Stringer bonding apparatus and stringer bonding method

Abstract

The application discloses a long string bonding device and a long string bonding method, and relates to the technical field of aviation manufacturing. The long string bonding device is used for bonding a cap-shaped long string and a skin on a skin mold, and comprises a transfer tool, a cover plate and an assembly module. The assembly module is connected with the transfer tool, and the cover plate is provided with a cap-shaped matching part used for embedding the cap-shaped long string. The cap-shaped matching part is connected with the assembly module. The assembly module is used for fixing the cap-shaped long string on the cap-shaped matching part. The transfer tool is used for driving the assembly module to move, so that the two side caps of the cap-shaped long string are attached to the skin. The assembly module is also used for applying pressure to the cap-shaped matching part in the state that the two side caps of the cap-shaped long string are attached to the skin, so as to press the two side caps of the cap-shaped long string and the skin. The long string bonding device provided by the application can realize automatic transfer and bonding of the cap-shaped long string, saves time and effort, and can obtain better bonding effect.

Description

Technical Field

[0001] This invention relates to the field of aerospace manufacturing technology, and more specifically, to a stringer bonding device and a stringer bonding method. Background Technology

[0002] Many aircraft components utilize composite material panels. Some composite material panels are formed by bonding skin to cap-shaped stringers and then using co-bonding, co-curing, or secondary bonding methods.

[0003] The process of bonding the cap-shaped stringer to the skin requires operators to manually move the stringer, which is time-consuming and labor-intensive. Furthermore, applying pressure to the stringer during bonding is difficult for operators to ensure even pressure distribution, resulting in poor bonding performance. Summary of the Invention

[0004] The purpose of this invention is to provide a stringer bonding device that can realize the automated transfer and bonding of cap-shaped stringers, saving time and effort, and achieving better bonding results.

[0005] Another objective of this invention is to provide a stringer bonding method that enables automated transfer and bonding of cap-shaped stringers, saving time and effort, and achieving better bonding results.

[0006] An embodiment of the present invention provides a technical solution:

[0007] A stringer bonding device is used to drive a hat-shaped stringer to bond to the skin on a skin mold. The stringer bonding device includes a transfer fixture, a cover plate and an assembly module. The assembly module is connected to the transfer fixture. The cover plate is provided with a hat-shaped mating part for fitting the hat-shaped stringer. The hat-shaped mating part is connected to the assembly module.

[0008] The assembly module is used to fix the hat-shaped stringer to the hat-shaped mating part. The transfer tool is used to drive the assembly module to move so that the two sides of the hat bottom of the hat-shaped stringer fit with the skin. The assembly module is also used to apply pressure to the hat-shaped mating part when the two sides of the hat bottom of the hat-shaped stringer fit with the skin to press the two sides of the hat bottom of the hat-shaped stringer tightly with the skin.

[0009] Furthermore, the assembly module includes an electromagnetic suction fixture and a magnetic suction component. The electromagnetic suction fixture is located on the side of the hat-shaped mating part away from the hat-shaped stringer. The magnetic suction component is used to be inserted into the hat body of the hat-shaped stringer. The electromagnetic suction fixture is used to magnetically attract the magnetic suction component to clamp and fix the hat-shaped stringer and the hat-shaped mating part together with the magnetic suction component.

[0010] Furthermore, the stringer bonding device also includes a tubular vacuum bag for filling the cap body of the cap-shaped stringer, and the magnetic attractant is disposed on the tubular vacuum bag.

[0011] Furthermore, the assembly module also includes two pressure-applying fixtures, both of which are located on the side of the cap-shaped mating part away from the cap-shaped stringer, and the two pressure-applying fixtures correspond to the cap bottoms on both sides of the cap-shaped stringer, respectively.

[0012] Furthermore, the hat-shaped fitting part includes a fitting groove and fitting walls. The fitting groove is for the hat body of the hat-shaped stringer to be inserted. The two fitting walls are respectively connected to the two side groove walls of the fitting groove, and are used to respectively fit the two sides of the hat bottom of the hat-shaped stringer near the side of the hat body.

[0013] The bottom wall of the groove is provided with a mating hole, and the electromagnetic suction fixture is provided with a mating post. The mating post is inserted into the mating hole. The two pressure fixtures are located on opposite sides of the electromagnetic suction fixture and correspond to the two mating walls respectively.

