Automatic generation of NC program for cylinder-type parts based on machining features

According to the characteristic of products and the manufacturing resources in some enterprise,a new type of cylinder block machining feature model is proposed.Through the use of the model in the design process,the CNC program is generated by modular approach according to CNC machining features.CNC machining feature classification base process design method is a good solution to the integration issues of the traditional processes and CNC processes.With the machining feature as unit,parametric programming technique is applied to the NC code generation as well as in three-dimensional environment for dynamic simulation,which improves the efficiency of the CNC program design and quality,realizes the modular design of the CNC program and improves the NC process design flexibility and adaptive capacity.The proposed scheme is practically demonstrated by the enterprise system.