作　　者： ; ; ; ;

机构地区： 广东工业大学

出　　处： 《中国机械工程》 1999年第8期909-910,共2页

摘　　要： 以某塑料模具公司的 Ｃ Ｉ Ｍ Ｓ应用工程为背景，探讨在 Ｃ Ｉ Ｍ Ｓ环境下的模具逆向工程框架及实现模具复杂曲面测量—建模（曲面重构）—加工一体化方法。分析商品化 Ｃ Ａ Ｄ／ Ｃ Ａ Ｍ 软件 Ｓ Ｔ Ｒ Ｉ Ｍ １００ 和 Ｃ Ｏ Ｐ Ｙ Ｃ Ａ Ｄ 中的曲面重构技术及实际应用效果。提出利用曲率函数辅助求解特征和拓扑关系加快曲面重构速度和准确性的方法。 Reverse engineering approach is widely applied in design and manufacturing of die and mould. In this paper, based on the background of CIMS engineering of a involved plastic die and mould manufacturing company, a new framework of reverse engineering in CIMS environments, as well as the approach of integrated measuring, modeling and machining of sculptured surfaces are proposed. The surface reconstruction technologies of some commercial software systems , such as STRIM100 and COPYCAD, and it's applied effect are investigated. The drawbacks of these software systems are that the former relys on the experience of the designer when he reconstructs a complex surface, and the latter is difficult and not flexible for user in definition of triangular meshes and their boundary constraints. A new approach of resolving features and topologic relations of sculptured surfaces, which has good effect in applying, is presented to improve the speed and accuracy of reconstruction.

关 键 词： 塑料模具 逆向工程 曲面重构

领　　域： [化学工程] [自动化与计算机技术] [自动化与计算机技术]