该简易凹圆弧工具,可对有端面及外圆的凹型弧面的工件进行切削,具有制造简单、操作方便、使用效果良好等优点。现将操作原理说明如下:将工具装夹在刀架体1上,不影响其它刀具的安装和刀架的转位。当切削外圆凹弧面时,将旋转体6安放在工具体9的上孔内。扳到手柄就可以使旋 The simple concave circular arc tool has the advantages of simple manufacturing, convenient operation and good using effect for the workpiece with the concave curved surface with the end surface and the outer circular surface. Now the operating principle is as follows: The tool is mounted on the tool holder body 1, does not affect the other tool installation and turret indexing. When cutting the outer concave arc surface, the rotating body 6 is placed in the upper body of the tool body 9. Pull the handle can make spin