Composite elongated structure beam curing balance tooling and method of manufacturing

Abstract

The application provides a composite material elongated structure beam curing balance tool and a manufacturing method thereof, and belongs to the technical field of composite material elongated structure beam forming process equipment. The tool comprises two groups of grounding support assemblies arranged at intervals along the length direction of a forming die and auxiliary anti-overturning frames arranged at the two ends of the forming die. The grounding support assembly comprises a grounding support base, a balance plate and a swing limiting block. The two ends of the balance plate are provided with support cylinders. The cylinder groove in the middle lower part is tangent to the inverted top corner of the top of the grounding support base, so that the balance plate can swing and level. The two groups of balance plates form four support positions, and the swing limiting block is used for limiting the swing amplitude. The manufacturing method determines the sizes of various components according to the size of the forming die, processes and configures the components to form the tool. The application can reduce the deflection deformation of the forming die caused by the change of placement conditions and the dead weight, improve the curing forming precision and placement stability.

Description

Technical Field

[0001] This invention belongs to the technical field of composite material slender structural beam forming process equipment, specifically, it relates to a curing and balancing tooling for composite material slender structural beams and its manufacturing method. Background Technology

[0002] In the field of aerospace equipment manufacturing, slender structural beams (such as load-bearing cylindrical trusses and main beams for hatches) are key load-bearing structural components with high geometric precision requirements. With the widespread application of carbon fiber reinforced composite materials, the manufacturing of these slender components often employs autoclave curing processes. During the curing process, the composite prepreg needs to undergo resin, gel, or curing stages under high temperature and high pressure to ultimately form a final product.

[0003] In the curing and molding process of slender composite beams, the deformation due to the self-weight of the mold during placement is a significant factor that can negatively impact the quality of the final molded part through various mechanisms. Specifically, the impact is mainly reflected in the dimensional deviation of the product caused by the bending deformation of the mold due to its own weight; the internal residual stress induced by the deformation of the mold due to its own weight, which exacerbates the warping and springback deformation of the product after demolding.

[0004] Currently, in the design and manufacturing of large, high-precision composite material molding dies, three-point or four-point supports are typically used at the bottom of the die, or the local rigidity of the die is increased to control self-weight deformation, reduce the impact of operating conditions on die deformation, and ensure surface accuracy. However, three-point support is suitable for triangular or circular die bases, while four-point support is suitable for rectangular or square die bases. A major technical challenge in this field is how to effectively reduce or balance deformation caused by die placement and self-weight deflection on large-tonnage dies for slender structural beams through a reasonable arrangement of support points and an adaptive leveling structure, thereby ensuring the geometric accuracy of the slender structural beams during the curing process, while simultaneously achieving strong manufacturing adaptability, low cost, and ease of use. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the purpose of this invention is to provide a curing and balancing fixture for slender composite beams and its manufacturing method.

[0006] According to the present invention, the composite material slender structural beam curing and balancing fixture is used to support the molding die of the composite material slender structural beam, and includes: two sets of ground support components spaced apart along the length direction of the molding die and a pair of auxiliary anti-tipping frames respectively disposed at both ends of the molding die; The grounding support assembly consists of two sets, and the grounding support assembly includes: a grounding support base, a balance plate, and a swing limit block; The balance plate is disposed above the ground support base and extends along the length of the molding die. The two ends of the balance plate are respectively provided with balance plate support cylinders for contacting the molding die. The four balance plate support cylinders in the two sets of ground support assemblies together form four support positions for supporting the molding die. The top of the grounding support base is rounded. A cylindrical groove for the balance plate is provided below the center line of the balance plate. The cylindrical groove of the balance plate is tangentially fitted to the rounded top corner so that the balance plate can swing and level relative to the ground support base; The swing limiting block is disposed below both ends of the balance plate and has an movable gap with the balance plate to limit the swing amplitude of the balance plate. The auxiliary anti-tipping frame is used to tilt the molding die and maintain the stability of the molding die.

[0007] Preferably, the two sets of grounding support bases are respectively located at a position one-quarter of the total length of the molding mold from both ends; The grounding support base is in the shape of an equilateral triangular prism, and its grounding length is one-fifteenth of the total length of the molding die; The length of the balance plate is one-quarter of the total length of the molding die, and the balance plate is symmetrically arranged with respect to the center line of the molding die.

