Cover glass precision cutting apparatus and method

Abstract

The present application relates to the technical field of cover plate glass processing, and provides a cover plate glass precise cutting processing device and method, which is designed with a cutting device, a chemical soaking device, a plurality of operation mechanical hands, a stacking suction disc, a multilayer cover plate glass assembly, an air pump, a chemical soaking tank and other devices, and automatically stacks the glass by using the mechanical hand to complete an efficient chemical soaking process. Through the stacking and batch processing of the multilayer cover plate glass assembly, the chemical soaking time of the cover plate glass is reduced, and the processing effect is improved. Through the precise cutting of water guide laser cutting and the efficient chemical soaking processing of the multilayer cover plate glass assembly, the error of the glass in the cutting process is effectively reduced, the problems of broken edges, broken pieces and other defects of the glass in the turnover process are solved, and the efficiency and precision of the cover plate glass cutting processing are improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of cover plate glass processing, in particular to a cover plate glass precise cutting processing device and method. BACKGROUND

[0002] Cover plate glass is a glass product processed and treated for special purposes, usually having a specific size and thickness, and is often used to cover, protect or decorate various surfaces. The cover plate glass of a mobile phone screen is a layer of glass material covering the display of the mobile phone, used to protect the display and provide the surface for user interaction with the device, which is specially treated and has advantages such as scratch resistance, impact resistance, high transparency, touch sensitivity, etc.

[0003] During the processing of cover plate glass, many processing procedures are required, such as edge cutting, edge breaking, chamfering, edge grinding, etc. Precise cutting of the glass raw material according to the specific requirements and size of the use scene is an important step. The edges of the cut cover plate glass may have burrs or corners, and the edges of the cut cover plate glass are relatively fragile and have the risk of breaking, so post-processing is required for the cut cover plate glass.

[0004] The common post-processing methods for the cut cover plate glass include edge polishing and chemical soaking. The edge polishing process mostly includes rough polishing, using relatively coarse abrasive to preliminarily polish the edges of the cover plate glass to remove burrs and sharp corners, making the edges smooth. Next, the medium polishing is performed, using abrasive of appropriate particle size to further polish the edges to make them more flat and uniform. Finally, fine polishing is performed, using finer abrasive for the final polishing to achieve the required smoothness and texture. Improper control of polishing action or improper selection of abrasive during edge polishing may cause scratches, damage or uneven polishing effect on the surface of the cover plate glass. Chemical soaking has certain advantages compared to edge polishing for cover plate glass with high quality requirements.

[0005] During the chemical soaking process, a specific chemical solution is used to react with the glass surface to form a uniform and dense protective film on the glass surface. This film can fill the microscopic pores and micro-defects on the glass surface, making the surface smoother. At the same time, some ions on the glass surface will exchange with the ions in the solution, changing the chemical composition and structure of the glass surface and improving its hardness and wear resistance. For the cut cover plate glass, burrs and corners are prone to occur at the cutting site, i.e. the edges of the cover plate glass. Therefore, only the edges of the cover plate glass need to be chemically soaked. The existing chemical soaking process mostly places the entire glass in a soaking tank, and after soaking is completed, cleaning, drying and other procedures are performed, which is a complicated process with serious waste. Moreover, batch operation cannot be achieved, and the work efficiency is low. SUMMARY

