Automatic recognition of turning features using 2-D drawing files

Abstract

A CAD/CAM link is developed for rotational components. The link consists of three modules, namely, structured modeling, feature recognition, and feature sequencing for machining. An algorithmic approach is used to generate a structured component model. A feature recognition knowledge base is developed for identifying turning surfaces on the structured component model without any human intervention. The automatic recognition process is achieved by matching entities of the component model with predefined entities to identify the types of turning features required to produce the component. The recognized features are sequenced in an operational machining sequence that produces best results.