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    Rock bit manufacturing method
    72.
    发明授权
    Rock bit manufacturing method 失效
    岩石钻头制造方法

    公开(公告)号：US5189932A

    公开(公告)日：1993-03-02

    申请号：US812748

    申请日：1991-12-24

    Applicant: Daura Palmo ,  James H. Snider

    Inventor： Daura Palmo ,  James H. Snider

    IPC: B23P15/28 ,  E21B10/20

    CPC classification number: B23P15/28 ,  E21B10/20 ,  Y10T29/49899 ,  Y10T82/10

    Abstract: The method of making a roller cone rock bit wherein a main body having a tool joint adjacent one end and a plurality of leg stubs adjacent the other end, has the outer surfaces of those leg stubs on a common conical locus tapering longitudinally inwardly from the radially outer extremity to the radially inner extremity. A like number of cone bases have their trunnions emplaced in respective recesses in a common fixture, in which the recesses are oriented with respect to one another in the same manner as is desired for the relative orientation of the trunnions on the finished rock bit. The end surfaces of the leg extensions which are integral with these trunnions are then simultaneously machined to lie on a common conical locus corresponding to that of the outer surfaces of the leg stubs. The trunnions are removed from the fixture, and each of the adjoining leg extensions has its machined end surface mated with an welded to a respective one of the outer surfaces of the leg stubs.

    Abstract translation: 制造滚子锥形钻头的方法，其中具有邻近一端的工具接头的主体和与另一端相邻的多个腿短柱的方法具有这些腿短柱的外表面在一个共同的锥形轨迹上，该公共锥形轨迹从径向逐渐向内逐渐变细 外端到径向内端。 相同数目的锥形基座的耳轴位于普通夹具中的相应凹槽中，其中凹部相对于彼此以相对于成品岩石钻头上的耳轴的相对定向所需的相同方式定位。 然后将与这些耳轴形成一体的腿部延伸部的端面同时加工成位于与腿部短柱的外表面相对应的公共锥形轨迹上。 耳轴从夹具中移出，并且每个邻接的腿部延伸部的机加工端面与焊接到腿部桩的相应一个外表面配合。

    Method for assembling a print head
    73.
    发明授权
    Method for assembling a print head 失效
    组装打印头的方法

    公开(公告)号：US3808669A

    公开(公告)日：1974-05-07

    申请号：US38610573

    申请日：1973-08-06

    Applicant: NCR

    Inventor： MITCHNER J ,  KELLER R ,  GRAHAM C

    IPC: B41J2/335 ,  B23Q3/00

    CPC classification number: B41J2/3357 ,  B41J2/33575 ,  Y10T29/49895 ,  Y10T29/49899

    Abstract: A method and jig for assembling a plurality of thermal print wafers to form a print head. The jig includes a fixture plate having accurate first and second planar surfaces perpendicular to each and joined in a common edge. An alignment bar having first and second control surfaces thereon is secured to said plate so that the control surfaces lie in a common plane which is perpendicular to the first planar surface and parallel to the common edge. The print wafers are sandwiched between clamps and positioned on the jig so that the operative ends of the wafers become aligned in a plane controlled by the control surfaces when spring-loaded levers on the jig are used to urge the operative ends against the control surfaces. A compressing lever on the jig is used to compress the wafers between the clamps prior to securing the clamps together to produce a completed print wafer module. The completed print wafer modules are then aligned on a support member while using an alignment fixture having a plurality of control surfaces lying in a common plane. The operative end of each print wafer module is urged into contact with an adjacent pair of control surfaces on the alignment fixture to align the module, and the module is then secured to the support member. The remaining modules are similarly aligned and secured to the support member to produce a completed print head.

    Abstract translation: 一种用于组装多个热打印晶片以形成打印头的方法和夹具。 夹具包括固定板，该固定板具有垂直于每个并且接合在公共边缘中的准确的第一和第二平面。 其上具有第一和第二控制表面的对准杆固定到所述板上，使得控制表面位于垂直于第一平面并且平行于公共边缘的公共平面中。 打印晶片被夹在夹具之间并定位在夹具上，使得当夹具上的弹簧加载杆被用于将操作端推向控制表面时，晶片的操作端在由控制表面控制的平面中对准。 在将夹具固定在一起之前，夹具上的压缩杆用于压缩夹具之间的晶片，以产生完整的印刷晶片模块。 然后将完成的打印晶片模块对准在支撑构件上，同时使用具有位于公共平面中的多个控制表面的对准夹具。 每个印刷晶片模块的操作端被推动与对准夹具上的相邻的一对控制表面接触以对准模块，然后将模块固定到支撑构件。 其余的模块类似地对齐并固定到支撑构件以产生完成的打印头。

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