Large-screen liquid crystal display detection auxiliary device

Abstract

The utility model discloses an auxiliary detection device for a large-screen liquid crystal display. The auxiliary detection device comprises a test box and a roll-over stand mounted on the test box, two rollers in rolling fit with the test box are arranged on the outer side of the overturning frame, one roller is in sliding fit with the overturning frame, a spring is arranged at the matching position, two trusses in sliding fit with the overturning frame are arranged on the inner side of the overturning frame, a left screw rod and a right screw rod are arranged in the trusses, and clamping plates for clamping opposite angles of a display are connected to the left screw rod and the right screw rod in a sleeving manner; handles are arranged on the two sides of the turnover frame, an operator can manually adjust the turnover angle conveniently, the stability of the turnover frame in the moving process is ensured through the matched design of rollers and rolling grooves, and deviation of the display screen is avoided; wherein one roller is in sliding fit with the overturning frame and is provided with a spring, the gap between the roller and the rolling groove can be automatically adjusted, and the stability and adaptability of the device are further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to screen detection technical field, specifically a big screen liquid crystal display detection auxiliary device. BACKGROUND

[0002] With the rapid development of liquid crystal display (LCD) technology, large screen liquid crystal display is increasingly widely used in consumer electronics, industrial control, medical equipment and other fields. In order to ensure the quality and performance of liquid crystal display, it needs to be detected in many aspects in the production process, including display color, brightness uniformity, bad point detection and so on. However, the existing detection equipment has some limitations in the flow line operation, especially in the display screen turning and positioning.

[0003] On the traditional liquid crystal display production line, the display screen usually needs to be turned over in different processes to carry out multi-angle detection and assembly. For example, when detecting display color, the display surface of the display screen needs to be faced to the test equipment, and in the assembly process, the back of the display screen may need to be installed with parts. However, the existing turning device is often complex in structure, with a large turning range, which cannot be closely combined with the detection equipment, resulting in low detection efficiency and easy damage to the display screen during turning.

[0004] In addition, the existing turning device usually lacks precise positioning and clamping function, which is difficult to quickly and accurately position the display screen to the detection position in the flow line transmission process, which not only increases the operation difficulty, but also may lead to inaccurate detection results, affecting product quality. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a large screen liquid crystal display detection auxiliary device to solve the above problems existing in the prior art.

[0006] Technical scheme: a large screen liquid crystal display detection auxiliary device, comprising:

[0007] A test box and a turning frame installed on the test box;

[0008] The outer side of the turning frame is provided with two rollers in rolling cooperation with the test box, one of which is in sliding cooperation with the turning frame and the cooperation place is provided with a spring, and the inner side of the turning frame is provided with two trusses in sliding cooperation with the turning frame, the trusses are provided with left and right lead screws, and the left and right lead screws are provided with clamping plates clamping the opposite corners of the display;

[0009] The test box is provided with a rolling groove in rolling cooperation with the roller, the test box is provided with a through hole penetrating the rolling groove, the through hole and the rolling groove penetrating place are further provided with a groove, the test box is inserted with a sleeve at both ends of the through hole, one end of the sleeve is provided with a notch, and the notch is provided with a limiting rod.

[0010] In further embodiments, the two sides of the turnover frame are provided with handles; and the rolling groove is in U shape.

[0011] In further embodiments, the test box is provided with an optical sensor and a visual sensor.

[0012] In further embodiments, one of the two rollers is movably connected with the turnover frame, and the other roller is slidingly matched with the turnover frame; the spring is arranged in the turnover frame, one end of the spring is connected with the roller slidingly arranged in the turnover frame, and the other end of the spring is connected with the turnover frame; and the roller is arranged in the rolling groove.

[0013] In further embodiments, the truss is slidingly matched with the U-shaped hole of the turnover frame, and the two ends of the lead screw are located at the U-shaped hole.

[0014] In further embodiments, the left and right lead screws are gap matched with the truss, the clamping plate is engaged with the left and right lead screws, and the clamping plate is in L shape.

[0015] In further embodiments, the limiting rod and the sleeve are gap matched with the through hole, the limiting rod is movably connected with the notch of the sleeve, and the other end of the sleeve is provided with an adjusting rod.

