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Wire-cut electrical discharge machining (WEDM) nanosecond pulse power supply system and control method

A technology of electric spark wire and pulse power supply, which is applied in the direction of electric pulse generator circuit, energy storage element to generate pulse, circuit, etc., can solve the problem of cutting surface finish limit and other problems, and achieve the goal of improving surface finish, reducing loss and avoiding energy loss. Effect

Active Publication Date: 2017-11-07
万江华
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The pulse width of the existing wire cutting pulse power output is us level, which limits the surface finish of cutting

Method used

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  • Wire-cut electrical discharge machining (WEDM) nanosecond pulse power supply system and control method
  • Wire-cut electrical discharge machining (WEDM) nanosecond pulse power supply system and control method
  • Wire-cut electrical discharge machining (WEDM) nanosecond pulse power supply system and control method

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Embodiment Construction

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

[0031] Such as figure 1 As shown, a nanosecond-level pulse power supply system for wire electric discharge cutting includes a power supply body, and the power supply body includes a microcontroller system module 3, a rectification module 10, a power conversion module 9 and a high-frequency pulse module 8, and the The microcontroller system module 3 adopts an ARM architecture micro-control chip, and one end of the microcontroller system module 3 is externally connected with an auxiliary power supply input interface 1 and several input and output interfaces, and the input and output interfaces include a pulse output enabling input interface 2, Silk speed control interface 4, configuration number interface 5 and communication interface 6, the other end of the microcontroller system...

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Abstract

The invention discloses a wire-cut electrical discharge machining (WEDM) nanosecond pulse power supply system, which comprises a power supply body. The power supply body comprises a microcontroller system module, a rectification module, an electric energy conversion module and a high-frequency pulse module. One end of the microcontroller system module is externally connected with an auxiliary power supply input interface and a plurality of input / output interfaces. The input / output interfaces comprise a pulse output enable input interface, a wire speed control interface, a configuration number interface and a communication interface. The other end of the microcontroller system module is connected with the electric energy conversion module and the high-frequency pulse module; the electric energy conversion module and the high-frequency pulse module are connected mutually; one end of the rectification module is externally provided with a power supply input interface; the other end of the rectification module is connected with a pulse output interface and the high-frequency pulse module; and the other end of the high-frequency pulse module is externally connected with the pulse output interface. The system realizes stable voltage and current, small single pulse energy output and good workpiece cutting surface smoothness.

Description

technical field [0001] The invention belongs to the technical field of power supply for electric discharge cutting, and in particular relates to a nanosecond-level pulse power supply system and a control method for wire electric discharge cutting. Background technique [0002] Wire EDM technology is a technology that uses continuously moving thin metal wires (mostly molybdenum wires) as electrodes to perform pulse EDM on conductive workpieces to etch the workpiece and cut it into shape. [0003] A voltage is applied to both ends of the molybdenum wire electrode and the conductive workpiece. When the voltage reaches a certain threshold, the air gap is broken down and is in a low-resistance state. At this time, certain techniques are required to limit the sharp rise of the current, otherwise the electronic devices and molybdenum wire will be burned. Burn the workpiece. In the existing technology, the usual solution is to connect a high-power resistor in series in the discharg...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M9/06H03K3/57B23H7/14
CPCH02M11/00H03K3/57B23H7/14H02M1/0012Y02B70/10
Inventor 于寿鹏方恒阳刘永钦万江华
Owner 万江华
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