Secondary glue joint forming die for aircraft composite wall plate

Abstract

The utility model provides a secondary glue joint forming die for an airplane composite material wallboard, and belongs to the technical field of composite material forming. Comprising a template assembly, a frame assembly, an in-bag clamping plate assembly, an out-bag clamping plate assembly, a T-shaped stringer forming die assembly and a trundle assembly. The frame assembly is used for supporting the whole mold. The formwork assembly is a wallboard skin forming assembly, and the in-bag clamping plate 3 and the out-bag clamping plate assembly 4 are positioned on the formwork assembly through positioning holes and used for positioning the position of the T-shaped stringer forming die assembly. According to the utility model, the accuracy of the appearance curvature of the skin and the accuracy of the position of the T-shaped stringer on the skin are ensured, the positioning method is simple and reliable, and when the autoclave is formed, the airflow flows uniformly, no local large temperature difference exists, and the wallboard forming quality is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of composite material molding, and relates to a secondary bonding molding die for aircraft composite material wall panels. Background Art

[0002] Composite panels have been widely used in the aerospace field due to their excellent properties, ultra-high specific strength and specific stiffness, and excellent fatigue resistance. Along with the large-scale application of composite panels, various composite panel manufacturing technologies have emerged. The most important part of the composite panel manufacturing process is the selection of the molding method. The molding method of the composite panel should ensure that the structural performance of the panel after molding meets the design indicators and the matching accuracy meets the assembly requirements; at the same time, it should take into account the existing equipment, especially the size of the autoclave; and give priority to the molding method with experience in use.

[0003] Generally, composite panels, as a typical structure of aircraft, are currently mainly formed by autoclaves, and resin liquid forming has not yet been widely used. Integrally formed structural parts are formed by co-curing, secondary curing or secondary bonding.

[0004] The above scheme is a common method used to manufacture composite material wall panels. The above method has the following problems:

[0005] (1) During autoclave molding, temperature is a key factor affecting the molding quality of composite sidings, mainly because temperature is closely related to the viscosity and fluidity of the matrix; and temperature affects the curing speed. Therefore, different local temperatures during autoclave molding may lead to reduced physical and mechanical properties of the final product, and may also cause defects and deformation of the product.

[0006] (2) During integral molding, it is difficult to accurately fix the long stringers or reinforcing ribs to the skin to form a wall panel structure. During autoclave molding, if the positioning of the long stringers or reinforcing ribs is unstable, large displacements are likely to occur on the bonding surface. Especially when the curvature of the wall panel skin is large and irregular, there is a lack of relevant manufacturing experience on how to position the long stringers. Utility Model Content

[0007] In order to solve the above technical problems, the utility model proposes a secondary bonding forming mold for aircraft composite wall panels. The key lies in the overall CNC processing of the frame component and the template component after welding, so as to obtain a higher skin forming mold accuracy, and determine the position of the long stringer on the skin by positioning the position of the long stringer forming mold. The positioned long stringer forming mold itself can ensure that the long stringer does not have a large displacement in the forming mold, thereby ensuring the forming quality.

[0008] The technical solution adopted by the utility model is:

[0009] A secondary bonding forming mold for aircraft composite wall panels, the forming mold comprising a template assembly 1, a frame assembly 2, an inner bag pallet assembly 3, an outer bag pallet assembly 4, a T-shaped long stringer forming mold assembly 5, and a caster assembly 6. The frame assembly 2 is used to support the entire mold; the template assembly 1 is a wall panel skin forming assembly, and provides support for the inner bag pallet assembly 3 and the outer bag pallet assembly 4; the inner bag pallet 3 and the outer bag pallet assembly 4 are positioned on the template assembly 1 through positioning holes, which are used to locate the position of the T-shaped long stringer forming mold assembly 5.

