JPS5844930Y2 - spot welding equipment - Google Patents
spot welding equipmentInfo
- Publication number
- JPS5844930Y2 JPS5844930Y2 JP16456879U JP16456879U JPS5844930Y2 JP S5844930 Y2 JPS5844930 Y2 JP S5844930Y2 JP 16456879 U JP16456879 U JP 16456879U JP 16456879 U JP16456879 U JP 16456879U JP S5844930 Y2 JPS5844930 Y2 JP S5844930Y2
- Authority
- JP
- Japan
- Prior art keywords
- welding
- welding gun
- spot welding
- gun
- electrodes
- 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
Description
【考案の詳細な説明】
本考案は、２枚の薄鋼板等をスポット状に溶着するのに
使用するスポット溶接装置の改良に関するものである。[Detailed Description of the Invention] The present invention relates to an improvement of a spot welding device used for spot welding two thin steel plates or the like.
この種のスポット溶接装置は、各種の製造分野で汎用さ
れている。This type of spot welding device is widely used in various manufacturing fields.
従来、可動電極側の溶接ガンを人手で操作することが困
難であるようなワーク内部等のスポット溶接では、可動
電極側の溶接ガンを回転可能に支持し、溶接ガンを一旦
、真直ぐに挿尺したうえで、所望の溶接個所捷で溶接ガ
ンを回動させ、外側から当てかった固定電極との間でス
ポット溶接を行なえるようにした回転式のスポット溶接
装置が用いられている。Conventionally, for spot welding inside a workpiece where it is difficult to manually operate the welding gun on the movable electrode side, the welding gun on the movable electrode side is rotatably supported, and the welding gun is once inserted straight. A rotary spot welding device is used in which the welding gun is rotated at a desired welding location and spot welding can be performed between the welding gun and a fixed electrode applied from the outside.
この種の回転式スポット溶接装置は１人手では困難な個
所や、ワーク内部の複数個所の溶接には確かに便利であ
るが、回転機構が必要であるうえ、溶接ガンの回転のた
めのスペースが必要であり、しかも任意の回転位置で溶
接ガンを固定電極に向けて加圧する加圧手段が必要であ
るため、機構が複雑となり、操作も困難であるといった
問題があった。This type of rotary spot welding device is certainly convenient for welding in places that are difficult to do by one person, or for welding multiple places inside a workpiece, but it requires a rotation mechanism and requires space for the welding gun to rotate. Moreover, since a pressurizing means is required to pressurize the welding gun toward the fixed electrode at an arbitrary rotational position, the mechanism is complicated and the operation is difficult.
本考案は、したがって、機構的にきわめて簡単な構造で
、人手では困難な溶接個所、とくに複数の溶接個所を簡
単な操作でスポット溶接することができるスポット溶接
装置を提供せんとするものである。Therefore, it is an object of the present invention to provide a spot welding device that has a mechanically extremely simple structure and is capable of spot welding locations that are difficult to weld manually, especially a plurality of weld locations, with simple operations.
このため、本考案においては、互いに向きを異ならせた
一対の重視を支持した溶接ガンの基部を首振り運動自在
に基盤上に軸支するとともに、溶接ガンの基部に結合し
た揺動アームを設けて、この揺動アームの自由端側を加
圧用シリンダのピストンロッドに連結し、常時は中立は
ねにより中立位置に保持した溶接ガンを加圧用シリンダ
の往動、又は復動で２つの溶接個所の間において首振り
運動させ、外側から当てかった固定電極との間で、夫々
スポット溶接を行なうことができるようにしたことを基
本的な特徴としている。For this reason, in the present invention, the base of the welding gun, which supports a pair of beams facing in different directions, is pivoted on a base so that it can swing freely, and a swing arm is provided that is connected to the base of the welding gun. The free end of this swinging arm is connected to the piston rod of the pressure cylinder, and the welding gun, which is normally held in the neutral position by the neutral spring, is moved forward or backward to move the welding gun to two welding locations. The basic feature is that spot welding can be performed between the electrodes and the fixed electrodes applied from the outside by swinging the electrodes between the two electrodes.
以下、図示の実施例について、本考案をより具体的に説
明する。Hereinafter, the present invention will be described in more detail with reference to the illustrated embodiments.
