数字化采集数据的模型特征提取

Extraction of Model Feature in Digital Processing Software

数字化处理软件生成的ＣＮＣ代码应用于数字化加工时，存在着刀具轨迹不一致的问题．根据进给位置和模型边界的特征，运用转角法识别原理，识别出模型的边界，以剔除掉数字化采集数据中模型边界以外的数据．该方法对采集的数据进行离线处理，可显著提高刀具轨迹的效率和数字化加工效率．实验表明，该方法效果良好。

The question“tool path does not correspond to real machining path”is found when CNC code generated from data which is acquired as WF copying is used to degitizing machining.This paper based on model feature and ZJ method can successfully get the border data of model and successfully delete unuseful data.This methodcan obviously increase the efficiency of tool path and digital machining.The effect is good in the test.It is worthy of popularizing in digital manufacturing.