Method of controlling electrode force of spot welding gun
    1.
    发明授权
    Method of controlling electrode force of spot welding gun 失效
    控制点焊枪电极力的方法

    公开(公告)号:US5988486A

    公开(公告)日:1999-11-23

    申请号:US28459

    申请日:1998-02-24

    摘要: In a spot welding gun which is made up of a gun main body which is operated for equalization by a driving source, a stationary electrode tip which is immovable relative to the gun main body, and a movable electrode tip which is connected to a pressing source, both electrode tips are pressed to a workpiece with an even force, to thereby perform a high quality spot welding. The driving source is controlled such that the electrode force of the stationary electrode tip, by the driving source, to the workpiece becomes substantially zero. In this manner, there occurs no difference in the electrode forces by both the electrode tips to the workpiece.

    摘要翻译: 在由用于由驱动源均衡的枪主体构成的点焊枪中,相对于枪主体不动的固定电极头和与压力源连接的可动电极头 两个电极头以均匀的力压在工件上,从而进行高质量的点焊。 驱动源受到控制,使得固定电极头的驱动源对工件的电极力基本上为零。 以这种方式,电极尖端与工件的电极力没有差别。

    Screw equipped with locking means
    3.
    发明授权
    Screw equipped with locking means 失效
    螺丝配有锁紧装置

    公开(公告)号:US4781505A

    公开(公告)日:1988-11-01

    申请号:US888651

    申请日:1986-07-03

    申请人: Hisaya Watanabe

    发明人: Hisaya Watanabe

    CPC分类号: F16B37/00 F16B39/28

    摘要: A screw equipped with locking means, includes a female thread made of a synthetic resin and a male thread made of a metal, or a female thread made of a synthetic resin and a male thread made of a synthetic resin, fitted with each other, the female thread having a double cylindrical boss portion formed at the center thereof so that the male thread may be fitted into the innerside boss portion and the thread portion of the boss may be deformed more or less when pressed against the shaft of the male thread in the direction perpendicular thereto through the resilience of the synthetic resin, which is the material of the female thread, by pressing the terminal end of the innerside boss portion against the flange portion of the male thread or a member to be fixed at the final stage of clamping the screw. A female threaded nut may have a blind bore with a projection at the bottom for engagement and deformation by a cutter on the end of a bolt.

    摘要翻译: PCT No.PCT / JP85 / 00618 Sec。 371日期:1986年9月3日 102(e)1986年9月3日PCT PCT公布1985年11月6日PCT公布。 出版物WO86 / 02980 日期:1986年5月22日。具有锁定装置的螺钉包括由合成树脂制成的阴螺纹和由金属制成的阳螺纹,或由合成树脂制成的阴螺纹和由合成树脂制成的阳螺纹, 内螺纹具有形成在其中心处的双圆柱形凸台部分,使得外螺纹可以装配在内侧凸台部分中,并且凸台的螺纹部分在压靠轴时可能会或多或少地变形 通过将作为内螺纹的材料的合成树脂的弹性通过将内侧凸起部的端部压靠在阳螺纹的凸缘部或固定部件上而与其垂直的方向上的阳螺纹 在夹紧螺钉的最后阶段。 内螺纹螺母可以具有盲孔,在底部具有突起,用于通过螺栓端部上的切割器进行接合和变形。

    Method of controlling welding current in direct-current resistance
welding machine
    4.
    发明授权
    Method of controlling welding current in direct-current resistance welding machine 失效
    直流电阻焊机焊接电流控制方法

    公开(公告)号:US5406045A

    公开(公告)日:1995-04-11

    申请号:US171673

    申请日:1993-12-22

    IPC分类号: B23K11/24 B23K11/25

    CPC分类号: B23K11/257

    摘要: A workpiece is welded successively at a plurality of welding points by a direct-current resistance welding machine with a constant current in a welding current supply period at each of the welding points, and the constant current is varied depending on whether expulsions are produced on the workpiece when it is welded, to determine an expulsion-producing limit current value as a maximum current beyond which expulsions will be produced. The workpiece is welded with a first stepped welding current having a first current value that is smaller than the expulsion-producing limit current value by a predetermined value and a second current value that is greater than the expulsion-producing limit current value, and an average current value higher than the expulsion-producing limit current value, and also with a second stepped welding current having a variation of the second current value based on whether expulsions are produced or not on the workpiece when it is welded with the first stepped welding current.

    摘要翻译: 在焊接点处的焊接电流供给期间,通过具有恒定电流的直流电阻焊接机在多个焊接点处连续焊接工件,并且恒定电流根据是否在 工件被焊接时,确定产生出力的极限电流值作为最大电流,超过其将被产生排出。 工件用第一阶梯焊接电流焊接,第一阶梯焊接电流的第一电流值小于产生驱动极限电流值预定值,第二电流值大于驱出产生极限电流值,平均值 电流值高于排出产生极限电流值,并且还具有基于当用第一阶梯焊接电流焊接工件时在工件上是否产生排出而具有第二电流值变化的第二阶梯焊接电流。