JPS569069A - Deciding device - Google Patents

Deciding device

Info

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
Application number
JP8318679A
Other languages
Japanese (ja)
Inventor
Hidemitsu Ninomiya
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP8318679A priority Critical patent/JPS569069A/en
Publication of JPS569069A publication Critical patent/JPS569069A/en
Pending legal-status Critical Current

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
JP8318679A 1979-06-30 1979-06-30 Deciding device Pending JPS569069A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (1)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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