发明申请
- 专利标题： FRICTION STIR SPOT WELDING APPARATUS, FRICTION STIR SPOT WELDING METHOD, AND PERPENDICULAR-TO-PLANE DETECTION DEVICE FOR USE IN FRICTION STIR SPOT WELDING
- 专利标题（中）： 摩擦点焊焊接设备，摩擦块焊接方法，以及用于摩擦块焊接的平面到平面检测装置
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申请号： US15108347申请日： 2013-12-27
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公开(公告)号： US20160318120A1公开(公告)日： 2016-11-03
- 发明人: Hideki OKADA , Ryoji OHASHI , Satoru YAMASUMI
- 申请人： KAWASAKI JUKOGYO KABUSHIKI KAISHA
- 申请人地址： JP Kobe-shi, Hyogo
- 专利权人： KAWASAKI JUKOGYO KABUSHIKI KAISHA
- 当前专利权人： KAWASAKI JUKOGYO KABUSHIKI KAISHA
- 当前专利权人地址： JP Kobe-shi, Hyogo
- 国际申请： PCT/JP2013/007674 WO 20131227
- 主分类号： B23K20/12
- IPC分类号： B23K20/12
摘要：
A friction stir spot welding apparatus according to the present invention includes: a rotary tool; and a perpendicular-to-plane detector, which detects whether or not the rotary tool is positioned to be in a perpendicular-to-plane state relative to a joining target portion of workpieces. The perpendicular-to-plane detector measures distances to at least three measurement positions set around the joining target portion by means of, for example, position sensors. The measurement positions are set to be positioned at the vertices of a polygon on a reference plane to which forward and backward movement directions of the rotary tool are normal. The perpendicular-to-plane detector detects that the rotary tool is positioned to be in the perpendicular-to-plane state relative to the joining target portion of the workpieces if all the distances to the measurement positions are equal to each other.
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