Parametric modeling and labeling method

Abstract

The invention provides a parametric modeling and labeling method. The parametric modeling and labeling method comprises the steps that 1, a foundation model of a sheet metal bracket is built, wherein the foundation model structurally comprises turnups, axle holes and fixing holes of the sheet metal bracket; 2, parameters of the foundation model are programmed; 3, a program automatically adjusts the foundation model according to the input sheet metal bracket model parameters, and a sheet metal bracket model is obtained; 4, the sheet metal bracket model is automatically labeled according to the input parameters; 5, a three-dimensional drawing of the sheet metal bracket model is output. The parametric modeling and labeling method has the advantages that through the parametric design, on the basis of the foundation model, modeling and intelligent labeling can be finished rapidly, a new model is generated rapidly to help a designer rapidly finish high-quality design work, repeated labor is avoided, the design and drawing difficulty is lowered, the requirements for product serialization and rapid amendment are met, the design speed of products is increased comprehensively, and the design quality of products is improved greatly.

Description

technical field [0001] The invention relates to the field of computer-aided engineering design, in particular to a parametric modeling and labeling method applied to the structural design of sheet metal brackets of spacecraft. Background technique [0002] There are a large number of instruments and pipe brackets with the same or similar functions, sizes, and interfaces in the structural compartment of the launch vehicle. The process is cumbersome and the production and forming are complicated (mainly sheet metal forming), but it has the characteristics of strong versatility and commonality. During the delivery process of the full 3D design drawings of rocket models, the mechanical and repetitive modeling and labeling of a large number of identical or similar sheet metal bracket products consumed a lot of energy and time for designers. [0003] The three-dimensional factory work of the launch vehicle sheet metal bracket generally requires three stages of work: the first sta...

AI Technical Summary

Problems solved by technology

[0005] 1. A large number of brackets have strong similarities, and the repetitive workload in design is large;

[0006] 2. The models designed by different people are quite different, and the quality is not high;

[0007] 3. The design is cumbersome and the degree of design automation is low;

[0008] 4. Insufficient labeling functions of 3D software and low design efficiency

[0009] The efficiency of current 3D modeling and 3D labeling is low

Mechanical and repetitive modeling, labeling and other work consume a lot of energy and time of designers

At present, the three-dimensional design of the sheet metal bracket has seriously restricted the overall design progress of the model.

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