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

A processing tool and comb-shaped technology, which is applied in the field of electrolytic processing tools and processing in group grooves, can solve the problems of short circuit, reducing the ability of the electrolyte to discharge products in the processing gap, and the loss of electrolyte, so as to increase the process and steps, and improve the processing. Stability, stray corrosion prevention effect

Active Publication Date: 2017-05-17
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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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 proc

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

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[0019] Specific implementation method

[0020] Implementation of the present invention-"group tank electrolytic machining tool with telescopic comb-shaped liquid sealing structure" such as figure 1 As shown, it connects the workpiece 7 with the positive electrode of the electrochemical machining power supply 1, and the machining tool composed of four parts of the cathode plate 6, the comb sealing liquid 5, the elastic body 4 and the tool holder 2 is connected with the negative electrode of the electrochemical machining power supply 1. During the processing, the high-speed and high-pressure electrolyte enters from the liquid inlet area 3, passes through the gap between the workpiece 7 and the cathode plate 6, and flows out through the liquid outlet area 8, taking away the electrolysis products and heat generated by the processing. During the feeding process of the cathode plate 6, the elastic body 4 keeps the comb-shaped sealing liquid 5 in close contact with the surface of the wor...

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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...

Claims

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Application Information

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IPC IPC(8): B23H1/00B23H1/04
CPCB23H1/00B23H1/04
Inventor 朱荻刘嘉姜小琛
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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