Movable expanding machine

The utility model moveable expanding machine, belonging to the steel pipe processing field, consisting of an expander, a working bushing, an oil cylinder, a supporting frame and a small hydraulic station. A connecting mechanism and a hydraulic ram are arranged on the machine frame, the expander is driven by the hydraulic ram through the connecting mechanism, the expander is connected on the hydraulic ram through the working bushing, the expander consists of an expanding head, a sliding block, an expanding block, a positioning disk, a connecting nut, and a pull rod, the utility model has advantages of simple structure, compact structure, small volume, cheap price, and is a moveable expanding machine suitable to be used by the steel pipe manufacturer and the construction unit.