Pressurizing device and pressurizing method for composite material bonding process

Abstract

The embodiment of the invention discloses a pressurizing device and a pressurizing method for a composite material bonding process, and relates to the technical field of aircraft assembling.The pressurizing device and the pressurizing method have the advantages that two pressurizing modules are arranged, the two pressurizing modules are used for fitting parts through pressurizing plates, and after the pressurizing plates are fitted, the parts are pressed; stable pressurization on the attached part is achieved through the magnetic force between the first permanent magnet and the second permanent magnet, no hole needs to be formed in the part, the pressurization area is increased through the pressurization plate, the adjusting mechanism is further arranged in the first pressurization module, the distance between the first permanent magnet and the first pressurization plate can be adjusted, and the pressurization effect is improved. Equivalently, the distance between the two permanent magnets is changed, so that the pressurization pressure is adjusted, and the pressurization effect of the device is improved.

Description

Technical Field

[0001] The present application relates to the technical field of aircraft assembly, and particularly relates to a pressurizing device and a pressurizing method for a composite material bonding process. Background Art

[0002] In order to meet the requirements of light weight and high strength of an aircraft, the connection form of the structure in the aircraft assembly process has gradually changed from mechanical connection to bonding connection. The bonding technology is a new non-opening connection technology in the current aircraft assembly field. After being connected by an adhesive on the surface of a composite material part, it usually needs to be heated and pressurized for curing, so as to enable the structure to achieve reliable bonding performance. In order to ensure the bonding strength and quality of the structure, the curing pressurizing process is particularly important.

[0003] However, the effect of the existing pressurizing methods is poor. On the one hand, it is necessary to customize a pressurizing tooling according to the part, with high cost and cumbersome maintenance. On the other hand, for some clamping and pressurizing methods, due to the small contact area of the pressurizing surface, it is also necessary to open holes in the structure, and the quality of the bonding process cannot be guaranteed. Summary of the Invention

[0004] The main purpose of the present application is to provide a pressurizing device and a pressurizing method for a composite material bonding process, aiming to solve the problem that the effect of the existing pressurizing methods is poor.

[0005] To achieve the above purpose, the technical solutions adopted in the embodiments of the present application are as follows:

[0006] In a first aspect, an embodiment of the present application provides a pressurizing device for a composite material bonding process, including: a first pressurizing module and a second pressurizing module. The first pressurizing module includes a first housing, a first permanent magnet, a first pressurizing plate, and an adjusting mechanism. The second pressurizing module includes a second housing, a second permanent magnet, and a second pressurizing plate, wherein:

[0007] The first permanent magnet is arranged in the first housing. The first pressurizing plate is arranged at the second end of the first housing, and the axis of the first pressurizing plate coincides with the axis of the first housing. The adjusting mechanism is used to adjust the distance between the first permanent magnet and the first pressurizing plate;

[0008] The second permanent magnet is arranged in the second housing. The second pressurizing plate is arranged at the first end of the second housing, and the axis of the second pressurizing plate coincides with the axis of the second housing;

[0009] The gap between the first pressurizing plate and the second pressurizing plate is used to place the part to be pressurized.

[0010] In a possible implementation manner of the first aspect, the adjusting mechanism includes an adjusting screw rod and a connecting mechanism arranged coaxially. The adjusting screw rod is threadedly connected to the first housing. The second end of the adjusting screw rod penetrates through the top of the first housing from outside to inside and is connected to the first end of the connecting structure. The second end of the connecting mechanism is connected to the first permanent magnet.

[0011] In a possible implementation manner of the first aspect, the connecting mechanism includes a connecting block and a connecting rod. A ball head is arranged at the second end of the adjusting screw rod. The second end of the adjusting screw rod is ball-head connected to the first end of the connecting block. A sliding groove matching the shape of the connecting block is arranged at the top of the first housing. The second end of the connecting block is connected to the first end of the connecting rod. The second end of the connecting rod is connected to the first permanent magnet.

