Unlock instant, AI-driven research and patent intelligence for your innovation.

Electric discharge machining power supply unit

A technology of power supply device and electrical discharge machining, which is applied in the direction of electric processing equipment, metal processing equipment, circuits, etc., can solve the problem of voltage rise speed reduction and achieve the effect of impact suppression

Active Publication Date: 2019-05-10
MITSUBISHI ELECTRIC CORP
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, if the inter-electrode parallel capacitor becomes larger, the rising speed of the voltage will be slower

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Electric discharge machining power supply unit
  • Electric discharge machining power supply unit
  • Electric discharge machining power supply unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0040] figure 1 It is a diagram showing the circuit configuration of the electric discharge machining power supply device according to the first embodiment. The electrical discharge machining power supply device 1 has: an electrode 2 for causing a current to flow between the electrode 2 and a workpiece 3; 1. The voltage is applied to the path A1; the transformer 6 is arranged on the second path A2 connected to the inter-pole 4; the second power supply unit 8 controls the current flowing from the first power supply unit 5 into the parasitic capacitance 7 of the second path A2. The voltage in the suppressed direction is applied to the second path A2 via the transformer 6 ; and the control unit 9 controls the second power supply unit 8 .

[0041] The first power supply unit 5 is connected to the electrode 2 via a cable C1, and connected to the workpiece 3 via a cable C2. The first path A1 includes the cables C1 and C2.

[0042] The first power supply unit 5 is a power supply ...

Embodiment approach 2

[0110] Figure 13 It is a diagram showing the circuit configuration of the electric discharge machining power supply device according to the second embodiment. In addition, the same code|symbol is attached|subjected to the same component as Embodiment 1, and description is abbreviate|omitted.

[0111] The electrical discharge machining power supply device 1A has: an electrode 2 for causing a current to flow between the electrode 2 and the workpiece 3; 1. The voltage is applied to the path A1; the transformer 6 is arranged on the second path A2 connected to the inter-electrode 4; the second power supply part 8 controls the current flowing from the first power supply part 5 into the parasitic capacitance 7 of the second path A2. The voltage in the suppressing direction is applied to the second path A2 via the transformer 6 ; and the control unit 9 controls the second power supply unit 8 .

[0112] In Embodiment 2, 1 A of electric discharge machining power supply apparatuses pe...

Embodiment approach 3

[0140] Figure 17 It is a diagram showing the circuit configuration of the electrical discharge machining power supply device according to the third embodiment. In addition, the same code|symbol is attached|subjected to the same component as Embodiment 1 and Embodiment 2, and description is abbreviate|omitted.

[0141] The electrical discharge machining power supply device 1B according to the third embodiment has a toroidal transformer 21 instead of the transformer 6 of the electrical discharge machining power supply device 1 according to the first embodiment.

[0142] The toroidal transformer 21 has a toroidal core 21a. A coil 21b is wound around the annular core 21a. The coil 21b is connected to the second power supply unit 8 . The cable C3 passes through the opening 21c of the annular core 21a.

[0143] The operation of the electrical discharge machining power supply device 1B is the same as that of the electrical discharge machining power supply device 1 according to E...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

This electric discharge machining power supply device is provided with: an electrode for flowing a current between a subject to be machined and the electrode; a first power supply unit that applies a voltage to a first path connected to an interelectrode section configured from the subject to be machined and the electrode; a transformer disposed on a second path connected to the interelectrode section; and a second power supply unit that applies a voltage to the second path via the transformer, said voltage being in the direction in which a current flowing from the first power supply unit to the floating capacitance of the second path is suppressed.

Description

technical field [0001] The present invention relates to an electrical discharge machining power supply device for machining a workpiece by generating electric discharge between an electrode and the workpiece. Background technique [0002] An electrical discharge machine is a device that generates an arc discharge between opposing electrodes and a workpiece to melt and remove the workpiece for machining. Electrodes and workpieces are arranged in highly insulating liquid. Examples of highly insulating liquids include deionized water and oil. [0003] The electrical discharge machine performs the following processing: using a rough machining current with a relatively long time width, leaving the finishing amount in the subsequent process and paying attention to the rough machining of the machining speed; and gradually reducing the energy of the current pulse to make the machined Finishing with reduced surface roughness. The time width of the rough machining current is severa...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B23H1/02
CPCB23H1/02
Inventor 高田智昭森田一成江端恭一清原浩二小田清仁
Owner MITSUBISHI ELECTRIC CORP