The invention relates to a high-frequency direct-current heating auxiliary rolling device added on a
machine tool. The high-frequency direct-current heating auxiliary rolling device comprises a rolling device, a heating component and a loading component; the rolling device is fixedly mounted on a cutter frame of the
machine tool; and a rolling head is towards parts to be machined. The heating component comprises a high-frequency direct-current power supply, two
copper electrodes and two electric brushes; and the high-frequency direct-current power supply, the two electric brushes, the two
copper electrodes and the parts to be machined are connected through leads to form a
closed loop. The loading component comprises an electric
brush frame, two insulation fixed thimbles and an insulation revolving thimble; and in the horizontal direction of the
machine tool, a
machine tool tail base, the insulation revolving thimble, the first insulation fixed thimble, the first
copper electrode, the parts to be machined, the second
copper electrode, the second insulation fixed thimble and a
power tool power chuck are coaxially clamped in sequence. The invention further relates to a
machining method of the high-frequency direct-current heating auxiliary rolling device. The device is simple in structure, convenient to operate and high in practicability, and belongs to the field of
metal machining equipment.