Automatic feeding and discharging mechanism of polaroid grinding machine

By designing the automatic loading and unloading mechanism of the polarizer grinder, and using technical means such as six-axis manipulators and hoisting parts, the problems of poor consistency, high cost and low efficiency of manual loading are solved, and efficient automatic loading and unloading are achieved, and the grinding quality and production efficiency are improved.

CN119609923APending Publication Date: 2025-03-14山西能源学院
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Patent Information

Application Number
CN202510079518.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-01-18
Publication Date
2025-03-14

AI Technical Summary

Technical Problem

Existing polarizer grinders rely on manual feeding, which have problems such as poor consistency, high cost and low efficiency, and cannot meet the industry's demand for improving automation level.

Method used

An automatic loading and unloading mechanism of a polarizer grinder is designed, and a combination of a six-axis manipulator, a hoisting part and a clamping part is used to realize the automatic clamping, loading and unloading of the polarizer.

Benefits of technology

It realizes efficient automatic loading and unloading of polarizers, improves the degree of automation of the grinder, reduces manual investment, ensures the consistency and grinding quality of the entire stack of polarizers, reduces costs, and improves production efficiency.

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Abstract

The invention discloses an automatic feeding and discharging mechanism of a polaroid grinding machine. The automatic feeding and discharging mechanism comprises a six-axis mechanical arm, a jacking part and a clamping part. The jacking part comprises a fixed column, a sliding plate, a jacking air cylinder and a jacking column; a jacking hole is formed in a lower pressing table of the grinding machine; the bottom end of the fixing column is vertically fixed to a machine frame of the grinding machine, a panel of the sliding plate is vertically and slidably connected to the top end face of the fixing column, a cylinder body of the jacking air cylinder is fixed to the top face of one end of the sliding plate, and the bottom end of the jacking column is fixed to a piston rod of the jacking air cylinder and can slide to the position below the lower pressing table along with the sliding plate. The jacking cylinder can drive the jacking column to penetrate through the jacking hole so as to bear the polaroid; the clamping part is fixed to the driving end of the six-axis mechanical arm so as to clamp the polaroid. The multi-degree-of-freedom characteristic of the six-axis mechanical arm is used for being matched with the clamping part to automatically clamp the polaroid, automatic feeding and discharging of the polaroid can be achieved through the cooperation of the six-axis mechanical arm and the jacking part, and one set of mechanism can meet the working requirements of two grinding machines at the same time.
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Description

Technical Field

[0001] The present invention relates to the technical field of polarizer processing equipment, and more particularly to an automatic loading and unloading mechanism of a polarizer grinding machine. Background Art

[0002] Polarizers are widely used in consumer and industrial electronic display panels. They are made of multiple layers of film. Polarizers are an important raw material for display panels, accounting for about 10% of the total cost of liquid crystal panels. The imaging of liquid crystal display modules must rely on polarizers, and their quality directly affects the display quality of the panel. In the production and processing of polarizers, one important process is grinding. The grinding process is an important means to ensure the dimensional accuracy and angle accuracy of polarizers and remove edge glue overflow and burrs.

[0003] At present, common grinding machines can place the whole-spiral polarizer on the grinding workbench by manual loading, and complete the positioning of the whole-spiral polarizer by combining manual tapping and positioning blocks, and then start grinding. However, manual placement has problems such as poor consistency, high cost and low efficiency. As the industry's development requirements for automation levels continue to increase, manual placement is gradually unable to meet the needs of the industry.

[0004] Therefore, how to provide a mechanism that can automatically load and unload materials for a grinder, so that one set of mechanisms can correspond to two grinders at the same time and complete the alternating automatic loading and unloading, beating and grinding work of the two grinders is a problem that technical personnel in this field urgently need to solve. Summary of the invention

[0005] In view of this, the present invention provides an automatic loading and unloading mechanism for a polarizer grinding machine, aiming to solve the above technical problems.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

[0007] An automatic loading and unloading mechanism of a polarizer grinding machine comprises a six-axis manipulator, a lifting part and a clamping part;

[0008] The lifting part includes a fixed column, a slide plate, a lifting cylinder and a lifting column; a lifting hole is opened on the lower pressing table of the grinding machine; the bottom end of the fixed column is vertically fixed to the frame of the grinding machine, the panel of the slide plate is vertically slidably connected to the top surface of the fixed column, the cylinder body of the lifting cylinder is fixed to the top surface of one end of the slide plate, the bottom end of the lifting column is fixed to the piston rod of the lifting cylinder and can slide with the slide plate to the bottom of the lower pressing table, and the lifting cylinder can drive the lifting column to pass through the lifting hole to receive the polarizer;

[0009] The clamping part is fixed to the driving end of the six-axis manipulator to clamp the polarizer and place it on the top of the lifting column.

