大型复杂薄壁壳体数控仿真加工技术研究  

Research on NC simulation machining technology of large and complex thin-walled shell

作　　者：吴龙梅 康权 WU Longmei;KANG Quan(Geely College,Chengdu 641400,China;Chengdu Runbo Technology Co.,Ltd.,Chengdu 610100,China)

机构地区：[1]吉利学院,成都641400 [2]成都润博科技有限公司,成都610100

出　　处：《现代制造工程》2023年第2期64-69,共6页Modern Manufacturing Engineering

摘　　要：大型复杂薄壁壳体的结构复杂、精度要求高且加工效率低,其加工难度大,程序复杂;在数控加工过程中无法人为判断数控程序的正确性,加工易出现碰撞、干涉和超程等问题。针对该问题,对大型复杂薄壁壳体数控仿真加工技术进行了研究,通过三维软件建立了某运载火箭三级尾段数控铣削加工所采用的GSF-5032龙门五轴机床实测尺寸模型,并在数控虚拟仿真加工软件VERICUT中构建该机床的虚拟仿真加工模型,对该三级尾段进行仿真加工,验证了数控程序的正确性,消除了加工过程中的碰撞、干涉和超程等问题,从而减少了试切时间,缩短了开发周期,提高了产品生产效率。最后通过实际加工,有效地验证了该机床的虚拟仿真加工模型以及数控程序的正确性和有效性。Large and complex thin-walled shells have complex structures, high precision requirements, and low processing efficiency, they are difficult to process and have complex programs.During the NC machining process, it is impossible to artificial judge the correctness of the NC program, and prone to collision, interference, overtravel and other issues during machining.Aiming at this problem, the NC simulation processing technology of the large and complex thin-walled shell was researched, and the measured size model of GSF-5032 gantry five-axis machine tool used in the NC milling of the third-stage tail section of a launch vehicle was established by 3D software, and the NC virtual simulation processing software was used, the virtual simulation processing model of the machine tool was constructed in VERICUT software, and the simulation processing of the three-stage tail section was carried out, which verifies the correctness of the NC program and eliminates the problems of collision, interference and overtravel during machining, there by reducing trial cutting time and shortening development cycle, improving the product production efficiency. Finally, through the actual processing, the correctness and validity of the virtual simulation processing model of the machine tool and NC program are verified effectively.

关 键 词：薄壁壳体 数控程序 VERICUT软件 虚拟机床 仿真加工 

分 类 号：TG547[金属学及工艺—金属切削加工及机床]