A tablet computer display screen assembly limit matching device

Abstract

The present invention relates to the technical field of accessory assembly, and specifically to a tablet computer display screen assembly limiting matching device, including a guide mechanism, a display outer screen is placed on the internal top end of the guide mechanism, a tablet housing is placed on the internal bottom end of the guide mechanism, the guide mechanism includes a positioning component and a matching component, the positioning component is fixedly installed on the top end of the matching component, the positioning component includes a displacement device and a support device, the displacement device is slidably plugged into the interior of the support device, the support device includes a screw rod, a drive motor and an extension bracket, the drive motor is fixedly installed on the rear end top of the extension bracket, the screw rod is fixedly installed on the front end center of the drive motor, the extension bracket is fixedly installed with two base frames at the internal rear end near the screw rod, a winding wheel is rotatably installed on the front end of the base frame, and a gear is fixedly installed on the opposite side end center of the winding wheel. Through the setting of the guide mechanism, the purpose of the display screen assembly equipment to perform precise alignment point gluing and alignment assembly of the display screen is achieved.

Description

Technical Field

[0001] This invention relates to the field of accessory assembly technology, specifically to a limiting and fitting device for assembling a tablet computer display screen. Background Art

[0002] The tablet computer display is a crucial component of a tablet computer, directly impacting the user's visual experience and usability. Based on liquid crystal display technology, the liquid crystal is sandwiched between two parallel transparent electrode glass plates. By adjusting the electric field strength, the arrangement of liquid crystal molecules is controlled, thereby controlling the degree of light transmission and achieving pixel color changes.

[0003] Tablet PC display assembly equipment is specifically designed for assembling and integrating displays with other components of a tablet PC. This equipment typically includes a series of sophisticated mechanical and electronic devices to ensure the display can be accurately and securely mounted onto the tablet PC body.

[0004] Currently, in the use of display assembly equipment, the adhesive used to bond the display screen and the tablet shell often requires operators to use alignment equipment to apply the adhesive into the tablet shell during installation. This can lead to misalignment, making it impossible for existing display assembly equipment to achieve precise alignment and adhesive application and display assembly. Therefore, an improved device is needed to address these issues. Summary of the Invention

[0005] To address the problems in the prior art, the present invention provides a limiting and mating device for assembling a tablet computer display screen.

[0006] The technical solution adopted by this invention to solve its technical problem is: a tablet computer display screen assembly limiting and mating device, including a guiding mechanism, an outer display screen is placed at the top of the guide mechanism, and a tablet shell is placed at the bottom of the guide mechanism. The guide mechanism includes a positioning component and a mating component. The positioning component is fixedly installed at the top of the mating component. The positioning component includes a displacement device and a support device. The displacement device is slidably inserted into the inside of the support device. The support device includes a lead screw, a drive motor, and an extension bracket. The drive motor is fixedly installed at the top of the rear end of the extension bracket. The lead screw is fixedly installed at the center of the front end of the drive motor. Two base frames are fixedly installed near the rear end of the extension bracket close to the lead screw. A winding wheel is rotatably installed at the front end of the base frame. A gear is fixedly installed at the center of the opposite side end of the winding wheel. A connecting rope is fixedly installed on the outer ring of the winding wheel. A first placement tray is fixedly installed at the bottom of the extension bracket.

[0007] Specifically, the displacement device includes a cross frame and a positioning side plate. The positioning side plate is fixedly installed at both ends of the cross frame. Two first hydraulic cylinders are fixedly installed at the top of the cross frame. An electric suction cup is fixedly installed at the bottom of the first hydraulic cylinder. Two racks are fixedly installed at the bottom of the inside of the cross frame.

[0008] The crossbar slides inside the extension bracket, and the positioning side plate can fit against the outside of the extension bracket, so that the crossbar can reciprocate against the inside of the extension bracket.

[0009] Specifically, the mating components include an alignment device and an auxiliary device, with the alignment device fixedly installed on both sides of the top of the auxiliary device.

