JP7043696B2 - Electrode device for resistance welder - Google Patents

Electrode device for resistance welder Download PDF

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JP7043696B2
JP7043696B2 JP2018080230A JP2018080230A JP7043696B2 JP 7043696 B2 JP7043696 B2 JP 7043696B2 JP 2018080230 A JP2018080230 A JP 2018080230A JP 2018080230 A JP2018080230 A JP 2018080230A JP 7043696 B2 JP7043696 B2 JP 7043696B2
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work
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welding
notch
welded
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JP2019181555A (en
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武夫 蕗澤
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Shinkokiki Co Ltd
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Description

本発明は、ワークに溶接ナットを溶接するための抵抗溶接用電極装置に関するものである。 The present invention relates to an electrode device for resistance welding for welding a welding nut to a work.

従来この種の電極装置として、特許文献１に示すように、ガイドピンを備えた下部電極に、ガイドピンにてワークと溶接ナットを保持し、上部電極を下降してワークに溶接ナットを溶接するものがあるが、このようなものでは、略コ字形に折り曲げられたワークの対向片の対向面の各々に溶接ナットを溶接する場合、図６に示すように、上部電極５１の下方に一方の側方を開口した四角形の切欠き部５１ａを形成し、略コ字形に折り曲げられたワーク５２の一方対向片５２ａの対向面に溶接ナット５３を溶接したのち、下部電極５４にガイドピン５５によってワーク５２の他方対向片５２ｂと溶接ナット５３を嵌め込むとともに、溶接ナット５３を溶接した一方対向片５１ａを上部電極５１の切欠き部５１ａに挿入して下部電極５４にワーク５２と溶接ナット５３を保持し、上部電極５１を下降して、ワーク５２の他方対向片５１ｂの対向面に溶接ナット５３を溶接していた。 Conventionally, as this type of electrode device, as shown in Patent Document 1, a work and a welding nut are held by a guide pin on a lower electrode provided with a guide pin, and a welding nut is welded to the work by lowering the upper electrode. In such a case, when a weld nut is welded to each of the facing surfaces of the facing pieces of the workpiece bent in a substantially U shape, one of them is below the upper electrode 51 as shown in FIG. A square notch 51a with a side opening is formed, and a welding nut 53 is welded to the facing surface of one facing piece 52a of the work 52 bent in a substantially U shape, and then the work is provided to the lower electrode 54 by a guide pin 55. The other facing piece 52b of 52 and the welding nut 53 are fitted, and the facing piece 51a to which the welding nut 53 is welded is inserted into the notch 51a of the upper electrode 51 to hold the work 52 and the welding nut 53 in the lower electrode 54. Then, the upper electrode 51 was lowered to weld the welding nut 53 to the facing surface of the other facing piece 51b of the work 52.

実登３０４６３６２号公報Gazette No. 3046362

前記のものでは、一方対向片５２ａの対向面に溶接ナット５３を溶接できても、他方対向片５２ｂの対向面に溶接ナット５３を溶接する場合、対向片５２ａ，５２ｂ間の間隔が狭いと、一方対向片５２ａの対向面に溶接した溶接ナット５３が上部電極５１に当たり、上部電極５１切欠き部５１ａに挿入できず、ワーク５２の他方対向片５２ｂの対向面に溶接ナット５３を溶接することができないという問題があった。 In the above case, even if the welding nut 53 can be welded to the facing surface of the facing piece 52a, when the welding nut 53 is welded to the facing surface of the facing piece 52b, if the distance between the facing pieces 52a and 52b is narrow, On the other hand, the welding nut 53 welded to the facing surface of the facing piece 52a hits the upper electrode 51 and cannot be inserted into the notch portion 51a of the upper electrode 51, so that the welding nut 53 can be welded to the facing surface of the other facing piece 52b of the work 52. There was a problem that it could not be done.

本発明は、前記の問題を解決し、コ字形に折り曲げられたワークの対向片の対向面の各々に溶接ナットを溶接する場合、一方対向片の対向面に溶接ナットを溶接できれば、他方対向片の対向面にも溶接ナットを溶接することができる抵抗溶接用電極装置を提供することを目的になされたものである。 The present invention solves the above-mentioned problems, and when welding a weld nut to each of the facing surfaces of the facing pieces of the U-shaped bent work, if the welding nut can be welded to the facing surfaces of the facing piece, the other facing piece. It is an object of the present invention to provide an electrode device for resistance welding capable of welding a welding nut to the facing surface of the above.

