with a guide module for guiding the opening / closing platforms to perform opening and closing actions. Figure 2 The schematic diagram of another angle of the detection platform according to a specific embodiment of the present invention is shown below, and the structure is described in detail:

[0025] The fixed platform 4 is equipped with a pair of fixed plates 10, a driven pulley set 7, and a driving pulley set 8, so as to... Figure 2Taking the driven pulley assembly 7 as an example in the view, the first opening and closing platform 5 is movably engaged with the fixed plate 10 through the first connecting plate 12, and the second opening and closing platform 6 is movably engaged with the fixed plate 10 through the second connecting plate 13. Specifically, the engagement can be via guide rails, i.e., multiple sliders 11 are respectively set on the fixed plate 10, and guide rails are correspondingly set on the first connecting plate 12 and the second connecting plate 13. The left and right movement of the first connecting plate 12 and the second connecting plate 13 is achieved through the engagement of the sliders and the guide rails. Furthermore, the first connecting plate 12 is connected to the belt inside the driven pulley assembly 7 through a clamping plate, and the second connecting plate 13 is connected to the belt outside the driven pulley assembly 7 through a clamping plate. This arrangement allows the first connecting plate 12 and the second connecting plate 13 to move synchronously under the guidance of the guide rails, but in opposite directions. This is reflected in the first opening and closing platform 5 and the second opening and closing platform 6 as the two opening and closing platforms moving in opposite directions. For the engagement of one side of the active pulley assembly 8, the opening and closing motor 9 is used as the drive to drive the active pulley assembly 8 to rotate. Based on the setting of the driven pulley assembly 7 so that the first opening and closing platform 5 and the second opening and closing platform 6 operate synchronously and in opposite directions, the active pulley assembly 8 only needs to select one of the first connecting plate 12 or the second connecting plate 13 on this side as the drive to realize the synchronous opening and closing of the two opening and closing platforms. In this embodiment, it is achieved by connecting the other pair of first connecting plates on this side with the inner side of the active pulley assembly 8 through a clamping plate. In another embodiment, the opening and closing platform can also be driven by connecting the other pair of second connecting plates on this side with the outer side of the active pulley assembly 8 through a clamping plate.

[0026] In a specific embodiment, a vacuum control module is also included. This module is located on the non-working surface of the fixed platform and includes an interconnected assembly of solenoid valves and a terminal block. This vacuum control module can control the automatic adsorption of products of different specifications, reducing the need for manual opening and closing of the vacuum circuit and improving the overall level of automation.

[0027] Continue to refer to Figure 3 , Figure 3 A schematic diagram of the stage working surface of a testing platform for a liquid crystal panel according to a specific embodiment of the present invention is shown, as follows. Figure 3 As shown, multiple vacuum suction cups are arranged on the working surfaces of the first opening and closing stage 5, the second opening and closing stage 6, and the fixed stage 4 to adsorb LCD panels. These vacuum suction cups are connected to the terminal blocks of the vacuum control module, which can automatically select the opening and closing of vacuum areas to meet different adsorption requirements, resulting in a high level of automation.

[0028] In a specific embodiment, multiple extensions are provided perpendicular to the length direction of the first opening and closing platform 5 and the second opening and closing platform 6 and extending towards the fixed platform. A vacuum suction cup 14 is provided at the end of the extension. A corresponding area for accommodating the extension is provided on the fixed platform. With this arrangement, the liquid crystal panel can be adsorbed by the vacuum suction cup of the extension when the two opening and closing platforms are extended, thereby improving the stability of adsorption.

[0029] The overall testing process is as follows: The platform module moves to the product feeding position. According to the different specifications and sizes of the LCD panel, the opening and closing motor of the platform assembly operates, driving the active pulley group 8 to move. Through the guidance of the guide module and the action of the driven pulley group 7, the first opening and closing platform 5 and the second opening and closing platform 6 are automatically adjusted along the X direction. The product is handed over to the fixed platform 4. The platform vacuum control module is automatically opened, and the product is adsorbed onto the platform. Once the vacuum on the product platform is established, the platform moves to the working position to perform the first edge detection of the LCD panel driving circuit. After the first edge detection of the driving circuit is completed, the product platform is driven to rotate 90 degrees clockwise by the rotary motor to perform the second edge detection of the LCD panel driving circuit. After the second edge detection of the driving circuit is completed, the product platform is driven to rotate 180 degrees counterclockwise by the rotary motor to perform the third edge detection of the LCD panel driving circuit. After the three edge detections of the LCD panel driving circuit are completed, the product platform moves to the discharge position, and the operation ends.

