JPH0413221U - - Google Patents
Info
- Publication number
- JPH0413221U JPH0413221U JP5489290U JP5489290U JPH0413221U JP H0413221 U JPH0413221 U JP H0413221U JP 5489290 U JP5489290 U JP 5489290U JP 5489290 U JP5489290 U JP 5489290U JP H0413221 U JPH0413221 U JP H0413221U
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- switching circuit
- sub
- voltage
- electric discharge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000003754 machining Methods 0.000 claims 6
- 238000001514 detection method Methods 0.000 claims 2
- 238000010891 electric arc Methods 0.000 claims 1
- 238000009760 electrical discharge machining Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 230000010355 oscillation Effects 0.000 description 1
Landscapes
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Description
第１図はこの考案の一実施例による放電加工装
置の放電加工用電源回路図、第２図はこの考案の
一実施例による放電加工装置の放電加工用電源回
路の動作の波形チヤートを示す図、第３図は従来
の放電加工装置の放電加工用電源回路図、第４図
は従来の放電加工装置の放電加工用電源回路の動
作の波形チヤートを示す図である。
図において、１……加工用電極、２……被加工
物、３……電圧可変な第一の直流電源、４……第
二の直流電源、６……第二のスイツチング回路、
８……ワンシヨツトマルチバイブレータ、１６，
１７，１８，１９……スイツチング回路、２０…
…発振回路である。なお、図中、同一符号は同一
、または相当部分を示す。
Fig. 1 is a diagram showing a power supply circuit for electrical discharge machining of an electrical discharge machining apparatus according to an embodiment of this invention, and Fig. 2 is a diagram showing a waveform chart of the operation of a power supply circuit for electrical discharge machining of an electrical discharge machining apparatus according to an embodiment of this invention. 3 is a diagram of a power supply circuit for electrical discharge machining of a conventional electrical discharge machining apparatus, and FIG. 4 is a diagram showing a waveform chart of the operation of the power supply circuit for electrical discharge machining of a conventional electrical discharge machining apparatus. In the figure, 1... electrode for processing, 2... workpiece, 3... first DC power source with variable voltage, 4... second DC power source, 6... second switching circuit,
8... One-shot multivibrator, 16,
17, 18, 19... switching circuit, 20...
...It is an oscillation circuit. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.
Claims (1)
間欠的にアーク放電を発生させて被加工物を加工
する放電加工装置の放電加工用電源装置において
、電圧可変な第一の直流電源と、該第一の直流電
源から交流パルス電圧を極間に供給する副スイツ
チング回路と、該第一の直流電源よりも大きい電
流容量を持つ第二の直流電源と、該第二の直流電
源から該副スイツチング回路よりも高いピーク電
流の直流パルス電流（電圧）を加工間隙に供給す
る主スイツチング回路と、該副スイツチング回路
による一方の極性での放電を検出する検出装置を
備え、該検出装置の出力に基づき一方の極性のみ
該主スイツチング回路による直流パルス電流（電
圧）を供給することを特徴とする放電加工装置の
放電加工用電源装置。 In an electric discharge machining power supply device of an electric discharge machining apparatus that machines a workpiece by intermittently generating an arc discharge in a machining gap formed between an electrode and a workpiece, a first DC power supply with a variable voltage; , a sub-switching circuit that supplies AC pulse voltage between the poles from the first DC power supply, a second DC power supply having a larger current capacity than the first DC power supply, and a sub-switching circuit that supplies AC pulse voltage between the poles from the first DC power supply; The main switching circuit supplies a DC pulse current (voltage) with a peak current higher than that of the sub-switching circuit to the machining gap, and a detection device that detects discharge in one polarity due to the sub-switching circuit, and the output of the detection device A power supply device for electric discharge machining of an electric discharge machining apparatus, characterized in that a DC pulse current (voltage) is supplied by the main switching circuit with only one polarity based on the following.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5489290U JPH0413221U (en) | 1990-05-25 | 1990-05-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5489290U JPH0413221U (en) | 1990-05-25 | 1990-05-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0413221U true JPH0413221U (en) | 1992-02-03 |
Family
ID=31577359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5489290U Pending JPH0413221U (en) | 1990-05-25 | 1990-05-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0413221U (en) |
-
1990
- 1990-05-25 JP JP5489290U patent/JPH0413221U/ja active Pending
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