Design Of Special Coil Winding Machine Control System For A Missile Locator

The locator is an important component of missile guide head,which plays a key role in the automatic target finding,target tracking and guidance.Biter coil is one of the important parts of biter,including reference coil,modulation coil,φ Angle coil,steady coil and precessing coil coil components,the winding quality of these coils largely determines the comprehensive performance of biter.At present,most of the coil winding of the indexer still depends on manual winding,which has the problems of long winding time,low efficiency and low yield.The coil of positioner needs special winding process,which is difficult to be wound by conventional winding equipment.Therefore,a special winding system for positioner coil is designed and developed,which is used for winding precession coil and φ Angle coil of positioner.This paper first designs the overall scheme of the winding system,which is divided into winding system,tension control system and electronic control system.Among them,the winding and arranging system completes the winding and arranging functions;Tension control system used to stabilize the tension of enameled wire;The electronic control system realizes the automation of winding.Then,the mechanical structure and control algorithm of winding and arranging system are designed in detail.A routing control algorithm based on winding Angle is proposed,which can express complex winding process through routing equation and transition equation.Then,aiming at the difficulty of making effective tension control strategy due to the nonlinear characteristics of traditional tension control system,a mechanical structure of tension control system combining Angle sensor and hysteresis brake is designed.On the one hand,this design enables the Angle sensor to measure tension with good linearity,which eliminates the need for high-cost tension sensor and simplifies the mechanical structure.On the other hand,the linear mathematical model of tension control based on hysteresis brake can be established and the tension control algorithm can be designed easily.Aiming at the poor effect of model open-loop tension control,a fuzzy control PID algorithm using friction coefficient to set PID parameters was designed.Simulation results show that the algorithm has good control effect.Finally,the electronic control system is designed,including STM32 chip as the core of the hardware circuit,winding wire control program,tension control program and the host COMPUTER GUI program.In order to verify the practical effect of the design,a prototype of the coil winding system was developed,and the measurement calibration,performance testing and actual winding effect of the prototype were carried out.The results show that a good winding effect is achieved when winding regular coils,but some manual adjustment is needed when winding irregular coils because of the difficulty of winding.Compared with the traditional manual winding method,the automatic winding is realized,the winding time is shortened,and the coil quality is improved.Through further research,it is expected to achieve full automation.