[0010] The beneficial effect of the technical solution of the present invention is that the slide plate of the jacking part can drive the jacking column to slide to the bottom of the lower pressing table, the piston rod of the jacking cylinder slides up and can drive the jacking column to penetrate the jacking hole on the lower pressing table, the six-axis manipulator drives the clamping part to clamp the polarizer and place it on the jacking column, and the piston rod of the jacking cylinder slides down so that the polarizer falls completely on the top surface of the lower pressing table, thereby realizing automatic loading; when the polarizer needs to be unloaded after grinding, the piston rod of the jacking cylinder slides up, and the jacking column penetrates the jacking hole to lift the polarizer to a certain height, and the gap between the polarizer and the lower pressing table can facilitate the clamping of the polarizer by the clamping part to realize automatic unloading; a set of automatic loading and unloading mechanisms of the present invention can meet the working requirements of two grinders at the same time, and has a high degree of automation.

[0011] Preferably, the lifting part further includes an adapter plate and a lifting plate, the adapter plate is an L-shaped plate, the horizontal plate of which is fixed to the piston rod of the lifting cylinder, the lifting plate is fixed to a side wall of the vertical plate of the adapter plate and forms a Z-shaped plate with the adapter plate; the bottom end of the lifting column is vertically fixed to the top surface of the lifting plate. The piston rod of the lifting cylinder can drive the adapter plate to move up and down, and then the adapter plate drives the lifting plate and the lifting column to move up and down with the piston rod of the lifting cylinder.

[0012] Preferably, the panel of the lifting plate is provided with a plurality of insertion holes, the number of the lifting columns is at least two and the bottom ends thereof are inserted into the insertion holes at intervals. By adjusting the different positions of the lifting columns on the lifting plate, the requirements for automatic loading and unloading of polarizers of different sizes can be met.

[0013] Preferably, a transverse cylinder is fixed to the top of the fixed column, and the piston rod of the transverse cylinder is fixed to the panel of the slide plate away from the lifting cylinder. The transverse cylinder is used to realize the transverse movement of the slide plate along the in-and-out direction of the polarizer.

[0014] Preferably, the slide plate is a U-shaped plate, and two lifting cylinders are provided and symmetrically arranged on the panels of the slide plate on both sides of the U-shaped opening. The two sets of symmetrically arranged lifting cylinders can ensure the overall stability of the polarizer during automatic loading and unloading, prevent tilting and instability, and ensure that the entire stack of polarizers can be loaded and unloaded intact.

[0015] Preferably, the clamping part includes a mounting plate, a clamping cylinder and a clamping plate, one side panel of the mounting plate is fixed to the driving end of the six-axis manipulator, the cylinder body of the clamping cylinder is fixed to the other side panel of the mounting plate, and the clamping plate is fixed to the piston of the clamping cylinder. The clamping cylinder drives the clamping plate to clamp the polarizer, and the six-axis manipulator can rotate with multiple degrees of freedom. The six-axis manipulator cooperates with the clamping plate to clamp the entire stack of polarizers and place them on the lower pressing table of the grinder.

[0016] The clamping plate includes a first clamping plate and a second clamping plate, one end of the first clamping plate and the second clamping plate are respectively fixed to the two pistons of the clamping cylinder, and the first clamping plate is located above the second clamping plate and clamps the polarizer between the two opposite side panels.

[0017] Preferably, a plurality of nozzles are fixed to one end of the first clamping plate away from the clamping cylinder.

[0018] The beneficial effect of the above technical solution is that, when feeding, the nozzle can spray compressed air to blow air around the polarizer to clean the debris remaining on the polarizer after grinding.

