利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

215 条记录 (耗时 0.01 秒)

    Gear hobbing machines
    41.
    发明授权
    Gear hobbing machines 失效
    齿轮机械

    公开(公告)号：US3812761A

    公开(公告)日：1974-05-28

    申请号：US25004272

    申请日：1972-05-03

    申请人： MACHINE TOOL DIVISIONAL

    发明人： SOUTHWORTH C

    IPC分类号： B23F1/06 ,  B23F5/20 ,  B23F5/22 ,  B23B21/00

    CPC分类号： B23F1/06 ,  B23F5/20 ,  Y10T82/2533 ,  Y10T409/102226 ,  Y10T409/103498

    摘要： A gear hobbing machine comprising a rotary hob, an infeed slide carrying the hob, a hydraulic piston and cylinder assembly connected to the infeed slide and operable to advance it towards a gear blank to be hobbed, said cylinder and piston assembly discharging liquid during advance of the infeed slide through a normally open pilot operated check valve, a solenoid operated valve which normally permits of application of hydraulic pressure to the pilot of the check valve to maintain the check valve open, and a limit switch operable by the infeed slide to actuate the solenoid operated valve to cut off pressure from the pilot of the check valve and thereby to cause closure of the check valve to terminate advance of the infeed slide.

    摘要翻译： 一种滚齿机，包括旋转滚刀，承载滚刀的进料滑块，连接到进料滑块的液压活塞和气缸组件，可操作以将其推向要滚动的齿轮坯料，所述气缸和活塞组件在提前 进料通过常开的先导式止回阀滑动，电磁阀通常允许向止回阀的先导阀施加液压以保持止回阀打开;以及限位开关，其由进给滑块可操作以致动 电磁阀，以从止回阀的先导阀切断压力，从而导致止回阀关闭以终止进给滑块的前进。