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为探索提高机床静、动态特性,从而满足机械制造向着高精密化、高自动化、高效率等方向发展需求的新途径,研究了一种新的机床基础件材料——玄武岩纤维树脂混凝土(BFPC)。确定了BFPC主要性能参数,并以某数控机床铸铁床身为研究原型,设计了BFPC机床床身。应用有限元分析软件ANSYS分析原型床身和BFPC床身的静动态特性,得出了其应力-应变分布云图、前6阶模态振型图、固有频率及谐响应曲线,并将上述结果进行对比分析。结果表明,以BFPC制造机床床身可在减轻质量的同时提高床身的静、动态特性。
In order to explore a new way to improve the static and dynamic characteristics of the machine tool and to meet the demand for the development of high precision, high automation and high efficiency, a new machine tool base material, basalt fiber reinforced concrete (BFPC) . The main performance parameters of BFPC were determined. Based on a cast iron bed of a CNC machine tool, the BFPC machine bed was designed. The finite element analysis software ANSYS was used to analyze the static and dynamic characteristics of the prototype bed and the BFPC bed. The stress-strain distribution, the first six modes, the natural frequency and the harmonic response curve were obtained. The above results were obtained Comparative analysis. The results show that the BFPC manufacturing machine bed can reduce the quality of the same time improve the bed of the static and dynamic properties.