[0019] Preferably, it also includes a beating part, which includes a beating cylinder and a beating plate; the clamping cylinder is fixed to one end of the mounting plate, the beating cylinder is provided with two cylinder bodies arranged perpendicularly to each other and fixed to the other end of the mounting plate on the same side as the clamping cylinder, the beating plates are provided with two pieces and are respectively fixed to the piston rods of the two beating cylinders, and the two beating plates are arranged perpendicularly to each other. The two perpendicular beating plates can be used to bend the whole stack of polarizers neatly, complete the positioning of the whole spiral polarizer, and ensure the consistency of the polarizer after loading.

[0020] Preferably, a cleaning unit is further included, and the cleaning unit is rotatably connected to the mounting plate above the beating cylinder to roll and clean the edge of the polarizer. During the feeding process, after the nozzle blows air around the polarizer, the cleaning unit rolls and cleans the edge (edge) of the whole spiral polarizer to ensure that the polarizer is clean and tidy.

[0021] It can be seen from the above technical scheme that, compared with the prior art, the present invention discloses an automatic loading and unloading mechanism for a polarizer grinder. Based on the existing grinder, the multi-degree-of-freedom characteristics of a six-axis robotic arm are utilized to cooperate with a clamping part to automatically clamp the polarizer, and cooperate with a lifting part to realize automatic loading and unloading of the polarizer. A set of automatic loading and unloading mechanisms of the present invention can meet the working requirements of two grinders at the same time, has a high degree of automation, reduces labor input, and can realize positioning of a whole stack of polarizers while loading, thereby ensuring the consistency of the whole stack of polarizers and thus ensuring the grinding quality. The present invention has low cost, high production efficiency and excellent production quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0023] Figure 1 A schematic diagram of the structure of the automatic loading and unloading mechanism of the grinding machine provided by the present invention;

[0024] Figure 2 for Figure 1 A magnified schematic diagram of part A in FIG.

[0025] Figure 3 A schematic diagram of the structures of the clamping part, the beating part and the cleaning part provided by the present invention;

[0026] Figure 4 A schematic diagram of the structure of the lifting part provided by the present invention;

[0027] Figure 5 A schematic diagram of the structure of a grinding machine workbench provided by the present invention;

[0028] Figure 6 for Figure 5 An enlarged schematic diagram of part B in FIG.

[0029] in,

[0030] 1-grinding machine; 11-upper pressing table; 12-lower pressing table; 13-lifting hole; 14-right angle shoulder;

[0031] 2- Six-axis manipulator;

[0032] 3-lifting part; 31-fixed column; 32-transverse cylinder; 33-slide plate; 34-lifting cylinder; 35-adapter plate; 36-lifting plate; 37-lifting column; 38-jack;

[0033] 4-clamping part; 41-mounting plate; 42-clamping cylinder; 43-first clamping plate; 44-second clamping plate; 45-nozzle;

[0034] 5- Polarizer;

[0035] 6-flapping part; 61-flapping cylinder; 62-flapping plate;

[0036] 7- Cleaning department. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions 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 of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] Participate in the Figures 1 to 6 The embodiment of the present invention discloses an automatic loading and unloading mechanism of a polarizer grinding machine, comprising a six-axis manipulator 2, a lifting part 3 and a clamping part 4.

[0039] The lifting part 3 includes a fixed column 31, a slide plate 33, a lifting cylinder 34 and a lifting column 37; a lifting hole 13 is opened on the lower pressing table 12 of the grinder 1; the bottom end of the fixed column 31 is vertically fixed to the frame of the grinder 1, the panel of the slide plate 33 is vertically slidably connected to the top surface of the fixed column 31, the cylinder body of the lifting cylinder 34 is fixed to the top surface of one end of the slide plate 33, the bottom end of the lifting column 37 is fixed to the piston rod of the lifting cylinder 34 and can slide with the slide plate 33 to the bottom of the lower pressing table 12, and the lifting cylinder 34 can drive the lifting column 37 to pass through the lifting hole 13 to receive the polarizer 5;

[0040] The clamping part 4 is fixed to the driving end of the six-axis manipulator 2 to clamp the polarizer 5 and place it on the top of the lifting column 37 .

