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1. 发明授权

US4088333A Jaws, guiding base plates and adjusting mechanism for chucks 失效
标题翻译：夹爪，引导底板和卡盘调整机构
公开(公告)号：US4088333A
公开(公告)日：1978-05-09
申请号：US682515
申请日：1976-05-03
申请人： Alfred F. Nobile , Douglas A. Nobile
发明人： Alfred F. Nobile , Douglas A. Nobile
IPC分类号： B23B31/173 , B23B31/12 , B23B31/19
CPC分类号： B23B31/1215 , B23B31/1253 , Y10T279/17598 , Y10T279/17615 , Y10T408/953
摘要： A drill chuck is disclosed with a pair of jaws and a pair of jaw guiding base plates for centering and holding a drill bit. The chuck comprises a cylindrical housing for the pair of base plates in which the jaws are functionally located. Internal channels and platforms of the above plates guidedly control the movement of the pair of jaws and support a manual adjusting mechanism. The configuration of each of the jaws is such that two rows of triangular spaced apart teeth furnish an adjustable drill receiving opening, or corridor, which is constantly a square for the full range of opening adjustments. Shoulder extensions of the jaws are guidedly located in "V" shaped channels of the base plates. Dowel pins couple an adjusting mechanism to the jaws for guided movement. The adjusting mechanism includes a wedge-shaped body coupled to the dowel pins and a shaft having a left-hand threaded portion threadedly secured to the wedge body and a right-hand threaded portion threadedly retaining a jam nut and an adjusting knob. The nut is frictionally secured within cavities of the base plates. Rotation of the adjusting knob causes the movement of the left and right-hand portions of the shaft through the wedge body and the jam nut for controlling the opening and closing of the jaw opening, or corridor, for centering and holding a drill.
摘要翻译：公开了一种钻夹头，其具有一对夹爪和一对夹爪引导底板，用于对中并保持钻头。卡盘包括用于一对基板的圆柱形壳体，其中夹爪在功能上位于其中。上述板的内部通道和平台引导控制一对钳口的运动并支持手动调节机构。每个夹爪的构造使得两排三角形间隔开的齿提供可调节的钻孔接收开口或通道，该通道不断地为整个开度调节范围的正方形。颚的肩部延伸部被引导地位于基板的“V”形通道中。定位销将调节机构连接到夹爪上用于引导移动。该调节机构包括一个与定位销相连接的楔形体，以及一个具有螺纹固定在楔体上的左旋螺纹部分的轴和一个螺纹地保持一个果酱螺母和一个调节旋钮的右螺纹部分。螺母被摩擦地固定在基板的空腔内。调节旋钮的旋转导致轴的左右部分通过楔形体和阻塞螺母的运动，用于控制夹爪开口或走廊的打开和关闭以对准和保持钻头。

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