Abstract:

The automatic extraction of manufacturing information from the 3D BDT (Computer-Supported Design) models is an important field of work for the integration of BDT/BDI (Computer-Supported Manufacturing). In this article, a specialized system-based piece recognition approach is developed to support BDT/BDintegration. The standard for the exchange of product model data (STEP) is the standard for the exchange of product model data. The neighboring surfaces and qualities of each surface are drawn out of the STEP file and represented in a mathematical model (UNICEF-Supernatural Neighbourhood Relationship Matrix). At the same time, a database was created using a Windows-based editor and a rules writing format for the database was developed. Compare the geometric and topological information represented in the information base and parts are recognized. Part recognition algorithm can be applied to many BDT/BDI applications, such as process planning, group technology.The approach is applied to car motor parts with complex parts to show the efficiency and capacity of the algorithm.

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