A fixing device for processing liquid crystal display

Abstract

The application discloses a fixing device for liquid crystal display screen processing, which comprises a supporting assembly, a moving assembly and four sets of clamping fixing assemblies installed on the top of the supporting assembly, wherein the four sets of clamping fixing assemblies comprise two outer sleeve frames and two inner sleeve strips, the inner sleeve strips are slidably installed on the inner sides of opposite sides of the outer sleeve frames respectively, clamping blocks are fixedly installed on opposite sides of the inner sleeve strips, and connecting belts are fixedly connected to one side of the clamping blocks. The device abandons the traditional rigid pressing and clamping mode, utilizes the relative movement formed by the outer sleeve frame feeding and the outer frame body limiting, generates the flexible clamping force through the inner sleeve strip sliding and pulling the spring, realizes the self-adaptive and impact-free flexible clamping, can effectively avoid the damage of the liquid crystal display screen caused by the too large clamping force, such as edge collapse, fragmentation and surface indentation, and is simultaneously equipped with the rubber pad flexible contact and the anti-static silica gel connecting belt, so that the processing static electricity can be effectively released, the internal precision components of the screen are protected, and the product processing yield is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of display screen processing technology, specifically to a fixing device for processing liquid crystal displays. Background Technology

[0002] As a core display component in various smart terminals, automotive displays, and smart home devices, LCD screens are characterized by their thinness, brittle glass substrates, precise surface coatings, and susceptibility to electrostatic damage. This places extremely high demands on clamping precision, clamping flexibility, and operational cleanliness during the manufacturing process. In precision machining processes such as LCD screen cutting, grinding, dispensing, and appearance inspection, a stable, clean, and damage-free clamping structure is crucial for ensuring product processing accuracy and yield.

[0003] Currently, most traditional LCD screen processing and fixing devices on the market adopt a rigid clamping structure, which has many defects and shortcomings in actual production applications. Traditional fixtures mostly fix the screen by directly pushing hard clamping blocks with a motor. The clamping force is difficult to self-adjust. The clamping process is a hard contact impact, which can easily cause indentations, chipping, or even complete breakage of the sides of ultra-thin LCD screens. Moreover, long-term rigid clamping can easily lead to uneven stress on the screen and micro-deformation, which seriously affects the accuracy of subsequent processing. Secondly, existing fixing devices generally do not have a follow-up dust removal function. During the grinding and cutting of the display screen, a large amount of glass dust and fine debris are generated. The dust can easily accumulate between the clamping contact surface and the sides of the screen. Traditional fixtures cannot clean the impurities in real time during the clamping process, causing debris to be squeezed and adhered to the screen surface, resulting in screen scratches, clamping gap misalignment, processing defects, etc., which significantly reduces the product appearance quality and processing pass rate. Summary of the Invention

[0004] The purpose of this invention is to provide a fixing device for processing liquid crystal displays, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a fixing device for processing liquid crystal displays, comprising a support assembly, a movable assembly mounted on the top of the support assembly, and four sets of clamping and fixing assemblies. The four sets of clamping and fixing assemblies include two outer frames and two inner sleeves, and the inner sleeves are slidably mounted on the inner sides of opposite sides of the outer frames. Clamping blocks are fixedly mounted on opposite sides of the inner sleeves, and a connecting strap is fixedly connected to one side of each clamping block.

[0006] Preferably, rubber pads are fixedly installed on opposite sides of the clamping blocks, limit insertion holes are opened inside the inner sleeve, and limit sliding pins are fixedly installed on the inner side of the outer frame, with the limit sliding pins slidably inserted into the inner side of the limit insertion holes.

[0007] Preferably, springs are fixedly installed on opposite sides of the inner sleeve, and the springs are sleeved on the outside of the limiting slide post. The end of the spring away from the inner sleeve is fixedly connected to the top of the inner cavity of the outer frame.