[0010] Specifically, the alignment device includes a first spring, an alignment cavity, and an accumulation cavity. Two first springs are provided and are installed on the side end of the alignment cavity. The accumulation cavity is symmetrically and fixedly installed at the top of the alignment cavity. A shaped air cylinder is fixedly installed at the front end of the accumulation cavity. A first piston rod is slidably installed inside the bottom end of the shaped air cylinder. A second piston rod is slidably installed inside the top end of the shaped air cylinder. Two sealing rubber plugs are fixedly installed at the top end of the second piston rod. Two supporting partitions are fixedly installed inside the accumulation cavity. Two second springs are fixedly installed between the supporting partitions and the sealing rubber plugs. A discharge hole is opened at the bottom end of the accumulation cavity near the first spring. A guide rod is fixedly installed at the top end of the supporting partition.

[0011] When the accumulation chamber moves, it can drive the first piston rod to fit against the alignment plate, so that the second piston rod can move upward from the inside of the irregularly shaped air cylinder, and then the sealing plug can be moved out from the inside of the discharge hole.

[0012] Specifically, the auxiliary device includes a base and an extended side frame. The extended side frame is symmetrically fixedly installed on both sides of the base. Wire guide wheels are equidistantly rotatably installed on the top front end of the base. Two alignment plates are fixedly installed on the top front end of the base, and the alignment plates are located between the wire guide wheels.

[0013] By having a connecting rope wrapped around the outer ring of multiple guide wheels, the direction of movement of the connecting rope can be changed, thus allowing the accumulation cavity to move in a straight line.

[0014] Specifically, the crossbar is slidably inserted into the inner top of the extension bracket, the inner center thread of the crossbar is threaded onto the lead screw, the end of the connecting rope away from the winding wheel is connected to the end of the alignment cavity near the shaped air cylinder, the end of the first spring away from the accumulation cavity is connected to the end of the extension side frame away from the base, the bottom end of the alignment cavity is slidably inserted into the top of the base, and the extension bracket is fixedly installed at the top rear end of the base.

[0015] Specifically, the rack and gear are vertically aligned, the top of the extension bracket has an movable groove, the interior of the shaped air cylinder is hollow, and a sealed cavity is formed between the first piston rod, the shaped air cylinder and the second piston rod.

[0016] Specifically, a side plate is symmetrically fixedly installed at one end of the alignment cavity near the first spring, and the side plate is connected to the first spring. A key is fixedly installed at the bottom end of the side plate, and a slot is opened at the top of the extension side frame and the base. A wing plate is fixedly installed at the front of the side end of the alignment cavity near the first spring, and the wing plate is connected to the connecting rope.

[0017] Specifically, the first piston rod is horizontally aligned with the alignment plate, the flat shell is placed at the top center of the base, the outer display screen is placed on the top of the first placement plate, the alignment cavity is hollow inside, and a through hole is opened at the bottom of the alignment cavity, and the alignment cavity is interconnected with the discharge hole.

[0018] Specifically, the base also includes a second hydraulic cylinder, an extended rear frame, and a second placement plate. The extended rear frame is fixedly installed at the rear end of the base, the second hydraulic cylinder is symmetrically fixedly installed inside the rear end of the extended rear frame, and the second placement plate is fixedly installed at the front end of the second hydraulic cylinder.

[0019] The beneficial effects of this invention are:

[0020] First, this invention uses a lead screw that rotates to move a crossbeam, allowing a rack to pass over the top of a gear and pull a winding wheel to move the connecting rope. This causes the accumulation cavities to move towards each other and fit together. Simultaneously, when the first piston rod contacts the alignment plate, the adhesive inside the accumulation cavity can be discharged from the alignment cavity onto the inner ring frame of the flat shell, allowing the adhesive to fall precisely into the designated position and complete the precise alignment and application of the adhesive.

[0021] Second, when the present invention is in use, when the rack passes through the gear, the gear will lose its restraining force, so the accumulation cavity can be reset by the first spring. Subsequently, when the crossbar continues to move to the front end, the electric suction cup can carry the display screen to the front end to align with the tablet shell. Furthermore, the first hydraulic cylinder can be activated to drive the electric suction cup to move downward, so that the display screen and the tablet shell can get closer until the glue on the top frame of the display screen and the tablet shell makes contact, thus completing the alignment and assembly of the display screen and the tablet shell. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and examples.

