Composite material product based on co-curing technology, processing device and design method

Abstract

The invention discloses a composite material product based on a co-curing technology, a processing device and a design method, and belongs to the technical field of composites.The composite material product comprises a rack and further comprises two sets of pushing mechanisms symmetrically installed on the rack and used for linearly pushing the composite material product subjected to preliminary bolt connection; the screwing-on mechanism is installed on the rack and used for conducting screwing-on treatment on a bolt assembly in the composite material product subjected to preliminary bolt connection; the pushing mechanism comprises a pushing wheel A, a pushing wheel B and a rotating shaft A. The pushing wheel A and the pushing wheel B are symmetrically arranged on the upper side and the lower side of the composite material product, the pushing wheel A is fixedly connected with the rotating shaft A rotationally connected to the machine frame, and the pushing wheel B is fixedly connected with a rotating shaft C. The bearing assembly is installed on the machine frame and used for bearing the composite material product. The bearing is used for bearing the rotating shaft C; according to the automatic assembling device, the composite material products which comprise the H-shaped steel and the filling modules and are connected through the bolt assemblies can be automatically assembled.

Description

Technical Field

[0001] The present invention belongs to the technical field of tourism signboards, and in particular relates to composite material products, processing devices and design methods based on co-curing technology. Background Art

[0002] Carbon fiber reinforced resin matrix composites have many excellent properties. Compared with traditional metal materials, carbon fiber reinforced resin matrix composites have high specific strength and specific modulus. Therefore, structural parts based on carbon fiber reinforced resin matrix composites have the characteristics of light weight, high strength, and structural designability, and are widely used in the design and manufacturing of aerospace and various aircraft. With the reduction of the cost of carbon fiber materials and the development of the aerospace industry, the application proportion of composite materials on various aircraft is also increasing continuously.

[0003] Co-curing molding is a new type of composite material molding technology. The co-cured system composite materials prepared have the characteristics of high temperature stability, excellent mechanical properties, good heat insulation performance, and high strength. For example, Patent CN112720950A discloses a composite material molding tool suitable for H-shaped beams and its co-curing molding method; it adopts a co-curing method, with two flexible modules arranged on both sides of the beam as molds, and positioning pins are used to position the molds, which not only ensures the molding quality of the beam but also reduces the weight.

[0004] However, when assembling composite material products including H-shaped steel and filling modules and connected by bolt assemblies, a torque wrench or pneumatic tool is generally used to fasten the bolt assemblies, and mainly manual operation is still adopted for the fastening treatment of the bolt assemblies, resulting in low assembly accuracy and low automation degree. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides composite material products, processing devices and design methods based on co-curing technology, and solves the above problems.

[0006] To achieve the above objectives, the present invention is realized through the following technical solutions: A processing device for composite material products based on co-curing technology, including a frame, and further including:

[0007] A pushing mechanism, provided with two groups and symmetrically installed on the frame, for linearly pushing the composite material product with preliminary bolt connection;

[0008] A fastening mechanism, installed on the frame, for fastening the bolt assemblies in the composite material product with preliminary bolt connection;

[0009] The pushing mechanism includes a pushing wheel A, a pushing wheel B, and a rotating shaft A. The pushing wheel A and the pushing wheel B are symmetrically arranged on the upper and lower sides of the composite material product. The pushing wheel A is fixedly connected to the rotating shaft A rotatably connected to the frame. A rotating shaft C is fixedly connected to the pushing wheel B. It further includes:

[0010] A bearing assembly, installed on the frame, for bearing the rotating shaft C.

[0011] Based on the above technical solution, the present invention also provides the following optional technical solutions:

[0012] Further technical solution: The bearing assembly includes a rotating shaft B, a hexagonal connecting block, and a linear motion part A. The two rotating shafts B are symmetrically and rotatably installed on the frame. The rotating shaft B is embedded in the installation groove opened on the rotating shaft B. A hexagonal connecting block is fixedly connected to the output shaft of the rotating shaft B. The hexagonal connecting block is slidably matched with the hexagonal slot opened on the rotating shaft C. A motor A detachably connected to the frame is connected to both the rotating shaft A and one of the rotating shafts B. Platforms are provided on the pushing wheel A and the pushing wheel B.

[0013] Further technical solution: The upper buckling mechanism includes two support frames A. It further includes:

[0014] A displacement assembly, installed on the frame, for pushing the support frame A to perform linear motion in the horizontal or vertical direction;

[0015] An upper buckling assembly, correspondingly installed on the two support frames A, for performing the upper buckling process on the bolt assembly;

[0016] The upper buckling assembly includes a mounting disc, a guide rod C, an incomplete hexagonal turntable, a spur gear, a rotating shaft C, and a chuck. The mounting disc is slidably matched with the guide rod C fixedly connected to the support frame A. Elastic members are symmetrically installed on the mounting disc. The elastic members are sleeved on the guide rod C and their two ends are fixedly connected to the mounting disc and the support frame A. The incomplete hexagonal turntable is rotatably installed on the mounting disc. The two rotating shafts C are symmetrically and rotatably installed on the mounting disc. A spur gear meshing with the incomplete gear fixedly connected to the incomplete hexagonal turntable is fixedly connected to the rotating shaft C. The rotating shaft C is fixedly connected to the output shaft of the motor B embedded in the mounting disc. Two linear motion parts C are symmetrically embedded in the incomplete hexagonal turntable. The chuck is fixedly connected to the output shaft of the linear motion part C.