[0014] Furthermore, a positioning hole is also provided through the cover plate, and the stringer bonding device also includes a positioning pin. The positioning pin is used to insert one end into the mounting hole on the skin mold, and the transfer tooling is used to drive the assembly module to move to the positioning hole and insert the end of the positioning pin away from the mounting hole.

[0015] Furthermore, the stringer bonding device also includes a fixing pin, which is used to replace the positioning pin and insert into the positioning hole and the mounting hole after the assembly module presses the two sides of the cap bottom of the cap-shaped stringer with the skin, so as to fix the cover plate to the skin mold.

[0016] Embodiments of the present invention also provide a stringer bonding method applied to a stringer bonding device. The stringer bonding device includes a transfer fixture, an assembly module, a cover plate, and a tubular vacuum bag. The assembly module is connected to the transfer fixture, and the cover plate is connected to the assembly module. The cover plate is provided with a hat-shaped mating part for fitting the hat-shaped stringer. The assembly module includes an electromagnetic suction fixture, a magnetic suction component, and two pressure fixtures. The electromagnetic suction fixture and the two pressure fixtures are all located on the side of the hat-shaped mating part away from the hat-shaped stringer, and the two pressure fixtures are respectively located on opposite sides of the electromagnetic suction fixture. A magnetic suction component is provided on the tubular vacuum bag. The stringer bonding method includes:

[0017] The transfer fixture is controlled to move the cover plate until the cap-shaped mating part is vertically upward;

[0018] The hat-shaped stringer is embedded into the hat-shaped fitting part;

[0019] The tubular vacuum bag is filled into the cap body of the cap-shaped stringer;

[0020] The electromagnetic suction fixture is controlled to magnetically attract the magnetic component, thereby clamping and fixing the hat-shaped stringer and the hat-shaped mating part;

[0021] The transfer fixture is controlled to rotate the hat-shaped stringer in the vertical plane until the opening of the hat body faces vertically downwards.

[0022] The transfer fixture is controlled to move the hat-shaped stringer until the bottoms of the hats on both sides fit against the skin on the skin mold.

[0023] The electromagnetic suction fixture is stopped, and the two pressure fixtures are operated to continuously press the two sides of the cap bottom of the cap-shaped stringer onto the skin.

[0024] Furthermore, the cover plate is also provided with a positioning hole, the skin mold is provided with an installation hole, and the stringer bonding device also includes a positioning pin; the step of controlling the transfer fixture to move the hat-shaped stringer until the two sides of the hat bottom are attached to the skin on the skin mold includes:

[0025] Insert one end of the positioning pin into the mounting hole;

[0026] The control tooling drives the cover plate to move until the positioning hole and the end of the positioning pin away from the mounting hole are inserted, and slides along the positioning pin close to the skin mold;

[0027] When the hat-shaped stringer moves to the point where the bottom of the hat on both sides fits into the skin, the transfer tool is stopped.

[0028] Furthermore, the stringer bonding device also includes fixing pins; after the step of controlling the electromagnetic suction fixture to stop and controlling the two pressure fixtures to operate so as to continuously press the two cap bottoms of the cap-shaped stringer onto the skin, the stringer bonding method further includes:

[0029] After the two pressurizing fixtures have been running for a first preset time, the positioning pin is removed;

[0030] The fixing pin is interference-fitted into the positioning hole and the mounting hole to fix the cover plate onto the skin mold;

[0031] After the two pressurizing fixtures have been running for a second preset period of time, the two pressurizing fixtures are controlled to stop.

[0032] The integral structure consisting of the cover plate, the hat-shaped stringer, the skin and the skin mold is vacuum-sealed and then sent into an autoclave to cure the hat-shaped stringer and the skin.