[0008] Preferably, the side length of the equilateral triangle cross-section of the equilateral triangular section of the grounding support base is its grounding length. The radius of the rounded corner is one-third of the side length of the equilateral triangle cross section; The radius of the arc of the cylindrical groove of the balance plate is greater than the radius of the arc of the rounded corner.

[0009] Preferably, the balance plate support cylinder is a quarter-cylinder structure with a radius of 30 mm and protrudes 10 mm relative to the upper surface of the balance plate; The width of the balance plate is 10 mm wider than the width of the forming mold. The width of the grounding support base is 10 mm wider than the width of the balance plate. The thickness of the balance plate is determined by rounding down to one-quarter of the mold height.

[0010] Preferably, the movable gap between the swing limiting block and the balance plate is 5 mm. The width of the swing limiting block is one-tenth of the length of the balance plate, and the swing limiting block is provided with weight reduction holes.

[0011] Preferably, the grounding support base, balance plate, and swing limit block are made of 45 tempered steel; the auxiliary anti-tipping frame is made of Q235A material and has a triangular counterweight support structure. The contact area between the auxiliary anti-tipping frame and the forming mold accounts for three-quarters of the total area of ​​the end face of the forming mold.

[0012] Preferably, the grounding support base, balance plate, swing limit block and auxiliary anti-tipping frame are all provided with lifting holes and equipped with lifting eye screws that cooperate with the lifting holes.

[0013] The manufacturing method of the composite material slender structural beam curing balancing fixture provided by the present invention includes: Step S1: Determine the structural dimensions of each component of the curing balancing fixture based on the structural dimensions of the molding die to be supported; Step S2: Manufacture the grounding support base, balance plate, swing limit block and auxiliary anti-tipping frame according to the structural dimensions determined in step S1; Step S3: Configure the grounding support base, balance plate and swing limiting block according to the predetermined structural relationship, so that the balance plate cylindrical groove of the balance plate is tangentially engaged with the rounded corner of the top of the grounding support base, and a movable gap is formed between the swing limiting block and the balance plate. Step S4: Two sets of grounding support components are arranged along the length of the molding die, so that the four balance plate support cylinders form four support positions for supporting the molding die, and a pair of auxiliary anti-tipping frames are arranged at both ends of the molding die to form the curing balance tooling for the slender structural beam of the composite material.

[0014] Preferably, in step S1, the total length of the molding die is L0, the width is A0, and the height is H0. The two sets of grounding support bases are respectively set at a position 1 / 4L0 away from both ends of the molding die. The grounding length of the grounding support base is determined to be 1 / 15L0. The length of the balance plate is determined to be 1 / 4L0, and the width is determined to be A0+10 mm. The thickness of the balance plate is determined by rounding down H0 / 4. The width of the grounding support base is determined to be the width of the balance plate plus 10 mm. The width of the swing limiting block is determined to be one-tenth of the length of the balance plate.

[0015] Preferably, in step S2, the grounding support base is processed into an equilateral triangular prism with a rounded top corner, a cylindrical groove for the balance plate is formed below the center line of the balance plate, and balance plate support cylinders are formed above both ends of the balance plate, and weight reduction holes are formed on the swing limiting block; in step S3, a 5 mm clearance is reserved between the swing limiting block and the balance plate; the auxiliary anti-tipping frame is formed by machining or welding of a single piece of material.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention uses two sets of ground support bases and two sets of swingable balance plates to expand two ground support positions into four support positions for supporting the molding die, which helps to reduce the bending deformation of the molding die due to its own weight and improve the curing and molding accuracy of slender composite beams. 2. The present invention uses the cylindrical groove of the balance plate to tangentially engage with the rounded top corner of the ground support base, so that the balance plate can swing and level according to the actual placement and stress state of the forming mold, thereby improving the adaptability of the tooling to different placement conditions. 3. This invention limits the swing amplitude of the balance plate by setting swing limiting blocks below both ends of the balance plate, and improves the overall placement stability by using auxiliary anti-tipping frames at both ends of the molding mold, which helps to ensure the support safety and stability during the curing process. 4. The present invention determines the structural dimensions of the grounding support base, balance plate and swing limit block according to the length, width and height of the molding die, so that the same design concept can be applied to molding dies of slender composite beams of different sizes, and has good adaptability and versatility. Attached Figure Description

[0017] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the curing and balancing fixture for the slender composite beam of the present invention; Figure 2 This is a three-view schematic diagram of the dimensions of the curing and balancing tooling for slender composite beams according to an embodiment of the present invention.

