Clamping device for automatically aligning and detecting thin plate and clamping method of clamping device

Abstract

The invention belongs to the technical field of thin plate detection, and discloses a clamping device for automatically aligning and detecting a thin plate and a clamping method thereof.The clamping device comprises a top frame, a fixing lug plate is fixedly installed at the top end of the top frame, a mounting plate is fixedly installed at the bottom end of the top frame, and first guide rails are fixedly installed on the outer side face of the mounting plate at equal angles; second guide rails located between the two first guide rails are fixedly mounted on the outer side face of the mounting plate at equal angles, and a first electric push rod is fixedly mounted at the top end of an inner cavity of the fixing lug plate. By utilizing a plurality of first connecting rods with the same length and cooperating with the guiding effect of a first guide rail and a first guide block, the first connecting rods control the first movable plate to move up and down, so that a plurality of clamping plates can get close to or get away from each other automatically, through pre-clamping between the first movable plate and a thin plate, a center point is determined rapidly, the whole process is completed rapidly, and the production efficiency is improved. And the time consumed for determining the center point is shortened, so that the clamping stability is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of thin plate detection, and in particular relates to a clamping device for automatic alignment detection of thin plates and a clamping method thereof. Background Art

[0002] In the manufacturing industry, thin plate materials are widely used in various fields due to their light weight, high strength and easy processing. However, the alignment accuracy of thin plates often directly affects the quality and performance of the final product. For this reason, an automatic alignment device is required to position the thin plate to ensure that the thin plate can be positioned correctly. When using the automatic alignment device, the thin plate needs to be clamped. At this time, a special clamping device will be used to clamp the thin plate.

[0003] The clamping device for thin plates is mainly composed of a clamping plate and a cylinder or a push rod. When in use, the cylinder or the push rod is used to control the movement of the movable plate and the connecting rod, and ultimately control the displacement of the clamping plate. However, this clamping device needs to first determine the center point when clamping in order to stably clamp. The positioning of the entire center point takes a certain amount of time. If the center point cannot be determined, stable clamping cannot be achieved.

[0004] At the same time, when clamping some thin plates, multiple clamps are needed to clamp them, but the clamping force needs to be precisely controlled. When the clamping force is too large, it is easy to cause damage to the side of the thin plate. When the clamping force is too small, it is easy to cause the thin plate to fall off. Improvement is urgently needed. Summary of the invention

[0005] The object of the present invention is to provide a clamping device for automatic alignment detection of thin plates and a clamping method thereof, so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above-mentioned objectives, the present invention provides the following technical solutions: a clamping device for automatically aligning and detecting thin plates, comprising a top frame, the top of the top frame is fixedly installed with a fixed ear plate, the bottom of the top frame is fixedly installed with a mounting plate, the outer side surface of the mounting plate is fixedly installed with a first guide rail at an equal angle, the outer side surface of the mounting plate is fixedly installed with a second guide rail located between the two first guide rails at an equal angle. The top of the inner cavity of the fixed ear plate is fixedly installed with a first electric push rod, the upper part of the first guide rail is movably clamped with a clamping assembly, the output end of the first electric push rod is connected to the top of the clamping assembly, an adjusting assembly is provided between the second guide rail and the clamping assembly, the interior of the second guide rail is movably clamped with adsorption assemblies, the adsorption assemblies are equiangularly distributed at the bottom end of the adjusting assembly and are connected to the adjusting assemblies, a second electric push rod is fixedly installed in the middle of the top of the mounting plate, and the output end of the second electric push rod is connected to the adjusting assembly.

[0007] Before clamping the thin plate, the fixed ear plate can be connected to the external robotic arm to ensure that the device has the ability of three-axis displacement. Before clamping, the device can be moved to the top of the thin plate by the external robotic arm. At the same time, it is necessary to ensure that the outer side of the clamping assembly is located on the outer side of the thin plate to complete the preparation before clamping the thin plate.

[0008] As a further technical solution of the present invention, the clamping assembly includes a first movable plate, a first fixed seat is fixedly installed at an equal angle on the bottom end of the first movable plate, and the end of the first fixed seat away from the first movable plate is movably connected to a first connecting rod via a rotating shaft.

[0009] As a further technical solution of the present invention, one end of the first connecting rod away from the first fixed seat is movably connected to the second fixed seat through a rotating shaft, and the bottom end of the second fixed seat is fixedly installed with a first guide block, and the first guide block is movably connected to the first guide rail.

