Mechanism for correcting position of liquid crystal display glass
By combining negative pressure adsorption and linear guide rails with a measuring mechanism to correct the position of the liquid crystal display glass, the risk of breakage caused by clamp fixation is eliminated, achieving high-precision assembly results.
Patent Information
- Application Number
- CN202520120069.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2035-01-20
AI Technical Summary
The small force-bearing area of the clamping blocks during the assembly process of existing LCD display glass leads to positional deviations, increasing the risk of breakage and affecting assembly accuracy and quality.
The liquid crystal display glass is fixed by a combination of negative pressure adsorption and linear guide rails. Position correction is achieved by moving the adsorption plate and slider. Precise measurement and adjustment are performed by combining industrial cameras and laser emitters.
It effectively disperses the stress of the LCD glass, reduces the risk of breakage, improves assembly accuracy and quality, and ensures precise alignment between the LCD glass and the backlight.
Smart Images
Figure CN223550194U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of liquid crystal display glass production equipment, and in particular to a mechanism for correcting the position of liquid crystal display glass. Background Technology
[0002] With the widespread application of liquid crystal display (LCD) technology, the positional accuracy of the liquid crystal display glass, as a core component, plays a decisive role in the display effect. In the production process of liquid crystal display glass, it needs to be assembled with a backlight to display the required pattern. During the assembly process, the positional deviation of the liquid crystal display glass is easily caused by various factors, so the position of the liquid crystal display glass needs to be corrected to ensure the accuracy and quality of the assembled product.
[0003] In existing LCD glass assembly processes, the LCD glass needs to be fixed with clamps to prevent a decrease in installation accuracy due to positional deviations of the LCD glass during assembly with the backlight. However, when fixing the LCD glass with clamps, the small force-bearing area between the clamps and the LCD glass can easily lead to stress concentration on the LCD glass, increasing the risk of breakage and thus increasing the production defect rate. Therefore, a mechanism for correcting the position of the LCD glass is proposed to solve the above problems. Utility Model Content
[0004] To overcome the above deficiencies, this utility model provides a mechanism for correcting the position of liquid crystal display glass, aiming to improve the problem in the prior art that "the small force-bearing area of the clamping block and the liquid crystal display glass increases the risk of liquid crystal display glass breakage".
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a mechanism for correcting the position of a liquid crystal display glass, comprising a base, a driving mechanism at the top of the base, an adsorption plate above the base, an adsorption mechanism on the left side of the adsorption plate, the adsorption mechanism comprising a suction pipe connector and a suction port, the suction pipe connector being fixedly installed on the left side of the adsorption plate, an adsorption groove being formed at the top of the adsorption plate, the suction port being formed at the bottom of the inner wall of the adsorption groove, a channel being formed inside the adsorption plate, and a measuring mechanism being formed at the top of the base.
[0006] As a further description of the above technical solution:
[0007] The driving mechanism includes a linear guide rail, and a slider is fitted on the top of the linear guide rail. The top of the slider is fixedly connected to the bottom of the adsorption plate.
[0008] As a further description of the above technical solution:
[0009] The inside of the channel is connected to the inside of the adsorption tank through an air intake.
[0010] As a further description of the above technical solution:
[0011] The measuring mechanism includes a support frame, which is fixedly connected to the top of the base, and a fixed column is fixedly connected to one end of the support frame away from the base.
[0012] As a further description of the above technical solution:
[0013] The measuring mechanism also includes an industrial camera housing, which is fixedly connected to the bottom of the fixed column.
[0014] As a further description of the above technical solution:
[0015] The measuring mechanism also includes a mounting bracket and a laser emitter housing. The mounting bracket is fixedly connected to the left and right sides of the fixed column and is fixedly connected to the laser emitter housing by fastening bolts.
[0016] As a further description of the above technical solution:
[0017] The mounting bracket has mounting holes on its surface, and the fastening bolts pass through the interior of the mounting holes.
[0018] As a further description of the above technical solution:
[0019] A limiting plate is fixedly connected to the top of the adsorption plate, and the limiting plate is L-shaped.