[0012] In a possible implementation manner of the first aspect, the connecting mechanism further includes a tension sensor. The second end of the connecting block is connected to the first end of the connecting rod through the tension sensor.

[0013] In a possible implementation manner of the first aspect, the connecting block includes a fixed block and a limiting block. The cross section of the fixed block is L-shaped. Concave arc grooves are arranged on the opposite surfaces of the fixed block and the limiting block. When the fixed block and the limiting block form the connecting block, the arc grooves form a ball head groove.

[0014] In a possible implementation manner of the first aspect, the pressurizing device further includes an RFID reader. RFID tags are arranged on both the first pressing plate and the second pressing plate. The RFID reader is used to read the RFID tags to identify the area of the pressing plate.

[0015] In a possible implementation manner of the first aspect, both the first pressurizing module and the second pressurizing module include positioning mechanisms, which are respectively used for positioning the connection between the first pressing plate and the first housing, and positioning the connection between the second pressing plate and the second housing.

[0016] In a possible implementation manner of the first aspect, a rotating handle is arranged at the first end of the adjusting screw rod.

[0017] In the second aspect, an embodiment of the present application provides a pressurizing method for a composite material bonding process, using the pressurizing device for a composite material bonding process provided in any one of the above first aspects, including the following steps:

[0018] Adjust the first permanent magnet of the first pressurizing module to the position farthest from the first pressing plate through the adjusting mechanism;

[0019] Attach the second pressurizing module to one side surface of the part to be pressurized, and attach the first pressurizing module to the other side surface of the part to be pressurized;

[0020] Adjust the position of the first permanent magnet through the adjusting mechanism to change the pressure exerted by the first pressing plate and the second pressing plate on the surface of the part to be pressed until the pressure meets the pressing condition.

[0021] In a possible implementation manner of the second aspect, before adjusting the position of the first permanent magnet through the adjusting mechanism to change the pressure exerted by the first pressing plate and the second pressing plate on the surface of the part to be pressed until the pressure meets the pressing condition, the pressing method further includes:

[0022] Obtain the attractive force between the first permanent magnet and the second permanent magnet through a tensile force sensor, and read the RFID tag through an RFID reader to identify the area of the pressing plate;

[0023] Obtain the pressure exerted by the first pressing plate and the second pressing plate on the surface of the part to be pressed according to the ratio of the attractive force to the area of the pressing plate.

[0024] Compared with the prior art, the beneficial effects of this application are:

[0025] A pressing device and a pressing method for a composite material bonding process provided by an embodiment of this application. By setting two pressing modules, the two pressing modules realize the fitting of the part through the pressing plate. After the pressing plate is fitted, the stable pressing of the fitted part is realized through the magnetic force between the first permanent magnet and the second permanent magnet. There is no need to drill holes in the part, and the pressing area is increased by using the pressing plate. Since an adjusting mechanism is also provided in the first pressing module, the distance between the first permanent magnet and the first pressing plate can be adjusted, which is equivalent to changing the distance between the two permanent magnets, thereby realizing the adjustment of the pressing pressure and improving the pressing effect of the device. Description of the Drawings

[0026] Figure 1 It is a schematic structural diagram of a pressing device for a composite material bonding process provided by an embodiment of this application;

[0027] Figure 2 It is a front view structural diagram of a pressing device for a composite material bonding process provided by an embodiment of this application;

[0028] Figure 3 It is a side perspective view of a pressing device for a composite material bonding process provided by an embodiment of this application;

[0029] Figure 4 It is a front perspective view of a pressing device for a composite material bonding process provided by an embodiment of this application;

[0030] Figure 5 It is an exploded view of the first pressing module in a pressing device for a composite material bonding process provided by an embodiment of this application;

[0031] Figure 6 Explosion diagram of the second pressurizing module in the pressurizing device for composite material bonding process provided by the embodiment of the present application;

[0032] Figure 7 Schematic diagram of the pressurizing device for composite material bonding process provided by the embodiment of the present application when used in combination with parts of different sizes;

