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    • 4. 发明授权
    • Hydropneumatic blind riveter with automatic mandrel catcher
    • 液压气动盲铆钉机具有自动心轴捕手
    • US4515005A
    • 1985-05-07
    • US363288
    • 1982-03-29
    • Gunter Klein
    • Gunter Klein
    • B21J15/00B21J15/02B21J15/06B21J15/16B21J15/22B21J15/28B21J15/32B21J15/36B21D31/00
    • B21J15/22B21J15/105B21J15/326Y10T29/53748
    • A riveter has a housing forming an air chamber and a liquid-filled hydraulic chamber adjacent thereto, a head on the housing having a tip and forming a liquid-filled working chamber communicating with the hydraulic chamber, and a working piston in the working chamber and carrying a chuck for grasping a mandrel of a blind rivet. The head and chuck form a passage having a front end opening at the tip and a rear end opening into a mandrel-catching compartment and the piston displaceable in the working chamber between a ready position in which a mandrel of a blind rivet can be fitted into the passage at the chuck with the rivet engaged backwardly against the tip and an actuated position spaced from the tip and wherein the chuck is retracted. An air piston is provided in the air chamber and carries a hydraulic piston displaceable in the hydraulic chamber between an advanced position pressurizing the hydraulic and working chambers and corresponding to a front position of the air piston and a retracted position corresponding to a rear position of the air piston.
    • 铆钉具有形成空气室和与其相邻的液体充填液压室的壳体,壳体上的头部具有尖端并形成与液压室连通的充满液体的工作室,以及工作室中的工作活塞, 携带用于抓握盲铆钉的心轴的卡盘。 头部和卡盘形成通道,该通道在尖端处具有前端开口,后端开口进入心轴捕获室,活塞可在工作室中移位,该就绪位置可以将盲铆钉的心轴嵌入其中 在卡盘处的通道与铆钉相对于顶端接合,并且与尖端间隔开的致动位置,并且其中卡盘缩回。 空气活塞设置在空气室中,并且承载液压活塞,该液压活塞可在液压室中位移,该前进位置对液压和工作室进行加压,并对应于空气活塞的前部位置,并且对应于后退位置的缩回位置 空气活塞。