JP2579156Y2 - Welding equipment - Google Patents
Welding equipmentInfo
- Publication number
- JP2579156Y2 JP2579156Y2 JP1993062163U JP6216393U JP2579156Y2 JP 2579156 Y2 JP2579156 Y2 JP 2579156Y2 JP 1993062163 U JP1993062163 U JP 1993062163U JP 6216393 U JP6216393 U JP 6216393U JP 2579156 Y2 JP2579156 Y2 JP 2579156Y2
- Authority
- JP
- Japan
- Prior art keywords
- welding
- gun
- work
- intermediate electrode
- arm
- 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 - Fee Related
Links
Description
【０００１】[0001]
【産業上の利用分野】本考案は、溶接治具上でワークを
溶接する溶接装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a welding apparatus for welding a work on a welding jig.
【０００２】[0002]
【従来の技術】従来、溶接治具に、ワークを位置決め固
定するクランプ手段と、ワークの所定の打点部を挾圧す
る溶接治具のクランプ手段の取付面の法線方向と直交方
向に開閉自在な溶接ガンとを搭載し、該溶接ガンにより
前記打点部のスポット溶接を行うようにした溶接装置は
知られている。ここで、ワークが前記取付面から見て打
点部の手前に前記法線方向と直交方向に屈曲するフラン
ジ等の幅広の屈曲部を有するものである場合、従来はク
ランプ手段を屈曲部の前記取付面側の面を受けるワーク
受けとワーク受けとの間に屈曲部を挟圧固定する開閉自
在なクランプアームとを備えるものに構成すると共に、
溶接ガンを屈曲部の幅員より大きな開閉ストロークを有
するものに構成し、溶接治具に前記法線方向からワーク
を着脱する際にワークの屈曲部が溶接ガンに干渉しない
ようにしている。2. Description of the Related Art Conventionally, a clamp means for positioning and fixing a work to a welding jig and a clamp means of the welding jig for clamping a predetermined hitting point of the work can be freely opened and closed in a direction perpendicular to a normal direction of a mounting surface of the clamp means. 2. Description of the Related Art There is known a welding apparatus which is equipped with a welding gun and performs spot welding of the hitting point by the welding gun. Here, if the workpiece is one having a wide bent portion such as a flange which is bent in the normal direction and perpendicular direction to the front of the impact point portion when viewed from the mounting surface, conventionally the attachment of the bent portion of the clamping means A work receiver that receives the front side surface and an openable / closable clamp arm that clamps and fixes the bent portion between the work receiver and the work receiver,
The welding gun is configured to have a large opening stroke than the width of the bent portion, the bent portion of the work from the normal direction to the weld fixture when attaching and detaching the workpiece is prevented from interfering with the welding gun.
【０００３】[0003]
【考案が解決しようとする課題】上記従来例の如く溶接
ガンの開閉スロトークを大きくすると溶接ガンが大型化
し、溶接治具に搭載する他の機器との干渉を生じ易くな
って、溶接治具の設計が困難になることがある。If the opening / closing slot of the welding gun is increased as in the above-mentioned conventional example, the welding gun becomes large, and interference with other equipment mounted on the welding jig tends to occur. Design can be difficult.
【０００４】本考案は、以上の点に鑑み、打点部の手前
に屈曲部が有っても小型の溶接ガンで打点部の溶接を行
い得られるようした溶接装置を提供することをその目的
としている。SUMMARY OF THE INVENTION In view of the above, it is an object of the present invention to provide a welding apparatus capable of performing welding of a spot with a small welding gun even if there is a bent portion before the spot. I have.