[0018] The diagram shows: Detailed Implementation

[0019] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the scope of protection of the present invention.

[0020] like Figure 1 and Figure 2As shown, this embodiment of the invention provides a curing and balancing fixture for a slender composite beam, used to support a molding die 1 for the slender composite beam. The fixture includes two sets of grounding support assemblies spaced apart along the length of the molding die 1, and a pair of auxiliary anti-tipping frames 4 respectively disposed at both ends of the molding die 1. The grounding support assemblies include: a grounding support base 2, a balancing plate 3, and a swing limiting block 5. The balancing plate 3 is disposed above the grounding support base 2, extends along the length of the molding die 1, and has balancing plate support cylinders 31 at both ends that contact the molding die 1. There are two sets of grounding support assemblies, and the two sets of grounding support assemblies have four balancing... The plate support cylinders 31 together form four support positions for supporting the molding mold 1; the top of the ground support base 2 is provided with a rounded corner, and the lower part of the middle of the balance plate 3 is provided with a balance plate cylindrical groove 32. The balance plate cylindrical groove 32 is specifically set at the center line of the balance plate 3 and is tangentially engaged with the rounded corner, so that the balance plate 3 can swing and level relative to the ground support base 2; the swing limit block 5 is set below both ends of the balance plate 3 and has an movable gap with the balance plate 3 to limit the swing amplitude of the balance plate 3; the auxiliary anti-tipping frame 4 is set at both ends of the molding mold 1 to limit the tilting of the molding mold 1 and ensure the overall stability of the molding mold 1 after placement. Specifically, the balance plate support cylinder 31 can be a quarter support cylinder.

[0021] Furthermore, two sets of grounding support bases 2 are respectively positioned at one-quarter of the total length of the molding mold 1 at both ends; the grounding support bases 2 are equilateral triangular prisms, and their grounding length is one-fifteenth of the total length of the molding mold 1. The length of the balancing plate 3 is one-quarter of the total length of the molding mold 1, and the balancing plate 3 is symmetrically arranged with respect to its center line; the radius of the arc of the cylindrical groove 32 of the balancing plate is greater than the radius of the arc of the rounded corner of the grounding support base 2, and the radius of the rounded corner is one-third of the side length of the equilateral triangle section of the grounding support base 2, which is the grounding length of the grounding support base 2. In a more specific embodiment, the balancing plate support cylinder 31 protrudes about 10 mm from the upper surface of the balancing plate 3, the width of the grounding support base 2 is 10 mm wider than the width of the balancing plate 3, the width of the balancing plate 3 is 10 mm wider than the width of the molding mold 1, the thickness of the balancing plate 3 is determined by rounding down to one-quarter of the height of the molding mold 1, and the radius of the balancing plate support cylinder 31 is 30 mm.

[0022] Furthermore, the aforementioned grounding support base 2, balance plate 3, and swing limit block 5 are made of 45 tempered steel. The movable gap between the swing limit block 5 and the balance plate 3 is 5 mm. The width of the swing limit block 5 is one-tenth of the length of the balance plate 3, and the swing limit block 5 is provided with weight reduction holes. The auxiliary anti-tipping frame 4 is made of Q235A material and has a triangular counterweight support structure. The contact area between the auxiliary anti-tipping frame 4 and the forming mold 1 accounts for three-quarters of the total area of ​​the end face of the forming mold 1.

