Precise regulating and controlling device for electrolytic machining flow field of closed structure blade

Abstract

The embodiment of the invention provides a precise regulating and controlling device for an electrolytic machining flow field of a closed structure blade. The device comprises an electrolytic machining device used for conducting electrolytic machining on the closed structure blade and an assembling device used for assembling the electrolytic machining device; the electrolytic machining device comprises a blade back cathode provided with a blade back side auxiliary channel, a blade basin cathode provided with a blade basin side auxiliary channel and a main channel in the same direction as the blade back side auxiliary channel and the blade basin side auxiliary channel; and the blade back cathode and the blade basin cathode are structurally symmetrical. According to the precise regulating and controlling device, the blade back side auxiliary channel is arranged on the blade back cathode, the blade basin side auxiliary channel is arranged on the blade basin cathode, after liquid supply on the two sides and the main channel are combined, a certain back pressure effect is achieved on the front section of the flow field of the main channel, the vortex and hole phenomena caused by shock waves of a liquid inlet are eliminated, and furthermore, through the pressure adjusting effect of auxiliary liquid, the stability of the flowing state of the liquid inlet section is effectively improved.

Description

technical field [0001] The invention relates to the technical field of electrolytic machining of closed structure blades, in particular to a precise control device for flow field of closed structure blade electrolytic machining. Background technique [0002] In the design of fans and compressors of turbofan aero-generators for military and civilian use, a large number of components such as integral blisks and closed rectifiers are used. The materials of such components are mostly high-temperature alloys, titanium alloys, etc., and the cutting performance is poor; the cascades are dense, the blades are bent and twisted thin, and the flow channels are inclined; the blade surface contour accuracy and position accuracy are high. These characteristics make traditional machining It becomes very difficult, manifested in severe machining deformation and difficult to control the amount of deformation, severe tool wear, resulting in extremely low processing efficiency, high cost, and ...

AI Technical Summary

Problems solved by technology

It is often difficult to find the ideal projection feed angle required by electrolytic machining. The difference in local curvature will cause the cathode surface to be too large in θ angle and be in a "lateral machining" state. Therefore, the edge profile of the blade profile is out of tolerance in actual machining. Very high, becoming a processing bottleneck

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