Non-conducting material spark milling electrode tip

Abstract

The invention relates to a non-conductive material electrical spark milling electrode tip, belonging to the machine work field, which comprises a brushing tip (1), a positive tool electrode (2), an insulated spacer sleeve (3), a negative tool electrode (4), a collet chuck (5), an electromagnetic oscillator (6), a spindle system (7), a spindle head (8), a fluid charging pipe (9), an insulated jacket (10), a collet chuck locknut (11), a negative tool electrode brush (12), a positive tool electrode brush (13), and water-base conductive liquid (14). During machining, the water-base conductive liquid (14) is brushed on the surface of the non-conductive material workpiece by the brushing tip (1); when the electromagnetic oscillator (6) drives the positive and negative tool electrodes to lift, the conductive liquid is absorbed to flow to the lower ends of the two electrodes along the surface of the non-conductive workpiece, so as to enable the ends of the electrodes to generate spark discharge on the surface of the non-conductive workpiece and process the electrical spark milling work. The invention has the advantages of simple structure, high efficiency, low cost, and other advantages.

Description

technical field [0001] The invention belongs to the field of mechanical processing and relates to an electric spark milling electrode head of a non-conductive material. Background technique [0002] At present, the electrical machining methods of non-conductive materials studied by scholars at home and abroad mainly include: high-voltage EDM, auxiliary electrode machining, electrolytic EDM composite machining, etc. [0003] High-voltage EDM is to put an insulating workpiece between the pointed electrode and the flat electrode, and apply a DC or power frequency AC high voltage between the two electrodes, so that the air near the pointed electrode is broken down, and glow discharge erosion occurs. Due to the parasitic capacitance between the two poles, the power supply becomes high-frequency or pulsed, and a large glow current can flow. The voltage of the high-voltage and high-frequency power supply it uses is 5000-6000 volts, the highest voltage is 12000 volts, and the frequ...

AI Technical Summary

Problems solved by technology

This processing method has problems such as low efficiency, high energy consumption, low processing accuracy, poor surface quality, and harmful electrolytic gas is emitted during processing, and the processing environment is poor.

Aiming at the problems of low efficiency and high energy consumption in the common non-conductive material electrolytic EDM composite machining technology, Liu Yonghong proposed the non-conductive material gas-filled electrolytic EDM composite machining technology. Although the processing productivity of the required non-conductive phase has been greatly improved, it is still low in actual production, and the processing accuracy and surface quality are poor. At the same time, harmful electrolytic gas is emitted during the processing, and the processing environment is poor.

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