Flow equalizing device and method for gap flow field in metal revolving body micro-electrochemical machining

Abstract

The invention discloses a flow equalizing device and method for a gap flow field in metal revolving body micro-electrochemical machining, and belongs to the field of micro-electrochemical machining with low voltage and high electrolyte flow velocity. The device comprises a pressure regulating system, an electrolyte system and an electrode device, the pressure regulating system and the electrode device are arranged in a shell, a tool cathode and a metal revolving body form a machining gap, the pressure regulating system is located on the liquid outlet side of the machining gap, the pressure regulating system comprises a piston, a lead screw, a lead screw nut, a motor and a computer, and a pressure sensor is arranged on one side of the piston. The pressure sensor is used for sensing gap flow field pressure, the other side of the piston is provided with an insertion groove, one end of the lead screw penetrates through the lead screw nut to be inserted into the insertion groove, the other end of the lead screw is connected with the motor, the lead screw nut is fixedly connected to the piston, and the motor is connected with the computer to control the piston. The pressure regulating system is arranged at the liquid outlet position of the machining gap, so that the pressure of a gap flow field is regulated, the gap flow field is uniform in flow, and the stability and the machining precision of electrolytic machining can be improved.

Description

technical field [0001] The invention belongs to the field of micro-electrolytic machining with low voltage and high electrolyte flow rate, and in particular relates to a device and method for equalizing current in gap flow fields in micro-electrolytic machining of metal rotating bodies. Background technique [0002] Microstructures are widely used in aerospace, automotive, electronics, molds and other industrial fields. Some textured structures such as micro-pits are processed on the surface of parts, which can store a small amount of lubricating fluid, effectively improve friction performance, and increase heat dissipation. At present, the processing methods of micro-texture mainly include cutting processing technology, electric discharge processing technology, electric jet processing technology, laser processing technology, micro electrolytic processing technology and so on. Cutting process is easy to produce mechanical stress and thermal stress, and the efficiency is low;...

AI Technical Summary

Problems solved by technology

However, micro electrolytic machining has the problem of unstable gap flow field. The stability of the gap flow field directly affects the experimental results and machining accuracy. How to effectively improve the flow sharing of the gap flow field to improve the stability of electrolytic machining and the surface quality of the workpiece, more and more attention

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