[0023] Let the total length of the molding mold 1 be L0, the width be A0, and the height be H0. Two sets of grounding support bases 2 are respectively set at positions L1 away from the corresponding ends of the molding mold 1, where L1 = 1 / 4L0; the grounding length of the grounding support base 2 is L2, where L2 = 1 / 15L0; the length of the balance plate 3 is L3, where L3 = 1 / 4L0. Since the grounding support base 2 is in the shape of an equilateral triangular prism, the side length of its equilateral triangular cross section is the grounding length L2. Therefore, the radius of the rounded corner at the top of the grounding support base 2 is R1 = L2 / 3 = L0 / 45. Let the radius of the rounded corner of the cylindrical groove 32 of the balance plate be R2, then R2 > R1, so that the cylindrical groove 32 of the balance plate and the rounded corner at the top of the grounding support base 2 form a tangential fit, thereby enabling the balance plate 3 to swing and level relative to the grounding support base 2 with the fit position of the two as the swing fulcrum.

[0024] Let the width of the balance plate 3 be A1, then A1 = A0 + 10mm; let the width of the grounding support base 2 be A2, then A2 = A1 + 10mm = A0 + 20mm, thus ensuring that the widths of both the grounding support base 2 and the balance plate 3 are compatible with the width of the molding mold 1. The thickness of the balance plate 3 is determined by rounding down H0 / 4. The radius of the arc of the balance plate support cylinder 31 is 30mm, and it protrudes approximately 10mm from the upper surface of the balance plate 3. Each balance plate 3 has a balance plate support cylinder 31 at both ends, and the two sets of balance plates 3 form four support positions for contacting the molding mold 1, thereby expanding the two grounding support positions corresponding to the two grounding support bases 2 into four support positions for supporting the molding mold 1.

[0025] Let the width of the swing limit block 5 be L4, then L4 = L3 / 10 = L0 / 40; a 5mm clearance is reserved between the swing limit block 5 and the balance plate 3, and a weight-reducing hole is provided on the swing limit block 5. After the molding mold 1 is placed on the four balance plate support cylinders 31, when the molding mold 1 experiences different forces at the two ends of the same balance plate 3 due to its own weight or actual placement, the balance plate 3 can generate adaptive swing through the tangential fit between the balance plate cylinder groove 32 and the rounded top corner of the ground support base 2, so that the corresponding two balance plate support cylinders 31 adjust their positions with the balance plate 3; when the balance plate 3 swings to the predetermined amplitude, the swing limit block 5 limits the balance plate 3 to prevent its swing amplitude from being too large. Thus, the two sets of balance plates 3 can swing and level separately, so that the four support positions adapt to the actual placement and force state of the molding mold 1.

[0026] Furthermore, assuming the total end face area of ​​the molding mold 1 is S0, the contact area between the auxiliary anti-tipping frame 4 and the molding mold 1 is S1 = 3 / 4S0. The specific dimensions of the auxiliary anti-tipping frame 4 are determined based on the weight and end face area of ​​the molding mold 1, and a triangular counterweight support structure is used to set at both ends of the molding mold 1. This provides auxiliary support to the ends of the molding mold 1, based on the main support provided by the two sets of grounding support components, ensuring the overall stability of the molding mold 1 after it is placed in the curing balance fixture.

[0027] In this embodiment, the grounding support base 2, the balance plate 3, and the swing limit block 5 are made of 45 steel. For applications requiring long-term or high-frequency use, alloy steel with higher strength and better wear resistance can be used to manufacture the aforementioned support structure parts, depending on actual usage requirements. The auxiliary anti-tipping frame 4 is made of Q235A material and can be formed by machining or welding, depending on its specific dimensions.

[0028] Furthermore, the grounding support base 2, balance plate 3, swing limit block 5, and auxiliary anti-tipping frame 4 are all equipped with lifting holes for hoisting, and are fitted with eye bolts that mate with the lifting holes, so as to facilitate the transfer and hoisting of each part during processing, assembly, and use. After the structural dimensions of each part are determined, they are processed according to the corresponding three-dimensional and two-dimensional drawings to form the grounding support base 2, balance plate 3, swing limit block 5, and auxiliary anti-tipping frame 4.

