Ultrathin airfoil skin clamping device and machining process method

Abstract

The invention discloses an ultrathin airfoil skin clamping device and a machining process method, relates to the technical field of skin machining, and aims at solving the problems that in the prior art, an ultrathin skin is prone to falling off in the clamping process, and large adsorption traces exist on the surface. The ultrathin airfoil skin clamping device comprises a vacuum adsorption assembly, an auxiliary adsorption unit and an air exhaust hole, the vacuum adsorption assembly is connected with the air exhaust hole, and the auxiliary adsorption unit is connected with the vacuum adsorption assembly and used for transmitting suction force generated by the vacuum adsorption assembly. The ultrathin skin machining process method comprises the ultrathin airfoil skin clamping device. The adsorption fixing capacity of the ultrathin skin can be improved, large adsorption traces are prevented from being generated on the surface of the ultrathin skin, and therefore the machining quality and machining precision of the ultrathin skin are improved.

Description

Technical Field

[0001] The invention relates to the technical field of skin processing, and in particular to an ultra-thin wing surface skin clamping device and a processing method. Background Art

[0002] Ultra-thin skins are widely used in the field of aircraft. The use of ultra-thin skins can make the surface of the aircraft smoother and reduce air resistance, thereby improving the flight efficiency of the aircraft, reducing fuel consumption and protecting the internal structure and equipment.

[0003] However, the manufacturing of ultra-thin skins requires extremely high precision. During the processing, advanced CNC processing technology and precision molds are required to ensure the dimensional accuracy and surface quality of the skins. Especially during the clamping operation of ultra-thin skins, the ultra-thin skins are easily deformed, affecting the processing accuracy.

[0004] In the prior art, conventional clamping methods that mainly use pressure plate bolts make it easy for the ultra-thin skin to be deformed during clamping due to uneven force; if magnetic adsorption is used, uniform clamping can be achieved, but it is easy to cause the ultra-thin skin to fall off during processing and large adsorption marks to appear on the processed surface. Summary of the invention

[0005] In view of the above analysis, the present invention aims to provide an ultra-thin wing skin clamping device and a processing method to solve the problem in the prior art that the ultra-thin skin is easy to fall off during the clamping process and there are large adsorption marks on the surface.

[0006] The purpose of the present invention is mainly achieved through the following technical solutions:

[0007] On the one hand, the present invention provides an ultra-thin wing skin clamping device, including a vacuum adsorption assembly, an auxiliary adsorption unit and an exhaust hole, wherein the vacuum adsorption assembly is connected to the exhaust hole, and the auxiliary adsorption unit is connected to the vacuum adsorption assembly for transmitting the suction force generated by the vacuum adsorption assembly.

[0008] Furthermore, the vacuum adsorption assembly includes an adsorption platform, an adsorption groove and an air extraction channel. The adsorption groove and the air extraction channel are arranged in the adsorption platform, and the adsorption groove is connected with the air extraction hole through the air extraction channel.

[0009] Furthermore, the auxiliary adsorption unit includes an auxiliary adsorption platform, a vacuum groove, an auxiliary adsorption groove and an adsorption air duct. The vacuum groove is arranged at one end of the auxiliary adsorption platform, and the auxiliary adsorption groove is arranged at the other end. The vacuum groove is connected to the auxiliary adsorption groove through the adsorption air duct.

[0010] Furthermore, one end of the vacuum groove provided on the auxiliary adsorption platform is placed on the adsorption platform, and negative pressure adsorption force can be transmitted to the vacuum groove through the adsorption groove.

[0011] Furthermore, the ultra-thin skin is placed on one end of the auxiliary adsorption platform where the auxiliary adsorption groove is provided, and the auxiliary adsorption groove is used to fix the ultra-thin skin.

[0012] Furthermore, the auxiliary adsorption unit also includes a sealing component, and the sealing component includes a first sealing ring, and the first sealing ring is arranged around the auxiliary adsorption groove to maintain a sealed environment between the ultra-thin skin and the auxiliary adsorption groove.

[0013] Furthermore, the vacuum adsorption assembly also includes a sealing groove, and the sealing groove is arranged between the adsorption grooves.

[0014] Furthermore, the sealing assembly also includes a second sealing ring, which is arranged along the outer edge of the vacuum groove and can be inserted into the sealing groove.

[0015] Furthermore, the slot width of the auxiliary adsorption slot is smaller than the slot width of the adsorption slot.

