Knowledge-based part parameterized modeling method for automobile welding jig

Abstract

The invention relates to the field of computer aided design and discloses a knowledge-based part parameterized modeling method for an automobile welding jig. The method comprises the following steps of extracting design knowledge for the welding jig; performing expression and classification on the design knowledge; by virtue of a software development platform, creating a part model program; adding the design knowledge to the part model program; then designing an interactive interface of the part model program; packaging the part model program; and finally building a part geometric model by using the part model program. According to the knowledge-based part parameterized modeling method for the automobile welding jig, the problems that model building is complicated and parameterized design and design knowledge cannot be effectively organized and expressed in an existing jig part model building process are solved; automatic modeling of jig parts is realized; the model building is quick and accurate; the design efficiency of the welding jig part model is improved; and the product research and development cycle is shortened.

Description

technical field [0001] The invention relates to the field of computer aided design, in particular to a knowledge-based parametric modeling method for automobile welding fixture parts. Background technique [0002] In the automobile manufacturing industry, the automobile body welding fixture occupies a very important position in the automobile welding line, and the speed and quality of its design and manufacture will directly affect the production scale, efficiency and quality of the automobile. The welding fixture design process is generally divided into four stages: workpiece clamping planning, welding fixture planning and design, welding fixture structure design and verification. Among them, the welding fixture structure design is an important part of the design process. According to Based on the planning result of the welding fixture, select the appropriate welding fixture type, determine the size parameters and knowledge type of the welding fixture, and finally model the...

AI Technical Summary

Problems solved by technology

[0003] Most of the current modeling methods for welding fixtures are: sketch the sketch outline of the fixture part model, generate the part geometry model, add other features of the part, parameterize the model, and then complete the fixture model establishment, but this modeling method not only Low efficiency, parametric design and design knowledge cannot be effectively organized and expressed, and it is mainly designed by designers according to their own design experience, which requires a lot of manpower and energy, and it is difficult to scientifically and effectively inherit domain knowledge and reuse

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