[0010] The template assembly 1 includes a skin forming template 1-1, a cardboard positioning block 1-2, an air guide groove cover plate 1-3, and a drilling jig 1-4. The middle part of the skin forming template 1-1 is provided with a forming area according to the wall panel skin profile, which is used for stacking and forming the wall panel skin. The air guide groove cover plate 1-3 is provided outside the forming area, which is used for air conduction during vacuum curing and forming. The edge of the skin forming template 1-1 is provided with a positioning connection hole, which is used for positioning and connecting the bag outer cardboard assembly 4. The drilling jig 1-4 is provided at the edge of the skin forming template 1-1, corresponding to the position of the wall panel mounting hole, and is used for drilling the mounting hole after the wall panel is formed; the bag inner cardboard positioning block 1-2 is provided with a plurality of different shapes, which are installed at the opening of the wall panel skin of the skin forming template 1-1. The bag inner cardboard positioning block 1-2 has a certain thickness, and its upper surface is flush with the upper surface of the skin forming template 1-1. Each bag inner cardboard positioning block 1-2 is provided with a positioning hole and a threaded hole, which are respectively used for positioning and installing the bag inner cardboard assembly 3.

[0011] The frame assembly 2 includes a partition 2-1, a rib 2-2, a bottom plate 2-3, a caster connecting plate 2-4 and a hanging device 2-5; the partition 2-1, the rib 2-2 and the bottom plate 2-3 are welded into an integral frame as a load-bearing structure, the upper end surfaces of the partition 2-1 and the rib 2-2 are arranged according to the lower surface of the skin forming template 1-1 and fixedly connected under the template assembly 1, and the overall frame is designed with vents to ensure airflow inside the frame when the mold enters the autoclave for forming, thereby preventing the generation of local temperature differences. Caster connecting plates 2-4 and hanging devices 2-5 are arranged on the outer surfaces of both sides of the overall frame, which are respectively used to connect the caster assembly 6 and hoisting and transportation.

[0012] The in-bag pallet assembly 3 includes a plurality of in-bag pallets of different shapes, which are installed one by one on the pallet positioning blocks 1-2 after the skin is stacked and solidified, and are used to position the T-shaped long stringer forming mold assembly 5, thereby realizing the positioning of the T-shaped long stringer. Each in-bag pallet includes an inner pallet 3-1 and a latch 3-2; the shape of the inner pallet 3-1 is set according to the T-shaped long stringer to be positioned, and each inner pallet 3-1 is provided with a positioning hole and a screw through hole, which are used to cooperate with the positioning holes and threaded holes on the pallet positioning blocks 1-2 at the corresponding positions to realize positioning and fixation. According to the position of the positioned T-shaped long stringer forming mold assembly 5, one or more positioning grooves are formed at one end or both ends of the inner pallet 3-1, and the groove width is set according to the width of the T-shaped long stringer forming mold assembly 5, which is used to position the width direction of the T-shaped long stringer forming mold assembly 5. The end is provided with a latch 3-2 as an auxiliary detection device for detecting the centerline position of the T-shaped long stringer.

[0013] The bag outer cardboard assembly 4 includes an outer cardboard 4-1, a crossbeam 4-2 and a positioning support 4-3. A plurality of crossbeams 4-2 are welded into a support structure that is staggered in a horizontal and vertical manner to provide support for the outer card plate 4-1. A positioning support 4-3 is installed at the end of the support structure for positioning and fixing the bag outer card plate assembly 4 at the positioning connection hole on the template assembly 1. Three laser measuring instrument target points are arranged on each crossbeam 4-2. During installation, the ball point value is adjusted to ensure that the crossbeam 4-2 is installed at the designed position; the outer card plate 4-1 is provided with a plurality of, which are positioned and fixed on the crossbeam 4-2. The outer card plate 4-1 corresponds to the position of the inner card plate 3-1, and a positioning groove is also set at its end, which corresponds to the positioning groove at the end of the inner card plate 3-1 to cooperate with the two ends of the positioning T-shaped long girder forming mold assembly 5; a positioning surface is also provided on the crossbeam 4-2, and a pin is arranged on the positioning surface for one-to-one cooperation with the pin 3-2 on the bag inner card plate assembly 3, and the centerline position of the T-shaped long girder is detected by connecting a pull line.

[0014] The T-shaped long stringer forming mold assembly 5 is used to clamp and assist in positioning the T-shaped long stringer. The number of the T-shaped long stringer is consistent with the T-shaped long stringer, and the length is set according to the clamped T-shaped long stringer. Each group includes a left core mold 5-1, a right core mold 5-2 and a cover plate 5-3. All three are strip-shaped parts. The left core mold 5-1 and the right core mold 5-2 are relatively clamped on both sides of the length direction of the T-shaped long stringer. The cover plate 5-3 is placed on the upper end surface of the T-shaped long stringer along the length direction and clamped between the left core mold 5-1 and the right core mold 5-2 to maintain the distance between the left core mold 5-1 and the right core mold 5-2. After the T-shaped long stringer forming mold assembly 5 is clamped and fixed by a C-shaped clamp.

