Motor power output structure and servo press

The motor power output structure comprises a gear shaft, a locking piece and a supporting assembly, the gear shaft is provided with a shaft body A and a shaft body B, the shaft body A is provided with a connecting hole in which a motor output shaft is inserted along the axis, and the periphery of the shaft body A is further provided with a through groove communicated with the connecting hole; the locking piece locks the shaft body A to the output shaft, the supporting assembly comprises a lower block body, an upper block body and a bearing, the bearing is clamped between the upper block body and the lower block body, and the shaft body B is inserted into the bearing. The locking piece is tensioned on the outer side of the shaft body A, so that the shaft body A shrinks and is tightly hooped on the outer side of the output shaft of the servo motor, the gear shaft and the output shaft are stably connected, torque is transmitted between the gear shaft and the output shaft through a cylindrical surface, and the wo