Quick die changing device for forging die holder

The utility model discloses a quick die changing device for forging die holders, which comprises a front side clamping mechanism, a rear side clamping mechanism, a left side fixing seat and a right side clamping mechanism which are respectively arranged on an upper die holder and a lower die holder, the front side clamping mechanism comprises a pressing block, an L-shaped pressing plate and a front hydraulic cylinder, and the right side clamping mechanism is arranged on the right side of the lower die holder. The right side clamping mechanism comprises a right fixing base, a wedge key pulled in the right fixing base and a wedge key hydraulic cylinder controlling the wedge key to slide. A rear side clamping mechanism is arranged on the rear side of the lower die base and comprises a rear fixing base, an ejector block arranged in the rear fixing base and a rear hydraulic cylinder pushing the ejector block to slide. The front hydraulic cylinder, the rear hydraulic cylinder and the wedge key hydraulic cylinder ar