Electrolytic machining tool and method for groove group of expanding-comb-shaped liquid sealing structure

Abstract

The invention relates to an electrolytic machining tool and method for a groove group of an expanding-comb-shaped liquid sealing structure, and belongs to the field of electrochemical machining. The tool comprises a tool base (2), an elastomer (4), a comb-shaped liquid sealing body (5) and a negative plate (6). The comb-shaped liquid sealing body (5) is made from an insulating material. The rear end of the comb-shaped liquid sealing body (5) is connected with the tool base (2) through the elastomer (4). The front end of the comb-shaped liquid sealing body (5) is provided with an ordered protruding structure matched with a hollowed-out seam group structure of the negative plate (6), and the height of the protruding structure is greater than the thickness of the negative plate. During working, the ordered protruding structure of the comb-shaped liquid sealing body (5) is inserted into the hollowed-out seam group structure of the negative plate (6) and can slide relative to the negative plate mutually. The sections (9) of electrolyte runners are a plurality of separated rectangular runners always until the groove group structure is machined and the problem that flow of electrolyte is split by clearance grooves during electrolytic machining for the groove group is thoroughly solved.

Description

technical field [0001] The invention relates to a group-groove electrolytic machining tool and a machining method with a telescoping comb-like liquid-sealing structure, belonging to the field of electrochemical machining. [0002] technical background [0003] In the fields of fuel cells and chemical heat exchange, there are a large number of parts with a group groove structure. The flow channel formed by the interconnected group groove structure can guide the liquid chemical substance to flow according to the designed flow mode, promote the generation of chemical reaction and the exchange of heat. In the production process of such parts, the processing quality of the runner will directly affect the function and life of the product. However, the flow channel composed of dozens or even hundreds of grooves has a complex structure and narrow flow channel. After the flow channel is processed, there must be no structures that affect the flow field such as burrs and sharp edges. T...

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Problems solved by technology

[0006] The purpose of the present invention is to solve the problem that the electrolyte is lost from the empty slits between the cathode columnar projections during the electrolytic machining of group-slot parts, causing the electrolyte that should flow to the processing area to be diverted, reducing the ability of the electrolyte to discharge products during the processing gap, resulting in To solve the practical problem of short circuit, a new type of group groove electrolytic machining tool and machining method is provided

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