[0033] Figure 8 Schematic diagram of selecting a pressure plate for the pressurizing device for composite material bonding process provided by the embodiment of the present application;

[0034] Figure 9 Schematic flow chart of the pressurizing method for composite material bonding process provided by the embodiment of the present application;

[0035] Markings in the figure: 1 - First housing, 2 - First pressure plate, 3 - Second housing, 4 - Second pressure plate, 5 - Adjusting screw, 6 - First thread, 7 - First screw, 8 - Second screw, 9 - Fixed block, 10 - Limiting block, 11 - Chute, 12 - Third screw, 13 - Tensile sensor, 14 - Second thread, 15 - Connecting rod, 16 - Third thread, 17 - First permanent magnet, 18 - Fourth thread, 20 - Fourth screw, 21 - Battery slot, 22 - Control circuit slot, 23 - Display, 24 - RFID reader / writer, 25 - Control button module, 26 - Pressure plate status indicator module, 27 - First RFID tag, 28 - First positioning hole, 29 - First positioning ball, 30 - Second positioning ball, 31 - Second permanent magnet, 32 - Second positioning hole, 33 - Second RFID tag. Detailed implementation manners

[0036] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0037] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present application are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0038] In this application, unless otherwise clearly specified or limited, terms such as "connection" and "fixation" shall be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0039] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of this application, such descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text includes three parallel scenarios. Taking "A and / or B" as an example, it includes Scenario A, or Scenario B, or the scenario where both A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0040] In order to meet the requirements of light weight and high strength of the aircraft, the connection form of the structure in the aircraft assembly process has gradually changed from mechanical connection to adhesive bonding connection. Adhesive bonding technology is a new non-opening connection technology in the current aircraft assembly field. After being connected by an adhesive on the surface of composite parts, it usually needs to be cured by heating and pressurization to enable the structure to achieve reliable bonding performance. In order to ensure the bonding strength and quality of the structure, the curing and pressurization process is particularly important.

[0041] Currently, the commonly used pressurization methods are generally special pressurization tooling, sealed pressurization bags, etc. Among them, the special pressurization tooling needs to be customized according to the size and shape of the parts, and has disadvantages such as high cost, cumbersome use and maintenance processes, etc.; on the one hand, the pressure applied by vacuum pressurization cannot exceed 0.06 MPa, while the adhesive bonding curing pressure usually needs to reach 0.1 MPa - 0.2 MPa. Therefore, quality problems such as air bubbles and debonding are likely to occur in adhesive bonded parts. On the other hand, it cannot resist high temperature during the pressurization process, resulting in an extended pressurization time, and it needs to be used in cooperation with a vacuum pump, with high cost and difficult maintenance, and it is difficult to operate for the pressurization of large parts. In addition, there are some clamping pressurization methods, but due to the small contact area with the pressurization surface, it is often necessary to open holes in the structure, and due to the large area of the parts, the clamping effect is poor, and the quality of the adhesive bonding process cannot be guaranteed.

[0042] For an invention application with the application number CN109502046A and the name "A Magnetic Pressurization Method for Adhesive Patch Repair in a Narrow Space", in this method, a magnet and a steel plate with a certain shape after processing are respectively placed into the fuel tank covers on both sides of the load-bearing member from the fuel tank openings on both sides of the load-bearing member, so that the two are tightly adsorbed on both sides of the wall plate of the load-bearing member for curing and pressurization. Although this method has a simple process and is easy to operate, the process of controlling the pressure by adjusting the thickness of the steel plate with the magnet is uncontrollable, which is likely to cause damage to parts. Moreover, it is necessary to customize steel plates with different thicknesses, which is costly and difficult to maintain, and is not suitable for adhesive pressurization and curing of large-area parts.

