扭簧比较仪的应用分析

Application and Analysis of Torsion Spring Comparer

介绍一种采用轮向拉伸量与回扭角度在一定范围内呈线性关系的扭簧丝作为主要放大元件的，并能使测量杆直线位移转换成指针角位移的机械式计量仪器。它利用比较测量法测量相应的工件尺寸精度，测量高精度工件的几何形状偏差及零件相互间的位置，特别适用于检定工件的跳动量。文章还介绍了仪器的工作原理，传动原理，并根据实际工作中发生的问题，提出了操作使用中应注意的事项。使用说明，该仪器具有结构简单，传动比较大，传动中没有摩擦和间隙，因此，不仅提高了精度和灵敏度，而且制造容易，成本低。

篢orsion spring coInParer is a mechanical metering eqUiPment and uses a torsion spring wire as main amPlification element. The allal tension of the spring is proportional to the torsion ede in linear rmge. The comparer conveItS the linear displacement of the metering nd into the index angle displacement. The comparer is used to measure the sbe of workpiece with higher precision by comparison methdd. It is also used as an indicator of measuring shape deviahon of highprecision wothpiece for other metering equiPment. It is Particulary suitable for edning the skip derivation of the workpiece. Based on the analysis of the problems encountered in actUal work, this paper gives out som reSPOnding sovingmetheds and consideraions.