Device for preparing spiral cemented carbide micro milling cutter

Abstract

The invention provides a device for preparing a spiral cemented carbide micro milling cutter by using the micro-electrolysis technology. The device comprises an electrolyte slot (1), a tubular electrode (2), a tubular electrode clamp (3), a spiral cemented carbide micro milling cutter (4), a cutter clamp (5), a first motor (6), a lead screw (7), a second motor (8), an electrolyte slot liquid inlet tube (9), an electrolyte storage tank (10), an electrolyte slot liquid discharge tube (11), a pressure pump (12), a filter (13), a valve (14), a moving platform (15) and a working platform (16). According to the device for preparing the spiral cemented carbide micro milling cutter provided by the invention, the spiral cemented carbide micro milling cutter can be prepared in high precision, high efficiency and low cost by using the advantages that the dissolution locality and the surface quality control ability of the micro-electrolysis are good, the electric field in the tubular electrode electrolytic machining is mainly distributed nearby the end face of the electrode, and the stray corrosion of the sodium nitrate solution, the sodium chlorate solution or the mixed solution is relative small.

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) EDM wire electrode 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 the h...

AI Technical Summary

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

Images