公开(公告)号：US4698991A

公开(公告)日：1987-10-13

申请号：US766359

申请日：1985-08-16

申请人： Kazunari Kirii ,  Mamoru Toyoda ,  Masatoki Utsumi ,  Akio Asai

发明人： Kazunari Kirii ,  Mamoru Toyoda ,  Masatoki Utsumi ,  Akio Asai

IPC分类号： B21D24/04 ,  B21D24/08 ,  B21D24/10 ,  B30B15/14 ,  B30B15/22 ,  B30B15/28 ,  B30B15/16

CPC分类号： B30B15/14 ,  B30B15/284

摘要： A method of and apparatus for controlling forming press conditions aids in maintaining stability in a mechanical double action press forming provided with an upper die (inner) and an outer ram (outer). These dies are driven independently wherein press conditions related to the forming process, such as a hydraulic pressure and pneumatic pressure, are automatically corrected by feedback so as to be maintained to preset values corresponding to the change of the inner stroke during the forming process. Abnormal operation can also be detected and corrected immediately by detecting the change of the press conditions during the forming process continuously or intermittently.

摘要翻译： 用于控制成形冲压条件的方法和设备有助于保持设置有上模（内）和外压头（外）的机械双作用压力成形中的稳定性。 这些模具独立地驱动，其中与成形过程相关的压力条件，例如液压和气动压力，通过反馈自动校正，以便在成形过程中保持与内部冲程变化相对应的预设值。 也可以通过连续地或间歇地检测成形过程中的冲压条件的变化，立即检测和校正异常操作。