Metal tube electrochemical machining device

The utility model provides an electrochemical machining device for a metal tube. The device comprises a base and a stand column installed on one side of the base. Wherein an insulating groove is fixedly formed in the base; tank liquid is contained in the tank; wherein a plurality of anode metal bars are inserted into the bath solution, the plurality of anode metal bars form a ring shape, and the central axis of the ring shape coincides with the central axis of the cathode metal tube core, so that the efficiency of transferring metal elements to the cathode metal tube core in each direction isrelatively balanced in the electrochemical process, and the wall thickness of the metal tube in each direction is uniform; a lifting table is installed on the stand column in a sliding mode, and a cathode metal pipe core used for forming a metal pipe is installed below the lifting table. The electrochemical machining device for the metal pipe can machine and form the metal pipe at a time, and thedefects that the wall thic