[0029] Therefore, after determining the total length L0, width A0, and height H0 of the molding mold 1, the corresponding structural dimensions of the ground support base 2, balance plate 3, and swing limit block 5 can be determined based on the above dimensional relationships. The dimensions of the auxiliary anti-tipping frame 4 are then determined in conjunction with the weight and end face area of ​​the molding mold 1, allowing the resulting curing balancing fixture to be adapted to molding molds 1 of slender composite beams of different sizes. During use, the two ground support bases 2 and the two swingable balance plates 3 cooperate to form four actual support positions. The adaptive swing of the balance plates 3 adjusts the force state of each support position. Simultaneously, the swing limit block 5 restricts the swing amplitude of the balance plates 3, and the auxiliary anti-tipping frames 4 at both ends of the molding mold 1 improve overall placement stability, thereby reducing the impact of the molding mold 1's deflection deformation caused by changes in placement conditions and its own weight on the curing accuracy of the slender composite beam.

[0030] This invention also provides a method for manufacturing a curing balancing fixture for slender composite beams according to the present invention, comprising: Step S1: Determine the structural dimensions of each component of the curing balancing fixture based on the structural dimensions of the molding mold 1 to be supported; Step S2: Manufacture the grounding support base 2, balance plate 3, swing limit block 5 and auxiliary anti-tipping frame 4 according to the structural dimensions determined in step S1; Step S3: Configure the grounding support base 2, balance plate 3 and swing limit block 5 according to the predetermined structural relationship; Step S4: Configure two sets of grounding support structures and auxiliary anti-tipping frame 4 according to the predetermined support positions to form a solidification and balancing fixture.

[0031] Specifically, step S1 includes: obtaining the total length, width, and height of the molding mold 1, and determining the setting positions of the two sets of grounding support bases 2, the grounding length of the grounding support bases 2, and the length of the balance plate 3 based on the total length of the molding mold 1; determining the width of the grounding support bases 2 and the balance plate 3, and the thickness of the balance plate 3 based on the width and height of the molding mold 1; determining the size of the swing limit block 5 based on the size of the balance plate 3; determining the size of the auxiliary anti-tipping frame 4 based on the weight and end face area of ​​the molding mold 1; and when determining the support arrangement along the length direction of the molding mold 1, based on the slender beam structure characteristics of the molding mold 1, simplifying the molding mold 1 along the length direction into a one-dimensional linear structure for support position design, and making the width of each support structure part match the width of the molding mold 1. In a more specific embodiment, the total length of the molding mold 1 is L0, the width is A0, and the height is H0. Two sets of grounding support bases 2 are respectively set at a position 1 / 4L0 away from both ends of the molding mold 1. The grounding length of the grounding support base 2 is 1 / 15L0. The length of the balance plate 3 is 1 / 4L0, the width is A0+10mm, and its thickness is determined by rounding up H0 / 4. The width of the grounding support base 2 is the width of the balance plate 3 plus 10mm. The radius of the rounded corner at the top of the grounding support base 2 is one-third of the side length of its equilateral triangle section, and the radius of the rounded corner of the cylindrical groove 32 of the balance plate is greater than the radius of the rounded corner. The width of the swing limiting block 5 is one-tenth of the length of the balance plate 3.

[0032] Specifically, step S2 includes: manufacturing a grounding support base 2, a balance plate 3, and a swing limiting block 5 using 45 steel. The grounding support base 2 is machined into an equilateral triangular prism shape, with a rounded top corner. A balance plate cylindrical groove 32 is formed in the lower middle part of the balance plate 3, and balance plate support cylinders 31 are formed above both ends of the balance plate 3. Weight reduction holes are formed on the swing limiting block 5. The radius of the balance plate support cylinder 31 is 30mm, and it protrudes approximately 10mm from the upper surface of the balance plate 3. An auxiliary anti-tipping frame 4 is manufactured using Q235A material and is made into a triangular counterweight support structure, such that the contact area between the auxiliary anti-tipping frame 4 and the forming mold 1 accounts for three-quarters of the total area of ​​the end face of the forming mold 1. The auxiliary anti-tipping frame 4 is formed by machining or welding according to its specific dimensions. In an optional embodiment, when the curing balancing fixture needs to be used for a long time or at a high frequency, the grounding support base 2, the balancing plate 3, and the swing limit block 5 may also be made of alloy steel with higher strength and better wear resistance.