[0017] Further technical solution: The displacement component includes an electric slide table A, a guide rod A, a support frame B, an electric slide table B, a guide rod B, and a linear motion component B. The guide rod A fixedly connected to the upper part of the machine frame penetrates through the electric slide table A. The upper end of the electric slide table A contacts the inner side of the upper end of the machine frame. A support frame B is fixedly connected to the lower end of the electric slide table A. A guide rod B penetrating through the electric slide table B is fixedly connected to the support frame B. A linear motion component B with an output shaft fixedly connected to the upper end of the support frame A is fixedly connected to the lower end of the electric slide table B.

[0018] Further technical solution: A pressure sensor is embedded and installed in the platform, and a pressure-resistant plate is fixedly connected to the pressure sensor.

[0019] Further technical solution: The circumferences of the arc surfaces on the driving wheel A and the driving wheel B are equal to the distance between two screw holes on the composite material product.

[0020] Further technical solution: It further includes two groups of positioning components symmetrically installed on the machine frame. The positioning component includes a slot plate, a plug-in plate, and a positioning plate. The two slot plates are symmetrically installed on both sides of the machine frame. The plug-in plate is slidably matched with a T-shaped slot opened on the slot plate. The two positioning plates are symmetrically installed on the plug-in plate, and the positioning plate abuts against the flange of the H-shaped steel in the composite material product.

[0021] Further technical solution: It further includes a make-up control system, and the make-up control system includes:

[0022] An information acquisition module for acquiring make-up torque information, the distance information between the nut and the screw head in the bolt assembly, the temperature information and the humidity information during make-up;

[0023] A make-up environment deviation coefficient acquisition module constructs a make-up environment deviation model based on the temperature information, humidity information, and standard pre-tightening force information during make-up, and imports the temperature information, humidity information, and standard pre-tightening force information into the make-up environment deviation model to output the make-up environment deviation coefficient. The make-up environment deviation model is expressed as:

[0024]

[0025] Among them, SP(T, H, NY) represents the make-up environment deviation coefficient, T represents the temperature information, H represents the humidity information, LX represents the standard pre-tightening force information, and α, β are weight coefficients;

[0026] A make-up torque adjustment module constructs a make-up torque adjustment model based on the make-up deviation coefficient and the preset make-up torque information, and imports the make-up deviation coefficient and the preset make-up torque information after dimensionless processing into the make-up torque adjustment model to output the make-up adjustment torque. The make-up torque adjustment model is expressed as:

[0027] NT(NS, SP(T, H, NY)) = NS(1 + SP(T, H, NY))

[0028] Among them, NT(NS, SP(T, H, NY)) represents the make-up adjustment torque, NS represents the preset make-up torque information, and SP(T, H, NY) represents the make-up environmental deviation coefficient;

[0029] The make-up quality evaluation module compares the acquired make-up torque information and distance information with the torque threshold (make-up adjustment torque) and distance threshold. If either of them is not within the corresponding threshold, the bolt assembly is continuously tightened until the make-up torque information exceeds the torque threshold and the distance information is within the distance threshold. In this state, the make-up torque information and distance information are non-dimensionalized and then imported into the pre-constructed make-up quality evaluation model to output the make-up quality evaluation coefficient. The acquired make-up quality evaluation coefficient is compared with the preset make-up quality evaluation coefficient threshold. If the make-up quality evaluation coefficient is not within the make-up quality evaluation coefficient threshold, the make-up torque information and distance information are adjusted until the make-up quality evaluation coefficient is within the make-up quality evaluation coefficient threshold. The make-up quality evaluation model is expressed as:

[0030]

[0031] Among them, SG(N, S, ) represents the make-up quality evaluation coefficient, N represents the make-up torque information, S represents the distance information, γ represents the influence factor of the make-up torque information, δ represents the influence factor of the distance information, and γ + δ = 1.

[0032] A composite material product is processed by combining and processing using the above-mentioned composite material product processing device based on the co-curing technology. It is characterized by including an H-shaped steel and a filling module, and the filling module is detachably installed between the flanges of the H-shaped steel through the H-shaped steel.

[0033] A design method for a composite material product based on the co-curing technology, applied to the composite material product described in the claims, includes:

[0034] Structure identification and sub-structure mold design, used to split the overall structure and determine the configuration of each sub-structure mold;

[0035] Full-process simulation of the overall mold assembly, used to solve the problems of connection of each sub-structure and disassembly and assembly of each mold combination;

[0036] Product structure design integrating the overall co-curing concept, used to solve the problem of optimizing the product structure based on the co-curing manufacturing concept;

[0037] Process-structure optimal solution evaluation is used to determine the optimal solution for product realization under the conditions of comprehensively considering the product's entire life cycle and process complexity;

[0038] Coordinated deformation analysis of the curing process of multiple molds is used to solve the problem of the influence of the deformation generated by multiple molds during the curing process on the forming quality and forming accuracy of the product.

