CN112380593A - Visual assembly three-dimensional process composition method - Google Patents
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Abstract
The invention relates to a visual assembly three-dimensional process composition method, which comprises the following specific steps: firstly, establishing a product data management module and a tool library; secondly, establishing a three-dimensional model processing module; thirdly, establishing an assembly simulation analysis module; fourthly, establishing an assembly three-dimensional process generation module; fifthly, assembling the three-dimensional process generation module according to the assembly scheme, and sixthly, establishing a typical process knowledge base; and step seven, establishing a field release module. The invention realizes an efficient and reasonable assembly process scheme, avoids ambiguity and deviation, ensures consistency, realizes the visualization of the whole design flow of the assembly process and improves the product quality.
Description
Technical Field
The invention belongs to the technical field of assembly processes, and particularly relates to a visual assembly three-dimensional process forming method.
Background
At present, the key part assembly process design adopts a two-dimensional mode, and mainly depends on a paper assembly process and a process design method marked by a design drawing.
The defects of the prior art are as follows: at present, the assembly process design adopts a two-dimensional mode, the process design completely depends on a paper two-dimensional graph which only expresses the design intention, is limited by the expressive force of the paper two-dimensional graph, wastes a great deal of energy of process personnel in the mutual conversion of an entity image and an abstract two-dimensional view expression mode, and inevitably generates ambiguity and deviation. The formed process is lack of verification, the problem that the process design process cannot be exposed is moved to a production and manufacturing link, and the process design mode has the following problems:
1) at present, the domestic three-dimensional assembly process design is still in a groping stage.
2) The three-dimensional model issued by the design department cannot be directly used for developing the process design in the process of process design.
3) The consistency is poor. The three-dimensional model needs to be converted into a two-dimensional graph during process design, so that the data source is not unique and cannot be associated with the product design model. And when the same product is compiled by different process personnel, different schemes can be obtained, the consistency is lacked, the assembly manufacturability is difficult to be considered comprehensively and correctly in the primary stage of product design, and the feedback and modification of the assembly process with problems are slow and difficult to realize.
4) The process design is disjointed from the process simulation, the simulation parameters and the process design parameters cannot be automatically transmitted, and the repeated labor workload is large.
5) Visual expression of the process cannot be realized, the operability and the easy realization degree of the tool cannot be evaluated, and inconvenience is brought to production.
6) The rationality of the process can only be verified by actual assembly, however, there is no means of evaluation as to whether the process has been optimized.
7) The rationality of the process can only be verified by actual assembly, however, there is no means of evaluation as to whether the process has been optimized.
Disclosure of Invention
The invention aims to provide a visual assembly three-dimensional process forming method, which realizes an efficient and reasonable assembly process scheme, avoids ambiguity and deviation, ensures consistency, realizes visualization of the whole assembly process design flow and improves product quality.
The technical scheme of the invention is that a visual assembly three-dimensional process composition method comprises the following specific steps:
firstly, establishing a product data management module and a tool library; the product data management module is composed of product data, and the product data comprises three-dimensional models of all parts forming a product and technical requirements of product assembly; the tool library comprises tool information of all devices, dies, cutters and the like of the assembled product and three-dimensional models of all tools;
secondly, establishing a three-dimensional model processing module; the three-dimensional model processing module extracts product data from the product data management module and edits and generates an assembly three-dimensional model of the product part; carrying out lightweight treatment on the generated part process model to form a lightweight model; the three-dimensional model processing module continuously forms the lightweight model of each part into a lightweight model of a product containing an assembly level according to the assembly technical requirement, and renders the three-dimensional lightweight model of the product to generate a three-dimensional model of the product which can be displayed on a screen;
thirdly, establishing an assembly simulation analysis module; receiving a rendered three-dimensional model of a product which can be displayed on a screen, planning an assembly sequence, displaying the assembly sequence on the screen, and performing path planning, interference collision analysis and human-computer efficacy analysis to finally form an assembly scheme of the product;
fourthly, establishing an assembly three-dimensional process generation module; according to the assembly scheme and the rendered three-dimensional model of the product which can be displayed on a screen, tool information and the three-dimensional model thereof required by the assembly scheme are called from a tool library;
fifthly, performing visual frame animation definition on the part three-dimensional model and the tooling three-dimensional model by the assembly three-dimensional process generating module according to the assembly scheme to form a product visual assembly three-dimensional process which can display assembly sequence, assembly path, tooling use and assembly technical requirements;
sixthly, establishing a typical process knowledge base; the typical process knowledge base receives the visual assembly three-dimensional process of the product from the assembly three-dimensional process generation module and stores the visual assembly three-dimensional process;
and seventhly, establishing a field release module, wherein the field release module receives the visual assembly three-dimensional process of the product from the typical process knowledge base and displays the visual assembly three-dimensional process on a screen to realize field release of the visual assembly three-dimensional process.