[0015] The caster assembly 6 includes a caster socket 6-1, a support assembly 6-2, a caster 6-3 and a foot assembly 6-4, which are used for transporting the molding mold; the caster socket 6-1 is fixed with the caster connecting plate 2-4, and the caster socket 6-1 is connected to the caster 6-3 through the support assembly 6-2. After the molding mold is transported to the place, the foot assembly 6-4 is fixed on the ground, and it cooperates with the caster 6-3 to fix the molding mold.

[0016] Beneficial effects of the utility model: The utility model not only ensures the accuracy of the curvature of the skin shape but also ensures the accuracy of the position of the T-shaped long stringer on the skin, and the positioning method is simple and reliable. During the hot press molding, the airflow flows evenly, there is no local large temperature difference, and the wall panel molding quality is high. It has the following technical advantages:

[0017] (1) The overall mold material is made of Invar steel, and the frame is designed with vents to ensure that the entire mold is in the same temperature field, greatly reducing the impact of temperature on the quality of wall panel molding;

[0018] (2) The mold design is universal, and the skin molding mold or the co-curing molding mold can be designed with reference to this mold;

[0019] (3) A large number of CNC parts are used in the design, and the overall CNC processing method is adopted after the welding of the welding frame, which makes the mold have higher precision. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an isometric view of the forming die;

[0021] Figure 2 Isometric view of the template assembly;

[0022] Figure 3 Isometric view of the frame assembly;

[0023] Figure 4 It is an isometric view of the in-bag pallet assembly;

[0024] Figure 5 It is an isometric view of the bag outer pallet assembly;

[0025] Figure 6 It is an isometric view of the T-type long stringer forming die assembly;

[0026] Figure 7 Isometric view of caster assembly;

[0027] In the figure: 1 template assembly; 2 frame assembly; 3 bag inner pallet assembly; 4 bag outer pallet assembly; 5 T-type long stringer forming mold assembly; 6 caster assembly; 1-1 skin forming template; 1-2 pallet positioning block; 1-3 air guide groove cover; 1-4 drilling jig; 2-1 partition; 2-2 rib plate; 2-3 bottom plate; 2-4 caster connecting plate; 2-5 hanging device; 3-1 inner pallet; 3-2 pin; 4-1 outer pallet; 4-2 crossbeam; 4-3 positioning support; 5-1 left core mold; 5-2 right core mold; 5-3 cover plate; 6-1 caster socket; 6-2 support assembly; 6-3 caster; 6-4 foot assembly. DETAILED DESCRIPTION

[0028] The technical solution of the utility model is described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. All other embodiments improved or adjusted by ordinary technicians in this field based on the embodiments of the utility model belong to the protection scope of the utility model.

[0029] A secondary bonding forming mold for aircraft composite wall panels, the forming mold comprising a template component 1, a frame component 2, an inner bag pallet component 3, an outer bag pallet component 4, a T-shaped long stringer forming mold component 5, and a caster component 6. Figure 1 shown.

[0030] like Figure 2 As shown, the template assembly 1 is mainly composed of a skin forming template 1-1, a cardboard positioning block 1-2, an air guide groove cover plate 1-3, and a drilling jig 1-4. The skin forming template 1-1 is made of invar steel with a thickness of 12 mm. A forming area is set in the middle according to the wall panel skin profile for stacking and forming the wall panel skin. An air guide groove cover plate 1-3 is set outside the forming area for air conduction during vacuum curing. A positioning connection hole is set at the edge of the skin forming template 1-1 for positioning and fixing the cardboard assembly 4 outside the bag. The drilling jig 1-4 is arranged at the edge of the skin forming template 1-1, corresponding to the position of the wall panel installation hole, and is used to drill the installation hole after the wall panel is formed; the bag inner card plate positioning block 1-2 is provided with a plurality of different shapes, which are installed at the opening of the wall panel skin corresponding to the skin forming template 1-1. The bag inner card plate positioning block 1-2 has a certain thickness, and its upper surface is flush with the upper surface of the skin forming template 1-1. Each bag inner card plate positioning block 1-2 is provided with two positioning holes and two threaded holes, which are respectively used to position and install the bag inner card plate assembly 3, and the positioning hole accuracy is H7. The spacing between the two positioning holes on each bag inner card plate positioning block 1-2 is ±0.02mm. The entire template assembly 1 is first preformed to a certain shape and then welded with the frame assembly 2, and then the entire CNC machining is performed to obtain a precise stacking surface and positioning hole accuracy.