第１図において、１は基部１ａから相互に対向して伸び
た大略“へ”字形状の１対のアーム部１ｂ、１ｃの各先
端部の外側に、先端部の延長方向とは逆向きの方向に折
曲し、その折曲端が可動電極２，３として形成された一
対の可動電極部材４．５を夫々支持した溶接ガン、６は
溶接ガン１の基部１ａに設けた円筒部１ｄと一体に結合
され、溶接ガン１の対称軸線に沿って後方に伸びた揺動
アーム、Ｔは基台８側から支持した平行な一対のガイド
ロッド９，９によって前後方向にガイドされ、基台８の
後部に取付けたブラケツＮＯ，１０によって胴部が支持
された送り用シリンダ１１によって前進、後退駆動され
る基盤で、該基盤７の前縁部の−１ｌｌＩＩには、先端
が３角形状となった支持盤１２の基部を固定して支持し
、支持盤１２の先端側には、第２図に示すように、支軸
ピン１３を上向きに植設し、支軸ピン１３に前記溶接ガ
ン１の基部１ａの円筒部１ｄを軸受している。In FIG. 1, reference numeral 1 indicates a pair of arm portions 1b and 1c having a roughly “H” shape extending from the base portion 1a toward each other. A welding gun 4.5 is bent in a direction, and its bent ends support a pair of movable electrode members 4.5 formed as movable electrodes 2 and 3, respectively. The swinging arm T, which is integrally connected and extends rearward along the axis of symmetry of the welding gun 1, is guided in the front-rear direction by a pair of parallel guide rods 9, 9 supported from the base 8 side. The base is driven forward and backward by a feed cylinder 11 whose body is supported by a bracket NO. The base of the supporting plate 12 is fixed and supported, and a supporting shaft pin 13 is installed upward on the distal end side of the supporting plate 12, as shown in FIG. The cylindrical portion 1d of the base portion 1a is supported.
なお、上記揺動アーム６の後端は、後方修伸び、後端部
に設けた接触部６ｂＫば、給電ケーブル１４を常時接触
させ、溶接ガン１の各可動電極２，３への給電を行ｉう
。The rear end of the swing arm 6 extends rearward, and a contact portion 6bK provided at the rear end constantly contacts the power supply cable 14 to supply power to each of the movable electrodes 2 and 3 of the welding gun 1. I.
一方、１５は第３図に示すように、基盤７の側縁から突
出された支持ブラケット１６に軸受１７により軸受され
た支軸ピン１８によう揺動可能に胴部が軸支された加圧
用シリンダで、この加圧用シリンダ１５のピストンロッ
ド１５ａは、前記揺動アーム６の中間部に向って揺動ア
ーム６とほぼ直交する方向に伸び、連結金具２０を介し
て、揺動アーム６に連結されている。On the other hand, as shown in FIG. 3, reference numeral 15 is a pressurizing device whose body is pivotably supported by a support pin 18 which is supported by a bearing 17 on a support bracket 16 protruding from the side edge of the base 7. A piston rod 15a of this pressurizing cylinder 15 extends in a direction substantially perpendicular to the swing arm 6 toward the middle part of the swing arm 6, and is connected to the swing arm 6 via a connecting fitting 20. has been done.
この連結金具２０は是第３図に示すように、揺動アーム
６の上下に嵌合し、揺動アーム６の中間部に設けた連結
孔６ａに挿通した段付ピンよりなる連結ピン２１によっ
て揺動アーム６に相対揺動可能に連結されている。As shown in FIG. 3, this connecting fitting 20 is fitted on the upper and lower sides of the swinging arm 6, and is connected by a connecting pin 21 made of a stepped pin inserted into a connecting hole 6a provided in the middle of the swinging arm 6. It is connected to the swing arm 6 so that it can swing relative to it.
さらに、上記連結ピン２１の連結金具２０より上側の大
径部２１ａには、等しいバネ定数および長さを有する一
対のコイルスプリング２２ 、２３の一端を掛は合わせ
、一方のコイルスプリング２２の他端は、加圧用シリン
ダ１５のシリンダ部前部上に固定したばね掛はピン２４
に掛は合せ、他方のコイルスプリング２３の他端は、基
盤７の加圧用シリンダ１５の支持側とは反対側に立上ら
せて設けた支持アーム２５から、ボルト・ナツトにより
位置調節可能に支持された支持金具２６に取付けられた
はね掛はピン２７に掛は合わせる。Further, one ends of a pair of coil springs 22 and 23 having the same spring constant and length are hooked onto the large diameter portion 21a above the connecting fitting 20 of the connecting pin 21, and the other end of one coil spring 22 is fitted together. The spring hook fixed on the front part of the cylinder part of the pressurizing cylinder 15 is connected to the pin 24.