[0023] Figure 1 This is a three-dimensional structural diagram of the main body from a frontal perspective in this invention;

[0024] Figure 2 This is a three-dimensional structural diagram of the main body from the rear view in this invention;

[0025] Figure 3 This is a three-dimensional structural diagram of the guide mechanism in this invention from a frontal perspective;

[0026] Figure 4 This is a three-dimensional structural diagram of the positioning component from a frontal view in this invention;

[0027] Figure 5 This is a three-dimensional structural diagram of the displacement device from the front view in this invention;

[0028] Figure 6 This is a three-dimensional structural diagram of the support device from the front view in this invention;

[0029] Figure 7 This is a three-dimensional structural diagram of the mating components from a frontal perspective in this invention;

[0030] Figure 8 This is a partial cross-sectional schematic diagram of the alignment device in this invention;

[0031] Figure 9 This is a three-dimensional structural diagram of the auxiliary device from a frontal perspective in this invention;

[0032] Figure 10 This is a frontal perspective three-dimensional structural diagram of the second embodiment of the base in this invention.

[0033] In the diagram: 1-Guiding mechanism, 2-Plate shell, 3-Display screen, 4-Positioning component, 5-Matching component, 6-Displacement device, 7-Supporting device, 8-First hydraulic cylinder, 9-Rack, 10-Cross frame, 11-Positioning side plate, 12-Electric suction cup, 13-Gear, 14-Rewinding wheel, 15-Connecting rope, 16-Extension bracket, 17-First placement tray, 18-Base frame, 19-Drive motor, 20-Lead screw, 21-Alignment device 22-Auxiliary device, 23-First piston rod, 24-Irregularly shaped air cylinder, 25-Second piston rod, 26-Sealed rubber plug, 27-Discharge hole, 28-Alignment cavity, 29-First spring, 30-Accumulation cavity, 31-Guide rod, 32-Second spring, 33-Support partition, 34-Base, 35-Extended side frame, 36-Guide wheel, 37-Alignment plate, 38-Second hydraulic cylinder, 39-Extended rear frame, 40-Second placement tray. Detailed Implementation

[0034] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0035] The invention will be further described below with reference to the accompanying drawings.

[0036] Example 1

[0037] like Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, a tablet computer display assembly and positioning device of the present invention includes a guide mechanism 1. A display screen 3 is placed at the top of the guide mechanism 1, and a tablet shell 2 is placed at the bottom of the guide mechanism 1. The guide mechanism 1 includes a positioning component 4 and a mating component 5. The positioning component 4 is fixedly installed at the top of the mating component 5. The positioning component 4 includes a displacement device 6 and a support device 7. The displacement device 6 is slidably inserted into the support device 7. The support device 7 includes a lead screw 20, a drive motor 19, and an extension bracket 16. The drive motor 19 is fixedly installed at the top of the rear end of the extension bracket 16. The lead screw 20 is fixedly installed at the center of the front end of the drive motor 19. Two base frames 18 are fixedly installed at the rear end of the extension bracket 16 near the lead screw 20. A winding wheel 14 is rotatably installed at the front end of the base frame 18. A gear 13 is fixedly installed at the center of the opposite side end of the winding wheel 14. A connecting rope 15 is fixedly installed on the outer ring of the winding wheel 14. A first placement plate 17 is fixedly installed at the bottom of the extension bracket 16.

[0038] like Figure 5 The displacement device 6 includes a cross frame 10 and a positioning side plate 11. The positioning side plate 11 is fixedly installed at both ends of the cross frame 10. Two first hydraulic cylinders 8 are fixedly installed at the top of the cross frame 10. An electric suction cup 12 is fixedly installed at the bottom of the first hydraulic cylinder 8. Two racks 9 are fixedly installed at the bottom of the inner side of the cross frame 10. The positioning side plate 11 is close to the side of the cross frame 10 and fits against the outer ring surface of the extension bracket 16, so that the cross frame 10 can be prevented from tilting when moving.

[0039] The crossbar 10 slides inside the extension bracket 16, and the positioning side plate 11 can fit against the outside of the extension bracket 16, so that the crossbar 10 can reciprocate within the extension bracket 16.

[0040] like Figure 7The mating component 5 includes an alignment device 21 and an auxiliary device 22. The alignment device 21 is fixedly installed on both sides of the top of the auxiliary device 22 and can support the alignment device 21 to work.

