Multi-station liquid crystal display screen glass substrate automatic alignment cutting device

Abstract

The utility model discloses a multi-station liquid crystal display screen glass substrate automatic alignment cutting device, and relates to the technical field of liquid crystal display screen production. The laser cutting device comprises a cutting table, a displacement assembly is arranged on the upper side of the cutting table, a rotating assembly is arranged at the moving end of the displacement assembly, and an elastic extrusion assembly and a laser gun are arranged at the rotating end of the rotating assembly. The elastic extrusion assembly and the laser gun are driven to move on the glass substrate through the displacement assembly and the rotating assembly, the moving laser gun cuts the glass substrate at the moment, and the elastic extrusion assembly extrudes the two sides of the cutting position of the glass substrate. The cutting position of the glass substrate is not easy to vibrate under the extrusion of the elastic extrusion assembly, and the phenomenon that the adsorption force of the adjustable adsorption assembly is attenuated due to the vibration of the glass substrate is effectively avoided, so that the cutting path of the glass substrate is not easy to deviate, and the edge of the glass substrate is not easy to crack.

Description

An automatic alignment and cutting device for multi-station liquid crystal display glass substrates Technical Field

[0001] This utility model belongs to the field of liquid crystal display manufacturing technology, and specifically relates to an automatic alignment and cutting device for multi-station liquid crystal display glass substrates. Background Technology

[0002] The multi-station automatic alignment and cutting device for LCD glass substrates is a high-efficiency and precision equipment used in LCD manufacturing. Through a multi-station parallel design, it achieves continuous loading and unloading of glass substrates, high-precision visual alignment, and integrated laser / mechanical cutting. Its core consists of a multi-axis motion platform, a vision recognition system, an adaptive vacuum adsorption fixture, and a dynamic compensation cutting module. It can automatically calibrate the substrate position and complete non-destructive cutting according to a preset path.

[0003] Existing devices typically use fixed vacuum chuck arrays to fix glass substrates. The uniformity of the adsorption force depends heavily on the perfect adhesion between the glass substrate and the chuck surface. However, during laser cutting, the chuck below the cutting path may experience sealing interface failure due to local deformation of the glass substrate or vibration impact, resulting in a significant reduction in the vacuum level within the adsorption holes. This leads to a decrease in the adsorption force at a single point, which disrupts the overall force balance of the substrate and induces local warping or displacement on the non-cutting side. Ultimately, this results in process defects such as cutting path deviation and edge chipping, severely affecting processing accuracy and product yield. Summary of the Invention

[0004] To address the problem of sealing interface failure caused by local deformation or vibration impact of the glass substrate in the suction cup below the cutting path, this utility model proposes an automatic alignment and cutting device for multi-station liquid crystal display glass substrates to overcome the aforementioned technical problems in existing related technologies.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is an automatic alignment and cutting device for a multi-station liquid crystal display glass substrate, including a cutting table, an adjustable adsorption component on the top of the cutting table, a displacement component on the upper side of the cutting table, a rotating component at the moving end of the displacement component, and an elastic extrusion component and a laser gun at the rotating end of the rotating component.

[0007] The adsorption component is used to adsorb and fix the glass substrate. The displacement component drives the elastic extrusion component and the laser gun to move synchronously through the rotation component, so that the laser gun cuts the glass substrate, and the elastic extrusion component extrudes both sides of the cutting path.

[0008] Furthermore, the adjustable adsorption assembly includes an adjustment groove, which is located on the top of the cutting table. A vacuum suction cup is installed inside the adjustment groove, and a connecting pipe is fixedly connected to the bottom of the vacuum suction cup.

[0009] Furthermore, a support leg is fixedly connected to the bottom of the cutting table, a longitudinal adjustment guide rail is fixedly installed on the inner side of the support leg, a transverse adjustment guide rail is fixedly installed on the moving end of the longitudinal adjustment guide rail, and the vacuum suction cup is fixedly installed on the moving end of the transverse adjustment guide rail.

[0010] Furthermore, the displacement assembly includes a support plate, which is fixedly installed on the top of the cutting table. A longitudinal cutting guide rail is fixedly installed on one side of the support plate, and a transverse cutting guide rail is fixedly installed on the moving end of the longitudinal cutting guide rail. An L-shaped mounting bracket is fixedly installed on the moving end of the transverse cutting guide rail.