[0033] Compared to existing technologies, the stringer bonding device provided by this invention achieves the positioning and installation of the cap-shaped stringer through a cap-shaped mating part on the cover plate, and the assembly module then fixes the cap-shaped stringer to the cap-shaped mating part. The transfer fixture drives the cap-shaped stringer to move through the transfer module and the cover plate, realizing the transfer of the cap-shaped stringer and thus bringing the cap bottoms on both sides of the cap-shaped stringer into contact with the skin. In the mated state, the assembly module applies pressure to the cover plate, thereby pressing the cap bottoms on both sides of the cap-shaped stringer into the skin, ensuring a secure bond. Therefore, the stringer bonding device provided by this invention has the following advantages: it enables automated transfer and bonding of the cap-shaped stringer, saving time and labor, and achieving better bonding results. Attached Figure Description

[0034] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of the present invention and should not be considered as limiting the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 A schematic diagram of the structure of the stringer bonding device provided in an embodiment of the present invention;

[0036] Figure 2 A schematic diagram showing the connection structure between the cover plate, the electromagnetic suction fixture, and the cap-shaped stringer;

[0037] Figure 3 A schematic diagram showing the fit between the locating pin, the skin mold, and the cover plate;

[0038] Figure 4 A schematic diagram showing the structure in which the fixing pin mates with the skin mold and cover plate;

[0039] Figure 5 A flowchart illustrating a stringer bonding method provided in an embodiment of the present invention.

[0040] Icons: 100-Stringer bonding device; 110-Transfer tooling; 120-Cover plate; 121-Help type mating part; 1211-Matching groove; 1212-Matching wall; 1213-Matching hole; 122-Positioning hole; 130-Assembly module; 131-Electromagnetic suction tooling; 1311-Matching column; 132-Magnetic suction part; 133-Pressure tooling; 140-Tubular vacuum bag; 150-Positioning pin; 160-Fixing pin; 200-Help type stringer; 210-Help body; 220-Help bottom; 300-Skin mold; 310-Skin; 320-Mounting hole. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0042] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0043] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0044] In the description of this invention, it should be understood that the terms "upper," "lower," "inner," "outer," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this invention and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0045] Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0046] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, terms such as "set" and "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0047] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0048] Example

[0049] Please see Figure 1 , Figure 1The diagram shown is a structural schematic of the stringer bonding device 100 provided in this embodiment.

[0050] The stringer bonding device 100 provided in this embodiment is used to transfer the hat-shaped stringer 200 and to attach and bond the hat-shaped stringer 200 to the skin 310 on the skin mold 300. Compared with the existing technology of manually transferring and bonding the hat-shaped stringer 200, it is more time-saving and labor-saving, and can achieve better bonding effect.

[0051] The stringer bonding device 100 provided in this embodiment includes a transfer fixture 110, a cover plate 120, and an assembly module 130. The assembly module 130 is connected to the transfer fixture 110. The cover plate 120 is provided with a hat-shaped mating part 121 for fitting the hat-shaped stringer 200. The hat-shaped mating part 121 is connected to the assembly module 130. The assembly module 130 is used to fix the hat-shaped stringer 200 to the hat-shaped mating part 121. The transfer fixture 110 is used to drive the assembly module 130 to move so that the two sides of the hat bottom 220 of the hat-shaped stringer 200 fit against the skin 310. The assembly module 130 is also used to apply pressure to the hat-shaped mating part 121 when the two sides of the hat bottom 220 of the hat-shaped stringer 200 are fitted against the skin 310, so as to press the two sides of the hat bottom 220 of the hat-shaped stringer 200 against the skin 310 tightly.

[0052] In practice, there are multiple assembly modules 130 and multiple cap-shaped mating parts 121. All assembly modules 130 are connected to the transfer fixture 110, and the multiple cap-shaped mating parts 121 on the cover plate 120 are respectively connected to the multiple assembly modules 130. In practical applications, the multiple cap-shaped mating parts 121 on the cover plate 120 can correspondingly assemble multiple cap-shaped stringers 200. Each assembly module 130 can fix the corresponding cap-shaped stringer 200 to the cap-shaped mating part 121 and can also apply pressure to the cap-shaped mating part 121, thereby pressing the two sides of the cap bottom 220 of the cap-shaped stringer 200 onto the skin 310 to achieve bonding between the cap-shaped stringer 200 and the skin 310. Therefore, the stringer bonding device 100 provided in this embodiment can achieve one-time transfer and bonding of multiple cap-shaped stringers 200, significantly improving bonding efficiency.

