The Remote Monitoring CNC System Of Simulation Remachining On Solid Rocket Propellant

After pouring and curing the solid rocket motor propellant, the end and the cavity plane should be trimed, so this method should be called remachining in the industry. Different from metal-cutting theory, at present the systemic theory and experimental study are very few about the cutting of solid propellant, and the interrelated news reporting is very insufficiency. At home, the cutting quantity of the remaching process which is be formulated according to the experience is short of scientific proof generally. This remachining method which used for the high-burning rate propellants and the high energy power exists blindness and fatalness.Therefore, prior to the remachining of the solid-rocket propellant, it is urgent to study and develop a kind of simulation remaching system. In this way, we can indicate the influence factor which produced in the remachining processing, at the same time obtain the secure cutting quantity. In this way, the remachining working can be guided securitily and effectively, so the country’s property damage and casualties can be avoided.This paper studies primarily the remote control CNC system which used in the plastic propellant simulation remachining system.Firstly, it chooses the structure of“PC+PMAC”and open structure numerical control system as the machine tool and the control system in the subject by introducing the advantages and property of the former and the latter. The author designs the hardware schematic diagram of the CNC system. Based on satidfying the control performance of the plastic simulation remachining system, the position control and the performance of the servosystem have been analysed and discussed particularly, also adjust the dynamics and the static performance of the federate servo unit using the PMAC and PID feedforward adjust method.Second, the PMAC motor program have been developed getting help from the powerful software functions of PMAC. Set the wire jumper of the PMAC in order to communicate with the system normally. The dynamic characteristics of the system can be adjusted and optimized on line utilizing the PID procedure execution which supplied by the PMAC. The NC programming of the simulation remaching workpiece have been designed under the circumstances of the UG NX5.Finally, according to the request of the remote monitoring CNC system, develop the remote control interface utilizing the century star congigueation software. Elaborate the method and the process of configurate the remote monitoring system on solid rocket motor for plastic propellant simulationthe whic based on centurystar. Based on analyzing the functional requirements of the system, the configuration developing and the function realization of the supervisory computer have been conducted.The research achievement has an important significance for promoting the automation level of the charging of the solid rocket propellant of our country.