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Control method of electrical discharge machining power supply capable of realizing automatic boosting

A technology of automatic boosting and control method, which is applied in the field of power processing, can solve the problems of not meeting the requirements and accuracy of processing size, and achieve the effect of improving processing efficiency and processing size accuracy

Inactive Publication Date: 2015-12-30
FOSHAN GEWEI TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Chinese patent CN200920353325 discloses a current-type energy-saving EDM pulse power supply with adjustable no-load voltage. This pulse power supply cannot meet the requirements and accuracy of the required processing size even when the gap is variable.

Method used

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  • Control method of electrical discharge machining power supply capable of realizing automatic boosting
  • Control method of electrical discharge machining power supply capable of realizing automatic boosting

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Experimental program
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Embodiment

[0023] Embodiment: A control method of an electric discharge machining power supply that can automatically boost voltage.

[0024] refer to figure 1 As shown, a control method of an EDM power supply that can automatically boost voltage includes the following steps:

[0025] S1. Rectification; input 220V AC mains power into rectification circuit 1, after being rectified by rectification circuit 1, 220V AC mains power becomes 220V DC power;

[0026] S2. Filtering; after step S1, input the 220V direct current into the filter circuit 2, and remove the harmonics through the filter circuit 2;

[0027] S3. Voltage adjustment: input the DC power after harmonic removal to the voltage adjustment circuit, and the voltage adjustment circuit adjusts the DC voltage, so that the voltage can be adaptively changed, and the voltage can be automatically boosted to 50-1000V;

[0028] S4. Generate pulses; input the regulated voltage to the pulse forming circuit, and the pulse forming circuit gen...

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Abstract

The invention provides a control method of an electrical discharge machining power supply capable of realizing automatic boosting. The method comprises steps of rectification, filtration, voltage regulation, pulse generation, pulse detection, pulse regulation and the like. After a voltage regulation circuit generates stable voltage according to rectification and filtration circuits, a pulse high-voltage part is adjusted to be able to realize self-adaptive regulation to match the change of a power supply clearance. According to the control method of the electrical discharge machining power supply capable of realizing automatic boosting, through control on the breakdown self-adaptive pulse power supply capable of realizing automatic boosting, the mask shape can be copied with high precision and the machining efficiency and the machining size precision can be improved in the discharge breakdown process under the condition of gradual clearance change.

Description

technical field [0001] The invention relates to the field of power processing, in particular to a control method for an electric spark processing power source capable of automatically boosting voltage. Background technique [0002] The breakdown self-adaptive EDM power supply based on automatic boost is used in mask processing and other fields, especially in the gradual gap breakdown EDM, where the processing environment is under the constraints of the mask, using the discharge The vertical characteristic of processing replicates the shape of the mask, requiring high processing dimensional accuracy and other characteristics. Improving the precise control of the processing power supply can effectively improve the accuracy of the processing size. Due to the limitation of the mask, the discharge gap in the processing process is a process of continuous enlargement, especially in the case of large gaps and variable gaps, the accuracy of discharge breakdown is low. [0003] At p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23H1/00
Inventor 郭钟宁姚震吴明黄志刚刘江文
Owner FOSHAN GEWEI TECH CO LTD
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