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1. 发明申请

US20090090156A1 MEMBER HAVING A CHAMFERED THROUGH HOLE AND MANUFACTURING METHOD OF THE SAME 有权
标题翻译：具有通孔的成员和其制造方法
公开(公告)号：US20090090156A1
公开(公告)日：2009-04-09
申请号：US12238050
申请日：2008-09-25
申请人： Masaki NAKAJIMA , Hideyuki Nagai , Kazushi Nagashima , Ariyoshi Terao
发明人： Masaki NAKAJIMA , Hideyuki Nagai , Kazushi Nagashima , Ariyoshi Terao
IPC分类号： B21D28/24 , B21D28/34
CPC分类号： B21D28/26 , B21D28/16 , B21D28/28
摘要： A method of forming a chamfered through hole having a chamfered portion at each end thereof by: forming a prepared hole in a plate-like portion; forming a first chamfered portion by driving a first punch; forming a second chamfered portion by driving a second punch, which has a second tapered surface and a generally columnar central pressing portion protruding from the center of the second tapered surface and having an annular corner at a tip thereof, and thereby forming the second chamfered portion and a central recess recessed axially inward; and punching out an unnecessary portion protruding radially inward of the prepared hole by using a finishing punch having an outer diameter equal to or smaller than that of the corner of the central pressing portion. The punching out the unnecessary portion is performed by punching from the first chamfered portion toward the second chamfered portion using the finishing punch.
摘要翻译：一种在其两端形成有倒角部分的倒角通孔的方法，其特征在于，在板状部分形成预制孔; 通过驱动第一冲头形成第一倒角部分; 通过驱动第二冲头形成第二倒角部分，所述第二冲头具有第二锥形表面和从第二锥形表面的中心突出并且在其尖端处具有环形角的大致圆柱形的中心挤压部分，从而形成第二倒角部分以及轴向向内凹入的中心凹部; 并且通过使用具有等于或小于中心按压部分的角度的外径的精加工冲头，冲出预定孔的径向向内突出的不必要部分。通过使用精整冲头从第一倒角部向第二倒角部冲压来进行冲压不需要的部分。

2. 发明申请

US20090084154A1 SPLINE MEMBER MANUFACTURING APPARATUS AND MANUFACTURING METHOD 有权
标题翻译：线材制造设备和制造方法
公开(公告)号：US20090084154A1
公开(公告)日：2009-04-02
申请号：US12237873
申请日：2008-09-25
申请人： Masaki Nakajima , Hideyuki Nagai , Kazushi Nagashima , Ariyoshi Terao
发明人： Masaki Nakajima , Hideyuki Nagai , Kazushi Nagashima , Ariyoshi Terao
IPC分类号： B21D37/08 , B21D53/88 , F16H55/02
CPC分类号： B21K1/762 , F16H57/082 , Y10T29/49291
摘要： A spline member manufacturing apparatus includes a shaving punch, a shaving die, a spline punch, and a stripper. The stripper supports a first surface of a base plate portion and an outer circumferential surface of a boss portion. The shaving punch is advanced relatively, while a material and the stripper are being pressed so that cutout portions are formed in an outer circumference portion of the base plate portion by the shaving punch and the shaving die. The shaving punch is further advanced relatively while the outer circumferential surface of the base plate portion is held by the shaving die, so that a spline portion is formed by inserting the spline punch along the inner circumferential surface of the boss portion.
摘要翻译：花键构件制造装置包括剃须刀，剃削刀片，花键冲头和剥离器。剥离器支撑基板部分的第一表面和凸台部分的外周表面。剃须冲头相对地推进，同时材料和剥离器被压制，使得切口部分通过剃刮冲头和剃须刀片形成在基板部分的外周部分中。剃须冲头相对地进一步升高，同时基板部分的外周面由剃削模具保持，从而通过沿着凸台部分的内圆周表面插入花键冲压件形成花键部分。

3. 发明授权

US08136380B2 Spline member manufacturing apparatus and manufacturing method 有权
标题翻译：花键构件制造装置及制造方法
公开(公告)号：US08136380B2
公开(公告)日：2012-03-20
申请号：US12237873
申请日：2008-09-25
申请人： Masaki Nakajima , Hideyuki Nagai , Kazushi Nagashima , Ariyoshi Terao
发明人： Masaki Nakajima , Hideyuki Nagai , Kazushi Nagashima , Ariyoshi Terao
IPC分类号： B21J13/00
CPC分类号： B21K1/762 , F16H57/082 , Y10T29/49291
摘要： A spline member manufacturing apparatus includes a shaving punch, a shaving die, a spline punch, and a stripper. The stripper supports a first surface of a base plate portion and an outer circumferential surface of a boss portion. The shaving punch is advanced relatively, while a material and the stripper are being pressed so that cutout portions are formed in an outer circumference portion of the base plate portion by the shaving punch and the shaving die. The shaving punch is further advanced relatively while the outer circumferential surface of the base plate portion is held by the shaving die, so that a spline portion is formed by inserting the spline punch along the inner circumferential surface of the boss portion.
摘要翻译：花键构件制造装置包括剃须刀，剃削刀片，花键冲头和剥离器。剥离器支撑基板部分的第一表面和凸台部分的外周表面。剃须冲头相对地推进，同时材料和剥离器被压制，使得切口部分通过剃刮冲头和剃削模具形成在基板部分的外周部分中。剃须冲头相对地进一步升高，同时基板部分的外周面由剃削模具保持，从而通过沿着凸台部分的内圆周表面插入花键冲压件形成花键部分。

4. 发明授权

US07698924B2 Member having a chamfered through hole and manufacturing method of the same 有权
标题翻译：具有倒角孔的构件及其制造方法
公开(公告)号：US07698924B2
公开(公告)日：2010-04-20
申请号：US12238050
申请日：2008-09-25
申请人： Masaki Nakajima , Hideyuki Nagai , Kazushi Nagashima , Ariyoshi Terao
发明人： Masaki Nakajima , Hideyuki Nagai , Kazushi Nagashima , Ariyoshi Terao
IPC分类号： B21D28/24 , B21D28/00
CPC分类号： B21D28/26 , B21D28/16 , B21D28/28
摘要： A method of forming a chamfered through hole having a chamfered portion at each end thereof by: forming a prepared hole in a plate-like portion; forming a first chamfered portion by driving a first punch; forming a second chamfered portion by driving a second punch, which has a second tapered surface and a generally columnar central pressing portion protruding from the center of the second tapered surface and having an annular corner at a tip thereof, and thereby forming the second chamfered portion and a central recess recessed axially inward; and punching out an unnecessary portion protruding radially inward of the prepared hole by using a finishing punch having an outer diameter equal to or smaller than that of the corner of the central pressing portion. The punching out the unnecessary portion is performed by punching from the first chamfered portion toward the second chamfered portion using the finishing punch.
摘要翻译：一种在其两端形成有倒角部分的倒角通孔的方法，其特征在于，在板状部分形成预制孔; 通过驱动第一冲头形成第一倒角部分; 通过驱动第二冲头形成第二倒角部分，所述第二冲头具有第二锥形表面和从第二锥形表面的中心突出并且在其尖端处具有环形角的大致圆柱形的中心挤压部分，从而形成第二倒角部分以及轴向向内凹入的中心凹部; 并且通过使用具有等于或小于中心按压部分的角度的外径的精加工冲头，冲出预定孔的径向向内突出的不必要部分。通过使用精整冲头从第一倒角部向第二倒角部冲压来进行冲压不需要的部分。

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