Liquid crystal display testing device

Abstract

The utility model relates to the technical field of liquid crystal screen testing, and discloses a liquid crystal screen testing device which comprises a base, a support installed on the base, a top plate installed on the support, two symmetrically-distributed first hydraulic rods arranged on the top plate and fixedly connected with a U-shaped adjusting frame, and further comprises two limiting rods installed on the top of the U-shaped adjusting frame. The limiting rod is in sliding connection with a U-shaped moving frame; according to the utility model, the liquid crystal screen is clamped through the arranged clamping mechanism, and the U-shaped moving frame can be driven to move through the moving mechanism, so that the sliding mechanism and the elastic mechanism are matched to enable the detection head on the mounting plate to gradually apply pressure to the liquid crystal screen and realize sliding pressure application; therefore, the pressure resistance condition when sliding pressure is applied to the surface of the liquid crystal screen can be simulated, and compared with mechanical pressure application detection purely carried out on a single position, the detection of the device is more comprehensive.

Description

TECHNICAL FIELD

[0001] The utility model relates to liquid crystal screen test technical field, specifically a liquid crystal screen testing device. BACKGROUND

[0002] The liquid crystal screen testing device is a special equipment for detecting the performance, quality and reliability of the liquid crystal display screen, and is widely applied in the production and manufacturing, maintenance and research and development fields.

[0003] In the production process of the liquid crystal screen, the compression resistance of the liquid crystal screen needs to be tested. In the prior art, when the compression resistance of the liquid crystal screen is tested, the liquid crystal screen is usually placed on the test table, and then the surface of the liquid crystal screen is pressed by the pressing plate to detect the compression resistance of the liquid crystal screen. However, the prior art only mechanically presses the single position of the liquid crystal screen, and cannot simulate the situation of sliding pressure on the surface of the liquid crystal screen. Therefore, improvement is needed. Therefore, the technical personnel in the field propose a liquid crystal screen testing device to solve the problems in the above background. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a liquid crystal screen testing device to solve the problems in the above background.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A liquid crystal screen testing device, comprising a base, a support is installed on the base, a top plate is installed on the support, two first hydraulic rods are symmetrically arranged on the top plate, the first hydraulic rods are fixedly connected with U-shaped adjusting frames, and the liquid crystal screen testing device further comprises:

[0007] Two limiting rods are installed on the top of the U-shaped adjusting frame, and the limiting rods are slidably connected with U-shaped moving frames;

[0008] A moving mechanism is arranged in the U-shaped adjusting frame and is used for driving the U-shaped moving frame to move;

[0009] A sliding mechanism is arranged between the U-shaped moving frame and the U-shaped adjusting frame and is used for realizing the sliding pressure on the liquid crystal screen;

[0010] An elastic mechanism is connected with the sliding mechanism and is used for adjusting the pressure degree on the liquid crystal screen;

[0011] A mounting plate is connected with the elastic mechanism, a plurality of detection heads are installed on the mounting plate in an interval, and the detection heads are used for pressing the surface of the liquid crystal screen;

[0012] A clamping mechanism is arranged on the base and is used for clamping and positioning the liquid crystal screen.

[0013] As a further scheme of the utility model: the mobile mechanism includes the threaded rod rotationally arranged at the top of the U-shaped adjusting frame, the threaded rod is in threaded connection with the U-shaped mobile frame, a motor is installed on the U-shaped adjusting frame, and a driving end of the motor is connected with the threaded rod.

[0014] As a further scheme of the utility model: the sliding mechanism includes the limiting grooves opened in the inner walls of the U-shaped mobile frame, the limiting grooves are in sliding connection with the movable frame, the movable frame is installed with the movable rod, the two sides of the U-shaped mobile frame are provided with the movable grooves in movable connection with the movable rod, and the two sides of the U-shaped adjusting frame are provided with the Z-shaped grooves in sliding connection with the movable rod.

[0015] As a further scheme of the utility model: the elastic mechanism includes the fixing cylinder connected with the movable frame, the sliding plate is slidably arranged in the fixing cylinder, the sliding plate is connected with the sliding rod, the sliding rod is connected with the mounting plate, and the fixing cylinder is provided with the spring connected with the sliding plate.

[0016] As a further scheme of the utility model: the clamping mechanism includes the side plates installed on the two sides of the base, the second hydraulic rod is installed on the side plate, the second hydraulic rod is connected with the clamping plate, and the clamping plate is installed with the guide rod in sliding connection with the side plate.

