Rapid clamping device for honing thin-walled holes

The utility model relates to a rapid clamping device for a honing thin-wall type hole, which comprises a positioning backing ring, a locking spring, a pin shaft and an eccentric locking disc, the eccentric locking disc is arranged on the positioning backing ring through the pin shaft, and the locking spring acts on the eccentric locking disc to drive the eccentric locking disc to rotate around thepin shaft. And the eccentric part of the eccentric locking disc enters the inner hole area of the positioning backing ring and is tightly pressed on the side wall of the thin-wall hole part in the positioning backing ring, so that the thin-wall hole part is quickly clamped, and the rotating direction B of the eccentric locking disc under the action of the locking spring is opposite to the rotating direction A of the main shaft of the honing machine. The clamp has the advantages of being simple in structure, capable of rapidly clamping and positioning, convenient to produce in batches, capableof guaranteeing quality a