[0006] In order to solve the problems in the background art, the present application provides a cover plate glass precise cutting processing device, which comprises a cutting device, a chemical soaking device and a plurality of operation manipulators, is provided with a stacking suction disc, the stacking suction disc comprises a plurality of suction nozzles, the suction nozzles are composed of upper and lower suction nozzles which are in communication with each other, the adjacent suction nozzles are communicated through a guide connecting pipe, the guide connecting pipe is provided with a shuttle-shaped cavity, the shuttle-shaped cavity is made of elastic material and is provided with a gas passage opening communicated with the guide connecting pipes on both sides, a partition ball is arranged in the shuttle-shaped cavity, the diameter of the partition ball is greater than that of the gas passage opening of the shuttle-shaped cavity, a multilayer cover plate glass assembly is composed of a plurality of cover plate glass sheets which are alternately connected, the upper and lower suction nozzles of each stacking suction disc are connected with one cover plate glass sheet respectively, a gas pump is connected with the guide connecting pipes of the stacking suction disc through a gas pipe and is used for air suction, and a chemical soaking tank is provided with a glass dissolving liquid, and the edges of the multilayer cover plate glass assembly are subjected to chemical soaking treatment through the glass dissolving liquid.

[0007] In a preferred scheme, the suction nozzles are provided with three, and the three suction nozzles are arranged in a triangular shape.

[0008] In a preferred scheme, the upper and lower suction nozzles are in the shape of a horn.

[0009] In a preferred scheme, the partition ball is a glass ball or a steel ball.

[0010] In a preferred scheme, the multilayer cover plate glass assembly comprises 2-15 cover plate glass sheets.

[0011] In a preferred scheme, the operation manipulator comprises:

[0012] A suction disc clamping manipulator is provided with a clamping jaw for clamping the shuttle-shaped cavity;

[0013] A stacking manipulator is provided with a clamping mechanism for clamping the cover plate glass sheet and the stacking suction disc;

[0014] A chemical soaking manipulator is provided with a clamping jaw for clamping and overturning the multilayer cover plate glass assembly.

[0015] In a preferred scheme, the chemical soaking device further comprises a stacking workbench for assembling the cover plate glass sheet and the stacking suction disc.

[0016] In a preferred scheme, the cutting device comprises a cutting table and a water guide laser cutting device provided on the side of the cutting table, an upper sheet manipulator, a lower sheet manipulator, a waste treatment manipulator, and the upper sheet manipulator and the lower sheet manipulator are installed with vacuum suction discs.

[0017] The present application also provides a cover plate glass precise cutting processing method, which comprises the following steps:

[0018] S1, the upper piece manipulator adsorbs the cover plate glass raw material piece from the cover plate glass raw material bag through the vacuum chuck, and transports to the cutting table. After the sensor of the cutting table receives the cover plate glass piece placement signal, the conveying belt is started to transport the cover plate glass piece to the fixed baffle of the water guide laser cutting device. The cover plate glass piece is positioned by laser to reach the specified cutting position;

[0019] S2, the water guide laser cutting device cuts the cover plate glass raw material piece with high precision, cuts out the cover plate glass piece, and triggers the carrying instruction after cutting is completed. The lower piece manipulator adsorbs the cover plate glass piece to the conveying belt; after placement is completed, the cleaning instruction is triggered, and the waste treatment manipulator pushes the waste glass generated in cutting to the waste recycling box;

[0020] S3, the cover plate glass piece is transported to the end of the conveying belt to trigger the termination limit, and the multi-layer cover plate glass assembly is stacked; the specific steps are as follows:

[0021] S31, the stacking manipulator transports the cover plate glass piece to the stacking workbench;

[0022] S32, the stacking manipulator clamps the stacking chuck above the cover plate glass piece on the stacking workbench, so that the lower suction nozzle contacts the cover plate glass piece;

[0023] S33, the stacking manipulator clamps another cover plate glass piece above the stacking chuck, so that the upper suction nozzle contacts the cover plate glass piece;

[0024] S34, the clamping mechanism of the chuck clamping manipulator clamps the shuttle-shaped cavity of the stacking chuck, so that the partition ball deviates from the gas passage opening in the shuttle-shaped cavity;

[0025] S35, the guide connecting pipe of the stacking chuck is connected to the air pump through the air pipe. The air pump extracts the gas between the suction nozzle and the cover plate glass piece, so that the upper suction nozzle and the lower suction nozzle are tightly connected with the cover plate glass pieces contacted respectively;