[0010] As a further technical solution of the present invention, the middle part of the top end of the first movable plate is connected to the output end of the first electric push rod, and a clamping plate is fixedly installed at the bottom end of the first guide block.

[0011] During clamping, the first electric push rod can be started and controlled to shorten, and the first movable plate will rise accordingly. When the first movable plate rises, multiple first connecting rods will deflect accordingly, that is, drive multiple first connecting rods to deflect toward the middle, and at the same time apply pulling force to the second fixed seat at the bottom, and under the guiding action of the first guide block and the first guide rail, the multiple clamps are driven to approach each other, and the multiple clamps are relatively close to each other until the inner sides of the multiple clamps are in contact with the outer side of the thin plate, and the multiple clamps are located in the middle position of the side of the thin plate, and the first movable plate is located at the center point directly above the thin plate, completing the determination of the center point and completing the pre-clamping process.

[0012] By utilizing a plurality of first connecting rods of equal length and cooperating with the guiding action of the first guide rail and the first guide block, the up and down displacement of the first movable plate can be controlled to automatically realize the plurality of clamping plates approaching or moving away from each other, and the center point can be quickly determined through pre-clamping between the first connecting rod and the thin plate. The whole process can be completed quickly, thus reducing the time spent on determining the center point and improving the clamping stability.

[0013] As a further technical solution of the present invention, the adjustment assembly includes a second movable plate, which is located between the first movable plate and the mounting plate. A third fixed seat is fixedly installed at an equal angle on the bottom end of the second movable plate, and a second connecting rod is fixedly installed on one end of the third fixed seat away from the second movable plate.

[0014] As a further technical solution of the present invention, one end of the second connecting rod away from the third fixed seat is movably connected to the fourth fixed seat through a rotating shaft, the bottom end of the fourth fixed seat is connected to the adsorption assembly, and the fourth fixed seat is located directly above the second guide rail and has the same number as the second guide rail.

[0015] After the pre-clamping is completed, the center point of the second movable plate can coincide with the center point of the first movable plate, completing the synchronous determination of the center point of the adjustment component. The second electric push rod can be turned on and controlled to shorten. At this time, the second movable plate will drop accordingly, and drive multiple second connecting rods to deflect toward the outer side. At this time, multiple fourth fixed seats will move toward the outer side accordingly, and drive multiple adsorption components at the bottom to move toward the four corners of the thin plate.

[0016] As a further technical solution of the present invention, the adsorption assembly includes a second guide block, the second guide block is movably connected to the second guide rail, the top of the second guide block is connected to the bottom of the fourth fixed seat, the bottom end of the second guide block is fixedly installed with a mounting frame, and the bottom end of the mounting frame is fixedly installed with a fixing sleeve.

[0017] As a further technical solution of the present invention, an electromagnet is fixedly installed in the middle part of the top of the fixed sleeve, the internal movable sleeve of the fixed sleeve is connected to a movable rod, the top of the movable rod passes through the top of the fixed sleeve and is fixedly connected to an upper limit plate, and the bottom end of the movable rod passes through the bottom end of the electromagnet and is fixedly installed with a vacuum suction cup.

[0018] As a further technical solution of the present invention, a lower limit plate is fixedly sleeved on the outer side surface of the movable rod near the bottom end, and a limit spring is movably sleeved on the outer side surface of the movable rod. The upper and lower ends of the limit spring are respectively connected to the bottom end of the fixed sleeve and the top end of the lower limit plate. When the upper limit plate and the electromagnet are in a mutually adsorbed state, the vacuum suction cup is at the lowest point and the limit spring is in a stretched state.

[0019] When multiple adsorption components are displaced to the four corners of the thin plate, the power of the electromagnet can be turned on and suction is generated between the upper limit plates. At this time, the upper limit plate and the electromagnet are adsorbed on each other, which can drive the upper limit plate and the movable rod to move downward. At this time, the limit spring is stretched and drives the vacuum suction cup at the bottom to move downward. When the vacuum suction cup and the bottom end of the thin plate are adsorbed on each other, the clamping is completed. At this time, the clamping component can be controlled to automatically reset, the pre-clamping is released, and the adsorption and fixing process of the thin plate is completed through the adsorption component.

