Intelligent control pulse power supply system and control method for multi-station blade electrolytic machining

Abstract

The invention relates to an intelligent control pulse power supply system for multi-station blade electrolytic machining and a control method. The method rectifies a commercial direct-current power supply by adopting a high-current rectifying module; the intelligent pulse module is small in size, and can be even arranged in a multi-station machine tool body; therefore, the mutually independent andmatched intelligent pulse modules can generate and control processing pulse signals of a blade basin cathode and a blade back cathode; the wiring distance between a processing area and the intelligent pulse module is obviously reduced, so that the parasitic inductance of a loop is reduced to the minimum, the waveform distortion is reduced to the minimum, the anti-interference capability of the power supply is improved, and the method is an effective way for improving the blade processing precision and the production efficiency.

Description

technical field [0001] The invention relates to an intelligent control pulse power supply system for electrolytic machining, in particular to an intelligent high-frequency pulse power supply system for electrolytic machining of multi-station blisk blades. Background technique [0002] Blades are the most critical parts in the manufacture of aero-engines. The traditional cutting method takes more than 30% of the labor of the whole machine. Because of its complex structure, high machining accuracy requirements, thin and twisted blade surface, difficult processing of materials, and mass production, it is very difficult to manufacture, so special Suitable for electrolytic machining. In the 1970s, a major change occurred in the blade technology, and electrolytic machining became the main technology of blade body processing, which achieved remarkable technical and economic effects. [0003] Electrolytic machining technology is a processing technology in which metal workpieces un...

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Problems solved by technology

[0005] At present, in electrolytic machining, a single machine tool is usually equipped with a single pulse power supply. When the blisk blades are mass-produced, multiple machine tools need to be equipped with multiple pulse power supplies at the same time, and the purchase cost of the power supply is relatively high.

In addition, due to the limitation of the size of electronic components and heat dissipation requirements, the pulse power supply for electrolytic processing is relatively large, and the connection length between the pulse power supply and the processing area is relatively long. When the pulse current value is large and the frequency is high, the pulse waveform transmission distortion is relatively large Seriously, it is difficult to improve the machining accuracy and repeat machining accuracy of blisk blades

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