Dismounting and replacing device for die of numerical control press

The utility model provides a numerical control press machine die dismounting and replacing device which comprises a bottom plate, a jack is fixedly connected to the center of the upper surface of the bottom plate, the output end of the jack is fixedly connected with the lower surface of a fixing block, and moving grooves are symmetrically formed in the front end of the fixing block. Two cavities are formed in the fixing block through a partition plate, the two moving grooves communicate with the two cavities, moving rods are arranged in the two cavities, clamping blocks are fixedly connected to the inner sides of the front ends of the two moving rods and penetrate through the moving grooves to extend to the outer sides, and hydraulic cylinders are fixedly connected to the two sides of the fixing block. And the telescopic ends of the two hydraulic cylinders penetrate through the fixing blocks, extend into the corresponding cavities and are fixedly connected with the moving rods, the bottoms of the front ends o