[0039] The present invention provides a composite material product, a processing device and a design method based on co-curing technology, and has the following beneficial effects compared with the prior art:

[0040] 1. The present invention can start two motors A to drive the driving wheels A and B to perform rotational movements in opposite directions in the horizontal direction, and then drive the preliminarily bolt-connected composite material product to perform intermittent linear movements in the horizontal direction. During the movement interval of the composite material product, the displacement component drives the two chucks to be located on both sides of the nut and the screw head in the bolt component respectively. At this time, start the linear motion part C to drive the chuck to perform linear motion, so that a group of chucks perform relative motion, and then drive the two chucks to limit the nut and the screw head in the bolt component respectively. At this time, start the motor B to drive the rotating shaft C to rotate. The rotating shaft C drives the flat gear to drive the incomplete gear to drive the incomplete hexagonal turntable to rotate relative to the mounting plate. The incomplete hexagonal turntable drives the two chucks to rotate. At this time, the two chucks drive the nut and the screw head in the bolt component to perform rotational movements in opposite directions. And due to the action of the elastic member, the support frame A has a floating space in the horizontal direction. At this time, the screw head and the nut in the bolt component are buckled to achieve the technical effect of tightening and assembling the H-shaped steel in the composite material product and the filling module between the embedded wing plates by using the bolt component.

[0041] 2. After completing the buckling process of all bolt components on the composite material product, the present invention can start the pushing mechanism again to make the composite material product symmetrically located on the rack, and at this time, the platform of the driving wheel B located above is below. At this time, start the displacement component to make the two chucks in the buckling component located on both sides of both ends of the rotating shaft C. At this time, start the linear motion part C to drive the chuck to perform linear motion to clamp the rotating shaft C. At this time, start the linear motion part A to pull the hexagonal connecting block to retract into the rotating shaft B, so that the rotating shaft C is separated from the rotating shaft B. At this time, start the transfer component to drive the driving wheel B to move to the middle of the composite material product. At this time, the linear motion part B in the displacement component drives the driving wheel B to squeeze the composite material product and use the pressure sensor on the driving wheel B to monitor the thrust given by the driving wheel B to the composite material product in real time, so as to achieve the technical effect of detecting the load of the composite material product. Brief Description of the Drawings

[0042] Figure 1 It is a three-dimensional structure schematic diagram of the present invention.

[0043] Figure 2 This is a schematic diagram of the overall structure of the present invention.

[0044] Figure 3 This is a schematic diagram of the structure of the displacement component of the present invention.

[0045] Figure 4 This is a schematic diagram of the structure of the buckling component of the present invention.

[0046] Figure 5 This is a schematic diagram of the structure of the driving mechanism of the present invention.

[0047] Figure 6 This is a logic flowchart of the structure recognition and sub-structure mold design module.

[0048] Figure 7 This is a logic flowchart of the overall mold assembly full-process simulation module.

[0049] Figure 8 This is a logic flowchart of the process-structure optimal solution evaluation module

[0050] Figure 9 This is a logic flowchart of the module multi-mold curing process collaborative deformation analysis module.

[0051] Figure 10 This is the design process of the process-structure integrated design system of the composite material product based on the overall co-curing technology.

[0052] Annotation of reference numerals in the drawings: 1, frame; 2, driving mechanism; 201, driving wheel A; 202, driving wheel B; 203, rotating shaft A; 204, bearing component; 2041, rotating shaft B; 2042, hexagonal connecting block; 2043, linear moving part A; 205, rotating shaft C; 206, motor A; 3, buckling mechanism; 301, support frame A; 302, displacement component; 3021, electric slide A; 3022, guide rod A; 3023, support frame B; 3024, electric slide B; 3025, guide rod B; 3026, linear moving part B; 303, buckling component; 3,031, mounting disc; 3032, guide rod C; 3033, incomplete hexagonal turntable; 3034, spur gear; 3035, rotating shaft C; 3036, chuck; 4, H-shaped steel; 5, filling module; 6, positioning component; 601, slot plate; 602, plug-in plate; 603, positioning plate. Detailed implementation manners

[0053] In order to make the objectives, technical solutions and advantages of the present invention more clear and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0054] The following describes in detail the specific implementation of the present invention in conjunction with specific embodiments.