[0031] like Figure 3As shown, the frame assembly 2 includes a partition 2-1, a rib 2-2, a bottom plate 2-3, a caster connecting plate 2-4 and a hanging device 2-5; the partition 2-1, the rib 2-2 and the bottom plate 2-3 are made of 10mm thick invar steel, welded into an integral frame as a load-bearing structure, the upper end surfaces of the partition 2-1 and the rib 2-2 are arranged according to the lower surface of the skin forming template 1-1, the frame assembly 2 is welded below the template assembly 1 after CNC forming, and the overall frame is designed with vents to ensure airflow inside the frame when the mold enters the autoclave for forming, preventing the generation of local temperature differences. Four caster connecting plates 2-4 and four hanging devices 2-5 are arranged on the outer surfaces of both sides of the overall frame, which are respectively used to connect the caster assembly 6 and hoisting and transportation.

[0032] like Figure 4 As shown, the bag inner cardboard assembly 3 includes a plurality of bag inner cardboards of different shapes, which are installed one by one on the cardboard positioning block 1-2 after the skin is stacked and solidified, and are used to position the T-shaped long stringer forming mold assembly 5, and each bag inner cardboard includes an inner cardboard 3-1 and a latch 3-2; the inner cardboard 3-1 is made of invar steel with a thickness of 20mm, and its shape is set according to the T-shaped long stringer to be positioned, and each inner cardboard 3-1 is provided with two positioning holes and two screw through holes, which are used to cooperate with the positioning holes and threaded holes on the cardboard positioning block 1-2 at the corresponding position to achieve positioning and fixation, wherein the positioning hole accuracy is H7, and the hole spacing is ±0.02mm; according to the required To locate the position of the T-shaped long girder forming mold assembly 5, one or more positioning grooves are formed at one or both ends of the inner card plate 3-1. The groove width is set according to the width of the positioned T-shaped long girder forming mold assembly 5, which is used to locate the width direction of one end of the T-shaped long girder forming mold assembly 5. The end is provided with a latch 3-2. The number and position of the latch 3-2 correspond to the positioned T-shaped long girder. As an auxiliary detection device, it is used to detect the center line of the T-shaped long girder. After the T-shaped long girder is positioned, it is necessary to detect whether its position meets the design requirements. Since it is difficult to design a long girder center line detection device for a large curvature wall panel structure, the latch 3-2 is designed to simulate the center line position of the long girder, which is convenient for the detection of the center line of the long girder. The inner card plate assembly 3 of the bag is processed by CNC to ensure the processing accuracy.

[0033] like Figure 5As shown, the bag outer cardboard assembly 4 includes an outer cardboard 4-1, a crossbeam 4-2 and a positioning support 4-3. Multiple crossbeams 4-2 are welded into a horizontal and vertical staggered bracket structure. After welding, the entire structure is CNC machined to machine positioning holes and mounting surfaces on the crossbeams 4-2 to provide support for the outer cardboard 4-1. A positioning support 4-3 is installed at the end of the bracket structure to position and fix the bag outer cardboard assembly 4 at the positioning connection hole on the template assembly 1. Three laser measuring instrument target points are set on each crossbeam 4-2. During installation, the ball point value is adjusted to ensure that the crossbeam 4-2 is installed at the designed position; the outer cardboard 4 -1 is provided with several positioning holes, which are positioned and fixed through the positioning holes on the mounting surface of the crossbeam 4-2. The outer card plate 4-1 corresponds to the position of the inner card plate 3-1, and its end is also provided with a positioning groove, which corresponds one-to-one with the positioning groove at the end of the inner card plate 3-1 to cooperate with the two ends of the positioning T-shaped long stringer forming mold assembly 5; the mounting surface of the crossbeam 4-2 is also provided with a positioning surface, and a latch is set on the positioning surface, which is used to correspond one-to-one with the latch 3-2 on the bag inner card plate assembly 3, and the center line position of the T-shaped long stringer is detected by connecting the pull line.

