自动化车床管理的仿真及优化设计

The Simulation and Optimal Design About the Management of Automotic Lathe

该文通过对自动化车床 10 0次刀具故障的记录进行数理统计分析 ,研究了自动化车床连续加工单一零件时刀具的检测及更换模型。首先利用概率大样本场合的D检验方法证明了刀具的故障发生规律服从正态分布 ,继而求出系统工序的寿命分布函数 ,列出以零件单位期望损失为目标 ,关于检测间隔和刀具定期更换间隔为变量的的优化模型 ,最后利用计算机进行列举比较求解 ,从而得出取得最大经济效益的系统工序的最优检测间隔以及最优刀具更换策略。

Through statistical analysis of more than 100 times breakdown of cutting tool on the automatic machine tool, the checking and replacing model has been studied for cutting tool to machine only one part continuously. In this paper, by using of the D inspection method for the large-scale sample situation in the probability theory, it has been proved that the occurring law of cutting tool's breakdown accords with the normal distribution. After figuring out the life-span distribution function of the system process, Optimal model has been obtained in which the unit expected loss of the qualified part is taken as objective and the checking interval as well as the regular replacement interval for cutting tool are variables. By means of enumeration and comparison methods to look for the solution on the microcomputer,the optimum checking interval and the optimum replacing strategy for the cutting tool have been given which could bring out the optimal economic profit in the system process.