Glass substrate thickness detection fixing seat for liquid crystal display production

Abstract

The utility model relates to the field of liquid crystal display production discloses a glass substrate thickness detection fixed base for liquid crystal display production, including support frame, the inner wall hinged link A of support frame, the extension end hinged bottom plate A of link A, the outer wall fixed connection of support frame has the gas cylinder, the extension end fixed connection in the top of bottom plate A of gas cylinder, the inner wall of support frame is provided with fixed mechanism, the top of bottom plate A is provided with limit mechanism, the limit mechanism includes support sliding block, the outer wall sliding connection in the outer wall of bottom plate A of support sliding block, the inner wall fixed connection of support sliding block has inner link rod. In the utility model, through the cooperation of cylinder, link B, upper sliding block, clamping plate etc. part, when cylinder drives bottom plate A to move, through link B transmission makes upper sliding block drive clamping plate to move inwards, realizes the clamping fixation of liquid crystal display horizontal direction, prevents its horizontal displacement.

Description

Technical Field

[0001] This utility model relates to the field of liquid crystal display manufacturing, and in particular to a glass substrate thickness detection fixture for liquid crystal display manufacturing. Background Technology

[0002] The glass substrate thickness measuring fixture is an auxiliary tooling device used in the production of LCD displays. It is mainly used to stably position and fix glass substrates of different specifications during the glass substrate thickness measuring process, so as to avoid deviations in the test data caused by displacement, shaking or uneven force on the glass substrate during the test. At the same time, it provides a stable test benchmark for the thickness measuring instrument, ensuring the smooth operation of the test. It is one of the key auxiliary devices to ensure the quality and accuracy of glass substrate testing in the LCD display production process.

[0003] When using the existing glass substrate thickness measuring fixture, the operator first needs to manually adjust the position of the limit block on the fixture according to the size of the glass substrate to be tested. After loosening the fastening bolts on both sides of the block, the block is pushed to move along the slide rail on the fixture table to the appropriate position, and then the bolts are tightened again to complete the fixing of the limit block.

[0004] In the use of existing technology, when manually turning the screw handle to drive the clamping plate to clamp the glass substrate, the clamping force is entirely controlled by the operator's feel. If the clamping force is too small, the glass substrate is prone to slight displacement during the inspection process. If the clamping force is too large, stress deformation will occur at the edge of the glass substrate, affecting the accuracy of the inspection data. Therefore, in response to the above problems, a glass substrate thickness detection fixture for LCD production has been introduced. Summary of the Invention

[0005] To overcome the above shortcomings, this utility model provides a glass substrate thickness detection fixture for LCD screen production. It aims to solve the problems in the prior art, such as the cumbersome steps of manually adjusting the limit block, the dependence of the limit accuracy on human experience and the poor consistency of glass substrate placement, the easy displacement or stress deformation of the glass substrate when manually controlling the clamping force of the clamping plate, and the uneven pressure distribution and easy damage to the glass substrate when manually pressing down the pressure rod.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a glass substrate thickness detection fixing seat for liquid crystal display production, comprising a support frame, a connecting rod A hinged to the inner wall of the support frame, a base plate A hinged to the extension end of the connecting rod A, a cylinder fixedly connected to the outer wall of the support frame, the extension end of the cylinder fixedly connected to the top of the base plate A, a fixing mechanism provided on the inner wall of the support frame, and a limit mechanism provided on the top of the base plate A; The limiting mechanism includes a support slider, the outer wall of which is slidably connected to the outer wall of the base plate A. An inner connecting rod is fixedly connected to the inner wall of the support slider. A suction cup is fixedly connected to the top of the inner connecting rod. An inner piston is slidably connected to the inner wall of the inner connecting rod. An inner connecting rod is fixedly connected to the bottom of the inner piston. The extension end of the inner connecting rod is fixedly connected to the base plate B. A handle is fixedly connected to the outer wall of the base plate B.

[0007] As a further description of the above technical solution: the inner wall of the base plate A is provided with a through groove, and the extension end of the inner connecting rod extends downward through the base plate A.

[0008] As a further description of the above technical solution: the number of suction cups is four, and the four suction cups are symmetrically arranged at equal intervals on the inner wall of the support slider.