[0041] like Figure 8 The alignment device 21 includes a first spring 29, an alignment cavity 28, and an accumulation cavity 30. Two first springs 29 are provided and are mounted on the side end of the alignment cavity 28. The accumulation cavity 30 is symmetrically fixedly mounted on the top end of the alignment cavity 28. A shaped air cylinder 24 is fixedly mounted on the front end of the accumulation cavity 30. A first piston rod 23 is slidably mounted inside the bottom end of the shaped air cylinder 24, and a second piston rod 25 is slidably mounted inside the top end of the shaped air cylinder 24. Two sealing rubber plugs 26 are fixedly installed at the top of the accumulation cavity 30. Two supporting partitions 33 are fixedly installed inside the accumulation cavity 30. Two second springs 32 are fixedly installed between the supporting partitions 33 and the sealing rubber plugs 26. A discharge hole 27 is opened at the bottom of the accumulation cavity 30 near the first spring 29. A guide rod 31 is fixedly installed at the top of the supporting partitions 33. With the setting of the first spring 29, the alignment cavity 28 and the accumulation cavity 30 can be reset when the alignment cavity 28 loses the tension of the connecting rope 15.

[0042] When the accumulation cavity 30 moves, it can drive the first piston rod 23 to fit with the alignment plate 37, so that the second piston rod 25 can move upward from the inside of the irregular air cylinder 24, and then the sealing plug 26 can be moved out from the inside of the discharge hole 27.

[0043] like Figure 9 The auxiliary device 22 includes a base 34 and an extension side frame 35. The extension side frame 35 is symmetrically fixedly installed on both sides of the base 34. The top front end of the base 34 is equidistantly rotatably mounted with guide wheels 36. The top front end of the base 34 is fixedly mounted with two alignment plates 37, and the alignment plates 37 are located between the guide wheels 36. The connecting rope 15 is sequentially wrapped around the outer surface of multiple connecting ropes 15, so that the connecting rope 15 can pull the alignment cavity 28 to move in a straight line.

[0044] By having the connecting rope 15 wrapped around the outer ring of multiple guide wheels 36, the direction of movement of the connecting rope 15 can be changed, thereby allowing the storage cavity 30 to move in a straight line.

[0045] The crossbeam 10 is slidably inserted into the top of the extension bracket 16. The center thread of the crossbeam 10 is threaded onto the lead screw 20. The end of the connecting rope 15 away from the winding wheel 14 is connected to the end of the alignment cavity 28 near the shaped air cylinder 24. The end of the first spring 29 away from the accumulation cavity 30 is connected to the end of the extension side frame 35 away from the base 34. The bottom end of the alignment cavity 28 is slidably inserted into the top of the base 34. The extension bracket 16 is fixedly installed at the top rear end of the base 34. The rack 9 is vertically aligned with the gear 13. The top of the extension bracket 16 has a movable groove. The interior of the shaped air cylinder 24 is hollow. The first piston rod 23, the shaped air cylinder 24, and the second piston rod are also connected. A sealed cavity is formed between 25. A side plate is symmetrically fixedly installed on one end of the alignment cavity 28 near the first spring 29, and the side plate is connected to the first spring 29. A key is fixedly installed at the bottom of the side plate, and a slot is opened at the top of the extension side frame 35 and the base 34. A wing plate is fixedly installed at the front of the side end of the alignment cavity 28 near the first spring 29, and the wing plate is connected to the connecting rope 15. The first piston rod 23 is horizontally aligned with the alignment plate 37. The flat shell 2 is placed at the top center of the base 34. The display screen 3 is placed on the top of the first placement plate 17. The interior of the alignment cavity 28 is hollow, and a through hole is opened at the bottom of the alignment cavity 28. The alignment cavity 28 communicates with the discharge hole 27.

