磨料流加工(AFM)作为一种新型光整加工技术,加工一些内部形状复杂和尺寸较小的零件时有其独特的优势.为了便于对磨料流加工工艺进行更深入的实验研究,在分析其加工特点的基础上,研发一款电液联合控制的立式微型磨料流加工机床,该机床需具有结构尺寸小,但工作压力高的特点.为了确保其工作的可靠性,根据微型磨料流机床的结构设计方案,建立其三维模型,用ANSYS WORKBENCH 软件进行整机静力学分析.据此分析结果预测微型磨料流机床工作时的变形量和应力分布情况,然后进行结构优化,并预测其承载能力,结果表明:其变形量和应力大小在安全、合理的范围之内.%As a new processing technology of finishing cut,abrasive flow machining(AFM) has unique ad-vantage when it is used to process the parts with complicated internal shape and small size. In order to do more experiments for the research of AFM technology, a vertical micro abrasive flow processing machine tool is designed based on analyzing the processing characteristics. It is controlled by electricity and hydraulic pressure. The machine tool has the characteristics of small structure size and high working pressure. In order to ensure the reliability of working process, its 3-D model is established according to the structural design scheme of micro abrasive flow machining tool. Using the software ANSYS WORKBENCH to do the statics analysis. According to the simulation results to predict the deformation and stress distribution of micro abra-sive flow machining tool and do the structure optimization and predict its carrying capacity. The result shows that the deformation and stress are in a safe and reasonable range. The research provides a theoretical and technical guarantee for the manufacture of prototype, and also provides a reference for the development of new equipment.
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