【０００５】[0005]
【課題を解決するための手段】上記の目的を達成すべ
く、本考案は、溶接治具に、ワークを位置決め固定する
クランプ手段と、ワークの所定の打点部を挾圧する溶接
治具のクランプ手段の取付面の法線方向と直交方向に開
閉自在な溶接ガンとを搭載し、該溶接ガンにより前記打
点部のスポット溶接を行うようにした溶接装置であっ
て、ワークが溶接治具の前記取付面から見て前記打点部
の手前に前記法線方向と直交方向に屈曲する屈曲部を有
し、該屈曲部の前記取付面側の面を受けるワーク受け
と、該ワーク受けとの間に屈曲部を挟圧固定する開閉自
在なクランプアームとで前記クランプ手段を構成するも
のにおいて、前記クランプアームに、該クランプアーム
を閉じたときに前記打点部に対向する中間電極を前記溶
接ガンの開閉方向に摺動自在に、且つ、ばねで前記打点
部から離間する方向に付勢して設け、前記溶接ガンを該
中間電極を介して前記打点部を挟圧するように構成した
ことを特徴とする。SUMMARY OF THE INVENTION In order to achieve the above objects, the present invention provides a clamping means for positioning and fixing a work to a welding jig, and a clamping means for a welding jig for clamping a predetermined hitting point of the work. A welding gun mounted on the welding surface which can be opened and closed in a direction perpendicular to a normal direction of a mounting surface of the mounting surface , and performing spot welding of the hitting point by the welding gun, wherein the workpiece is attached to a welding jig. when viewed from the surface has a bent portion that is bent in the normal direction and perpendicular direction to the front of the RBI portion, a workpiece receiving for receiving the face of the mounting surface side of the bent portion, the bent between the workpiece receiving The clamp means comprises an openable / closable clamp arm for clamping and fixing the portion, wherein the clamp arm is provided with an intermediate electrode facing the hit point when the clamp arm is closed. Sliding on The standing, and provided for biasing in a direction away from the impact point unit by a spring, characterized by being configured so as pressed between the RBI portion the welding gun through the intermediate electrode.
【０００６】[0006]
【作用】ワークが打点部の手前に屈曲部を有するもので
ある場合、溶接ガンの開放時の開度は屈曲部の幅員より
広くする必要があるが、溶接ガンはこれを閉じたときに
打点部を中間電極を介して挾圧するように構成されてい
るため、溶接ガンの閉じ開度は打点部を直接する挾圧す
る場合に比し中間電極の長さ分広くなり、かくて溶接ガ
ンの開閉ストロークは小さくて済む。溶接治具に対する
ワークの着脱時はクランプアームが開放されて、該アー
ムと共に中間電極がワークに対する干渉領域外に退避さ
れ、かくて中間電極に邪魔されずにワークの着脱作業を
行い得られる。ところで、中間電極は、ワークの屈曲部
に対するクランプアームの挟圧方向たるクランプ手段の
取付面の法線方向に直交する方向（溶接ガンの開閉方
向）からワークの打点部に当接させる必要がある。そし
て、クランプアームの開閉動作に際し中間電極が打点部
に対する当接方向と直交方向に動くため、中間電極が打
点部近傍を擦り、ワークに擦り傷が付いたり中間電極の
摩擦を生ずる可能性がある。これに対し、本考案では、
中間電極を打点部から離間する方向に付勢しているた
め、クランプアームの開閉動作に際し中間電極がワーク
を擦ることはなく、ワークの傷付きや中間電極の摩耗が
防止される。When the workpiece has a bend before the hit point, the opening of the welding gun when it is opened must be wider than the width of the bend. Because the part is clamped via the intermediate electrode, the degree of closing of the welding gun is wider than that of clamping directly at the hit point by the length of the intermediate electrode, thus opening and closing the welding gun. The stroke can be small. When the work is attached to or detached from the welding jig, the clamp arm is opened, and the intermediate electrode is retracted out of the interference area with the work together with the arm, so that the work can be attached and detached without being obstructed by the intermediate electrode. By the way, the intermediate electrode is provided by a clamp means which is a clamping direction of the clamp arm with respect to the bent portion of the work .
It is necessary to make contact with the hit point of the work from a direction perpendicular to the normal direction of the mounting surface (opening / closing direction of the welding gun). When the clamp arm is opened and closed, the intermediate electrode moves in a direction orthogonal to the abutting direction with respect to the hitting portion, so that the intermediate electrode may rub the vicinity of the hitting portion, causing the work to be scratched or causing friction of the intermediate electrode. In contrast, in the present invention,
Since the intermediate electrode is urged in a direction away from the hitting portion, the intermediate electrode does not rub the work when opening and closing the clamp arm, thereby preventing damage to the work and abrasion of the intermediate electrode.