[0043] Another example is an invention application with the application number CN108706106A and the name "An Aircraft Landing Gear Beam Adhesive Pressurization Device and Its Usage Method". This device adopts a method of matching a pressing plate with an irregular shape and a special-shaped plate, and applies pressure by setting knurled screws between the upper pressing device and the lower pressing device. However, the pressure applied by this method cannot be detected, and it is impossible to ensure whether the pressurization pressure is within the allowable range.

[0044] Therefore, an embodiment of the present application provides a pressurization device for a composite material bonding process, as shown in the attached Figure 1 - attached Figure 6 figure, which includes: a first pressurization module and a second pressurization module. The first pressurization module includes a first housing 1, a first permanent magnet 17, a first pressing plate 2, and an adjusting mechanism. The second pressurization module includes a second housing 3, a second permanent magnet 31, and a second pressing plate 4. Among them: the first permanent magnet 17 is arranged in the first housing 1, the first pressing plate 2 is arranged at the second end of the first housing 1, and the axis of the first pressing plate 2 coincides with the axis of the first housing 1. The adjusting mechanism is used to adjust the distance between the first permanent magnet 17 and the first pressing plate 2; the second permanent magnet 31 is arranged in the second housing 3, the second pressing plate 4 is arranged at the first end of the second housing 3, and the axis of the second pressing plate 4 coincides with the axis of the second housing 3; the gap between the first pressing plate 2 and the second pressing plate 4 is used to place the part to be pressurized.

[0045] It should be noted that the first end and the second end of the components described in this embodiment are described based on the vertical state shown in the attached drawings. That is, in the vertical direction, the upper end of the component is its first end, and the lower end is its second end.

[0046] In this embodiment, by setting two pressurizing modules, the two pressurizing modules realize the fitting of parts through a pressure plate. After the pressure plate is fitted, the stable pressurization of the fitted parts is realized through the magnetic force between the first permanent magnet 17 and the second permanent magnet 31. There is no need to drill holes in the parts, and the pressurizing area is increased by using the pressure plate. Since an adjusting mechanism is also provided in the first pressurizing module, the distance between the first permanent magnet 17 and the first pressure plate 2 can be adjusted, which is equivalent to changing the distance between the two permanent magnets, thereby realizing the adjustment of the pressurizing pressure and improving the pressurizing effect of the device.

[0047] In one embodiment, as shown in the attached Figure 3 - attached Figure 5 figure, the adjusting mechanism includes an adjusting screw 5 and a connecting mechanism arranged coaxially. The adjusting screw 5 is threadedly connected to the first housing 1. The second end of the adjusting screw 5 penetrates the top of the first housing 1 from the outside to the inside and is connected to the first end of the connecting structure. The second end of the connecting mechanism is connected to the first permanent magnet 17. As described above, an embodiment of the adjusting mechanism is provided. By setting the adjusting screw 5, the adjusting screw 5 is threadedly connected to the first housing 1 through the first thread 6, so that when it is screwed out / into the spiral, it can drive the first permanent magnet 17 to move up / down synchronously through the connecting structure, realizing the first permanent magnet 17 moving away from / approaching the first pressure plate 2 and realizing the adjustment of the magnetic force between the permanent magnets. Further, a rotating handle is provided at the first end of the adjusting screw 5 to more conveniently apply the rotating force of the screw.

[0048] In other embodiments, the adjusting mechanism can also be a backing plate. By adding a backing plate such as an iron plate or a rubber plate between the first permanent magnet 17 and the first pressure plate 2, the distance between the first permanent magnet 17 and the first pressure plate 2 is increased.

[0049] In one embodiment, as shown in the attached Figure 3 - attached Figure 5 figure, the connecting mechanism includes a connecting block and a connecting rod 15. A ball head is provided at the second end of the adjusting screw 5. The second end of the adjusting screw 5 is ball-connected to the first end of the connecting block. A sliding groove 11 matching the shape of the connecting block is provided at the top of the first housing 1. The second end of the connecting block is connected to the first end of the connecting rod 15. The second end of the connecting rod 15 is connected to the first permanent magnet 17. As described above, the adjusting screw 5 is set to be ball-connected to the connecting block, so that when the adjusting screw 5 is rotated and adjusted, the lower connecting structure and the first permanent magnet 17 will not rotate accordingly, ensuring the stability of pressurization. And when adjusting, the connecting block slides in the sliding groove 11, further ensuring the stability of the up and down movement. In addition, the connecting rod 15 can be detachably connected to the first permanent magnet 17 through the fourth thread 18.