[0017] Compared with the prior art, the utility model has the advantages that the clamping mechanism is arranged to clamp the liquid crystal screen, the mobile mechanism can drive the U-shaped mobile frame to move, the sliding mechanism and the elastic mechanism can make the detection head on the mounting plate gradually apply pressure to the liquid crystal screen and realize sliding pressure application, the anti-pressure situation when sliding pressure application is simulated on the surface of the liquid crystal screen can be realized, and the detection of the device is more comprehensive compared with the simple mechanical pressure application detection on a single position. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structural schematic view of a liquid crystal screen testing device.

[0019] Figure 2 It is a structural schematic view of a mobile mechanism and a sliding mechanism in a liquid crystal screen testing device.

[0020] Figure 3 It is a structural schematic view of a U-shaped mobile frame and a detection head in a liquid crystal screen testing device.

[0021] Figure 4 It is a structural schematic view of a movable rod and a Z-shaped groove in a liquid crystal screen testing device.

[0022] Figure 5 It is a structural schematic view of an elastic mechanism in a liquid crystal screen testing device.

[0023] In the figure: 1, base; 2, support; 3, top plate; 4, first hydraulic rod; 5, U-shaped adjusting frame; 6, threaded rod; 7, U-shaped moving frame; 8, motor; 9, limiting rod; 10, movable groove; 11, movable rod; 12, Z-shaped groove; 13, movable frame; 14, limiting groove; 15, fixed cylinder; 16, sliding plate; 17, spring; 18, sliding rod; 19, mounting plate; 20, detection head; 21, side plate; 22, second hydraulic rod; 23, clamping plate; 24, guide rod. DETAILED DESCRIPTION

[0024] The technical solutions of the patent will be further described in detail in combination with specific embodiments.

[0025] Please refer to Figures 1-5 A liquid crystal screen testing device, 1, base 1; 2, support 2; 3, top plate 3; 4, first hydraulic rod 4; 5, U-shaped adjusting frame 5; 6, threaded rod 6; 7, U-shaped moving frame 7; 8, motor 8; 9, limiting rod 9; 1, movable groove 1; 11, movable rod 11; 12, Z-shaped groove 12; 13, movable frame 13; 14, limiting groove 14; 15, fixed cylinder 15; 16, sliding plate 16; 17, spring 17; 18, sliding rod 18; 19, mounting plate 19; 2, detection head 2; 21, side plate 21; 22, second hydraulic rod 22; 23, clamping plate 23; 24, guide rod 24;

[0026] It comprises a base 1, the base 1 is installed with a support 2, the support 2 is installed with a top plate 3, the top plate 3 is provided with two first hydraulic rods 4 symmetrically distributed, the first hydraulic rod 4 is fixedly connected with a U-shaped adjusting frame 5, and the U-shaped adjusting frame 5 is installed with two limiting rods 9 on the top of the U-shaped adjusting frame 5, the limiting rod 9 is slidably connected with a U-shaped moving frame 7;

[0027] The U-shaped moving frame 7 is installed with a motor 8, a limiting rod 9 and a movable groove 10, the movable groove 10 is slidably connected with a movable rod 11, the movable rod 11 is installed with a Z-shaped groove 12, the Z-shaped groove 12 is slidably connected with a movable frame 13, the movable frame 13 is installed with a limiting groove 14, the limiting groove 14 is slidably connected with a fixed cylinder 15, the fixed cylinder 15 is slidably connected with a sliding plate 16, the sliding plate 16 is installed with a spring 17, the spring 17 is slidably connected with a sliding rod 18, the sliding rod 18 is installed with a mounting plate 19, the mounting plate 19 is installed with a detection head 2, and the detection head 2 is installed with a side plate 21;

[0028] A moving mechanism, which is arranged in the U-shaped adjusting frame 5 and is used for driving the U-shaped moving frame 7 to move;

[0029] A sliding mechanism, which is arranged between the U-shaped moving frame 7 and the U-shaped adjusting frame 5 and is used for achieving the sliding pressure on the liquid crystal screen;

[0030] An elastic mechanism, which is connected with the sliding mechanism and is used for adjusting the pressure degree on the liquid crystal screen;

[0031] A mounting plate 19 connected with the elastic mechanism, a plurality of detection heads 2 are installed on the mounting plate 19 at intervals, and the detection heads 2 are used for pressing the surface of the liquid crystal screen;

[0032] A clamping mechanism, which is arranged on the base 1 and is used for clamping and positioning the liquid crystal screen.

