在设备维修、改装中，经常需要加工一些带有外螺纹的小零件。在加工这些零件时，往往需要夹持螺纹进行加工。这样极易将螺纹卡伤而影响使用性能。用铜皮包裹螺纹处进行夹紧，一是工时利用率较低，二是定位精度较差，效果不太理想。为此，我们设计了一种夹持螺纹的简易装置。(1) In equipment maintenance, modification, often need to process some small parts with external thread. In the processing of these parts, often need to hold the thread for processing. This will easily threaten the card injury and affect the use of performance. Copper thread wrapping thread at the clamp, first, lower utilization of working hours, and second, poor positioning accuracy, the effect is not ideal. To this end, we designed a simple device to hold the thread. (1)