[0050] In one embodiment, as shown in the attached Figure 3 - attached Figure 5As shown in the figure, the connecting mechanism further includes a tension sensor 13. The second end of the connecting block is connected to the first end of the connecting rod 15 through the tension sensor 13. The second end of the connecting block can be threadedly connected to the tension sensor 13 through the second thread 14, and the first end of the connecting rod 15 can be threadedly connected to the tension sensor 13 through the third thread 16. As in the above embodiment, the tension sensor 13 is added to the connecting mechanism, and the magnitude of the magnetic force can be reflected through the tension sensor 13.

[0051] In one embodiment, as shown in the attached Figure 5 figure, the connecting block includes a fixed block 9 and a limiting block 10. The cross-section of the fixed block 9 is L-shaped. Concave arc grooves are provided on the opposite surfaces of the fixed block 9 and the limiting block 10, so that when the fixed block 9 and the limiting block 10 form a connecting block, the arc grooves form a ball head groove. As in the above embodiment, the fixed block 9 and the limiting block 10 can be connected and fixed by the first screw 7 to form a connecting block, and the ball head connection with the adjusting screw 5 can be realized by disassembly.

[0052] In one embodiment, as shown in the attached Figure 5 figure, the pressurizing device further includes an RFID reader 24. RFID tags are provided on both the first pressing plate 2 and the second pressing plate 4 to identify the information of the pressing plates. Specifically, a first RFID tag 27 is provided on the first pressing plate 2, and a second RFID tag 33 is provided on the second pressing plate 4. The RFID tags are both arranged directly below the RFID reader 24. The RFID reader 24 has two built-in reading and writing units, which are connected to the first housing 1 through the fourth screw 20 and are used to read the RFID tags respectively to identify the area of the pressing plates. Furthermore, through the attractive force F between the permanent magnets measured by the tension sensor 13 and the area A of the pressing plates identified by the RFID reader 24, through the formula the magnitude of the pressure can be calculated, and the real-time pressure can be displayed through the display 23 provided on the first housing 1.

[0053] In one embodiment, as shown in the attached Figure 4 - attached Figure 6 figure, both the first pressurizing module and the second pressurizing module include positioning mechanisms, which are respectively used for positioning the connection between the first pressing plate 2 and the first housing 1, and positioning the connection between the second pressing plate 4 and the second housing 3; specifically, the first pressurizing module connects the first housing 1 and the first pressing plate 2 through the first positioning ball 29 and the first positioning hole 28, and the second pressurizing module connects the second housing 3 and the second pressing plate 4 through the second positioning ball 30 and the second positioning hole 32, realizing the rapid and accurate assembly of the pressurizing device.

[0054] In one embodiment, the pressurizing device further includes a battery slot 21 and a control circuit slot 22. The battery slot 21 is used for supplying power to the electronic device and is connected to the first housing 1 by a second screw 8. The control circuit slot 22 is connected to a control button module 25 and a platen status indicator module 26 and is connected to the first housing 1 by a third screw 12.

[0055] Based on the same inventive concept as in the foregoing embodiments, an embodiment of the present application further provides a pressurizing method for a composite material bonding process. Using the pressurizing device for a composite material bonding process provided in the embodiment of the present application, the method includes the following steps:

[0056] S10: Adjust the first permanent magnet of the first pressurizing module to the position farthest from the first platen through the adjusting mechanism.

[0057] S20: Attach the second pressurizing module to one surface of the part to be pressurized, and attach the first pressurizing module to the other surface of the part to be pressurized.