[0046] The working principle of Embodiment 1 is as follows: In use, the outer screen 3 is first placed on the top of the first placement plate 17, and then the flat shell 2 is placed on the top of the base 34. An L-shaped positioning frame is fixedly installed on the top of the base 34, so that the flat shell 2 can be restricted between the four L-shaped positioning frames to prevent the flat shell 2 from shifting again during placement. Then, the first hydraulic cylinder 8 can be started to drive the electric suction cup 12 to move downward to fit with the outer screen 3. Then, the electric suction cup 12 is started to adsorb the outer screen 3. Then, the first hydraulic cylinder 8 is started again to drive the electric suction cup 12 to reset upward until the electric suction cup 12 drives the outer screen 3 to disengage from the first placement plate 17, so that the outer screen 3 can be moved easily. Then, the drive motor 19 can be started to drive the lead screw 20 to rotate clockwise, so that the cross frame 10 can move towards the front end along the inside of the extension bracket 16. The extension bracket 16 has a movable groove inside, and the cross frame 10 is located inside the movable groove, so that the cross frame 10 can be moved in a straight line.

[0047] When the crossbeam 10 moves to the front end, it drives the rack 9 to pass the top of the gear 13, thereby driving the take-up wheel 14 to rotate. When the take-up wheel 14 rotates, the connecting rope 15 pulls the alignment cavity 28 to move away from the first spring 29. The side plate of the alignment cavity 28 near the bottom of the first spring 29 drives the locking key to move in the slots on the base 34 and the extension side frame 35, so that the alignment cavity 28 can be supported to move in a straight line. When the alignment cavity 28 moves to the limit position, it can be aligned with the frame at the top of the inner ring of the flat shell 2. At this time, the alignment cavity When the body 28 moves to its limit position, it can also drive the first piston rod 23 to contact the alignment plate 37. Through the restriction of the alignment plate 37, the first piston rod 23 can enter the interior of the irregular air cylinder 24, causing the second piston rod 25 to drive the sealing plug 26 to move upward, so that the sealing plug 26 can be pulled out from the interior of the discharge hole 27. At this time, the glue inside the accumulation cavity 30 can flow into the interior of the alignment cavity 28 through the discharge hole 27. At the same time, the alignment cavity 28 has a through hole at the bottom, so that the alignment cavity 28 can drip glue onto the frame at the top of the inner ring of the flat shell 2.

[0048] Subsequently, the lead screw 20 continuously drives the crossbeam 10 to move forward, allowing the rack 9 to pass over the top of the gear 13. At this point, the gear 13 loses its meshing force, and the elasticity of the first spring 29 causes the alignment cavity 28 to reset, thus disengaging the first piston rod 23 from the alignment plate 37. The elasticity of the second spring 32 causes the guide wheel 36 to reset downwards, sliding the sealing plug 26 onto the guide rod 31. This ensures that the sealing plug 26 moves up and down in a straight line, improving the alignment accuracy between the sealing plug 26 and the discharge hole 27. When the sealing plug 26 resets downwards, it can... The internal sealing prevents excessive glue from entering the alignment cavity 28. At the same time, the sealing plug 26 will also drive the second piston rod 25 into the shaped air cylinder 24, causing the first piston rod 23 to reset, so that the first piston rod 23 can contact the alignment plate 37 again. Then, when the crossbeam 10 moves to the extreme position at the front end, the electric suction cup 12 can drive the display screen 3 to be vertically aligned with the flat shell 2. At this time, the first hydraulic cylinder 8 can be started to drive the electric suction cup 12 to move downward, causing the display screen 3 to move closer to the flat shell 2. Then the connecting end inside the display screen 3 is inserted into the flat shell 2.

[0049] Subsequently, the first hydraulic cylinder 8 is continuously started, driving the electric suction cup 12 to press the outer display screen 3 into the interior of the tablet shell 2, so that the outer display screen 3 contacts the frame at the top inside the tablet shell 2, allowing the adhesive to fully contact the outer display screen 3, and completing the alignment and assembly of the outer display screen 3 and the tablet shell 2.