[0008] Preferably, an installation strap is fixedly installed on one side of the connecting strap, and a malleable airbag is fixedly installed on the side of the installation strap away from the connecting strap. An extrusion strap is fixedly installed on one side of the outer frame. A rectangular through hole is opened on the inner side of the clamping block. The extrusion strap is located inside the rectangular through hole and outside the malleable airbag. Both ends of the malleable airbag are connected to air guide tubes, and the end of the air guide tube away from the rectangular through hole is connected to the inner side of the clamping block. An air outlet is opened inside the clamping block and the rubber pad. A one-way air inlet valve is installed on the outer side of the malleable airbag, and a one-way air outlet valve is installed at the connection between the malleable airbag and the air guide tube.

[0009] Preferably, the support assembly includes a support base plate, a support column is fixedly installed on the top of the support base plate, a placement platform is fixedly installed on the top of the support column, a fixing frame is fixedly installed symmetrically on the outer side of the placement platform, and an outer frame is fixedly installed at the end of the fixing frame away from the placement platform, the bottom of the outer frame and the top of the placement platform are on the same horizontal plane.

[0010] Preferably, the movable component includes four U-shaped frames, each of the four U-shaped frames is divided into two groups, and a connecting rod is fixedly installed between the two U-shaped frames in each group. A second movable plate is fixedly installed on one side of the bottom of the connecting rod. The second movable plate has a threaded hole inside, and the threads inside the threaded hole are in opposite directions. A first movable plate is fixedly installed on the other side of the bottom of the connecting rod, and a sliding hole is opened inside the first movable plate.

[0011] Preferably, connecting blocks are fixedly installed on opposite ends of the outer frame, and the two ends of the U-shaped frame are respectively fixedly connected to one side of the connecting block.

[0012] Preferably, a limit slide rod is fixedly installed on the top of the support base plate, a drive motor is fixedly installed on the top of the support base plate, and a threaded rod is fixedly installed on the output end of the drive motor, with the thread directions of the two ends of the threaded rod being opposite.

[0013] Preferably, the two movable plates are symmetrically threaded to the outside of the threaded rod through threaded holes, and the two movable plates are slidably mounted on the outside of the limiting slide rod through sliding holes.

[0014] Preferably, the horizontal centerline of the outer frame and the horizontal centerline of the connecting strip are in the same horizontal plane, and the connecting strip is made of antistatic silicone.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: by abandoning the traditional rigid clamping method, the relative motion is formed by the outer frame feeding and the outer frame limiting, and the flexible clamping force is generated by the inner sleeve sliding pull spring, so as to achieve adaptive and impact-free flexible clamping. This can effectively avoid damage such as edge chipping, cracking, and surface indentation of the LCD screen caused by excessive clamping force. At the same time, it is equipped with rubber pad flexible contact and anti-static silicone connecting strip, which can effectively release processing static electricity and protect the precision components inside the screen. It has excellent adaptability to ultra-thin, fragile, and high-precision LCD screens, and greatly improves the product processing yield. In addition, relying on the extrusion of the plastic airbag on the outside of the connecting belt by the feed motion, the clamping process is simultaneously blown to remove dust. This can remove dust and debris from the clamping contact surface in real time, eliminating screen scratches and processing defects caused by impurities. The mechanical airbag blowing structure uses the mechanical power of the clamping feed to extrude air from the plastic airbag, generating airflow. No additional blowing equipment is required to achieve simultaneous dust removal in the clamping area. During processing, dust and glass fragments accumulated on the sidewalls of the screen and the clamping contact surface can be blown away in real time, completely avoiding defects such as scratches, clamping gaps, and processing misalignment caused by impurities being clamped between the fixture and the screen. The clamping working surface is kept clean throughout the process, effectively improving the appearance quality and finished product qualification rate of the display screen. Moreover, the structure starts and stops in conjunction with the clamping action, with a high degree of automation and strong practicality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the three-dimensional outer frame structure of the present invention.

[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the support component of the present invention.

[0018] Figure 3 This is a three-dimensional structural diagram of the moving component and the clamping and fixing component of the present invention.

[0019] Figure 4 This is a three-dimensional structural diagram of the clamping and fixing component of the present invention.