[0055] Please refer to Figures 1 to 5 , which is a processing device for composite material products based on co-curing technology provided by an embodiment of the present invention, including a frame 1, and further including:

[0056] The pushing mechanism, with two groups symmetrically installed on the frame 1, is used to linearly push the composite material products that are initially bolt-connected;

[0057] The buckling mechanism 3 is installed on the frame 1 and is used to perform buckling processing on the bolt assemblies in the composite material products that are initially bolt-connected;

[0058] The pushing mechanism includes a pushing wheel A201, a pushing wheel B202, and a rotating shaft A203. The pushing wheel A201 and the pushing wheel B202 are symmetrically arranged on the upper and lower sides of the composite material product. The pushing wheel A201 is fixedly connected to the rotating shaft A203 rotatably connected to the frame 1. A rotating shaft C205 is fixedly connected to the pushing wheel B202. It further includes:

[0059] The bearing assembly 204 is installed on the frame 1 and is used to bear the rotating shaft C205;

[0060] Among them, the bearing assembly 204 includes a rotating shaft B2041, a hexagonal connection block 2042, and a linear motion part A2043. The two rotating shafts B2041 are symmetrically and rotatably installed on the frame 1. The rotating shaft B2041 is embedded in an installation groove (not marked in the figure) opened on the rotating shaft B2041. A hexagonal connection block 2042 is fixedly connected to the output shaft of the rotating shaft B2041. The hexagonal connection block 2042 is slidably matched with a hexagonal slot (not marked in the figure) opened on the rotating shaft C205. Motors A206 detachably connected to the frame 1 are connected to both the rotating shaft A203 and one of the rotating shafts B2041. Platforms (not marked in the figure) are opened on the pushing wheel A201 and the pushing wheel B202. A pressure sensor (not marked in the figure) is embedded in the platform. A pressure-bearing plate (not marked in the figure) is fixedly connected to the pressure sensor. When the linear motion part A2043 is started to push the hexagonal connection block 2042 into the rotating shaft C205, at this time, the two motors A206 are started to push the pushing wheel A201 and the pushing wheel B202 to perform rotational movements in opposite directions in the horizontal direction, thereby pushing the initially bolt-connected composite material products to perform intermittent linear movements in the horizontal direction.

[0061] Please refer to Figures 1 to 4 , the buckling mechanism 3 includes two support frames A301, and further includes:

[0062] The displacement component 302 is installed on the frame 1 and is used to push the support frame A301 to perform linear motion in the horizontal or vertical direction;

[0063] The buckling component 303 is correspondingly installed on two support frames A301 and is used to perform buckling treatment on the bolt component;

[0064] The buckling component 303 includes a mounting disk 3031, a guide rod C3032, an incomplete hexagonal turntable 3033, a spur gear 3034, a rotating shaft C3035, and a chuck 3036. The mounting disk 3031 is in sliding fit with the guide rod C3032 fixedly connected to the support frame A301. Elastic members (not marked in the figure) are symmetrically installed on the mounting disk 3031. The elastic members are sleeved on the guide rod C3032 and their two ends are fixedly connected to the mounting disk 3031 and the support frame A301 respectively. The incomplete hexagonal turntable 3033 is rotatably installed on the mounting disk 3031. Two rotating shafts C3035 are symmetrically and rotatably installed on the mounting disk 3031. A spur gear 3034 meshing with an incomplete gear (not marked in the figure) fixedly connected to the incomplete hexagonal turntable 3033 is fixedly connected to the rotating shaft C3035. The rotating shaft C3035 is fixedly connected to the output shaft of the motor B embedded in the mounting disk 3031. Two linear motion members C (not marked in the figure) are symmetrically embedded in the incomplete hexagonal turntable 3033. The chuck 3036 is fixedly connected to the output shaft of the linear motion member C. The linear motion member C pushes the chuck 3036 to perform linear motion, prompting a set of chucks 3036 to perform relative motion, and further prompting the two groups of chucks 3036 to limit the nut and the screw head in the bolt component respectively. At this time, the motor B is started to drive the rotating shaft C3035 to rotate. The rotating shaft C3035 drives the spur gear 3034 to push the incomplete gear to drive the incomplete hexagonal turntable 3033 to rotate relative to the mounting disk 3031. The incomplete hexagonal turntable 3033 drives the two chucks 3036 to rotate. At this time, the two groups of chucks 3036 push the nut and the screw head in the bolt component to perform rotational motion in opposite directions. And due to the action of the elastic member, the support frame A301 has a floating space in the horizontal direction. At this time, the screw head and the nut in the bolt component are buckled to achieve the technical effect of tightening and assembling the H-shaped steel and the filling module between the embedded wing plates in the composite material product by using the bolt component.

[0065] Please refer to Figures 1 to 3, the displacement assembly 302 includes an electric slide table A3021, a guide rod A3022, a support frame B3023, an electric slide table B3024, a guide rod B3025, and a linear motion member B3026. The guide rod A3022 fixedly connected to the upper part of the frame 1 penetrates through the electric slide table A3021. The upper end of the electric slide table A3021 contacts the inner side of the upper end of the frame 1. A support frame B3023 is fixedly connected to the lower end of the electric slide table A3021. A guide rod B3025 penetrating through the electric slide table B3024 is fixedly connected to the support frame B3023. A linear motion member B3026 with an output shaft fixedly connected to the upper end of the support frame A301 is fixedly connected to the lower end of the electric slide table B3024. The purpose of this setting is to adjust the position of the support frame A301 in the vertical plane by using the electric slide table A3021, the electric slide table B3024, and the linear motion member B3026 in cooperation.

