基本信息:
- 专利标题： 使用了液压成形的穿孔方法、穿孔装置以及液压成形加工部件和构造体
- 专利标题（英）：Punching method and punching device employing hydro-form and hydro-formed part and structure body
- 申请号：CN200780039787.0 申请日：2007-10-26
- 公开(公告)号：CN101528378A 公开(公告)日：2009-09-09
- 发明人： 水村正昭 , 佐藤浩一 , 栗山幸久
- 申请人： 新日本制铁株式会社
- 申请人地址： 日本东京都
- 专利权人： 新日本制铁株式会社
- 当前专利权人： 日本制铁株式会社
- 当前专利权人地址： 日本东京都
- 代理机构： 永新专利商标代理有限公司
- 代理人： 许玉顺; 胡建新
- 优先权： 293158/2006 2006.10.27 JP
- 国际申请： PCT/JP2007/071360 2007.10.26
- 国际公布： WO2008/050911 JA 2008.05.02
- 进入国家日期： 2009-04-24
- 主分类号： B21D39/00
- IPC分类号： B21D39/00 ; B21D28/10 ; B21D26/02
In a punching method also applicable to a thin hydro-form molding, a short tube member is eliminated when a nut for tightening a bolt is fixed to a hydro-form molding, the degree of difficulty of hydro-form molding does not rise when a nut is fixed, and the nut is lengthened so that sufficient strength can be assured when the bolt is tightened. A metal pipe is inserted into a split die with a punch which is movable perpendicularly or obliquely to the pipe axis, has a thinner diameter at the distal end than at the middle portion and is provided, on the periphery of the distal end, with nuts having an inside diameter larger than the outside diameter at the distal end but smaller than the outside diameter at the middle portion. After hydro-form molding is performed, the punch is advanced anda portion of the hydro-form molding is punched and then the nut is buried in the metal pipe while the nut is pushed at the middle portion arranged in the rear of the nut.
公开/授权文献:
- CN101528378B 使用了液压成形的穿孔方法、穿孔装置以及液压成形加工部件和构造体 公开/授权日：2012-12-26
IPC结构图谱:
| B | 作业；运输 |
| --B21 | 基本上无切削的金属机械加工；金属冲压 |
| ----B21D | 金属板或管、棒或型材的基本无切削加工或处理；冲压 |
| ------B21D39/00 | 为了连接产品或部件的程序的应用，如不同于镀敷的金属板的包覆；扩管器 |