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工件的三相似原则是通用可调整夹具的基础理论。工件的结构要素相似、工艺要素相似不仅是工件成组的基本依据,并且是决定通用可调整夹具结构形式的主要因素,而工件之尺寸相似却是确定通用可调整夹具的总体尺寸与其所加工工件之尺寸比例适中的基本因素。试以图1a、b、c、d、e、f、g所示的工件为例,说明如何依据工件之三相似原则实现工件成组:说明三相似原则能够指导通
The tri-principle of the workpiece is the basic theory of a universal adjustable fixture. The structural elements of the workpiece are similar. The similarities of the technological elements are not only the basic basis for the grouping of the workpieces, but also the main factor that determines the structure of the universal adjustable fixture. The similar size of the workpieces determines the overall size of the universal adjustable fixture and the workpieces to be machined The size of the proportion of the basic factors. Let us take the workpiece shown in Figure 1a, b, c, d, e, f and g as an example to illustrate how to form the workpiece according to the similar principle of the three parts: Explain that the three similar principles can guide