[0033] The liquid crystal screen is clamped by the clamping mechanism, and the U-shaped moving frame 7 can be driven to move by the moving mechanism, so that the detection head 2 on the mounting plate 19 can gradually apply pressure to the liquid crystal screen and realize sliding pressure by cooperating with the sliding mechanism and the elastic mechanism, thereby simulating the pressure resistance when sliding pressure is applied on the surface of the liquid crystal screen.

[0034] As an embodiment of the utility model, the moving mechanism includes a threaded rod 6 rotatably arranged on the top of the U-shaped adjusting frame 5, the threaded rod 6 is in threaded connection with the U-shaped moving frame 7, and a motor 8 is installed on the U-shaped adjusting frame 5, and the driving end of the motor 8 is connected with the threaded rod 6.

[0035] When the liquid crystal screen is subjected to sliding pressure, the motor 8 needs to be started by an external control unit, the motor 8 drives the threaded rod 6 to rotate, the threaded rod 6 drives the U-shaped moving frame 7 to move along the limiting rod 9, so that the detection head 2 on the mounting plate 19 can slide on the surface of the liquid crystal screen.

[0036] As an embodiment of the utility model, the sliding mechanism includes limiting grooves 14 opened on the inner walls of the U-shaped moving frame 7, the limiting grooves 14 are in sliding connection with the movable frame 13, the movable frame 13 is provided with a movable rod 11, the U-shaped moving frame 7 is provided with movable grooves 1 in active connection with the movable rod 11 on the two sides, and the U-shaped adjusting frame 5 is provided with Z-shaped grooves 12 in sliding connection with the movable rod 11 on the two sides.

[0037] During the movement of the moving mechanism and the U-shaped moving frame 7 along the limiting rod 9, due to the cooperation of the Z-shaped grooves 12 and the movable rod 11, the movable frame 13 slides downward along the limiting grooves 14, during the sliding of the movable frame 13, the detection head 2 on the mounting plate 19 contacts the surface of the liquid crystal screen, then extrudes the elastic mechanism, so that the liquid crystal screen is elastically extruded by the detection head 2, thereby starting the pressure resistance detection of the liquid crystal screen, and during the sliding of the movable rod 11 along the inclined groove of the Z-shaped groove 12, the moving mechanism also drives the U-shaped moving frame 7 to move, so that the detection head 2 can gradually adjust the pressure intensity on the liquid crystal screen during the sliding, thereby enabling the detection head 2 to apply pressure to the liquid crystal screen with different sizes during the sliding, and when the movable rod 11 moves to the horizontal part of the Z-shaped groove 12, the detection head 2 can also slide on the surface of the liquid crystal screen with the same pressure, thereby simulating the pressure resistance when sliding pressure is applied on the surface of the liquid crystal screen, and the detection of the device is more comprehensive compared with the simple mechanical pressure detection at a single position.

[0038] As an embodiment of the utility model, the elastic mechanism comprises a fixed cylinder 15 connected with the movable frame 13, a sliding plate 16 is arranged in the fixed cylinder 15 and slides, the sliding plate 16 is connected with a slide rod 18, the slide rod 18 is connected with a mounting plate 19, and the fixed cylinder 15 is provided with a spring 17 connected with the sliding plate 16.

[0039] Under the cooperation of the sliding mechanism and the moving mechanism, the movable frame 13 moves downward, so that the detection head 2 on the mounting plate 19 contacts the liquid crystal screen, and along with the downward movement of the movable frame 13, the spring 17 is extruded by the sliding plate 16 on the top of the slide rod 18, and the detection head 2 is pressed on the surface of the liquid crystal screen by the elastic force of the spring 17.

[0040] In addition to the sliding pressure mode, the application can also drive the U-shaped adjusting frame 5 to descend by driving the first hydraulic rod 4, so that the detection head 2 on the mounting plate 19 moves vertically, so that the detection head 2 contacts the liquid crystal screen, and along with the descending of the U-shaped adjusting frame 5 driven by the first hydraulic rod 4, the spring 17 in the fixed cylinder 15 is continuously extruded by the sliding plate 16, so that the detection head 2 gradually increases the pressure on the single position of the liquid crystal screen, and realizes the fixed-point pressure detection on the single position of the liquid crystal screen.