[0053] In this embodiment, the assembly module 130 includes an electromagnetic suction fixture 131, a magnetic suction component 132, and two pressure-applying fixtures 133. The electromagnetic suction fixture 131 and the two pressure-applying fixtures 133 are all located on the side of the cap-shaped mating portion 121 away from the cap-shaped stringer 200. The magnetic suction component 132 is used to insert into the cap body 210 of the cap-shaped stringer 200, and the electromagnetic suction fixture 131 is used to magnetically attract the magnetic suction component 132, thereby clamping and fixing the cap-shaped stringer 200 and the cap-shaped mating portion 121 together. The two pressure-applying fixtures 133 correspond to the two cap bottoms 220 on both sides of the cap-shaped stringer 200, respectively, and are used to apply pressure to the cap-shaped mating portion 121 to press the two cap bottoms 220 of the cap-shaped stringer 200 tightly against the skin 310.

[0054] In this embodiment, the pressurizing fixture 133 is equipped with a pressure sensor to monitor the pressure applied by the pressurizing fixture 133 in order to accurately meet the process requirements.

[0055] Please refer to the following: Figure 2 , Figure 2 The diagram shows the connection structure between the cover plate 120, the electromagnetic suction fixture 131, and the hat-shaped stringer 200.

[0056] In this embodiment, the hat-shaped mating part 121 is connected to the electromagnetic suction fixture 131. Specifically, the hat-shaped mating part 121 includes a mating groove 1211 and mating walls 1212. The mating groove 1211 is for the hat body 210 of the hat-shaped stringer 200 to be inserted into. The two mating walls 1212 are respectively connected to the two side walls of the mating groove 1211, and are used to respectively fit the two sides of the hat bottom 220 of the hat-shaped stringer 200 near the hat body 210. When the hat-shaped stringer 200 is fitted with the hat-shaped mating part 121, the hat body 210 of the hat-shaped stringer 200 is inserted into the mating groove 1211, and the two sides of the hat bottom 220 of the hat-shaped stringer 200 are respectively fitted to the two mating walls 1212.

[0057] The cover plate 120 is made of a lightweight material, such as carbon fiber composite material, glass fiber composite material, aluminum alloy material, or other lightweight materials with a thermal expansion coefficient similar to that of the cap-shaped stringer 200. Preferably, it is made of the same material as the cap-shaped stringer 200.

[0058] A mating hole 1213 is provided through the bottom wall of the mating groove 1211. A mating post 1311 is provided on the electromagnetic suction fixture 131. The mating post 1311 is inserted into the mating hole 1213 to realize the connection between the cap-shaped mating part 121 and the assembly module 130. Two pressure fixtures 133 are located on opposite sides of the electromagnetic suction fixture 131 and correspond to the two mating walls 1212 respectively.

[0059] Understandably, the length of the mating post 1311 is less than the depth of the mating hole 1213, meaning the mating post 1311 cannot extend into the mating groove 1211. Furthermore, the insertion of the mating post 1311 into the mating hole 1213 does not achieve complete fixation of the cover plate 120 on the electromagnetic suction fixture 131; the mating post 1311 can still slide along the mating hole 1213. This ensures that when the two subsequent pressure fixtures 133 apply pressure to the two mating walls 1212, the cover plate 120 can move a certain distance away from the electromagnetic suction fixture 131, thus ensuring that the two cap bottoms 220 of the cap-shaped stringer 200 are pressed tightly onto the skin 310.

[0060] In practice, before assembling the hat-shaped stringer 200 into the hat-shaped mating part 121, it is necessary to ensure that the hat-shaped mating part 121 is vertically upward, that is, to ensure that the opening of the mating groove 1211 is vertically upward. If the hat-shaped mating part 121 is not in this state, the transfer fixture 110 will operate, driving the cover plate 120 to move until the hat-shaped mating part 121 is vertically upward. In this state, the hat-shaped stringer 200 is assembled into the hat-shaped mating part 121, so that the two fit together, that is, the hat body 210 of the hat-shaped stringer 200 is embedded in the mating groove 1211, and the two sides of the hat bottom 220 of the hat-shaped stringer 200 are respectively attached to the two mating walls 1212.

[0061] Understandably, in order to ensure the effective function of the assembly module 130 on the hat-shaped stringer 200, when assembling the hat-shaped stringer 200 to the hat-shaped mating part 121, it is necessary to ensure that one end of the hat-shaped stringer 200 is flush with one end of the hat-shaped mating part 121, that is, one end of the hat body 210 is flush with one end of the mating groove 1211, and one end of the hat bottom 220 is flush with one end of the mating wall 1212.

