JPS60130481A - Gun arm with hall element for detecting welding current - Google Patents

Gun arm with hall element for detecting welding current

Info

Publication number
JPS60130481A
JPS60130481A JP23890783A JP23890783A JPS60130481A JP S60130481 A JPS60130481 A JP S60130481A JP 23890783 A JP23890783 A JP 23890783A JP 23890783 A JP23890783 A JP 23890783A JP S60130481 A JPS60130481 A JP S60130481A
Authority
JP
Japan
Prior art keywords
welding current
hall element
gun arm
arm body
electromotive force
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
JP23890783A
Other languages
Japanese (ja)
Inventor
Makoto Makino
誠 牧野
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.)
Honda Motor Co Ltd
Original Assignee
Honda Motor 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 Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Priority to JP23890783A priority Critical patent/JPS60130481A/en
Publication of JPS60130481A publication Critical patent/JPS60130481A/en
Pending legal-status Critical Current

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
    • B23K11/25—Monitoring devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Resistance Welding (AREA)

Abstract

PURPOSE:To provide a titled gun arm which knows a welding current value and is made simple and smaller in size by detecting the electromotive force of a Hall element intersecting orthogonally with the magnetic flux generated by the welding current flowing in a gun arm body. CONSTITUTION:Electromotive force is generated in a Hall element 2 disposed intersecting orthogonally with the magnetic flux PHI generated by the welding current O mark flowing in a gum arm body 1. The electromotive force is amplified 5 and the welding current value is detected by a current control circuit 6. The current value is known by the extremely small and simple construction and constitution and troubles are decreased.

Description

【発明の詳細な説明】 本発明は溶接電流検出用ホール素子付ガン゛ｒ−ムに関
する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a gun arm with a Hall element for detecting welding current.

従来、抵抗溶接機において、溶接電流を検出する手段と
して、二次導体に卜四イダルコアを取付けたものが知ら
れでいるが、作業性が悪く小型化に限度があり、また取
付場所に制約が大きく、更に溶接電流が直流の場合検出
が不可能であるなどの不都合があった。Conventionally, resistance welding machines have been known to have a four-dimensional core attached to the secondary conductor as a means of detecting the welding current, but this method has poor workability, limits miniaturization, and has restrictions on the installation location. Furthermore, there were disadvantages such as detection being impossible if the welding current was direct current.

本発明は、従来のかかる不都合がないものを提供するこ
とをその目的としたもので、ガンアーム本体上にガンア
ーム本体に流れる溶接電流による磁束が直交するように
ホール素子を固着したことを特徴とする。The object of the present invention is to provide a device that does not have such inconveniences as in the past, and is characterized in that a Hall element is fixed on the gun arm body so that the magnetic fluxes caused by the welding current flowing through the gun arm body are orthogonal to each other. .

以下本発明の実施例を図面につき説明する。Embodiments of the present invention will be described below with reference to the drawings.

図面において（１）は抵抗溶接機のガンアーム本体、（
２）は非磁性体例えば樹脂内にモールドしたホール素子
で、該ホール素子（２）とガンアーム本体（１）□　を
流れる溶接電流■によりガンアーム本体（１１を囲繞し
て発生する磁束Φとが直交するように、ホール素子（２
）をモールドしたモールド体（３）をガンアーム本体（
１１の中間部上面に固着した。（４）は（６）は電流制
御回路である。次に作動を説明すると、ガンアーム本体
（１）に溶接′電流が流れると、該ガンアーム本体（１
１の周りに電流の大きさに対応する磁束Φが発生し、こ
の磁束Φはホール素力を測定することにより溶接電流値
をめることができる。第１図の実施例においてはホール
素子（２）の−電力は増幅回路（５）で増幅され電流制
御回路（６）に加わるように構成したから、溶接電流値
に応じて所定の制御動作が行なわれる。In the drawing, (1) is the gun arm body of the resistance welding machine, (
2) is a Hall element molded in a non-magnetic material such as resin, and the magnetic flux Φ generated surrounding the gun arm body (11) is perpendicular to the Hall element (2) due to the welding current ■ flowing through the gun arm body (1) □. The Hall element (2
) into the gun arm body (
It was fixed to the upper surface of the middle part of No. 11. (4) and (6) are current control circuits. Next, to explain the operation, when welding current flows through the gun arm body (1), the gun arm body (1)
A magnetic flux Φ corresponding to the magnitude of the current is generated around 1, and the welding current value of this magnetic flux Φ can be determined by measuring the Hall element force. In the embodiment shown in FIG. 1, the negative power of the Hall element (2) is amplified by the amplifier circuit (5) and applied to the current control circuit (6), so that a predetermined control operation is performed according to the welding current value. It is done.