[0026] S36, the chuck clamping manipulator releases the clamping of the shuttle-shaped cavity. The partition ball in the shuttle-shaped cavity blocks the gas passage opening in the shuttle-shaped cavity under negative pressure, so that the suction nozzle continuously adsorbs the cover plate glass piece;

[0027] S37, disconnect the air pump and the guide connecting pipe;

[0028] S38, repeat steps S32-S37 to assemble a proper number of cover plate glass pieces and stacking chucks into a multi-layer cover plate glass assembly;

[0029] S4, use the chemical soaking manipulator to clamp the multi-layer cover plate glass assembly, vertically immerse one side edge of the multi-layer cover plate glass assembly into the sol liquid of the chemical soaking tank, and immerse the edge of the cover plate glass assembly for 3-5 minutes;

[0030] S5, the chemical soaking mechanical hand lifts the cover plate glass assembly and stands still for 30s-60s, so that the residual liquidus is completely dropped;

[0031] S6, the chemical soaking mechanical hand clamps the cover plate glass assembly after rotating 90°, and repeats steps S4-S5, so that all four edges of the cover plate glass assembly complete chemical soaking;

[0032] S7, the chemical soaking mechanical hand clamps the cover plate glass assembly after chemical soaking to the storage area, and disassembles the cover plate glass assembly; the specific steps are as follows:

[0033] S71, the clamping mechanism of the suction cup clamping mechanical hand clamps the shuttle-shaped cavity of the uppermost stacked suction cup of the cover plate glass assembly, so that the partition ball in the shuttle-shaped cavity deviates from the gas passage opening in the shuttle-shaped cavity;

[0034] S72, air enters the shuttle-shaped cavity from the guide pipe and the suction nozzle, so that the cover plate glass sheet adsorbed by the upper and lower suction nozzles is separated from the adsorption;

[0035] S73, the stacking mechanical hand sequentially transports the uppermost cover plate glass sheet, the stacked suction cup and the second uppermost cover plate glass sheet from top to bottom to the designated storage position.

[0036] Further, in step S4: the immersion depth of the side edge of the multi-layer cover plate glass assembly vertically immersed in the liquidus of the chemical soaking tank is 8mm-10mm, and the liquidus is a solution of concentrated hydrochloric acid, concentrated nitric acid and hydrogen fluoride in a ratio of 4:12:1.

[0037] The beneficial effects achieved by the present application are:

[0038] The present application designs a multi-layer cover plate glass assembly composed of stacked suction cups and cover plate glass sheets, and uses a mechanical hand to automatically stack glass and complete an efficient chemical soaking process. Through the stacking and batch processing of the multi-layer cover plate glass assembly, the chemical soaking time of the cover plate glass is reduced, and the processing effect is improved. The present application realizes precise cutting by water guide laser cutting and efficient chemical soaking treatment of the multi-layer cover plate glass assembly, effectively reduces the error of glass in the cutting process, solves the problems of broken edges, broken pieces and other defects caused by glass in the turnover process, and improves the efficiency and precision of cover plate glass cutting processing. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1 is a cover plate glass precise cutting treatment device structure schematic diagram of the present application;

[0040] Figure 2 is a water guide laser cutting device structure schematic diagram;

[0041] Figure 3 is a first perspective view structure schematic diagram of the stacked suction cup;

[0042] Figure 4 is a second perspective view of the stacking chuck;

[0043] Figure 5 is a schematic view of the shuttle-shaped structure of the connecting pipe;

[0044] Figure 6 is a schematic view of the cross-sectional structure of Figure 5

[0045] Figure 7 is a schematic view of the cross-sectional structure of the shuttle-shaped cavity in three states;

[0046] Figure 8 is a schematic view of the structure of the multilayer cover glass assembly in Example 1.

