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Composite pulse electrosparking spray explosion power source, system and method

A composite pulse and processing system technology, applied in electric processing equipment, metal processing equipment, circuits, etc., can solve problems such as low energy efficiency ratio of spark power supply, maximize energy utilization, enhance removal effect, and optimize blasting effect Effect

Pending Publication Date: 2018-11-06
DALIAN JIAOTONG UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] According to the technical problem of the low energy efficiency ratio of the existing spark power supply proposed above, a composite pulse electric discharge machining spray explosion power supply is provided

Method used

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  • Composite pulse electrosparking spray explosion power source, system and method
  • Composite pulse electrosparking spray explosion power source, system and method
  • Composite pulse electrosparking spray explosion power source, system and method

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Embodiment 1

[0035]This embodiment provides a compound pulse electric discharge machining explosion power supply and a metal and composite material high-efficiency throwing electric discharge machining system composed of the power supply. The low two-way pulses are combined into a two-way ladder square wave. The pulse is transmitted to the tool electrode 2 through the line, and at this time, the tool electrode 2 is driven by the electric discharge machine head 1 to make a feed towards the workpiece 3 . When the tool electrode 2 and the workpiece 3 reach a certain distance, firstly, the first-order pulse of the second-order ladder pulse issued by the pulse output power supply 8 breaks down the gap working fluid 4, and discharges the workpiece 3 so that it is in the The molten state, and then through the explosive force emitted by the second-order pulse, its processed products can be thrown out. After the power supply discharges the machining gap once, the discharge gap is judged by the gap...

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Abstract

The invention provides a composite pulse electrosparking spray explosion power source, system and method. The power source comprises a waveform generation circuit, a comparison circuit, an amplifyingcircuit and a power switch circuit which are sequentially connected. The waveform generation circuit generates second-level step wave origin pulses. The comparison circuit adopts a high circuit and alow circuit of comparison voltage of different threshold values to compare the comparison voltage with pulse signals, so that two ways of square wave pulse signals with the same phase positions, the same period and the duty ratio forming the proportional relation are formed. The two ways of square wave signals control on and of a high-voltage switch pipe and a low-voltage switch pipe correspondingly after being treated by the amplifying circuit, and thus second-level step waves are generated. Preceding levels in the second-level step waves are breakdown pulses and have break-down and corrosioneffects on discharging gaps. The rear levels provide explosive force pulses. According to the technical scheme, the problems that in the prior art, the energy efficiency is low and the spray explosion effect is poor are solved.

Description

technical field [0001] The present invention relates to an electric spark power supply, in particular to a composite pulse electric spark machining explosion power supply, system and method. Background technique [0002] At present, in the field of electric discharge machining, spark discharge is usually used to remove metal to realize the shape processing of metal materials. This process method makes up for the lack of complex and poor flexibility of processing equipment in the field of mechanical processing, and is widely promoted in the mold industry, defense industry and micro-manufacturing industry. As an important part of the EDM system, the EDM power supply provides the pulse energy required in the machining process through spark discharge. Its performance has a relatively large impact on the EDM accuracy, production efficiency, tool electrode loss, and power utilization. big impact. However, the current application of EDM systems has technical problems such as low ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23H1/00B23H1/02
CPCB23H1/00B23H1/02
Inventor 刘宇栾安科马付建张生芳张文超沙智华杨大鹏
Owner DALIAN JIAOTONG UNIVERSITY
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