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1. 发明专利

JP2007075846A Die cushion device of press 审中-公开
标题翻译： DIE CUSHION设备的新闻
公开(公告)号：JP2007075846A
公开(公告)日：2007-03-29
申请号：JP2005265620
申请日：2005-09-13
申请人： Amino:Kk , 株式会社アミノ
发明人： AMINO HIROYUKI , RO GEN , KOIZUMI YOSHIMASA
IPC分类号： B21D24/02 , B30B15/02
摘要： PROBLEM TO BE SOLVED: To provide a die cushion device of a press which is simple in structure, high in durability and load resistance, high in stability of the die cushion pressure, and excellent in control accuracy of the die cushion force. SOLUTION: The die cushion device comprises a plurality of pistons extending below a pad for holding a peripheral edge of a blank between an upper part of the pad and a die, cylinder bodies having oil chambers for receiving them, a pipe for connecting the cylinder bodies to a tank, a hydraulic pump for feeding pressurized oil from the tank to the cylinder bodies according to the rotational direction while interposed by the pipe, and returning the pressurized oil from the cylinder bodies to the tank, and a servo motor for driving the hydraulic pump in the forward and reverse directions. The cushion force is controlled by controlling the rotational direction, the torque and the speed of the servo motor. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：解决的问题：提供一种结构简单，耐久性和耐负荷性高，模具缓冲压力稳定性高，模具缓冲力控制精度优异的冲压机的模具缓冲装置。解决方案：模具缓冲装置包括在衬垫下方延伸的多个活塞，用于保持衬垫的上部和模具之间的坯料的周边边缘，具有用于容纳它们的油室的缸体，用于连接的管缸体到罐体，液压泵，用于根据旋转方向从罐体向缸体供给加压油，同时插入管道，并将加压油从缸体返回到罐中;以及伺服马达，用于在正反方向驱动液压泵。通过控制伺服电动机的旋转方向，转矩和速度来控制缓冲力。版权所有（C）2007，JPO＆INPIT

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