基于加工特征的缸体类零件数控程序自动生成

摘要

根据企业的产品特点和现有的制造资源,提出了一种新的缸体类的加工特征模型.通过该模型的使用,在设计数控工艺时就能根据加工特征的种类,以模块化的方式进行数控程序的生成,很好地解决了传统工艺和数控工序的集成问题.同时以加工特征为单元,采用参数化技术实现数控程序的派生式生成,在三维环境下进行动态仿真,提高了数控程序设计效率和质量,从而实现了数控程序的模块化设计,提高了数控工艺设计的柔性和自适应能力.该方法在企业的工艺自动化系统中得到了验征.%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.