我设计了一种弹性环式的丝锥保护装置,用在机床上对零件进行攻丝加工。它较剪切保护装置、钢球弹簧、保护装置及摩擦式保护装置有更多的优点,经现场使用,效果良好。现介绍如下。 丝锥保护装置结构如图所示。它由丝锥1、衬套2、弹性环3、螺栓4、V形块5、弹簧6及锥套7组成。螺栓4通过螺纹固定在弹性环3上,并推动V形块5牢固地夹住丝锥1的尾部方头部分。衬套2一方面用来使丝锥准确定位;另一方面可更换以适应不同规格的丝锥。 丝锥保护装置利用弹性环3的弹性变形力的大 I designed a flexible ring-type tap protection device for tapping parts on a machine tool. It has more advantages than shearing protection device, steel ball spring, protection device and friction protection device, and has good effect after field use. Now introduced as follows. Taps protection device structure as shown. The utility model is composed of a tap 1, a bushing 2, an elastic ring 3, a bolt 4, a V-shaped block 5, a spring 6 and a conical sleeve 7. The bolt 4 is screwed on the elastic ring 3, and the V-shaped block 5 is pushed to firmly clamp the tail square head of the tap 1. On the one hand, the bushing 2 serves to position the tap accurately; on the other hand, the tap can be changed to suit different specifications. The tap protector utilizes the large elastic deformation force of the elastic ring 3