双螺杆压缩机端盖加工工艺规程规划的蚁群算法研究∗

摘要

Double screw compressor have excellent stability performance and have been used widely in the mining industry. To meet the requirements of production capacity, using ant colony algorithm to planning it’ s machining process procedure by study processing technology of the end cover. In order to guarantee the feasibility of processing scheme, apply the processing constraint and introduce the new“or” type constraint. Finally the algorithm structure of ant colony algorithm is completed by implement the process element sifting module and two heuristic methods in process select module. The key machining process element is find out by study the assembly process of this product. Then the process constraint model of end cover is established and input into the ACO algorithm. So the computer aided process planning is completed. And the effective-ness of this algorithm is proved by contract with the human experience machining plan.%双螺杆压缩机以其优良的运行平稳性在矿用工业中被推广应用，为满足产能要求，在研究其端盖加工工艺基础上，采用蚁群算法研究双螺杆压缩机端盖加工工艺规程规划方案。研究了实际加工情况，引入工艺约束关系矩阵并提出“或”型工艺约束，针对此复杂问题编制了加工要素选择模块，并采用启发式要素选择规则，改进了蚁群算法的结构。在充分研究端盖-腔体装配过程后，锁定了端盖的关键加工要素。在此基础上编制了零件的工艺约束模型，代入算法求解，实现了加工工艺规程规划的自动化，并通过与人为经验工艺设计进行对比，说明了此算法的有效性并具有更高的经济性。