[0033] Specifically, step S3 includes: placing the balance plate 3 above the corresponding grounding support base 2, such that the cylindrical groove 32 of the balance plate 3 at the lower middle part is tangentially engaged with the rounded corner at the top of the grounding support base 2, so that the balance plate 3 can swing and level relative to the grounding support base 2; placing the swing limiting block 5 below both ends of the balance plate 3, and leaving a 5mm gap between the swing limiting block 5 and the balance plate 3 to limit the swing amplitude of the balance plate 3, thereby forming a set of grounding support components; forming two sets of grounding support components in the same manner.

[0034] Specifically, step S4 includes: setting two sets of grounding support components at intervals along the length of the molding mold 1, so that the four balance plate support cylinders 31 on the two sets of balance plates 3 together form four support positions for supporting the molding mold 1, and setting a pair of auxiliary anti-tipping frames 4 at both ends of the molding mold 1, thereby forming the composite material slender structure beam curing balance tooling.

[0035] Furthermore, hoisting holes are provided on the grounding support base 2, balance plate 3, swing limit block 5 and auxiliary anti-tipping frame 4, and corresponding lifting eye screws are configured to facilitate the transfer and hoisting of each component; after the dimensions of each component are determined, they can be processed and manufactured according to the corresponding three-dimensional and two-dimensional drawings.

[0036] In summary, this invention constitutes a grounding support assembly through a grounding support base 2, a swingable balance plate 3, and a swing limiting block 5. Two sets of balance plates 3 form four support positions for supporting the molding mold 1. At the same time, the swing leveling is achieved through the tangential fit between the cylindrical groove 32 of the balance plate and the rounded corner of the top of the grounding support base 2. The overall stability is improved by the auxiliary anti-tipping frames 4 at both ends of the molding mold 1. This reduces the impact of the bending deformation of the molding mold 1 caused by changes in placement conditions and its own weight on the curing accuracy of the slender composite beam. Furthermore, the invention can determine the corresponding tooling structure dimensions according to the molding mold 1 of different sizes, thereby improving the adaptability of the tooling.

[0037] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not 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 application.

[0038] Specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A curing and balancing fixture for slender composite beams, characterized in that, The composite material slender structural beam curing and balancing fixture is used to support the molding die (1) of the composite material slender structural beam, including: two sets of ground support components spaced apart along the length direction of the molding die (1) and a pair of auxiliary anti-tipping frames (4) respectively set at both ends of the molding die (1). The grounding support assembly consists of two sets, including: a grounding support base (2), a balance plate (3), and a swing limit block (5). The balance plate (3) is positioned above the ground support base (2) and extends along the length of the molding mold (1). The two ends of the balance plate (3) are respectively provided with balance plate support cylinders (31) for contacting the molding mold (1). The four balance plate support cylinders (31) in the two sets of ground support assemblies together form four support positions for supporting the molding mold (1). The top of the grounding support base (2) is provided with a rounded corner. The balance plate (3) is provided with a cylindrical groove (32) below the center line. The cylindrical groove (32) of the balance plate is tangentially fitted to the rounded top corner so that the balance plate (3) can swing and level relative to the ground support base (2); The swing limiting block (5) is located below both ends of the balance plate (3) and has an movable gap with the balance plate (3) to limit the swing amplitude of the balance plate (3); The auxiliary anti-tipping frame (4) is used to tilt the molding mold (1) and maintain the stability of the molding mold (1).

2. The composite material slender structural beam curing and balancing fixture according to claim 1, characterized in that, The two sets of grounding support bases (2) are respectively set at a position one-quarter of the total length of the molding mold (1) from both ends; The grounding support base (2) is in the shape of an equilateral triangular prism, and its grounding length is one-fifteenth of the total length of the molding die (1); The length of the balance plate (3) is one-quarter of the total length of the molding mold (1), and the balance plate (3) is symmetrically arranged on the left and right sides with respect to the center line of the molding mold (1).

