Radial drilling machine stroke fixing device

The utility model relates to the technical field of radial drilling machines, in particular to a radial drilling machine stroke fixing device which comprises a transverse plate and a base, the stroke fixing device is arranged on the outer wall of the transverse plate and comprises a connecting box and a rack, the inner wall of the connecting box is connected with the transverse plate in a sliding mode, and the outer wall of the rack is fixedly connected with the transverse plate. The end of the rack is meshed with the gear, the outer wall of the round rod is movably connected with a connecting box, and the upper end of the connecting box is fixedly connected with a first motor. A reciprocating lead screw drives a transverse plate connected to a lead screw nut to move up and down, the transverse plate drives a drill bit at the lower end of a connecting box to move up and down to a proper position making contact with a workpiece, a protection block at the lower end of the connecting box can also fall down, and