Flat plate cutting recessing machine with tool bit transmission mounting structure

The utility model discloses a flat plate cutting dadoing machine with a tool bit transmission mounting structure, which comprises a working platform, sliding rails are fixedly connected to the top ends of the two sides of the working platform, one sides of the two sliding rails are respectively connected with one sides of two L-shaped sliding blocks in a sliding manner, one end of one L-shaped sliding block is fixedly connected with a U-shaped toothed belt, and the other end of the other L-shaped sliding block is fixedly connected with a cutter bit transmission mounting structure. A limiting cylinder is fixedly connected to the bottom end of one side of the working platform, a limiting block is slidably connected into the limiting cylinder, one end of the U-shaped toothed belt penetrates through the limiting cylinder to be fixedly connected with one side of the limiting block, a forward and reverse motor is fixedly arranged on one side in the working platform, and the output end of the forward and reverse mot