【０００７】[0007]
【実施例】図示の実施例は、自動車のサイドパネルＷ１
のリヤドア用開口部の後縁の凹入段差部Ｗ１ａの裏面に
補強板Ｗ２を溶接する装置に本考案を適用したものであ
る。DESCRIPTION OF THE PREFERRED EMBODIMENTS The illustrated embodiment shows a side panel W1 of an automobile.
The present invention is applied to a device for welding a reinforcing plate W2 to the back surface of a recessed step W1a at the rear edge of the rear door opening.
【０００８】図１乃至第３図を参照して、１はサイドパ
ネルＷ１をセット自在な溶接治具であり、該治具１に固
設したブラケット２に、リヤドア用開口部の後縁部分を
位置決め固定するクランプ手段３と、補強板Ｗ２を保持
する保持手段４と、凹入段差部Ｗ１ａに補強板Ｗ２を２
箇所の打点部でスポット溶接する１対の溶接ガン５．５
とを設けた。Referring to FIGS. 1 to 3, reference numeral 1 denotes a welding jig on which a side panel W1 can be freely set, and a rear edge portion of a rear door opening is attached to a bracket 2 fixed to the jig 1. Clamping means 3 for positioning and fixing, holding means 4 for holding the reinforcing plate W2, and reinforcing plate W2 at the recessed step W1a.
A pair of welding guns 5.5 for spot welding at spots
And provided.
【０００９】クランプ手段３は、リヤドア用開口部の後
縁の開口フランジＷ１ｂを受けるワーク受け３１と、該
ワーク受け３１に対しシリンダ３２により枢軸３３を支
点にして開閉動作されるクランプアーム３４とを備え、
クランプアーム３４の閉じ動作で開口フランジＷ１ｂを
ワーク受け３１との間に挾圧固定するように構成されて
いる。The clamp means 3 comprises a work receiver 31 for receiving an opening flange W1b at the rear edge of the rear door opening, and a clamp arm 34 which is opened and closed by a cylinder 32 about a pivot 33 as a fulcrum. Prepared,
The opening flange W1b is clamped and fixed to the work receiver 31 by the closing operation of the clamp arm 34.
【００１０】保持手段４は、ブラケット２に対しシリン
ダ４１により枢軸４２を支点にして揺動されるように支
持させた揺動枠４３に、補強板Ｗ２を保持する電磁石４
４付きの保持具４５を取付けて成るもので、揺動枠４３
を外方に揺動させた状態で保持具４５に補強板Ｗ２をセ
ットし、溶接治具１にサイドパネルＷ１をセットしてそ
の開口フランジＷ１ｂをクランプ手段３により挾圧固定
した後、揺動枠４３を内方に揺動させて凹入段差部Ｗ１
ａの裏面に補強板Ｗ２を突き当てるようにした。The holding means 4 comprises an electromagnet 4 for holding the reinforcing plate W2 on a swing frame 43 which is supported by the bracket 2 so as to be swung about a pivot 42 by a cylinder 41 as a fulcrum.
The holding frame 45 is attached to the swing frame 43.
Is set to the holder 45 in a state where it is swung outward, the side panel W1 is set to the welding jig 1, and the opening flange W1b is clamped and fixed by the clamp means 3, and then swung. The frame 43 is swung inward to form the recessed stepped portion W1.
The reinforcing plate W2 was made to abut against the back surface of a.
