A closed core rivet consists of a nail core rod and a nail body. The nail body is a tubular structure closed to the head. The rear circumference is provided with a diameter outward protruding platform used as a nail cover. The head of the nail core is fixed to the nail body. The tail of the core rod runs through the nail body and extends out of the nail cover. The outer wall of the nail body is provided with a circular groove in the circumference direction. . Because the closed core rivet of the invention is to add a ring groove on the outer wall of the common closed core rivet body, it is simple in manufacturing, with a wide riveting range, small surface pressure on the riveting joint, suitable for the connection of riveted parts and multilayer thin plates with various thickness, and has good filling performance and can be used in large scale. Holes and irregular holes fully enrich the riveted hole. It has the advantages of leakage prevention, shock proof, waterproof, and peeling off core head off. It solves the trouble caused by the selection of different specifications of core rivet in the riveting operation, and improves the working efficiency, and also compresses the stock of the warehouse.
【技术实现步骤摘要】
一种封闭型抽芯铆钉
本专利技术涉及一种抽芯铆钉,尤其涉及一种封闭型抽芯铆钉。
技术介绍
通常所使用的封闭型抽芯铆钉均由钉芯和钉体构成,这种结构的封闭型抽芯铆钉,在铆接加工时,由抽芯铆钉枪进行拉铆,且将封闭型抽芯铆钉的所述钉芯抽出,使所述的钉体端部形成鼓形状起到铆接效果。在被铆接件的铆接连接的操作过程中,往往需要根据被铆接件的厚度,来选用相配合的封闭型抽芯铆钉,进行铆接加工,被铆接件的厚度不同,选用封闭型抽芯铆钉的规格也不同。为了方便于铆接作业,就必须备有各种不同规格的抽芯铆钉,这样,不但会增加仓库的库存量,同时也会给现场铆接加工带来许多不便。
技术实现思路
为了克服现有技术中存在上述的不足,本专利技术提供一种改进的封闭型抽芯铆钉,它能有效地实现对不同厚度的被铆接件进行铆接连接,同时也能对多层薄板进行铆接连接。本专利技术解决其技术问题的技术方案是:一种封闭型抽芯铆钉,包括钉芯杆和钉体,所述的钉体为头部封闭的管状结构,其尾部周向设有用作钉盖的径向外凸台,所述钉芯杆的头部固定于钉体内,所述钉芯杆的尾部贯穿所述的钉体并伸出在所述的钉盖之外,所述钉体的外壁上沿圆周方向设有环形凹槽。所述环形凹槽的槽数可以为1~4条,所述的环形凹槽的宽度一般为0.5~3mm,所述的环形凹槽之间的间距一般为2.2~6mm。本专利技术在使用时,钉体从单边插入被铆接孔内,进行铆接时,经专用工具铆枪抽动钉芯杆,使钉体上没有钉盖的一端在钉芯头作用下变形成为盲铆头,钉体的外壁上沿圆周方向有1条或1条以上的环形凹槽,这些环形凹槽将在封闭型抽芯铆钉使用使得钉体膨胀有规则的形成2个或2个以上的鼓,在被铆接孔 ...
【技术保护点】
一种封闭型抽芯铆钉,包括钉芯杆和钉体,所述的钉体为头部封闭的管状结构,其尾部周向设有用作钉盖的径向外凸台,所述钉芯杆的头部固定于钉体内,所述钉芯杆的尾部贯穿所述的钉体并伸出在所述的钉盖之外,其特征在于:所述钉体的外壁上沿圆周方向设有环形凹槽。
【技术特征摘要】
1.一种封闭型抽芯铆钉,包括钉芯杆和钉体,所述的钉体为头部封闭的管状结构,其尾部周向设有用作钉盖的径向外凸台,所述钉芯杆的头部固定于钉体内,所述钉芯杆的尾部贯穿所述的钉体并伸出在所述的钉盖之外,其特征在于:所述钉体的外壁上沿圆周方向设有环形凹槽。2.按照权利要...
还没有人留言评论。发表了对其他浏览者有用的留言会获得科技券。