[0020] By utilizing the pre-clamping process of the device, the clamping center point is quickly determined, and by adjusting the function of the components, the four adsorption components are quickly moved to the four corners of the thin plate, and adsorption fixation is achieved through the action of the adsorption components. The whole process can be completed quickly, and after the adsorption fixation is completed, there is no need to use side clamping, which effectively avoids side damage and falling of the thin plate due to abnormal clamping force, and further improves the clamping stability.

[0021] When the clamping of the thin plate is completed and the performance of the thin plate has been tested, when it is necessary to discharge the material, the first movable plate can be continuously controlled to rise until the multiple first guide blocks are relatively close to and contact the outer side of the thin plate to complete the clamping process. At this time, the power supply of the electromagnet can be turned off. At this time, the limit spring automatically resets and drives the vacuum suction cup to automatically rise to release the adsorption fixation. At this time, the thin plate can be changed from adsorption fixation to clamping fixation until the thin plate is slowly placed on the conveyor belt and the clamping is released to complete the discharge process.

[0022] By utilizing the cooperation between the clamping component, the adjusting component and the adsorption component, the device can switch between the two states of adsorption fixation and clamping fixation, so that the device can be changed from adsorption fixation to clamping fixation during discharge, ensuring that the thin plate will not fall and be damaged due to the disappearance of the adsorption force, making the thin plate more stable during discharge and improving the discharge quality.

[0023] A clamping method for a clamping device for automatic alignment detection of thin plates, comprising the following steps: S1: Before use, the device needs to be connected to the external robot arm through the fixed ear plate. Before clamping, the device needs to be placed directly above the thin plate through the external robot arm. At the same time, it is necessary to ensure that multiple clamps are located on the outer side of the thin plate to complete the preparation before clamping; S2: During clamping, the first electric push rod can be turned on and controlled to shorten, and the first movable plate will rise accordingly, driving the first connecting rods to deflect, and the clamps will move relatively close to each other until all four clamps are in contact with the outer side of the thin plate. At this time, the pre-clamping is completed, and the first movable plate is located directly above the thin plate, and the center point is determined; S3: After the center point is determined, the second electric push rod can be turned on and controlled to shorten, so as to drive the second movable plate to descend. At this time, the plurality of second connecting rods can be deflected toward the outer side surface, and drive the plurality of fourth fixing seats to move toward the outer side surface, until the four adsorption components move to the four corners of the thin plate, and the adjustment process is completed; S4: At this time, the electromagnet can be turned on to adsorb the upper limit plate, and the movable rod is controlled to move downward, and the vacuum suction cup at the bottom is driven to move downward until the vacuum suction cup and the top of the thin plate are adsorbed to each other. After the adsorption is completed, the pre-clamping is released, and the clamping process can be completed.

[0024] The beneficial effects of the present invention are as follows: 1. The present invention utilizes a plurality of first connecting rods of equal length and cooperates with the guiding action of the first guide rail and the first guide block to control the up and down displacement of the first movable plate to automatically realize the plurality of clamping plates approaching or moving away from each other, and through the pre-clamping between the first movable plate and the thin plate, the center point can be quickly determined. The whole process is completed quickly, reducing the time spent on determining the center point, thereby improving the clamping stability.

[0025] 2. The present invention uses the pre-clamping process of the device to quickly determine the clamping center point, and through the action of the adjustment component, quickly move the four adsorption components to the four corners of the thin plate, and achieve adsorption fixation through the action of the adsorption components. The whole process can be completed quickly, and after the adsorption fixation is completed, there is no need to use side clamping, which effectively avoids the problem of side damage and falling of the thin plate caused by abnormal clamping force, and further improves the clamping stability. 3. The present invention utilizes the cooperation between the clamping component, the adjusting component and the adsorption component to enable the device to switch between the two states of adsorption fixation and clamping fixation, so that the device can be transformed from adsorption fixation to clamping fixation during discharge, ensuring that the thin plate will not fall and be damaged due to the disappearance of the adsorption force, making the thin plate more stable during discharge and improving the discharge quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the coordination of the top frame and the mounting plate as well as the first guide rail and the second guide rail structure of the present invention; Figure 3 It is an exploded schematic diagram of the clamping assembly and the first guide rail structure of the present invention; Figure 4 It is a schematic diagram of the coordination of the mounting plate, the adjustment component and the adsorption component structure of the present invention; Figure 5 It is an exploded schematic diagram of the second guide rail and the adjustment assembly structure of the present invention; Figure 6 It is a separate schematic diagram of the adsorption component structure of the present invention; Figure 7 It is a schematic diagram of the decomposition of the adsorption component structure of the present invention; Figure 8 for Figure 3 A magnified schematic diagram of the structure in the middle.