[0034] like Figure 6 As shown, the T-shaped long girder forming mold assembly 5 is made of invar steel, which is used to clamp and assist in positioning the T-shaped long girder. The number of the T-shaped long girder is consistent with that of the T-shaped long girder. The length of each group is set according to the clamped T-shaped long girder. Each group includes a left core mold 5-1, a right core mold 5-2 and a cover plate 5-3, all of which are strip-shaped parts. The left core mold 5-1 and the right core mold 5-2 are clamped on both sides of the length direction of the T-shaped long girder. The cover plate 5-3 is placed at the upper end surface of the T-shaped long girder along the length direction and clamped between the left core mold 5-1 and the right core mold 5-2 to maintain the spacing between the left core mold 5-1 and the right core mold 5-2. After the T-shaped long girder is clamped by the T-shaped long girder forming mold assembly 5, it is clamped and fixed by a C-shaped clamp. After the T-shaped long girder is preformed to a certain hardness and thickness, it is clamped by the T-shaped long girder forming mold assembly 5 and positioned on the template assembly 1 through the bag inner card assembly 3 and the bag outer card assembly 4.

[0035] like Figure 7 As shown, the caster assembly 6 is provided with four groups, including a caster socket 6-1, a support assembly 6-2, a caster 6-3 and a foot assembly 6-4, which are used for transporting the molding mold; the caster socket 6-1 is fixed with the caster connecting plate 2-4, and the caster socket 6-1 is connected to the caster 6-3 through the support assembly 6-2. After the molding mold is transported to the place, the foot assembly 6-4 is fixed on the ground, and it cooperates with the caster 6-3 to fix the molding mold.

[0036] When the molding die is used, the following steps are included:

[0037] Step 1, stacking composite material wall panel skin prepreg in the forming area on the skin forming template 1-1 until the required number of layers are stacked;

[0038] Step 2, stacking prepreg on the T-shaped long stringer forming mold until the required number of layers is stacked;

[0039] Step 3, the skin and T-shaped long stringer after the prepreg lay-up are respectively packaged in vacuum bags, and then hot-pressed to achieve a preset hardness and thickness;

[0040] Step 4: Install the inner-bag cardboard assembly 3 onto the cardboard positioning block 1 - 2 accordingly, and install the outer-bag cardboard assembly 4 onto the positioning connection hole on the template assembly 1 .

[0041] Step 5, clamp the T-shaped long stringer by the T-shaped long stringer forming mold assembly 5 and fix it with a C-shaped clamp; accurately position the T-shaped long stringer forming mold assembly 5 on the skin through the positioning grooves on the outer clamping plate 4-1 and the inner clamping plate 3-1.

[0042] Step 6: Use a vacuum bag to perform vacuum packaging and place it in an autoclave for curing.

[0043] Step 7, install the drilling jig 1-4 and drill the skin installation holes; connect the pull wire between the corresponding pins on the outer card plate 4-1 and the inner card plate 3-1 to check the centerline position of the T-shaped long stringer.