[0041] like Figure 1 , 2 As shown in , 6, the slide plate 33 can move forward and backward along the direction of the polarizer 5 entering and exiting. When loading is required, the slide plate 33 moves forward so that the lifting column 37 is located below the lower pressing table 12, and the lifting cylinder 34 starts and drives the lifting column 37 to move upward and pass through the lifting hole 13; then the six-axis manipulator 2 starts to drive the clamping part 4 to clamp the polarizer 5 and place it on the lifting column 37 above the lower pressing table 12, and then the lifting cylinder 34 drives the lifting column 37 to move downward to place the polarizer 5 on the lower pressing table 12, and the slide plate 33 moves backward to leave the lower pressing table 12; the upper pressing table 11 moves downward to cooperate with the lower pressing table 12 to press the polarizer 5 for grinding;

[0042] When unloading is required after grinding is completed, the slide plate 33 moves forward and the lifting column 37 moves upward to penetrate the lifting hole 13 to lift the polarizer 5 for a distance, and then the six-axis manipulator 2 drives the clamping part 4 to realize automatic unloading.

[0043] In this embodiment, the lifting part 3 also includes an adapter plate 35 and a lifting plate 36. The adapter plate 35 is an L-shaped plate, and its horizontal plate is fixed to the piston rod of the lifting cylinder 34. The lifting plate 36 is fixed on a side wall of the vertical plate of the adapter plate 35 and forms a Z-shaped plate with the adapter plate 35. The bottom end of the lifting column 37 is vertically fixed to the top surface of the lifting plate 36.

[0044] The setting of the adapter plate enables the lifting plate to abut against the mounting plate when not in operation, and the lifting cylinder starts to drive the lifting plate to drive the lifting column to move up and down when it needs to work. The setting of the adapter plate ensures the stable operation of the lifting part, and the lifting cylinder with a small stroke can be used to achieve the receiving and lifting of the polarizer.

[0045] In order to further optimize the above technical solution and ensure that polarizers of different specifications and sizes can be automatically loaded and unloaded, a plurality of sockets 38 are provided on the panel of the lifting plate 36, and the number of lifting columns 37 is at least two and their bottom ends are inserted into the sockets 38 at intervals.

[0046] In order to further optimize the above technical solution and ensure that the slide plate can move effectively, a transverse cylinder 32 is fixed to the top of the fixed column 31, and the piston rod of the transverse cylinder 32 is fixed to the panel of the slide plate 33 away from the lifting cylinder 34.

[0047] Two transverse cylinders can be set, including a forward cylinder and a backward cylinder. The piston rod of the forward cylinder is fixed to the end of the skateboard away from the lifting cylinder. The skateboard can slide back and forth along the direction of the polarizer through the forward cylinder. The piston rod of the backward cylinder is fixed to the cylinder body of the forward cylinder. The backward cylinder can increase the sliding stroke of the skateboard away from the polarizer. The forward cylinder and the backward cylinder can effectively ensure the stability of the skateboard sliding, and cooperate with the six-axis robot to realize automatic loading and unloading of the polarizer.

[0048] In order to further optimize the above technical solution and ensure the integrity and stability of the entire stack of polarizers during loading and unloading, the slide plate 33 is a U-shaped plate, and the lifting cylinder 34 is provided with two symmetrically arranged slide plates 33 on the panels on both sides of the U-shaped opening.

[0049] like Figure 4 As shown, two lifting cylinders are provided, and two lifting columns are respectively provided on the lifting plate corresponding to each lifting cylinder. The polarizer can be supported at four points by the four lifting columns, thereby ensuring the stability of the polarizer.

[0050] like Figure 3 As shown, the clamping part 4 in this embodiment includes a mounting plate 41, a clamping cylinder 42 and a clamping plate. One side panel of the mounting plate 41 is fixed to the driving end of the six-axis manipulator 2, the cylinder body of the clamping cylinder 42 is fixed to the other side panel of the mounting plate 41, and the clamping plate is fixed to the piston of the clamping cylinder 42.

[0051] The clamping plate includes a first clamping plate 43 and a second clamping plate 44. One end of the first clamping plate 43 and the second clamping plate 44 are respectively fixed to the two pistons of the clamping cylinder 42. The first clamping plate 43 is located above the second clamping plate 44 and clamps the polarizer 5 between its two opposite side panels.

[0052] The clamping cylinder can drive the first clamping plate and the second clamping plate to perform bidirectional clamping or loosening actions through two pistons, thereby clamping the entire stack of polarizers.