[0027] In the figure: 1. top frame; 2. fixed ear plate; 3. mounting plate; 4. first electric push rod; 5. first guide rail; 6. second guide rail; 7. second electric push rod; 8. clamping assembly; 801. first movable plate; 802. first fixed seat; 803. second fixed seat; 804. first connecting rod; 805. first guide block; 806. clamping plate; 9. adjustment assembly; 901. second movable plate; 902. third fixed seat; 903. fourth fixed seat; 904. second connecting rod; 10. adsorption assembly; 101. second guide block; 102. mounting frame; 103. fixing sleeve; 104. electromagnet; 105. movable rod; 106. upper limit plate; 107. lower limit plate; 108. vacuum suction cup; 109. limit spring. DETAILED DESCRIPTION

[0028] 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.

[0029] like Figures 1 to 8 As shown, in an embodiment of the present invention, a clamping device for automatic alignment detection of thin plates includes a top frame 1, a fixed ear plate 2 is fixedly installed on the top of the top frame 1, a mounting plate 3 is fixedly installed on the bottom end of the top frame 1, a first guide rail 5 is fixedly installed at an equal angle on the outer side surface of the mounting plate 3, a second guide rail 6 located between the two first guide rails 5 is fixedly installed at an equal angle on the outer side surface of the mounting plate 3, a first electric push rod 4 is fixedly installed on the top of the inner cavity of the fixed ear plate 2, a clamping assembly 8 is movably connected above the first guide rail 5, an output end of the first electric push rod 4 is connected to the top of the clamping assembly 8, an adjusting assembly 9 is provided between the second guide rail 6 and the clamping assembly 8, an adsorption assembly 10 is movably connected inside the second guide rail 6, the adsorption assembly 10 is equiangularly distributed at the bottom end of the adjusting assembly 9 and is connected to the adjusting assembly 9, a second electric push rod 7 is fixedly installed in the middle of the top end of the mounting plate 3, and the output end of the second electric push rod 7 is connected to the adjusting assembly 9.

[0030] Before clamping the thin plate, the fixed ear plate 2 can be connected to the external robotic arm to ensure that the device has the ability of three-axis displacement. Before clamping, the device can be moved to the top of the thin plate by the external robotic arm. At the same time, it is necessary to ensure that the outer side of the clamping assembly 8 is located on the outer side of the thin plate to complete the preparation before clamping the thin plate.

[0031] like Figure 1 and Figure 4 as well as Figure 8As shown, the clamping assembly 8 includes a first movable plate 801, a first fixed seat 802 is fixedly installed at an equal angle on the bottom end of the first movable plate 801, the end of the first fixed seat 802 away from the first movable plate 801 is movably connected to the first connecting rod 804 through a rotating shaft, the end of the first connecting rod 804 away from the first fixed seat 802 is movably connected to the second fixed seat 803 through a rotating shaft, the bottom end of the second fixed seat 803 is fixedly installed with a first guide block 805, the first guide block 805 is movably engaged with the first guide rail 5, the middle part of the top end of the first movable plate 801 is connected to the output end of the first electric push rod 4, and the bottom end of the first guide block 805 is fixedly installed with a clamping plate 806.

[0032] Embodiment: During clamping, the first electric push rod 4 can be started and controlled to shorten, and the first movable plate 801 rises accordingly. When the first movable plate 801 rises, the multiple first connecting rods 804 deflect accordingly, that is, drive the multiple first connecting rods 804 to deflect toward the middle, and at the same time apply tension to the second fixed seat 803 at the bottom, and under the guidance of the first guide block 805 and the first guide rail 5, the multiple clamping plates 806 are driven to approach each other. At this time, the multiple clamping plates 806 are relatively close to each other until the inner sides of the multiple clamping plates 806 are in contact with the outer side of the thin plate, and the multiple clamping plates 806 are located in the middle position of the side of the thin plate, and the first movable plate 801 is located at the center point directly above the thin plate, completing the determination of the center point and completing the pre-clamping process.

