CN103413004A - Three-dimensional assembly process generation method and system for aerospace product - Google Patents

Abstract

The invention provides a method and system for generating a three-dimensional assembly process for aerospace products. The system includes: a three-dimensional manufacturing resource library building module to construct a three-dimensional manufacturing resource library containing information on products, tooling, tools and auxiliary materials; three-dimensional assembly process design The module, based on the constructed 3D manufacturing resource library, performs process task decomposition and process compilation to form a process structure tree; the 3D assembly process simulation module builds a virtual assembly environment, simulates and analyzes the assembly process based on the 3D model, assembly process and process structure tree, Form a 3D assembly animation that matches the actual assembly requirements; the 3D assembly process publishing module integrates process design information and simulation information to form a 3D assembly process file and release it to the assembly site. The invention provides an accurate and intuitive three-dimensional visualization means for assembly of aerospace products, and can solve the problem of information gap between three-dimensional product design, three-dimensional process design and on-site implementation of three-dimensional assembly in the prior art.

Description

Three-dimensional assembly process generation method and system for aerospace products

technical field

The invention relates to the technical field of aerospace, in particular to the technical field of assembly control of aerospace products, specifically a method and system for generating a three-dimensional assembly process for aerospace products.

Background technique

At present, in the process of designing and manufacturing aerospace products, it is common for the design process to be in different places. Designers mainly use 3D models, drawings and design documents to transmit design information. Among them, the drawings and design documents are used as standard data for craftsmen, and the 3D model is only used as a reference for craft design. Drawings include information such as product component composition, installation dimensions, and benchmarks; design documents include information such as installation methods for some components, installation precautions, notices, and change orders. Both drawings and design documents transmit design information in the form of analog quantities. The two-dimensional process specifications generated in this way mainly have the following shortcomings in the manufacturing process of aerospace products;

1. Craftsmen cannot make full use of the received design data. The 3D model is only used as a reference for process design and is not directly used for process design, resulting in an information gap between the process and design. The preparation of the process mainly relies on the experience of the craftsmen, resulting in Manufacturing over-reliance on the experience of craftsmen.

2. The two-dimensional process specification uses paper to describe the process content. The process documents lack intuition and poor readability. The on-site assembly personnel need to digest and absorb the process documents with the help of a large number of drawings and experience. The understanding of the process documents is largely Therefore, there is an information gap between the process design and the site, causing the job site to rely too much on the experience and skills of the workers, and the process documents are poorly instructive for new employees.

3. The means of verification of process documents are backward. The feasibility and rationality of the assembly process can only be verified by means of physical trial assembly. Technicians cannot find specific problems such as tooling tool interference, operating space, and accessibility before assembly. Various problems that require coordination often occur, resulting in assembly Problems such as low efficiency, unstable quality, long assembly cycle, and high assembly cost.

4. During the manufacturing process of aerospace products, a series of changes often occur due to reasons such as design and process. Changes are managed in the form of notices and change orders, which require re-drawing and printing, which consumes a lot of labor and paper. In addition, there are many paper drawings and process documents in the assembly environment of aerospace products, which are prone to damage and loss, which is not conducive to the paperless construction of the workshop.

5. The management process of two-dimensional process documents is complicated. Every time you borrow it, you need to go to the archives office for filing and borrowing, and return the documents according to the specified time and process. The management process has a lot of time and manpower waste, which reduces the management efficiency of process documents.

It can be seen from the above that how to solve the above problems caused by the information gap between process design and on-site construction has become an urgent problem to be solved by those skilled in the art.

Contents of the invention

In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a method and system for generating a three-dimensional assembly process for aerospace products, which is used to solve the problem of three-dimensional product design, three-dimensional process design and on-site implementation of three-dimensional assembly in the prior art. information gap problem.

In order to achieve the above purpose and other related purposes, the present invention provides, on the one hand, a method for generating a three-dimensional assembly process for aerospace products, the method comprising: step S1, constructing a three-dimensional manufacturing resource including information on products, tooling, tools and auxiliary materials library; step S2, process task decomposition and process compilation according to the constructed 3D manufacturing resource library, and form a process structure tree; step S3, construct a virtual assembly environment, simulate and analyze the assembly process according to the 3D model, assembly process and process structure tree, Form a 3D assembly animation that matches the actual assembly requirements; step S4, integrate process design information and simulation information, form a 3D assembly process file, and publish it to the assembly site.

