Three-dimensional model based on Top-Down machine part expressing method and preparation method of three-dimensional model

Abstract

The invention relates to a three-dimensional model based on a Top-Down machine part expressing method and a preparation method of the three-dimensional model. The preparation method of the three-dimensional model comprises the following steps: based on the Top-Down design methodology, applying a Pro/Top-Down design system, designing a top-layered three-dimensional skeleton model of machine parts under an assembly mode according to the learning requirements of the machine part expressing method, splitting the top-layered three-dimensional skeleton model into a plurality of three-dimensional models of the machine parts according to the requirements on learning of the expressing method of different types of machine parts, then sectioning the three-dimensional models of the machine parts to obtain 29 single three-dimensional models, and assembling the 29 single three-dimensional models to form of the machine parts, wherein the 30 three-dimensional models mainly comprise the three-dimensional models of the machine parts such as gears, shaft sleeves, supports, brackets and valve bodies. The three-dimensional model based on the Top-Down machine part expressing method and the preparation method of the three-dimensional model meet the requirements of the design and manufacturing process of products, the concurrent design and collaborative manufacturing of products can be realized conveniently, and the practical three-dimensional models are provided for learning of the theoretical knowledge of the machine part expressing method.

Description

technical field [0001] The invention relates to a three-dimensional model design method based on the TOP-DOWN expression method of a machine part, specifically designing a three-dimensional model based on the TOP-DOWN design methodology for learning the theoretical knowledge of the machine part expression method. Background technique [0002] The three-dimensional model of mechanical parts expression method is mainly used in the teaching of theoretical and practical courses such as mechanical drawing, mechanical parts surveying and computer graphics. There are mainly three-dimensional teaching models and parts surveying and mapping models on the market, which are generally made of engineering plastics, wood and steel. The main features are a wide variety, single structure and high price. [0003] The 3D model design method of the traditional machine parts expression method generally adopts the BOTTOM-UP design method. Generally, each part is designed first, and then these pa...

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Problems solved by technology

It can be seen that if there is no good planning and no overall consideration in the design stage, the design process will repeat a lot of work, resulting in a waste of time a

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