Universal head structure

The utility model provides a universal head structure, which mainly comprises a convex point rotary table, a concave point rotary table, a combining body, a combining rod, s spring, a combining bolt, a combining thrombus and a tightening nut. A number of convex points are arranged in the combining body. A number of concave points are arranged under the combining round plate, which can turn left and right. The combining rod combines the convex point rotary table and the concave point rotary table. The concave point rotary table is arranged with the combining bolt and can turn up and down. The utility model is characterized in that processing accuracy of the mating surfaces need not to be high, so production cost is reduced. The universal head provides unchangeable angles, so required angles can be got when used.