[0011] Furthermore, the rotating assembly includes a rotating motor, which is fixedly mounted on the top of the L-shaped mounting bracket. The output end of the rotating motor passes through the L-shaped mounting bracket and is fixedly connected to the rotating frame. The laser gun is fixedly mounted on the bottom of the rotating frame.

[0012] Furthermore, the elastic extrusion assembly includes a connecting plate, a T-shaped rod is movably connected to the top of the connecting plate, the bottom end of the T-shaped rod passes through the connecting plate and is fixedly connected to an L-shaped extrusion frame, a plurality of rubber extrusion rollers are rotatably connected inside the L-shaped extrusion frame, and a spring is provided between the connecting plate and the L-shaped extrusion frame.

[0013] Furthermore, a lifting hydraulic cylinder is fixedly installed on the bottom of the inner wall of the rotating frame, and a connecting frame is fixedly connected to the output end of the lifting hydraulic cylinder. A movable groove is opened at the bottom of the rotating frame, and the connecting frame is fixedly connected to the connecting plate through the movable groove.

[0014] This utility model has the following beneficial effects:

[0015] 1. This utility model uses a displacement component and a rotation component to drive an elastic extrusion component and a laser gun to move on a glass substrate. At this time, the moving laser gun cuts the glass substrate, while the elastic extrusion component extrudes both sides of the glass substrate at the cutting position. Under the extrusion of the elastic extrusion component, the glass substrate is less prone to vibration at the cutting position, effectively avoiding the phenomenon of decreased adsorption force of the adjustable adsorption component due to the vibration of the glass substrate. This makes it less likely for the cutting path of the glass substrate to deviate and for edge cracks and other process defects to occur. At the same time, the processing accuracy and yield of the glass substrate can also be guaranteed.

[0016] 2. This utility model rotates the rotating frame of the rotary motor inside the L-shaped mounting frame. At this time, the orientation of the L-shaped extrusion frame on the rotating frame can be adjusted. This setting ensures that the orientation of the L-shaped extrusion frame is always consistent with the orientation of the cutting path. As a result, several rubber extrusion rollers inside the L-shaped extrusion frame act on the surface of the glass substrate at the optimal contact angle, forming a uniform support force that matches the cutting direction. This avoids local stress concentration or clamping failure of the substrate caused by deviation of the extrusion direction, and significantly improves the stability of the substrate when cutting complex contours.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the utility model embodiments, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 is a schematic diagram of the external outline structure of this utility model;

[0020] Figure 2 is a bottom view of the structure of this utility model as shown in Figure 1;

[0021] Figure 3 is a schematic diagram of the adjustable adsorption component structure of this utility model;

[0022] Figure 4 is a schematic diagram of the displacement component structure of this utility model;

[0023] Figure 5 is a schematic diagram of the rotating component structure of this utility model;

[0024] Figure 6 is a schematic diagram of the elastic extrusion component structure of this utility model.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1. Cutting table; 2. Adjustable adsorption assembly; 201. Adjustment groove; 202. Vacuum suction cup; 203. Connecting pipe; 204. Support leg; 205. Longitudinal adjustment guide rail; 206. Lateral adjustment guide rail; 3. Displacement assembly; 301. Support plate; 302. Longitudinal cutting guide rail; 303. Lateral cutting guide rail; 304. L-shaped mounting bracket; 4. Rotation assembly; 401. Rotary motor; 402. Rotation frame; 5. Elastic extrusion assembly; 501. Connecting plate; 502. T-shaped rod; 503. L-shaped extrusion frame; 504. Rubber extrusion roller; 505. Spring; 506. Lifting hydraulic cylinder; 507. Connecting frame; 508. Movable groove; 6. Laser gun. Detailed Implementation

[0027] The technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the utility model.

[0028] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0029] Please refer to Figures 1-6. This utility model is an automatic alignment and cutting device for a multi-station liquid crystal display glass substrate, including a cutting table 1. An adjustable adsorption component 2 is provided on the top of the cutting table 1. A displacement component 3 is provided on the upper side of the cutting table 1. A rotating component 4 is provided on the moving end of the displacement component 3. An elastic extrusion component 5 and a laser gun 6 are provided on the rotating end of the rotating component 4.