The invention has the advantages that in the process of process composition, besides the data of the existing two-dimensional process design, the invention also comprises tool resources, process knowledge resources and the like, an assembly simulation video and a simulation analysis report, and in the process of process composition, the assembly simulation is realized by a digital means and comprises the process simulations of assembly sequence, assembly path, interference and the like; the invention can directly edit the three-dimensional model issued by the design department in the method and carry out lightweight model conversion; the product model can be utilized to directly carry out assembly process composition in the method; the method of the invention provides an open interface, can be integrated with an assembly simulation analysis module or other assembly simulation methods, and can further carry out simulation optimization of the process according to requirements after the process composition is completed; the method has the advantages that the tool library and the knowledge library are built in the method, a large amount of process equipment and condensed assembly knowledge are stored, the process design efficiency is greatly improved, and the process knowledge is accumulated in a large amount; the invention discloses a teaching type interactive visual assembly three-dimensional process field release; the invention realizes the visualization of the whole flow of the assembly process design, improves the efficiency of the process composition design, ensures the quality of the process, shortens the period of process development, greatly improves the qualification rate of products and provides conditions for the process knowledge accumulation of enterprises.
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FIG. 1 is a schematic diagram of a visual three-dimensional assembly process construction method of the present invention.
Detailed Description
The technical scheme of the invention is further described in detail in the following with the accompanying drawings of the specification.
As shown in fig. 1, the method for visually assembling a three-dimensional process comprises the following specific steps:
firstly, establishing a product data management module and a tool library; the product data management module is composed of product data, and the product data comprises three-dimensional models of all parts forming the product, technical requirements of product assembly and the like. The tool library comprises tool information of all devices, dies, cutters and the like of the assembled product and three-dimensional models of all tools.
Secondly, establishing a three-dimensional model processing module; the three-dimensional model processing module extracts product data from the product data management module, namely extracts three-dimensional models of all parts required by assembling products and technical requirements of the assembled products, and edits and generates an assembled three-dimensional model of the product parts according to the three-dimensional models of the parts and the technical requirements of the assembled products; carrying out lightweight processing on the generated part process model, wherein the lightweight processing refers to that the part process model is placed in a space rectangular coordinate system, the appearance of the part process model is converted into coordinate points, and digital description is carried out to form a lightweight model; and the three-dimensional model processing module continuously forms the lightweight model of each part into a lightweight model of a product containing an assembly level according to the assembly technical requirement, renders the three-dimensional lightweight model of the product and generates a three-dimensional model of the product which can be displayed on a screen.
Thirdly, establishing an assembly simulation analysis module; the assembly simulation analysis module receives the rendered three-dimensional model of the product which can be displayed on a screen from the three-dimensional model processing module, plans an assembly sequence, displays the assembly sequence on the screen, performs the work of path planning, interference collision analysis, man-machine efficacy analysis and the like, and finally forms an assembly scheme of the product, wherein the assembly scheme comprises an assembly sequence, an assembly path and the like.
Fourthly, establishing an assembly three-dimensional process generation module; and according to the assembly scheme and the rendered three-dimensional model of the product which can be displayed on a screen, tool information and the three-dimensional model thereof required by the assembly scheme are called from the tool library.
Fifthly, performing visual frame animation definition on the part three-dimensional model and the tooling three-dimensional model by the assembly three-dimensional process generating module according to the assembly scheme to form a product visual assembly three-dimensional process which can display assembly sequence, assembly path, tooling use and assembly technical requirements;
sixthly, establishing a typical process knowledge base; the typical process knowledge base receives the visual assembly three-dimensional process of the product from the assembly three-dimensional process generation module and stores the visual assembly three-dimensional process;
and seventhly, establishing a field release module, wherein the field release module receives the visual assembly three-dimensional process of the product from the typical process knowledge base and displays the visual assembly three-dimensional process on a screen to realize field release of the visual assembly three-dimensional process.