[0053] In order to further optimize the above technical solution, air is blown around the entire stack of polarizers during unloading to blow off the debris adhering to the polarizers during the grinding process. A plurality of nozzles 45 are fixed to one end of the first clamping plate 43 away from the clamping cylinder 42. The compressed air blown out by the nozzles can blow air around the entire stack of polarizers.

[0054] In order to further optimize the above technical solution, a cleaning unit 7 is further included. The cleaning unit 7 is rotatably connected to the mounting plate 41 above the beating cylinder 61 to perform rolling cleaning on the edge of the polarizer 5 .

[0055] After the nozzle blows air around the polarizer, the edge (edge) of the entire spiral polarizer is rolled and cleaned by the cleaning unit. The cleaning unit can use a dust-sticking cleaning roller. After cleaning, the cleaning roller is rolled on the transfer paper roller for one circle to transfer foreign matter to the transfer paper roller. Ensure that the cleaning roller is clean before each cleaning, ensure that the entire stack of polarizers can be effectively cleaned each time, and ensure the cleanliness of the final polarizer.

[0056] In order to further optimize the above technical solution, it also includes a flapping part 6, which includes a flapping cylinder 61 and a flapping plate 62; the clamping cylinder 42 is fixed at one end of the mounting plate 41, and the flapping cylinder 61 is provided with two cylinder bodies which are arranged perpendicularly to each other and fixed at the other end of the mounting plate 41 on the same side of the clamping cylinder 42; the flapping plate 62 is provided with two pieces which are respectively fixed to the piston rods of the two flapping cylinders 61, and the two flapping plates 62 are arranged perpendicularly to each other.

[0057] After the loading is completed and the lifting column 37 withdraws from the lower pressing table 12, the beating part 6 beats the whole stack of polarizers 5. Through the two mutually perpendicular beating plates 62 and the right-angle shoulder 14 on the workbench of the grinder 1, the whole stack of polarizers can be neatly stacked on the lower pressing table 12. The freedom of the six-axis robot arm 2 enables the beating part 6 to beat the circumferential side and diagonal position of the whole stack of polarizers 5, so that the polarizers 5 abut against the right-angle shoulder 14, ensuring that the whole stack of polarizers 5 can be neatly and uniformly placed on the lower pressing table 12, ensuring the grinding quality of the whole stack of polarizers 5 and improving production efficiency.

[0058] In this embodiment, the workbench of each grinder is provided with two grinding stations. After the beat calculation, a set of automatic loading and unloading mechanism can meet the working requirements of the two grinders at the same time.

[0059] The principle of the present invention is:

[0060] The lifting part drives the sliding plate to drive the lifting column to move to the bottom of the lower pressing platform, and the lifting cylinder drives the lifting column to move upward and penetrate the lifting hole to leak out of the top surface of the lower pressing platform;

[0061] The clamping cylinder drives the clamping plate to clamp the polarizer, and the six-axis driving arm places the polarizer on the top of the lifting column. Then the lifting column moves downward to place the polarizer on the lower pressing table to complete automatic loading.

[0062] The beating unit starts, the beating plate beats the whole stack of polarizers, so that they abut against the right-angle shoulder, the lower pressing table moves downward to press the polarizers, and the grinder starts to grind the polarizers;

[0063] After the grinding is completed, the nozzle sprays compressed air around the polarizer to blow away a large amount of debris; then the cleaning part starts to adhere to the debris attached to the polarizer;

[0064] The lifting part starts to lift the polarizer a certain distance, and the clamping part starts to clamp the ground polarizer and store it, completing automatic unloading.

[0065] The present invention can receive and lift the polarizer through the lifting part. After the lifting column lifts the polarizer for a certain distance, the gap between the polarizer and the pressing table can facilitate the insertion of the second clamping plate, thereby facilitating the placement and unloading of the polarizer by the clamping part. The six-axis manipulator can simulate the manual beating action to beat the four sides of the polarizer. The cleaning part simulates the manual cleaning action, and the cleaning roller can roll around the polarizer 3-4 times for thorough cleaning.

