Adaptive Tool Cathode and Complicated Internal Channel Electrolytic Finishing Processing Method
A tool cathode and self-adaptive technology, applied in the direction of electric processing equipment, processing electrodes, electrode manufacturing, etc., can solve problems such as uneven removal amount and damage to the inner channel wall
Active Publication Date: 2022-04-22
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology
At present, the main finishing technologies include mechanical polishing, magnetic polishing, abrasive flow and laser finishing, etc. These technologies can basically meet the requirements for simple channels, but there are still some problems for variable cross-section channels, thin-walled component channels and complex curved channels. Larger deficiencies, prone to uneven removal, damage to the wall of the inner channel, etc.
Method used
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Embodiment Construction
[0027] The present invention will be further described in detail below in conjunction with specific drawings.
[0028] Such as figure 1 As shown, the self-adaptive tool cathode proposed by the present invention includes a wear-resistant nylon cloth bag 1, a positioning steel ball 2, a positioning screw 3; an adaptive steel ball 4; a tightening hoop 5; and a conductive column 6. Place the positioning steel ball 2 in the middle of the bottom of the nylon cloth bag 1, and consolidate it with the nylon cloth bag through insulating glue and plastic positioning screws 3; the lower self-adaptive steel ball 4 is tightly packed around the positioning steel ball at the bottom of the cloth bag. The outer surface of the positioning steel balls is closely attached and piled up into a cylinder, the height of the cylinder is generally 3-5mm; the number of adaptive steel balls in the upper part gradually decreases with the increase of the height, forming a cone with a large volume at the bott...
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Abstract
The invention provides an electrolytic light finishing processing method for self-adaptive tool cathodes and complex internal channels, which belongs to the technical field of special processing. The self-adaptive tool cathode is composed of a wear-resistant nylon bag, positioning steel balls, positioning screws, self-adapting steel balls, tight hoops and conductive columns. The hoop seals the self-adaptive steel ball and the positioning steel ball in the cloth bag to form a graded granary-shaped tool cathode with a cylinder at the bottom and a cone at the top. Adaptive steel balls can roll in the airtight nylon bag to adapt to the change of inner channel section. The conductive column is consolidated with the spindle of the machine tool through the conductive flexible shaft, and the axial reciprocating feed of the flexible cathode in the inner channel is realized under the drive of the spindle, and the electrolytic finishing process of the complex inner channel is completed. This novel self-adaptive tool has good cathode flexibility, and can self-adapt to any constant cross-section and various variable cross-section complex internal channels such as circular, rectangular and rhombus, so as to improve the accessibility of electrolytic machining and realize electrolytic finishing of complex internal channels.
Description
technical field [0001] The invention relates to an electrolytic light finishing processing method for self-adaptive tool cathodes and complex inner channels, and belongs to the technical field of special processing. Background technique [0002] Metal additive manufacturing technology can realize the forming of complex metal components and the intensification of multiple parts, so as to reshape the structure of complex structural parts completely oriented by product performance, with more freedom in design and integral molding, and is used in aerospace Manufacture of key complex and high-performance metal parts in the fields of biomedical, hydraulic and mold manufacturing. For example, NASA used additive manufacturing technology to process the GRCo-84 copper alloy engine combustion chamber in 2015. There are more than 200 complex channels between the inner and outer walls. These channels are three-dimensional special-shaped twisted structures with variable cross-sections. ...
Claims
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IPC IPC(8): B23H3/04B23H9/00
CPCB23H3/04B23H9/00
Inventor 朱荻王登勇安林超
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS