Design And Research Of Multi-function Intelligent Milling Actuator For Carbon Fiber Reinforced Plastics

With the rapid development of aerospace industry,carbon fiber reinforced plastics as a representative of new materials have been widely used.However,in the traditional drilling process of carbon fiber reinforced plastics,there are still some technical problems such as severe tool wear and difficult surface quality control,which have seriously restricted the improvement of the processing and manufacturing quality of carbon fiber reinforced plastics.Compared with traditional drilling and hole making methods,helical milling and inclined planetary milling methods effectively reduce the axial force in the cutting process,cut and cut more stable,effectively inhibit the production of machining surface tear,stratification and other defects in hole making,with more ideal hole making accuracy and surface quality.Therefore,on the basis of analyzing the cutting mechanism of inclined planetary milling and helical milling hole fiber,a multi-function intelligent milling end-effector is designed and researched.The research contents are as follows:First of all,this paper analyses the helical milling hole and inclined planetary milling machining principle of helical milling hole is established and the dip Angle milling hole locus equation of any point on the face,and analyses the helical milling holes inlet and outlet area with the Angle of milling holes of milling process,and compares the two kinds of processing mode of inward and outward region of material removal rate,combination of two kinds of single eccentric sleeve hole milling process design share of adjustment scheme,multi-functional intelligent milling actuator function principle design to provide the basis.Secondly,the mechanical structure design of intelligent milling actuator is studied.The design parameters,the overall components and the main dimensions of the multi-function intelligent milling actuator are put forward,and the structural components such as the combination adjustment mechanism,the front endpositioning mechanism and the press-foot mechanism are designed.Then,the mechatronics design of multi-function intelligent milling actuator is studied based on MCD design platform.An intelligent hole making control strategy based on the tool wear characteristics is proposed,Combined with the motion function decomposition and running state analysis of the actuator,the machining process simulation sequence under the MCD design platform is established,the simulation sequence and the model are verified based on the MCD platform,the SFC motion control program corresponding to the simulation sequence is obtained.Finally,the control technology of multi-function intelligent milling actuator is studied.The design principle and control scheme of intelligent milling actuator system are put forward.Based on the scheme of control system,the upper computer,lower computer and other hardware of the system are selected and integrated.Based on TIA platform,hardware configuration,PLC program,HMI design and joint simulation are carried out.Finally,the multi-functional intelligent milling actuator digital prototype is verified by Mechatronics simulation.