Cutting tool assembly with replaceable cutting head
    2.
    发明授权
    Cutting tool assembly with replaceable cutting head 有权
    切割刀具组件,带可更换切割头

    公开(公告)号:US06485235B1

    公开(公告)日:2002-11-26

    申请号:US09850891

    申请日:2001-05-08

    IPC分类号: B23B5102

    摘要: The present invention provides a new cutting tool assembly comprising a replaceable cutting head and a tool body having a common longitudinal axis and mating peripheral surfaces. The cutting head has a cutting portion forming a leading end, a pilot portion forming a trailing end, and a cutting head mounting portion adjacent the trailing end of the cutting head. The tool body has a cutting head receiving portion formed at a leading end of the tool body and a pilot recess disposed in the leading end of the tool body to matingly receive the pilot portion of the cutting head. The cutting head mounting portion and the cutting head receiving portion of the tool body each have at least two coupling portions. The cutting head coupling portions and the tool body coupling portions are bound by their peripheral surfaces and generally mate in shape and dimensions. Each coupling portion has a pair of base surfaces, including upper and lower surfaces. The base surfaces extend transversely to the longitudinal axis and provide support of the cutting head in the tool body. A torque transmission wall extends between the upper and lower base surfaces from the pilot portion surface in a generally transverse direction relative to the longitudinal axis and oriented transversely to the base surfaces. A fastener may be disposed in the tool body along its longitudinal axis where it matingly engages the pilot portion of the cutting head and exerts an axial force on the cutting head for pressing the cutting head mounting portion against the cutting head receiving portion of the tool body.

    摘要翻译: 本发明提供了一种新的切削工具组件,其包括可替换的切削头和具有共同的纵向轴线和配合的外围表面的工具主体。 切割头具有形成前端的切割部分,形成后端的先导部分和与切割头的后端相邻的切割头安装部分。 工具主体具有形成在工具主体的前端的切割头接收部和设置在工具主体的前端中的引导凹部,以匹配地接收切割头的引导部。 切割头安装部分和工具主体的切割头接收部分每个具有至少两个联接部分。 切割头联接部分和工具主体联接部分由其周边表面结合,并且通常在形状和尺寸上配合。 每个联接部分具有一对基面,包括上表面和下表面。 基面垂直于纵向轴线延伸并提供刀具在工具主体中的支撑。 扭矩传递壁在导向部分表面之间的上基底表面和下基底表面之间沿相对于纵向轴线的大致横向方向延伸并且横向于基部表面定向。 紧固件可以沿着其纵向轴线设置在工具主体中,其中其匹配地接合切割头的引导部分并且在切割头上施加轴向力,以将切割头安装部分压靠在工具主体的切割头接收部分 。

    Flat bottom tool
    4.
    发明授权
    Flat bottom tool 有权
    平底工具

    公开(公告)号:US6135681A

    公开(公告)日:2000-10-24

    申请号:US137647

    申请日:1998-08-21

    IPC分类号: B23B51/00

    摘要: The present invention is a drilling system for cutting flat bottomed holes in work pieces. The tool has two opposing angled cutting edges extending from a rotational axis, with the inner portions of these cutting edges extending upwardly to create an overlapping web at the center. The overlapping web strengthens the center portion of the cuttings edges of the tool. The angle at which the inner portion of the cutting edge is inclined can be increased to create a center point on the cutting surface of the tool. The center point adds stability to the tool as it rotates along its longitudinal axis. The cutting edge has a rake surface with a positive rake angle that lessens the forces on the insert and also allows for better formation of chips of stock material being removed. Chip breakers can be cut into the cutting edges of the insert, further aiding in the removal of stock material.

    摘要翻译: 本发明是一种用于切割工件中的平底孔的钻孔系统。 该工具具有从旋转轴线延伸的两个相对的倾斜的切割边缘,这些切割边缘的内部部分向上延伸以在中心形成重叠的卷材。 重叠的网加强了工具的切屑边缘的中心部分。 可以增加切削刃的内部部分倾斜的角度,以在工具的切割表面上产生中心点。 中心点在刀具沿其纵向轴线旋转时增加了刀具的稳定性。 切削刃具有具有正前角的前刀面,其减小刀片上的力并且还允许更好地形成被去除的原料的切屑。 切屑可以切入刀片的切削刃,进一步帮助切削材料。

    Drill tool assembly
    5.
    发明授权
    Drill tool assembly 有权
    钻具组件

    公开(公告)号:US5957635A

    公开(公告)日:1999-09-28

    申请号:US137657

    申请日:1998-08-21

    IPC分类号: B23B51/00 B23B51/06

    摘要: The invention is directed at a drill tool assembly including a holder having a shank and head portion and having a axial centerline or rotational axis on which said holder is rotated in use. The head portion includes a holder slot at least over a central portion of the head, with the slot being oriented perpendicularly to the axial centerline of the holder. The holder slot also includes a locating boss extending upwardly from the bottom of the slot, which includes first and second surfaces, with at least one of the surfaces being located in a predetermined position with respect to the axial centerline of the holder, and substantially parallel to this centerline. A drill insert having first and second cutting surfaces is selectively positioned within the holder slot, and includes a locating slot adapted to be positioned in a predetermined orientation relative to the boss provided in the holder slot. Both the position of the boss and corresponding position of the drill insert and locating slot with respect to the boss are controlled by orienting the drill insert in a predetermined manner with respect to the holder to minimize offset errors in these relative positions. In the preferred embodiment, the holder and the locating dowel or boss share a common rotational axis and the drill insert is installed in the holder in a single orientation and configured so that when it is cammed into place by an offset retaining screw, the bit indexes so that the centerline or rotational axis of the bit, locating boss and holder are substantially co-linear.

    摘要翻译: 本发明涉及一种钻具组件,其包括具有柄和头部并具有轴向中心线或旋转轴线的保持器,所述保持器在使用中在其上旋转。 头部包括至少在头部的中心部分上的保持器狭槽,其中狭槽垂直于保持器的轴向中心线定向。 保持器槽还包括从槽的底部向上延伸的定位凸起,该凸起包括第一和第二表面,其中至少一个表面相对于保持器的轴向中心线位于预定位置,并且基本平行 到这个中心线。 具有第一和第二切割表面的钻子插入件选择性地定位在保持器槽内,并且包括适于相对于设置在保持器槽中的凸起以预定取向定位的定位槽。 通过相对于保持器以预定方式定位钻头插入件来控制凸台的位置和钻头插入件和定位槽相对于凸台的相应位置,以最小化这些相对位置中的偏移误差。 在优选实施例中,保持器和定位销或凸台共享共同的旋转轴线,并且钻头插入件以单一方向安装在保持器中并且构造成使得当通过偏移固定螺钉将其固定到位时, 使得钻头,定位凸台和保持器的中心线或旋转轴线基本上是共线的。