As a preferred solution of the present invention, the step S1 specifically includes: S11, using a three-dimensional design software to establish a three-dimensional model of a product and tooling that meets the process requirements, and the three-dimensional model includes a product model, tooling tool model and auxiliary material model; S12, performing MBD annotation on the 3D model to form an MBD-based 3D model definition; S13, performing model format conversion on the 3D model after annotation, converting it into a lightweight product model, tooling tool model and auxiliary material model, forming a model that includes 3D manufacturing resource library of products, tooling, tools and accessories information.

As a preferred solution of the present invention, the definition of the 3D model of the MBD is to add manufacturing information and non-geometric information of the product on the basis of the 3D model, including product structure, technical requirements, process, inspection and management.

As a preferred solution of the present invention, the light weight is to remove engineering information irrelevant to assembly in the 3D model, and retain the benchmark information, PMI information and MBD annotation information of the 3D model during format conversion.

As a preferred solution of the present invention, the step S2 specifically includes: S21, using the product model to edit product attribute information; S22, assigning different products and resources to each process, and realizing the allocation of three-dimensional data for each station; S23 , according to the serial and parallel relationship of the assembly process, plan the process flow, form a process structure tree, and realize the conversion from EBOM to PBOM; S24, add operation content and methods, precision and quality requirements for each process and process step, until all processes , Work step content preparation is completed.

As a preferred solution of the present invention, the attribute information of the three-dimensional model includes parts code, name, type, quantity, specification, source and workshop.

As a preferred solution of the present invention, the step S3 specifically includes: S31, referring to the layout of the assembly site, constructing a virtual assembly simulation environment; S32, marking the corresponding attributes and process information in the three-dimensional model according to the requirements of the assembly process or process , add virtual assembly and action to each component in the 3D model to form a 3D assembly animation; S33, analyze the simulation process data in the 3D assembly animation according to the assembly process description, obtain the problematic process or process, optimize and improve process until the 3D assembly animation matches the actual assembly requirements.

As a preferred solution of the present invention, in the step S4, the integrated 3D assembly process file is converted into HTML format, and then the converted 3D assembly process file in HTML format is released to the assembly site.

As a preferred solution of the present invention, the three-dimensional assembly process file includes a process search file, supporting detailed statistics file and on-site operation instruction file.

In another aspect, the present invention provides a three-dimensional assembly process generation system for aerospace products. The system includes: a three-dimensional manufacturing resource library building module, which is used to build a three-dimensional manufacturing resource library including product, tooling, tool and auxiliary material information; The three-dimensional assembly process design module is connected with the construction module of the three-dimensional manufacturing resource library, and performs process task decomposition and process preparation according to the constructed three-dimensional manufacturing resource library to form a process structure tree; the three-dimensional assembly process simulation module is connected with the three-dimensional manufacturing resource library The construction module is connected with the 3D assembly process design module to construct a virtual assembly environment, and according to the 3D model, assembly process and process structure tree, simulate and analyze the assembly process to form a 3D assembly animation that matches the actual assembly requirements; 3D assembly process The release module is connected with the 3D assembly process simulation module, integrates process design information and simulation information, forms a 3D assembly process file, and publishes it to the assembly site.

As a preferred solution of the present invention, the construction module of the three-dimensional manufacturing resource library includes: a modeling unit, which establishes a three-dimensional model of a product and a tooling that meets the process requirements through a three-dimensional design software, and the three-dimensional model includes a product model, a tooling tool model and an auxiliary material model; a labeling unit, connected with the modeling unit, carries out MBD labeling on the three-dimensional model, forming a three-dimensional model definition based on MBD; a format conversion unit, connected with the labeling unit, and annotating the three-dimensional model Carry out model format conversion, transform into lightweight product models, tooling tool models and auxiliary material models, and form a 3D manufacturing resource library containing information on products, tooling, tools and auxiliary materials.

As a preferred solution of the present invention, the three-dimensional assembly process design module includes: a product attribute editing unit, which uses the product model to edit product attribute information; an allocation unit, which is connected to the product attribute editing unit, and assigns different Products and resources, realize the distribution of three-dimensional data of each station; process structure tree forming unit, connected with the distribution unit, plan the process flow according to the serial and parallel relationship of the assembly process, form a process structure tree, and realize EBOM to PBOM conversion; the content editing unit is connected with the process structure tree forming unit, and adds operation content and methods, precision and quality requirements for each process and process step until the content of all processes and process steps is compiled.

