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由于气动控制具有许多独特的优点,所以它在自动化领域里占有相当重要的地位,可以与电子、液压自动控制并驾齐驱。气动控制的方法虽然很多,但就其元件来分目前大体上可分为两类,一类是控制元件本身带有机械可动部分的,如滑阀式元件和薄膜式元件等;一类是控制元件本身不带机械可动部分的,如射流元件等。这里所介绍的橡皮膜气动自动控制就是上述第一类中的一种。它的控制方法简单,易于掌握;元件结构简单,容易制造;对气源不要求特殊处理,而且只要一种气源压力;使用较少的元件即可实现复杂控制,因此它的成本低,便于推广使用。洛阳东方红拖拉机厂和洛阳轴承厂应用这种控制方法改装了许多台机床,实现了单机半自动或自动化。根据他们几年来的实践经验,证明这种控制方法是可靠的,故障少,便于维护。这种控制方法目前国内在组合机床上尚未得到应用,但究竟是否适合于组合机床控制或如何控制,是值得探索的。
Pneumatic control has many unique advantages, so it occupies a very important position in the field of automation, with electronic and hydraulic automatic control side by side. Although many methods of pneumatic control, but its components can be divided into roughly two categories, one is the control element itself with a mechanically movable part, such as the spool valve element and the membrane element, etc .; one is The control element itself does not have a mechanically movable part, such as a jet element or the like. The rubber diaphragm pneumatic control introduced here is one of the first of the above. Its control method is simple and easy to grasp; the element structure is simple and easy to manufacture; the gas source does not require special treatment, and only one kind of gas source pressure; the use of fewer components can realize complicated control, so it has low cost and is convenient Promote use. Luoyang Dongfanghong tractor plant and Luoyang Bearing Factory application of this control method has been modified many machine tools to achieve a single semi-automatic or automated. Based on their years of practical experience, this control method is proven to be reliable, less troublesome and easier to maintain. At present, this control method has not been applied in the combination machine tool in our country, but whether it is suitable for the combination machine control or how to control is worth exploring.