The invention discloses an
automatic indexing reaming device which aims to meet the demand for reaming single cylinder workpieces efficiently. The
automatic indexing reaming device comprises an indexing disk which is connected to a
machine frame in a rotating mode. A pawl is arranged at one end of the cylindrical indexing disk. An oscillating rod is hinged to the indexing disk. The other end of the oscillating rod is provided with a strip hole and is connected with a
crank as a driving link. A pawl abutting against a
ratchet wheel is hinged to the oscillating rod. A feeding wheel is arranged at the other end, without the
ratchet wheel, of the indexing disk. Charging holes are evenly formed in the circumferential edge of the feeding wheel. A sliding way is arranged above the feeding wheel. A reaming
station is arranged on the side, in the forward rotation direction, of the charging holes, a pressing wheel is arranged on the reaming
station and located outside the charging holes, a
reamer which can axially move in a reciprocating mode is arranged at the position, on the side of the charging holes, of the reaming
station, and a sliding way used for conveying the workpieces out is arranged above the feeding wheel. By the adoption of the
automatic indexing reaming device, the procedure that the single cylinder workpieces are reamed in batches is completed, manual work is not needed basically, it is only required that the rotation speed of the
crank and the action of the
reamer are coordinated, and workpieces are reamed efficiently in batches.