[0030] This application enables automatic opening and closing of the platform to accommodate the circuit edge detection of LCD panels of different sizes, improving the compatibility of LCD panels of different sizes, avoiding frequent platform changes, and reducing production costs; by using a vacuum control module, the opening and closing of the vacuum area is automatically selected according to the different sizes of the LCD panels, reducing the workload of operators and improving the level of factory automation; by rotating the combination module, the detection of the three driving circuit edges of the LCD panel can be performed simultaneously in one loading, greatly reducing loading and unloading time, improving production efficiency, and reducing production costs.

[0031] It is evident that those skilled in the art can make various modifications and alterations to the embodiments of the present invention without departing from the spirit and scope of the invention. In this way, the invention is also intended to cover such modifications and alterations if they fall within the scope of the claims and their equivalents. The word "comprising" does not exclude the presence of other elements or steps not listed in the claims. The simple fact that certain measures are described in mutually different dependent claims does not indicate that a combination of these measures cannot be used for profit. Any reference numerals in the claims should not be considered as limiting the scope.

Claims

1. A testing platform for liquid crystal panels, characterized in that, The system includes a rotating assembly and a stage assembly. The rotating assembly is disposed on the non-working surface of the stage assembly to drive the stage assembly to rotate. The working surface of the stage assembly is provided with multiple vacuum suction cup structures. The stage assembly includes a fixed stage and an opening / closing stage. The opening and closing platform includes a first opening and closing platform and a second opening and closing platform symmetrically arranged on both sides of the fixed platform. The non-working surface of the fixed platform is provided with a guide module and an opening and closing motor. The ends of the first and second opening and closing platforms along their length direction are synchronously connected via two sets of guide modules. The opening and closing motor is located at one end to drive the first and second opening and closing platforms to move synchronously in a direction away from or towards the fixed platform. A pair of fixed plates are arranged parallel to each other on the fixed platform. A pair of connecting plates are respectively provided at the ends of the first and second opening and closing platforms along their length direction. The guide module includes a slider on the fixed plate and a guide rail on the connecting plate, with the slider cooperating with the guide rail. The two ends of the fixed platform are respectively located along the opening and closing direction of the opening and closing platform. The system comprises an active pulley assembly and a driven pulley assembly. The connecting plate includes a first connecting plate located at both ends of the first opening / closing platform and a second connecting plate located at both ends of the second opening / closing platform. The fixed plate has multiple sliders that respectively cooperate with guide rails on the first and second connecting plates. An opening / closing motor is mounted on the active pulley assembly to drive the pulley assembly to rotate, causing the first and second connecting plates to move away from or towards each other synchronously. On one side of the active pulley assembly, one of the first and second connecting plates is connected to the active pulley assembly via a clamping plate. On one side of the driven pulley assembly, the first and second connecting plates are respectively connected to belts in two directions of movement of the pulley assembly via clamping plates.

2. The testing platform for liquid crystal panels according to claim 1, characterized in that, The rotating assembly includes a rotary motor, a fixed bracket, a rotary reducer, a connecting shaft, and a rotating collar. The fixed bracket is fixedly connected to the outer ring of the rotating collar. The output shaft of the rotary motor is connected to the inner ring of the rotary reducer. One end face of the connecting shaft is connected to the output disk of the rotary reducer, and the axial cylindrical surface of the connecting shaft is connected to the inner ring of the rotating collar. The other end of the connecting shaft is fixedly connected to the non-working surface of the fixed platform.

3. The testing platform for liquid crystal panels according to claim 1, characterized in that, Multiple extensions are provided perpendicular to the length direction of the first and second opening and closing platforms and extending toward the fixed platform, and a corresponding area for accommodating the extensions is provided on the fixed platform.

4. The testing platform for liquid crystal panels according to claim 3, characterized in that, A vacuum suction cup is provided at the end of the extension.

5. The testing platform for liquid crystal panels according to claim 1, characterized in that, It also includes a vacuum control module, which is disposed on the non-working surface of the fixed platform and includes an interconnected solenoid valve assembly and a terminal block.

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