[0062] After the cap-shaped stringer 200 and the cap-shaped mating part 121 are fitted together, the opening of the cap body 210 of the cap-shaped stringer 200 is also vertically upward. In this state, the magnetic suction component 132 is inserted into the cap body 210 through the opening. It can be understood that the magnetic suction component 132 is a material that can be magnetically attracted, such as metal iron. After the magnetic suction component 132 is inserted into the cap body 210, the electromagnetic suction fixture 131 is energized, thereby applying a magnetic attraction to the magnetic suction component 132, so that the magnetic suction component 132 and the electromagnetic suction fixture 131 clamp and fix the cap-shaped stringer 200 and the cap-shaped mating part 121.

[0063] The magnetic suction component 132 can be an integral structure with a length similar to that of the hat-shaped stringer 200. Preferably, the length of the magnetic suction component 132 differs from the length of the hat-shaped stringer 200 by no more than 100 mm. Multiple magnetic suction components 132 can also be arranged within the same hat body 210, spaced apart along the length of the hat-shaped stringer 200. Preferably, the length of a single magnetic suction component 132 is 20 mm. To ensure reliable clamping of the hat-shaped stringer 200 by the electromagnetic suction fixture 131 and the magnetic suction component 132, preferably, the width of the magnetic suction component 132 differs from the width of the bottom wall of the mating groove 1211 by no more than 10 mm.

[0064] In this embodiment, the stringer bonding device 100 further includes a tubular vacuum bag 140, which is used to fill the cap body 210 of the cap-shaped stringer 200. A magnetic suction element 132 is disposed on the tubular vacuum bag 140. It is understood that the magnetic suction element 132 can be disposed on either the outer surface or the surface of the tubular vacuum bag 140, with the specific placement chosen adaptably according to the actual application conditions. In practical applications, after the cap-shaped stringer 200 and the cap-shaped mating part 121 are fitted together, the tubular vacuum bag 140 is filled into the cap body 210 of the cap-shaped stringer 200, and the electromagnetic suction fixture 131 is activated.

[0065] After the electromagnetic suction fixture 131 and the magnetic suction component 132 clamp and fix the hat-shaped stringer 200 and the hat-shaped mating part 121, the transfer fixture 110 operates, causing the cover plate 120 to flip so that the hat-shaped mating part 121 faces downwards, that is, flipped 180° so that the opening of the mating groove 1211 faces vertically downwards, so that the two sides of the hat bottom 220 of the hat-shaped stringer 200 correspond to the skin mold 300 below. Then, the transfer fixture 110 moves the hat-shaped stringer 200 until its two sides of the hat bottom 220 fit against the skin 310 on the skin mold 300. After fitting, the two pressure fixtures 133 operate, applying pressure to the side of the two mating walls 1212 of the hat-shaped mating part 121 away from the hat bottom 220, thereby transmitting pressure to the hat bottom 220 through the mating walls 1212, pressing the two sides of the hat bottom 220 tightly onto the skin 310.

[0066] To ensure the precise fit between the cap bottoms 220 and the skin 310 on both sides of the cap-shaped stringer 200, thereby ensuring the precise bonding of multiple cap-shaped stringers 200 and skin 310, in this embodiment, a positioning hole 122 is also provided through the cover plate 120, and an installation hole 320 is provided on the skin mold 300. The stringer bonding device 100 also includes a positioning pin 150, which is used to insert one end of the positioning pin 150 into the installation hole 320. The transfer tooling 110 is used to drive the assembly module 130 to move to the positioning hole 122 and insert the positioning pin 150 at the end away from the installation hole 320.

[0067] Please refer to the following: Figure 3 , Figure 3The diagram shows the structure of the locating pin 150 in conjunction with the skin mold 300 and the cover plate 120.

[0068] In practical applications, before the transfer fixture 110 moves the cap-shaped stringer 200 closer to the skin 310, one end of the positioning pin 150 is first inserted into the mounting hole 320. In this state, the end of the positioning pin 150 away from the mounting hole 320 is vertically upward. Then, the transfer fixture 110 moves the cover plate 120 until its positioning hole 122 is aligned and the positioning pin 150 is inserted. After that, the cover plate 120 is moved closer to the skin 310 along the positioning pin 150 until the cap bottoms 220 on both sides of the cap-shaped stringer 200 are in contact with the skin 310.

