Research On Influencing Factors And Servo Control Optimization Of Passive Jack Of Automatic Filler

As an important part of the intelligent processing system for spectroscopic experimental samples,the ore powder filling instrument can realize the automatic filling of mineral samples in emission spectrum samples,which improves the preprocessing efficiency of spectroscopic experimental samples and reduces the labor intensity of the experimenters.However,when the automatic filling instrument performs the key process of filling graphite samples with graphite electrodes,due to the influence of processing errors and the lack of control methods,the quality of the graphite electrode samples completed by the filler cannot meet the standards for spectral analysis.The filler assembly process of the filler is analyzed.The influencing factors of the passive and flexible assembly process of the filler are analyzed.For the filler force servo drive system,an intelligent control method is introduced to optimize the parameters of the filler force servo drive system and improve the quality of sample production.The specific research content is as follows:Firstly,the influencing factors of the passive jack operation of the automatic filler are studied.By establishing the geometric model of the contact state of the shaft hole assembly of the stuffing instrument,a calculation method for the limit deflection angle of the shaft parts in the passive jack is proposed,and the influencing factors of the limit deflection angle are analyzed.Through the simulation,the mapping relationship between the length,chamfer size and friction coefficient of the assembled parts and the limit deflection angle is obtained.It provides a theoretical basis for the calculation of the limit deflection angle in the passive compliant assembly of shaft parts and improving the success rate of the assembly jack.Secondly,the optimization research of the packing force control system of the automatic packing instrument.Through the analysis of the filling process of the automatic filling instrument,a filling force-position fuzzy control method based on torque limiting in speed control mode is proposed.Then,a dynamic model was established for the servo control system of packing force,and its dynamic characteristics were analyzed.Under the constraint of ensuring the dynamic performance parameters of the filling force control system,the PID parameters of the filling force servo control system are set through MATLAB simulation software,and the obtained parameters are input into the filling force servo drive control system to perform the filling operation,and the system is verified Dynamic performance.Finally,the realization and experimental analysis of the automatic filler system.By designing the software and hardware of the automatic filler instrument system,an experimental prototype of the automatic filler instrument was developed,and the verification experiments of the limit deflection angle and the filler experiment were carried out on the experimental prototype,which verified the correctness of the theoretical analysis and simulation results.Finally,the reliability and efficiency experiments were carried out,and the overall optimization of the automatic filler system was carried out.