JPS6418576A - Bead detection device - Google Patents

Bead detection device

Info

Publication number
JPS6418576A
JPS6418576A JP17378687A JP17378687A JPS6418576A JP S6418576 A JPS6418576 A JP S6418576A JP 17378687 A JP17378687 A JP 17378687A JP 17378687 A JP17378687 A JP 17378687A JP S6418576 A JPS6418576 A JP S6418576A
Authority
JP
Japan
Prior art keywords
bead
welding
groove
brightness data
control part
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.)
Granted
Application number
JP17378687A
Other languages
Japanese (ja)
Other versions
JPH0465750B2 (en
Inventor
Yuji Sugitani
Yoshihiro Kanjiyou
Yasuhiko Nishi
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.)
JFE Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan 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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP17378687A priority Critical patent/JPS6418576A/en
Publication of JPS6418576A publication Critical patent/JPS6418576A/en
Publication of JPH0465750B2 publication Critical patent/JPH0465750B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Length Measuring Devices By Optical Means (AREA)

Abstract

PURPOSE:To detect the bead located at a groove with high accuracy by comparing each integral value with the integral processing of the brightness data in plural specified zones of the brightness data of the image of an image picked up groove. CONSTITUTION:The beveling face 20 of the groove 18 of a base metal 16 is picked up by the two dimensional image pick-up device 12 arranged in the progressing direction of a welding torch 10 and the video signal is subjected to an A/D convertion by a control part and stored in a memory 28. A control part reads from the memory 28 the brightness data of picture images contained in the detection zones SDA, SBD where the contrast of these picture images is varied by the presence or absence of a bead, integrates by the addition of an integrating circuit and compares by a comparison circuit. As a result when the presence of a bead is judged it is inputted into a count circuit to count it up. At the time when this count value is attained to '3' a decision is made as a bead detection and it is outputted to a welding control device 30 from the control part to perform the control of welding conditions and welding completion.
JP17378687A 1987-07-14 1987-07-14 Bead detection device Granted JPS6418576A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17378687A JPS6418576A (en) 1987-07-14 1987-07-14 Bead detection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17378687A JPS6418576A (en) 1987-07-14 1987-07-14 Bead detection device

Publications (2)

Publication Number Publication Date
JPS6418576A true JPS6418576A (en) 1989-01-23
JPH0465750B2 JPH0465750B2 (en) 1992-10-21

Family

ID=15967124

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17378687A Granted JPS6418576A (en) 1987-07-14 1987-07-14 Bead detection device

Country Status (1)

Country Link
JP (1) JPS6418576A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011098375A (en) * 2009-11-06 2011-05-19 Panasonic Corp Method and apparatus for arc welding
JP2020175409A (en) * 2019-04-17 2020-10-29 パナソニックＩｐマネジメント株式会社 Weld determination device, welding equipment and weld determination method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011098375A (en) * 2009-11-06 2011-05-19 Panasonic Corp Method and apparatus for arc welding
JP2020175409A (en) * 2019-04-17 2020-10-29 パナソニックＩｐマネジメント株式会社 Weld determination device, welding equipment and weld determination method

Also Published As

Publication number Publication date
JPH0465750B2 (en) 1992-10-21

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees