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1. 发明授权

US07930956B2 Multi-spindle screw machine, and improved tool arm for use therein 有权
标题翻译：多主轴螺丝机，以及用于其中的改进的工具臂
公开(公告)号：US07930956B2
公开(公告)日：2011-04-26
申请号：US11302830
申请日：2005-12-14
申请人： Sandro G. Belpanno , Robert C. Kruse
发明人： Sandro G. Belpanno , Robert C. Kruse
IPC分类号： B23B5/00
CPC分类号： F16C35/12 , B23B9/005 , F16C3/02 , F16C19/48 , F16C25/08 , F16C27/04 , Y10T82/20 , Y10T82/2562 , Y10T483/17
摘要： An improved Davenport® multi-spindle automatic screw machine has a tool arm (14) mounted on a shaft (41) for rotational movement relative to a revolving head cap (13). A needle bearing (42, 42) is operatively arranged between the shaft and the revolving head cap. The bearing is radially loaded as said bearing is installed and that the individual needles of same remain elastically deformed by the radial load immediately after said bearing has been installed. The shaft has a hardened surface (52) that is engaged by the needles. The diameter of the shaft hardened surface portion is greater than the diameters of the adjacent shaft portions. Annular recesses (51, 53) extend into the shaft at either end of the hardened portion. These recesses have frusto-conical surfaces (55) that act as ramps to guide insertion of the press-fittable needle bearing into the space between the shaft and the head cap.
摘要翻译：改进的Davenport®多主轴自动螺丝机具有安装在轴（41）上的工具臂（14），用于相对于旋转头盖（13）旋转运动。滚针轴承（42,42）可操作地布置在轴和旋转头盖之间。当安装所述轴承时，所述轴承是径向加载的，并且在安装所述轴承之后，其各个针在径向载荷之间保持弹性变形。轴具有与针接合的硬化表面（52）。轴硬化表面部分的直径大于相邻轴部分的直径。环形凹部（51,53）在硬化部分的任一端延伸到轴中。这些凹槽具有作为斜面的截头圆锥形表面（55），以引导可压配的滚针轴承插入到轴和头盖之间的空间中。

2. 发明授权

US07155799B2 Method of holding a key in a keyway 失效
标题翻译：在键槽中保持键的方法
公开(公告)号：US07155799B2
公开(公告)日：2007-01-02
申请号：US10933154
申请日：2004-09-02
申请人： Robert C. Kruse , David J. Revelle
发明人： Robert C. Kruse , David J. Revelle
IPC分类号： B21D39/00 , B25G3/28
CPC分类号： F16D1/0876 , Y10T29/49908 , Y10T29/49925 , Y10T403/4966
摘要： An improved method of holding a key (20) in a keyway (31) includes the steps of: forming an elongated keyway in the member, the member having at least one sharp corner (34) facing into the keyway adjacent either end thereof; forming a key (20) to fit in the keyway, the key being so dimensioned, proportioned and configured that the part of the key immediately adjacent each sharp corner will be recessed with respect to the surface of the member at the corner; placing the key in the keyway; and plastically deforming portions (40) of the member at the sharp corners into the keyway so as to permanently hold the key in the keyway.
摘要翻译：在键槽（31）中保持键（20）的改进方法包括以下步骤：在构件中形成细长的键槽，所述构件具有至少一个尖锐的角部（34），所述尖锐的角部（34）面向邻近其任一端的键槽; 形成键（20）以配合在键槽中，该键的尺寸，比例和构造使得紧邻每个锐角的键的部分将相对于在角部处的构件的表面凹陷; 将键放在键槽中; 并且使所述构件在所述尖角处的所述部分（40）变形成所述键槽，以将所述键永久地保持在所述键槽中。

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