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Paper-free three-dimensional assemblage process document accomplishing method

A technology of assembly process and implementation method, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problem that the CAAPP system assembly process design method cannot meet the high efficiency of manufacturing system, high information integration, and cannot meet the product development cycle and other issues to achieve the effect of shortening the assembly cycle, facilitating preparation, and improving operating efficiency

Inactive Publication Date: 2011-06-15
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS +1
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Problems solved by technology

[0005] The purpose of the present invention is that the traditional two-dimensional CAD-based CAAPP system will be difficult to fully meet the needs of enterprise CAD / CAPP / CAM integration and the traditional manual-based assembly process design method cannot meet the requirements of high efficiency and high information integration of the manufacturing system , can not meet the rapidly changing market requirements for the product development cycle, invent a method based on the 3D CAD basic design platform, which can be directly called by the process designer to the product CAD database, and quickly complete the realization of the paperless 3D assembly process file

Method used

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  • Paper-free three-dimensional assemblage process document accomplishing method
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  • Paper-free three-dimensional assemblage process document accomplishing method

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Embodiment Construction

[0030] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0031] Such as Figure 1-5 shown.

[0032] A method for realizing a paperless three-dimensional assembly process document, which includes the following steps:

[0033] Firstly, the process designer retrieves the CAD assembly file of the product to be assembled from the product design database, uses the CAD secondary development interface program to read the hierarchical information and constraint information of the CAD assembly model file, establishes a constraint list, and re-does it by the program The topological information and assembly information of the generated parts are organized and stored in the assembly information database ASSEMBLY_DB, such as figure 2 shown;

[0034] Secondly, use CAD software to segment the CAD design model of the part into triangular patches, generate triangular patch files (such as STL, VRML, etc.), and then establis...

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Abstract

Aiming to meet the current demand of three-dimensional assembly system and to address the problem that the two-dimensional paper process file cannot reflect the assembly details and requirements intuitively, the invention discloses a non-paper three-dimensional assembly-process file design method which makes three-dimensional process planning for the assembly resources of model products intuitively and interactively and generates three-dimensional assembly cards and assembly process animation. The software comprises (1) a model information conversion module, (2) an assembly process path planning module, (3) an assembly process card design module, (4) an assembly process file browsing module and (5) frock or tool management module. The invention solves the problem that two-dimensional paper process file cannot reflect the assembly details and requirements intuitively and is not beneficial for operators understanding and using. The invention is characterized by good intuition and interaction, through which the process operators can establish three-dimensional process files easily by introducing CAD design model and which acts as a teaching role to the operators on assembly site.

Description

technical field [0001] The invention relates to a method for generating a product assembly process, in particular to a method for acquiring and generating a three-dimensional assembly process file, in particular a method for realizing a paperless three-dimensional assembly process file. Background technique [0002] As we all know, assembly is an important link in the product life cycle. It is the process of combining a group of scattered parts through a reasonable process and various necessary methods according to the determined precision standards and technical requirements to make them into products; It is one of the main factors affecting product performance, quality, development cycle and cost. Therefore, the design and implementation quality of the assembly process determine the competitiveness of the product. With the rapid development and popularization of 3D CAD software, 3D CAD technology is replacing 2D CAD system as the basic platform for enterprise product inno...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50
Inventor 焦光明张丹左敦稳薛善良周华林闫静杨发春
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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