螺旋孔的内平面锪窝,过去用刀杆上掏一四方孔,用高速钢刀头锪平。这种方法加工较小孔锪平时,刀杆会因掏刀强度过低而折断,且操作不便,每加工一孔均上下很热的刀头,工人手指易被烧伤和刮破。我厂工艺科和装配车间革新一种反向锪平面铣刀,克服了上述缺点,在摇臂钻床上加工零件效果良好,每班可 Spiral hole in the plane of the popliteal fossa, in the past with a knife on the dig a square hole, with high-speed steel blade 锪 level. This method of processing smaller holes 锪 usually, the knife will be too low due to dig strength knife and broken, and the operation inconvenience, each processing a hole up and down very hot knife, the worker’s fingers easily burned and scratched. Our factory technology department and assembly shop to innovate a reverse 锪 plane cutter, to overcome the above shortcomings in the radial drilling machine parts processing works well, each class can be