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    • 3. 发明授权
    • Method of controlling welding current in direct-current resistance
welding machine
    • 直流电阻焊机焊接电流控制方法
    • US5406045A
    • 1995-04-11
    • US171673
    • 1993-12-22
    • Daisuke KiriishiHisaya WatanabeKensaku KaneyasuTomohiko ItoYukihiro Yaguchi
    • Daisuke KiriishiHisaya WatanabeKensaku KaneyasuTomohiko ItoYukihiro Yaguchi
    • B23K11/24B23K11/25
    • B23K11/257
    • 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.
    • 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。
    • 9. 发明授权
    • Picture processing method in optical measuring apparatus
    • 光学测量仪器中的图像处理方法
    • US5311289A
    • 1994-05-10
    • US936301
    • 1992-08-28
    • Naoji YamaokaManabu TuchidaYukihiro Yaguchi
    • Naoji YamaokaManabu TuchidaYukihiro Yaguchi
    • G06T7/00G01B11/24
    • G06T7/004G06T2207/30164
    • An optical measuring apparatus for use in this method has a projector for radiating a slit light on a workpiece and an image sensing device for picturing an optically cross-sectional image drawn by the slit light radiated on the workpiece. An optical axis of the slit light and an optical axis of the image sensing device cross each other at an oblique angle. Setting windows are set at predetermined positions of the optically cross-sectional image on a screen of the image sensing device. A position of center of gravity of each optically cross-sectional image in each of the windows is measured. An amount of displacement in an X-axis direction of the optically cross-sectional image on the screen is measured. A rate of magnification of the optically cross-sectional image in a Y-axis direction is calculated from the amount of displacement. Setting positions of the windows in the Y-axis direction and sizes thereof in the Y-axis direction are changed depending on the rate of magnification.
    • 在该方法中使用的光学测量装置具有用于在工件上照射狭缝光的投影仪和用于绘制由辐射在工件上的狭缝光绘制的光学截面图像的图像感测装置。 狭缝光的光轴和图像感测装置的光轴以倾斜角彼此交叉。 设置窗口设置在图像感测装置的屏幕上的光学截面图像的预定位置处。 测量每个窗口中每个光学横截面图像的重心位置。 测量屏幕上的光学横截面图像的X轴方向上的位移量。 根据位移量计算光学截面图像在Y轴方向上的倍率。 Y轴方向上的窗口的设定位置和Y轴方向的尺寸根据倍率而变化。