管路安装中,尤其是大直径管道安装,管道连接处的放线、划线是较麻烦的。为此,设计制造了管道相贯交线划线规,可划出圆柱体与圆柱体,圆柱体和曲面体的相贯交线。划线规划线方法如图所示。划线时,定杆1对准工件5上的相贯中心点,定杆轴心线 Pipeline installation, especially large-diameter pipe installation, pipe connections at the pay-off line is more cumbersome. To this end, the design and manufacture of intersecting intersecting pipelines crossed lines, can be drawn out of the cylinder and cylinder, cylinder and surface of the intersection of the intersection line. Scribe the planning line method as shown. Marking, the fixed rod 1 aligned with the workpiece on the center of the intersection 5, the axis of the fixed rod