Integration Of Finish Machining System Of Hole & Surface On Fuselage-Wing Joint Based On Task Dispatcher

In order to guarantee interchangeability and coordination accuracy of joining fuselage and wings, it is necessary to have finish machining for hole and facet on the fuselage-wing joints before joining. This paper relies on a project assumed by Zhejiang University, and mainly researches and explores the realization of system integration of finish machining of fuselage-wing joints based on the digital assembly and finish machining system for aircraft. First, the module of finishing maching management in Fuselage Joining and Finish Maching Main Control System is developed and integrated by applying VC++, Oracle data-base, NC machining and Detecting technology. Several key problems such as feasibility evaluating and digital method for checking of finished product are studied and analyzed deeply. Also, this paper realizes the communication between Main Control System and SINUMERIK840D NC System by conbining SIMENS SinCOM, socket and PLC technology. Finally, it realizes the automatic integration of finish machining by combining feasibility evaluating, finish machining for hole and facet on joints and checking of finished product.In chapter 1, the article's background, digital and integration technology in assembly of aircraft are expounded, then application status of NC and Detecting technology are sumed up, finally the reaserch goals and meaning and the structure of paper are presented. In chapter 2, the method of realization of finish machining for hole and facet on the fuselage-wing joints is discussed according to the positions of massive devices and general assembly process of finish machining. In chapter 3, finish machining software system integration of hole and surface on the fuselage-wing joint is discussed, and Finish Maching Auxiliary Communication System is developed by analyzing the demands of communication fuction to fulfish data transfer and communicate between Finish Maching Auxiliary Communication System and Main Control System. In chapter 4, finish machining task is devided into three task modules according to task dispatcher, and data processing and task dispatcher in finish machining are realized. In chapter 5, in order to guarantee the security of finish maching, it is to be researched on motion of fuselage platform, checking of machine tool and changing head, checking of interference between devices, and human machine interface during finish maching process. Finally, in chapter 6, summary for the whole work in this dissertation is given, and the future work is discussed.