The invention discloses a fixed-length
cutting machine and a
cutting method of an HDPE double-wall corrugated
pipe. The
cutting machine comprises a
workbench and a cutting mechanism. A first support,a second support and a third support are arranged on the
workbench, a V-shaped swing rod is rotationally connected to the first support, and a spring rod is arranged between the V-shaped swing rod andthe first support. A conveying plate and a storage plate are connected to the
workbench in a sliding manner, object carrying tables are distributed on the storage plate at equal intervals, and clamping assemblies are evenly distributed on the object carrying tables. A telescopic mechanism and a waste frame are arranged on the third support, and the telescopic mechanism is connected with a cuttingmechanism. The cutting method comprises the following steps that (a),
pipe charging is conducted; (b), conveying is conducted; and (c), cutting is conducted; The cutting
machine is novel in structure, high in
automation degree, reliable in fixation, capable of achieving the purpose of fixed-length cutting, high in cutting precision and suitable for actual requirements, the cutting method is automatic and efficient, corrugated pipes are
cut one by one in order, errors are not likely to happen, the labor intensity of workers is reduced, and labor saving and convenience are achieved.