Curved-surface component forming device and curved-surface component forming method

A curved-surface component forming device, comprising a forming die and at least one elastic compensation pad, wherein the forming die comprises a male die device and a female die device;

• the male die device and the female die device are both rigid dies;
• or one of the male die device and the female die device is a rigid die, and an other of the male die device and the female die device is an elastic die;
• an initial sheet blank is placed between the male die device and the female die device;
• when the male die device and the female die device are both rigid dies, the at least one elastic compensation pad is arranged between the male die device and the initial sheet blank and/or between the female die device and the initial sheet blank, and each of the at least one elastic compensation pad is able to contact with partial surface of the initial sheet blank;
• by moving the male die device toward the female die device and/or moving the female die device toward the male die device, the at least one elastic compensation pad and the initial sheet blank are pressed against each other, and the initial sheet blank is formed into a curved-surface formed part;
• when one of the male die device and the female die device is the rigid die and the other of the male die device and the female die device is the elastic die, by moving the male die device toward the female die device and/or moving the female die device toward the male die device, the initial sheet blank is formed into a curved-surface formed part;
• portions of the curved-surface formed part where a deviation of a contour dimension from a target curved-surface component exceed a specified value are surfaces to be compensated of the curved-surface formed part;
• the at least one elastic compensation pad is capable of being arranged between a working surface of the forming die and the surfaces to be compensated and is capable of contacting with the surfaces to be compensated.