大修C620—1B和C616普通车床时,经常因为研磨棒不好,而增加床尾孔的修研工时,并且精度要求难以保证。如使用图所示的可调整研磨棒,不仅床尾孔的精度要求极容易保证,而且经久耐用,操作十分方便。研磨棒心轴材料为45钢,轴向有六条均布的锥度为1:15的长槽,调整时,可供研磨条沿轴向移动,使径向张开,调整范围为0～3毫米。六条研磨条材料为耐磨铸铁,为使研磨条在轴向移 Overhaul C620-1B and C616 ordinary lathe, often because the grinding rod is not good, but to increase the tail hole repair time, and the accuracy of the requirements is difficult to guarantee. As shown in the use of adjustable grinding rod, not only the accuracy of the tailhole hole extremely easy to ensure, and durable, easy to operate. Grinding rod mandrel material is 45 steel, the axial six uniform taper 1:15 long groove, adjust the grinding rod for axial movement, the radial expansion, the adjustment range of 0 to 3 mm . The six strips of wear-resistant cast iron material, in order to make the grinding rod in the axial shift