[0009] As a further description of the above technical solution: the total number of the limiting mechanisms is five sets, and the five sets of limiting mechanisms are slidably connected to the inner wall of the base plate A.

[0010] As a further description of the above technical solution: the fixing mechanism includes an upper slider, the outer wall of which is slidably connected to the inner wall of the support frame, a connecting plate is fixedly connected to the outer wall of the upper slider, and a clamping plate is fixedly connected to the bottom of the outer wall of the connecting plate. As a further description of the above technical solution: the inner wall of the support frame is hinged with a connecting rod B, and the extension end of the connecting rod B is hinged with a lower slider.

[0011] As a further description of the above technical solution: the outer wall of the lower slider is slidably connected to a groove opened at the top of the base plate A.

[0012] As a further description of the above technical solution: the number of fixing mechanisms is two sets, and the two sets of fixing mechanisms are symmetrically arranged at equal intervals on the inner wall of the support frame.

[0013] This utility model has the following beneficial effects: 1. In this utility model, through the cooperation of components such as cylinder, connecting rod B, upper slider, and clamping plate, when the cylinder drives the base plate A to move, the upper slider drives the clamping plate to move inward through the transmission of connecting rod B, thereby achieving horizontal clamping and fixing of the liquid crystal display screen and preventing its horizontal displacement.

[0014] 2. In this utility model, with the cooperation of components such as the support slider, suction cup, inner piston, inner connecting rod, and handle, the support slider can slide along the base plate A to adjust its position. Pulling the handle drives the inner piston to move through the inner connecting rod, causing the suction cup to form a negative pressure, thereby achieving vertical adsorption and fixation of LCD screens of different specifications, ensuring stable adsorption. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a glass substrate thickness detection fixture for liquid crystal display production proposed in this utility model; Figure 2 This is a schematic diagram of the bottom structure of a glass substrate thickness detection fixture for liquid crystal display production proposed in this utility model. Figure 3 This is a schematic diagram of a limiting mechanism for a glass substrate thickness detection fixing seat for liquid crystal display production, as proposed in this utility model.

[0016] Legend: 1. Support frame; 2. Connecting rod A; 3. Base plate A; 4. Cylinder; 5. Fixing mechanism; 511. Upper slider; 512. Connecting plate; 513. Clamping plate; 514. Connecting rod B; 515. Lower slider; 6. Limiting mechanism; 611. Support slider; 612. Inner connecting rod; 613. Suction cup; 614. Inner piston; 615. Inner connecting rod; 616. Base plate B; 617. Handle. Detailed Implementation

[0017] 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.

[0018] Reference Figures 1-3This utility model provides an embodiment of a glass substrate thickness detection fixture for liquid crystal display production, comprising a support frame 1. The support frame 1 provides a support carrier for the entire fixture and is used to install a connecting rod A2, a cylinder 4, and a fixing mechanism 5. The connecting rod A2 is hinged to the inner wall of the support frame 1, connecting the support frame 1 and the base plate A3. The connecting rod A2 can move with the base plate A3 and adjust its angle to maintain the stability of the base plate A3. The extension end of the connecting rod A2 is hinged to the base plate A3. The base plate A3 is used to place the liquid crystal display to be tested and also provides an installation position for the limiting mechanism 6. The cylinder 4 is fixedly connected to the outer wall of the support frame 1. The cylinder 4 provides power for the up and down movement of the base plate A3 and drives the base plate A3 to move through its own extension and retraction. The extension end of the cylinder 4 is fixedly connected to the base plate A3. At the top of the base plate A3, a fixing mechanism 5 is provided on the inner wall of the support frame 1. The fixing mechanism 5 is used to clamp the LCD screen from both sides to prevent the LCD screen from moving horizontally during testing. A limiting mechanism 6 is provided at the top of the base plate A3. The limiting mechanism 6 is used to adsorb and fix the LCD screen from the bottom and can be adapted to different specifications of LCD screens. The limiting mechanism 6 includes a support slider 611, which can slide on the base plate A3 to adjust the position of the limiting mechanism 6 on the base plate A3. The outer wall of the support slider 611 is slidably connected to the outer wall of the base plate A3. An inner connecting rod 612 is fixedly connected to the inner wall of the support slider 611. The inner connecting rod 612 is used to install the suction cup 613 and at the same time provides sliding space for the inner piston 614. The top of the inner connecting rod 612 is fixedly connected to the inner wall of the base plate A3. A suction cup 613 is fixedly connected to the bottom of the LCD screen, and suction cup 613 is used to contact the bottom of the LCD screen to achieve adsorption and fixation through negative pressure. An inner piston 614 is slidably connected to the inner wall of the inner connecting rod 612. The inner piston 614 slides within the inner connecting rod 612 to change the air pressure inside the suction cup 613, creating or releasing negative pressure. An inner connecting rod 615 is fixedly connected to the bottom of the inner piston 614. The inner connecting rod 615 is used to connect the inner piston 614 to the base plate B616, and transmits the force of the base plate B616 to the inner piston 614. The extension end of the inner connecting rod 615 is fixedly connected to the base plate B616. The base plate B616 is used to install the handle 617 and also bears the force of the inner connecting rod 615. The handle 617 is fixedly connected to the outer wall of the base plate B616. To facilitate operator application of force, the base plate B616, inner connecting rod 615, and inner piston 614 are moved. A through groove is provided on the inner wall of the base plate A3, providing a channel for the inner connecting rod 615 to move up and down through the base plate A3. The extended end of the inner connecting rod 615 extends downwards through the base plate A3. Four suction cups 613 are symmetrically and equidistantly arranged on the inner wall of the support slider 611. These four symmetrically spaced suction cups ensure even force distribution on the bottom of the LCD screen, improving adsorption stability. Five sets of limiting mechanisms 6 are slidably connected to the inner wall of the base plate A3, adsorbing the LCD screen from different positions to further enhance the fixing effect.

