针对当前机械变速压力机运行效率偏低、抗干扰能力较差等问题,提出一种基于TMS320LF2407A的机械变速压力机电液伺服自动控制系统设计方法;对于系统的硬件部分,PLC对压力信号进行采集,电源模块采用稳压器完成12～5 V的DC/DC转化;利用晶振当作振荡源与闭合回路结合完成时钟模块的设计;系统的软件部分根据位置式的PID控制算法对机械变速压力机执行元件进行控制,完成软件的设计;实验证明,所设计的控制系统稳定性好,具有很好的抗干扰能力.%In view of the low efficiency and poor anti-interference ability of the mechanical transmission press,a design method of electro hydraulic servo automatic control system for mechanical transmission pressure based on TMS320LF2407A is presented.For the hardware part of the system,PLC collects the pressure signal,and the power module adopts the voltage regulator to complete the DC/DC conversion of 12～5 V.The oscillator is used as the oscillation source and the closed loop is combined to complete the design of the clock module.The software part of the system controls the actuating element of the mechanical variable speed press according to the position type PID control algorithm,and completes the design of the software.The experimental results show that the designed control system has good stability and good anti-interference ability.
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