Horizontal micro-electric spark machine tool and method for performing online processing by applying same

Abstract

The invention provides a horizontal micro-electric spark machine tool for manufacturing a microelectrode. The machine tool comprises a machine tool base (1), an X-Y two-dimensional workbench (2), an electrode main shaft (3), a grinding wheel grinding mechanism (4), a Z direction workbench (6) and a wire electric spark grinding mechanism (7), wherein the grinding wheel grinding mechanism (4) and the wire electric spark grinding mechanism (7) are fixedly arranged on the machine tool base (1) and positioned on both sides of the Z direction workbench (6) respectively; the electrode main shaft (3) is arranged on the X-Y workbench (2); a tool electrode to be processed is arranged on the electrode main shaft (3); and the X-Y two-dimensional workbench (2) drives the tool electrode to move relative to the carborundum grinding wheel grinding mechanism (4) and / or the wire electric spark grinding mechanism (7) so as to finish online manufacturing of the microelectrode. Online grinding of a carborundum grinding wheel is combined with online grinding of wire electric sparks and a high-accuracy optical grating ruler is adopted, so that high-efficiency and high-accuracy manufacturing of a micro-scale electrode is realized and high reliability and good economic benefit are achieved.

Description

technical field [0001] The invention relates to the field of micro electric discharge machining, in particular to a horizontal micro electric discharge machine tool and an online processing method using the horizontal micro electric discharge machine tool. Background technique [0002] In the research of droplet ejection technology, the quality of micro-nozzle will directly affect the success or failure of droplet ejection. The current technologies for micro-nozzle processing mainly include glass drawing method, micro-EDM and mechanical processing. The glass microneedle drawing method can be used for the production of a single nozzle, but the consistency of the micro-nozzle production is worth studying; the mechanical processing method is mainly used for the production of nozzles with large apertures, and is not suitable for the production of micron-sized nozzles; micro-EDM technology As a non-contact electrical discharge machining technology, there is no macroscopic force ...

AI Technical Summary

Problems solved by technology

There are inevitably two shortcomings in the off-line production method: first, the serious electrode loss phenomenon in EDM makes the shape of the formed electrode change quickly and cannot be processed with high precision; second, due to the inevitable secondary installation of the electrode There are installation errors and deformation errors, and it is difficult to ensure the perpendicularity between the electrode and the worktable and the coaxiality between the electrode and the rotary spindle. Requirements for Micro EDM

Due to the influence of the rotation accuracy and radial runout of the grinding wheel during the processing, it is difficult to realize the production of micron-scale electrodes

[0006] So far, there is no electrode fabrication method that can not only improve the efficiency of microelectrode fabrication, but also ensure the machining accuracy of microelectrodes.

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