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公开(公告)号:US07192226B2
公开(公告)日:2007-03-20
申请号:US10871678
申请日:2004-06-15
申请人: Robert Unsworth
发明人: Robert Unsworth
IPC分类号: B23B51/00
CPC分类号: B23Q3/12 , B23B31/1179 , B23B2222/84 , B23B2222/92 , B23B2226/31 , B23B2231/04 , B23B2250/12 , B23B2260/138 , Y10T29/49865 , Y10T279/16 , Y10T279/3418 , Y10T408/03 , Y10T408/44 , Y10T408/907 , Y10T409/304032
摘要: A drill has a unitary drill bit and chuck structure that includes a drill bit and a chuck. The chuck encloses a portion of the drill bit and has a thread. A rotatable drive element having a thread engages the thread of the chuck. The chuck is heat shrunk onto the drill bit to form a unitary structure through direct bonding of the chuck with the drill bit.
摘要翻译: 钻头具有包括钻头和卡盘的单一钻头和卡盘结构。 卡盘包围钻头的一部分并具有螺纹。 具有螺纹的可旋转驱动元件与卡盘的螺纹啮合。 卡盘通过卡盘与钻头的直接接合而热收缩到钻头上以形成整体结构。