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High instantaneous energy density electric discharge high speed milling power supply device

An energy density, high-speed milling technology, applied in electric machining equipment, metal processing equipment, circuits, etc., can solve the problems of low discharge energy, low power, and limit the removal efficiency of EDM materials, to increase energy density, reduce Relative loss, the effect of improving processing efficiency

Active Publication Date: 2016-05-04
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

At present, pulse power supplies at home and abroad generally have the disadvantages of small discharge energy and low power, which limits the further improvement of EDM material removal efficiency.

Method used

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  • High instantaneous energy density electric discharge high speed milling power supply device
  • High instantaneous energy density electric discharge high speed milling power supply device

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Embodiment Construction

[0012] see figure 1 , The high instantaneous energy density electric discharge high-speed milling power supply device of the present invention includes a high-power rectification filter circuit 1, a breakdown voltage regulation circuit 2, a high-power low-voltage pulse conversion circuit 3, an isolator 4, and a current and voltage detection circuit 6 , Control circuit 7. The high-power rectifying and filtering circuit 1 converts the alternating current into direct current, and provides it to the breakdown voltage regulating circuit 2 and the high-power low-voltage pulse transforming circuit 3; the breakdown voltage regulating circuit 2 provides the pulse peak voltage according to the control signal of the control circuit 7. The adjustable breakdown voltage is used to break down the discharge gap. The gap breakdown voltage provided by the breakdown voltage adjustment circuit 2 can be adjusted from 100 to 1000V; the discharge gap can be adjusted by adjusting the breakdown voltag...

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Abstract

The invention relates to an electric spark machining power supply device, i.e., a high-instantaneous-energy-density electric spark high-speed milling power supply device, in the field of machining. The device comprises a high-power rectifying and filtering circuit 1, a breakdown voltage regulating circuit 2, a high-power low-voltage pulse conversion circuit 3, an isolator 4, a current and voltage detection circuit 6 and a control circuit 7. According to the power supply device, on one hand, higher breakdown voltage can be provided for a discharge gap to increase the discharge gap and reduce collision probability of machining chips and a tool electrode, so as to reduce relative loss of the tool electrode, and on the other hand, the power supply device can also provide higher peak current for a discharge passage, so that the energy density of a discharge passage acting on the surface of a workpiece is guaranteed, and the machining efficiency can be greatly increased.

Description

technical field [0001] The invention relates to a power supply device for electric spark high-speed milling with high instantaneous energy density, belonging to the field of mechanical processing. Background technique [0002] Realizing high-speed and high-efficiency processing of materials with high hardness, high strength, high toughness and high brittleness has always been the goal in the field of material processing. It is difficult to process it efficiently by traditional processing methods, and the processing cost is generally high. Electric discharge machining provides an effective method for the processing of the above materials. Compared with expensive high-speed milling equipment and processing costs, the electric discharge machining method reflects its good economy. EDM is a machining method that removes material by continuous spark discharge between the electrode and the workpiece to be machined. Since there is no direct contact between the tool electrode and t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23H1/02
Inventor 刘永红张彦振王飞唐泽民申泱纪仁杰蔡宝平
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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