[0016] Furthermore, the slot width of the auxiliary adsorption slot is determined by the following formula:

[0017]

[0018] Where, l is the width of the adsorption tank;

[0019] l'—the width of the auxiliary adsorption groove;

[0020] y' max —The maximum deformation height allowed for ultra-thin skin;

[0021] y max —The maximum deformation height of the ultra-thin skin when the ultra-thin skin is adsorbed using a vacuum adsorption component.

[0022] On the other hand, the present invention provides a processing method for an ultra-thin wing skin, which uses the ultra-thin wing skin clamping device to fix the ultra-thin skin. Further, the method comprises the following steps:

[0023] S1: Use vacuum adsorption components to pre-absorb ultra-thin skin;

[0024] S2: Design auxiliary adsorption unit;

[0025] S3: making auxiliary adsorption unit;

[0026] S4: Use auxiliary adsorption units to fix ultra-thin skin.

[0027] Furthermore, step S2 specifically includes:

[0028] S21: Measure the maximum deformation height y of the adsorption trace on the ultra-thin skin surface max ;

[0029] S22: measuring the groove width l and adsorption area of ​​the adsorption groove;

[0030] S23: Calculate the slot width l' of the auxiliary adsorption slot.

[0031] Furthermore, in step S23, specifically, the maximum deformation height y' allowed by the ultra-thin skin is determined according to the actual working conditions and manufacturing requirements. max , according to the formula The maximum deformation height y of the adsorption trace on the ultra-thin skin surface max , the width l of the adsorption groove and the maximum deformation height y' that the ultra-thin skin can allow max Substituting into the formula, the slot width l' of the auxiliary adsorption slot is calculated; the adsorption area of ​​the adsorption area composed of the auxiliary adsorption slot is determined according to the adsorption area of ​​the vacuum adsorption component when pre-adsorbing the ultra-thin skin, so that the adsorption area of ​​the adsorption area composed of the auxiliary adsorption slot is equal to the adsorption area when the adsorption slot adsorbs the ultra-thin skin.

[0032] Furthermore, step S4 specifically includes the following steps:

[0033] S41: inserting the second sealing ring into the sealing groove;

[0034] S42: placing the ultra-thin skin on the auxiliary adsorption platform;

[0035] S43: Air is extracted through the air extraction holes to fix the ultra-thin skin;

[0036] S44: Stop pumping air from the exhaust holes and remove the ultra-thin skin.

[0037] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0038] (1) The ultra-thin wing skin clamping device provided by the present invention, by providing a vacuum adsorption component, an auxiliary adsorption unit and an exhaust hole, transmits the suction force generated by the vacuum adsorption component to the auxiliary adsorption unit, and adsorbs the ultra-thin skin through the auxiliary adsorption unit, which can stably adsorb the ultra-thin skin and prevent the ultra-thin skin from being desorbed. The first sealing ring provided around the outer edge of the adsorption area formed by the auxiliary adsorption groove can maintain the sealing environment between the ultra-thin skin and the auxiliary adsorption groove, and the second sealing ring can be inserted into the sealing groove to maintain the sealing environment between the auxiliary adsorption unit and the vacuum adsorption component, thereby improving the adsorption and fixing ability of the ultra-thin skin and preventing the loss of negative pressure adsorption force during the transmission process.

[0039] (2) In the processing method of the ultra-thin wing skin provided by the present invention, in step S3: designing the auxiliary adsorption unit, the adsorption area of ​​the adsorption region composed of the auxiliary adsorption groove is made equal to the adsorption area when the adsorption groove adsorbs the ultra-thin skin, thereby ensuring that the ultra-thin skin is not desorbed when the auxiliary adsorption unit is used to fix the ultra-thin skin. The slot width of the auxiliary adsorption groove is determined according to the maximum deflection formula, thereby reducing the risk of the ultra-thin skin being sucked into the auxiliary adsorption groove by keeping the slot width smaller, reducing the deformation of the surface when the ultra-thin skin is adsorbed and fixed, thereby preventing large adsorption marks on the surface of the ultra-thin skin.

[0040] (3) The processing method of the ultra-thin wing skin provided by the present invention can ensure that the auxiliary adsorption unit does not desorb when adsorbing and fixing the ultra-thin skin by designing an auxiliary adsorption unit. Compared with the prior art, the adsorption area of ​​the adsorption area composed of the auxiliary adsorption groove and the groove width of the auxiliary adsorption groove are obtained by calculation. The design parameters of the auxiliary adsorption unit obtained by calculation can prevent large adsorption marks from being generated on the surface of the ultra-thin skin, thereby improving the processing quality and processing accuracy of the ultra-thin skin. When using the ultra-thin wing skin clamping device to adsorb and fix the ultra-thin skin, the operation is simple. It only needs to evacuate the air through the exhaust hole to allow the negative pressure adsorption force to be transmitted to the auxiliary adsorption groove through the adsorption groove via the adsorption air duct to adsorb the ultra-thin skin. The operation is simple, the structure is simple, and it has good stability and sealing.

