Electrolytic polishing device

Abstract

The invention discloses an electrolytic polishing device used for arc surfaces of metal working pieces; the electrochemical polishing device comprises a cathode electrolytic groove, an electrolytic liquid storage groove, a washing groove, an acid-proof pump, a communication pipe, a cathode board, practical arc cathode and the like; the shape of the upper part of the practical arc cathode is processed according to the arc surface of a working piece; in a polishing procedure, a distance between the upper part of the practical arc cathode and to-be-polished surface of the working piece is kept evenly; the bottom part thereof is closely contacted with the cathode board; the cathode electrolytic groove is communicated with the electrolytic liquid storage tank by the communication pipe; electrolytic liquid is driven by the acid-proof pump; thus, electrolytic polishing liquid in two grooves forms three-dimensional circulation; the temperature and the condensation of the electrolytic polishing liquid in the cathode electrolytic groove are kept stably; impellers are mounted on the bottom part of the washing groove; in a using procedure, the impellers are rotated so as to drive washing liquid in the grooves to form vortex; the arc polishing surface of the working piece is brushed; washing efficiency is increased; and the electrolytic polishing device is characterized by low cost, simple and convenient operation and can satisfy the electrolytic polishing demands of different arc surfaces of metal working pieces.

Description

technical field [0001] The invention belongs to the technical field of metal surface treatment devices, and relates to an electrolytic polishing device for arc-shaped surfaces of metal workpieces. Background technique [0002] Electropolishing is a method of finishing the surface of a metal workpiece. The method is to place the metal workpiece in an electrolytic polishing tank filled with electrolytic polishing liquid, and energize the electrolytic polishing liquid for electrolysis. As the electrolysis proceeds, a liquid film with high viscosity is formed on the surface of the metal workpiece. The thickness distribution of the liquid film on the uneven surface of the metal workpiece is uneven. The liquid film on the surface of the convex part is thin, while the liquid film on the surface of the rest Thick, so the resistance of the anode surface is not the same everywhere. The raised part of the metal workpiece has low resistance and high current density, which makes the rai...

AI Technical Summary

Problems solved by technology

Therefore, current electrolytic polishing devices can only be used for the processing of metal workpiece planes

Second, during the electrolytic polishing process, a large amount of heat will be generated, which is not easy to dissipate quickly, and the heat will easily affect the surface quality of the workpiece; and the electrolytic process will reduce the concentration of the electrolyte, which is not conducive to efficient, stable and continuous production requirements

However, the structure using the pressure infusion plug is only suitable for laboratory research, and cannot meet the requirements of industrial production

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