[0066] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0067] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An automatic loading and unloading mechanism for a polarizer grinding machine, characterized in that: It comprises a six-axis manipulator (2), a lifting part (3) and a clamping part (4); The lifting part (3) comprises a fixed column (31), a slide plate (33), a lifting cylinder (34) and a lifting column (37); a lifting hole (13) is provided on the lower pressing platform (12) of the grinding machine (1); the bottom end of the fixed column (31) is vertically fixed on the frame of the grinding machine (1); the panel of the slide plate (33) is vertically slidably connected to the top surface of the fixed column (31); the cylinder body of the lifting cylinder (34) is fixed to the top surface of one end of the slide plate (33); the bottom end of the lifting column (37) is fixed to the piston rod of the lifting cylinder (34) and can slide with the slide plate (33) to the bottom of the lower pressing platform (12); the lifting cylinder (34) can drive the lifting column (37) to pass through the lifting hole (13) to receive the polarizer (5); The clamping portion (4) is fixed to the driving end of the six-axis manipulator (2) to clamp the polarizer (5) and place it on the top of the lifting column (37).

2. The automatic loading and unloading mechanism of the polarizer grinding machine according to claim 1, characterized in that: The lifting part (3) also includes an adapter plate (35) and a lifting plate (36); the adapter plate (35) is an L-shaped plate, the horizontal plate of which is fixed to the piston rod of the lifting cylinder (34); the lifting plate (36) is fixed to a side wall of the vertical plate of the adapter plate (35) and forms a Z-shaped plate with the adapter plate (35); the bottom end of the lifting column (37) is vertically fixed to the top surface of the lifting plate (36).

3. The automatic loading and unloading mechanism of the polarizer grinding machine according to claim 2, characterized in that: A plurality of insertion holes (38) are provided on the panel of the lifting plate (36), and the number of the lifting columns (37) is at least two and the bottom ends of the lifting columns (37) are inserted into the insertion holes (38) at intervals.

4. The automatic loading and unloading mechanism of the polarizer grinding machine according to claim 2, characterized in that: A transverse cylinder (32) is fixed to the top end of the fixed column (31), and a piston rod of the transverse cylinder (32) is fixed to a panel of the slide plate (33) at one end away from the lifting cylinder (34).

5. The automatic loading and unloading mechanism of the polarizer grinding machine according to claim 3 or 4, characterized in that: The slide plate (33) is a U-shaped plate, and the lifting cylinder (34) is provided with two panels symmetrically arranged on the two sides of the U-shaped opening of the slide plate (33).

6. The automatic loading and unloading mechanism of the polarizer grinding machine according to claim 1, characterized in that: The clamping portion (4) comprises a mounting plate (41), a clamping cylinder (42) and a clamping plate, a side panel of the mounting plate (41) is fixed to the driving end of the six-axis manipulator (2), a cylinder body of the clamping cylinder (42) is fixed to the other side panel of the mounting plate (41), and the clamping plate is fixed to the piston of the clamping cylinder (42).

7. The automatic loading and unloading mechanism of the polarizer grinding machine according to claim 6, characterized in that: The clamping plate comprises a first clamping plate (43) and a second clamping plate (44); one end of the first clamping plate (43) and one end of the second clamping plate (44) are respectively fixed to two pistons of the clamping cylinder (42); the first clamping plate (43) is located above the second clamping plate (44) and clamps the polarizer (5) between two opposite side panels.

8. The automatic loading and unloading mechanism of the polarizer grinding machine according to claim 7, characterized in that: A plurality of nozzles (45) are fixed to one end of the first clamping plate (43) away from the clamping cylinder (42).

9. The automatic loading and unloading mechanism of the polarizer grinding machine according to claim 6, characterized in that: It also includes a flapping part (6), which includes a flapping cylinder (61) and a flapping plate (62); the clamping cylinder (42) is fixed to one end of the mounting plate (41), the flapping cylinder (61) is provided with two cylinder bodies which are arranged perpendicularly to each other and fixed to the other end of the mounting plate (41) on the same side as the clamping cylinder (42); the flapping plate (62) is provided with two pieces which are respectively fixed to the piston rods of the two flapping cylinders (61), and the two flapping plates (62) are arranged perpendicularly to each other.

10. The automatic loading and unloading mechanism of the polarizer grinding machine according to claim 9, characterized in that: It also comprises a cleaning part (7), wherein the cleaning part (7) is rotatably connected to the mounting plate (41) above the beating cylinder (61) to perform rolling cleaning on the edge of the polarizer (5).