公开(公告)号：EP0947258A3

公开(公告)日：2000-07-19

申请号：EP99302645.9

申请日：1999-04-01

申请人： Nissei Co. Ltd.

发明人： Shinbutsu, Toshinaka ,  Yoshizawa, Minoru ,  Amano, Shuichi ,  Nakata, Katsuyuki ,  Yoshikawa, Hiroshi ,  Okino, Hiroshi

IPC分类号： B21H3/04 ,  B21H1/00

CPC分类号： B21H1/00

摘要： A round die type form rolling apparatus comprises: a pair of die moving blocks (15a,15b) rotatably supporting a pair of round dies (12a,12b); four beam shafts (19) disposed around the rolling position of a work (33) being rolled by the round dies (12a,12b) and extending between the pair of die moving blocks (15a,15b); and a push mechanism (20) for moving the pair of die moving blocks (15a,15b) toward each other. The die moving blocks (15a,15b) are moved, guided by the beam shafts (19), toward each other and the reaction forces generated between a pair of the round dies (12a,12b) by the rolling pressure are shared by the beam shafts (19) to prevent the round dies from escaping outwardly upwardly due to the reaction force from the work (33) that is generated when the rolling pressure is applied to the work. This arrangement improves the machining precision of the work (33).

公开(公告)号：EP0947258B1

公开(公告)日：2006-08-16

申请号：EP99302645.9

申请日：1999-04-01

申请人： Nissei Co. Ltd.

发明人： Shinbutsu, Toshinaka ,  Yoshizawa, Minoru ,  Amano, Shuichi ,  Nakata, Katsuyuki ,  Yoshikawa, Hiroshi ,  Okino, Hiroshi

IPC分类号： B21H3/04 ,  B21H1/00

CPC分类号： B21H1/00

公开(公告)号：EP0947258A2

公开(公告)日：1999-10-06

申请号：EP99302645.9

申请日：1999-04-01

申请人： Nissei Co. Ltd.

发明人： Shinbutsu, Toshinaka ,  Yoshizawa, Minoru ,  Amano, Shuichi ,  Nakata, Katsuyuki ,  Yoshikawa, Hiroshi ,  Okino, Hiroshi

IPC分类号： B21H1/00

CPC分类号： B21H1/00

摘要： A round die type form rolling apparatus comprises: a pair of die moving blocks (15a,15b) rotatably supporting a pair of round dies (12a,12b); four beam shafts (19) disposed around the rolling position of a work (33) being rolled by the round dies (12a,12b) and extending between the pair of die moving blocks (15a,15b); and a push mechanism (20) for moving the pair of die moving blocks (15a,15b) toward each other. The die moving blocks (15a,15b) are moved, guided by the beam shafts (19), toward each other and the reaction forces generated between a pair of the round dies (12a,12b) by the rolling pressure are shared by the beam shafts (19) to prevent the round dies from escaping outwardly upwardly due to the reaction force from the work (33) that is generated when the rolling pressure is applied to the work. This arrangement improves the machining precision of the work (33).

摘要翻译： 一种圆形模具轧制设备，包括：一对可旋转地支撑一对圆形模具（12a，12b）的模具移动块（15a，15b） 四个光束轴（19）围绕工件（33）的滚动位置设置，由圆形模具（12a，12b）卷绕并在一对模具移动块（15a，15b）之间延伸; 以及用于使一对模具移动块（15a，15b）朝向彼此移动的推动机构（20）。 模具移动块（15a，15b）由梁轴（19）引导移动，并且通过轧制压力在一对圆形模具（12a，12b）之间产生的反作用力共享 轴（19），以防止圆形模具由于施加轧制压力而产生的工件（33）的反作用力向外向外逸出。 这种布置提高了工件（33）的加工精度。