[0050] Subsequently, when the adhesive between the outer display screen 3 and the tablet shell 2 is completely dry, the electric suction cup 12 can be turned off, allowing the outer display screen 3 to be released. At this time, when the first hydraulic cylinder 8 is activated, it can drive the electric suction cup 12 to reset upwards. Then, the tablet shell 2 can be moved off the top of the base 34, and a new tablet shell 2 can be placed on the top of the base 34. The drive motor 19 is turned on, driving the lead screw 20 to rotate counterclockwise, driving the crossbar 10 to reset to the rear end. Subsequently, when the crossbar 10 drives the rack 9 past the top of the gear 13, the above steps can be repeated to align the alignment cavity 28 with the top of the new tablet shell 2, and apply adhesive to the tablet shell 2. Thus, the crossbar 10 can move the alignment cavity 28 onto the tablet shell 2 during reciprocating movement, completing the double-layer adhesive coating process, improving the adhesion between the tablet shell 2 and the outer display screen 3, and completing the work.

[0051] Example 2

[0052] Based on Example 1, such as Figure 10 As shown, the base 34 also includes a second hydraulic cylinder 38, an extended rear frame 39, and a second placement plate 40. The extended rear frame 39 is fixedly installed at the rear end of the base 34, the second hydraulic cylinder 38 is symmetrically fixedly installed inside the rear end of the extended rear frame 39, and the second placement plate 40 is fixedly installed at the front end of the second hydraulic cylinder 38.

[0053] In implementing this embodiment, the flat panel housing 2 can be placed inside the top of the second placement tray 40, and then the second hydraulic cylinder 38 can be activated to move the second placement tray 40 towards the top of the base 34, thus facilitating the movement of the flat panel housing 2 to the top of the base 34. Simultaneously, when the flat panel housing 2 and the display screen 3 are assembled, the second hydraulic cylinder 38 can be activated again to move the second placement tray 40 towards the end closer to the extension frame 39, thereby allowing the second placement tray 40 to move the flat panel housing 2 and the display screen 3 from the top of the base 34, making it easier for the user to remove the flat panel housing 2. During use, the L-shaped positioning bracket on the top of the base 34 is positioned away from the extension frame 39, ensuring that when the second placement tray 40 moves to its limit position away from the extension frame 39, it secures the flat panel housing 2 to the L-shaped positioning bracket on the top of the base 34, preventing further displacement of the flat panel housing 2 and completing the operation.

[0054] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A tablet computer display screen assembly limiting matching device, comprising a guide mechanism (1), a display outer screen (3) is placed at the top end of the guide mechanism (1), and a tablet housing (2) is placed at the bottom end of the guide mechanism (1), characterized in that: The guide mechanism (1) comprises a positioning component (4) and a matching component (5), wherein the positioning component (4) is fixedly mounted on the top of the matching component (5), the positioning component (4) comprises a displacement device (6) and a support device (7), wherein the displacement device (6) is slidably inserted into the interior of the support device (7), and the support device (7) comprises a screw rod (20), a drive motor (19) and an extension bracket (16), wherein the drive motor (19) is fixedly mounted on the top of the rear end of the extension bracket (16), and the screw rod (20) is fixedly mounted on the front end center of the drive motor (19), and two base frames (18) are fixedly mounted on the inner rear end of the extension bracket (16) close to the screw rod (20), and a winding wheel (14) is rotatably mounted on the front end of the base frame (18), and a gear (13) is fixedly mounted on the center of the opposite side end of the winding wheel (14), and a connecting rope (15) is fixedly mounted on the outer ring of the winding wheel (14), and a first placement plate (17) is fixedly mounted on the inner bottom end of the extension bracket (16); The matching component (5) comprises a positioning device (21) and an auxiliary device (22), wherein the positioning device (21) is fixedly mounted on both sides of the top end of the auxiliary device (22); The alignment device (21) comprises a first spring (29), an alignment cavity (28) and a storage cavity (30), wherein two first springs (29) are provided and the first springs (29) are mounted on the side ends of the alignment cavity (28), the storage cavity (30) is symmetrically fixedly mounted on the top end of the alignment cavity (28), a special-shaped gas cylinder (24) is fixedly mounted on the front end of the storage cavity (30), a first piston rod (23) is slidably mounted inside the bottom end of the special-shaped gas cylinder (24), and the special-shaped gas cylinder (24) is fixedly mounted on the front end of the storage cavity (30). ) is slidably mounted inside the top of the second piston rod (25), two sealed rubber plugs (26) are fixedly mounted on the top of the second piston rod (25), two supporting baffles (33) are fixedly mounted inside the storage cavity (30), two second springs (32) are fixedly mounted between the supporting baffles (33) and the sealed rubber plugs (26), a discharge hole (27) is provided at the bottom of the storage cavity (30) near the first spring (29), and a guide rod (31) is fixedly mounted on the top of the supporting baffle (33); When the storage cavity (30) moves, it can drive the first piston rod (23) to fit with the alignment plate (37), so that the second piston rod (25) can move upward from the inside of the special-shaped gas cylinder (24), thereby allowing the sealing rubber plug (26) to move out from the inside of the discharge hole (27); The auxiliary device (22) comprises a base (34) and an extended side frame (35), wherein the extended side frame (35) is symmetrically fixedly mounted on two sides of the base (34), a guide wheel (36) is equidistantly rotatably mounted on the top front end of the base (34), and two alignment plates (37) are fixedly mounted on the top front end of the base (34), and the alignment plates (37) are located between the guide wheels (36); The connecting rope (15) passes through the outer rings of the plurality of guide wheels (36), so that the moving direction of the connecting rope (15) changes, thereby enabling the storage chamber (30) to move in a straight line.