[0047] Reference numerals in the drawings:

[0048] 1, upper sheet mechanical hand; 2, water guide laser cutting device; 3, cutting table; 4, waste treatment mechanical hand; 5, lower sheet mechanical hand; 6, chucking mechanical hand; 7, cover glass sheet; 71, cover glass sheet 1; 72, cover glass sheet 2; 8, stacking mechanical hand; 9, stacking chuck; 91, suction nozzle; 911, upper suction nozzle; 912, lower suction nozzle; 92, connecting pipe; 93, shuttle-shaped cavity; 94, partition ball; 10, stacking workbench; 11, chemical soaking mechanical hand; 12, chemical soaking tank; 13, multilayer cover glass assembly. DETAILED DESCRIPTION

[0049] The technical solutions in the present application will be described clearly and completely below in combination with the drawings in the present application. In addition, the forms of each structure described in the following embodiments are only examples, and the present application is not limited to each structure described in the following embodiments. All other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present application.

[0050] With reference to Figures 1-8 , the cover glass precision cutting treatment device of the present application comprises a cutting device, a chemical soaking device, and several work mechanical hands. The cutting device comprises a cutting table 3 and a water guide laser cutting device 2 arranged on the side of the cutting table 3, an upper sheet mechanical hand 1, a lower sheet mechanical hand 5, and a waste treatment mechanical hand 4. The upper sheet mechanical hand 1 and the lower sheet mechanical hand 5 are installed with vacuum chucks. The chemical soaking device comprises a stacking workbench 10 for assembling the cover glass sheet 7 and the stacking chuck 9. The work mechanical hands comprise a chucking mechanical hand 6 provided with a clamping jaw for clamping the shuttle-shaped cavity 93, a stacking mechanical hand 8 provided with a clamping mechanism for clamping the cover glass sheet 7 and the stacking chuck 9, and a chemical soaking mechanical hand 11 provided with a clamping jaw for clamping and turning the multilayer cover glass assembly 13.

[0051] ​It is also provided with a stacking suction cup 9, the stacking suction cup 9 comprises a plurality of suction nozzles 91, the suction nozzles 91 are preferably provided with three, and the three suction nozzles 91 are arranged in a triangular shape. The suction nozzles 91 are composed of upper suction nozzles 911 and lower suction nozzles 912 that are in communication with each other; the upper suction nozzles 911 and the lower suction nozzles 912 are preferably in the shape of a horn. Adjacent suction nozzles 91 are in communication through a guide connecting pipe 92; the guide connecting pipe 92 is provided with a shuttle-shaped cavity 93 made of elastic material, which is provided with a gas passage opening in communication with the guide connecting pipes 92 on both sides; the shuttle-shaped cavity 93 is provided with a partition ball 94, and the diameter of the partition ball 94 is greater than that of the gas passage opening of the shuttle-shaped cavity 93; the partition ball 94 is a glass ball or a steel ball, which can play a good partitioning role. The multilayer cover plate glass assembly 13 is composed of a plurality of cover plate glass pieces 7 connected alternately, and the multilayer cover plate glass assembly 13 preferably contains 2-15 cover plate glass pieces 7; the upper suction nozzles 911 and the lower suction nozzles 912 of each stacking suction cup 9 are respectively connected to one cover plate glass piece 7; a gas pump is connected to the guide connecting pipe 92 of the stacking suction cup 9 through a gas pipe for air suction; a chemical soaking tank 12 is provided with a glass dissolving liquid, and the edges of the multilayer cover plate glass assembly 13 are chemically soaked in the glass dissolving liquid.