The position of the other end of the other coil spring 23 can be adjusted using bolts and nuts from a support arm 25 that is raised up on the side opposite to the support side of the pressure cylinder 15 of the base 7. The spring hook attached to the supported support fitting 26 is aligned with the pin 27.
このばね掛はピン２７は、対称軸線に関して、加圧用シ
リンダ１５側のばね掛はピン２４と点対称となるように
位置を調節する。The position of this spring hook pin 27 is adjusted so that the spring hook on the pressure cylinder 15 side is point symmetrical with the pin 24 with respect to the axis of symmetry.
上記溶接ガン１は、例たば第４図に例示するような自動
車車体のノズルパネル組立て体の溶接に適するように形
成したものである。The welding gun 1 is formed to be suitable for welding a nozzle panel assembly of an automobile body, for example, as illustrated in FIG.
すなわち、下向きに湾曲したアッパーパネル３０と上向
きに湾曲したロアパネル３１とにランブフ゛ラケット３
２を組付け、両・ζネル３０．３１の端部にランプブラ
ケット３２のフランジ面３２ａを押し当てた状態で、図
にＡ、Ｂで示す２個所を溶接するものである。That is, the lamp racket 3 is attached to the downwardly curved upper panel 30 and the upwardly curved lower panel 31.
2 is assembled, and with the flange surface 32a of the lamp bracket 32 pressed against the ends of both ζ-flanks 30 and 31, the two locations indicated by A and B in the figure are welded.
そして、１ず溶接ガン１を前進駆動し、第１図に仮想線
４９口で首振り位置を示すように、溶接ガン１を首振り
させ、Ａ点側に首振りさせたときには、Ａ点の外側に当
てかった固定電極３４と可動電極２との間で、アラ・ζ
−パネル３１とランプブラケット３２とを加圧状態に保
持した状態でＡ点のスポット溶接を行なうことができ、
！、たＢ点側に首振りさせたときには、固定電極３５と
の間でＢ点のスポット溶接が行なえるようにしている。1. First, the welding gun 1 is driven forward, and when the welding gun 1 is swung toward point A, as shown in FIG. Between the fixed electrode 34 applied to the outside and the movable electrode 2,
- Spot welding at point A can be performed while the panel 31 and lamp bracket 32 are held in a pressurized state;
! , when the head is swung toward point B, spot welding at point B can be performed with the fixed electrode 35.
この溶接ガン１の首振りは、前記加圧用シリンダ１５を
往動させ、ピストンロッド１５ａを押し出して、揺動ア
ーム６を支軸ピン１３の廻りで第１図の時計廻りに揺動
させることにより、可動電極２をＡ点側に抑圧状態に首
振りさせ、反対に、ピストンロッド１５ａを引き込むこ
とにより、可動電極３をＢ点側に首振りさせる。Swinging of the welding gun 1 is achieved by moving the pressurizing cylinder 15 forward, pushing out the piston rod 15a, and swinging the swinging arm 6 around the support pin 13 clockwise in FIG. , the movable electrode 2 is swung toward point A in a suppressed state, and conversely, the movable electrode 3 is swung toward point B by retracting the piston rod 15a.
そして、Ａ点、Ｂ点のスポット溶接が終了し、加圧用シ
リンダ１５に接続された図示しない制御弁を中立位置に
制御すると、一対のコイルスプリング２２．２３のばね
力によって、溶接ガン１が中立位置となる１で自動的に
復帰される。When the spot welding at points A and B is completed and the control valve (not shown) connected to the pressurizing cylinder 15 is controlled to the neutral position, the welding gun 1 is moved to the neutral position by the spring force of the pair of coil springs 22 and 23. It is automatically returned to position 1.
中立状態に溶接ガン１が復帰されたときには、送り用シ
リンダ１１を後退駆動し、基板７とともに支持した溶接
ガン１を後退させ、開口部の外側捷で溶接ガン１を引き
出して一回の溶接作業を終了する。When the welding gun 1 is returned to the neutral state, the feed cylinder 11 is driven backward, the welding gun 1 supported together with the substrate 7 is moved backward, and the welding gun 1 is pulled out with the outer edge of the opening to perform one welding operation. end.
な釦、上記溶接ガン１は、溶接個所等に応じて適当な形
状とすればよく、また、溶接ガン１を中立位置に自動復
帰させる一対のコイルスプリング２２．２３の代りに、
図示しないが、ワイヤばね等を用いて、常時溶接ガン１
を中立位置に保持するようにしてもよい。The welding gun 1 may have an appropriate shape depending on the welding location, etc., and instead of the pair of coil springs 22 and 23 that automatically return the welding gun 1 to the neutral position,
Although not shown, the welding gun 1 is constantly
may be held at a neutral position.