[0041] As an embodiment of the utility model, the clamping mechanism comprises a side plate 21 installed on both sides of the base 1, the side plate 21 is provided with a second hydraulic rod 22, the second hydraulic rod 22 is connected with a clamping plate 23, and the clamping plate 23 is provided with a guide rod 24 slidably connected with the side plate 21.

[0042] When the liquid crystal screen is detected, in order to avoid the deviation of the liquid crystal screen in the process of pressing the liquid crystal screen, the clamping plate 23 is driven to move by the second hydraulic rod 22, so that the clamping plate 23 clamps the two ends of the liquid crystal screen, and then the liquid crystal screen is fixed.

[0043] In use, the liquid crystal screen is clamped by the clamping mechanism, and the U-shaped moving frame 7 can be driven to move by the moving mechanism, so that the detection head 2 on the mounting plate 19 can gradually apply pressure to the liquid crystal screen and realize sliding pressure by cooperating with the sliding mechanism and the elastic mechanism, and then the anti-pressure situation when sliding pressure is applied on the surface of the liquid crystal screen can be simulated, and compared with the simple mechanical pressure detection on the single position, the detection of the device is more comprehensive.

[0044] It is apparent for a person skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, the scope of the present application being defined by the claims appended hereto rather than by the above description, and all the changes which fall within the meaning and the scope of the equivalent elements of the claims are intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims to the figures in which the reference signs are used.

[0045] Furthermore, it should be understood that although the present specification is described in terms of embodiments, not every embodiment according to the present specification needs to exhibit each and every characteristic specified in the present specification. The specification can also be described in terms of a single preferred embodiment, it being understood that this single preferred embodiment can exhibit not every aspect or feature of the present specification. The specification can also be described in terms of a generic statement that the disclosure can include one, some, or all of a list of features. It is further understood that the specification is to be considered as a whole and not with reference to a single feature or design element alone.

Claims

1. A liquid crystal panel testing apparatus comprising a base, characterized in that, The base is provided with a support, the support is provided with a top plate, the top plate is provided with two first hydraulic rods which are symmetrically distributed, the first hydraulic rods are fixedly connected with a U-shaped adjusting frame, and the U-shaped adjusting frame is provided with a moving mechanism, a sliding mechanism, an elastic mechanism, a mounting plate and a clamping mechanism. Two limiting rods are mounted on the top of the U-shaped adjusting frame, and the limiting rods are slidably connected with a U-shaped moving frame. The moving mechanism is arranged in the U-shaped adjusting frame and used for driving the U-shaped moving frame to move. The sliding mechanism is arranged between the U-shaped moving frame and the U-shaped adjusting frame and used for achieving sliding pressure on the liquid crystal screen. The elastic mechanism is connected with the sliding mechanism and used for adjusting the pressure intensity on the liquid crystal screen. The mounting plate is connected with the elastic mechanism, and a plurality of detection heads are mounted on the mounting plate in a spaced manner and used for pressing the surface of the liquid crystal screen. The clamping mechanism is arranged on the base and used for clamping and positioning the liquid crystal screen.

2. A liquid crystal panel testing apparatus according to claim 1, wherein The moving mechanism comprises a threaded rod which is rotatably arranged on the top of the U-shaped adjusting frame, the threaded rod is threadedly connected with the U-shaped moving frame, and the U-shaped adjusting frame is provided with a motor, and a driving end of the motor is connected with the threaded rod.

3. A liquid crystal panel testing apparatus according to claim 2, wherein The sliding mechanism comprises limiting grooves which are formed in the inner walls of the U-shaped moving frame and slidably connected with a movable frame, the movable frame is provided with a movable rod, the two sides of the U-shaped moving frame are provided with movable grooves which are movably connected with the movable rod, and the two sides of the U-shaped adjusting frame are provided with Z-shaped grooves which are slidably connected with the movable rod.

4. A liquid crystal panel testing apparatus according to claim 3, wherein The elastic mechanism comprises a fixing cylinder which is connected with the movable frame, a sliding plate which is slidably arranged in the fixing cylinder, a sliding rod which is connected with the sliding plate, and a spring which is arranged in the fixing cylinder and connected with the sliding plate.

5. The liquid crystal panel testing apparatus according to claim 1, wherein The clamping mechanism comprises side plates which are mounted on the two sides of the base, the side plates are provided with second hydraulic rods, the second hydraulic rods are connected with clamping plates, and the clamping plates are provided with guide rods which are slidably connected with the side plates.

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