[0066] Preferably, the circumferences of the arc surfaces on the driving wheel A201 and the driving wheel B202 are equal to the distance between two screw holes on the composite material product. The purpose of this setting is to ensure that the distance the composite material product is pushed after the driving wheel A201 and the driving wheel B202 rotate one circle is equal to the distance between the two screw holes.

[0067] Please refer to Figure 1 and Figure 2 , and further includes two groups of positioning assemblies 6 symmetrically installed on the frame 1. The positioning assembly 6 includes a slot plate 601, a plug-in plate 602, and a positioning plate 603. The two slot plates 601 are symmetrically installed on both sides of the frame 1. The plug-in plate 602 is slidably matched with a T-shaped slot (not marked in the figure) opened on the slot plate 601. The two positioning plates 603 are symmetrically installed on the plug-in plate 602. The positioning plate 603 abuts against the flange of the H-shaped steel in the composite material product. The purpose of this setting is to position the composite material product to prevent it from shifting during linear motion.

[0068] In an embodiment of the present invention, two motors A206 are started to drive the driving wheels A201 and the driving wheel B202 to perform rotational motions in opposite directions in the horizontal direction, thereby driving the preliminarily bolt-connected composite material product to perform intermittent linear motion in the horizontal direction. During the motion interval of the composite material product, the displacement assembly 302 drives two sets of chucks 3036 to be respectively located on both sides of the nut and the screw head in the bolt assembly. At this time, the linear motion member C is started to drive the chuck 3036 to perform linear motion, prompting a set of chucks 3036 to perform relative motion, and further prompting the two sets of chucks 3036 to limit the nut and the screw head in the bolt assembly respectively. At this time, the motor B is started to drive the rotating shaft C3035 to rotate, and the rotating shaft C3035 drives the spur gear 3034 to push the incomplete gear to drive the incomplete hexagonal turntable 3033 to rotate relative to the mounting plate 3031. The incomplete hexagonal turntable 3033 drives the two chucks 3036 to rotate. At this time, the two sets of chucks 3036 drive the nut and the screw head in the bolt assembly to perform rotational motions in opposite directions. And due to the action of the elastic member, the support frame A301 has a floating space in the horizontal direction. At this time, the screw head and the nut in the bolt assembly are buckled to achieve the technical effect of tightening and assembling the H-shaped steel in the composite material product and the filling module between the embedded wing plates by using the bolt assembly. After repeating the above operations and completing the buckling process of all the bolt assemblies on the composite material product, the pushing mechanism is started again to make the composite material product symmetrically located on the frame 1, and at this time, the platform of the driving wheel B202 located above is below. At this time, the displacement assembly 302 is started to make the two sets of chucks 3036 in the buckling assembly 303 located on both sides of the two ends of the rotating shaft C205. At this time, the linear motion member C is started to drive the chuck 3036 to perform linear motion to clamp the rotating shaft C205. At this time, the linear motion member A2043 is started to pull the hexagonal connecting block 2042 to retract into the rotating shaft B2041, prompting the rotating shaft C205 to separate from the rotating shaft B2041. At this time, the transfer assembly is started to drive the driving wheel B202 to displace to the middle of the composite material product. At this time, the linear motion member B3026 in the displacement assembly 302 pushes the driving wheel B202 to squeeze the composite material product and uses the pressure sensor located on the driving wheel B202 to monitor the thrust given by the driving wheel B202 to the composite material product in real time, so as to achieve the technical effect of detecting the load of the composite material product.

[0069] Please refer to Figures 1 to 3 , as an embodiment of the present invention, it further includes a buckling control system, and the buckling control system includes:

[0070] An information acquisition module, which is used to acquire the buckling torque information, the distance information between the nut and the screw head in the bolt assembly, the temperature information and the humidity information during buckling;

[0071] The make-up environment deviation coefficient acquisition module constructs a make-up environment deviation model based on the temperature information, humidity information, and standard pre-tightening force information during make-up, and imports the temperature information, humidity information, and standard pre-tightening force information into the make-up environment deviation model to output the make-up environment deviation coefficient. The make-up environment deviation model is expressed as:

[0072]

[0073] Among them, SP(T, H, NY) represents the make-up environment deviation coefficient, T represents the temperature information, H represents the humidity information, LX represents the standard pre-tightening force information, and α, β are weight coefficients;

[0074] The make-up torque adjustment module constructs a make-up torque adjustment model based on the make-up deviation coefficient and the preset make-up torque information, and imports the make-up deviation coefficient and the preset make-up torque information after dimensionless processing into the make-up torque adjustment model to output the make-up adjusted torque. The make-up torque adjustment model is expressed as:

[0075] NT(NS, SP(T, H, NY)) = NS(1 + SP(T, H, NY))

[0076] Among them, NT(NS, SP(T, H, NY)) represents the make-up adjusted torque, NS represents the preset make-up torque information, and SP(T, H, NY) represents the make-up environment deviation coefficient;