上記課題を解決するためになされた本発明の抵抗溶接用電極装置は、上部電極とガイドピンを備えた下部電極とからなる抵抗溶接用電極装置において、上部電極の下部に一方の側方が開口した切欠き部を形成するとともに、この切欠き部の下部水平片の上部に、上部の切欠き部側が開口し、ワークに溶接された溶接ナットが挿入される挿入溝を形成したことを特徴とするものである。 The electrode device for resistance welding of the present invention, which has been made to solve the above problems, is an electrode device for resistance welding composed of an upper electrode and a lower electrode provided with a guide pin, and one side is open at the lower part of the upper electrode. In addition to forming the notch, the upper notch side opens at the upper part of the lower horizontal piece of this notch, and an insertion groove into which the weld nut welded to the work is inserted is formed. Is what you do.

前記挿入溝は、前記切欠き部の開口と同方向の側方に開口したものであることが好ましく、これを請求項２に係る発明とする。 The insertion groove is preferably opened laterally in the same direction as the opening of the notch portion, and this is the invention according to claim 2.

請求項１の発明では、上部電極の下部に一方の側方が開口した切欠き部を形成するとともに、この切欠き部の下部水平片の上部に、上部の切欠き部側が開口し、ワークに溶接された溶接ナットが挿入される挿入溝を形成したので、コ字形に折り曲げられたワークの対向片の各々の対向面に溶接ナットを溶接する場合、一方対向片の対向面に溶接ナットを溶接できれば他方対向片の対向面にも溶接ナットを溶接できる。 In the invention of claim 1, a notch portion opened on one side is formed at the lower portion of the upper electrode, and the notch portion side of the upper portion is opened at the upper portion of the lower horizontal piece of the notch portion to form a work. Since an insertion groove is formed into which the welded welding nut is inserted, when welding the welding nut to the facing surfaces of the facing pieces of the U-shaped bent workpiece, the welding nut is welded to the facing surface of the facing piece. If possible, the welding nut can be welded to the facing surface of the other facing piece.

請求項２の発明では、前記挿入溝は、前記切欠き部の開口と同方向の側方に開口したものであるので、ワークと溶接ナットの保持が容易にできる。 In the invention of claim 2, since the insertion groove is opened laterally in the same direction as the opening of the notch portion, the work and the weld nut can be easily held.

本発明の実施の形態におけて、ワークの一方対向片と溶接ナットをセットした状態を示す一部切欠き正面図である。In the embodiment of the present invention, it is a partially cutaway front view showing a state in which one facing piece of a work and a welding nut are set. 図１の溶接時の状態を示す一部切欠き正面図である。It is a partial notch front view which shows the state at the time of welding of FIG. 本発明の実施の形態におけて、ワークの他方対向片と溶接ナットをセットした状態を示す一部切欠き正面図である。In the embodiment of the present invention, it is a partially cutaway front view showing a state in which the other facing piece of the work and the welding nut are set. 図３の溶接時の状態を示す一部切欠き正面図である。It is a partial notch front view which shows the state at the time of welding of FIG. 図１の上部電極の切欠き平面図である。It is a notch plan view of the upper electrode of FIG. 従来例の一部切欠き正面図である。It is a partial notch front view of the conventional example.

以下、本発明の好ましい実施の形態について図１乃至図５に基づいて説明する。 Hereinafter, preferred embodiments of the present invention will be described with reference to FIGS. 1 to 5.

１は、下部に一方の側方である左側が開口した四角形の切欠き部１ａを形成した上部電極であり、上部電極１の切欠き部１ａを形成する下部水平片１ｂの上面には、左側と上面が開口した溶接ナット２の挿入溝１ｃが形成されている。即ち、挿入溝１ｃは切欠き部１ａの開口と同方向と、切欠き部１ａ方向に開口している。 Reference numeral 1 is an upper electrode having a rectangular notch portion 1a having an open left side, which is one side of the lower portion, and a left side on the upper surface of the lower horizontal piece 1b forming the notch portion 1a of the upper electrode 1. An insertion groove 1c of the welding nut 2 having an open upper surface is formed. That is, the insertion groove 1c opens in the same direction as the opening of the notch portion 1a and in the direction of the notch portion 1a.

３は下部電極であり、下部電極３の上面略中央には、ガイドピン４が突出している。 Reference numeral 3 is a lower electrode, and a guide pin 4 projects from substantially the center of the upper surface of the lower electrode 3.