[0020] Figure 5 This is a schematic diagram of the three-dimensional structure of the U-shaped frame of the present invention.

[0021] Figure 6 This is a partial structural diagram of the clamping and fixing component of the present invention.

[0022] In the diagram: 1. Support base plate; 2. U-shaped frame; 3. Movable plate one; 4. Connecting frame rod; 5. Limiting slide rod; 6. Drive motor; 7. Movable plate two; 8. Threaded rod; 9. Fixed frame rod; 10. Outer frame; 11. Connecting block; 12. Placement platform; 13. Clamping block; 14. Outer frame; 15. Extrusion band; 16. Mounting band; 17. Support column; 18. Limiting slide rod; 19. Threaded hole; 20. Sliding hole; 21. Rubber pad; 22. Air outlet; 23. Connecting band; 24. Molded airbag; 25. Air duct; 26. Rectangular through hole; 27. Limiting insertion hole; 28. Spring; 29. ​​Inner sleeve. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Please see Figures 1-6This invention provides a technical solution: a fixing device for processing liquid crystal displays, including a support assembly, a movable assembly mounted on top of the support assembly, and four sets of clamping and fixing assemblies. The four sets of clamping and fixing assemblies include two outer frames 14 and two inner sleeves 29, with the inner sleeves 29 slidably mounted on the inner sides of opposite sides of the outer frames 14. Clamping blocks 13 are fixedly mounted on opposite sides of each inner sleeve 29. A connecting strap 23 is fixedly connected to one side of each clamping block 13, and rubber pads 21 are fixedly mounted on opposite sides of each clamping block 13. Limiting holes 27 are formed inside each inner sleeve 29. The outer frames 14... Limiting sliding posts 18 are fixedly installed on the inner side of each inner sleeve 29, and the limiting sliding posts 18 are slidably inserted into the inner side of the limiting insertion hole 27. Springs 28 are fixedly installed on the opposite sides of the inner sleeve 29, and the springs 28 are sleeved on the outer side of the limiting sliding posts 18. The end of the spring 28 away from the inner sleeve 29 is fixedly connected to the top of the inner cavity of the outer frame 14. The support assembly includes a support base plate 1, a support column 17 is fixedly installed on the top of the support base plate 1, a placement platform 12 is fixedly installed on the top of the support column 17, and a fixing bracket rod 9 is symmetrically fixedly installed on the outer side of the placement platform 12, with the end of the fixing bracket rod 9 away from the placement platform 12 fixed. An outer frame 10 is installed, with its bottom and the top of the placement platform 12 on the same horizontal plane. The moving assembly includes four U-shaped frames 2, each divided into two groups. A connecting rod 4 is fixedly installed between the two U-shaped frames in each group. A second movable plate 7 is fixedly installed on one side of the bottom of the connecting rod 4. The second movable plate 7 has threaded holes 19 inside, with the threads inside the threaded holes 19 in opposite directions. A first movable plate 3 is fixedly installed on the other side of the bottom of the connecting rod 4, and the first movable plate 3 has sliding holes 20 inside. Connecting blocks 11 are fixedly installed on opposite ends of the outer frame 14. The two ends of the U-shaped frame 2 are fixedly connected to one side of the connecting block 11, respectively. The top of the supporting base plate 1 is fixedly installed with a limiting slide rod 5. The top of the supporting base plate 1 is fixedly installed with a drive motor 6. The output end of the drive motor 6 is fixedly installed with a threaded rod 8, and the thread directions at both ends of the threaded rod 8 are opposite. Two movable plates 7 are symmetrically threadedly connected to the outside of the threaded rod 8 through threaded holes 19. Two movable plates 3 are slidably installed on the outside of the limiting slide rod 5 through sliding holes 20. The horizontal center line of the outer frame 10 and the horizontal center line of the connecting strip 23 are in the same horizontal plane. The connecting strip 23 is made of anti-static silicone.