[0044] The above-described embodiments merely express the implementation methods of the present invention, but they cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A secondary bonding forming mold for aircraft composite wall panels, characterized in that: The molding die comprises a template assembly (1), a frame assembly (2), an inner bag pallet assembly (3), an outer bag pallet assembly (4), and a T-shaped long stringer molding die assembly (5); The template assembly (1) comprises a skin forming template (1-1), a cardboard positioning block (1-2), an air guide groove cover plate (1-3), and a drilling jig (1-4); a forming area is arranged in the middle of the skin forming template (1-1) according to the wall panel skin profile, which is used for stacking and forming the wall panel skin; an air guide groove cover plate (1-3) is arranged outside the forming area, which is used for air guidance during vacuum curing and forming; a positioning connection hole is arranged at the edge of the skin forming template (1-1), which is used for positioning the cardboard assembly (4) outside the connection bag; the drilling jig (1-4) is provided with a plurality of holes for positioning the cardboard assembly (4) outside the connection bag; The mold (1-4) is arranged at the edge of the skin forming template (1-1), corresponding to the position of the wall panel installation hole, and is used to drill the installation hole after the wall panel is formed; the bag inner card plate positioning block (1-2) is provided with a plurality of different shapes, which are installed at the opening of the wall panel skin corresponding to the skin forming template (1-1), and its upper surface is flush with the upper surface of the skin forming template (1-1); each bag inner card plate positioning block (1-2) is provided with a positioning hole and a threaded hole, which are respectively used to position and install the bag inner card plate assembly (3); The frame assembly (2) comprises a partition (2-1), a rib (2-2) and a bottom plate (2-3); the partition (2-1), the rib (2-2) and the bottom plate (2-3) are fixedly connected to form an integral frame as a load-bearing structure, and the upper end surfaces of the partition (2-1) and the rib (2-2) are arranged according to the lower surface of the skin forming template (1-1) and fixedly connected below the template assembly (1); The bag inner cardboard assembly (3) comprises a plurality of bag inner cardboards of different shapes, which are mounted one by one on the cardboard positioning blocks (1-2) after the skin is stacked and solidified, and are used to position the T-shaped long stringer forming mold assembly (5), and each bag inner cardboard comprises an inner cardboard (3-1); the shape of the inner cardboard (3-1) is set according to the T-shaped long stringer to be positioned, and each inner cardboard (3-1) is provided with a positioning hole and a screw through hole, which are used to cooperate with the positioning hole and the threaded hole on the cardboard positioning block (1-2) at the corresponding position to achieve positioning and fixing, and one or more positioning grooves are formed at one end or both ends of the inner cardboard (3-1) to position the T-shaped long stringer forming mold assembly (5) in the width direction; The bag outer cardboard assembly (4) comprises an outer cardboard (4-1), a crossbeam (4-2) and a positioning support (4-3); a plurality of crossbeams (4-2) are fixedly connected to form a bracket structure that is staggered in a horizontal and vertical direction, and a positioning support (4-3) is installed at the end of the bracket structure for positioning and fixing the bag outer cardboard assembly (4) at the positioning connection hole on the template assembly (1); a plurality of outer cardboards (4-1) are provided, which are positioned and fixed on the crossbeam (4-2), and the outer cardboard (4-1) corresponds to the position of the inner cardboard (3-1), and the end of the outer cardboard (4-1) is also provided with a positioning groove, which corresponds one-to-one with the positioning groove at the end of the inner cardboard (3-1) to cooperate with the two ends of the positioning T-shaped long stringer forming mold assembly (5); The T-shaped long stringer forming mold assembly (5) is used to clamp and assist in positioning the T-shaped long stringer. The number of the T-shaped long stringer is consistent with the number of the T-shaped long stringers, and the length is set according to the clamped T-shaped long stringer. Each group includes a left core mold (5-1), a right core mold (5-2) and a cover plate (5-3), all of which are strip-shaped parts. The left core mold (5-1) and the right core mold (5-2) are clamped on both sides of the length direction of the T-shaped long stringer. The cover plate (5-3) is placed on the upper end surface of the T-shaped long stringer along the length direction and clamped between the left core mold (5-1) and the right core mold (5-2) to maintain the distance between the left core mold (5-1) and the right core mold (5-2). After the T-shaped long stringer forming mold assembly (5) is clamped and fixed by a C-shaped clamp.

2. The secondary bonding forming mold for aircraft composite wall panels according to claim 1, characterized in that: The outer surfaces of both sides of the integral frame composed of the partition plate (2-1), the rib plate (2-2) and the bottom plate (2-3) are provided with hanging devices (2-5) for hanging and transportation.

3. The secondary bonding forming mold for aircraft composite wall panels according to claim 1, characterized in that: Three laser measuring instrument target points are arranged on each crossbeam (4-2), and the auxiliary crossbeam (4-2) is installed at the designed position.

4. The secondary bonding forming mold for aircraft composite wall panels according to claim 1, characterized in that: The end of the positioning groove of the inner clamping plate (3-1) is provided with a latch (3-2), and a positioning surface is also provided on the crossbeam (4-2). The latch is provided on the positioning surface. The two latches are matched one by one, and the centerline position of the T-shaped long beam is detected by connecting a pull line.

5. The secondary bonding forming mold for aircraft composite wall panels according to claim 1, characterized in that: The molding die also includes a caster assembly (6) for transporting and fixing the molding die; caster connecting plates (2-4) are provided on the outer surfaces of both sides of the overall frame composed of the partition (2-1), the rib plate (2-2) and the bottom plate (2-3) for fixing and connecting the caster assembly (6).

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