Angle head positioning device

The utility model relates to the technical field of machine tool machining, and discloses an angle head positioning device which comprises a machine tool spindle sleeve, an angle head and a spindle connecting ferrule, the spindle connecting ferrule is connected to the machine tool spindle sleeve, a positioning disc is connected to the end, away from the machine tool spindle sleeve, of the spindle connecting ferrule, and four V-shaped chutes are formed in the lower end of the positioning disc; the four V-shaped chutes are annularly and uniformly distributed about the axis of the positioning disc, a mounting flange plate is arranged below the positioning disc, the angle head is arranged on the mounting surface of the lower end of the mounting flange plate, four positioning columns are arranged above the mounting flange plate, and bevel edges matched with the V-shaped chutes are formed in the two sides of the upper end of each positioning column. The positioning firmness of the angle head can be improved, the po