Coaxial electrolyte flushing method and device for array group electrode micro-hole electromachining

Abstract

The invention discloses a coaxial electrolyte flushing device and method for array group electrode micro-hole electromachining. The coaxial electrolyte flushing device comprises a sealing cavity, array group electrodes, an electrolyte sealing cavity, an electrolyte groove, an insulating gasket and electromagnetic chucks. When the electrolyte sealing cavity is driven by a machine tool main shaft to move to be attached to the insulating gasket, an insulating cavity composed of the electrolyte sealing cavity, the insulating gasket and a workpiece to be machined is formed through the attraction function of the electromagnetic chucks; and the diameter of a single cathode of the array group electrodes is smaller than the diameter of a single hole in the workpiece to be machined, and an electrolyte sealing flow diversion cavity is formed through the cathodes and the corresponding holes. The coaxial electrolyte flushing method is simple and compact in structure, coaxial machining is conducted on micro holes through the array group electrodes, it is guaranteed electrolytes flow into the machining region along the side walls of the cathodes of the array group electrodes, the flowing speed of the electrolytes at different positions is consistent by keeping the pressure of the electrolyte sealing cavity consistent, machining stability and group control machining consistency can be improved, operation is convenient, and implementation is easy.

Description

technical field [0001] The invention relates to the technical field of electrical machining, and belongs to special machining, in particular to a coaxial liquid flushing method and device for micro-hole electrical machining of array group electrodes. Background technique [0002] With the development of science and technology, and the demand for product precision and miniaturization in the industrial field, the miniaturization of mechanical parts has become a research hotspot in the current manufacturing field, and has broad application prospects and prospects in the fields of biomedicine, precision instruments and sensor manufacturing. important research significance. The processing and manufacturing of micro-pore structures with diameters smaller than 1mm is one of the key technologies to achieve these goals. [0003] The methods for realizing micro-hole processing include mechanical processing methods, special processing methods and composite processing methods, and ea...

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Problems solved by technology

[0006] The purpose of the present invention is to solve the problems of different gap electrolyte flow rates existing in the electromachining of array group holes, resulting in material removal speed in different regions, poor consistency of group hole sizes after processing, etc., and to provide a method that can improve the stability of electromachining, A coaxial liquid flushing method and device for micro-hole electromachining of array group electrodes that are consistent in processing, easy to operate, and easy to implement. This method can ensure that the electrolyte flows into the processing area along the cathode side wall of the tool, and is closed by controlling the electrolyte. The cavity pressure is kept consistent, which can achieve the purpose of consistent electrolyte flow rate at different positions

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