论文部分内容阅读
为了适应机床现代化发展,除了要求机床具有重量轻、成本低,使用方便和良好的工艺可能性等一般技术经济性能外,还要求机床具有愈来愈高的加工性能。机床的加工性能包括其加工质量和切削效率两个重要方面。通常把被加工零件能达到的最高精度和最小表面粗糙度作为机床加工质量的评定值,把金属切除率或切削用量的最大极限值作为机床切削效率的评定值。机床的加工质量,不仅取决于机床的制造误差、弹性变形、热变形和磨损等因素,而且还取决于机床
In order to adapt to the modernization of the machine tool, in addition to requiring general technical and economical performance of the machine tool, such as light weight, low cost, ease of use and good processability, the machine tool is required to have higher and higher processing performance. Machine tool processing performance, including its processing quality and cutting efficiency of two important aspects. Generally, the highest precision and minimum surface roughness that can be achieved by the machined parts are taken as the evaluation value of machining quality, and the maximum limit of metal removal rate or cutting amount is taken as the evaluation value of the cutting efficiency of the machine tool. Machine tool processing quality, not only depends on the machine manufacturing error, elastic deformation, thermal deformation and wear and other factors, but also depends on the machine