关键词: 拉床, 主溜板, 同步驱动系统, 机电一体化仿真系统, 双轴同步控制器

Abstract: To provide the analysis method for control strategy of high precision servo broaching synchronous driving system,based on Matlab simulation software,the electromechanical integration simulation system model of main slide carriage double screw and double servo synchronous driving system of broaching machine was established,which was composed of three parts mainly included biaxial synchronous controller,permanent magnet AC servo system and mechanical drive mechanism.The part of biaxial synchronous controller comprised three working mode that was parallel,serial and cross coupling mode.The part of permanent magnet AC servo system comprised two permanent magnet AC servo drivers and two permanent magnet AC servo motors.The three-loop control structure of position,speed and current was adopted for two permanent magnet AC servo drivers.A double screw main slip board coupling mechanism was adopted for mechanical transmission.The performance of synchronization was analyzed based on simulation system model.The analysis results showed that the synchronization performance of synchronous driving system using parallel/serial control was poorer in the case of force imbalance on both sides,which was not suitable for the application in occasion required high synchronous precision.While the synchronization performance of synchronous driving system with cross feedback mode was better,which was more suitable for the application in  large tonnage high efficiency broaching machine.

Key words: broaching machine, main slide carriage, synchronous driving system, electromechanical integration simulation system, biaxial synchronous controller