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机床程序回路设计以往主要凭经验。近年来开始应用逻辑设计方法,在弗莱曼,A.D.等人[1]—[11]的著作中论述了一般的理论。但由于机床程序回路中存在较多的输入、输出信号,这些一般理论如象作图法[7]或列表程序[8]、[10]很难适用。 本文荐用特征变量法,能有效地解决这个问题。作者曾于1975及1978年分别用于自动生产线和液压试验设备的设计中。为简化起见,该方法在本文中用继电器回路为例进行讨论,但同样可适用于其他逻辑元件的回路,有关这方面的详细介绍,可参看[12]。
Machine tool circuit design in the past mainly by experience. In recent years, the logic design method has been applied and the general theory has been discussed in the works of Freiman, A.D. et al. [1] - [11]. However, due to the large number of input and output signals in the machine program loop, these general theories such as the mapping method [7] or the list program [8], [10] are difficult to apply. This article recommends the use of eigenvalue method, which can effectively solve this problem. The author was used in the design of automatic production lines and hydraulic test equipment in 1975 and 1978, respectively. For the sake of simplification, this method is discussed in this article with an example of a relay loop. However, the same applies to the loops of other logic elements. For a detailed description of this method, see [12].