５は略コ字形に折り曲げられたワークであり、ワーク５の両端の対向片５ａ、５ｂの略中央には対向片５ａ、５ｂに溶接される溶接ナット２に螺合されるボルト（図示しない。）の軸部が挿通する挿通穴５ｃ、５ｄが形成されている。 Reference numeral 5 denotes a work bent in a substantially U-shape, and bolts screwed into the welding nuts 2 welded to the facing pieces 5a and 5b at substantially the center of the facing pieces 5a and 5b at both ends of the work 5 (not shown). ) Is formed through the insertion holes 5c and 5d through which the shaft portion is inserted.

次に、ワーク５の対向片５ａ、５ｂの対向面に溶接ナット２を溶接する方法を説明すると、図１に示すように、ワーク５の一方対向片５ａの挿通穴５ｃと溶接ナット２のねじ穴２ａを下部電極３のガイドピン４に嵌め込むとともにワーク５の他方対向片５ｃを上部電極１の切欠き部１ａに開口より挿入し、ワーク５と溶接ナット２を下部電極３に保持させる。 Next, a method of welding the welding nut 2 to the facing surfaces of the facing pieces 5a and 5b of the work 5 will be described. As shown in FIG. 1, the insertion hole 5c of the facing piece 5a of the work 5 and the screw of the welding nut 2 are screwed. The hole 2a is fitted into the guide pin 4 of the lower electrode 3, and the other facing piece 5c of the work 5 is inserted into the notch 1a of the upper electrode 1 through the opening, and the work 5 and the welding nut 2 are held by the lower electrode 3.

さらに、図２に示すように、上部電極１を下降し、上部電極１を溶接ナット２に接触押圧させ、溶接電流を上部電極１、溶接ナット２、ワーク５、及び下部電極３に流し、ワーク５の一方対向片５ａの対向面に溶接ナット２を溶接する。 Further, as shown in FIG. 2, the upper electrode 1 is lowered, the upper electrode 1 is contacted and pressed against the welding nut 2, and the welding current is passed through the upper electrode 1, the welding nut 2, the work 5, and the lower electrode 3 to flow the work. The welding nut 2 is welded to the facing surface of the one facing piece 5a of 5.

この後、ワーク５を電極装置から外し、１８０°回転して、図３に示すようにワーク５の他方対向片５ｂの挿通穴５ｄと溶接ナット２のねじ穴２ｂを下部電極３のガイドピン４に嵌め込むとともに、溶接ナット２を溶接したワーク５の一方対向片５ａを上部電極１の切欠き部１ａに開口より挿入し、ワーク５と溶接ナット２を下部電極３に保持させる、このとき、上部電極１の切欠き部１ａを形成する下部水平片１ｂの上面には、切欠き部１ａの開口と同方向と、切欠き部１ａ方向に開口した挿入溝１ｄが形成されているため、一方対向片５ａに溶接された溶接ナット２は挿入溝１ｄに挿入されるので、一方対向片５ａに溶接ナット２を溶接できるワーク５であれば、下部電極３にワーク５の他方対向片５ｂと溶接ナット２を保持でき、ワーク５の他方対向片５ｂの対向面にも溶接ナット２を溶接できる。 After that, the work 5 is removed from the electrode device, rotated 180 °, and as shown in FIG. 3, the insertion hole 5d of the other facing piece 5b of the work 5 and the screw hole 2b of the welding nut 2 are inserted into the guide pin 4 of the lower electrode 3. At the same time, the one facing piece 5a of the work 5 to which the welding nut 2 is welded is inserted into the notch 1a of the upper electrode 1 through the opening, and the work 5 and the welding nut 2 are held by the lower electrode 3. On the upper surface of the lower horizontal piece 1b forming the notch portion 1a of the upper electrode 1, an insertion groove 1d opened in the same direction as the opening of the notch portion 1a and in the direction of the notch portion 1a is formed. Since the weld nut 2 welded to the facing piece 5a is inserted into the insertion groove 1d, if the work 5 can weld the welding nut 2 to the facing piece 5a, it is welded to the other facing piece 5b of the work 5 on the lower electrode 3. The nut 2 can be held, and the weld nut 2 can be welded to the facing surface of the other facing piece 5b of the work 5.

さらに、図４に示すように、上部電極１を下降し、上部電極１を溶接ナット２に接触押圧させ溶接電流を上部電極１、溶接ナット２、ワーク５、及び下部電極３に流し、ワーク５の一方対向片５ａの対向面に溶接ナット２を溶接する。 Further, as shown in FIG. 4, the upper electrode 1 is lowered, the upper electrode 1 is contacted and pressed against the welding nut 2, and a welding current is passed through the upper electrode 1, the welding nut 2, the work 5, and the lower electrode 3, and the work 5 is used. The welding nut 2 is welded to the facing surface of the one facing piece 5a.

