Square ram automatic anti-scraping milling head

The invention relates to a square ram automatic anti-scraping milling head. The square ram automatic anti-scraping milling head comprises a shell, a main shaft box and a main shaft, the shell is L-shaped, an input shaft and a transmission shaft are arranged in the shell, the main shaft box is connected with the right end of the shell, an output shaft is arranged in the main shaft box, the input shaft is arranged in the vertical cavity of the shell, a handle is arranged in the vertical cavity, the axial outer side of the handle is connected with a bearing seat on the inner wall of the shell, the transmission shaft is arranged in the transverse cavity of the shell, the left end of the transmission shaft is connected with the input shaft through a pair of spiral bevel gears I, the right end of the transmission shaft is connected with the output shaft through a pair of spiral bevel gears II, a milling cutter is arranged on the front end surface of the output shaft, the upper end of the vertical cavity of the shell is provided with a box body, the upper end of the box body is connected with a pull head cylinder through a pull head cylinder pop rivet, the main shaft is vertically arranged in a ram assembly, and the lower end of the main shaft is connected with the handle. The square ram automatic anti-scraping milling head can process the workpiece bottom of a traditional planer-type pentahedral machining center, which cannot be processed, and can stretch into the inner cavity of a narrow and long box body to process the upper surface.