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Ultrasonic vibration modulation bidirectional narrow-pulse-width micro-energy pulse power supply

A technology of pulse power supply and ultrasonic vibration, which is used in circuits, manufacturing tools, electric machining equipment, etc., to achieve the needs of micro-precision machining, improve gap discharge conditions, and improve machining speed and machining accuracy.

Inactive Publication Date: 2013-11-20
HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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  • Abstract
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  • Ultrasonic vibration modulation bidirectional narrow-pulse-width micro-energy pulse power supply
  • Ultrasonic vibration modulation bidirectional narrow-pulse-width micro-energy pulse power supply
  • Ultrasonic vibration modulation bidirectional narrow-pulse-width micro-energy pulse power supply

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Embodiment Construction

[0032] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0033] The structure diagram of the main body of the ultrasonic vibration modulation bidirectional narrow pulse width micro-energy pulse power supply of the present invention is as attachedfigure 1 shown. The main part of the pulse power supply of the present invention includes a pulse power supply and an ultrasonic vibration system. The ultrasonic vibration system drives the tool electrode or the workpiece to perform ultrasonic vibration. The frequency of tool electrode or workpiece ultrasonic vibration is the same as the frequency of pulse power chopping, which is controlled by the same set of signals output by the main control unit, which provides a premise for the organic combination of ultrasonic vibration and pulse discharge for EDM.

[0034] The working principle of the pulse power supply of the present invention:

[0035] (1) In the p...

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Abstract

The invention provides an ultrasonic vibration modulation bidirectional narrow-pulse-width micro-energy pulse power supply which aims to improve the micro-electric discharge machining precision and realize an optimal machining effect. A main body portion of the ultrasonic vibration modulation bidirectional narrow-pulse-width micro-energy pulse power supply comprises a pulse power supply and an ultrasonic vibration system. The ultrasonic vibration system drives a tool electrode or workpiece to ultrasonically vibrate. The ultrasonic vibration frequency of the tool electrode or workpiece is identical to the chopping frequency of the pulse power supply, and a precondition foundation can be provided for organically combining ultrasonic vibration with pulse discharge to carry out discharge machining under the control effect of a group of identical signals outputted by a main control unit. The ultrasonic vibration modulation bidirectional narrow-pulse-width micro-energy pulse power supply has the advantages that bidirectional narrow-pulse-width pulses are generated by the aid of ultrasonic vibration modulation, single micro-energy pulses capable of discharging are obtained, discharge channels are stretched, scraps can be effectively removed, quick de-ionization processing can be carried out, gap discharge conditions are improved, the machining speed is increased, the machining precision is enhanced, and the ultrasonic vibration modulation bidirectional narrow-pulse-width micro-energy pulse power supply has important engineering application value.

Description

technical field [0001] The invention relates to a pulse power supply, in particular to a micro-energy pulse power supply. Background technique [0002] With the continuous development of science and technology, the requirements for machining accuracy of workpieces are getting higher and higher, so ultra-precision machining is becoming more and more important. In order to achieve ultra-precision micro-EDM, in addition to key technologies such as precision motion platform, numerical control system, electrode on-line production and compensation, the micro-energy pulse power supply is the core of micro-EDM. [0003] In terms of micro-energy pulse power supply, there are currently two main types: one is RC pulse power supply, which has a simple structure, large instantaneous release energy, and can reach a high discharge frequency, but the discharge energy is uncontrollable and the power utilization rate is low. And the existence of stray capacitance between the electrodes leads...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23H1/02
Inventor 黄瑞宁楼云江黄志鹏
Owner HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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