[0041] In the present invention, the above-mentioned technical solutions can also be combined with each other to achieve more preferred combination solutions. Other features and advantages of the present invention will be described in the subsequent description, and some advantages can become obvious from the description, or can be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained through the contents particularly pointed out in the embodiments of the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The accompanying drawings are only for the purpose of illustrating the particular invention and are not to be considered as limiting the invention. The same reference symbols denote the same components throughout the accompanying drawings.

[0043] Figure 1 This is a schematic diagram of the overall structure of the ultra-thin wing skin clamping device according to Example 1 of the present invention;

[0044] Figure 2 This is a schematic diagram of the internal structure of the vacuum adsorption assembly of Example 1 of the present invention;

[0045] Figure 3 This is a schematic diagram of the internal structure of the auxiliary adsorption unit of Example 1 of the present invention;

[0046] Figure 4It is a schematic flow chart of a processing method for an ultra-thin wing surface skin according to Embodiment 2 of the present invention;

[0047] Figure 5 This is a schematic flow chart of step S2 of embodiment 2 of the present invention;

[0048] Figure 6 Schematic diagram of the process of step S4 of embodiment 2 of the present invention.

[0049] Reference numerals:

[0050] 1-vacuum adsorption assembly; 11-adsorption platform; 12-sealing groove; 13-adsorption groove; 14-exhaust channel; 2-auxiliary adsorption unit; 21-auxiliary adsorption support platform; 22-vacuum groove; 23-auxiliary adsorption groove; 24-adsorption airway; 25-sealing assembly; 251-first sealing ring; 252-second sealing ring; 3-exhaust hole; 4-ultra-thin skin. DETAILED DESCRIPTION

[0051] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present invention and are used to explain the principles of the present invention together with the present invention.

[0052] Example 1

[0053] This embodiment provides an ultra-thin wing skin clamping device for clamping ultra-thin wing skin or other types of ultra-thin skin, such as Figure 1 As shown, it includes a vacuum adsorption component 1, an auxiliary adsorption unit 2 and an air extraction hole 3. The vacuum adsorption component 1 is connected to the air extraction hole 3. The vacuum adsorption component 1 can be evacuated through the air extraction hole 3. The auxiliary adsorption unit 2 is connected to the vacuum adsorption component 1 to transfer the suction force generated by the vacuum adsorption component 1, so as to fix the ultra-thin skin 4 with a thickness of 0.1mm to 0.5mm on the auxiliary adsorption unit 2. Further, as Figure 1-2 As shown, the vacuum adsorption assembly 1 includes an adsorption platform 11, a sealing groove 12, an adsorption groove 13 and an exhaust channel 14. The adsorption groove 13 and the exhaust channel 14 are arranged in the adsorption platform 11. A plurality of adsorption grooves 13 are arranged. The adsorption groove 13 is connected to the exhaust hole 3 through the exhaust channel 14. The sealing groove 12 is arranged between the adsorption grooves 13. Exhausting air through the exhaust hole 3 can generate a negative pressure adsorption force in the adsorption groove 13 through the exhaust channel 14.

[0054] like Figure 3As shown, the auxiliary adsorption unit 2 includes an auxiliary adsorption platform 21, a vacuum groove 22, an auxiliary adsorption groove 23 and an adsorption airway 24. The vacuum groove 22 is arranged at one end of the auxiliary adsorption platform 21, and a plurality of auxiliary adsorption grooves 23 are arranged at the other end. The plurality of auxiliary adsorption grooves 23 form an adsorption area, and the vacuum groove 22 is connected with the auxiliary adsorption groove 23 through the adsorption airway 24. One end of the auxiliary adsorption platform 21 provided with the vacuum groove 22 is placed on the adsorption platform 11, so that the vacuum groove 22 cooperates with the adsorption groove 13, and the negative pressure adsorption force can be transmitted to the vacuum groove 22 through the adsorption groove 13; the adsorption area formed by the auxiliary adsorption groove 23 is used to adsorb and fix the ultra-thin skin 4, and the ultra-thin skin 4 is placed on the auxiliary adsorption platform 21, so that the adsorption area formed by the auxiliary adsorption groove 23 cooperates with the ultra-thin skin 4, and the vacuum groove 22 transmits the negative pressure adsorption force transmitted by the adsorption groove 13 to the auxiliary adsorption groove 23 through the adsorption airway 24, thereby adsorbing and fixing the ultra-thin skin 4 through the auxiliary adsorption groove 23.