[0025] The working principle of the above technical solution is as follows: In the standby no-load state of the device, the drive motor 6 remains stopped, the threaded rod 8 is locked at rest, and the two sets of symmetrically arranged moving plates 7 are in the maximum opening distance state. The inner sleeve 29 is slidably sleeved on the outside of the limiting slide column 18 through the limiting insertion hole 27. Under the elastic pushing action of the spring 28, the inner sleeve 29 slides outward along the limiting slide column 18 to achieve elastic opening and reset, driving the two sets of clamping blocks 13 to maintain the maximum clamping distance. At the same time, the moving plate 3 slides and is limited along the limiting slide rod 5. The overall clamping structure is stable and without deviation, which reserves sufficient and regular placement space for subsequent manual or mechanical feeding, ensures the initial working condition of the equipment is stable, and meets the feeding requirements of LCD screens of different sizes. The support assembly, as the load-bearing base of the entire device, consists of a support base plate 1 and a support column 17, forming a stable support structure that effectively reduces vibration and displacement during equipment processing. The LCD screen to be processed is placed stably on the upper plane of the placement platform 12. The placement platform 12 is connected to the outer frame 10 through the surrounding fixed brackets 9, and the bottom of the outer frame 10 and the top of the placement platform 12 are kept at the same level, forming an integrated flat load-bearing platform. This provides all-round stable support for the bottom of the display screen and provides preliminary limiting constraints on the periphery, effectively preventing problems such as tilting, misalignment, and suspension when the display screen is placed, ensuring that the display screen is placed flat and neat, and laying a good foundation for subsequent precise and uniform clamping and fixing. During the formal clamping operation, the drive motor 6 is started. The output end of the drive motor 6 drives the threaded rod 8 to rotate in the forward direction at a uniform speed. Since the two ends of the threaded rod 8 are set with reverse thread structure, the two moving plates 7 that are threaded and matched with it can achieve high-precision, synchronous, and mutual approaching movement under the transmission action of the threaded hole 19. At the same time, the moving plate 3 is sleeved on the outside of the limiting slide rod 5 through the internal sliding hole 20, and is horizontally sliding and limiting the constraint throughout the process to prevent problems such as offset, jamming, and tilting during the movement. The moving plate 7 and the moving plate 3 are connected to form an integral frame structure through the connecting frame rod 4. Then, through the U-shaped frame 2 and the connecting block 11, the outer frames 14 on both sides are driven to synchronously and horizontally center and feed, ensuring the consistency of the movement of the clamping structure on both sides and realizing the automatic centering and positioning of the display screen. During the synchronous feeding of the outer frame 14 towards the center, the clamping block 13 first contacts and limits the outer wall of the outer frame 10. Due to the blocking and limiting effect of the outer frame 10, when the outer frame 14 continues to feed forward, it will pull the clamping block 13 in the opposite direction to precisely move closer to the display screen. During this process, the clamping block 13 drives the fixedly connected inner sleeve 29 to slide along the limiting slide post 18 relative to the inside of the outer frame 14, so that the inner sleeve 29 and the outer frame 14 will have relative displacement, which in turn forms a stable pulling effect on the spring 28 sleeved on the outside of the limiting slide post 18, causing the spring 28 to produce tensile elastic deformation. Through the tensile buffer characteristics of the spring 28, it can adaptively absorb the clamping impact force and flexibly balance the clamping tension. With the rubber pad 21 on the inner side of the clamping block 13 flexibly adhering to the side wall of the display screen, a soft, uniform, and controllable flexible pre-clamping positioning is achieved, eliminating the screen chipping, indentation, and cracking caused by the sudden increase in force in the traditional rigid clamping method. After the display screen is flexibly dust-proofed and clamped, the device can stably adapt to multiple precision processing steps such as cutting, grinding, dispensing, and testing. The entire process relies on the elastic buffer structure and the pressure-stabilizing clamping structure to avoid screen slippage or displacement caused by processing vibration, thus ensuring processing accuracy. After the workpiece is processed, the control system controls the drive motor 6 to rotate in the reverse direction, which drives the threaded rod 8 to rotate in the reverse direction. This drives the two sets of moving components and the outer clamping components to synchronously separate and open in the reverse direction. At this time, the spring 28 loses its compressive force and elastically rebounds, pushing the inner sleeve 29 to reset along the limit slide post 18. The clamping block 13 simultaneously releases the display screen, and the operator can smoothly remove the finished workpiece. Each structure automatically returns to the initial standby state, completing a single automated clamping processing cycle, which can be continuously reciprocated.