[0016] Beneficial effects: the utility model discloses a large -scale screen liquid crystal display detection auxiliary device, the both sides of turnover frame are provided with handle, and the manual adjustment turnover angle of operator is convenient, and the cooperation design of roller and rolling groove ensures the stability of turnover frame in the moving process, avoids the deviation of display screen, one of the roller is slidingly matched with the turnover frame, and is equipped with spring, can automatically adjust the gap between roller and rolling groove, and further improves the stability and adaptability of device,

[0017] The design of truss and left and right lead screws realizes the adjustability of the clamping plate, can adapt to display screens of different sizes, and avoids damaging the display screen through uniform clamping force, the clamping plate is in L shape design, can better adhere to the edge of display screen, ensures the stability of clamping, the design of limiting rod and sleeve controls the rotating direction of sleeve through adjusting rod, realizes the accurate limitation of roller position, the design of recess is used for hiding limiting rod, makes the structure of device more compact, avoids the interference of limiting rod to operation, the introduction of optical sensor and visual sensor can real -time feedback the state of display screen, ensures the accuracy and high efficiency of detection process. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the perspective view of the utility model.

[0019] Figure 2 It is the turnover structure view of the utility model.

[0020] Figure 3It is the three-dimensional half-section schematic view of the utility model.

[0021] Figure 4 It is the half-section schematic view of the turnover structure of the utility model.

[0022] Figure 5 It is the front view of the utility model.

[0023] Figure 6 It is the schematic view of the turnover frame structure of the utility model.

[0024] Figure 7 It is the left view half-section schematic view of the utility model.

[0025] Figure 8 It is the schematic view of the limiting rod structure of the utility model.

[0026] The figure mark is: 1, test box;2, turnover frame;3, truss;4, clamping plate;12, rolling groove;13, recess;14, through hole;15, sleeve;16, limiting rod;21, roller;22, U-shaped hole;23, handle;24, spring;31, lead screw;100, display. Specific implementation

[0027] The utility model discloses a big screen LCD monitor detection auxiliary device, through the optimization design of turnover frame and roller, realizes small range, accurate turnover operation, the design of truss, left and right lead screw and L type clamping plate realizes the stable clamping of different size display screen, the cooperation of limiting rod, sleeve and sensor realizes the accurate positioning and real time monitoring of display screen, and the following through specific embodiment is to the specific description of scheme.

[0028] Referring to Figures 1-8 As shown in the figure, a big screen LCD monitor detection auxiliary device includes:

[0029] Test box 1, install the turnover frame 2 on test box 1, both sides of the turnover frame 2 are equipped with handle 23, the test box 1 is equipped with optical sensor and vision sensor.

[0030] The outer side of the turnover frame 2 is equipped with two rollers 21 that are rolling with test box 1, one roller 21 is slidingly matched with the turnover frame 2 and is equipped with spring 24 at the matching place, the inner side of the turnover frame 2 is equipped with two trusses 3 that are slidingly matched with the turnover frame 2, the truss 3 is equipped with left and right lead screw 31, and the left and right lead screw 31 is equipped with the clamping plate 4 that is diagonally clamped to the display 100;

[0031] Two rollers 21, one of which is movably connected with the turnover frame 2, and the other is slidingly matched with the turnover frame 2, the spring 24 is arranged in the turnover frame 2, one end of the spring 24 is connected with the roller 21 slidingly arranged in the turnover frame 2, and the other end is connected with the turnover frame 2; the roller 21 is arranged in the rolling groove 12.

[0032] The truss 3 is slidingly matched with the U-shaped hole 22 arranged on the turnover frame 2, and the two ends of the lead screw 31 are located at the U-shaped hole 22; the left and right lead screws 31 are gap matched with the truss 3, the clamping plate 4 is engaged with the left and right lead screws 31, and the clamping plate 4 is L-shaped.

[0033] The test box 1 is provided with a rolling groove 12 matched with the roller 21, the test box 1 is provided with a through hole 14 penetrating the rolling groove 12, the through hole 14 is further provided with a groove 13 at the penetration position of the rolling groove 12, and the test box 1 is inserted with a sleeve 15 at both ends of the through hole 14, one end of the sleeve 15 is provided with a notch, and the notch is provided with a limiting rod 16; the rolling groove 12 is U-shaped; the groove 13 is used for hiding the limiting rod 16 which is opened; the sleeve 15 limits the rotating direction of the limiting rod 16 under the action of the notch.

[0034] The limiting rod 16 and the sleeve 15 are gap matched with the through hole 14, the limiting rod 16 is movably connected with the notch of the sleeve 15, and the other end of the sleeve 15 is provided with an adjusting rod; the adjusting rod rotates the sleeve 15 to make the notch face the direction of the roller 21, so as to limit the position of the moving roller 21.