As a preferred solution of the present invention, the three-dimensional assembly process simulation module includes: a simulation environment simulation construction unit, which constructs a virtual assembly simulation environment with reference to the layout of the assembly site; a three-dimensional assembly animation formation unit, connected to the simulation environment simulation construction unit , according to the requirements of the assembly process or process, mark the corresponding attributes and process information in the 3D model, add virtual assembly and action to each component in the 3D model, and form a 3D assembly animation; analyze and optimize the unit, and the 3D assembly The animation forming units are connected, and according to the assembly process description, the simulation process data in the 3D assembly animation is analyzed to obtain the problematic process or process, and optimize and improve the process until the 3D assembly animation matches the actual assembly requirements.

As a preferred solution of the present invention, the three-dimensional assembly process release module includes: an information integration unit that integrates process design information and simulation information to form a three-dimensional assembly process file; a file conversion unit that is connected to the information integration unit and integrates The 3D assembly process file is converted into HTML format; the file release unit is connected with the file conversion unit, and releases the converted 3D assembly process file in HTML format to the assembly site.

As a preferred solution of the present invention, the three-dimensional assembly process file includes a process search file, supporting detailed statistics file and on-site operation instruction file.

As mentioned above, a method and system for generating a three-dimensional assembly process for aerospace products according to the present invention has the following beneficial effects:

1. On the basis of traditional two-dimensional assembly process regulations, the present invention uses digital technology and information technology to transmit the information required for on-site production through three-dimensional models and three-dimensional processes, providing an accurate and intuitive assembly process for aerospace products. means of visualization. Therefore, the present invention can solve the problem of information gap between process design and field construction in the prior art.

2. The present invention can also comprehensively and intuitively express production information and realize the paperless construction of aerospace product assembly workshops, which is conducive to further improving the informatization level of assembly workshops, shortening the assembly cycle of aerospace products, and reducing production costs.

Description of drawings

Fig. 1 shows a schematic flow chart of the method for generating a three-dimensional assembly process for aerospace products in the present invention.

FIG. 2 is a flow chart of step S1 in the method for generating a three-dimensional assembly process for aerospace products in the present invention.

FIG. 3 is a flowchart of step S2 in the method for generating a three-dimensional assembly process for aerospace products in the present invention.

Fig. 4 is a schematic diagram of a process structure tree in the method for generating a three-dimensional assembly process for aerospace products in the present invention.

FIG. 5 is a flow chart of step S3 in the method for generating a three-dimensional assembly process for aerospace products in the present invention.

Fig. 6 is a schematic structural diagram of a three-dimensional assembly process generation system for aerospace products in the present invention.

Fig. 7 is a schematic structural diagram of the building blocks of the 3D manufacturing resource library in the 3D assembly process generation system for aerospace products in the present invention.

Fig. 8 is a schematic structural diagram of a three-dimensional assembly process design module in the three-dimensional assembly process generation system for aerospace products in the present invention.

FIG. 9 is a schematic structural diagram of a three-dimensional assembly process simulation module in the three-dimensional assembly process generation system for aerospace products in the present invention.

Fig. 10 is a schematic structural diagram of the 3D assembly process release module in the 3D assembly process generation system for aerospace products in the present invention.

Component designation description

1 3D assembly process generation system

11 3D manufacturing resource library building blocks

111 Modeling unit

112 Annotation unit

113 format conversion unit

12 3D assembly process design module

121 Product attribute editing unit

122 distribution units

123 Process structure tree forming unit

124 content editing unit

13 3D assembly process simulation module

131 Simulation environment simulation construction unit

132 3D assembly animation forming unit

133 Analysis and optimization unit

14 3D assembly process publishing module

141 Information Integration Unit

142 file conversion unit

143 file release unit

S1～S4 steps

Detailed ways

Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention.

The purpose of the present invention is to provide a method and system for generating a three-dimensional assembly process for aerospace products, which is used to solve the problem of information gap between three-dimensional product design, three-dimensional process design and three-dimensional assembly site implementation in the prior art. The invention utilizes the three-dimensional model issued by the product design department as a data source to carry out three-dimensional assembly process design and generate three-dimensional assembly process files for workshop assembly personnel to browse and use. The principles and implementations of a three-dimensional assembly process generation method and system for aerospace products of the present invention will be described in detail below, so that those skilled in the art can understand the three-dimensional assembly process for aerospace products of the present invention without creative work. Assembly process generation method and system.