[0020] This utility model has the following beneficial effects:
[0021] 1. In this utility model, the liquid crystal display glass is placed above the adsorption plate at a corresponding position, and then an external suction fan is connected to the air extraction pipe connector through a flexible hose. The suction fan operates in the adsorption tank to generate negative pressure, so that the liquid crystal display glass is stably fixed above the adsorption plate. Compared with the rigid fixation of the clamping block, the liquid crystal display glass is fixed by negative pressure adsorption. The force-bearing area of the liquid crystal display glass is larger, which can better disperse the stress concentration phenomenon on the liquid crystal display glass, reduce the risk of the liquid crystal display glass breaking, and improve the protection effect.
[0022] 2. In this utility model, the linear guide rail and the slider work together. The slider drives the adsorption plate to move linearly along the linear guide rail according to the instruction. The movement of the adsorption plate changes the position of the liquid crystal display glass, thereby correcting the position of the liquid crystal display glass and ensuring the accuracy of the assembly of the liquid crystal display glass and the backlight. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;
[0024] Figure 2 This utility model Figure 1 An enlarged 3D structural diagram at point A in the middle;
[0025] Figure 3 This is a three-dimensional cross-sectional view of the adsorption mechanism in this utility model.
[0026] Legend:
[0027] 1. Base; 2. Linear guide rail; 3. Slider; 4. Adsorption plate; 5. Support frame; 6. Fixing column; 7. Industrial camera housing; 8. Mounting bracket; 9. Laser emitter housing; 10. Fastening bolt; 11. Mounting hole; 12. Adsorption tank; 13. Air extraction pipe connector; 14. Channel; 15. Air intake port; 16. Limiting plate. Detailed Implementation
[0028] 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.
[0029] Reference Figure 1 The present invention provides an embodiment of a mechanism for correcting the position of a liquid crystal display glass, comprising a base 1, a driving mechanism on the top of the base 1, an adsorption plate 4 above the base 1, and an adsorption mechanism on the left side of the adsorption plate 4.
[0030] Reference Figure 1 - Figure 3 The adsorption mechanism includes an air extraction pipe connector 13 and an air intake port 15. The air extraction pipe connector 13 is fixedly installed on the left side of the adsorption plate 4. The function of the air extraction pipe connector 13 is to connect an external air extraction device to achieve negative pressure adsorption and fixation of the display glass. The top of the adsorption plate 4 is provided with an adsorption groove 12 with a circular cross-section. The air intake port 15 is located at the bottom of the inner wall of the adsorption groove 12. The adsorption plate 4 has multiple channels 14 inside. The multiple channels 14 are arranged in an interlaced manner. Some channels 14 extend along the x-axis direction, and other channels 14 extend along the y-axis direction. The inside of the channels 14 is connected to the inside of the adsorption groove 12 through the air intake port 15.
[0031] Reference Figure 1 , Figure 2The driving mechanism includes a linear guide rail 2, with a slider 3 fitted on the top of the linear guide rail 2. The top of the slider 3 is fixedly connected to the bottom of the adsorption plate 4. The linear guide rail 2 drives the slider 3 to move, providing precise linear motion guidance for the slider 3. This ensures that the adsorption plate 4 can move smoothly along the predetermined linear direction, guaranteeing the accuracy and stability of the movement during the position correction of the liquid crystal display glass. As is the prior art, a limiting plate 16 is fixedly connected to the top of the adsorption plate 4. The limiting plate 16 is L-shaped and serves to limit the movement, preventing the glass from displacing beyond the expected range during adsorption and position correction, thus ensuring operational safety and the accuracy of position correction.
[0032] Reference Figure 1 , Figure 2 The base 1 has a measuring mechanism on its top. The measuring mechanism includes a support frame 5, which is fixedly connected to the top of the base 1. A fixing column 6 is fixedly connected to the end of the support frame 5 away from the base 1. The measuring mechanism also includes an industrial camera housing 7. The camera is installed in a suitable position and can clearly capture images of the liquid crystal display glass so that the deviation between the actual position and the standard position of the glass can be determined through image analysis. The industrial camera housing 7 is fixedly connected to the bottom of the fixing column 6. The measuring mechanism also includes a mounting frame 8 and a laser emitter housing 9. The laser emitter housing 9 can emit a laser beam to measure the edge position of the glass, which helps to more accurately determine the position of the glass and provides a benchmark for subsequent correction.
