Metal plate stamping composite die

The utility model relates to the technical field of sheet metal machining, and discloses a sheet metal stamping composite die which comprises a workbench, supporting legs are fixedly installed at the bottom end of the workbench, a guide rod is fixedly installed at the top end of the workbench, a movable frame is arranged on one side of the guide rod, an upper pressing plate is fixedly installed at the bottom end of the movable frame, and a lower pressing plate is fixedly installed at the bottom end of the upper pressing plate. A stamping block is arranged at the bottom of the upper pressing plate, a stamping hole is formed in the bottom of the stamping block, a lower pressing plate is fixedly installed at the top end of the workbench, a groove is formed in the bottom of the upper pressing plate, a spring is arranged in the groove, an elastic block is arranged at the bottom of the spring, and a cutter is fixedly installed at the bottom end of the movable frame. A cutting groove is formed in the bottom of the c