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一、前言顺序控制方式是机床自动循环中应用得很广泛的一种控制技术,它以预先规定的条件或时间为依据,按规定的动作次序顺序地进行工作。因此,对机床来说,顺序控制是指机床的加工过程按预先规定的逻辑顺序和条件进行工作的一种控制方式。用于顺序控制的自动化装置,一般可以分为四类:继电器—接触器控制系统;分离元件;无触点逻辑控制系统;顺序控制器以及电子计算机
First, the preamble sequence control mode is a widely used automatic cycle machine control technology, which is based on pre-specified conditions or time, in accordance with the provisions of the sequence of actions to work. Therefore, for machine tools, sequential control refers to the machining process of the machine tool according to a predetermined sequence of logic and conditions to work a control method. Automation devices for sequential control generally fall into four categories: relay-contactor control systems; discrete components; contactless logic control systems; sequence controllers and electronic computers