[0026] In another implementation scheme, such as Figures 1-6 As shown, 16 is fixedly installed on one side of 23, 24 is fixedly installed on the side of 16 away from 23, 15 is fixedly installed on one side of 14, 26 is opened on the inner side of 13, 15 is located inside 26 and outside 24, 25 is connected to both ends of 24, and the end of 25 away from 26 is connected to the inner side of 13, 22 is opened inside both 13 and 21, a one-way air intake valve is installed on the outer side of 24, and a one-way air outlet valve is installed at the connection between 24 and 25.

[0027] During the clamping and feeding process described above, the extrusion band 15 located inside the rectangular through hole 26 moves forward continuously with the outer frame 14, gradually extruding the malleable airbag 24 installed on the outside of the connecting band 23 and fixed on the outside of the mounting band 16. The malleable airbag 24 is compressed and contracts, and the internal air is introduced into the air guide pipe 25 connected on both sides through the one-way air outlet valve. Finally, it is evenly delivered to the air outlet 22 inside the clamping block 13 and the rubber pad 21 and sprayed outward. The airflow can blow away dust, glass fragments and impurities on the side wall of the screen and the clamping contact surface in real time, avoiding screen scratches and processing defects caused by impurities being clamped. At the same time, the malleable airbag 24 is deformed under pressure to fill the gap in the structure, and with the anti-static silicone material of the connecting band 23, it fits and limits the position, effectively eliminating static electricity during processing, ensuring that the clamping is gapless, the force is uniform, and the positioning is stable.