[0058] S30: Obtain the attractive force between the first permanent magnet and the second permanent magnet through the tensile sensor, and read the RFID tag through the RFID reader to identify the platen area.

[0059] S40: Obtain the pressure exerted on the surface of the part to be pressurized by the first platen and the second platen according to the ratio of the attractive force and the platen area.

[0060] S50: Adjust the position of the first permanent magnet through the adjusting mechanism to change the pressure exerted on the surface of the part to be pressurized by the first platen and the second platen until the pressure meets the pressurizing conditions.

[0061] The beneficial effects of this embodiment can be referred to the description of the foregoing pressurizing device for a composite material bonding process, and will not be elaborated here. The first platen and the second platen are designed as array-type module units. According to the actual bonding area, different module units are arranged in an array, and platens of different sizes are designed. RFID industrial carrier code body tags with the size information are installed on the platens. As shown in the appendix Figure 7 There are two sizes of the composite material ribs to be bonded, one with a width of a and a length of b 1 and the other with a length of b2. After the part is coated with glue, a pressure of 0.1 - 0.2 MPa is required. Select a platen with the same width according to the rib width a: Suppose the lengths of the pressing bottom plates are c 1 、c 2 、c 3 There are three models. According to the formula n 1 ·c 1 +n 2 ·c 2 +n 3 ·c 3 =b1 Determine the number n of pressure plates for ribs of the first size 1 、n 2 、n 3 , according to the formula m 1 ·c 1 +m 2 ·c 2 +m 3 ·c 3 =b 2 Determine the number m of pressure plates for ribs of the second size 1 、m 2 、m 3 , and install the paired pressure plates of n 1 、n 2 、n 3 、m 1 、m 2 、m 3 into the first housing 1 and the second housing 3 of the first pressure module and the second pressure module respectively.

[0062] After assembling the first pressure module and the second pressure module, taking the adjustment mechanism provided in the embodiment of the present application as an example, first rotate the adjustment screw 5 to the top to avoid excessive initial attraction between the two permanent magnets and damage the surface of the parts. In an environment away from other easily adsorbed objects, by controlling the switch of the button module 25, when the first pressure module and the second pressure module are in a static state, the MCU chip in the control circuit slot 22 determines whether the RFID reader 24 reads the RFID tag. If the reading sensor only detects the RFID industrial carrier code body tag of the first pressure plate 2, it enters the calibration state. The "upper plate state" is green and the "lower plate state" is red. At this time, the pulling force of the pulling force sensor is equal to the gravity of the permanent magnet: F 0 =mg, and the device can be used normally. Otherwise, press the "calibration" button to make F=F 0 .

[0063] After adjustment, attach the first pressure module and the second pressure module to the two side surfaces of the part to be pressed respectively. The RFID reader 24 detects the two pressure plates. At this time, both the "upper plate state" and the "lower plate state" are green, and it enters the working state. Otherwise, check whether the two pressure plates are correctly paired. The MCU chip in the control circuit slot 22 obtains the permanent magnet attraction F of the pulling force sensor 13 and the pressure bottom plate area A read by the RFID reader 24, and obtains the current pressure value through . By rotating the adjustment screw 5, change the position of the first permanent magnet 17, so as to change the pressure applied by the first and second pressure plates on the bearing surface of the part to be glued until the stress value meets the pressing condition.

[0064] It should be noted that in this text, the terms "including", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, such that a process, method, article or system comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or system. Without further limitation, an element defined by the statement "comprising one..." does not exclude the presence of additional identical elements in the process, method, article or system comprising such element.

[0065] The serial numbers of the embodiments of the present application described above are only for description and do not represent the superiority or inferiority of the embodiments.

[0066] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included within the protection scope of the present application.