[0030] The adjustable adsorption component 2 is used to adsorb and fix the glass substrate. The displacement component 3 drives the elastic extrusion component 5 and the laser gun 6 to move synchronously through the rotation component 4, so that the laser gun 6 cuts the glass substrate, and the elastic extrusion component 5 extrudes both sides of the cutting path.

[0031] By placing the glass substrate on the adjustable adsorption component 2 and fixing the glass substrate with the adjustable adsorption component 2, and then moving the rotating component 4 driven by the displacement component 3, the elastic extrusion component 5 and the laser gun 6 move on the top of the glass substrate under the drive of the rotating component 4. At this time, the moving laser gun 6 can cut the glass substrate, while the elastic extrusion component 5 extrudes both sides of the cutting path of the glass substrate.

[0032] The displacement component 3 and the rotation component 4 drive the elastic extrusion component 5 and the laser gun 6 to move on the glass substrate. At this time, the moving laser gun 6 cuts the glass substrate, while the elastic extrusion component 5 extrudes both sides of the glass substrate at the cutting position. Under the extrusion of the elastic extrusion component 5, the glass substrate is less prone to vibration at the cutting position, which effectively avoids the phenomenon of decreased adsorption force of the adjustable adsorption component 2 due to the vibration of the glass substrate. This makes it less likely for the cutting path of the glass substrate to deviate and for process defects such as edge chipping. At the same time, the processing accuracy and yield of the glass substrate can also be guaranteed.

[0033] In one embodiment, the adjustable adsorption component 2 includes an adjustment groove 201, which is located on the top of the cutting table 1. A vacuum suction cup 202 is provided inside the adjustment groove 201, and a connecting pipe 203 is fixedly connected to the bottom of the vacuum suction cup 202.

[0034] An external vacuum pump is connected to a vacuum suction cup 202 via a connecting pipe 203. When cutting a glass substrate, the glass substrate is placed on top of the vacuum suction cup 202. At this time, the vacuum pump extracts air from inside the vacuum suction cup 202 via the connecting pipe 203, thereby creating a negative pressure inside the vacuum suction cup 202. Meanwhile, several suction holes on the vacuum suction cup 202 adsorb the glass substrate.

[0035] In one embodiment, for the cutting table 1, a support leg 204 is fixedly connected to the bottom of the cutting table 1, a longitudinal adjustment guide rail 205 is fixedly installed on the inner side of the support leg 204, a transverse adjustment guide rail 206 is fixedly installed on the moving end of the longitudinal adjustment guide rail 205, and the vacuum suction cup 202 is fixedly installed on the moving end of the transverse adjustment guide rail 206.

[0036] Positioning devices such as vision cameras and laser sensors for aligning glass substrates are integrated and installed on the top of the cutting table 1. After the glass substrate is fixed by the vacuum chuck 202, the positioning device can monitor the glass substrate in real time. Once a deviation between the position of the glass substrate and the preset reference is detected, the positioning device immediately transmits the position data to the controller. The controller synchronously drives the longitudinal adjustment guide rail 205 and the transverse adjustment guide rail 206 to move together. Under the precise displacement control of the two guide rails, the vacuum chuck 202 drives the glass substrate to move precisely within the range of motion defined by the adjustment groove 201 until the substrate position is completely aligned with the cutting coordinate system, achieving dynamic position calibration with micron-level precision.

[0037] In one embodiment, the displacement component 3 includes a support plate 301, which is fixedly installed on the top of the cutting table 1. A longitudinal cutting guide rail 302 is fixedly installed on one side of the support plate 301, and a transverse cutting guide rail 303 is fixedly installed on the moving end of the longitudinal cutting guide rail 302. An L-shaped mounting bracket 304 is fixedly installed on the moving end of the transverse cutting guide rail 303.

[0038] The moving end of the longitudinal cutting guide rail 302 can drive the transverse cutting guide rail 303 to move longitudinally on the upper side of the cutting table 1. The moving end of the transverse cutting guide rail 303 can drive the L-shaped mounting bracket 304 to move laterally on the cutting table 1. The two guide rails cooperate with each other to allow the L-shaped mounting bracket 304 to move arbitrarily on the cutting table 1, thereby enabling the laser gun 6 to complete the cutting of glass substrates of different sizes.

