CAJ | 학술논문

半精加工是数控加工常用的工序，目前数控自动编程系统中半精加工特征识别困难，工艺参数需要交互完成。利用截面法获得零件模型的截面轮廓，识别截面轮廓的内凹部分的最小内R角和最小槽间距，进而根据该尺寸提取出相应的半精加工参数，完成半精加工特征的识别。针对电极编程的实验结果表明，该识别算法对于中等复杂程度零件的加工所得结果正确率超过80%，极大提升了数控自动编程的效率。
반정가공시수공가공상용적공서，목전수공자동편정계통중반정가공특정식별곤난，공예삼수수요교호완성。이용절면법획득령건모형적절면륜곽，식별절면륜곽적내요부분적최소내R각화최소조간거，진이근거해척촌제취출상응적반정가공삼수，완성반정가공특정적식별。침대전겁편정적실험결과표명，해식별산법대우중등복잡정도령건적가공소득결과정학솔초과80%，겁대제승료수공자동편정적효솔。
Semifinishing is a common process in NC machining. Currently it is difficult to achieve the feature identification of semifinishing in automatic NC programming system;and the process parameters need interaction to obtain. In this study, the method of sec-tions was used to gain the section profile of part model and to identify the smallest interi-or angle R and the minimum groove spacing of inner concave part of the section profile. And then the corresponding semifinishing parameters were extracted to complete the identi-fication of semifinishing features. The experimental results show that the accuracy of the identification algorithm for moderately complex parts is more than 80% which greatly im-prove the efficiency of automatic NC programming.