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近年来,电液自动控制机床日趋普遍,但控制电器仍比较落后,多选用普通的继电器,此种电路用于程序较多的机床,其电器箱体积庞大,布线复杂,触点繁多,故障率将相应增加。小钻头自动铣床属于小型机床,但其运动程序较复杂,如果仍沿用这种控制电路,则上述缺点表现更为突出,予计其电器柜体积甚至比机床本身还要大,机床布局困难,分散而且零乱,不便于操作管理,且增加了设备占地面积。为此,完全有必要另选体积小,可靠性高的控制器。应用集成单元组成的逻辑式顺序控制器,
In recent years, electro-hydraulic automatic control machine tools are increasingly common, but the control of electrical appliances is still relatively backward, and more use of ordinary relays, such circuits for more machine tools, the electrical box bulky, complicated wiring, contacts, failure rate Will increase accordingly. Small drill automatic milling machine is a small machine, but the motion program is more complex, if still use this control circuit, the above shortcomings more prominent, the expected volume of its electrical cabinet even larger than the machine itself, machine layout difficult, scattered And messy, inconvenient for operation and management, and increased equipment footprint. For this reason, it is absolutely necessary to choose a controller of small size and high reliability. Application of integrated unit composed of logic sequence controller,