Please refer to FIG. 1 , which is a schematic flowchart of a method for generating a three-dimensional assembly process for aerospace products according to the present invention. As shown in Figure 1, the present invention provides a method for generating a three-dimensional assembly process for aerospace products, the method comprising:

Step S1, constructing a 3D manufacturing resource library including product, tooling, tool and auxiliary material information.

Step S2, performing process task decomposition and process compilation according to the constructed 3D manufacturing resource library to form a process structure tree.

Step S3, constructing a virtual assembly environment, simulating and analyzing the assembly process according to the 3D model, assembly process and process structure tree, and forming a 3D assembly animation matching the actual assembly requirements.

Step S4, integrating process design information and simulation information, forming a three-dimensional assembly process file, and releasing it to the assembly site.

The above steps will be described in detail below.

First, step S1 is executed to construct a 3D manufacturing resource library including product, tooling, tool and auxiliary material information. In step S1, it is used to construct manufacturing resource information, which is the data source of the 3D assembly process generation method and system. Including 3D modeling, MBD model definition, format conversion. The three-dimensional modeling includes product modeling, tooling tool modeling, auxiliary material modeling, etc., and the model must contain all parts and tooling tool information related to product assembly; the MBD model definition is based on the three-dimensional model, adding The product manufacturing information and non-geometric information, including product structure, technical requirements, process, inspection and management information; the format conversion is to carry out lightweight processing of 3D manufacturing resource information, and remove engineering information irrelevant to assembly in the model. During format conversion, the benchmark information, PMI information, MBD annotation information and other content of the file are retained.

In this embodiment, as shown in FIG. 2, the step S1 specifically includes the following steps:

S11, establish a three-dimensional model of the product and tooling that meets the process requirements through a three-dimensional design software, and the three-dimensional model includes a product model, a tooling tool model and an auxiliary material model.

S12. Perform MBD annotation on the 3D model to form an MBD-based 3D model definition. The three-dimensional model definition of MBD is to add manufacturing information and non-geometric information of the product on the basis of the three-dimensional model, including product structure, technical requirements, process, inspection and management.

S13, convert the annotated 3D model into a model format, convert it into a lightweight product model, tooling tool module and auxiliary material model, and form a 3D manufacturing resource library containing information on products, tooling, tools and auxiliary materials. The light weight is to remove engineering information irrelevant to assembly in the 3D model, and retain the benchmark information, PMI information and MBD annotation information of the 3D model during format conversion.

Next, step S2 is executed, and the process task decomposition and process preparation are performed according to the constructed 3D manufacturing resource library to form a process structure tree. In step S2, first, import the manufacturing resource model, use TCM to manage the resource library, and edit the attribute information of the 3D model, including part code, name, type, quantity, specification, where it comes from, and the workshop used. Taking the process and steps as the key, edit the work content, construct the process structure, plan the process flow according to the serial and parallel relationship of the assembly process, form a process structure tree, and realize the conversion from EBOM to PBOM. The structure of the process structure tree is shown in the figure 4.

In step S2, according to the requirements of the assembly process and the three-dimensional model of the structure, process tree compilation and product and resource allocation are performed to form a process structure tree. In this embodiment, as shown in Figure 3, the step S2 specifically includes:

S21. Edit product attribute information by using the product model. The 3D model attribute information includes parts code, name, type, quantity, specification, source and workshop.

S22, assigning different products and resources to each process, so as to realize the allocation of three-dimensional data of each station.

S23, plan the process flow according to the serial and parallel relationship of the assembly process, as shown in FIG. 4, form a process structure tree, and realize the conversion from EBOM to PBOM.

S24, adding operation content and methods, precision and quality requirements for each process and work step until all processes and work steps are compiled.

Then step S3 is executed to build a virtual assembly environment, simulate and analyze the assembly process according to the 3D model, assembly process and process structure tree, and form a 3D assembly animation that matches the actual assembly requirements. In step S3, a virtual assembly environment is constructed, and the rationality of the assembly process is analyzed through assembly sequence planning, path planning, interference inspection, and human factor analysis. The main analysis contents include: assembly path, assembly sequence, rationality of assembly actions, and Visibility, accessibility, comfort, etc. for assemblers. Taking the process as the unit, the simulation results are output to form 3D animation information.

In step S3, the 3D assembly process simulation module 13 is made to use the 3D process tree created by the 3D process design module and the product and resource information allocated to establish the simulation information of the process nodes to form the 3D process simulation information of the entire product. In an embodiment, as shown in FIG. 5, the step S3 specifically includes:

S31, constructing a virtual assembly simulation environment with reference to the layout of the assembly site.

