JPH0128951Y2 - - Google Patents
Info
- Publication number
- JPH0128951Y2 JPH0128951Y2 JP1983161197U JP16119783U JPH0128951Y2 JP H0128951 Y2 JPH0128951 Y2 JP H0128951Y2 JP 1983161197 U JP1983161197 U JP 1983161197U JP 16119783 U JP16119783 U JP 16119783U JP H0128951 Y2 JPH0128951 Y2 JP H0128951Y2
- Authority
- JP
- Japan
- Prior art keywords
- workpiece
- welding
- fixed
- electrode
- movable
- 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.)
- Expired
Links
- 238000003466 welding Methods 0.000 claims description 54
- 230000007547 defect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Description
【考案の詳細な説明】
本考案は抵抗溶接機、さらに詳しくは加圧方向
の異なる溶接部位を溶接するのに使用する抵抗溶
接機に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a resistance welding machine, and more particularly to a resistance welding machine used for welding welding parts in different pressurizing directions.
イ 従来技術
例えば車両生産工程において第１図に示す如き
閉断面構造を有するワークＷのアウタパネル１お
よびインナパネル２の両側溶接部位３，３をスポ
ツト溶接する場合、従来は各パネル１，２をワー
ク位置決めホルダー４により位置決め保持した
後、１個の可動電極５を上記溶接部位３，３にそ
つて移動させ、上記ワーク位置決めホルダー４に
一体に固設された固定電極６，６に上記可動電極
５をワーク溶接部位３，３を介して押し付けるこ
とにより加圧溶接している。ところが、上記固定
電極６，６は長期間使用すると摩耗し、これが為
可動電極５による加圧溶接時ワーク溶接部位３，
３と固定電極６，６とが完全に密着せず、溶接不
良が生じるという問題があつた。B. Prior Art For example, when spot welding the welding parts 3, 3 on both sides of the outer panel 1 and the inner panel 2 of the workpiece W having a closed cross-sectional structure as shown in FIG. 1 in the vehicle production process, conventionally each panel 1, 2 was After being positioned and held by the positioning holder 4, one movable electrode 5 is moved along the welding parts 3, 3, and the movable electrode 5 is moved to the fixed electrodes 6, 6 which are integrally fixed to the workpiece positioning holder 4. Pressure welding is performed by pressing the workpieces through the welding parts 3, 3. However, the fixed electrodes 6, 6 are worn out when used for a long period of time, and as a result, during pressure welding by the movable electrode 5, the workpiece welding area 3,
3 and the fixed electrodes 6, 6 did not come into complete contact with each other, resulting in poor welding.
ロ 考案の目的
本考案の目的は可動電極によるワークの加圧溶
接時可動電極と対向設置した固定電極とワーク溶
接部とが常に密着し、溶接不良の生じることのな
い抵抗溶接機を提供することにある。B. Purpose of the invention The purpose of the invention is to provide a resistance welding machine in which a fixed electrode placed opposite the movable electrode and the workpiece weld are always in close contact with each other during pressure welding of a workpiece using a movable electrode, thereby preventing welding defects. It is in.
ハ 考案の構成
本考案は、所定の間隔を隔てて設置した一対の
固定電極と、上記固定電極に対向して該固定電極
に対して所定のタイミングで個別的に進退移動可
能に保持された可動電極と、固定電極間に幅方向
に移動可能に設けられ、かつワークを固定電極に
対して密着移動可能に位置決め保持するワーク位
置決めホルダーとで構成したものである。C. Structure of the invention The invention consists of a pair of fixed electrodes installed at a predetermined interval, and a movable electrode that faces the fixed electrodes and is held so as to be able to move forward and backward individually with respect to the fixed electrodes at a predetermined timing. It is composed of an electrode and a workpiece positioning holder that is movably provided in the width direction between the fixed electrodes and positions and holds the workpiece in close contact with the fixed electrode so that the workpiece can be moved.