[0033] By utilizing a plurality of first connecting rods 804 of equal length and cooperating with the guiding action of the first guide rail 5 and the first guide block 805, the up and down displacement of the first movable plate 801 can be controlled to automatically realize the plurality of clamping plates 806 approaching or moving away from each other, and the center point can be quickly determined through the pre-clamping between the first connecting rod 804 and the thin plate. The whole process can be completed quickly, thus reducing the time spent on determining the center point and improving the clamping stability.

[0034] like Figure 1 and Figure 4 as well as Figure 5 As shown, the adjustment component 9 includes a second movable plate 901, and the second movable plate 901 is located between the first movable plate 801 and the mounting plate 3. A third fixed seat 902 is fixedly installed at an equal angle on the bottom end of the second movable plate 901. A second connecting rod 904 is fixedly installed on one end of the third fixed seat 902 away from the second movable plate 901. An end of the second connecting rod 904 away from the third fixed seat 902 is movably connected to a fourth fixed seat 903 through a rotating shaft. The bottom end of the fourth fixed seat 903 is connected to the adsorption component 10. The fourth fixed seat 903 is located directly above the second guide rail 6, and the number is the same as that of the second guide rail 6.

[0035] After the pre-clamping is completed, the center point of the second movable plate 901 can coincide with the center point of the first movable plate 801, completing the synchronous determination of the center point of the adjustment component 9, and the second electric push rod 7 can be turned on and controlled to shorten. At this time, the second movable plate 901 will drop accordingly, and drive the multiple second connecting rods 904 to deflect toward the outer side. At this time, the multiple fourth fixed seats 903 will move toward the outer side accordingly, and drive the multiple adsorption components 10 at the bottom to move toward the four corners of the thin plate.

[0036] like Figure 1 and Figure 4 as well as Figure 6 and Figure 7 As shown, the adsorption assembly 10 includes a second guide block 101, the second guide block 101 is movably connected to the second guide rail 6, the top of the second guide block 101 is connected to the bottom of the fourth fixed seat 903, the bottom of the second guide block 101 is fixedly installed with a mounting frame 102, the bottom of the mounting frame 102 is fixedly installed with a fixing sleeve 103, the middle part of the top of the fixing sleeve 103 is fixedly installed with an electromagnet 104, the inner movably sleeve of the fixing sleeve 103 is connected with a movable rod 105, the top of the movable rod 105 passes through the top of the fixing sleeve 103 and is fixedly connected with an upper The bottom end of the movable rod 105 passes through the bottom end of the electromagnet 104 and is fixedly mounted with a vacuum suction cup 108. A lower limit plate 107 is fixedly sleeved on the outer side of the movable rod 105 near the bottom end. A limit spring 109 is movably sleeved on the outer side of the movable rod 105. The upper and lower ends of the limit spring 109 are respectively connected to the bottom end of the fixed sleeve 103 and the top end of the lower limit plate 107. When the upper limit plate 106 and the electromagnet 104 are in a mutually adsorbed state, the vacuum suction cup 108 is at the lowest point and the limit spring 109 is in a stretched state.

[0037] Embodiment: When multiple adsorption components 10 are displaced to the four corners of the thin plate, the power of the electromagnet 104 can be turned on at this time, and suction is generated between the upper limit plates 106. At this time, the upper limit plates 106 and the electromagnet 104 are adsorbed on each other, which can drive the upper limit plates 106 and the movable rod 105 to move downward. At this time, the limit spring 109 is stretched and drives the vacuum suction cup 108 at the bottom to move downward. When the vacuum suction cup 108 and the bottom end of the thin plate are adsorbed on each other, the clamping is completed. At this time, the clamping component 8 can be controlled to automatically reset, the pre-clamping is released, and the adsorption and fixing process of the thin plate is completed through the adsorption component 10.

[0038] By utilizing the pre-clamping process of the device, the clamping center point is quickly determined, and by adjusting the component 9, the four adsorption components 10 are quickly moved to the four corners of the thin plate, and adsorption fixation is achieved through the action of the adsorption components 10. The whole process can be completed quickly, and after the adsorption fixation is completed, there is no need to use side clamping, which effectively avoids the problem of side damage and falling of the thin plate due to abnormal clamping force, and further improves the clamping stability.

