【摘要】 提出了一种离线的刀具寿命预测管理系统,该系统集刀具寿命预测-评价-管理三大功能于一体。以刀具后刀面磨损量作为刀具寿命磨钝标准,以扩展的泰勒刀具寿命公式为理论基础,考虑机床刚度、刀具几何参数、零件特征、切削参数等因素对刀具寿命的影响,建立了刀具寿命回归模型。运用方差分析方法,对刀具寿命预测模型的拟合精度、预测精度及输入变量的显著性进行了评价。刀具寿命管理模块既可以浏览、查询、编辑刀具寿命相关信息,还可以刀具寿命管理文件,向刀具寿命预测和评价模块提供基础数据。更多还原

【Abstract】 An off-line tool-life prediction and management system is defined, which is an integrated system containing three functional modules: tool-life prediction module, tool-life estimation module and tool-life management module. Based on expanded Taylor’s tool-life equation and flank wear, the multi-linear regression model is developed in terms with the rigidity of machine tool, tool geometries, component properties and machining parameters. The variance analysis is applied to estimate the significances of independent input variables, the adequacy and the predictive precision of the regression model. The related informations about tool-life can be browsed, searched and edited in the tool-life management module, as well as the basic data can be provided to the tool-life prediction and estimation modules.更多还原