ニ 実施例
第２図は本考案の実施例を示す。同図におい
て、１１ａ，１１ｂは所定の間隔を隔てて設けた
一対の固定電極で、この固定電極１１ａ，１１ｂ
は部材１２ａ，１２ｂに取付固定されている。１
３ａ，１３ｂは先部に可動電極１４ａ，１４ｂを
有する溶接ガンで、この溶接ガン１３ａ，１３ｂ
は上記固定電極１１ａ，１１ｂの外側位置に該固
定電極１１ａ，１１ｂに対して所定のタイミング
で個別的に進退移動可能に保持されている。１５
は接合部材たる所定長さのワークW′を位置決め
するための位置決め装置で、この位置決め装置１
５は幅方向両側対称位置に設置した支持部材１８
ａ，１８ｂ間に架設したガイド棒１９とこのガイ
ド棒１９にスライド可能に装着した逆Ｔ字形状の
ワーク位置決めホルダー２０とで構成されてい
る。上記ワーク位置決めホルダー２０は、その下
端支持穴部２１をボールベアリング等を介して上
記ガイド棒１９に嵌挿することにより上記溶接ガ
ン１３ａ，１３ｂの加圧溶接時における加圧力で
幅方向に移動可能に軸支して、その直立部２２を
起立保持し、かつ該直立部２２の上端及びその下
方所定部位にワーク支持部２３，２４を形成した
もので、上記ワーク支持部２３，２４に前記ワー
クW′の略中心部位を載置して位置決め保持した
ときワーク溶接部位２５ａ，２５ｂが上記固定電
極１１ａ，１１ｂと可動電極１４ａ，１４ｂとの
間に位置し、かつワーク溶接部位２５ａ，２５ｂ
と固定電極１１ａ，１１ｂ間にはワークW′の寸
法バラツキを許容するための〓間が形成されるよ
うに構成されている。D. Embodiment FIG. 2 shows an embodiment of the present invention. In the same figure, 11a and 11b are a pair of fixed electrodes provided at a predetermined interval, and these fixed electrodes 11a and 11b are
are attached and fixed to the members 12a and 12b. 1
Welding guns 3a and 13b have movable electrodes 14a and 14b at their tips, and these welding guns 13a and 13b
are held at positions outside the fixed electrodes 11a, 11b so as to be able to move forward and backward individually with respect to the fixed electrodes 11a, 11b at predetermined timings. 15
is a positioning device for positioning a workpiece W′ of a predetermined length which is a joining member, and this positioning device 1
5 is a support member 18 installed at symmetrical positions on both sides in the width direction.
It consists of a guide rod 19 installed between a and 18b, and an inverted T-shaped workpiece positioning holder 20 slidably attached to the guide rod 19. The workpiece positioning holder 20 can be moved in the width direction by the pressure applied by the welding guns 13a and 13b during pressure welding by fitting its lower end support hole 21 into the guide rod 19 via a ball bearing or the like. The upright part 22 is held upright by being pivotally supported by the upright part 22, and workpiece support parts 23 and 24 are formed at the upper end of the upright part 22 and at predetermined positions below the upright part 22. When the approximately central part of W' is placed and held in position, the workpiece welding parts 25a, 25b are located between the fixed electrodes 11a, 11b and the movable electrodes 14a, 14b, and the workpiece welding parts 25a, 25b
A gap is formed between the fixed electrodes 11a and 11b to allow for variations in the dimensions of the workpiece W'.