S32. Mark corresponding attributes and process information in the 3D model according to assembly process or process requirements, and add virtual assembly and action to each component in the 3D model to form a 3D assembly animation.

S33, according to the assembly process description, analyze the simulation process data in the 3D assembly animation, obtain the problematic process or procedure, optimize and improve the process, until the 3D assembly animation matches the actual assembly requirements.

In step S3, after optimization and improvement, it should be judged whether the 3D assembly process established by the 3D assembly process design and 3D assembly process simulation meets the requirements. If it passes the review, go to the next step. If it fails the review, return to the 3D assembly process. Process design and 3D process simulation module re-edited;

Then step S4 is executed to integrate process design information and simulation information to form a three-dimensional assembly process file and publish it to the assembly site. The step S4 is used to export the three-dimensional assembly process to the workshop. In step S4, the three-dimensional assembly process includes three parts: process search, supporting detailed statistics, and on-site operation guidance. Process search uses options such as process code and process name to query processes; supporting detailed statistics display the parts matching information, process resource information, auxiliary material information, purchased parts information, etc. of the selected process, including the names, codes, specifications, Workshop used, where from, type, quantity, etc. On-site operation guidance is the process data used in the workshop assembly process, including process information, process step information, supporting information, 3D animation information, etc.

In the step S4, the integrated 3D assembly process file is converted into HTML format, and then the converted 3D assembly process file in HTML format is released to the assembly site.

The three-dimensional assembly process files include process search files, supporting detailed statistical files and on-site operation guidance files.

In order to realize the above method, the present invention provides a three-dimensional assembly process generation system for aerospace products. The three-dimensional assembly process generation system 1 for aerospace products adopts website development technology, system integration technology and network technology, and integrates the current enterprise System integration of digital design software, product data management software, and process design software, development and construction of the digital system of the workshop, the system adopts a network system based on B/S structure support, and realizes on-site implementation of the assembly workshop through browser/client configuration . The client initiates an access request, and the server verifies user permissions and data integrity and then dynamically returns the operation result. The assembly site uses the client display to view process information and assembly process animations, and guides the completion of the assembly operation.

As shown in Figure 6, the 3D assembly process generation system 1 for aerospace products at least includes: 3D manufacturing resource library construction module 11, 3D assembly process design module 12, 3D assembly process simulation module 13 and 3D assembly process release module 14 .

The 3D manufacturing resource library building module 11 is used to build a 3D manufacturing resource library including product, tooling, tool and auxiliary material information. The 3D manufacturing resource library construction module 11 is used to construct manufacturing resource information, and is the data source of the 3D assembly process generation method and system. Including 3D modeling, MBD model definition, format conversion. The three-dimensional modeling includes product modeling, tooling tool modeling, auxiliary material modeling, etc., and the model must contain all parts and tooling tool information related to product assembly; the MBD model definition is based on the three-dimensional model, adding The product manufacturing information and non-geometric information, including product structure, technical requirements, process, inspection and management information; the format conversion is to carry out lightweight processing of 3D manufacturing resource information, and remove engineering information irrelevant to assembly in the model. During format conversion, the benchmark information, PMI information, MBD annotation information and other content of the file are retained.

Specifically, as shown in FIG. 7 , in this embodiment, the 3D manufacturing resource library building module 11 includes: a modeling unit 111 , a labeling unit 112 and a format converting unit 113 .

The modeling unit 111 establishes a three-dimensional model of a product and a tooling that meets technological requirements through a three-dimensional design software, and the three-dimensional model includes a product model, a tooling tool model and an auxiliary material model.

The labeling unit 112 is connected to the modeling unit 111, and performs MBD labeling on the 3D model to form an MBD-based 3D model definition. The three-dimensional model definition of MBD is to add manufacturing information and non-geometric information of the product on the basis of the three-dimensional model, including product structure, technical requirements, process, inspection and management.

The format conversion unit 113 is connected to the labeling unit 112, and performs model format conversion on the marked three-dimensional model, and converts it into a lightweight product model, a tooling tool module and an auxiliary material model, and forms a model including products, tooling, tools and auxiliary materials. 3D manufacturing resource library of information. The light weight is to remove engineering information irrelevant to assembly in the 3D model, and retain the benchmark information, PMI information and MBD annotation information of the 3D model during format conversion.

