Through the analysis of the development of agricultural machinery, relevant links of NC machining based on STEP-NC was studied.By the way of secondary development on NX software, the STEP-NC file was formed, and CNC mode and open CNC System based on STEPNC were expounded. Finally, the influence of STEP-NC for CNC manufacturing technology of Agricultural machinery was discussed.%通过分析农业机械的发展,对以STEP-Nc为基础的数控加工相关环节进行了研究.通过对NX软件二次开发的方法来生成STEP.NC文件,并分析了基于STEP-NC的数控制造系统模式以及开放式数控系统结构,最后分析了STEP-NC对农业机械数控制造的影响作用.
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