[0077] The make-up quality evaluation module compares the acquired make-up torque information and distance information with the torque threshold (make-up adjusted torque) and distance threshold. If either of them is not within the corresponding threshold, the bolt assembly is continuously made up until the make-up torque information exceeds the torque threshold and the distance information is within the distance threshold. In this state, the make-up torque information and distance information are dimensionless processed and then imported into the pre-constructed make-up quality evaluation model to output the make-up quality evaluation coefficient. The make-up quality evaluation coefficient is compared with the preset make-up quality evaluation coefficient threshold. If the make-up quality evaluation coefficient is not within the make-up quality evaluation coefficient threshold, the make-up torque information and distance information are adjusted until the make-up quality evaluation coefficient is within the make-up quality evaluation coefficient threshold. The make-up quality evaluation model is expressed as:

[0078]

[0079] Among them, SG(N, S, ) represents the make-up quality evaluation coefficient, N represents the make-up torque information, S represents the distance information, γ represents the influence factor of the make-up torque information, δ represents the influence factor of the distance information, and γ + δ = 1.

[0080] Preferably, the temperature information is the ratio between the difference between the current temperature value and the make-up standard temperature value and the make-up standard temperature value, and the make-up standard humidity value is the average value of the temperatures of the best use environment given by the bolt assembly manufacturer.

[0081] Preferably, the humidity information is the ratio between the difference between the current humidity and the make-up standard humidity value and the make-up standard humidity value, and the make-up standard humidity value is the average value of the humidities of the best use environment given by the bolt assembly manufacturer.

[0082] A composite material product includes an H-shaped steel 4 and a filling module 5, and the filling module 5 is detachably installed between the flange plates of the H-shaped steel 4 through the H-shaped steel 4.

[0083] For composite material products with complex structures, based on the concept of integral co-curing manufacturing, a process-structure integrated design is carried out on the products, aiming to design and manufacture the optimal structure of composite material products that meet the service condition requirements. For this purpose, the project established a design method for composite material products based on co-curing technology, which includes five major modules: "structural identification and sub-structure mold design", "overall mold assembly full-process simulation", "product structure design integrating the concept of integral co-curing", "evaluation of the optimal process-structure plan", and "coordinated deformation analysis of the curing process of multiple molds". The main technical features of each module are as follows:

[0084] Structural identification and sub-structure mold design module. This module mainly solves the problems of splitting the overall structure and determining the configurations of the sub-structure molds. According to the structural characteristics of the product, based on the principle of "classified identification - overall structure - operability", the product structure is split. "Classified identification" means clarifying each part of the product such as rib plates, stiffeners, beams, through holes, and the main structure; "overall structure" means ensuring the integrity of the structure as much as possible under the premise of feasible mold design to avoid overlap during the laying process; "operability" means determining that the molds of each sub-structure are convenient for production operations. Thus, the preliminary design of each sub-structure mold is completed. As Figure 6 is the logic flow chart of the structural identification and sub-structure mold design module.

[0085] Overall mold assembly full-process simulation module. This module mainly solves the problems of the connection of each sub-structure and the disassembly and assembly of each mold combination. Based on the configurations of the sub-structure molds determined in "Module a", the overall mold combination and disassembly process are simulated to determine the connection methods of each part of the mold, whether there is interference during the mold combination, and the sequence of demolding, and clarify the pressurization methods at the connection parts of each sub-structure. On this basis, the feasibility of the plan for integrally co-curing and forming all / part of the sub-structures split in "Module a" is evaluated. Thus, the overall mold design of the co-cured product is completed. As Figure 7 is the logic flow chart of the overall mold assembly full-process simulation module.

[0086] Product structure design module integrating the concept of overall co-curing. This module mainly solves the problem of optimizing the design of product structure based on the co-curing manufacturing concept. In "Module b", the sub-structures that can be co-cured are determined. Therefore, this part of the structure can be designed as a whole, such as removing the connecting parts and standard parts between sub-structures, optimizing the finite element model for strength / stiffness analysis (the finite element model of this part is regarded as a whole, and the connection interface no longer appears), etc., and the ply design is carried out under this condition. In addition, for the sub-structures in "Module b" that cannot be co-cured, according to the finite element analysis results and the functional requirements of the product, this part of the structure can be redesigned, and the co-curing forming scheme analysis is carried out again based on "Module a" and "Module b". Thus, by integrating the concept of completing the manufacturing of composite products with overall co-curing technology as much as possible, the integrated design of product process-structure is realized.

[0087] Process-structure optimal solution evaluation module. This module mainly determines the optimal solution for product realization under the conditions of comprehensively considering the product's entire life cycle and process complexity. Based on the analysis of "Module a, b, c", several design solutions and corresponding process solutions for the product may be obtained based on the concept of overall co-curing on the premise of meeting the design requirements of the product. Analyze each process solution, comprehensively consider various factors such as "product structure weight", "mold manufacturing cost", "ply laying difficulty", "manufacturing cycle", "disassembly and assembly risk of combined molds", "convenience of product maintenance", etc., determine the weight coefficients of each influencing factor in the economic factor according to different product requirements, compare the economic factors of each process solution, and finally determine the optimal solution for product realization that meets the product's use requirements. Such as Figure 8 is the logic flowchart of the process-structure optimal solution evaluation module.