[0055] Furthermore, the auxiliary adsorption unit 2 further includes a sealing assembly 25, which includes a first sealing ring 251 and a second sealing ring 252, and the first sealing ring 251 and the second sealing ring 252 are connected to the auxiliary adsorption support 21. The first sealing ring 251 is arranged around the outer edge of the adsorption area formed by the auxiliary adsorption groove 23, and is used to maintain the sealing environment between the ultra-thin skin 4 and the auxiliary adsorption groove 23; the second sealing ring 252 is arranged along the outer edge of the vacuum groove 22, and the second sealing ring 252 can be inserted into the sealing groove 12, so as to maintain the sealing environment between the auxiliary adsorption unit 2 and the vacuum adsorption assembly 1.

[0056] Preferably, an adsorption sealing groove is provided at the outer edge of the adsorption area formed by the auxiliary adsorption groove 23 , and the first sealing ring 251 is provided in the adsorption sealing groove, thereby increasing the stability of the connection between the first sealing ring 251 and the auxiliary adsorption support 21 .

[0057] Preferably, the size of the first sealing ring 251 is 2 mm to 4 mm smaller than the outer edge of the ultra-thin skin 4 , thereby improving the sealing effect between the adsorption area formed by the ultra-thin skin 4 and the auxiliary adsorption groove 23 .

[0058] Furthermore, the slot width of the auxiliary adsorption slot 23 is smaller than the slot width of the adsorption slot, thereby reducing adsorption marks on the surface of the ultra-thin skin 4 while ensuring that the ultra-thin skin 4 does not desorb.

[0059] When the slot width of the auxiliary adsorption slot 23 is small, the auxiliary adsorption platform 21 can provide better support for the ultra-thin skin 4 , thereby preventing the ultra-thin skin 4 from being sucked into the auxiliary adsorption slot 23 and causing significant deformation on the surface of the ultra-thin skin 4 .

[0060] Furthermore, the slot width of the auxiliary adsorption slot 23 is determined by the following formula:

[0061] According to the maximum deflection formula, when the ultra-thin skin 4 is adsorbed by the vacuum adsorption assembly 1, the maximum deformation height of the ultra-thin skin 4 is;

[0062]

[0063] The maximum deformation height allowed by the ultra-thin skin 4 is:

[0064]

[0065] By transforming the formula we get:

[0066]

[0067] Wherein, l is the width of the adsorption tank 13;

[0068] l'—the width of the auxiliary adsorption groove 23;

[0069] y' max —The maximum deformation height allowed by the ultra-thin skin 4;

[0070] y max —The maximum deformation height of the ultra-thin skin 4 when the ultra-thin skin 4 is adsorbed by the vacuum adsorption assembly 1;

[0071] F—adsorption force;

[0072] E—elastic modulus of ultra-thin skin 4;

[0073] I—moment of inertia;

[0074] It can be understood that E and I are properties of the material itself. For the ultra-thin skin 4 made of the same material, the values ​​of E and I are fixed constants.

[0075] For example, y' max =0.02mm.

[0076] Place the auxiliary adsorption unit 2 on the vacuum adsorption component 1, insert the second sealing ring 252 into the sealing groove 12, use the vacuum hole 3 to evacuate the vacuum adsorption component 1, and the adsorption groove 13 transfers the negative pressure adsorption force to the auxiliary adsorption groove 23 via the adsorption air duct 24 to adsorb the ultra-thin skin 4.

[0077] By setting the auxiliary adsorption unit 2, the maximum deformation height of the ultra-thin skin 4 can be controlled. Under the premise of ensuring that the ultra-thin skin 4 is not desorbed, the risk of the ultra-thin skin 4 being sucked into the auxiliary adsorption groove 23 is reduced, and the surface deformation of the ultra-thin skin 4 when it is adsorbed and fixed is reduced, thereby preventing large adsorption marks on the surface of the ultra-thin skin 4 and improving the apparent quality and flatness of the ultra-thin skin 4.

