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过去,我厂在船台上镗艉轴孔时,都是使用的实芯镗杆;而镗杆的定位,则是根据照光后在轴毂端面上划出的基准圆来进行的。采用这种工艺,主机先通过照光初步定位,然后使安装在主机输出端上的投射仪射出的一束带十字线的光线,投射到安放在各道轴毂内光板架上的光板上;再调整光板架,使光板上的十字线与投光十字线重合,即投射仪在各光板分别聚焦后,盘车调整投射仪,使主轴线与投射光线焦点处在同一轴线上(图1)。下一步,换下划线光板,用专用划线规在轴毂端面上划出镗孔线,拆下光
In the past, my factory in the slipway bore hole boring, are the use of solid boring bar; and boring bar positioning, it is based on the illumination of the shaft in the end face of the reference circle to carry out. Using this process, the host first through the light of the initial positioning, and then installed in the host output of the projectors projection of a cross-line with the light projected onto the board placed in the hub of light board rack light board; Adjust the light frame so that the cross lines on the light plate coincide with the light cross lines. After the projectors focus on the light panels, adjust the projector so that the main axis and the projected light focus on the same axis (Figure 1). Next, replace the crossed light board, with a special marking gauge in the shaft end face to draw a boring line, remove the light