The 3D assembly process design module 12 is connected to the 3D manufacturing resource library building module 11, and performs process task decomposition and process compilation according to the constructed 3D manufacturing resource library to form a process structure tree. In the 3D assembly process design module 12, first import the manufacturing resource model, use TCM to manage the resource library, and edit the attribute information of the 3D model, including part code, name, type, quantity, specification, where it comes from, and the workshop used, etc. content. Taking the process and work step as the key, edit the work content, construct the process structure, plan the process flow according to the serial and parallel relationship of the assembly process, form a process structure tree, and realize the conversion from EBOM to PBOM. The structure of the process structure tree is shown in the figure 4.

Specifically, as shown in FIG. 8 , in this embodiment, the 3D assembly process design module 12 includes: a product attribute editing unit 121 , an assigning unit 122 , a process structure tree forming unit 123 and a content editing unit 124 .

The product attribute editing unit 121 uses the product model to edit product attribute information; the three-dimensional model attribute information includes component code, name, type, quantity, specification, source and workshop.

The allocation unit 122 is connected with the product attribute editing unit 121, and allocates different products and resources for each process, so as to realize the allocation of three-dimensional data for each station.

The process structure tree forming unit 123 is connected to the distribution unit 122, plans the process flow according to the serial and parallel relationship of the assembly process, forms a process structure tree, and realizes the conversion from EBOM to PBOM.

The content editing unit 124 is connected with the process structure tree forming unit 123, and adds operation content and methods, precision and quality requirements for each process and work step until the contents of all processes and work steps are compiled.

The three-dimensional assembly process simulation module 13 is connected with the three-dimensional manufacturing resource library construction module 11 and the three-dimensional assembly process design module 12 to construct a virtual assembly environment, and simulate and analyze the assembly process according to the three-dimensional model, assembly process and process structure tree. process to form a 3D assembly animation that matches the actual assembly requirements.

In the three-dimensional assembly process simulation module 13, a virtual assembly environment is constructed, and the rationality of the assembly process is analyzed through assembly sequence planning, path planning, interference inspection, and human factor analysis. The main analysis contents include: assembly path, assembly sequence, The rationality of the assembly action and the visibility, accessibility, and comfort of the assembly personnel. Taking the process as the unit, the simulation results are output to form 3D animation information.

Specifically, as shown in FIG. 9 , in this embodiment, the 3D assembly process simulation module 13 includes: a simulation environment simulation construction unit 131 , a 3D assembly animation formation unit 132 and an analysis optimization unit 133 .

The simulation environment simulation construction unit 131 constructs a virtual assembly simulation environment with reference to the layout of the assembly site;

The 3D assembly animation forming unit 132 is connected to the simulation environment simulation construction unit 131, and according to the requirements of the assembly process or process, it marks the corresponding attributes and process information in the 3D model, and adds a virtual animation to each component in the 3D model. Assembly and action to form 3D assembly animation;

The analysis and optimization unit 133 is connected to the 3D assembly animation forming unit 132, analyzes the simulation process data in the 3D assembly animation according to the assembly process description, obtains the problematic process or process, and optimizes and improves the process until the 3D assembly animation Match the actual assembly requirements.

After optimization and improvement, it should be judged whether the 3D assembly process established by the 3D assembly process design and 3D assembly process simulation meets the requirements. If it passes the review, enter the next step. If it fails the review, return to the 3D assembly process design and 3D process. The simulation module is re-edited; therefore, the present invention also includes a review module (not shown in the figure), which is used to review whether the 3D assembly process established by the 3D assembly process design and 3D assembly process simulation meets the requirements. The 3D assembly process release module 14 is allowed to carry out the work of integrated release only after passing the review.

The 3D assembly process release module 14 is connected to the 3D assembly process simulation module 13, integrates process design information and simulation information, forms a 3D assembly process file, and publishes it to the assembly site.

In the 3D assembly process publishing module 14, the 3D assembly process includes three parts: process search, supporting detailed statistics, and on-site operation guidance. Process search uses process code, process name and other options to query processes; supporting detailed statistics display the parts matching information, process resource information, auxiliary material information, purchased parts information, etc. of the selected process, including the names, codes, specifications, Workshop used, where from, type, quantity, etc. On-site operation guidance is the process data used in the workshop assembly process, including process information, process step information, supporting information, 3D animation information, etc.

Specifically, as shown in FIG. 10 , in this embodiment, the three-dimensional assembly process release module 14 includes: an information integration unit 141 , a file conversion unit 142 and a file release unit 143 .

