Stretch bending die for automobile window frame

The utility model discloses an automobile window frame stretch bending die which comprises a base box and a supporting platform installed above the base box, an inner cam is installed on the upper end face of the supporting platform, a motor is installed in the base box, the output end of the motor is connected with a rotating shaft, and the output end of the rotating shaft penetrates through the supporting platform to be fixedly connected with the lower end of the inner cam. A rotating shaft is installed above the inner cam, and a stretch bending arm is installed on the end face of the rotating shaft. Stretch-bending bases are installed on the two sides of the supporting platform, a stretch-bending box is installed above the stretch-bending bases, a stretch-bending block is fixedly connected to the end, close to a stretch-bending arm, of the stretch-bending box, a sliding arm is installed outside the stretch-bending arm, sliding wheels are installed at the lower end of the sliding arm, and a containing cavit