[0028] Working principle: In the standby no-load state, the drive motor 6 remains stopped, the threaded rod 8 is locked at rest, and the two sets of symmetrically arranged moving plates 7 are in the maximum opening distance state. The inner sleeve 29 is slidably sleeved on the outside of the limiting slide column 18 through the limiting insertion hole 27. Under the elastic pushing action of the spring 28, the inner sleeve 29 slides outward along the limiting slide column 18 to achieve elastic opening and reset, driving the two sets of clamping blocks 13 to maintain the maximum clamping distance. At the same time, the moving plate 3 slides and is limited along the limiting slide rod 5. The overall clamping structure is stable and without deviation, leaving sufficient and regular placement space for subsequent manual or mechanical feeding, ensuring the initial working condition of the equipment is stable, and meeting the feeding requirements of LCD screens of different sizes. The support assembly, as the load-bearing base of the entire device, consists of a support base plate 1 and a support column 17, forming a stable support structure that effectively reduces vibration and displacement during equipment processing. The LCD screen to be processed is placed stably on the upper plane of the placement platform 12. The placement platform 12 is connected to the outer frame 10 through the surrounding fixed brackets 9, and the bottom of the outer frame 10 and the top of the placement platform 12 are kept at the same level, forming an integrated flat load-bearing platform. This provides all-round stable support for the bottom of the display screen and provides preliminary limiting constraints on the periphery, effectively preventing problems such as tilting, misalignment, and suspension when the display screen is placed, ensuring that the display screen is placed flat and neat, and laying a good foundation for subsequent precise and uniform clamping and fixing. During the formal clamping operation, the drive motor 6 is started. The output end of the drive motor 6 drives the threaded rod 8 to rotate in the forward direction at a uniform speed. Since the two ends of the threaded rod 8 are set with reverse thread structure, the two moving plates 7 that are threaded and matched with it can achieve high-precision, synchronous, and mutual approaching movement under the transmission action of the threaded hole 19. At the same time, the moving plate 3 is sleeved on the outside of the limiting slide rod 5 through the internal sliding hole 20, and is horizontally sliding and limiting the constraint throughout the process to prevent problems such as offset, jamming, and tilting during the movement. The moving plate 7 and the moving plate 3 are connected to form an integral frame structure through the connecting frame rod 4. Then, through the U-shaped frame 2 and the connecting block 11, the outer frames 14 on both sides are driven to synchronously and horizontally center and feed, ensuring the consistency of the movement of the clamping structure on both sides and realizing the automatic centering and positioning of the display screen. During the synchronous feeding of the outer frame 14 towards the center, the clamping block 13 first contacts and limits the outer wall of the outer frame 10. Due to the blocking and limiting effect of the outer frame 10, when the outer frame 14 continues to feed forward, it will pull the clamping block 13 in the opposite direction to precisely move closer to the display screen. During this process, the clamping block 13 drives the fixedly connected inner sleeve 29 to slide along the limiting slide post 18 relative to the inside of the outer frame 14, so that the inner sleeve 29 and the outer frame 14 will have relative displacement, which in turn forms a stable pulling effect on the spring 28 sleeved on the outside of the limiting slide post 18, causing the spring 28 to produce tensile elastic deformation. Through the tensile buffer characteristics of the spring 28, it can adaptively absorb the clamping impact force and flexibly balance the clamping tension. With the rubber pad 21 on the inner side of the clamping block 13 flexibly adhering to the side wall of the display screen, a soft, uniform, and controllable flexible pre-clamping positioning is achieved, eliminating the screen chipping, indentation, and cracking caused by the sudden increase in force in the traditional rigid clamping method. During the clamping and feeding process described above, the extrusion band 15 located inside the rectangular through hole 26 moves forward with the outer frame 14, gradually extruding the malleable airbag 24 installed on the outside of the connecting band 23 and fixed on the outside of the mounting band 16. The malleable airbag 24 is compressed and contracts, and the internal air is introduced into the air guide pipe 25 connected on both sides through the one-way air outlet valve. Finally, it is evenly delivered to the air outlet 22 inside the clamping block 13 and the rubber pad 21 and sprayed outward. The airflow can blow away dust, glass fragments and impurities on the side wall of the screen and the clamping contact surface in real time, avoiding screen scratches and processing defects caused by impurities being clamped. At the same time, the malleable airbag 24 is deformed under pressure to fill the gap in the structure, and with the anti-static silicone material of the connecting band 23, it fits and limits the position, effectively eliminating static electricity during processing, ensuring that the clamping is gapless, the force is uniform, and the positioning is stable. After the display screen is flexibly dust-proofed and clamped, the device can stably adapt to multiple precision processing steps such as cutting, grinding, dispensing, and testing. The entire process relies on the elastic buffer structure and the pressure-stabilizing clamping structure to avoid screen slippage or displacement caused by processing vibration, thus ensuring processing accuracy. After the workpiece is processed, the control system controls the drive motor 6 to rotate in the reverse direction, which drives the threaded rod 8 to rotate in the reverse direction. This drives the two sets of moving components and the outer clamping components to synchronously separate and open in the reverse direction. At this time, the spring 28 loses its compressive force and elastically rebounds, pushing the inner sleeve 29 to reset along the limit slide post 18. The clamping block 13 simultaneously releases the display screen, and the operator can smoothly remove the finished workpiece. Each structure automatically returns to the initial standby state, completing a single automated clamping processing cycle, which can be continuously reciprocated.

[0029] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fixing device for processing liquid crystal displays, comprising a support assembly, a movable assembly mounted on top of the support assembly, and four sets of clamping and fixing assemblies, characterized in that: The four sets of clamping and fixing components include two outer frames (14) and two inner sleeves (29), and the inner sleeves (29) are slidably installed on the inner side of the opposite side of the outer frames (14). Clamping blocks (13) are fixedly installed on the opposite side of the inner sleeves (29), and a connecting strap (23) is fixedly connected to one side of the clamping block (13).