The method of the invention mainly realizes the following functions of 1) processing and generating displayable lightweight process models; 2) outputting an assembly scheme of the product; 3) outputting a visual three-dimensional process of a product; 4) a tool library; 5) a typical process knowledge base; 6) and issuing a product visual three-dimensional process. The invention integrates a product data management module, a three-dimensional model processing module, an assembly simulation analysis module, an assembly three-dimensional process generation module, a typical process knowledge base, a tool base and a field release module, wherein the integrated contents comprise interface integration, flow integration, data integration and knowledge integration among methods.
Claims (1)
1. A visual assembly three-dimensional process composition method is characterized in that: the method comprises the following specific steps:
firstly, establishing a product data management module and a tool library; the product data management module is composed of product data, and the product data comprises three-dimensional models of all parts forming a product and technical requirements of product assembly; the tool library comprises tool information of all devices, dies, cutters and the like of the assembled product and three-dimensional models of all tools;
secondly, establishing a three-dimensional model processing module; the three-dimensional model processing module extracts product data from the product data management module and edits and generates an assembly three-dimensional model of the product part; carrying out lightweight treatment on the generated part process model to form a lightweight model; the three-dimensional model processing module continuously forms the lightweight model of each part into a lightweight model of a product containing an assembly level according to the assembly technical requirement, and renders the three-dimensional lightweight model of the product to generate a three-dimensional model of the product which can be displayed on a screen;
thirdly, establishing an assembly simulation analysis module; receiving a rendered three-dimensional model of a product which can be displayed on a screen, planning an assembly sequence, displaying the assembly sequence on the screen, and performing path planning, interference collision analysis and human-computer efficacy analysis to finally form an assembly scheme of the product;
fourthly, establishing an assembly three-dimensional process generation module; according to the assembly scheme and the rendered three-dimensional model of the product which can be displayed on a screen, tool information and the three-dimensional model thereof required by the assembly scheme are called from a tool library;
fifthly, performing visual frame animation definition on the part three-dimensional model and the tooling three-dimensional model by the assembly three-dimensional process generating module according to the assembly scheme to form a product visual assembly three-dimensional process which can display assembly sequence, assembly path, tooling use and assembly technical requirements;
sixthly, establishing a typical process knowledge base; the typical process knowledge base receives the visual assembly three-dimensional process of the product from the assembly three-dimensional process generation module and stores the visual assembly three-dimensional process;
and seventhly, establishing a field release module, wherein the field release module receives the visual assembly three-dimensional process of the product from the typical process knowledge base and displays the visual assembly three-dimensional process on a screen to realize field release of the visual assembly three-dimensional process.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2009238481A1 (en) * | 2008-04-22 | 2009-10-29 | Exxonmobil Upstream Research Company | Functional-based knowledge analysis in a 2D and 3D visual environment |
| CN103413004A (en) * | 2013-08-21 | 2013-11-27 | 上海交通大学 | Three-dimensional assembly process generation method and system for aerospace product |
| CN106446319A (en) * | 2016-06-29 | 2017-02-22 | 内蒙古第机械集团有限公司 | Assembly visualization process design method |
| CN107729668A (en) * | 2017-10-26 | 2018-02-23 | 上海湃睿信息科技有限公司 | Technological design coordination management system and its method based on threedimensional model |
-
2020
- 2020-11-20 CN CN202011313583.5A patent/CN112380593A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2009238481A1 (en) * | 2008-04-22 | 2009-10-29 | Exxonmobil Upstream Research Company | Functional-based knowledge analysis in a 2D and 3D visual environment |
| CN103413004A (en) * | 2013-08-21 | 2013-11-27 | 上海交通大学 | Three-dimensional assembly process generation method and system for aerospace product |
| CN106446319A (en) * | 2016-06-29 | 2017-02-22 | 内蒙古第机械集团有限公司 | Assembly visualization process design method |
| CN107729668A (en) * | 2017-10-26 | 2018-02-23 | 上海湃睿信息科技有限公司 | Technological design coordination management system and its method based on threedimensional model |
Non-Patent Citations (2)
| Title |
|---|
| 姜海英: "装甲车辆传动装置的数字化装配工艺仿真研究", 《中国优秀博硕士学位论文全文数据库(硕士)工程科技Ⅱ辑》 * |
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