Expansion sleeve clamp

The utility model relates to the technical field of automobile parts, and provides an expansion sleeve clamp which comprises a taper shaft, an elastic expansion sleeve is matched with the conical surface of the right end of the taper shaft, a positioning block and an O-shaped sealing ring are further matched with the outer wall of the left end of the elastic expansion sleeve, and the positioning block is connected with the taper shaft. The left end of the elastic expansion sleeve is fixedly connected with a guide sleeve and a guide plate, the guide plate is fixedly connected with a first pull rod, and the first pull rod is fixedly connected with a pull rod connecting sleeve in the lathe spindle; the pull rod connecting sleeve, the connecting flange, the taper shaft and the positioning block are provided with air channels which are sequentially communicated, one end of each air channel is communicated with an air source of a lathe, and the other end of each air channel is communicated with the air holes of the