Electrolytic polishing device for inner pipe of stainless steel pipe and using method

The invention relates to the technical field of stainless steel tube electrolytic polishing, in particular to a stainless steel tube inner tube electrolytic polishing device and a using method. The stainless steel pipe to be polished is placed on the steel pipe placing frame, the front end of the stainless steel pipe to be polished is connected with the steel pipe connector, the anode electrode piece is fixed to the stainless steel pipe to be polished, the front end of the conductive rod extends into the front end of a pipe cavity of the stainless steel pipe to be polished, the electrolyte water pump is started firstly, and electrolyte flows into the pipe cavity of the stainless steel pipe to be polished from the connector; and at the moment, the electric box is started, the driving device is started after a circuit is conducted, the driving device drives the traction frame to pull the conductive rod out of the pipe cavity of the stainless steel pipe to be polished at a certain speed, and electrolytic polishi