A kind of micro-hole electrolytic machining machine vision positioning and navigation method

Abstract

A microporous electrolytic machining machine vision positioning and navigation method. First, the vision device is used to install the target on the pad, and then the pixel equivalent of the vision device is calibrated, and then the electrode wire is used as the origin. The guide rail is the x and y axes of the coordinate system, establish the electrode wire coordinate system, calibrate the coordinate system of the vision device, and then calibrate the coordinate system offset of the vision device, and then place the workpiece to be processed on the fixture, and pass the vision device When the microhole to be processed is detected, the computer calculates the coordinates x and y of its center through the image processing program, and calculates the displacement information, and sends the displacement information to the control cabinet control workbench, so that the microhole to be processed and the electrode wire are aligned , electrolytically process the microhole, and then carry out the electrolytic machining of the next microhole. The present invention uses vision to detect the center of the microhole and completes the alignment of its electrode wire, which can greatly improve the accuracy and efficiency of electrolytic machining.

Description

technical field [0001] The invention relates to the field of advanced manufacturing technology, in particular to a machine vision positioning and navigation method for micropore electrolytic processing. Background technique [0002] With the gradual development of precision, high performance and miniaturization of products, components with micro-sized structures have been widely used in many fields. Laser-electrolytic composite machining is used for the micro-hole machining of aerospace engine turbine blades, especially group hole machining. The laser pre-processes the micro-holes, and then electrolytically performs secondary processing. The electrolytic processing is mainly to remove the recast layer and improve the processing quality of the micro-holes. When electrolytic secondary machining of micro-holes, the electrode wire needs to be aligned with the center of the micro-hole first, the electrode wire is inserted into the micro-hole, and the electrode wire and the workp...

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Problems solved by technology

After reviewing domestic and foreign documents, no publications have been found that combine visual measurement technology with micropore electrolytic machining.

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