The invention discloses a large-
diameter corrugated
pipe vibration forming device and a method. The forming device mainly consists of a mandrel, a corrugated core mold, a connecting disc, forming wheels, a support frame and a vibrating device. The corrugated core mold coats the mandrel, and is connected with a
flange at the bottom of the mandrel and the connecting disc at the end part to form an integral mold. A
pipe blank coats the outer surface of the corrugated core mold; left and right end clamping jaws are arranged at the two end parts of the
pipe blank; and the forming wheels are distributed on the outer side of the pipe blank. After the clamping jaws clamp the pipe blank, the pipe blank rotates around the axis, the vibration excitation is applied to the forming wheels, and the forming wheels radially and axially feed the pipe blank. All traditional
forming processes are synthesized; the
friction force between the
metal pipe blank and the forming mold is effectively reduced by a vibration exciting device; and when high-frequency vibration excitation is applied, the deformation resistance of the
metal pipe blank can be reduced, the corrugation and breakage generation and development of the pipe blank are inhibited, the size precision of large-wave high corrugated pipes is guaranteed, and the
surface smoothness of formed workpieces is increased.