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阐述了线性规划的基本原理和方法,并将其用于切削用量的优化。以往切削用量的选择,往往是凭操作者的经验和一些统计数据来确定,影响着生产率的进一步提高、产品质量的改善和生产成本的降低。本文以影响切削用量的主要因素,如刀具耐用度、工艺系统刚度、刀具热变形、现有机床运动参数、加工表面粗糙度等为约束条件,以基本时间表示的加工生产率为优化的目标函数,建立起切削用量优化的线性规划模型,借以探索切削用量的优化问题,并举出了切削用量优化的实例。
The basic principle and method of linear programming are expounded and used to optimize cutting quantity. In the past, the choice of cutting dosage was often determined by the operator’s experience and some statistics to influence the further improvement of productivity, the improvement of product quality and the reduction of production cost. In this paper, the main factors affecting the cutting dosage, such as tool durability, process system stiffness, tool thermal deformation, the existing machine tool motion parameters, the processing surface roughness as the constraint conditions, the basic time expressed processing productivity optimization objective function, A linear programming model for cutting optimization is established to explore the optimization of cutting parameters and an example of optimization of cutting parameters is given.