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    • 3. 发明授权
    • Screw driving and turning machine
    • 螺丝起落车
    • US5921156A
    • 1999-07-13
    • US752382
    • 1996-11-20
    • Mitsugu TakezakiYoshio FukushimaNoboru IshikawaTakeo FujiyamaHiroshi TanakaKazuhiko KuraguchiShinobu Iino
    • Mitsugu TakezakiYoshio FukushimaNoboru IshikawaTakeo FujiyamaHiroshi TanakaKazuhiko KuraguchiShinobu Iino
    • B25B21/02B25C1/00B25C1/04B25B23/04
    • B25C1/008B25B21/023B25C1/00B25C1/047
    • A screw driving and turning machine comprises: a body having a nose portion; a driving cylinder received in the body; a screw driving mechanism having a driving piston having a driving and turning bit slidably accommodated in the driving cylinder, wherein compressed air is fed into the driving cylinder to drive the driving piston, and a screw held in the nose portion of the body is driven to a state in which a head portion of the screw is raised; a screw turning mechanism having an air motor driven by a portion of compressed air fed to the driving cylinder, for turning the screw, which has been driven by the driving piston; a stop valve for opening and closing an air passage between the driving cylinder and the air motor, arranged in the middle of the air passage; and a contact arm slidably arranged along the nose portion, for operating the stop valve by being pushed to the body in accordance with pressing an end of the contact arm against a material into which the screw is driven, wherein the feed of compressed air from the driving cylinder to the air motor is stopped by closing the stop valve when the contact arm is pushed to a predetermined position by pressing an end of the contact arm against the material into which the screw is driven.
    • 螺杆驱动和车削机器包括:具有鼻部的主体; 容纳在体内的驱动气缸; 螺杆驱动机构具有驱动活塞,驱动活塞具有可滑动地容纳在驱动气缸中的驱动和转动位置,其中压缩空气被供给到驱动气缸中以驱动驱动活塞,并且保持在主体的鼻部中的螺钉被驱动到 螺钉的头部上升的状态; 螺旋转动机构,其具有由供给到驱动气缸的压缩空气的一部分驱动的空气马达,用于转动由驱动活塞驱动的螺杆; 用于打开和关闭布置在空气通道中间的驱动气缸和气动马达之间的空气通道的截止阀; 以及沿着鼻部可滑动地布置的接触臂,用于通过将接触臂的端部压靠在螺杆被驱动的材料中而被推向身体来操作截止阀,其中从 当通过将接触臂的端部压靠在螺杆被驱动的材料上而将接触臂推动到预定位置时,通过关闭截止阀来停止向气动马达的驱动气缸。