JPS569069A - Deciding device - Google Patents
Deciding deviceInfo
- Publication number
- JPS569069A JPS569069A JP8318679A JP8318679A JPS569069A JP S569069 A JPS569069 A JP S569069A JP 8318679 A JP8318679 A JP 8318679A JP 8318679 A JP8318679 A JP 8318679A JP S569069 A JPS569069 A JP S569069A
- Authority
- JP
- Japan
- Prior art keywords
- welding
- data
- waveform data
- stored
- waveform
- 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
Abstract
PURPOSE: To let the decision of accurate states be done efficiently by using the output signal of a normal state as a reference value, letting the reference value vary according to changes in conditions, storing the same and comparing the stored reference value with the actual input signal.
CONSTITUTION: When voltage is applied to the primary windings of a welding transformer 5, electric current flows in metal wires 3, 4, by which the contact point is heated and welding is done. At this time, the welding current flows in a standard resistance 6 for waveform measurement as well, so that the voltage waveform is written into a memory 7. This is subjected to A/D conversion and is stored as digital data into a memory part 7b. The stored data are transferred to a microcomputer 8. The computer 8 stores the arbitrary welding waveform data since the time when the welding machine starts operating, operates the mean value thereof and stores the same as reference waveform data into a memory for storing reference data possessed by the same. The welding waveform data to be read in from the next are compared with the reference waveform data and the decision signal of goodness or nor is outputted. The reference waveform data are displayed in a printer 9.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8318679A JPS569069A (en) | 1979-06-30 | 1979-06-30 | Deciding device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8318679A JPS569069A (en) | 1979-06-30 | 1979-06-30 | Deciding device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS569069A true JPS569069A (en) | 1981-01-29 |
Family
ID=13795282
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8318679A Pending JPS569069A (en) | 1979-06-30 | 1979-06-30 | Deciding device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS569069A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58129317A (en) * | 1982-01-29 | 1983-08-02 | Mitsubishi Heavy Ind Ltd | Abnormality detecting device |
JPS5981797A (en) * | 1982-06-16 | 1984-05-11 | 三菱鉱業セメント株式会社 | Controller for processing varied measured value |
JPH0713366U (en) * | 1993-08-05 | 1995-03-07 | 美津濃株式会社 | Grip cap |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5421938A (en) * | 1977-07-21 | 1979-02-19 | Nissan Motor Co Ltd | Method of checking quality of resistance welded portion |
-
1979
- 1979-06-30 JP JP8318679A patent/JPS569069A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5421938A (en) * | 1977-07-21 | 1979-02-19 | Nissan Motor Co Ltd | Method of checking quality of resistance welded portion |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58129317A (en) * | 1982-01-29 | 1983-08-02 | Mitsubishi Heavy Ind Ltd | Abnormality detecting device |
JPS6351487B2 (en) * | 1982-01-29 | 1988-10-14 | Mitsubishi Heavy Ind Ltd | |
JPS5981797A (en) * | 1982-06-16 | 1984-05-11 | 三菱鉱業セメント株式会社 | Controller for processing varied measured value |
JPH0713366U (en) * | 1993-08-05 | 1995-03-07 | 美津濃株式会社 | Grip cap |
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