以上のように、上部電極１の下部に一方の側方が開口した切欠き部１ａを形成するとともに、この切欠き部１ａの下部水平片１ｂの上部に、上部の切欠き部１ａ側が開口し、ワーク５に溶接された溶接ナット２が挿入される挿入溝１ｃを形成したので、コ字形に折り曲げられたワーク５の対向片５ａ、５ｂの各々の対向面に溶接ナット２を溶接する場合、一方対向片５ａの対向面に溶接ナット２を溶接できれば他方対向片５ｂの対向面にも溶接ナット２を溶接でき、また前記挿入溝１ｃは、前記切欠き部１ａの開口と同方向の側方に開口したものであるので、ワーク５の一方対向片５ａの対向面に溶接された溶接ナット２は側方から挿入溝１ｃに挿入されるので、ワーク５と溶接ナット２の下部電極３への保持が容易にできる。 As described above, a notch 1a having one side open is formed in the lower part of the upper electrode 1, and the upper notch 1a side is opened in the upper part of the lower horizontal piece 1b of the notch 1a. Since the insertion groove 1c into which the welded nut 2 welded to the work 5 is inserted is formed, when the weld nut 2 is welded to the facing surfaces of the facing pieces 5a and 5b of the work 5 bent in a U shape, If the welding nut 2 can be welded to the facing surface of the facing piece 5a, the welding nut 2 can be welded to the facing surface of the other facing piece 5b, and the insertion groove 1c is lateral in the same direction as the opening of the notch 1a. Since the weld nut 2 welded to the facing surface of the one facing piece 5a of the work 5 is inserted into the insertion groove 1c from the side, the work 5 and the welding nut 2 are inserted into the lower electrode 3 of the work 5 and the welding nut 2. Can be easily held.

１ 上部電極
１ａ 切欠き部
１ｂ 下部水平片
１ｃ 挿入溝
２ 溶接ナット
３ 下部電極
４ ガイドピン
５ ワーク
５ａ、５ｂ 対向片1 Upper electrode 1a Notch 1b Lower horizontal piece 1c Insertion groove 2 Welding nut 3 Lower electrode 4 Guide pin 5 Work 5a, 5b Opposing piece

Claims (2)

上部電極とガイドピンを備えた下部電極とからなる抵抗溶接用電極装置において、上部電極の下部に一方の側方が開口した切欠き部を形成するとともに、この切欠き部の下部水平片の上部に、上部の切欠き部側が開口し、ワークに溶接された溶接ナットが挿入される挿入溝を形成したことを特徴とする抵抗溶接用電極装置。 In an electrode device for resistance welding consisting of an upper electrode and a lower electrode provided with a guide pin, a notch having one side open is formed at the lower part of the upper electrode, and the upper part of the lower horizontal piece of this notch is formed. An electrode device for resistance welding, characterized in that an upper notch side is opened to form an insertion groove into which a weld nut welded to the work is inserted. 前記挿入溝は、前記切欠き部の開口と同方向の側方に開口したことを特徴とした請求項１記載の抵抗溶接用電極装置。 The electrode device for resistance welding according to claim 1, wherein the insertion groove is opened laterally in the same direction as the opening of the notch portion.
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Citations (3)

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Publication number Priority date Publication date Assignee Title
JP6099490B2 (en) 2013-06-06 2017-03-22 株式会社Ｎａｃａｍｕｒａ Printing adhesive for bookbinding and bookbinding system using the printing adhesive
JP6292080B2 (en) 2014-08-21 2018-03-14 三菱ケミカル株式会社 Nonpolar or semipolar GaN substrate
JP6341376B2 (en) 2014-08-12 2018-06-13 三菱造船株式会社 Method and apparatus for vacuum rolling joining dissimilar metal materials

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6044072B2 (en) * 1984-10-15 1985-10-01 トヨタ自動車株式会社 Resistance welding machine equipped with automatic welding material supply device
JPS6292080U (en) * 1985-11-27 1987-06-12
JPH0357347Y2 (en) * 1986-08-26 1991-12-26
JPH11226750A (en) * 1998-02-17 1999-08-24 Dengensha Mfg Co Ltd Resistance welding machine for supplied parts

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6099490B2 (en) 2013-06-06 2017-03-22 株式会社Ｎａｃａｍｕｒａ Printing adhesive for bookbinding and bookbinding system using the printing adhesive
JP6341376B2 (en) 2014-08-12 2018-06-13 三菱造船株式会社 Method and apparatus for vacuum rolling joining dissimilar metal materials
JP6292080B2 (en) 2014-08-21 2018-03-14 三菱ケミカル株式会社 Nonpolar or semipolar GaN substrate

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