键槽通常是用图1所示的样板检查,这种样板不能通用,也就是说,一种尺寸的键槽就需用一个与这个尺寸相对应的样板,尺寸一改变,就得另换样板,所以需用量多,消耗大。我厂技术科张琦同志针对这个缺点,研究并改进了一种万能样板,它可以测量任何尺寸的键槽。万能样板的构造如图2所示。图中1是插头,用螺钉2固定在下支柱上,下支柱5用螺钉3固定在上支柱4上。6是手柄。 Keyway is usually used in the sample shown in Figure 1 check, this model can not be universal, that is, a size of the keyway on the need to use a size corresponding to this model, the size of a change, you have to change the model, so Need to use more, expensive. In response to this shortcoming, Comrade Zhang Qi, our technical department, studied and improved a versatile template that can measure keyways of any size. The structure of the universal prototype is shown in Figure 2. Figure 1 is a plug, with screws 2 fixed to the lower pillar, the lower pillar 5 with screws 3 is fixed to the upper pillar 4. 6 is the handle.