[0069] Understandably, the number of positioning holes 122 on the cover plate 120, mounting holes 320 on the skin mold 300, and positioning pins 150 can be adjusted according to actual application conditions. Through the guiding action of the positioning pins 150, it can be ensured that the two sides of the cap bottom 220 of each cap-shaped stringer 200 precisely fit with the target position on the skin 310, thereby ensuring precise bonding between multiple cap-shaped stringers 200 and the skin 310.

[0070] After the cap bottoms 220 on both sides of the cap-shaped stringer 200 are attached to the skin 310, the pressure fixture 133 applies force to the mating wall 1212, thereby pressing the cap bottoms 220 on both sides of each cap-shaped stringer 200 onto the skin 310, thus bonding the cap bottoms 220 to the skin 310. In this state, the cover plate 120 and the skin mold 300 need to be locked and fixed. Since the positioning pin 150 plays a guiding role, to ensure that the cover plate 120 slides smoothly along the positioning pin 150, the positioning pin 150 and the positioning hole 122 on the cover plate 120 are in clearance fit. Therefore, the positioning pin 150 cannot actually play a role in locking and fixing the cover plate 120 and the skin mold 300.

[0071] In this embodiment, the stringer bonding device 100 also includes a fixing pin 160, please refer to the following: Figure 4 , Figure 4 The diagram shows the structure of the fixed pin 160 cooperating with the skin mold 300 and the cover plate 120.

[0072] The fixing pin 160 is used to replace the positioning pin 150 and insert it into the positioning hole 122 and mounting hole 320 after the assembly module 130 presses the cap bottom 220 on both sides of the cap-shaped stringer 200 onto the skin 310, so as to fix the cover plate 120 onto the skin mold 300. That is, after the pressure fixture 133 presses the cap bottom 220 onto the skin 310, the positioning pin 150 is removed, and the fixing pin 160 is inserted into the positioning hole 122 and mounting hole 320 with an interference fit to lock and fix the cover plate 120 onto the skin mold 300, so as to avoid the cap-shaped stringer 200 relative to the skin 310 displacement during subsequent bonding and curing processes, which would affect the bonding accuracy and bonding effect.

[0073] Understandably, to facilitate subsequent bagging and canning, the length of the fixing pin 160 is shorter than the length of the positioning pin 150. To ensure the locking and fixing of the cover plate 120 and the skin mold 300, the diameter of the fixing pin 160 is larger than the diameter of the positioning pin 150. The pressurizing fixture 133 continuously applies pressure for the required duration and then stops, achieving the bonding of the cap-shaped stringer 200 and the skin 310. Since the fixing pin 160 is assembled, the cover plate 120 and the skin mold 300 are fixed as an integral structure, facilitating subsequent canning and co-bonding curing operations.

[0074] In addition, this embodiment also provides a stringer bonding method, applied to the aforementioned stringer bonding device 100. Please refer to the following references. Figure 5 , Figure 5 The diagram shown is a flowchart of the stringer bonding method, which may include:

[0075] Step S101: Control the transfer fixture 110 to drive the cover plate 120 to move until the cap-shaped mating part 121 is vertically upward.

[0076] Step S102: Insert the hat-shaped stringer 200 into the hat-shaped fitting part 121.

[0077] Step S103: Fill the tubular vacuum bag 140 into the cap body 210 of the cap-shaped stringer 200.

[0078] In step S104, the electromagnetic suction fixture 131 is controlled to magnetically attract the magnetic component 132 to clamp and fix the hat-shaped stringer 200 and the hat-shaped mating part 121.

[0079] Step S105: Control the transfer fixture 110 to drive the hat-shaped stringer 200 to flip in the vertical plane until the opening of the hat body 210 is vertically downward.

[0080] In step S106, the control transfer fixture 110 drives the hat-shaped stringer 200 to move until the hat bottoms 220 on both sides fit against the skin 310 on the skin mold 300.

[0081] In practical applications, before the transfer fixture 110 moves the cap-shaped stringer 200 closer to the skin 310, one end of the positioning pin 150 is first inserted into the mounting hole 320. In this state, the end of the positioning pin 150 away from the mounting hole 320 is vertically upward. Then, the transfer fixture 110 moves the cover plate 120 until its positioning hole 122 is aligned and the positioning pin 150 is inserted. After that, the cover plate 120 is moved closer to the skin 310 along the positioning pin 150 until the cap bottoms 220 on both sides of the cap-shaped stringer 200 are in contact with the skin 310.

