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1. 发明授权

US08998734B2 Thread forming tap 有权
标题翻译：螺纹成型龙头
公开(公告)号：US08998734B2
公开(公告)日：2015-04-07
申请号：US13379535
申请日：2009-07-07
申请人： Kentaroh Norimatsu , Takayuki Matsushita , Hironori Yamamoto
发明人： Kentaroh Norimatsu , Takayuki Matsushita , Hironori Yamamoto
IPC分类号： B23G7/02
CPC分类号： B23G7/02 , Y10T408/89
摘要： A thread forming tap has a full thread portion and a leading portion contiguous with the full thread portion and reducing in diameter toward its tip. The full thread and leading portions are provided with external thread on which lobes and recesses are alternately formed. When δ represents an angle around a tool center line toward a thread forming side, the shape of the lobe varies along a quadratic curve relative to angle δ so that relief amount increases toward inflection point angle δ. However, in a rough plastic deformation section where angle δ is greater than inflection point angle θ and exceeds the working region, the shape varies along an Archimedean curve with clearance angle α1 so that the relief amount increases linearly relative to angle δ, and a margin section is substantially zero or within a range where angle δ is less than or equal to 1°.
摘要翻译：螺纹成型丝锥具有全螺纹部分和与全螺纹部分相邻的引导部分，并且朝向其末端减小直径。全螺纹和引导部分设置有外螺纹，其上交替地形成有凸角和凹槽。当δ表示围绕工具中心线朝向螺纹形成侧的角度时，凸角的形状沿着相对于角度δ的二次曲线变化，使得释放量朝向拐点角度δ增加。然而，在角度δ大于拐点角度的粗糙塑性变形部分中; 并且超过工作区域，形状沿着具有间隙角α1的阿基米德曲线变化，使得释放量相对于角度δ线性增加，并且边缘部分基本上为零或在角度δ小于或等于1的范围内 °。

2. 发明申请

US20120107063A1 THREAD FORMING TAP 有权
标题翻译：螺纹形状
公开(公告)号：US20120107063A1
公开(公告)日：2012-05-03
申请号：US13379535
申请日：2009-07-07
申请人： Kentaroh Norimatsu , Takayuki Matsushita , Hironori Yamamoto
发明人： Kentaroh Norimatsu , Takayuki Matsushita , Hironori Yamamoto
IPC分类号： B23D77/00
CPC分类号： B23G7/02 , Y10T408/89
摘要： A thread forming tap has a full thread portion and a leading portion contiguous with the full thread portion and reducing in diameter toward its tip. The full thread and leading portions are provided with external thread on which lobes and recesses are alternately formed. When δ represents an angle around a tool center line toward a thread forming side, the shape of the lobe varies along a quadratic curve relative to angle δ so that relief amount increases toward inflection point angle θ. However, in a rough plastic deformation section where angle δ is greater than inflection point angle θ and exceeds the working region, the shape varies along an Archimedean curve with clearance angle α1 so that the relief amount increases linearly relative to angle δ, and a margin section is substantially zero or within a range where angle δ is less than or equal to 1°.
摘要翻译：螺纹成型丝锥具有全螺纹部分和与全螺纹部分相邻的引导部分，并且朝向其末端减小直径。全螺纹和引导部分设置有外螺纹，其上交替地形成有凸角和凹槽。当δ表示围绕工具中心线朝向螺纹形成侧的角度时，凸角的形状沿着相对于角度δ的二次曲线变化，使得释放量朝向拐点角度θ增加。然而，在角度δ大于拐点角度的粗糙塑性变形部分中; 并且超过工作区域，形状沿着具有间隙角α1的阿基米德曲线变化，使得释放量相对于角度δ线性增加，并且边缘部分基本上为零或在角度δ小于或等于1的范围内 °。

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