Mold standard parts library system principle: The software provides a rich parametric design function. After the parameterized design of the part, modifying the parameter expression can change the part model accordingly, and realize the parameter driving of the part. That is to say, after parameterizing a model of the standard part of the mold and modifying its parameter expression, a new standard mold part can be obtained. According to this principle, the standard part system of the mold adopts a parametric modeling method to draw a K3A file of a certain specification and utilize it. The database stores the standard part series model parameters, and uses the database connection technology to programmatically associate the mold standard part file parameter expression with the model parameter in the database. After the user selects the mold standard part model of a specific specification, the program extracts and modifies the parameter value of the expression. Use the function to open and update the mold standard part model, and finally get the mold standard parts of the required specifications under the platform through the interface. Programmatically extract and modify model parameters, open-update models, mold standard part model files required by the software platform, and parametric modeling. Data means that the size of the parametric model is represented by a corresponding relationship. Instead of changing a parameter value with a certain value, all the dimensions associated with it will be automatically changed, that is, the parameterized model is used to modify and control the geometry by adjusting the parameters. The shape automatically realizes the precise modeling of the product. The parametric design technology uses its powerful sketch design, and the function of dimension-driven modification of the graphic becomes an effective means of initial design, product modeling and modification, serial design and comparison of various schemes and dynamic design. ZHEJIANG HESHUO TECHNOLOGY CO.,LTD , https://www.hosuocn.com