[0039] In one embodiment, the rotating component 4 includes a rotating motor 401, which is fixedly mounted on the top of an L-shaped mounting bracket 304. The output end of the rotating motor 401 passes through the L-shaped mounting bracket 304 and is fixedly connected to a rotating frame 402. The laser gun 6 is fixedly mounted on the bottom of the rotating frame 402.

[0040] By driving the rotary motor 401, the rotary motor 401 can drive the rotary frame 402 to rotate inside the L-shaped mounting bracket 304. At the same time, the L-shaped mounting bracket 304 can drive the elastic extrusion component 5 and the laser gun 6 to rotate synchronously. This arrangement ensures that when the direction of the laser gun 6 cutting the glass substrate changes, the extrusion end of the elastic extrusion component 5 can be aligned with the direction of the cutting path, thereby guaranteeing the extrusion effect of the elastic extrusion component 5.

[0041] In one embodiment, the elastic extrusion assembly 5 includes a connecting plate 501, a T-shaped rod 502 is movably connected to the top of the connecting plate 501, the bottom end of the T-shaped rod 502 passes through the connecting plate 501 and is fixedly connected to an L-shaped extrusion frame 503, a plurality of rubber extrusion rollers 504 are rotatably connected inside the L-shaped extrusion frame 503, and a spring 505 is provided between the connecting plate 501 and the L-shaped extrusion frame 503.

[0042] Spring 505 can push L-shaped extrusion frame 503 downwards, thereby causing L-shaped extrusion frame 503 to drive several rubber extrusion rollers 504 downwards and make several rubber extrusion rollers 504 contact the top of glass substrate. The buffering characteristics of spring 505 can ensure that rubber extrusion rollers 504 adhere to the substrate surface with constant and controllable pressure. The setting of spring 505 provides uniform contact force through elastic deformation to assist in fixation, and avoids stress damage to ultra-thin substrate due to excessive rigid pressure, thus achieving a mechanical balance between flexible clamping and rigid positioning. When L-shaped mounting bracket 304 drives laser gun 6 to move, rubber extrusion rollers 504 can rotate on glass substrate. This setting allows rubber extrusion rollers 504 to always maintain the extrusion and fixation of glass substrate, while the friction between the two is small, thereby avoiding wear on the surface of glass substrate due to friction.

[0043] In one embodiment, for the aforementioned rotating frame 402, a lifting hydraulic cylinder 506 is fixedly installed on the bottom of the inner wall of the rotating frame 402, and a connecting frame 507 is fixedly connected to the output end of the lifting hydraulic cylinder 506. A movable groove 508 is provided at the bottom of the rotating frame 402, and the connecting frame 507 is fixedly connected to the connecting plate 501 through the movable groove 508.

[0044] By driving the lifting hydraulic cylinder 506, the connecting frame 507 moves inside the movable groove 508. At the same time, the moving connecting frame 507 can squeeze the connecting plate 501, so that the connecting plate 501 and the L-shaped extrusion frame 503 cooperate to squeeze the spring 505, thereby precisely adjusting the compression of the spring 505 and changing its elastic preload. By dynamically adjusting the downward load of the spring 505 on the rubber extrusion roller 504 in real time through the hydraulic system, the glass substrate is stably clamped while avoiding stress damage or clamping failure caused by improper fixing pressure, thus achieving adaptive adjustment of flexible clamping force.

[0045] Through the above technical solution, 1. The displacement component 3 and the rotation component 4 drive the elastic extrusion component 5 and the laser gun 6 to move on the glass substrate. At this time, the moving laser gun 6 cuts the glass substrate, while the elastic extrusion component 5 extrudes both sides of the glass substrate at the cutting position. Under the extrusion of the elastic extrusion component 5, the glass substrate is less prone to vibration at the cutting position, effectively avoiding the phenomenon of decreased adsorption force of the adjustable adsorption component 2 due to the vibration of the glass substrate. Therefore, the cutting path of the glass substrate is less prone to deviation and edge chipping and other process defects. At the same time, the processing accuracy of the glass substrate and the quality of the finished product are improved. The efficiency can also be guaranteed; 2. By rotating the rotating frame 402 of the rotating motor 401 inside the L-shaped mounting frame 304, the orientation of the L-shaped extrusion frame 503 on the rotating frame 402 can be adjusted. This setting allows the orientation of the L-shaped extrusion frame 503 to always be consistent with the orientation of the cutting path, so that several rubber extrusion rollers 504 inside the L-shaped extrusion frame 503 act on the surface of the glass substrate at the best contact angle, forming a uniform support force that matches the cutting direction, avoiding local stress concentration or clamping failure of the substrate caused by extrusion direction deviation, and significantly improving the stability of the substrate when cutting complex contours.