而して、ワークW′の溶接部位２５ａ，２５ｂ
を溶接する場合は、上記位置決め装置１５を構成
するワーク位置決めホルダー２０のワーク支持部
２３，２４にワークW′の略中央部を載置して位
置決め保持し、そのワーク溶接部位２５ａ，２５
ｂを上記固定電極１１ａ，１１ｂと可動電極１４
ａ，１４ｂとの間に位置させる。そして、先ず一
側の可動電極１４ａを前進させると、ワーク
W′は位置決めホルダー２０とともに固定電極１
１ａに密着するように移動するので溶接部位２５
ａは両電極１４ａ，１１ａにより十分加圧され
る。これが終わると、可動電極１４ａは後退し、
これと同時に他側の可動電極１４ｂが前進し、そ
の加圧動作により上記と同様に溶接部位２５ｂの
所定個所が溶接される。こうしてワークW′の溶
接部位２５ａ，２５ｂの所定個所の溶接が終わる
と、溶接ガン１３ａ，１３ｂはワーク溶接部位２
５ａ，２５ｂにそつて間欠的に移動し、順次上記
の要領でワーク溶接部位２５ａ，２５ｂをスポツ
ト溶接する。そして、ワークW′の溶接を繰り返
すと、溶接電極１１ａ，１１ｂの表面が摩耗し、
該固定電極１１ａ，１１ｂとワーク溶接部位２５
ａ，２５ｂとの間の〓間が大きくなるが、前述の
如くワークW′を位置決め保持しているワーク位
置決めホルダー２０はガイド棒１９にそつて幅方
向に移動可能に設けてあるので、溶接時に可動電
極１４ａ，１４ｂがワーク溶接部位２５ａ，２５
ｂに押し付けられると、その押付力により上記位
置決めホルダー２０はワーク溶接部位２５ａ，２
５ｂが固定電極１１ａ，１１ｂに密着するまで移
動する。上記固定電極１１ａ，１１ｂとワーク溶
接部位２５ａ，２５ｂとが密着すると、溶接ガン
１３ａ，１３ｂの加圧力により上記ワーク溶接部
位２５ａ，２５ｂは加圧溶接される。この加圧溶
接は上述の如く可動電極１４ａ，１４ｂが所定の
タイミングで個別的に進退移動するので、ワーク
溶接部位２５ａ，２５ｂは交互にスポツト溶接さ
れる。 Therefore, the welding parts 25a and 25b of the workpiece W'
When welding the workpiece W', the approximately central part of the workpiece W' is placed on the workpiece support parts 23 and 24 of the workpiece positioning holder 20 constituting the positioning device 15 and held in position, and the workpiece welding parts 25a and 25 are welded.
b is the fixed electrode 11a, 11b and the movable electrode 14.
a and 14b. Then, when the movable electrode 14a on one side is moved forward, the workpiece is moved forward.
W' is the fixed electrode 1 together with the positioning holder 20.
The welding area 25 moves so as to be in close contact with 1a.
a is sufficiently pressurized by both electrodes 14a and 11a. When this is finished, the movable electrode 14a retreats,
At the same time, the movable electrode 14b on the other side moves forward, and due to its pressurizing action, a predetermined portion of the welding portion 25b is welded in the same manner as described above. When the welding of the predetermined parts of the welding parts 25a and 25b of the workpiece W' is completed in this way, the welding guns 13a and 13b
5a, 25b intermittently, and sequentially spot weld the workpiece welding parts 25a, 25b in the above manner. When the workpiece W' is repeatedly welded, the surfaces of the welding electrodes 11a and 11b are worn out,
The fixed electrodes 11a, 11b and the workpiece welding area 25
a and 25b will be larger, but since the workpiece positioning holder 20 that positions and holds the workpiece W' is movable in the width direction along the guide rod 19 as described above, it will be easier to move during welding. Movable electrodes 14a, 14b are welding parts 25a, 25 of workpieces
b, the positioning holder 20 is pressed against the workpiece welding parts 25a, 2 due to the pressing force.
5b is moved until it comes into close contact with the fixed electrodes 11a and 11b. When the fixed electrodes 11a, 11b and the workpiece welding parts 25a, 25b come into close contact, the workpiece welding parts 25a, 25b are pressure-welded by the pressure of the welding guns 13a, 13b. In this pressure welding, as described above, the movable electrodes 14a and 14b move forward and backward individually at predetermined timing, so that the workpiece welding parts 25a and 25b are alternately spot-welded.
