【摘要】 目前我国还没有既可绘制平行投影图又可绘制中心投影图的工具,致使广大技术人员未能摆脱繁重的绘图劳动。新研制的两用绘图机,结构简单、操作方便、作图迅速准确,具有能同时绘制平行投影图和中心投影图两种功能。本文重点叙述了两用绘图机的工作原理、结构特点及参数选择,并对各有关设计进行了计算,从而得出该绘图机是一种工作可靠、适于应用推广的比较理想的绘图工具。更多还原

【Abstract】 At present, there is no machine or tool which can draw both of the center projection graph and the paralleling projection graph. So the engineers and the drawers have to do a lot of hard work. The authors have designed a multiple function drawing machine, the perspective plotter, which is both simple in structure and easy for operating and accurate for drawing. It has the function of drawing both of the center projection graph and the paralleling projection graph. This paper introduced the working principle, structure char acteristics of this plotter, and calculated some design problems. It is a very applicable and reliable tool, and can be widely used for engineering drawing.更多还原