发明名称 |
Method of and apparatus for controlling forming press conditions |
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.
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申请公布号 |
US4698991(A) |
申请公布日期 |
1987.10.13 |
申请号 |
US19850766359 |
申请日期 |
1985.08.16 |
申请人 |
TOYOTA JIDOSHA KABUSHIKI KAISHA |
发明人 |
KIRII, KAZUNARI;TOYODA, MAMORU;UTSUMI, MASATOKI;ASAI, AKIO |
分类号 |
B21D24/04;B21D24/08;B21D24/10;B30B15/14;B30B15/22;B30B15/28;(IPC1-7):B30B15/16 |
主分类号 |
B21D24/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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