Wang Bo,Song Changxin,Cheng Jingzhi
(School of Life Science and Technology,Xi'an Jiaotong Univercity 710049,China)
Abstract:After analysis of machining feature and feature parameter of the box part and further investigation on feature entity's model, a novel automatic recognition approach was proposed that machining feature was automatically extracted by cross-sectional outline of a feature-based enti-ty's model. This method starts with the data structure of the individual model design feature intself, according to the model characteristic of the CAD software, automatically recognizes the outline ring outside the cross section in the sketch map of design feature of this model, matches the feature rule and its peculiarity and identifies each concrete machining feature. This may effectually prevents the problems about feature recombination and feature. This way effectually prevents the problems about feature recombination and feature interaction recongnition. Thus that implemented that automatic recognition of machining feature of complex box part and the automatic information transition of CAD/CAPP system.
Keywords:feature recognition;feature interaction;information extraction