论文部分内容阅读
日常划线所用的高度尺,价格比较昂贵,一般小型工厂使用这种工具很不经济。现在介绍一种可调整的划针盘见附图。这种划针盘构造简单,使用方便,并且可以提高划线的准确度。附图上的1是划针盘立柱,尾部有螺纹(方牙、尖牙均可),并有一键槽。2是螺母,外圆圆周上刻有度线,刻度线的多少是根据立柱和螺母的螺距大小和使用时要求的精度确定的。3是销子,用来连接螺母2和底座4。5是螺钉;用
The daily ruler used by the height ruler, the price is more expensive, generally small factories using this tool is not economical. Now introduce an adjustable needle dial see the accompanying drawings. This construction of the dial is simple, easy to use, and can improve the accuracy of scribing. Figure 1 is a dial plate column, the tail of the thread (square teeth, canine can be), and a keyway. 2 is a nut, engraved with a circle on the circumference of the circle, the number of ticks is based on the pitch and size of the column and nut and the accuracy of the use of the time required to determine. 3 is the pin, used to connect the nut 2 and the base 4.5 is a screw;