[0039] When the thin plate is clamped and the performance test is completed, when it is necessary to discharge the material, the first movable plate 801 can be controlled to rise until the multiple first guide blocks 805 are relatively close to and contact the outer side of the thin plate, and the clamping process is completed. At this time, the power supply of the electromagnet 104 can be turned off, and the limit spring 109 automatically resets and drives the vacuum suction cup 108 to automatically rise, releasing the adsorption fixation. At this time, the thin plate can be changed from adsorption fixation to clamping fixation, until the thin plate is slowly placed on the conveyor belt, the clamping is released, and the discharge process is completed.

[0040] By utilizing the cooperation between the clamping component 8 and the adjusting component 9 and the adsorption component 10, the device can switch between the two states of adsorption fixation and clamping fixation, so that the device can be changed from adsorption fixation to clamping fixation during discharge, ensuring that the thin plate will not fall and be damaged due to the disappearance of the adsorption force, making the thin plate more stable during discharge and improving the discharge quality.

[0041] A clamping method for a clamping device for automatic alignment detection of thin plates, comprising the following steps: S1: Before use, the device needs to be connected to the external robot arm through the fixing ear plate 2. Before clamping, the device needs to be placed directly above the thin plate through the external robot arm, and it is necessary to ensure that the multiple clamping plates 806 are located on the outer side of the thin plate to complete the preparation before clamping; S2: During clamping, the first electric push rod 4 can be turned on and controlled to shorten, and the first movable plate 801 rises accordingly, and the first connecting rods 804 are driven to deflect, and the clamping plates 806 are relatively close to each other until the four clamping plates 806 are in contact with the outer side of the thin plate. At this time, the pre-clamping is completed, and the first movable plate 801 is located directly above the thin plate, and the center point is determined; S3: After the center point is determined, the second electric push rod 7 can be turned on and controlled to shorten, so as to drive the second movable plate 901 to descend. At this time, the plurality of second connecting rods 904 can be deflected toward the outer side surface, and drive the plurality of fourth fixing seats 903 to move toward the outer side surface, until the four adsorption components 10 move to the four corners of the thin plate, and the adjustment process is completed; S4: At this time, the electromagnet 104 is turned on to adsorb the upper limit plate 106, and the movable rod 105 is controlled to move downward, and the vacuum suction cup 108 at the bottom is driven to move downward until the vacuum suction cup 108 and the top of the thin plate are adsorbed on each other. After the adsorption is completed, the pre-clamping is released to complete the clamping process.

[0042] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A clamping device for automatic alignment detection of thin plates, comprising a top frame (1), characterized in that: A fixed ear plate (2) is fixedly mounted on the top end of the top frame (1), a mounting plate (3) is fixedly mounted on the bottom end of the top frame (1), a first guide rail (5) is fixedly mounted at an equal angle on the outer side surface of the mounting plate (3), a second guide rail (6) located between the two first guide rails (5) is fixedly mounted at an equal angle on the outer side surface of the mounting plate (3), a first electric push rod (4) is fixedly mounted on the top end of the inner cavity of the fixed ear plate (2), a clamping assembly (8) is movably clamped on the upper side of the first guide rail (5), and the first electric push rod (4) is fixedly mounted on the upper side of the first guide rail (5). The output end of the rod (4) is connected to the top end of the clamping assembly (8); an adjustment assembly (9) is provided between the second guide rail (6) and the clamping assembly (8); adsorption assemblies (10) are movably connected inside the second guide rail (6); the adsorption assemblies (10) are equiangularly distributed at the bottom end of the adjustment assembly (9) and are connected to the adjustment assembly (9); a second electric push rod (7) is fixedly mounted in the middle of the top end of the mounting plate (3); and the output end of the second electric push rod (7) is connected to the adjustment assembly (9).

2. The clamping device for automatic alignment detection of thin plates according to claim 1, characterized in that: The clamping assembly (8) comprises a first movable plate (801), a first fixed seat (802) being fixedly mounted at an equal angle on the bottom end of the first movable plate (801), and an end of the first fixed seat (802) away from the first movable plate (801) being movably connected to a first connecting rod (804) via a rotating shaft.

3. The clamping device for automatic alignment detection of thin plates according to claim 2, characterized in that: One end of the first connecting rod (804) away from the first fixing seat (802) is movably connected to the second fixing seat (803) via a rotating shaft, and a first guide block (805) is fixedly installed at the bottom end of the second fixing seat (803), and the first guide block (805) is movably connected to the first guide rail (5).