[0033] Reference Figure 2 The mounting bracket 8 is fixedly connected to the left and right sides of the fixing column 6. The mounting bracket 8 is fixedly connected to the laser emitter housing 9 by fastening bolts 10. The surface of the mounting bracket 8 is provided with mounting holes 11. The number of mounting holes 11 is set to multiple. The multiple mounting holes 11 are arranged in a straight line at equal intervals on the surface of the mounting bracket 8. The fastening bolts 10 pass through the inside of the mounting holes 11. By installing the fastening bolts 10 inside the mounting holes 11 at different positions, the laser emitter housing 9 can be fixed at different positions above the display glass to adapt to the position correction work of display glass of different sizes.
[0034] Working principle: In use, place the LCD glass on top of the adsorption plate 4 and align it with the position of the LCD glass using the limiting plate 16. Then connect the external air suction fan interface through the hose and the air extraction pipe connector 13. Turn on the air suction fan, and the air suction fan will create negative pressure inside the channel 14. This will reduce the air pressure inside the adsorption tank 12 through the air intake 15, thereby creating an air pressure difference between the top and bottom of the LCD glass. In this way, the LCD glass is pressed tightly against the adsorption plate 4 by atmospheric pressure, thus fixing the LCD glass above the adsorption plate 4 and ensuring that the LCD glass will not easily shift during subsequent operations.
[0035] When the measuring mechanism starts working, the industrial camera, through the industrial camera housing 7, is positioned appropriately to take pictures of the liquid crystal display glass adsorbed on the adsorption plate 4, acquiring feature images such as the pre-marked glass edge contour and marker points. At the same time, the laser emitter emits a laser beam through the laser emitter housing 9 to measure the relevant dimensions and key positions of the glass. These measurement data are transmitted to the connected control system. Based on the calculated deviation, the control system sends control commands to the drive mechanism. The linear guide rail 2 and the slider 3 in the drive mechanism work together. The slider 3 drives the adsorption plate 4 to move linearly along the linear guide rail 2 according to the command. By moving the adsorption plate 4, the position of the liquid crystal display glass is changed, thereby correcting the position of the liquid crystal display glass.
[0036] 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 mechanism for correcting the position of a liquid crystal display glass, comprising a base (1), characterized in that: A driving mechanism is provided on the top of the base (1), an adsorption plate (4) is provided above the base (1), an adsorption mechanism is provided on the left side of the adsorption plate (4), the adsorption mechanism includes an air extraction pipe connector (13) and an air intake (15), the air extraction pipe connector (13) is fixedly installed on the left side of the adsorption plate (4), an adsorption groove (12) is provided on the top of the adsorption plate (4), the air intake (15) is provided at the bottom of the inner wall of the adsorption groove (12), a channel (14) is provided inside the adsorption plate (4), and a measuring mechanism is provided on the top of the base (1).
2. The mechanism for correcting the position of a liquid crystal display glass according to claim 1, characterized in that: The driving mechanism includes a linear guide rail (2), and a slider (3) is adapted to be installed on the top of the linear guide rail (2). The top of the slider (3) is fixedly connected to the bottom of the adsorption plate (4).
3. The mechanism for correcting the position of a liquid crystal display glass according to claim 1, characterized in that: The inside of the channel (14) is connected to the inside of the adsorption tank (12) through the air intake (15).
4. The mechanism for correcting the position of a liquid crystal display glass according to claim 1, characterized in that: The measuring mechanism includes a support frame (5), which is fixedly connected to the top of the base (1), and a fixed column (6) is fixedly connected to one end of the support frame (5) away from the base (1).
5. The mechanism for correcting the position of a liquid crystal display glass according to claim 4, characterized in that: The measuring mechanism also includes an industrial camera housing (7), which is fixedly connected to the bottom of the fixed column (6).
6. The mechanism for correcting the position of a liquid crystal display glass according to claim 5, characterized in that: The measuring mechanism also includes a mounting bracket (8) and a laser emitter housing (9). The mounting bracket (8) is fixedly connected to the left and right sides of the fixed column (6). The mounting bracket (8) is fixedly connected to the laser emitter housing (9) by fastening bolts (10).
7. A mechanism for correcting the position of a liquid crystal display glass according to claim 6, characterized in that: The mounting bracket (8) has mounting holes (11) on its surface, and the fastening bolts (10) pass through the interior of the mounting holes (11).
8. The mechanism for correcting the position of a liquid crystal display glass according to claim 1, characterized in that: A limiting plate (16) is fixedly connected to the top of the adsorption plate (4), and the limiting plate (16) is L-shaped.