KR970009963A - Inverter Resistance Welding Power Supply - Google Patents
Inverter Resistance Welding Power Supply Download PDFInfo
- Publication number
- KR970009963A KR970009963A KR1019960014195A KR19960014195A KR970009963A KR 970009963 A KR970009963 A KR 970009963A KR 1019960014195 A KR1019960014195 A KR 1019960014195A KR 19960014195 A KR19960014195 A KR 19960014195A KR 970009963 A KR970009963 A KR 970009963A
- Authority
- KR
- South Korea
- Prior art keywords
- current
- value
- average value
- inverter
- welding
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/24—Electric supply or control circuits therefor
- B23K11/241—Electric supplies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/24—Electric supply or control circuits therefor
- B23K11/25—Monitoring devices
- B23K11/252—Monitoring devices using digital means
- B23K11/257—Monitoring devices using digital means the measured parameter being an electrical current
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/12—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to investigating the properties, e.g. the weldability, of materials
- B23K31/125—Weld quality monitoring
Abstract
본 발명은 전류 피크치의 정전류 제어를 수행하면서, 실제로 흐르고 있는 전류의 크기를 모니터하여, 저항용접의 품질 관리 향상을 도모하고자 함을 그 목적으로 하며, 상기한 목적을 해결하기 위한 수단으로서, 각단위 통전 사이클의 시발에서 CPU(40)는 제어펄스(CA) 또는 (CB)를 상승시켜서, 트래지스터(18,24) 또는 (20,22)를 온시킨다. 그런 후, 비교 회로(59)의 출력 신호에 반응하여, 아니면, 내부 클록의 종단에 반응하여, CPU(40)는 제어 펄스(CA) 또는 (CB)를 하강시켜서, 트랜지스터(18,24) 또는 (20,22)를 오프시킨다. 이것과 동시에, CPU(40)는, 그 시점에서의 전류 검출 신호(Si)의 적분치(SIn)을 샘플링·홀드 회로(56)에 홀드시켜서, A-D변환기(58)를 통하여 저장한다. 그리고, 이 전류 적분치(SIn)와 통전 펄스폭(Tn)으로부터 전류 평균치를 구한다. 용접 통전 종료후, CPU(40)는 기억부(64)에 저장되어 있는 각 사이클 몫의 전류 평균치로부터 전 사이클 분량의 전류 평균치를 구하고, 이 전류평균치를 기초로 용접 양부(良否)의 판정을 수행한다.An object of the present invention is to improve the quality control of resistance welding by monitoring the magnitude of the current flowing while performing the constant current control of the current peak value. As means for solving the above object, At the start of the energizing cycle, the CPU 40 raises the control pulse C A or C B to turn on the transistors 18 and 24 or 20 and 22. The CPU 40 then lowers the control pulse C A or C B in response to the output signal of the comparison circuit 59 or otherwise in response to the termination of the internal clock to cause the transistors 18 and 24 ) Or (20, 22) are turned off. Simultaneously with this, the CPU 40 holds the integrated value SI n of the current detection signal Si at that point in the sampling and holding circuit 56 and stores it through the AD converter 58. Then, a current average value is obtained from the current integration value SI n and the conduction pulse width T n . After completion of the welding energization, the CPU 40 obtains a current average value of the whole cycle amount from the current average value of each cycle share stored in the storage unit 64, and determines the welding good (good or bad) based on this current average value do.
선택도 제1도Selectivity Diagram 1
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.
제1도는 본 발명의 일 실시예에 의한 인버터식 저항용접 전원장치의 회로 구성을 나타내는 블록도이다.FIG. 1 is a block diagram showing a circuit configuration of an inverter type resistance welding power supply apparatus according to an embodiment of the present invention.
제2도는 실시예에 있어서의 전류 피크치 제어 기능 및 전류 모니터 기능을 설명하기 위한 각부의 신호 파형을 나타내는 신호 파형도이다.2 is a signal waveform diagram showing signal waveforms of respective parts for explaining the current peak value control function and current monitor function in the embodiment.
제3도는 실시예에 있어서의 CPU의 주된 처리를 나타내는 플로우 챠트이다.FIG. 3 is a flow chart showing the main processing of the CPU in the embodiment.
