关键词: 公差优化, 离散化成本&mdash, 公差模型, 多目标优化, 人工蜂群算法

Abstract: Aiming at the current situation of CNC in the factory processing,the original tolerance model based on ordinary machine tools was improved,and a multi-objective optimization model of tolerance was proposed.By considering the machining cost,tolerance sensitivity and quality loss,a multi-objective optimization model of tolerance based on discretized cost-tolerance model and Differential Evolution- Global Artificial Bee Colony (DE-GABC) algorithm was established with constraints of assembly function and processing capacity.Through the example of a key knitting machine component,the optimal solutions of tolerance were obtained quickly with the proposed optimization model,which could reduce the cost and improve the quality of the products,and the validity of the proposed model was verified.

Key words: tolerance optimization, discretized cost-tolerance model, multi-objective optimization, artificial bee colony algorithm