[0082] In step S107, the electromagnetic suction fixture 131 is stopped, and the two pressure fixtures 133 are operated to continuously press the two sides of the cap bottom 220 of the cap-shaped stringer 200 onto the skin 310.

[0083] Step S108: After the two pressurizing fixtures 133 have been running for a first preset time, the positioning pin 150 is removed.

[0084] In step S109, the fixing pin 160 is interference-fitted with the positioning hole 122 and the mounting hole 320 to fix the cover plate 120 on the skin mold 300.

[0085] Step S110: After the two pressurizing fixtures 133 have been running for a second preset time, control the two pressurizing fixtures 133 to stop.

[0086] Step S111: The integral structure consisting of cover plate 120, cap-shaped stringer 200, skin 310 and skin mold 300 is packaged in a vacuum bag and then sent into an autoclave to cure the cap-shaped stringer 200 and skin 310.

[0087] The first and second preset durations are preset according to actual application conditions to meet the bonding effect under different working conditions. During the curing process of the cap-shaped stringer 200 and the skin 310, the cover plate 120 and the skin mold 300 are locked by the fixing pin 160, thereby fixing the relative position of the cap-shaped stringer 200 and the skin 310 and ensuring that the cap-shaped stringer 200 and the skin 310 do not undergo relative displacement during the curing process.

[0088] In summary, the stringer bonding device 100 and stringer bonding method provided in this embodiment are more time-saving and labor-saving than the existing technology of manually transporting and bonding the cap-shaped stringer 200, and can achieve better bonding results. Furthermore, the bonding precision is higher, and it can ensure that the cap-shaped stringer 200 and the skin 310 remain fixed without relative displacement during subsequent bonding and curing processes, thereby improving the quality of the prepared composite material wall panel.

[0089] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A stringer bonding device (100) for bonding a hat-shaped stringer (200) to a skin (310) on a skin mold (300), characterized in that, The stringer bonding device (100) includes a transfer fixture (110), a cover plate (120), and an assembly module (130). The assembly module (130) is connected to the transfer fixture (110). The cover plate (120) is provided with a hat-shaped fitting part (121) for fitting the hat-shaped stringer (200). The hat-shaped fitting part (121) is connected to the assembly module (130). The assembly module (130) is used to fix the hat-shaped stringer (200) to the hat-shaped mating part (121). The transfer tool (110) is used to drive the assembly module (130) to move so that the two sides of the hat bottom (220) of the hat-shaped stringer (200) fit with the skin (310). The assembly module (130) is also used to apply pressure to the hat-shaped mating part (121) when the two sides of the hat bottom (220) of the hat-shaped stringer (200) fit with the skin (310) so as to press the two sides of the hat bottom (220) of the hat-shaped stringer (200) tightly with the skin (310). The assembly module (130) includes an electromagnetic suction fixture (131), a magnetic suction component (132), and two pressure fixtures (133). The electromagnetic suction fixture (131) is located on the side of the hat-shaped mating part (121) away from the hat-shaped stringer (200). The magnetic suction component (132) is used to insert into the hat body (210) of the hat-shaped stringer (200). The electromagnetic suction fixture (131) is used to magnetically attract the magnetic suction component (132) so as to clamp and fix the hat-shaped stringer (200) and the hat-shaped mating part (121) together with the magnetic suction component (132). Both pressure fixtures (133) are located on the side of the hat-shaped mating part (121) away from the hat-shaped stringer (200). The hat-shaped fitting part (121) includes a fitting groove (1211) and fitting walls (1212). The fitting groove (1211) is for the hat body (210) of the hat-shaped stringer (200) to be inserted. The two fitting walls (1212) are respectively connected to the two side groove walls of the fitting groove (1211) and are used to fit the two sides of the hat bottom (220) of the hat-shaped stringer (200) close to the side of the hat body (210). The bottom wall of the groove (1211) is provided with a mating hole (1213). The electromagnetic suction fixture (131) is provided with a mating post (1311). The mating post (1311) is inserted into the mating hole (1213). The length of the mating post (1311) is less than the depth of the mating hole (1213). The mating post (1311) can slide along the mating hole (1213). The two pressure fixtures (133) are located on opposite sides of the electromagnetic suction fixture (131) and correspond to the two mating walls (1212) respectively.

