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57 条记录 (耗时 0.012 秒)

    Lock thread die set and method
    1.
    发明授权
    Lock thread die set and method 失效
    锁螺纹套和方法

    公开(公告)号：US3872700A

    公开(公告)日：1975-03-25

    申请号：US37127473

    申请日：1973-06-18

    申请人： PRUTTON CORP

    发明人： MATEJ RONALD J

    IPC分类号： B21H3/06

    CPC分类号： B21H3/065

    摘要： A lock thread die set and method of forming a lock thread is disclosed wherein a split crest locking thread is formed on a workpiece. First and second dies cooperate with a workpiece to roll a first thread form on the workpiece and near the end of the thread forming a lock thread form section on one die has a crest which extends from the root in a position to engage the crest of the thread being formed on the workpiece. This crest splits the forming crest into a diverging double V-shaped crest along an intermediate portion of the length of the workpiece. The above description is merely one form of the invention and is not to be construed as limiting on the scope of the invention.

    Thread rolling machine
    2.
    发明授权
    Thread rolling machine 失效
    螺纹卷取机

    公开(公告)号：US3733867A

    公开(公告)日：1973-05-22

    申请号：US3733867D

    申请日：1972-02-14

    申请人： PRUTTON CORP

    发明人： PRUTTON E

    IPC分类号： B21H3/06 ,  B21H9/02 ,  B21H3/04

    CPC分类号： B21H9/02 ,  B21H3/065

    摘要： A thread rolling machine is disclosed wherein a rotary die has multiple starts of a thread form and workpieces are fed in synchronism so that the starting points of threads on successive workpieces gradually moves around the periphery of the die. By this means all of the thread starts are used in a sequence so that just a few are not subjected to this starting of threading. By this means die life is materially extended. The above description is merely one form of the invention and is not to be construed as limiting on the scope of the invention.

    FORM-ROLLING DIE STRUCTURE AND FORM-ROLLING METHOD FOR COMPOUND SCREW
    9.
    发明申请
    FORM-ROLLING DIE STRUCTURE AND FORM-ROLLING METHOD FOR COMPOUND SCREW 审中-公开
    用于复合螺丝的成形滚筒结构和成形方法

    公开(公告)号：US20140338412A1

    公开(公告)日：2014-11-20

    申请号：US14240030

    申请日：2012-08-19

    申请人： Michiwaki Hiroshi

    发明人： Michiwaki Hiroshi

    IPC分类号： B21H3/02

    CPC分类号： B21H3/02 ,  B21H3/06 ,  B21H3/065

    摘要： [Problem] The purpose of the present invention is to provide a form-rolling die and form-rolling method for a compound screw that use a cylindrical material to be threaded, enable the high-precision mass production of compound screws having a right-hand thread portion and a left-hand thread portion on the same region, do not cause rolling defects such as slips, and in which blockages do not occur even in the unlikely event of shavings being generated. [Solution] A form-rolling die structure is provided with die members which are pressed against a material to be threaded and which have rigid surfaces that are relatively displaced. The die members are equipped with a plurality of independent concave portions which form a substantially parallelogram shape when viewed from the normal of a virtual surface obtained by connecting the outermost portions of each of the rigid surfaces, and which are recessed from the virtual surface. Two of the corners at the sites corresponding to the four corners of the substantially parallelogram-shape of the concave portions are rounded. The periphery of each concave portion in the cross-section along the direction of the normal is rounded along the periphery of the substantially parallelogram shape. The concave portions form a substantially truncated-pyramid shape. The sites equivalent to the ridge lines of the concave portions are rounded in cross-sectional view perpendicular to the ridge line, and bases (35) are provided in the deepest sites (34).

    摘要翻译： 发明内容本发明的目的在于提供一种用于使用圆柱形材料进行螺纹化的复合螺杆的成型轧制模具和成形方法，能够高精度批量生产具有右侧的复合螺杆 螺纹部分和左螺纹部分不会引起滚动缺陷，例如滑动，即使在不太可能发生的刨屑的情况下也不会发生堵塞。 [解决方案]一种成型模具结构设置有模具构件，该模具构件被压靠在要被螺纹的材料上并且具有相对位移的刚性表面。 模具构件配备有多个独立的凹部，当从通过连接每个刚性表面的最外部分并且从虚拟表面凹陷而获得的虚拟表面的法线观察时，形成基本上平行四边形。 对应于凹部的大致平行四边形形状的四个角部的位置处的两个角部是圆形的。 沿着法线方向的横截面中的每个凹部的周边沿着大致平行四边形的周边圆化。 凹部形成大致截头棱锥形状。 与凹部的脊线相当的部位在与脊线垂直的剖视图中为圆形，基部（35）设置在最深部位（34）。

    Former having continuous forming-rolling assembly
    10.
    发明授权
    Former having continuous forming-rolling assembly 失效
    前者具有连续成型轧制组件

    公开(公告)号：US4546630A

    公开(公告)日：1985-10-15

    申请号：US525674

    申请日：1983-08-23

    申请人： Yoshikazu Sakamura

    发明人： Yoshikazu Sakamura

    IPC分类号： B21H3/06 ,  B21K1/46 ,  B21K1/56 ,  B21D43/05

    CPC分类号： B21H3/065 ,  B21K1/46 ,  B21K1/56

    摘要： A press assembly by which cut metal workpieces of specified length are formed into blanks of desired shape by punches and dies is provided with a rolling mechanism disposed adjacent to and in line with the press assembly. The blanks formed by the press assembly are fed directly to the rolling mechanism to perform the press work and rolling work continuously.

    摘要翻译： 具有规定长度的切割金属工件通过冲头和模具形成所需形状的坯料的压制组件设置有与压制组件相邻并与之配合的滚动机构。 由压力机组件形成的坯料直接送入滚动机构，以连续进行冲压加工和轧制。