以上詳細に説明したことから明らかなように本考案は、
一対の可動電極を向きを異ならせて支持した溶接ガンを
基盤上に首振り可能に軸支し、溶接ガンと一体の揺動ア
ームを加圧用シリンダの往復動で溶接ガンを２個所の溶
接個所の間で首振り運動させ、２個所を順次にスポット
溶接するようにしたスポット溶接装置を提供するもので
ある。As is clear from the detailed explanation above, the present invention
A welding gun, which supports a pair of movable electrodes in different directions, is pivotally supported on a base so that it can swing, and a swinging arm integrated with the welding gun moves the welding gun to two welding locations by reciprocating the pressure cylinder. The present invention provides a spot welding device which performs spot welding at two locations sequentially by swinging between the two locations.
本考案によれば、したがって、溶接ガンを比較的小さな
角度だけ両方向に揺動させるだけでよいから、溶接ガン
を大きく回転させるだけのスペースがない溶接個所でも
容易に溶接することができ、しかも、溶接ガンの首振り
と可動電極の加圧とを単一の加圧用シリンダによって同
時に達成することができるので、機構を著しく簡単化す
ることができ、安価に製作することができるうえ、操作
が簡単であるため、この種溶接作業の自動化をも図るこ
とかできるといった効果を得ることができる。According to the present invention, the welding gun only needs to be swung by a relatively small angle in both directions, so welding can be easily performed even at welding locations where there is not enough space to rotate the welding gun by a large amount. Since the swing of the welding gun and the pressurization of the movable electrode can be achieved simultaneously with a single pressurizing cylinder, the mechanism can be significantly simplified, and it can be manufactured at low cost and is easy to operate. Therefore, it is possible to achieve the effect that this type of welding work can be automated.
第１図は本考案の一実施例に係るスポット溶接装置の平
面図、第２図は同部分断面正面図、第３図は第１図のＩ
ｎ−ＩＩＩ線方向断面図、第４図はスポット溶接の個所
を示す説明図である。
１・・・・・・溶接ガン、２，３・・・・・・可動電極
、６・・・・・・揺動アーム、７・・・・・・基盤、１
３・・・・・・支軸ピン、１５・・・・・・加圧用シリ
ンダ、２２，２３・・・・・・コイルスプリング。FIG. 1 is a plan view of a spot welding device according to an embodiment of the present invention, FIG. 2 is a partially sectional front view of the same, and FIG. 3 is an I of FIG.
FIG. 4 is a sectional view taken along the line n-III, and is an explanatory diagram showing spot welding locations. 1... Welding gun, 2, 3... Movable electrode, 6... Rocking arm, 7... Base, 1
3... Support shaft pin, 15... Pressure cylinder, 22, 23... Coil spring.
Claims (1)
首振り可能に軸支された溶接ガンと、溶接ガンに結合さ
れた揺動アームと、揺動アームに連結したピストンロッ
ドの往復動によって溶接ガンを両電極の加圧方向に首振
りさせる加圧用シリンダと、加圧用シリンダの非作動時
溶接ガンを中立位置に保持する中立ばねとを備え、２つ
の溶接個所に夫々当がった固定電極との間で、夫々スポ
ット溶接を行なうようにしたことを特徴とするスポット
溶接装置。Welding is achieved by the reciprocating motion of a welding gun that supports a pair of electrodes in different directions and is swingably supported on a base, a swinging arm connected to the welding gun, and a piston rod connected to the swinging arm. The fixed electrodes are equipped with a pressure cylinder that swings the gun in the direction of applying pressure to both electrodes, and a neutral spring that holds the welding gun in a neutral position when the pressure cylinder is not activated. A spot welding device characterized in that spot welding is performed between the two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16456879U JPS5844930Y2 (en) | 1979-11-27 | 1979-11-27 | spot welding equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16456879U JPS5844930Y2 (en) | 1979-11-27 | 1979-11-27 | spot welding equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5680986U JPS5680986U (en) | 1981-06-30 |
| JPS5844930Y2 true JPS5844930Y2 (en) | 1983-10-12 |
Family
ID=29675509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16456879U Expired JPS5844930Y2 (en) | 1979-11-27 | 1979-11-27 | spot welding equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5844930Y2 (en) |
-
1979
- 1979-11-27 JP JP16456879U patent/JPS5844930Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5680986U (en) | 1981-06-30 |
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