[0078] Example 2

[0079] This embodiment provides a processing method for ultra-thin wing skin, using an ultra-thin wing skin clamping device, such as Figure 4 As shown, the following steps are included:

[0080] S1: using a vacuum adsorption component 1 to pre-adsorb an ultra-thin skin 4;

[0081] S2: Design auxiliary adsorption unit 2;

[0082] S3: making auxiliary adsorption unit 2;

[0083] S4: Use the auxiliary adsorption unit 2 to fix the ultra-thin skin 4.

[0084] In step S1, the ultra-thin skin 4 is placed on the adsorption platform 11, and the vacuum adsorption assembly 1 is evacuated through the exhaust holes 3, so that the adsorption grooves 13 adsorb and fix the ultra-thin skin 4, and the minimum adsorption force F that prevents the ultra-thin skin 4 from being desorbed is determined.

[0085] Furthermore, if Figure 5 As shown, step S2 specifically includes:

[0086] S21: Measure the maximum deformation height y of the adsorption trace on the surface of the ultra-thin skin 4 max ;

[0087] S22: measuring the groove width l and adsorption area of ​​the adsorption groove 13;

[0088] S23: Calculate the groove width l' of the auxiliary adsorption groove 23.

[0089] In step S21, specifically, the vacuum hole 3 is stopped to evacuate air, so that the vacuum adsorption component 1 releases the adsorption and fixation of the ultra-thin skin 4, and the ultra-thin skin 4 is removed from the vacuum adsorption component 1, and the adsorption marks on the surface of the ultra-thin skin 4 are measured to obtain the maximum deformation height y of the adsorption marks on the surface of the ultra-thin skin 4. max .

[0090] In step S22, the groove width l of the adsorption groove 13 is measured, and the adsorption area of ​​the vacuum adsorption assembly 1 pre-adsorbing the ultra-thin skin 4 is measured.

[0091] In step S23, specifically, the maximum deformation height y' allowed by the ultra-thin skin 4 is determined according to the actual working conditions and manufacturing requirements. max , according to the formula

[0092]

[0093] The maximum deformation height y of the adsorption trace on the surface of the ultra-thin skin 4 max , the width l of the adsorption groove 13 and the maximum deformation height y' that the ultra-thin skin 4 can allow maxSubstituting into the formula, the groove width l' of the auxiliary adsorption groove 23 is calculated; since the adsorption area determines the size of the adsorption force, the adsorption area of ​​the adsorption area composed of the auxiliary adsorption groove 23 is determined according to the adsorption area when the vacuum adsorption component 1 pre-adsorbs the ultra-thin skin 4, so that the adsorption area of ​​the adsorption area composed of the auxiliary adsorption groove 23 is equal to the adsorption area when the adsorption groove 13 adsorbs the ultra-thin skin 4, thereby ensuring that the ultra-thin skin 4 is not desorbed when the auxiliary adsorption unit 2 is used to fix it.

[0094] In step S3, specifically, the shape and size of the auxiliary adsorption unit 2 are determined according to the size of the ultra-thin skin 4, the groove width l' of the auxiliary adsorption groove 23, and the adsorption area when the vacuum adsorption assembly 1 pre-adsorbs the ultra-thin skin 4, the design parameters of the auxiliary adsorption unit 2 are obtained, and the auxiliary adsorption unit 2 is manufactured according to the design parameters of the auxiliary adsorption unit 2.

[0095] Furthermore, if Figure 6 As shown, step S4 specifically includes the following steps:

[0096] S41: inserting the second sealing ring 252 into the sealing groove 12;

[0097] S42: placing the ultra-thin skin 4 on the auxiliary adsorption support 21;

[0098] S43: exhaust air through the exhaust hole 3 to fix the ultra-thin skin 4;

[0099] S44: Stop exhausting the exhaust hole 3 and remove the ultra-thin skin 4.

[0100] In step S41 , specifically, the second sealing ring 252 is inserted into the sealing groove 12 , so that the auxiliary adsorption unit 2 is connected to the vacuum adsorption assembly 1 , and the vacuum groove 22 and the adsorption groove 13 are kept in a sealed state.

[0101] In step S42, specifically, an adsorption sealing groove is set along the adsorption area formed by the auxiliary adsorption grooves 23, the first sealing ring 251 is inserted into the adsorption sealing groove, and the ultra-thin skin 4 is placed on the auxiliary adsorption platform 21 so that the position of the ultra-thin skin 4 corresponds to the adsorption area formed by the auxiliary adsorption grooves 23, and the adsorption area formed by the ultra-thin skin 4 and the auxiliary adsorption grooves 23 is sealed by the first sealing ring 251.