[0046] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0047] The preferred embodiments of the utility model disclosed above are merely illustrative of the utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the utility model, thereby enabling those skilled in the art to better understand and utilize it. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An automatic alignment and cutting device for multi-station liquid crystal display glass substrates, comprising a cutting table (1), characterized in that, An adjustable adsorption component (2) is provided on the top of the cutting table (1), and a displacement component (3) is provided on the upper side of the cutting table (1). A rotating component (4) is provided on the moving end of the displacement component (3), and an elastic extrusion component (5) and a laser gun (6) are provided on the rotating end of the rotating component (4). The adjustable adsorption component (2) is used to adsorb and fix the glass substrate. The displacement component (3) drives the elastic extrusion component (5) and the laser gun (6) to move synchronously through the rotating component (4), so that the laser gun (6) cuts the glass substrate, and the elastic extrusion component (5) extrudes both sides of the cutting path.

2. The automatic alignment and cutting device for multi-station liquid crystal display glass substrates according to claim 1, characterized in that, The adjustable adsorption component (2) includes an adjustment groove (201), which is located on the top of the cutting table (1). A vacuum suction cup (202) is provided inside the adjustment groove (201), and a connecting pipe (203) is fixedly connected to the bottom of the vacuum suction cup (202).

3. The automatic alignment and cutting device for multi-station liquid crystal display glass substrates according to claim 2, characterized in that, The bottom of the cutting table (1) is fixedly connected to a support leg (204), and a longitudinal adjustment guide rail (205) is fixedly installed on the inner side of the support leg (204). A transverse adjustment guide rail (206) is fixedly installed on the moving end of the longitudinal adjustment guide rail (205), and the vacuum suction cup (202) is fixedly installed on the moving end of the transverse adjustment guide rail (206).

4. The automatic alignment and cutting device for multi-station liquid crystal display glass substrates according to claim 1, characterized in that, The displacement component (3) includes a support plate (301), which is fixedly installed on the top of the cutting table (1). A longitudinal cutting guide rail (302) is fixedly installed on one side of the support plate (301). A transverse cutting guide rail (303) is fixedly installed at the moving end of the longitudinal cutting guide rail (302). An L-shaped mounting bracket (304) is fixedly installed at the moving end of the transverse cutting guide rail (303).

5. The automatic alignment and cutting device for multi-station liquid crystal display glass substrates according to claim 4, characterized in that, The rotating assembly (4) includes a rotating motor (401), which is fixedly installed on the top of the L-shaped mounting bracket (304). The output end of the rotating motor (401) passes through the L-shaped mounting bracket (304) and is fixedly connected to a rotating frame (402). The laser gun (6) is fixedly installed on the bottom of the rotating frame (402).

6. The automatic alignment and cutting device for multi-station liquid crystal display glass substrates according to claim 5, characterized in that, The elastic extrusion assembly (5) includes a connecting plate (501), a T-shaped rod (502) is movably connected to the top of the connecting plate (501), the bottom end of the T-shaped rod (502) passes through the connecting plate (501) and is fixedly connected to an L-shaped extrusion frame (503), a plurality of rubber extrusion rollers (504) are rotatably connected inside the L-shaped extrusion frame (503), and a spring (505) is provided between the connecting plate (501) and the L-shaped extrusion frame (503).

7. The automatic alignment and cutting device for multi-station liquid crystal display glass substrates according to claim 6, characterized in that, A lifting hydraulic cylinder (506) is fixedly installed on the bottom of the inner wall of the rotating frame (402). A connecting frame (507) is fixedly connected to the output end of the lifting hydraulic cylinder (506). A movable groove (508) is opened at the bottom of the rotating frame (402). The connecting frame (507) is fixedly connected to the connecting plate (501) through the movable groove (508).

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