利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

2 条记录 (耗时 0.009 秒)

    Hydraulic cushioning system for press, having shut-off valve for disconnection of pressure-pin cylinders from power supply upon contact of movable die with workpiece
    2.
    发明公开
    Hydraulic cushioning system for press, having shut-off valve for disconnection of pressure-pin cylinders from power supply upon contact of movable die with workpiece 失效
    液压垫组件用于压，以用于在与工件可动工具的接触切断压力销的电源的停止阀。

    公开(公告)号：EP0531141A1

    公开(公告)日：1993-03-10

    申请号：EP92308016.2

    申请日：1992-09-03

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： Kirii, Kazunari, c/o Toyota Jidosha K.K. ,  Ono, Tsutomu, c/o Toyota Jidosha K.K. ,  Minami, Seiki, c/o Toyota Jidosha K.K.

    IPC分类号： B21D24/14 ,  B21D24/02

    CPC分类号： B21D24/14 ,  B21D24/02

    摘要： A hydraulic cushioning apparatus for a press, having work-supporting pressure pins (7), hydraulic cylinders (8) linked with the pressure pins, and a fluid passage (15, 17, 30) connecting a hydraulic power supply (20) to the hydraulic cylinders, to apply a preset hydraulic pressure to the cylinders. The apparatus includes a shut-off valve (25) disposed in the fluid passage for connection and disconnection of the hydraulic power supply to and from the hydraulic cylinders, and a controller (26) for controlling the shut-off valve such that the shut-off valve is closed before a movable die (1) of the press comes into pressing contact with the workpiece (W), and is held in the closed position for at least a period which expires when the fluid in the hydraulic cylinders rises to the preset pressure level.

    摘要翻译： 与压力销相连用于压的液压缓冲装置，具有工作支撑压力销（7）的液压，液压缸（8），和一个流体通道（15，17，30）连接一个液压动力源（20）到 液压缸，以预设的液压施加到液压缸。 该装置包括用于控制所述截止阀搜索，DASS模具SHUT在用于向和从所述液压缸的液压动力源的连接和断开的流体通道设置在截止阀（25），以及控制器（26） 开关阀之前的可动封闭（1）压榨的进入与所述工件（W）压接，而在关闭位置保持至少一个周期，其到期当液压缸中的流体上升到预先设定的 压力水平。