Tool for machining rear axle speed reducer shell of industrial and commercial vehicle

The utility model relates to a tool for machining a rear axle speed reducer shell of an industrial and commercial vehicle, which comprises a tool table, a clamping mechanism is arranged on the upper surface of the tool table, a machining table is fixed on the upper surface of the tool table, a positioning piece is fixed on the upper surface of the machining table, a supporting plate is fixed on the back face of the tool table, and the supporting plate is fixed on the back face of the tool table. A top plate is fixed to the upper surface of the supporting plate, and a machining mechanism is arranged on the lower surface of the top plate. According to the tool for machining the rear axle speed reducer shell of the industrial and commercial vehicle, through cooperation of a second electric push rod and a connecting table, the lifting effect of the connecting table can be achieved, so that the containing space of the shell is increased, a drill bit can be conveniently replaced and maintained through threaded conn