제4도는 실시예에 있어서의 CPU의 주된 처리를 나타내는 플로우 차트이다.FIG. 4 is a flowchart showing the main processing of the CPU in the embodiment.
제5도는 실시예에 있어서의 전류 실효치를 구하기 위한 일 변형예에 따른 요부의 회로 구성을 나타내는 블록도이다.FIG. 5 is a block diagram showing a circuit configuration of a concave portion according to a modified example for obtaining the effective value of the current in the embodiment.
Claims (6)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22593495A JP3259013B2 (en) | 1995-08-10 | 1995-08-10 | Inverter type resistance welding power supply |
JP95-225934 | 1995-08-10 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR970009963A true KR970009963A (en) | 1997-03-27 |
KR100443167B1 KR100443167B1 (en) | 2004-09-24 |
Family
ID=16837192
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019960014195A KR100443167B1 (en) | 1995-08-10 | 1996-05-02 | Inverter Resistance Welding Power Supply |
Country Status (2)
Country | Link |
---|---|
JP (1) | JP3259013B2 (en) |
KR (1) | KR100443167B1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7258445B2 (en) * | 2019-09-30 | 2023-04-17 | ダイハツ工業株式会社 | CONTROL DEVICE FOR RESISTANCE WELDING MACHINE, METHOD FOR MONITORING ELECTRICAL CONDITION OF WELDED PORTION, AND METHOD FOR JUDGING GOOD OR FAILURE |
JP2022143683A (en) * | 2021-03-18 | 2022-10-03 | 株式会社アマダ | Intermittent seam weld measuring apparatus and intermittent seam weld measuring method |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69515083T2 (en) * | 1994-05-27 | 2000-10-12 | Toshiba Kawasaki Kk | Control system for resistance welding machine |
-
1995
- 1995-08-10 JP JP22593495A patent/JP3259013B2/en not_active Expired - Fee Related
-
1996
- 1996-05-02 KR KR1019960014195A patent/KR100443167B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
JPH0952181A (en) | 1997-02-25 |
JP3259013B2 (en) | 2002-02-18 |
KR100443167B1 (en) | 2004-09-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1046923B1 (en) | Apparatus for inspecting electric component for inverter circuit | |
KR970014902A (en) | Inverter type core welding power supply | |
KR860007549A (en) | Welding Current Measuring Device | |
KR970009963A (en) | Inverter Resistance Welding Power Supply | |
KR970009962A (en) | Inverter type resistance welding control device | |
JPH08313466A (en) | Detecting device of deterioration of thermocouple | |
KR950011030A (en) | Resistance welding control method and device | |
KR950026597A (en) | Electric discharge processing method and device | |
JP2000326070A (en) | Delay time measuring instrument for ac arc welding machine with automatic voltage reducing device | |
JPH0644542Y2 (en) | Inverter resistance welding machine control or measuring device | |
US7170270B2 (en) | Control device | |
JPH05312896A (en) | Method and device for measuring conduction of scr | |
KR920022074A (en) | How Ac Measurements on Microprocessors Are Measured | |
JPH0890230A (en) | Arc welding monitoring device | |
KR840007676A (en) | Means for measuring the duration of the welding operation phase | |
JP2692649B2 (en) | Measuring device and logic analyzer | |
JP3092826B2 (en) | DC motor constant detection method | |
KR970020286A (en) | Welding Quality Evaluation Method | |
JPH0212074A (en) | Power source unit for measurement of ic testing device | |
JP3692530B2 (en) | AC signal measuring instrument | |
KR960032001A (en) | Coil resistance measuring circuit using resistance method | |
KR970071353A (en) | Jitter measuring device of laser scanner unit | |
JPH0742117Y2 (en) | AE measuring device | |
JPH0557545B2 (en) | ||
JPH11153641A (en) | Semiconductor device testing device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E701 | Decision to grant or registration of patent right | ||
GRNT | Written decision to grant | ||
FPAY | Annual fee payment |
Payment date: 20070529 Year of fee payment: 4 |
|
LAPS | Lapse due to unpaid annual fee |