Polishing rod base body

Abstract

The utility model belongs to the technical field of polishing appliance production and provides a polishing rod base body which comprises a rigid machining base body, a first elastic layer and a second elastic layer, the first elastic layer tightly wraps the outer side of the rigid machining base body, the second elastic layer wraps the outer side of the first elastic layer and is bonded with the first elastic layer, and the second elastic layer is bonded with the rigid machining base body. The shore hardness of the second elastic layer is smaller than that of the first elastic layer. According to the polishing rod base body, the first elastic layer with the hardness between that of the rigid machining base body and that of the second elastic layer is arranged between the rigid machining base body and the second elastic layer, and the first elastic layer is tightly wrapped on the outer side of the rigid machining base body, so that relative displacement between the outer rubber layer and the rigid machining base body can be avoided, and high elasticity of the polishing rod base body can be guaranteed.

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