The information integration unit 141 integrates process design information and simulation information to form a three-dimensional assembly process file;

The file conversion unit 142 is connected to the information integration unit 141, and converts the integrated 3D assembly process file into HTML format;

The file release unit 143 is connected to the file conversion unit 142, and releases the converted 3D assembly process file in HTML format to the assembly site.

The three-dimensional assembly process files include process search files, supporting detailed statistical files and on-site operation guidance files.

In summary, a method and system for generating a three-dimensional assembly process for aerospace products according to the present invention achieves the following beneficial effects:

1. On the basis of traditional two-dimensional assembly process regulations, the present invention uses digital technology and information technology to transmit the information required for on-site production through three-dimensional models and three-dimensional processes, providing an accurate and intuitive assembly process for aerospace products. means of visualization. Therefore, the present invention can solve the information gap problem between process design and on-site assembly in the prior art.

2. The present invention can also comprehensively and intuitively express production information and realize the paperless construction of aerospace product assembly workshops, which is conducive to further improving the informatization level of assembly workshops, shortening the assembly cycle of aerospace products, and reducing production costs.

Therefore, the present invention effectively overcomes various shortcomings in the prior art and has high industrial application value.

The above-mentioned embodiments only illustrate the principles and effects of the present invention, but are not intended to limit the present invention. Anyone skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical ideas disclosed in the present invention should still be covered by the claims of the present invention.

Claims (15)

1. the generation method of the three-dimensional assembly technique for space product, is characterized in that, described method comprises:

Step S1, build the three-dimensional that comprises product, frock, instrument and auxiliary material information and manufacture resources bank;

Step S2, manufacture resources bank according to the three-dimensional built and carry out process task decomposition and technics institution, forms the process structure tree;

Step S3, build virtual assembly environment, and according to three-dimensional model, assembling process and process structure tree, emulation is also analyzed assembling process, forms the three-dimensional assembling animation be complementary with real matching requirements;

Step S4, integrated technique design information and artificial intelligence, form three-dimensional assembly technique file, is published to erecting yard.

2. the generation method of the three-dimensional assembly technique for space product according to claim 1, is characterized in that, described step S1 specifically comprises:

S11, set up the product that meets technological requirement and the three-dimensional model of frock by Three-dimensional Design Software, and described three-dimensional model comprises product model, frock tool model and auxiliary material model;

S12, carry out the MBD mark to described three-dimensional model, forms the three-dimensional model definition based on MBD;

S13, carry out the model format conversion by the three-dimensional model after mark, is converted into light-weighted product model, and frock tool model and auxiliary material model form the three-dimensional that comprises product, frock, instrument and auxiliary material information and manufacture resources bank.

3. the generation method of the three-dimensional assembly technique for space product according to claim 2, it is characterized in that, the three-dimensional model definition of described MBD is on the three-dimensional model basis, add manufacturing information and the non-geological information of product, comprise product structure, technical requirement, technique, check and management.

4. the generation method of the three-dimensional assembly technique for space product according to claim 2, it is characterized in that, described lightweight is to remove in three-dimensional model assembling irrelevant engineering information, when format conversion, retains reference information, PMI information and the MBD markup information of three-dimensional model.

5. the generation method of the three-dimensional assembly technique for space product according to claim 1 and 2, is characterized in that, described step S2 specifically comprises:

S21, utilize product model editor product attribute information;

S22, distribute different product and resource for each operation, realizes the distribution of each station three-dimensional data;

S23, according to serial and the concurrency relation of assembly technology, the planning technological process, form the process structure tree, realizes the conversion of EBOM to PBOM;

S24, be that each operation, work step add job content and method, precision and quality requirements, until all process steps, work step content compilation complete.

6. the generation method of the three-dimensional assembly technique for space product according to claim 5, is characterized in that, described three-dimensional model attribute information comprises parts code name, title, type, quantity, specification, source and use workshop.

7. the generation method of the three-dimensional assembly technique for space product according to claim 1, is characterized in that, described step S3 specifically comprises:

S31, with reference to the erecting yard layout, constructing virtual assembly simulation environment;

S32, according to assembly technology or operation requirement, mark attribute and technique information corresponding in three-dimensional model, and each parts in three-dimensional model are added to virtual assembling and action, forms three-dimensional assembling animation;

S33, describe according to assembly technology, and the simulation process data analysis in three-dimensional assembling animation, obtain in-problem technique or operation, optimizes modified flow, until three-dimensional assembling animation and real matching requirements are complementary.

