Eccentric shaft trimming die

The utility model discloses an eccentric shaft trimming die which comprises a lower die and a punch arranged right above the lower die, the punch is provided with a cutting edge used for cutting blank flash and used for being connected with a lifting mechanism, and the lower die and the punch are respectively provided with a lower positioning cavity and an upper positioning cavity which are matched with each other to form a positioning cavity. An eccentric block upper cavity and a concentric block upper cavity are formed in the two ends of the positioning upper cavity respectively, and a downward anti-warping protrusion is arranged on the cavity wall of the concentric block upper cavity. According to the eccentric shaft trimming die, the anti-warping protrusion is arranged on the cavity wall of the upper cavity of the concentric block, when trimming is conducted, the anti-warping protrusion presses downwards to act on a blank, the concentric block part, with the small outer diameter, of the blank can be preve