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    • 44. 发明授权
    • Thread forming tool
    • 螺纹成型工具
    • US5735658A
    • 1998-04-07
    • US661290
    • 1996-06-10
    • Anton Harle
    • Anton Harle
    • B21H3/06B23G5/04B23G5/06B23G5/18F16B33/02B23B51/00B21D17/02F16B35/04
    • F16B33/02B23G5/04B23G5/06B23G5/18B21H3/06Y10T408/9095
    • A tool having a profile for the forming or shaping of a complementary thread in and/or on a fastener which can be utilized with advantage as a bone screw or another osteosynthetic force transmitting member, instrument or accessory. The thread which is formed by the profile of the tool has two flanks each having a first section adjacent the crest and a second section adjacent the root of the thread. The second sections jointly include or consist of at least four concave portions having different radii of curvature and gradually merging into each other. The first sections make angles of less than 40.degree. with a plane which is normal to the longitudinal axis of the thread. The first and second sections of each flank are separated from each other by an imaginary cylinder having a diameter which matches the pitch diameter of the thread and a longitudinal axis which coincides with or is at least close to the longitudinal axis of the thread.
    • 具有用于在紧固件中和/或紧固件上形成或成形互补螺纹的轮廓的工具,其可以有利地用作骨螺钉或另一个骨接合力传递构件,仪器或附件。 由工具的轮廓形成的螺纹具有两个侧面,每个侧面具有邻近顶部的第一部分和与螺纹根部相邻的第二部分。 第二部分共同地包括或由至少四个具有不同曲率半径的凹部组成,并逐渐相互合并。 第一部分的角度小于40°,平面垂直于螺纹的纵向轴线。 每个侧面的第一和第二部分通过具有与螺纹的节圆直径匹配的直径的假想圆柱和与螺纹的纵向轴线重合或至少接近螺纹的纵向轴线的纵向轴线彼此分开。
    • 45. 发明授权
    • Machining apparatus
    • 加工设备
    • US5308197A
    • 1994-05-03
    • US859082
    • 1992-03-27
    • Roger W. Little
    • Roger W. Little
    • B23B27/06B23B27/16B23G5/18
    • B23B27/065B23B27/1614B23G5/18B23B2200/048B23B2205/12B23B2215/68Y10T407/227Y10T407/2274Y10T407/2282Y10T407/23Y10T407/25
    • A machining apparatus is described, of the type that includes a metal cutting insert which is held by an insert holder apparatus, wherein the insert can be installed in a plurality of different positions to use different ones of the cutting edges, which facilitates mounting of the insert. The holder apparatus includes a holder bar (16, FIG. 1) and a pocket member (14) that mounts on the bar and that holds an insert (12) with cutting edges (22). The pocket member has a first precision flat surface (90) that mounts facewise against a flat surface on the bar, and the pocket member has a second precision flat surface (92) that mounts facewise against a surface on the insert. The first and second flat surfaces on the pocket member can be parallel, or can be angled slightly from each other, to control orientation of the insert. The insert has a mount portion (32, FIG. 2 ) with a periphery lying on the sides of an imaginary polygon such as a square, and has a plurality of arms (51-54) projecting radially with respect to the insert axis (30), from a plurality of corners of the imaginary polygon. The mount portion forms locating sides (41-44) at the sides of the imaginary polygon, with a pair of such locating sides bearing against a pair of positioning sides (76, 78) of the pocket member to locate the insert with precision on the pocket member.
    • 描述了一种加工装置,其类型包括由刀片保持装置保持的金属切削刀片,其中刀片可以安装在多个不同位置以使用不同的切削刃,这有助于安装 插。 保持器装置包括安装在杆上的保持杆(16)和袋构件(14),并且保持具有切削刃(22)的刀片(12)。 所述口袋构件具有面向所述杆上的平坦表面的第一精密平坦表面(90),并且所述口袋构件具有面向所述插入件上的表面的第二精密平坦表面(92)。 袋状构件上的第一和第二平坦表面可以是平行的,或者可以彼此稍微倾斜,以控制插入物的取向。 插入件具有安装部分(32,图2),其周边位于诸如正方形的假想多边形的侧面上,并且具有相对于插入轴线(30)径向突出的多个臂(51-54) ),从假想多边形的多个角落。 安装部分在假想多边形的侧面处形成定位侧面(41-44),其中一对这样的定位侧面抵靠袋状构件的一对定位侧面(76,78),以将精确定位在 口袋会员