The naming of the key dimension parameters in the template file is completely consistent with the parameter names of the corresponding standard parts in the standard part parameter database, so that parameterized driving can be conveniently carried out. As there are many domestic and foreign standards for cover mold design, when designing a standard part parameter database, various standards are stored in different databases.. This design method can significantly improve the efficiency of program query, and it is also conducive to the expansion and maintenance of the database. For each type of standard parts, a corresponding three-dimensional parameterized standard part solid model was established in accordance with commonly used specifications. In addition, according to the nature of the parameters, the parameters are divided into constant parameters, series parameters and continuous parameters that vary within a certain range.\ufeffThe standard parts parameter database mainly stores various parameters of standard parts. At present, the standard parameter database of automobile die issued by Volkswagen, Ogihara and China Automobile Manufacturers Association has been established. Standard parts are divided into 12 categories such as lifting device, limiting device, side punching device, punching device, positioning device, elastic device, pneumatic device, fastening device, pressing and unloading device, installation device, turning device, guide device, etc. In each database, establish corresponding tables according to the classification of standard parts, and each table stores the serialized parameters of a China Medical Device Mould suppliers type of standard parts. Typical structural parts are divided into four types: ribs, bosses, lifting lugs, and U-shaped grooves. The parameters of standard parts are divided into key parameters describing main structural features and auxiliary parameters describing secondary features. Through the analysis of commonly used standard parts, the correlation between the primary parameters and the secondary parameters is established.