[0052] Embodiment 1, the following will introduce the cover plate glass precise cutting processing method through a specific implementation example, which is performed according to the following steps:

[0053] S1, the upper piece mechanical hand 1 absorbs the cover plate glass raw material piece from the cover plate glass raw material bag through the vacuum suction cup, and transports it to the cutting table 3; after the sensor of the cutting table 3 receives the cover plate glass piece 7 placement signal, the conveying belt is started to transport the cover plate glass piece 7 to the fixed baffle of the water guide laser cutting device 2, and the cover plate glass piece 7 is positioned by laser to reach the specified cutting position;

[0054] S2, the water guide laser cutting device 2 cuts the cover plate glass raw material piece with high precision to cut out the cover plate glass piece 7; after the cutting is completed, the carrying instruction is triggered, and the lower piece mechanical hand 5 absorbs the cover plate glass piece 7 to the conveying belt; after the placement is completed, the cleaning instruction is triggered, and the waste treatment mechanical hand 4 pushes the waste glass generated in the cutting to the waste recycling box;

[0055] S3, the cover glass sheet 7 is transported to the end of the conveying belt to trigger the end limit, and the multi-layer cover glass assembly 13 is stacked; the specific steps are as follows: S31, the stacking manipulator 8 transports the cover glass sheet one 71 to the stacking workbench 10; S32, the stacking manipulator 8 clamps the stacking chuck 9 and places it above the cover glass sheet one 71 on the stacking workbench 10, so that the lower suction nozzle 912 is in contact with the cover glass sheet 7; S33, the stacking manipulator 8 clamps the cover glass sheet two 72 and places it above the stacking chuck 9, so that the upper suction nozzle 911 is in contact with the cover glass sheet two 72; S34, the clamping mechanism of the chuck clamping manipulator 6 clamps the shuttle-shaped cavity 93 of the stacking chuck 9, so that the partition ball 94 deviates from the gas passage opening in the shuttle-shaped cavity 93; S35, the guide connecting pipe 92 of the stacking chuck 9 is connected to the air pump through the air pipe, and the air pump extracts the gas between the suction nozzle 91 and the cover glass sheet 7, so that the upper suction nozzle 911 and the lower suction nozzle 912 are tightly connected with the cover glass sheet 7 contacted respectively; S36, the chuck clamping manipulator 6 releases the clamping of the shuttle-shaped cavity 93, and the partition ball 94 in the shuttle-shaped cavity 93 blocks the gas passage opening in the shuttle-shaped cavity 93 under negative pressure, so that the suction nozzle 91 continuously adsorbs the cover glass sheet 7; S37, disconnect the air pump and the guide connecting pipe 92; see Figure 7 the state A, state B, state C change process. S38, repeat steps S32-S37, assemble a proper number of cover glass sheets 7 and stacking chucks 9 into a multi-layer cover glass assembly 13.

[0056] S4, use the chemical soaking manipulator 11 to clamp the multi-layer cover glass assembly 13, and vertically immerse one side edge of the multi-layer cover glass assembly 13 into the solution of the chemical soaking tank 12, so that the edge of the cover glass assembly is fully soaked for 3-5 minutes; wherein the immersion depth of one side edge of the multi-layer cover glass assembly 13 vertically immersed into the solution of the chemical soaking tank 12 is preferably 8mm-10mm, and the solution is a solution of concentrated hydrochloric acid, concentrated nitric acid and hydrofluoric acid with a mixing ratio of 4:12:1.

[0057] S5, the chemical soaking manipulator 11 lifts the cover glass assembly and stands still for 30s-60s, so that the residual solution completely drips off;

[0058] S6, the chemical soaking manipulator 11 clamps the cover glass assembly and rotates it by 90°, then repeats steps S4-S5, so that all four edges of the cover glass assembly complete chemical soaking;

[0059] S7, the chemical soaking mechanical hand 11 clamps the cover plate glass assembly after the chemical soaking is completed to a storage area, and the cover plate glass assembly is disassembled; the specific steps are as follows: S71, the clamping mechanism of the suction cup clamping mechanical hand 6 clamps the uppermost stacked suction cup 9 of the cover plate glass assembly, so that the internal partition ball 94 deviates from the gas passage opening in the shuttle-shaped cavity 93; S72, air enters the shuttle-shaped cavity 93 from the guide pipe 92 and the suction nozzle 91, so that the cover plate glass sheet 7 adsorbed by the upper suction nozzle 911 and the lower suction nozzle 912 is separated from the adsorption; see Figure 7 the change process of the state C, the state B and the state A. S73, the stacking mechanical hand 8 sequentially transports the uppermost cover plate glass sheet 7, the stacked suction cup 9 and the second uppermost cover plate glass sheet 7 to the designated storage position from top to bottom.

