Motor with expansion elastic clamp

The utility model discloses a motor with an expansion elastic clamp, which comprises a motor and a motor shaft arranged on the motor, and further comprises a flange sleeved at the front end of the motor shaft, a grinding wheel is detachably mounted on the mounting end face of the flange, a concave hole is axially formed in the flange, a detachable expansion sleeve is arranged on the motor shaft in the concave hole, and the expansion sleeve is sleeved on the flange. The contact face of the expansion sleeve and the motor shaft is in conical surface structure fit, a first connecting hole is formed in the front end of the motor shaft in the axial direction, a first locking piece is arranged in the first connecting hole, the end face of one end of the first locking piece is tightly attached to the end face of the corresponding end of the expansion sleeve, and the expansion sleeve can expand outwards through the conical surface structure under the action of the first locking piece. The outer circumferential wall of