3. The composite material slender structural beam curing and balancing fixture according to claim 2, characterized in that, The equilateral triangular cross-section of the grounding support base (2) has a side length equal to its grounding length. The radius of the rounded corner is one-third of the side length of the equilateral triangle cross section; The radius of the arc of the cylindrical groove (32) of the balance plate is greater than the radius of the arc of the rounded top corner.

4. The composite material slender structural beam curing and balancing fixture according to claim 1, characterized in that, The balance plate support cylinder (31) is a quarter-cylinder structure with a radius of 30 mm and protrudes 10 mm from the upper surface of the balance plate (3). The width of the balance plate (3) is 10 mm wider than the width of the forming mold (1). The width of the grounding support base (2) is 10 mm wider than the width of the balance plate (3). The thickness of the balance plate (3) is determined by rounding down to one-quarter of the height of the forming mold (1).

5. The composite material slender structural beam curing and balancing fixture according to claim 1, characterized in that, The movable gap between the swing limiting block (5) and the balance plate (3) is 5 mm. The width of the swing limiting block (5) is one-tenth of the length of the balance plate (3), and the swing limiting block (5) is provided with weight reduction holes.

6. The composite material slender structural beam curing and balancing fixture according to claim 1, characterized in that, The grounding support base (2), balance plate (3) and swing limit block (5) are made of 45 tempered steel; the auxiliary anti-tipping frame (4) is made of Q235A material and has a triangular counterweight support structure. The contact area between the auxiliary anti-tipping frame (4) and the forming mold (1) accounts for three-quarters of the total area of ​​the end face of the forming mold (1).

7. The composite material slender structural beam curing and balancing fixture according to claim 1, characterized in that, The grounding support base (2), balance plate (3), swing limit block (5) and auxiliary anti-tipping frame (4) are all provided with lifting holes and equipped with lifting eye screws that cooperate with the lifting holes.

8. A method for manufacturing a curing and balancing fixture for a slender composite beam as described in any one of claims 1 to 7, characterized in that, include: Step S1: Determine the structural dimensions of each component of the curing balance tooling based on the structural dimensions of the molding die (1) to be supported; Step S2: Manufacture the grounding support base (2), balance plate (3), swing limit block (5) and auxiliary anti-tipping frame (4) according to the structural dimensions determined in step S1. Step S3: Configure the grounding support base (2), balance plate (3) and swing limiting block (5) according to the predetermined structural relationship, so that the balance plate cylindrical groove (32) of the balance plate (3) is tangentially engaged with the rounded corner of the top of the grounding support base (2), and a movable gap is formed between the swing limiting block (5) and the balance plate (3). Step S4: Two sets of grounding support components are arranged along the length of the molding mold (1) so that the four balance plate support cylinders (31) form four support positions for supporting the molding mold (1), and a pair of auxiliary anti-tipping frames (4) are arranged at both ends of the molding mold (1) to form the curing balance tooling for the composite material slender structure beam.

9. The manufacturing method of the composite material slender structural beam curing balancing fixture according to claim 8, characterized in that, In step S1, the total length of the molding mold (1) is L0, the width is A0, and the height is H0. The two sets of grounding support bases (2) are respectively set at a position 1 / 4L0 away from both ends of the molding mold (1). The grounding length of the grounding support base (2) is determined to be 1 / 15L0. The length of the balance plate (3) is determined to be 1 / 4L0 and the width is determined to be A0+10 mm. The thickness of the balance plate (3) is determined by rounding up H0 / 4. The width of the grounding support base (2) is determined to be the width of the balance plate (3) plus 10 mm. The width of the swing limit block (5) is determined to be one-tenth of the length of the balance plate (3).

10. The manufacturing method of the composite material slender structural beam curing balancing fixture according to claim 8, characterized in that, In step S2, the grounding support base (2) is processed into an equilateral triangular prism with a rounded top corner, a balance plate cylindrical groove (32) is formed below the center line of the balance plate (3), and balance plate support cylinders (31) are formed above both ends of the balance plate (3). Weight reduction holes are formed on the swing limiting block (5). In step S3, a 5 mm gap is reserved between the swing limiting block (5) and the balance plate (3). The auxiliary anti-tipping frame (4) is formed by machining or welding.

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