论文部分内容阅读
1.概述数控机床的数控系统主要实现数字控制和顺序控制。数字控制主要是控制刀具的轨迹,也就是位移控制。而顺序控制部份控制辅助机械动作,它接受数控部份送来的,以二～十进制代码表示的S(主轴转速)、T(选刀、换刀)和M(辅助机能)等机械顺序动作信息。并对其进行译码。转换成与辅助机械动作对应的控制信号,使执行环节作相应的开关动作进行顺序控制。长期以来,顺序控制的逻辑功能,大部分是用
1. Overview CNC machine numerical control system mainly to achieve digital control and sequence control. Digital control is mainly to control the tool path, that is, displacement control. The sequence control part of the control of auxiliary machinery movements, which accept the CNC part sent to the two to ten decimal code represented S (spindle speed), T (election knife, tool change) and M (auxiliary function) and other mechanical order of action information. And decode it. Converted into a control signal corresponding to the auxiliary mechanical action, so that the execution of the corresponding switch action sequence control. For a long time, most of the logic functions of sequential control were used