[0088] Multi-mold co-curing process collaborative deformation analysis module. This module mainly solves the problem of the influence of the deformation of multiple molds during the co-curing process on the forming quality and forming accuracy of the product. Based on the process solution determined in "Module d", analyze the deformation process of the co-curing combined molds affected by temperature during the co-curing process, design the cooperative process gap between the "soft mold" and the "hard mold", analyze the influence of the ply thickness between adjacent molds on the forming quality according to the process test and simulation results, and finally determine the overall co-curing process solution in combination with the analysis results. Such as Figure 9 is the logic flowchart of the multi-mold co-curing process collaborative deformation analysis module.

[0089] Many existing composite material products use the co-curing molding method. However, for the co-curing design of products with complex structures, many aspects need to be considered, resulting in a large workload. On the other hand, different products require different design methods, making it difficult to form a systematic design concept. At this time, the process-structure integrated design system for composite material products based on the overall co-curing technology not only maintains the advantages of co-curing molding, such as high-temperature stability, excellent mechanical properties, good heat insulation performance, high strength, and low mass. It also considers the classification and identification of structures during actual manufacturing to ensure structural integrity; the mold is easy to generate and operate, as well as mold interference, demolding, and the feasibility of the plan; the optimization of the product structure; the optimal solution for product realization under the comprehensive consideration of the product's entire life cycle and process complexity; the impact on molding quality, etc. This design system not only improves productivity, quality, accuracy, and efficiency but also considers the saving of raw materials and processes, as well as the simplicity of processing, operation, and use. For example Figure 10 is the design flow of the process-structure integrated design system for composite material products based on the overall co-curing technology.

[0090] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusively, so that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0091] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A composite material product processing device based on co-curing technology, comprising a frame (1), characterized in that, It also includes: Two sets of pushing mechanisms, symmetrically installed on the frame (1), for linearly pushing the composite material products with preliminary bolt connections; A buckling mechanism (3), installed on the frame (1), for buckling the bolt assemblies in the composite material products with preliminary bolt connections; The pushing mechanism includes a pushing wheel A (201), a pushing wheel B (202) and a rotating shaft A (203). The pushing wheel A (201) and the pushing wheel B (202) are symmetrically arranged on the upper and lower sides of the composite material product. The pushing wheel A (201) is fixedly connected to the rotating shaft A (203) rotatably connected to the frame (1). A rotating shaft C (205) is fixedly connected to the pushing wheel B (202). It also includes: A bearing assembly (204), installed on the frame (1), for bearing the rotating shaft C (205).

2. The composite material product processing device based on the co-curing technology according to claim 1, wherein The bearing assembly (204) includes a rotating shaft B (2041), a hexagonal connecting block (2042) and a linear motion part A (2043). The two rotating shafts B (2041) are symmetrically and rotatably installed on the frame (1). The rotating shaft B (2041) is embedded in the installation groove formed on the rotating shaft B (2041). A hexagonal connecting block (2042) is fixedly connected to the output shaft of the rotating shaft B (2041). The hexagonal connecting block (2042) is slidably matched with the hexagonal slot formed on the rotating shaft C (205). A motor A (206) detachably connected to the frame (1) is connected to both the rotating shaft A (203) and one of the rotating shafts B (2041). Platforms are provided on the pushing wheel A (201) and the pushing wheel B (202).

3. The composite material product processing device based on the co-curing technology according to claim 1, characterized in that, The buckling mechanism (3) includes two support frames A (301), and it also includes: A displacement assembly (302), installed on the frame (1), for pushing the support frame A (301) to perform linear motion in the horizontal or vertical direction; A buckling assembly (303), correspondingly installed on the two support frames A (301), for buckling the bolt assemblies; The make-up assembly (303) includes a mounting disc (3031), a guide rod C (3032), an incomplete hexagonal turntable (3033), a spur gear (3034), a rotating shaft C (3035), and a chuck (3036). The mounting disc (3031) is in sliding fit with the guide rod C (3032) fixedly connected to the support frame A (301). Elastic members are symmetrically mounted on the mounting disc (3031). The elastic members are sleeved on the guide rod C (3032) and their two ends are fixedly connected to the mounting disc (3031) and the support frame A (301). The incomplete hexagonal turntable (3033) is rotatably mounted on the mounting disc (3031). Two rotating shafts C (3035) are symmetrically and rotatably mounted on the mounting disc (3031). A spur gear (3034) fixedly connected to the rotating shaft C (3035) is meshed with an incomplete gear fixedly connected to the incomplete hexagonal turntable (3033). The rotating shaft C (3035) is fixedly connected to the output shaft of a motor B embedded in the mounting disc (3031). Two linear motion members C are symmetrically embedded in the incomplete hexagonal turntable (3033). The chuck (3036) is fixedly connected to the output shaft of the linear motion member C.