8. the generation method of the three-dimensional assembly technique for space product according to claim 1, it is characterized in that, in described step S4, integrated three-dimensional assembly technique file is converted to html format, afterwards the three-dimensional assembly technique file of the html format of conversion is published to erecting yard.

9. the generation method of the three-dimensional assembly technique for space product according to claim 8, is characterized in that, described three-dimensional assembly technique file comprises technique retrieving files, supporting detailed statistics file and site work policy paper.

10. the generation system of the three-dimensional assembly technique for space product, is characterized in that, described system comprises:

The three-dimensional resources bank of manufacturing builds module, and the three-dimensional that comprises product, frock, instrument and auxiliary material information for structure is manufactured resources bank;

The three-dimensional assembly technique design module, be connected with the described three-dimensional resources bank structure module of manufacturing, and according to the three-dimensional built, manufactures resources bank and carry out process task decomposition and technics institution, forms the process structure tree;

The three-dimensional assembly technique emulation module, with the described three-dimensional resources bank structure module of manufacturing, be connected with described three-dimensional assembly technique design module, build virtual assembly environment, and according to three-dimensional model, assembling process and process structure tree, emulation is also analyzed assembling process, forms the three-dimensional assembling animation be complementary with real matching requirements;

The three-dimensional assembly technique release module, be connected with described three-dimensional assembly technique emulation module, and integrated technique design information and artificial intelligence form three-dimensional assembly technique file, are published to erecting yard.

11. the generation system of the three-dimensional assembly technique for space product according to claim 10, is characterized in that, the described three-dimensional resources bank structure module of manufacturing comprises:

Modeling unit, set up the product that meets technological requirement and the three-dimensional model of frock by Three-dimensional Design Software, and described three-dimensional model comprises product model, frock tool model and auxiliary material model;

The mark unit, be connected with described modeling unit, and described three-dimensional model is carried out to the MBD mark, forms the three-dimensional model definition based on MBD;

Format conversion unit, with described mark unit, be connected, the three-dimensional model after mark is carried out to the model format conversion, be converted into light-weighted product model, frock tool model and auxiliary material model, form the three-dimensional that comprises product, frock, instrument and auxiliary material information and manufacture resources bank.

12. the generation system of the three-dimensional assembly technique for space product according to claim 10, is characterized in that, described three-dimensional assembly technique design module comprises:

The product attribute edit cell, utilize product model editor product attribute information;

Allocation units, be connected with described product attribute edit cell, distributes different product and resource for each operation, realizes the distribution of each station three-dimensional data;

The process structure tree forms unit, is connected with described allocation units, and according to serial and the concurrency relation of assembly technology, the planning technological process, form the process structure tree, realizes the conversion of EBOM to PBOM;

The Edition Contains unit, form unit with process structure tree and be connected, is each operation, work step interpolation job content and method, precision and quality requirements, until all process steps, work step content compilation complete.

13. the generation system of the three-dimensional assembly technique for space product according to claim 10, is characterized in that, described three-dimensional assembly technique emulation module comprises:

Simulated environment simulation tectonic element, with reference to the erecting yard layout, constructing virtual assembly simulation environment;

Three-dimensional assembling animation forms unit, with described simulated environment simulation tectonic element, be connected, according to assembly technology or operation requirement, attribute and technique information corresponding in three-dimensional model marked, each parts in three-dimensional model are added to virtual assembling and action, form three-dimensional assembling animation;

The analysis optimization unit, form unit with described three-dimensional assembling animation and be connected, and describes according to assembly technology, to the simulation process data analysis in three-dimensional assembling animation, obtain in-problem technique or operation, optimize modified flow, until three-dimensional assembling animation and real matching requirements are complementary.

14. the generation system of the three-dimensional assembly technique for space product according to claim 10, is characterized in that, described three-dimensional assembly technique release module comprises:

The information integrated unit, integrated technique design information and artificial intelligence, form three-dimensional assembly technique file;

The file converting unit, be connected with described information integrated unit, and integrated three-dimensional assembly technique file is converted to html format;

The file distribution unit, be connected with described file converting unit, and the three-dimensional assembly technique file of the html format of conversion is published to erecting yard.

15. according to the described generation system of three-dimensional assembly technique for space product of claim 10 or 14, it is characterized in that, described three-dimensional assembly technique file comprises technique retrieving files, supporting detailed statistics file and site work policy paper.

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