Adjusting mechanism and radial drilling machine thereof

The utility model discloses an adjusting mechanism and a radial drilling machine thereof, the adjusting mechanism comprises an adjusting assembly, the adjusting assembly comprises a U-shaped base, the top of the U-shaped base is rotatably connected with a rotating seat, the bottom of the rotating seat is embedded with an incomplete gear, the bottom of the incomplete gear is engaged with a driving toothed plate and a positioning assembly, and the positioning assembly comprises a U-shaped frame. And a strip-shaped clamping block is arranged in the U-shaped frame. By means of the arrangement mode that the adjusting assembly is matched with the radial drilling machine, angle adjusting work can be carried out on a positioned workpiece through matching of the U-shaped base, the rotating base, the incomplete gear and the driving toothed plate, when other faces of the irregular workpiece need to be machined, the workpiece does not need to be positioned after being released, and the machining efficiency is improved. A