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Deep microporous ultrasound-assisted electrosparking system based on inner impact liquid of main shaft

A technology of electric spark and liquid flushing, which is applied in the aerospace manufacturing and aviation fields, can solve the problems of decreased processing speed, difficulty in effectively discharging electric corrosion products from the processing area, and poor stability of electric discharge processing, etc., and achieves the effect of improving processing efficiency

Inactive Publication Date: 2019-07-26
XIAN SPACE ENGINE CO LTD
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Problems solved by technology

[0003] At present, deep microholes are mostly manufactured by CNC drilling and milling technology and CNC EDM microhole machining technology. After using CNC drilling and milling technology, the hole state consistency is poor and there are burrs. Affect the fuel atomization effect; the state of the hole is better and there is no burr generated by the numerical control EDM micro-hole machining technology, but with the increase of the small hole depth-to-diameter ratio, it is difficult for the electro-erosion products in the EDM process to be effectively discharged from the processing area. The stability of EDM is deteriorated and the processing speed is reduced

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  • Deep microporous ultrasound-assisted electrosparking system based on inner impact liquid of main shaft

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Embodiment Construction

[0029] The present invention is a processing system for improving the stability of deep microhole electric discharge machining and the ratio of small hole depth to diameter by adding an ultrasonic vibration device based on workpiece vibration and a flushing device in the main shaft to the electric discharge machining system. The system is suitable for Micro-hole processing of metal materials with a hole diameter less than 1mm and a depth-to-diameter ratio greater than 10:1.

[0030] The workpiece to be processed is connected to the ultrasonic frequency output end of the ultrasonic vibration device through the tooling, and the ultrasonic frequency vibration of the workpiece is used during EDM to improve the stability of the machining process. The ultrasonic vibration device is composed of an ultrasonic generator, a transducer and a horn. Under the action of the excitation signal of the ultrasonic generator, the transducer converts the electrical energy provided by the ultrasonic...

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Abstract

The invention belongs to the technical field of special processing of aviation and aerospace manufacturing and in particular relates to a deep microporous ultrasound-assisted electrosparking system based on n inner impact liquid of a main shaft. The system comprises an ultrasonic vibrating device and a main shaft inner impact liquid device. A to-be-processed workpiece is mounted at the output endof the ultrasonic vibrating device and is driven to vibrate supersonically through the ultrasonic vibrating device, and the main shaft inner impact liquid device is used for providing a continuous working liquid to the surface of the to-be-processed workpiece and carrying out deep microporous processing on the workpiece in a rotary processing mode under a fine discharging energy.

Description

technical field [0001] The invention belongs to the technical field of aviation and aerospace manufacturing, and mainly relates to an ultrasonic-assisted electric discharge machining system based on internal flushing of a main shaft for high-efficiency machining of deep microholes. Background technique [0002] With the continuous development of miniaturized structures and systems, tiny holes (diameter less than 1 mm) with a large depth-to-diameter ratio have been widely used in thrust chambers and turbopumps of aerospace liquid rocket engines, and with the development of aerospace liquid power for high The demand for precision and high quality deep microporous components is increasing day by day. [0003] At present, deep microholes are mostly manufactured by CNC drilling and milling technology and CNC EDM microhole machining technology. After using CNC drilling and milling technology, the hole state consistency is poor and there are burrs. Affect the fuel atomization effe...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23H9/14B06B3/02
CPCB06B3/02B23H9/14
Inventor 李护林耿雪松宋国新谢合瑞马长进
Owner XIAN SPACE ENGINE CO LTD
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