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A control method of an electric discharge machining power supply capable of automatically boosting voltage

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: 2017-11-14
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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  • A control method of an electric discharge machining power supply capable of automatically boosting voltage
  • A control method of an electric discharge machining power supply capable of automatically boosting voltage

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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 present invention provides a control method for an EDM power supply that can automatically boost voltage, including steps such as rectification, filtering, voltage regulation, pulse generation, pulse detection, and pulse regulation. The voltage regulation circuit provided by the present invention is generated according to the rectification and filtering circuit. After the voltage is stabilized, the adjustable pulse high-voltage part can be adjusted adaptively to match the change of the power supply gap. The control method of the EDM power supply that can automatically boost the voltage provided by the present invention can copy the mask with high precision during the discharge breakdown process in the case of a gradual gap by controlling the breakdown adaptive pulse power supply that can automatically boost the voltage Shape, improve processing efficiency and precision of processing size.

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 Patents(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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