Optimization Design Of Turntable Structure For Five-axis Blade Machining Machine

Throughout the national defense strategies of all countries in the world,aeroengines are all defined as "the flower of industry and the foundation of national defense." In particular,the military’s large bypass ratio turbofan aeroengine undoubtedly symbolizes the entire country’s technological innovation capability and overall national strength..As the core component of an aero engine,the quality of the aero engine blade greatly affects or even determines the comprehensive performance of the aero engine.In view of the fact that aeroengine blades work in the combustion chambers and turbines with the worst aeronautical working conditions,it is required that the aeroengine blades must also have an accurate shape structure,extremely high surface quality and maintain excellent performance under high temperature and high pressure and strong centrifugal vibration environment The mechanical properties and precision stability of the three major characteristics;however,Hangfa blades are generally made of extremely difficult to process high-temperature alloys or titanium alloys through milling,grinding,electrical processing and grinding and other high-precision processing methods.Based on the extremely high accuracy and quality requirements of the hangfa blade machining and the extremely difficult to process high-temperature alloy or titanium alloy materials,it also proposed unprecedented accuracy and stability for its processing machine(high-end five-axis blade machining machine)In the end,it is inevitable that the turntable,which is the core component of high-end machine tools,inevitably puts forward the technical requirements that must achieve high speed,high precision,stability,and high torque at the same time as the traditional turntable.Based on a detailed comparison of the traditional three major transmission structure turntables and their improved turntables,this article relies on the team’s optimized design of the overall structure and key components of the high-end five-axis machine tool,and innovatively designed a non-standard Slotted disc spring follow-up compensation wear error mechanism and double helical gear to eliminate forward and reverse switching error mechanism as the core,and the detection closed-loop compensation system composed of high-precision angular speed encoder as the core is based on high-end five-axis blade processing machine.Turntable.So as to ensure that the turntable has the four characteristics of high speed,high precision and stability,high repeat positioning accuracy and high torque,and then perfectly cooperates with high-end five-axis blade processing machine tools to improve the processing efficiency and processing quality of the airborne blades,and ultimately perfect Satisfies the extremely high processing requirements of Hangfa blades.And focus on the two core mechanisms of the new turntable ～ non-standard slotted disc spring follow-up compensation gear wear error mechanism and double helical gear to eliminate forward and reverse switching error mechanism,using a combination of theoretical calculation,finite element analysis and experimental verification Optimize the design method to carry out technical research,and finally confirm the important parameters of the two core institutions,and finally infer the theoretical calculation system for the design of such institutions for later designers...