2. The stringer bonding device (100) according to claim 1, characterized in that, The stringer bonding device (100) further includes a tubular vacuum bag (140) for filling the cap body (210) of the cap-shaped stringer (200), and the magnetic attractant (132) is disposed on the tubular vacuum bag (140).

3. The stringer bonding device (100) according to claim 1, characterized in that, The cover plate (120) is also provided with a positioning hole (122). The stringer bonding device (100) also includes a positioning pin (150). The positioning pin (150) is used to insert one end into the mounting hole (320) on the skin mold (300). The transfer tool (110) is used to drive the assembly module (130) to move to the positioning hole (122) and insert the positioning pin (150) at the end away from the mounting hole (320).

4. The stringer bonding device (100) according to claim 3, characterized in that, The stringer bonding device (100) further includes a fixing pin (160), which is used to replace the positioning pin (150) and insert it into the positioning hole (122) and the mounting hole (320) after the assembly module (130) presses the two sides of the cap bottom (220) of the cap-shaped stringer (200) with the skin (310) to fix the cover plate (120) to the skin mold (300).

5. A stringer bonding method, applied to the stringer bonding device (100) as described in claim 1, characterized in that, The stringer bonding device (100) further includes a tubular vacuum bag (140), on which the magnetic attractant (132) is disposed; the stringer bonding method includes: Control the transfer fixture (110) to drive the cover plate (120) to move until the cap-shaped mating part (121) is vertically upward; The hat-shaped stringer (200) is embedded into the hat-shaped fitting part (121); The tubular vacuum bag (140) is filled into the cap body (210) of the cap-shaped stringer (200); Control the electromagnetic suction fixture (131) to magnetically attract the magnetic suction component (132) to clamp and fix the hat-shaped stringer (200) and the hat-shaped mating part (121). Control the transfer fixture (110) to drive the hat-shaped stringer (200) to flip in the vertical plane until the opening of the hat body (210) is vertically downward; Control the transfer tool (110) to drive the hat-shaped stringer (200) to move until the two sides of the hat bottom (220) fit against the skin (310) on the skin mold (300); The electromagnetic suction device (131) is stopped, and the two pressure devices (133) are operated to continuously press the two sides of the cap bottom (220) of the cap-shaped stringer (200) onto the skin (310).

6. The stringer bonding method according to claim 5, characterized in that, The cover plate (120) is also provided with a positioning hole (122), the skin mold (300) is provided with a mounting hole (320), and the stringer bonding device (100) also includes a positioning pin (150); the step of controlling the transfer fixture (110) to drive the hat-shaped stringer (200) to move until the two sides of the hat bottom (220) are attached to the skin (310) on the skin mold (300) includes: Insert one end of the positioning pin (150) into the mounting hole (320); The control of the transfer tool (110) drives the cover plate (120) to move to the positioning hole (122) and the end of the positioning pin (150) away from the mounting hole (320), and slides along the positioning pin (150) close to the skin mold (300); When the hat-shaped stringer (200) moves to the point where the two sides of the hat bottom (220) fit against the skin (310), the transfer tool (110) is stopped.

7. The stringer bonding method according to claim 6, characterized in that, The stringer bonding device (100) further includes a fixing pin (160); after the step of controlling the electromagnetic suction fixture (131) to stop and controlling the two pressure fixtures (133) to operate so as to continuously press the two cap bottoms (220) of the cap-shaped stringer (200) onto the skin (310), the stringer bonding method further includes: After the two pressurizing fixtures (133) have been running for a first preset time, the positioning pin (150) is removed. The fixing pin (160) is interference-fitted with the positioning hole (122) and the mounting hole (320) to fix the cover plate (120) on the skin mold (300); After the two pressurizing fixtures (133) have been running for a second preset time, the two pressurizing fixtures (133) are controlled to stop. The integral structure consisting of the cover plate (120), the hat-shaped stringer (200), the skin (310) and the skin mold (300) is sealed in a vacuum bag and then sent into a thermostatic precipitator to cure the hat-shaped stringer (200) and the skin (310).

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