内拉铆螺母就是在薄壁封闭工件表面,需要连接另一零件而设计的。在使用过程中,发现它有着广泛的用途。内拉铆螺母的结构如图1所示。使用时,将拉铆螺母1与拉杆2的螺纹联接好,一同装入工件3的预制孔中。拉铆螺母的端面A顶在支座4上,向B向拉动拉杆,使位于管内的螺母外圆的薄壁部分产生变形,将管壁压在端面与变形部位中间。拆下拉杆,以备再用。一个内螺纹件就 Rivet nut is in the thin-walled closed workpiece surface, the need to connect another part of the design. In use, found it has a wide range of uses. Inside the rivet nut structure shown in Figure 1. When used, the rivet nut 1 and the rod 2 threaded connection, together with the workpiece 3 prefabricated hole. Rivet nut A end of the top of the bearing 4, pull the pull rod B, so that the outer wall of the nut in the thin part of the outer wall deformation, the wall pressure in the end face and deformation of the middle. Remove the lever for reuse. An internal thread on the pieces