[0102] In step S43, specifically, the vacuum adsorption assembly 1 is evacuated through the exhaust hole 3, so that the negative pressure adsorption force generated by the vacuum adsorption assembly 1 is transmitted from the adsorption groove 13 to the auxiliary adsorption groove 23 through the vacuum groove 22 and the adsorption air duct 24, and the ultra-thin skin 4 is adsorbed and fixed through the auxiliary adsorption groove 23.

[0103] In step S44, specifically, after the processing of the ultra-thin skin 4 is completed, the air extraction through the exhaust hole 3 is stopped, so that the auxiliary adsorption groove 23 stops adsorbing and fixing the ultra-thin skin 4, and the ultra-thin skin 4 is removed to carry out the next processing flow.

[0104] Compared with the prior art, the processing method of the ultra-thin wing skin provided by the present invention obtains the design parameters of the auxiliary adsorption unit 2 through step S2, thereby controlling the adsorption capacity of the auxiliary adsorption unit 2 and the maximum deformation height of the ultra-thin skin 4, thereby preventing large adsorption marks from being generated on the surface of the ultra-thin skin 4 while ensuring that the ultra-thin skin 4 is not desorbed, thereby improving the processing quality and processing accuracy of the ultra-thin skin 4 and simplifying the operation.

[0105] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. An ultra-thin wing skin clamping device, characterized in that: It comprises a vacuum adsorption component (1), an auxiliary adsorption unit (2) and an air suction hole (3), wherein the vacuum adsorption component (1) is connected to the air suction hole (3), and the auxiliary adsorption unit (2) is connected to the vacuum adsorption component (1) for transmitting the suction force generated by the vacuum adsorption component (1).

2. The ultra-thin wing skin clamping device according to claim 1 is characterized in that: The vacuum adsorption component (1) comprises an adsorption platform (11), an adsorption groove (13) and an air extraction channel (14); the adsorption groove (13) and the air extraction channel (14) are arranged in the adsorption platform (11); the adsorption groove (13) is connected to the air extraction hole (3) through the air extraction channel (14).

3. The ultra-thin wing skin clamping device according to claim 2 is characterized in that: The auxiliary adsorption unit (2) comprises an auxiliary adsorption platform (21), a vacuum groove (22), an auxiliary adsorption groove (23) and an adsorption air duct (24); the vacuum groove (22) is arranged at one end of the auxiliary adsorption platform (21), and the auxiliary adsorption groove (23) is arranged at the other end; the vacuum groove (22) is connected to the auxiliary adsorption groove (23) via the adsorption air duct (24).

4. The ultra-thin wing skin clamping device according to claim 3 is characterized in that: One end of the auxiliary adsorption platform (21) on which the vacuum groove (22) is arranged is placed on the adsorption platform (11), and negative pressure adsorption force can be transmitted to the vacuum groove (22) through the adsorption groove (13).

5. The ultra-thin wing skin clamping device according to claim 4 is characterized in that: The ultra-thin skin (4) is placed on one end of the auxiliary adsorption platform (21) where the auxiliary adsorption groove (23) is provided, and the auxiliary adsorption groove (23) is used to fix the ultra-thin skin (4).

6. The ultra-thin wing skin clamping device according to claim 5, characterized in that: The auxiliary adsorption unit (2) further comprises a sealing component (25), wherein the sealing component (25) comprises a first sealing ring (251), wherein the first sealing ring (251) is arranged around the auxiliary adsorption groove (23) and is used to maintain a sealed environment between the ultra-thin skin (4) and the auxiliary adsorption groove (23).

7. The ultra-thin wing skin clamping device according to claim 6, characterized in that: The vacuum adsorption assembly (1) further comprises a sealing groove (12), wherein the sealing groove (12) is arranged between the adsorption grooves (13).

8. The ultra-thin wing skin clamping device according to claim 7, characterized in that: The sealing assembly (25) further comprises a second sealing ring (252), wherein the second sealing ring (252) is arranged along the outer edge of the vacuum groove (22), and the second sealing ring (252) can be inserted into the sealing groove (12).

9. The ultra-thin wing skin clamping device according to any one of claims 3 to 8, characterized in that: The auxiliary adsorption groove (23) has a groove width smaller than the groove width of the adsorption groove (13).

10. A processing method for ultra-thin wing skin, characterized in that: The ultra-thin wing skin clamping device described in claim 9 is used to fix the ultra-thin skin (4).

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