4. The composite material product processing device based on the co-curing technology according to claim 3, characterized in that, The displacement assembly (302) includes an electric slide A (3021), a guide rod A (3022), a support frame B (3023), an electric slide B (3024), a guide rod B (3025), and a linear motion member B (3026). The guide rod A (3022) fixedly connected to the upper part of the frame (1) penetrates through the electric slide A (3021). The upper end of the electric slide A (3021) is in contact with the inner side of the upper end of the frame (1). A support frame B (3023) is fixedly connected to the lower end of the electric slide A (3021). A guide rod B (3025) fixedly connected to the support frame B (3023) penetrates through the electric slide B (3024). The lower end of the electric slide B (3024) is fixedly connected to a linear motion member B (3026) whose output shaft is fixedly connected to the upper end of the support frame A (301).

5. The composite material product processing device based on co-curing technology according to claim 4, characterized in that: A pressure sensor is embedded in the platform, and a pressure-resistant plate is fixedly connected to the pressure sensor.

6. The composite material product processing device based on the co-curing technology according to claim 4, characterized in that, The circumferences of the arc surfaces on the driving wheel A (201) and the driving wheel B (202) are equal to the distance between two screw holes on the composite material product.

7. The composite material product processing device based on the co-curing technology according to claim 1, characterized in that, It further includes two groups of positioning assemblies (6) symmetrically mounted on the frame (1). The positioning assembly (6) includes a slot plate (601), a plug-in plate (602), and a positioning plate (603). Two slot plates (601) are symmetrically mounted on both sides of the frame (1). The plug-in plate (602) is in sliding fit with a T-shaped slot formed in the slot plate (601). Two positioning plates (603) are symmetrically mounted on the plug-in plate (602). The positioning plate (603) abuts against the flange of the H-shaped steel in the composite material product.

8. The composite material product processing device based on co-curing technology according to claim 1, characterized in that: It further includes a make-up control system, and the make-up control system includes: An information acquisition module for acquiring make-up torque information, the distance information between the nut and the bolt head in the bolt assembly, the temperature information during make-up, and the humidity information; A make-up environment deviation coefficient acquisition module constructs a make-up environment deviation model based on the temperature information, humidity information, and standard pre-tightening force information during make-up, and imports the temperature information, humidity information, and standard pre-tightening force information into the make-up environment deviation model to output the make-up environment deviation coefficient. The make-up environment deviation model is expressed as: Wherein, SP(T, H, NY) represents the make-up environment deviation coefficient, T represents the temperature information, H represents the humidity information, LX represents the standard pre-tightening force information, and α and β are weight coefficients; A make-up torque adjustment module constructs a make-up torque adjustment model based on the make-up deviation coefficient and the preset make-up torque information, and imports the make-up deviation coefficient and the preset make-up torque information after dimensionless processing into the make-up torque adjustment model to output the make-up adjustment torque. The make-up torque adjustment model is expressed as: NT(NS, SP(T, H, NY)) = NS(1 + SP(T, H, NY)) Wherein, NT(NS, SP(T, H, NY)) represents the make-up adjustment torque, NS represents the preset make-up torque information, and SP(T, H, NY) represents the make-up environment deviation coefficient; A make-up quality evaluation module compares the acquired make-up torque information and distance information with the torque threshold and the distance threshold. The torque threshold is the make-up adjustment torque. If either of them is not within the corresponding threshold, the bolt assembly is continuously made up until the make-up torque information exceeds the torque threshold and the distance information is within the distance threshold. In this state, the make-up torque information and distance information are dimensionless processed and then imported into the pre-constructed make-up quality evaluation model to output the make-up quality evaluation coefficient. The acquired make-up quality evaluation coefficient is compared with the preset make-up quality evaluation coefficient threshold. If the make-up quality evaluation coefficient is not within the make-up quality evaluation coefficient threshold, the make-up torque information and distance information are adjusted until the make-up quality evaluation coefficient is within the make-up quality evaluation coefficient threshold. The make-up quality evaluation model is expressed as: Wherein, SG(N, S,) represents the make-up quality evaluation coefficient, N represents the make-up torque information, S represents the distance information, γ represents the influence factor of the make-up torque information, δ represents the influence factor of the distance information, and γ + δ = 1.

9. A composite material product is processed by combining and processing using the composite material product processing device based on co-curing technology according to any one of claims 1-8, characterized in that, It includes an H-shaped steel (4) and a filling module (5). The filling module (5) is detachably installed between the flange plates of the H-shaped steel (4).

10. A design method for a composite material product based on co-curing technology, applied to the composite material product described in claim 9, characterized in that, It includes: Structure identification and sub-structure die design for splitting the overall structure and determining the configuration of each sub-structure die; Full-process simulation of overall die assembly for solving the problems of connection of each sub-structure and disassembly and assembly of each die combination; Product structure design integrating the concept of overall co-curing for solving the problem of optimizing the product structure based on the co-curing manufacturing concept; Process-structure optimal solution evaluation for determining the optimal solution for product realization under the condition of comprehensively considering the product full life cycle and process complexity; Coordinated deformation analysis of the curing process for multiple molds, which is used to solve the problem of the influence of the deformation generated by multiple molds during the curing process on the forming quality and forming accuracy of products.

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