4. The clamping device for automatic alignment detection of thin plates according to claim 3 is characterized in that: The middle part of the top end of the first movable plate (801) is connected to the output end of the first electric push rod (4), and a clamping plate (806) is fixedly mounted on the bottom end of the first guide block (805).

5. The clamping device for automatic alignment detection of thin plates according to claim 4, characterized in that: The adjustment assembly (9) comprises a second movable plate (901), the second movable plate (901) being located between the first movable plate (801) and the mounting plate (3), a third fixing seat (902) being fixedly mounted at an equal angle on the bottom end of the second movable plate (901), and a second connecting rod (904) being fixedly mounted on one end of the third fixing seat (902) away from the second movable plate (901).

6. The clamping device for automatic alignment detection of thin plates according to claim 5, characterized in that: One end of the second connecting rod (904) away from the third fixed seat (902) is movably connected to the fourth fixed seat (903) via a rotating shaft, and the bottom end of the fourth fixed seat (903) is connected to the adsorption component (10). The fourth fixed seat (903) is located directly above the second guide rail (6) and has the same number as the second guide rail (6).

7. The clamping device for automatic alignment detection of thin plates according to claim 6, characterized in that: The adsorption assembly (10) comprises a second guide block (101), the second guide block (101) is movably connected to the second guide rail (6), the top end of the second guide block (101) is connected to the bottom end of the fourth fixed seat (903), the bottom end of the second guide block (101) is fixedly mounted with a mounting frame (102), and the bottom end of the mounting frame (102) is fixedly mounted with a fixing sleeve (103).

8. The clamping device for automatic alignment detection of thin plates according to claim 7, characterized in that: An electromagnet (104) is fixedly mounted in the middle of the top of the fixed sleeve (103); a movable rod (105) is movablely mounted inside the fixed sleeve (103); the top of the movable rod (105) passes through the top of the fixed sleeve (103) and is fixedly connected to an upper limit plate (106); the bottom of the movable rod (105) passes through the bottom of the electromagnet (104) and is fixedly mounted with a vacuum suction cup (108).

9. The clamping device for automatic alignment detection of thin plates according to claim 8, characterized in that: A lower limit plate (107) is fixedly sleeved on a position near the bottom end of the outer side surface of the movable rod (105); a limit spring (109) is movably sleeved on the outer side surface of the movable rod (105); the upper and lower ends of the limit spring (109) are respectively connected to the bottom end of the fixed sleeve (103) and the top end of the lower limit plate (107); when the upper limit plate (106) and the electromagnet (104) are in a mutually adsorbed state, the vacuum suction cup (108) is located at the lowest point and the limit spring (109) is in a stretched state.

10. A clamping method for a clamping device for automatic alignment detection of thin plates according to claim 9, characterized in that: The following steps are involved: S1: Before use, the device needs to be connected to the external mechanical arm through the fixing ear plate (2). Before clamping, the device needs to be placed directly above the thin plate through the external mechanical arm. At the same time, it needs to be ensured that the multiple clamping plates (806) are located on the outer side of the thin plate, completing the preparation before clamping; S2: During clamping, the first electric push rod (4) can be turned on and controlled to shorten, whereby the first movable plate (801) rises and drives the plurality of first connecting rods (804) to deflect, whereby the plurality of clamping plates (806) move relatively close to each other until all four clamping plates (806) are in contact with the outer side surface of the thin plate. At this time, the pre-clamping is completed and the first movable plate (801) is located directly above the thin plate, completing the determination of the center point. S3: After the center point is determined, the second electric push rod (7) can be turned on and controlled to shorten, thereby driving the second movable plate (901) to descend. At this time, the plurality of second connecting rods (904) can be deflected toward the outer side surface, and drive the plurality of fourth fixing seats (903) to move toward the outer side surface, until the four adsorption components (10) are moved to the four corners of the thin plate, thereby completing the adjustment process; S4: At this time, the electromagnet (104) is turned on to adsorb the upper limit plate (106), and the movable rod (105) is controlled to move downward, and the vacuum suction cup (108) at the bottom is driven to move downward until the vacuum suction cup (108) and the top of the thin plate are adsorbed on each other. After the adsorption is completed, the pre-clamping is released, and the clamping process is completed.

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