[0019] Reference Figures 1-3 The fixing mechanism 5 includes an upper slider 511, which can slide on the inner wall of the support frame 1, driving the connecting plate 512 and the clamping plate 513 to move. The outer wall of the upper slider 511 is slidably connected to the inner wall of the support frame 1. The connecting plate 512 is fixedly connected to the outer wall of the upper slider 511. The connecting plate 512 is used to connect the upper slider 511 and the clamping plate 513, transmitting the sliding force of the upper slider 511 to the clamping plate 513. The clamping plate 513 is fixedly connected to the bottom of the outer wall of the connecting plate 512. The clamping plate 513 directly contacts the side of the liquid crystal display screen, fixing the liquid crystal display screen through clamping action. The inner wall of the support frame 1 is hinged with a connecting plate 512. Rod B514 connects the support frame 1 and the lower slider 515, converting the movement of the lower slider 515 into the sliding of the upper slider 511. The extension end of the connecting rod B514 is hinged to the lower slider 515, which can slide in the top groove of the base plate A3, driving the connecting rod B514 to adjust the angle. The outer wall of the lower slider 515 is slidably connected in the groove opened at the top of the base plate A3. There are two sets of fixing mechanisms 5, which are equidistantly and symmetrically arranged on the inner wall of the support frame 1. The two sets of symmetrical fixing mechanisms 5 can clamp synchronously from both sides of the LCD screen to prevent the LCD screen from shifting under force.