[0035] Working principle: first, the display screen is placed on the turnover frame 2, the opposite corners of the display screen are clamped by the L-shaped clamping plate 4 to ensure the stability of the display screen, the turnover frame 2 is in a horizontal position, the display surface of the display screen faces upward, and is ready for detection or assembly operation, the operator applies external force through the handles 23 on both sides of the turnover frame 2 to start the turnover process; the roller 21 on the outer side of the turnover frame 2 rolls in the U-shaped rolling groove 12 of the test box 1, so that the turnover frame 2 starts to rotate around the axis of the roller 21;

[0036] When the turnover frame 2 rotates to the target angle (for example, 180°), the operator stops applying external force, and the turnover frame 2 is automatically locked in the target position through the cooperation of the roller 21 and the rolling groove 12, so as to ensure that the display surface of the display screen faces the detection equipment of the test box 1, after the display surface of the display screen faces the test box 1, the optical sensor and the visual sensor start to work, and the display effect of the display screen is detected,

[0037] If assembly operation is needed, the back of the display screen faces upward, which is convenient for the operator to install parts,

[0038] The limiting rod 16 and the sleeve 15 are inserted into the through hole 14 of the test box 1, the notch of the sleeve 15 is not directed to the direction of the roller 21, the limiting rod 16 is in an unlocked state, and the roller 21 can freely roll in the rolling groove 12,

[0039] When the turnover frame 2 starts to turn over, the roller 21 rolls in the rolling groove 12 and drives the turnover frame 2 to rotate,

[0040] When the turnover frame 2 reaches the target position, the limiting rod 16 is in contact with the roller 21 through the notch of the sleeve 15, and the further movement of the roller 21 is limited, the contact between the limiting rod 16 and the roller 21 generates a friction force, which prevents the roller 21 from continuing to roll, thereby locking the position of the turnover frame 2, and after the limiting rod 16 completely locks the roller 21, the turnover frame 2 is fixed at the target position, and the display surface of the display screen faces the test box 1,

[0041] When it is necessary to readjust the position of the turnover frame 2, the operator rotates the sleeve 15 through the adjusting rod, so that the notch is away from the direction of the roller 21; the limiting rod 16 is away from the contact with the roller 21, the roller 21 returns to the free rolling state, and the turnover frame 2 can continue to move.

[0042] The preferred embodiments of the utility model are described in detail in combination with the drawings, but the utility model is not limited to the specific details in the above embodiments, and various equivalent transformations can be made to the technical scheme of the utility model within the technical concept of the utility model, and these equivalent transformations all belong to the protection scope of the utility model.

Claims

1. A large screen liquid crystal display inspection aid comprising: A test box and a turnover frame installed on the test box; The turnover frame is characterized in that the outer side of the turnover frame is provided with two rollers in rolling cooperation with the test box, one of the rollers is in sliding cooperation with the turnover frame and is provided with a spring at the cooperation position, the inner side of the turnover frame is provided with two trusses in sliding cooperation with the turnover frame, the trusses are provided with left and right lead screws, the lead screws are provided with clamping plates clamping opposite corners of a display. The test box is provided with a rolling groove in rolling cooperation with the rollers, the test box is provided with a through hole penetrating the rolling groove, the through hole is further provided with a groove at the penetrating position of the rolling groove, the test box is provided with a sleeve inserted into both ends of the through hole, one end of the sleeve is provided with a notch, and the notch is provided with a limiting rod.

2. A large screen liquid crystal display detection aid according to claim 1, wherein: Both sides of the turnover frame are provided with handles.

3. The auxiliary device for testing a large-screen liquid crystal display according to claim 1, characterized in that: The rolling groove is in U shape.

4. The apparatus of claim 1, wherein: The test box is provided with an optical sensor and a visual sensor.

5. The apparatus of claim 1, wherein: the apparatus is a large screen liquid crystal display detection aid. One of the two rollers is movably connected with the turnover frame, and the other roller is in sliding cooperation with the turnover frame, the spring is arranged in the turnover frame, one end of the spring is connected with the roller arranged in the turnover frame in a sliding mode and the other end of the spring is connected with the turnover frame, and the roller is arranged in the rolling groove.

6. The apparatus of claim 1, wherein: The truss is in sliding cooperation with a U-shaped hole of the turnover frame, and both ends of the lead screw are located at the U-shaped hole.

7. The apparatus of claim 1, wherein: the apparatus is a large screen liquid crystal display detection aid. The left and right lead screws are in clearance cooperation with the truss, the clamping plates are in engagement with the left and right lead screws, and the clamping plates are in L shape. The limiting rod and the sleeve are in clearance cooperation with the through hole, the limiting rod is movably connected with the notch of the sleeve, and the other end of the sleeve is provided with an adjusting rod.

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