尚、上記固定電極１１ａ，１１ｂとワーク
W′の溶接部位２５ａ，２５ｂ間には該ワーク
W′の寸法バラツキを許容するための〓間が形成
されているので、未摩耗状態の固定電極であつて
もワーク溶接部位２５ａ，２５ｂとの間に大きな
〓間が形成されるおそれがある。しかし、この場
合でも上述のように位置決め装置１５のワーク位
置決めホルダー２０は溶接ガン１３ａ，１３ｂの
加圧溶接時における加圧力によつて移動するの
で、上記固定電極とワーク溶接部位２５ａ，２５
ｂとは十分に密着し、溶接不良が生じるようなこ
とはない。 Note that the fixed electrodes 11a, 11b and the workpiece
The workpiece is located between the welding parts 25a and 25b of W'.
Since a gap is formed to allow for dimensional variations in W', even if the fixed electrode is in an unworn state, a large gap may be formed between it and the workpiece welding parts 25a and 25b. However, even in this case, as described above, the workpiece positioning holder 20 of the positioning device 15 is moved by the pressure applied by the welding guns 13a, 13b during pressure welding, so that the fixed electrode and the workpiece welding parts 25a, 25
(b) and there is no possibility of welding defects.
ホ 考案の効果
本考案によれば、固定電極が摩耗しても溶接ガ
ンによる加圧溶接時には該固定電極とワークの溶
接部位とは常に十分密着し、溶接不良が生じるこ
とはない。また固定電極の使用可能な摩耗限界が
拡大し、それだけコストの低減化を図ることがで
きる。E. Effects of the Invention According to the invention, even if the fixed electrode is worn out, the fixed electrode and the welding part of the workpiece always come into close contact with each other during pressure welding with a welding gun, and no welding defects occur. Furthermore, the usable wear limit of the fixed electrode is expanded, and costs can be reduced accordingly.
第１図は従来の抵抗溶接機の説明図、第２図は
本考案に係る抵抗溶接機の説明図である。
１１ａ，１１ｂ……固定電極、１４ａ，１４ｂ
……可動電極、W′……ワーク、２０……位置決
めホルダー、２５ａ，２５ｂ……ワーク溶接部
位。
FIG. 1 is an explanatory diagram of a conventional resistance welding machine, and FIG. 2 is an explanatory diagram of a resistance welding machine according to the present invention. 11a, 11b... Fixed electrode, 14a, 14b
...Movable electrode, W'...Workpiece, 20...Positioning holder, 25a, 25b...Workpiece welding site.
Claims (1)
と、上記固定電極に対向して該固定電極に対して
所定のタイミングで個別的に進退移動可能に保持
された可動電極と、固定電極間に幅方向に移動可
能に設けられ、かつワークを固定電極に対して密
着移動可能に位置決め保持するワーク位置決めホ
ルダーとで構成したことを特徴とする抵抗溶接
機。 A pair of fixed electrodes installed at a predetermined interval, a movable electrode that faces the fixed electrode and is held so as to be able to move forward and backward individually with respect to the fixed electrode at a predetermined timing, and a width between the fixed electrodes. 1. A resistance welding machine comprising: a workpiece positioning holder which is movable in the direction and which positions and holds the workpiece in close contact with a fixed electrode in a movable manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16119783U JPS6071485U (en) | 1983-10-18 | 1983-10-18 | resistance welding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16119783U JPS6071485U (en) | 1983-10-18 | 1983-10-18 | resistance welding machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6071485U JPS6071485U (en) | 1985-05-20 |
| JPH0128951Y2 true JPH0128951Y2 (en) | 1989-09-04 |
Family
ID=30354334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16119783U Granted JPS6071485U (en) | 1983-10-18 | 1983-10-18 | resistance welding machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6071485U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0714554B2 (en) * | 1986-01-16 | 1995-02-22 | 本田技研工業株式会社 | Welding device for automobile fuel adapter |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS523383U (en) * | 1975-06-24 | 1977-01-11 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53163352U (en) * | 1977-05-31 | 1978-12-21 |
-
1983
- 1983-10-18 JP JP16119783U patent/JPS6071485U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS523383U (en) * | 1975-06-24 | 1977-01-11 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6071485U (en) | 1985-05-20 |
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