[0020] Working principle: During operation, the extended end of cylinder 4 will drive the base plate A3, which is fixedly connected to it, to move downward. Since the base plate A3 is hinged to the connecting rod A2, and the other end of the connecting rod A2 is hinged to the inner wall of the support frame 1, the connecting rod A2 will rotate at an angle during the downward movement of the base plate A3, providing stable support for the movement of the base plate A3. Simultaneously, when the base plate A3 moves downward, it will synchronously drive the lower slider 515, which is slidably connected in the top groove, to move downward. The lower slider 515 is hinged to the connecting rod B514, and the other end of the connecting rod B514 is hinged to the inner wall of the support frame 1. The movement of the lower slider 515 will cause the connecting rod B514 to change angle, thereby pushing the upper slider 511, which is associated with the connecting rod B514 and slidably connected to the inner wall of the support frame 1, to slide inward along the inner wall of the support frame 1. When the upper slider 511 slides, it will drive the connecting plate 512, which is fixedly connected to its outer wall, to move inward synchronously. The connecting plate 512 will then drive the clamping plate 513, which is fixedly connected at the bottom, to move inward toward the liquid crystal display screen. Finally, through the joint action of the clamping plates 513 of the two sets of symmetrically arranged fixing mechanisms 5, the liquid crystal display screen is clamped and fixed in the horizontal direction, thus preventing the liquid crystal display screen from shifting horizontally during the testing process. Simultaneously, the five sets of limiting mechanisms 6 set on the top of the base plate A3 further limit and fix the LCD screen. Specifically, the LCD screen is placed on top of the suction cup 613 of the five sets of limiting mechanisms 6. Then, the operator pulls down the handle 617, which moves the base plate B616 fixedly connected to it downward. The base plate B616 then moves the inner connecting rod 615 fixedly connected at the top downward along the through groove on the inner wall of the base plate A3. The inner connecting rod 615 pulls upward, causing the inner piston 614 fixedly connected at the top to slide upward along the inner wall of the inner connecting rod 612. The inner piston 614 slides through... During the process, a negative pressure state is formed inside the suction cup 613, thereby using the negative pressure suction to tightly adhere the LCD screen to the suction cup 613, achieving vertical adsorption and fixation of the LCD screen; and since the support slider 611 is slidably connected to the outer wall of the base plate A3, the operator can push the support slider 611 to slide along the outer wall of the base plate A3 according to the specific size of the LCD screen to be tested, and adjust the distance between the five sets of limiting mechanisms 6, so that the suction cup 613 can be adapted to LCD screens of different sizes, ensuring that stable adsorption and fixation can be achieved for LCD screens of different specifications.

[0021] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A glass substrate thickness detection fixture for liquid crystal display production, comprising a support frame (1), characterized in that: The inner wall of the support frame (1) is hinged with a connecting rod A (2), the extension end of the connecting rod A (2) is hinged with a base plate A (3), the outer wall of the support frame (1) is fixedly connected with a cylinder (4), the extension end of the cylinder (4) is fixedly connected to the top of the base plate A (3), the inner wall of the support frame (1) is provided with a fixing mechanism (5), and the top of the base plate A (3) is provided with a limit mechanism (6). The limiting mechanism (6) includes a support slider (611), the outer wall of which is slidably connected to the outer wall of the base plate A (3), the inner wall of which is fixedly connected to an inner connecting rod (612), the top of which is fixedly connected to a suction cup (613), the inner wall of which is slidably connected to an inner piston (614), the bottom of which is fixedly connected to an inner connecting rod (615), the extension end of which is fixedly connected to a base plate B (616), and the outer wall of which is fixedly connected to a handle (617).

2. The glass substrate thickness detection fixture for liquid crystal display production according to claim 1, characterized in that: The inner wall of the base plate A (3) is provided with a through groove, and the extension end of the inner connecting rod (615) extends downward through the base plate A (3).

3. The glass substrate thickness detection fixture for liquid crystal display production according to claim 1, characterized in that: The number of suction cups (613) is four, and the four suction cups (613) are symmetrically arranged at equal intervals on the inner wall of the support slider (611).

4. The glass substrate thickness detection fixture for liquid crystal display production according to claim 1, characterized in that: The total number of the limiting mechanism (6) is five sets, and the five sets of the limiting mechanism (6) are slidably connected to the inner wall of the base plate A (3).

5. The glass substrate thickness detection fixture for liquid crystal display production according to claim 1, characterized in that: The fixing mechanism (5) includes an upper slider (511), the outer wall of which is slidably connected to the inner wall of the support frame (1), a connecting plate (512) is fixedly connected to the outer wall of the upper slider (511), and a clamping plate (513) is fixedly connected to the bottom of the outer wall of the connecting plate (512).

6. The glass substrate thickness detection fixture for liquid crystal display production according to claim 1, characterized in that: The inner wall of the support frame (1) is hinged with a connecting rod B (514), and the extension end of the connecting rod B (514) is hinged with a sliding block (515).

7. The glass substrate thickness detection fixture for liquid crystal display production according to claim 6, characterized in that: The outer wall of the lower slider (515) is slidably connected to the groove opened at the top of the base plate A (3).

8. The glass substrate thickness detection fixture for liquid crystal display production according to claim 1, characterized in that: The number of fixing mechanisms (5) is two sets, and the two sets of fixing mechanisms (5) are symmetrically arranged at equal intervals on the inner wall of the support frame (1).

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