[0060] The above only describes the preferred embodiments of the present application and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A precision cutting and processing device for cover glass, comprising a cutting device, a chemical soaking device, and several robotic arms, characterized in that, Its settings include: A stacked suction cup (9) includes several suction nozzles (91), each suction nozzle (91) consisting of an upper suction nozzle (911) and a lower suction nozzle (912) that are interconnected. Adjacent suction nozzles (91) are connected by a guide tube (92). A spindle-shaped cavity (93) is provided on the guide tube (92), the spindle-shaped cavity (93) being made of an elastic material and having a gas passage opening that communicates with the guide tubes (92) on both sides. A partition ball (94) is provided inside the spindle-shaped cavity (93), the diameter of which is larger than the diameter of the gas passage opening of the spindle-shaped cavity (93). Multi-layer cover glass assembly (13), the multi-layer cover glass assembly (13) is composed of several cover glass sheets (7) connected alternately, and the upper suction nozzle (911) and lower suction nozzle (912) of each stacked suction cup (9) are respectively connected to a cover glass sheet (7); An air pump, which is connected to the guide pipe (92) of the stacked suction cups (9) via an air pipe, is used for suction. The chemical soaking tank (12) is filled with a glass-dissolving liquid, and the edges of the multi-layer cover glass assembly (13) are chemically soaked in the glass-dissolving liquid.

2. The precision cutting device for cover glass according to claim 1, characterized in that: The suction nozzle (91) is provided in three parts, and the three suction nozzles (91) are arranged in a triangle.

3. The precision cutting device for cover glass according to claim 1, characterized in that: The upper suction nozzle (911) and lower suction nozzle (912) are trumpet-shaped.

4. The precision cutting device for cover glass according to claim 1, characterized in that: The dividing ball (94) is a glass ball or a steel ball.

5. The precision cutting device for cover glass according to claim 1, characterized in that: The multilayer cover glass assembly (13) comprises 2-15 cover glass sheets (7).

6. The precision cutting device for cover glass according to claim 1, characterized in that, The robotic arms include: A suction cup gripper (6) is provided with grippers for clamping the spindle cavity (93); Stacking robot (8) is provided with a clamping mechanism for holding cover glass sheet (7) and stacking suction cup (9); A chemical soaking robot (11) is provided with grippers for holding and flipping the multilayer cover glass assembly (13).

7. The precision cutting device for cover glass according to claim 1, characterized in that: The chemical immersion apparatus also includes a stacking worktable (10) for assembling the cover glass plate (7) and the stacking suction cups (9).

8. The precision cutting device for cover glass according to claim 1, characterized in that: The cutting device includes a cutting table (3) and a water-guided laser cutting device (2) set on the side of the cutting table (3), an upper loading robot (1), an lower loading robot (5), and a waste disposal robot (4); the upper loading robot (1) and the lower loading robot (5) are equipped with vacuum suction cups.