Claims

1. A pressurizing device for composite material bonding process, characterized in that: include: A first pressurizing module and a second pressurizing module, wherein the first pressurizing module comprises a first shell, a first permanent magnet, a first pressurizing plate and an adjusting mechanism, and the second pressurizing module comprises a second shell, a second permanent magnet and a second pressurizing plate, wherein: The first permanent magnet is disposed in the first shell, the first pressure plate is disposed at the second end of the first shell, and the axis of the first pressure plate coincides with the axis of the first shell, and the adjustment mechanism is used to adjust the distance between the first permanent magnet and the first pressure plate; The second permanent magnet is disposed in the second shell, the second pressure plate is disposed at the first end of the second shell, and the axis of the second pressure plate coincides with the axis of the second shell; The gap between the first pressurizing plate and the second pressurizing plate is used to place the parts to be pressurized.

2. The pressurizing device for composite material bonding process according to claim 1 is characterized in that: The adjustment mechanism includes a coaxially arranged adjustment screw and a connecting mechanism. The adjustment screw is threadedly connected to the first shell. The second end of the adjustment screw passes through the top of the first shell from the outside to the inside and is connected to the first end of the connecting structure. The second end of the connecting mechanism is connected to the first permanent magnet.

3. The pressurizing device for composite material bonding process according to claim 2 is characterized in that: The connecting mechanism includes a connecting block and a connecting rod, a ball head is provided at the second end of the adjusting screw, the second end of the adjusting screw is connected to the ball head at the first end of the connecting block, a slide groove whose shape matches the connecting block is provided on the top of the first shell, the second end of the connecting block is connected to the first end of the connecting rod, and the second end of the connecting rod is connected to the first permanent magnet.

4. The pressurizing device for composite material bonding process according to claim 3 is characterized in that: The connecting mechanism further comprises a tension sensor, and the second end of the connecting block is connected to the first end of the connecting rod via the tension sensor.

5. The pressurizing device for composite material bonding process according to claim 3, characterized in that: The connecting block comprises a fixed block and a limiting block, the cross section of the fixed block is L-shaped, and concave arc grooves are arranged on the opposite surfaces of the fixed block and the limiting block, so that when the fixed block and the limiting block form the connecting block, the arc grooves form a ball head groove.

6. The pressurizing device for composite material bonding process according to claim 1, characterized in that: The pressurizing device further includes an RFID reader / writer. RFID tags are disposed on both the first pressurizing plate and the second pressurizing plate. The RFID reader / writer is used to read the RFID tags to identify the area of ​​the pressurizing plate.

7. The pressurizing device for composite material bonding process according to claim 1, characterized in that: The first pressurizing module and the second pressurizing module both include positioning mechanisms, and the positioning mechanisms are used for positioning the first pressurizing plate in connection with the first shell, and for positioning the second pressurizing plate in connection with the second shell, respectively.

8. The pressurizing device for composite material bonding process according to claim 2, characterized in that: A rotating handle is arranged at the first end of the adjusting screw.

9. A pressurization method, characterized in that: The pressurizing device for composite material bonding process according to any one of claims 1 to 8 comprises the following steps: The first permanent magnet of the first pressurizing module is adjusted to a position farthest from the first pressurizing plate by means of an adjusting mechanism; Attach the second pressurizing module to one side of the part to be pressurized, and attach the first pressurizing module to the other side of the part to be pressurized; The position of the first permanent magnet is adjusted by the adjusting mechanism to change the pressure applied by the first pressurizing plate and the second pressurizing plate on the surface of the part to be pressurized until the pressure meets the pressurization condition.

10. The pressurizing method for composite material bonding process according to claim 9, characterized in that: The adjusting mechanism is used to adjust the position of the first permanent magnet to change the pressure applied by the first pressurizing plate and the second pressurizing plate on the surface of the part to be pressurized until the pressure meets the pressurization condition, and the pressurization method further includes: The attraction between the first permanent magnet and the second permanent magnet is obtained by a tension sensor, and the RFID tag is read by an RFID reader to identify the area of ​​the pressure plate; The pressure applied by the first pressurizing plate and the second pressurizing plate on the surface of the part to be pressurized is obtained according to the ratio of the attraction force to the area of ​​the pressurizing plate.

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