Electric auxiliary bulging device for special-shaped parts

The invention discloses an electrical auxiliary bulging device for special-shaped parts. The device comprises a male mold, a female mold, a blank holder and a sleeve. The female mold is arranged in the sleeve. The blank holder is arranged on the upper end of the female mold and is used to press the outer edge of a cylindrical plate material arranged in the female mold. The male mold is above the center of the female mold in an up-down lifting mode, and can be seamlessly embedded in the blank holder. The inner part of the blank holder is provided with an electrode a. The lower end of the electrode a is in contact with the outer edge of the cylindrical plate material, and the other end is connected to a positive electrode of a power supply. The cylindrical plate material is filled with a mixture of particles and viscous fluid. The two sides of the side wall of the female mold radially drill holes at different heights and install an electrode b. One end of the electrode b is provided witha spring and connected t