A device for preparing helical carbide micro milling cutter

Abstract

The invention provides a device for preparing helical carbide micro milling cutters using micro electrolysis technology, which is characterized in that it includes: electrolyte tank (1), tubular electrode (2), tubular electrode fixture (3), spiral hard alloy Quality alloy micro milling cutter (4), tool holder (5), motor one (6), lead screw (7), motor two (8), electrolyte tank inlet pipe (9), electrolyte storage box (10 ), electrolyte tank drain pipe (11), pressure pump (12), filter (13), valve (14), motion platform (15), workbench (16), using the good dissolution localization of fine electrolysis And surface quality control ability, using the electric field concentrated distribution near the end face of the electrode in electrolytic machining of tubular electrodes, taking advantage of the relatively small stray corrosion of sodium nitrate solution, sodium chlorate solution or their mixed solution, can achieve high precision and high efficiency , low-cost preparation of spiral carbide micro milling cutter.

Description

technical field [0001] The invention belongs to a milling cutter preparation device, in particular to a device for preparing a spiral hard alloy micro milling cutter by using micro electrolysis. Background technique [0002] At present, there are a variety of processing devices that can produce micro milling cutters, but there are still many serious problems in many aspects. The existing process devices for preparing micro milling cutters include: (1) wire electric discharge grinding device; (2) laser processing device; (3) precision micro grinding device; (4) focused ion beam sputtering device; 5) Electrolytic EDM composite micromachining device. When using the electric discharge wire electrode grinding device to prepare, electric erosion pits will be formed on the cutting edge and cutting surface of the milling cutter tool, thereby forming a surface deterioration layer, microscopic cracks and residual tensile stress; The defect of the electrode grinding device is that th...

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Problems solved by technology

When using the electric discharge wire electrode grinding device to prepare, electric erosion pits will be formed on the cutting edge and cutting surface of the milling cutter tool, thereby forming a surface deterioration layer, microscopic cracks and residual tensile stress; The defect of the electrode grinding device is that the heat conduction during the laser machining of the micro milling cutter will form a heat affected zone, and there are also microscopic cracks and thermal stress in this area; the use of the precision micro grinding device can meet the requirements of the micro milling cutter preparation to a certain extent. However, due to the influence of the grinding force, the minimum diameter of the tool that can be stably obtained is limited; when the focused ion beam sputtering device is used to prepare the micro milling cutter, the processing efficiency is too low and the cost is too high while ensuring high precision. High disadvantages, it is impossible to realize large-scale preparation of micro-milling cutters; electrolytic EDM has the defects of serious material overcutting and difficult to guarantee machining accuracy

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