このように本発明によるときは、ガンアーム本体上にガ
ンアーム本体に流れる溶接電流による磁束が直交するよ
うにホール素子を固着したので、従来の溶接電流検出手
段に比して小型化できると共にその取付に制約を受ける
ことがなく１作業性もよいなどの効果を有する。In this way, according to the present invention, the Hall element is fixed on the gun arm body so that the magnetic flux due to the welding current flowing through the gun arm body is perpendicular to the gun arm body, so it can be made smaller than the conventional welding current detection means, and it can be easily mounted. It has the advantage of not being subject to any restrictions and having good workability.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本発明の一実施例の側面図、第２図は第１図の
■−■線截線面断面図す。 （１）・・・ガンアーム本体　（２）・・・ホール素子
（３）・・・モールド体　（４）・・・定電流電源外２
名FIG. 1 is a side view of one embodiment of the present invention, and FIG. 2 is a sectional view taken along the line 1--2 in FIG. (1)...Gun arm body (2)...Hall element (3)...Mold body (4)...External constant current power supply 2
given name

Claims (1)

【特許請求の範囲】[Claims] ガンアーム本体上にガンアーム本体に流れる溶接電流に
よる磁束が直交するようにホール素子を固着したことを
特徴とする溶接電流検出用ホール素子付ガンアーム。A gun arm with a Hall element for detecting welding current, characterized in that a Hall element is fixed on the gun arm body so that the magnetic fluxes due to the welding current flowing through the gun arm body are perpendicular to each other.
JP23890783A 1983-12-20 1983-12-20 Gun arm with hall element for detecting welding current Pending JPS60130481A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23890783A JPS60130481A (en) 1983-12-20 1983-12-20 Gun arm with hall element for detecting welding current

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23890783A JPS60130481A (en) 1983-12-20 1983-12-20 Gun arm with hall element for detecting welding current

Publications (1)

Publication Number Publication Date
JPS60130481A true JPS60130481A (en) 1985-07-11

Family

ID=17037038

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23890783A Pending JPS60130481A (en) 1983-12-20 1983-12-20 Gun arm with hall element for detecting welding current

Country Status (1)

Country Link
JP (1) JPS60130481A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60255288A (en) * 1984-05-30 1985-12-16 Dengensha Mfg Co Ltd Device for detecting whether electrification exists or not
JP2001334368A (en) * 2000-05-24 2001-12-04 Fuji Heavy Ind Ltd Abnormality detecting device for welding secondary cable

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS574378A (en) * 1980-06-09 1982-01-09 Dengensha Mfg Co Ltd Measuring device for welding current

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS574378A (en) * 1980-06-09 1982-01-09 Dengensha Mfg Co Ltd Measuring device for welding current

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60255288A (en) * 1984-05-30 1985-12-16 Dengensha Mfg Co Ltd Device for detecting whether electrification exists or not
JP2001334368A (en) * 2000-05-24 2001-12-04 Fuji Heavy Ind Ltd Abnormality detecting device for welding secondary cable
JP4526655B2 (en) * 2000-05-24 2010-08-18 富士重工業株式会社 Abnormality detection device for welded secondary cable

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