9. A method for precisely cutting cover glass using the cover glass precision cutting apparatus as described in any one of claims 1-8, characterized in that, It includes the following steps: S1. The loading robot (1) uses a vacuum suction cup to pick up the cover glass raw material sheet from the cover glass raw material package and transports it to the cutting table (3). After the sensor of the cutting table (3) receives the signal of the cover glass sheet (7) being placed, it starts the conveyor belt to transport the cover glass sheet (7) to the fixed baffle of the water-guided laser cutting device (2). The cover glass sheet (7) is positioned by laser and reaches the designated cutting position. S2, the water-guided laser cutting device (2) performs high-precision cutting on the cover glass raw material sheet to cut out the cover glass sheet (7). After the cutting is completed, the handling command is triggered, and the unloading robot (5) picks up the cover glass sheet (7) and places it on the conveyor belt. After the placement is completed, the cleaning command is triggered, and the waste processing robot (4) pushes the waste glass generated by the cutting to the waste recycling bin. S3. The cover glass sheet (7) is transported to the end of the conveyor belt to trigger the termination limit, and the multi-layer cover glass assembly (13) is stacked; the specific steps are as follows: S31. The stacking robot (8) transports the cover glass sheet (7) to the stacking worktable (10); S32. The stacking robot (8) picks up the stacking suction cup (9) and places it above the cover glass plate (7) of the stacking worktable (10), so that the lower suction nozzle (912) contacts the cover glass plate (7). S33. The stacking robot (8) picks up another cover glass plate (7) and places it above the stacking suction cup (9), so that the upper suction nozzle (911) contacts the cover glass plate (7); S34, the gripping mechanism of the suction cup gripper (6) clamps the spindle cavity (93) of the stacked suction cups (9), causing the partition ball (94) to deviate from the gas channel opening inside the spindle cavity (93); S35. Connect the guide tube (92) of the stacked suction cups (9) to the air pump through the air pipe. The air pump extracts the gas between the suction nozzle (91) and the cover glass plate (7) so that the upper suction nozzle (911) and the lower suction nozzle (912) are tightly connected to the cover glass plate (7) they are in contact with. S36, the suction cup gripper (6) releases its grip on the spindle cavity (93), and the partition ball (94) inside the spindle cavity (93) blocks the gas passage in the spindle cavity (93) under negative pressure, so that the suction nozzle (91) continues to adsorb the cover glass plate (7). S37. Disconnect the air pump from the connecting pipe (92); S38. Repeat steps S32-S37 to assemble an appropriate number of cover glass sheets (7) and stacked suction cups (9) into a multi-layer cover glass assembly (13). S4. Use the chemical soaking robot (11) to pick up the multi-layer cover glass assembly (13) and immerse one edge of the multi-layer cover glass assembly (13) vertically into the glass melting solution in the chemical soaking tank (12) for 3-5 minutes. S5. The chemical soaking robot (11) lifts the cover glass assembly and stands for 30s-60s to allow the residual glass solution to drip off completely. S6. After the chemical soaking robot (11) holds the cover glass assembly and rotates it 90°, repeat steps S4-S5 to make all four edges of the cover glass assembly chemically soaked. S7. The chemical immersion robot (11) holds the cover glass assembly after chemical immersion and moves it to the storage area to disassemble the cover glass assembly; the specific steps are as follows: S71, The clamping mechanism of the suction cup gripper (6) clamps the spindle cavity (93) of the stacked suction cup (9) at the top of the cover glass assembly, causing the partition ball (94) inside to deviate from the gas channel opening inside the spindle cavity (93); S72. Air enters the spindle cavity (93) and the suction nozzle (91) from the guide tube (92), causing the cover glass plate (7) adsorbed by the upper suction nozzle (911) and the lower suction nozzle (912) to detach from the adsorption. S73. The stacking robot (8) transports the top cover glass plate (7), the stacking suction cup (9), and the next top cover glass plate (7) to the designated storage location from top to bottom.

10. The method for precise cutting of cover glass according to claim 9, characterized in that: In step S4, one side edge of the multilayer cover glass assembly (13) is vertically immersed in the glass-dissolving solution in the chemical soaking tank (12) to a depth of 8mm-10mm. The glass-dissolving solution is a solution of concentrated hydrochloric acid, concentrated nitric acid and hydrofluoric acid in a ratio of 4:12:1.

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