2. A tablet computer display screen assembly limiting matching device according to claim 1, characterized in that: The displacement device (6) comprises a cross frame (10) and a positioning side plate (11), wherein the positioning side plate (11) is fixedly mounted at both ends of the cross frame (10), two first hydraulic cylinders (8) are fixedly mounted on the top end of the cross frame (10), an electric suction cup (12) is fixedly mounted on the bottom end of the first hydraulic cylinder (8), and two racks (9) are fixedly mounted on the inner bottom end of the cross frame (10); The cross frame (10) can slide inside the extension bracket (16), and the positioning side plate (11) can fit the outer side of the extension bracket (16), so that the cross frame (10) can reciprocate in contact with the inside of the extension bracket (16).

3. A tablet computer display screen assembly limiting matching device according to claim 2, characterized in that: The cross frame (10) is slidably inserted into the inner top end of the extension bracket (16), the inner center thread of the cross frame (10) is sleeved on the screw rod (20), the end of the connecting rope (15) away from the winding wheel (14) is connected to the end of the alignment cavity (28) close to the special-shaped air cylinder (24), the end of the first spring (29) away from the storage cavity (30) is connected to the end of the extension side frame (35) away from the base (34), the bottom end of the alignment cavity (28) is slidably inserted into the top of the base (34), and the extension bracket (16) is fixedly installed at the top rear end of the base (34).

4. The tablet computer display screen assembly limiting matching device according to claim 3, characterized in that: The rack (9) is vertically aligned with the gear (13); a movable groove is provided at the top end of the extension bracket (16); the interior of the special-shaped gas cylinder (24) is hollow; and a closed cavity is formed between the first piston rod (23), the special-shaped gas cylinder (24) and the second piston rod (25).

5. The tablet computer display screen assembly limiting matching device according to claim 4, characterized in that: A side plate is symmetrically fixedly mounted on one end of the alignment cavity (28) close to the first spring (29), and the side plate is connected to the first spring (29). A key is fixedly mounted on the bottom end of the side plate, and a slot is provided on the top end of the extended side frame (35) and the base (34). A wing plate is fixedly mounted in front of the side end of the alignment cavity (28) close to the first spring (29), and the wing plate is connected to the connecting rope (15).

6. The tablet computer display screen assembly limiting matching device according to claim 5, characterized in that: The first piston rod (23) is horizontally aligned with the alignment plate (37), the flat panel housing (2) is placed at the top center of the base (34), the display outer screen (3) is placed on the top of the first placement plate (17), the interior of the alignment cavity (28) is hollow, and a through hole is provided at the bottom end of the alignment cavity (28), and the alignment cavity (28) is in communication with the discharge hole (27).

7. The tablet computer display screen assembly limiting matching device according to claim 6, characterized in that: The base (34) further comprises a second hydraulic cylinder (38), an extended rear frame (39) and a second placement plate (40); the extended rear frame (39) is fixedly mounted at the rear end of the base (34); the second hydraulic cylinder (38) is symmetrically fixedly mounted at the inner rear end of the extended rear frame (39); and the second placement plate (40) is fixedly mounted at the front end of the second hydraulic cylinder (38).

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