JPH0368982U - - Google Patents
Info
- Publication number
- JPH0368982U JPH0368982U JP12798889U JP12798889U JPH0368982U JP H0368982 U JPH0368982 U JP H0368982U JP 12798889 U JP12798889 U JP 12798889U JP 12798889 U JP12798889 U JP 12798889U JP H0368982 U JPH0368982 U JP H0368982U
- Authority
- JP
- Japan
- Prior art keywords
- output signal
- welding
- current
- rectifier
- voltage detection
- 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
- 238000003466 welding Methods 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Generation Of Surge Voltage And Current (AREA)
Description
第１図は、本考案の一実施例によるインバータ
式抵抗溶接機の電源装置の回路構成を示す図、第
２図および第３図は、実施例装置の作用を説明す
るための各部の信号の波形を示すタイミング図で
ある。
図面において、１２……整流回路、１６，１８
……抵抗（抵抗分圧回路）、２０……インバータ
回路、２２……溶接トランス、４０……差動増幅
器、４２，４８……比較回路、４４，４６……基
準値設定回路、５０……ＣＰＵ、５４……表示装
置。
FIG. 1 is a diagram showing the circuit configuration of a power supply device for an inverter-type resistance welding machine according to an embodiment of the present invention, and FIGS. FIG. 3 is a timing diagram showing waveforms. In the drawings, 12... rectifier circuit, 16, 18
... Resistor (resistance voltage divider circuit), 20 ... Inverter circuit, 22 ... Welding transformer, 40 ... Differential amplifier, 42, 48 ... Comparison circuit, 44, 46 ... Reference value setting circuit, 50 ... CPU, 54...Display device.
Claims (1)
換し、前記直流を所定周波数のパルス状高周波交
流に変換し、前記高周波交流を溶接トランスに通
したのち第２の整流器に通して再び直流にし、こ
の直流を溶接電極を介して被溶接材に供給するよ
うにしたインバータ式抵抗溶接機において、 前記第１の整流器の出力電圧を検出する電圧検
出手段と、 前記電圧検出手段の出力信号を所定の基準値と
比較する比較手段と、 前記比較手段の出力信号に応じて溶接通電の実
行を制御する制御手段と、 を具備したことを特徴とする電源装置。 (2) 前記制御手段は、前記溶接通電の中止また
は停止後、一定時間内に前記比較手段の出力信号
が元に戻つたときは直ちに溶接通電を開始または
再開させるようにした請求項１記載の電源装置。 (3) 前記電圧検出手段の出力信号または前記比
較手段の出力信号に基づいて溶接通電の状況を表
示する手段を具備したことを特徴とする請求項１
記載の電源装置。[Claims for Utility Model Registration] (1) After converting commercial alternating current into direct current by passing it through a first rectifier, converting said direct current into pulsed high-frequency alternating current with a predetermined frequency, and passing said high-frequency alternating current through a welding transformer, In an inverter-type resistance welding machine, the DC current is passed through a second rectifier to be turned into DC again, and the DC current is supplied to the workpiece via a welding electrode. Voltage detection means for detecting the output voltage of the first rectifier; , a comparison means for comparing the output signal of the voltage detection means with a predetermined reference value, and a control means for controlling execution of welding energization according to the output signal of the comparison means. . (2) The control means is configured to immediately start or restart the welding energization when the output signal of the comparison means returns to its original state within a certain period of time after the welding energization is stopped or stopped. power supply. (3) Claim 1, further comprising means for displaying the welding energization status based on the output signal of the voltage detection means or the output signal of the comparison means.
Power supply listed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12798889U JPH0368982U (en) | 1989-11-01 | 1989-11-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12798889U JPH0368982U (en) | 1989-11-01 | 1989-11-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0368982U true JPH0368982U (en) | 1991-07-08 |
Family
ID=31675720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12798889U Pending JPH0368982U (en) | 1989-11-01 | 1989-11-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0368982U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013031247A1 (en) * | 2011-08-30 | 2013-03-07 | 株式会社ナ・デックスプロダクツ | Method for controlling welding current of resistance welding machine, and device therefor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5175649A (en) * | 1974-12-26 | 1976-06-30 | Matsushita Electric Ind Co Ltd | Yosetsukino kadenatsuhogosochi |
| JPS5932466U (en) * | 1982-08-26 | 1984-02-29 | モリト株式会社 | clip |
-
1989
- 1989-11-01 JP JP12798889U patent/JPH0368982U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5175649A (en) * | 1974-12-26 | 1976-06-30 | Matsushita Electric Ind Co Ltd | Yosetsukino kadenatsuhogosochi |
| JPS5932466U (en) * | 1982-08-26 | 1984-02-29 | モリト株式会社 | clip |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013031247A1 (en) * | 2011-08-30 | 2013-03-07 | 株式会社ナ・デックスプロダクツ | Method for controlling welding current of resistance welding machine, and device therefor |
| JP5277352B1 (en) * | 2011-08-30 | 2013-08-28 | 株式会社ナ・デックスプロダクツ | Method and apparatus for controlling welding current of resistance welder |
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