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1. 发明授权

US4021051A Chuck for machine tools 失效
标题翻译：卡盘用于机床
公开(公告)号：US4021051A
公开(公告)日：1977-05-03
申请号：US641823
申请日：1975-12-17
申请人： Yoshitaka Toyomoto , Noboru Kawasaki
发明人： Yoshitaka Toyomoto , Noboru Kawasaki
IPC分类号： B23B31/08 , B23B31/117 , B23B31/20 , B23B31/04
CPC分类号： B23B31/202 , B23B31/117 , Y10S279/903 , Y10T279/17 , Y10T279/17965 , Y10T409/30952
摘要： There is disclosed a chuck adapted to be attached to the spindle of a machine tool, for gripping an intended tool, comprising a chuck barrel adapted to grip an intended tool and having a conical outer peripheral surface and not having slots extending along the generating lines thereof, a clamp ring fitted over said chuck barrel, and a number of rollable bodies in the form of needle rollers interposed between said clamp ring and said chuck barrel and inclined at a fixed angle with respect to the generating lines, the arrangement being such that when said clamp ring is manipulated for rotation, said rollable bodies spirally revolve around the axis of the chuck barrel along the conical peripheral surface thereof while rotating around their own axes, thereby effecting the contraction and configurational restoration of the chuck barrel, said chuck being characterized in that a restraining ring is attached to the outer peripheral surface of said clamp ring and rollable bodies, particularly in the form of needle rollers, are interposed between said restraining ring and said clamp ring, thereby restraining said chuck barrel from developing a flection deformation when said chuck barrel is contracted and restraining said clamp ring from developing a restoration deformation as it tends to radially expand by the reaction due to the contracting force, thereby increasing the power for gripping the tool.
摘要翻译：公开了一种适于附接到机床的心轴的卡盘，用于夹持预期的工具，包括适于夹持预期工具并具有锥形外周表面并且没有沿着其生成线延伸的槽的卡盘筒夹在所述卡盘筒上的夹环，以及设置在所述夹环和所述卡盘筒之间并以相对于所述生成线固定的角度倾斜的滚针形式的多个可滚动体，所述布置使得当所述夹紧环被操作以进行旋转，所述可滚动体围绕卡盘筒的轴线沿其圆锥形周向表面旋转，同时绕其自身的轴线旋转，从而实现卡盘筒的收缩和构造恢复，所述卡盘的特征在于限制环附接到所述夹紧环的外周表面和可滚动体，特别是i 以滚针的形式插入在所述限制环和所述夹紧环之间，从而当所述卡盘筒收缩时约束所述卡盘筒形成弯曲变形，并且限制所述夹紧环形成恢复变形，因为其倾向于径向膨胀由于收缩力的反应，从而增加了夹持工具的功率。

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