2. The fixing device for processing a liquid crystal display screen according to claim 1, characterized in that: Rubber pads (21) are fixedly installed on opposite sides of the clamping block (13). Limiting holes (27) are opened inside the inner sleeve (29). Limiting slides (18) are fixedly installed on the inner side of the outer frame (14), and the limiting slides (18) are slidably inserted into the inner side of the limiting holes (27).

3. The fixing device for processing a liquid crystal display screen according to claim 2, characterized in that: Springs (28) are fixedly installed on the opposite sides of the inner sleeve (29). The springs (28) are sleeved on the outside of the limiting slide (18). The end of the spring (28) away from the inner sleeve (29) is fixedly connected to the top of the inner cavity of the outer frame (14).

4. The fixing device for processing a liquid crystal display screen according to claim 3, characterized in that: An installation strap (16) is fixedly installed on one side of the connecting strap (23). A malleable airbag (24) is fixedly installed on the side of the installation strap (16) away from the connecting strap (23). An extrusion strap (15) is fixedly installed on one side of the outer frame (14). A rectangular through hole (26) is opened on the inner side of the clamping block (13). The extrusion strap (15) is located inside the rectangular through hole (26) and is located inside the malleable airbag (24). On the outside of the plastic airbag (24), both ends of the plastic airbag (24) are connected to air guide tubes (25), and the end of the air guide tube (25) away from the rectangular through hole (26) is connected to the inside of the clamping block (13). The clamping block (13) and the rubber pad (21) are both provided with air outlet holes (22). A one-way air inlet valve is installed on the outside of the plastic airbag (24), and a one-way air outlet valve is installed at the connection between the plastic airbag (24) and the air guide tube (25).

5. The fixing device for processing a liquid crystal display screen according to claim 4, characterized in that: The support assembly includes a support base plate (1), a support column (17) is fixedly installed on the top of the support base plate (1), a placement platform (12) is fixedly installed on the top of the support column (17), a fixing frame rod (9) is symmetrically fixedly installed on the outer side of the placement platform (12), and an outer frame (10) is fixedly installed on the end of the fixing frame rod (9) away from the placement platform (12). The bottom of the outer frame (10) and the top of the placement platform (12) are on the same horizontal plane.

6. The fixing device for processing a liquid crystal display screen according to claim 5, characterized in that: The moving component includes four U-shaped frames (2), each of the four U-shaped frames (2) is divided into two groups, and a connecting rod (4) is fixedly installed between the two U-shaped frames (2) in each group. A second moving plate (7) is fixedly installed on one side of the bottom of the connecting rod (4). The second moving plate (7) has a threaded hole (19) inside, and the threads inside the threaded hole (19) are opposite in direction. A first moving plate (3) is fixedly installed on the other side of the bottom of the connecting rod (4), and a sliding hole (20) is opened inside the first moving plate (3).

7. A fixing device for processing liquid crystal displays according to claim 6, characterized in that: The opposite ends of the outer frame (14) are fixedly installed with connecting blocks (11), and the two ends of the U-shaped frame (2) are respectively fixedly connected to one side of the connecting block (11).

8. A fixing device for processing a liquid crystal display screen according to claim 7, characterized in that: A limit slide rod (5) is fixedly installed on the top of the support base plate (1), and a drive motor (6) is fixedly installed on the top of the support base plate (1). A threaded rod (8) is fixedly installed at the output end of the drive motor (6), and the thread directions at both ends of the threaded rod (8) are opposite.

9. A fixing device for processing liquid crystal displays according to claim 8, characterized in that: The two movable plates (7) are symmetrically threaded to the outside of the threaded rod (8) through the threaded hole (19), and the two movable plates (3) are slidably installed on the outside of the limiting slide rod (5) through the sliding hole (20).

10. A fixing device for processing a liquid crystal display screen according to claim 9, characterized in that: The horizontal center line of the outer frame (10) and the horizontal center line of the connecting strip (23) are in the same horizontal plane, and the connecting strip (23) is made of antistatic silicone.

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