【００１１】前記両溶接ガン５．５は揺動枠４３の両側
面に延出した支持アーム４３ａ，４３ａに取付けられて
いる。各溶接ガン５は、図４に示す如く、１対の側板を
有するガンブラケット５１に固定した、補強板Ｗ２に当
接する固定ガンアーム５２と、該固定ガンアーム５２に
対向する可動ガンアーム５３とを備えるもので、可動ガ
ンアーム５３をその基端に取付けたアームホルダ５３ａ
上の１対の係合子５３ｂ，５３ｂを介してガンブラケッ
ト５１に形成したカム溝５４に係合し、ガンブラケット
５１に垂設した加圧シリンダ５５に連動するレバー５６
をアームホルダ５３ａに連結して、加圧シリンダ５５に
より可動ガンアーム５３が固定ガンアーム５２に対しカ
ム溝５４に案内されて開閉動作されるようにした。ま
た、ガンブラケット５１を前記レバー５６と共通の枢軸
５７を介して前記支持アーム４３ａに揺動自在に支持さ
せ、イコイライズ機能を得られるようにした。図中５８
は給電ケーブルを示す。The two welding guns 5.5 are mounted on support arms 43a, 43a extending on both sides of the swing frame 43. As shown in FIG. 4, each of the welding guns 5 includes a fixed gun arm 52 fixed to a gun bracket 51 having a pair of side plates and abutting on the reinforcing plate W2, and a movable gun arm 53 facing the fixed gun arm 52. The arm holder 53a having the movable gun arm 53 attached to its base end.
A lever 56 that engages with a cam groove 54 formed in the gun bracket 51 via the upper pair of engaging elements 53b, 53b, and is interlocked with a pressure cylinder 55 that is vertically mounted on the gun bracket 51.
Is connected to the arm holder 53a, and the movable gun arm 53 is guided by the cam groove 54 with respect to the fixed gun arm 52 by the pressurizing cylinder 55 to be opened and closed. Further, the gun bracket 51 is swingably supported by the support arm 43a via a pivot 57 common to the lever 56 so that an equalizing function can be obtained. 58 in the figure
Indicates a power supply cable.
【００１２】ところで、可動ガンアーム５３を凹入段差
部Ｗ１ａの補強板Ｗ２との打点部に当接させて、該打点
部を可動ガンアーム５３と固定ガンアーム５２とで直接
挾圧することも考えられるが、この場合には可動ガンア
ーム５３を開口フランジＷ１ｂに干渉しない開放位置と
凹入段差部Ｗ１ａに当接する閉じ位置との間に該フラン
ジＷ１ｂの幅員より大きなストロークで開閉動作させね
ばならず、溶接ガン５が大型化してしまう。Incidentally, it is conceivable that the movable gun arm 53 is brought into contact with the hitting portion of the recessed stepped portion W1a with the reinforcing plate W2, and the hitting portion is directly pressed by the movable gun arm 53 and the fixed gun arm 52. In this case, the movable gun arm 53 must be opened and closed with a stroke larger than the width of the flange W1b between an open position where it does not interfere with the opening flange W1b and a closed position where it comes into contact with the recessed step W1a. Becomes large.
【００１３】そこで、本実施例では、クランプ手段３の
前記クランプアーム３４に打点部に当接する中間電極６
を設け、溶接ガン５の可動ガンアーム５３を中間電極６
に当接させて、可動ガンアーム５３と固定ガンアーム５
２との間に中間電極６を介在させた状態で打点部を挾圧
し、可動ガンーム５３の開閉ストロークを中間電極６の
長さ分短縮し得るようにした。Therefore, in this embodiment, the intermediate electrode 6 which comes into contact with the hitting portion on the clamp arm 34 of the clamping means 3 is used.
And the movable gun arm 53 of the welding gun 5 is connected to the intermediate electrode 6.
The movable gun arm 53 and the fixed gun arm 5
With the intermediate electrode 6 interposed therebetween, the striking point is pressed, so that the opening / closing stroke of the movable gamme 53 can be shortened by the length of the intermediate electrode 6.
【００１４】中間電極６は、クランプアーム３４に取付
けたホルダ６１に２箇所の打点部に対応して１対に設け
られており、該各中間電極６をホルダ６１に摺動自在に
且つばね６２で打点部から離間する方向に付勢して支持
させ、可動ガンアーム５３の閉じ動作でこれに押されて
中間電極６が打点部に当接し、中間電極６と固定ガンア
ーム５２との間に打点部が挾圧されるようにした。かく
て、各溶接ガン５に給電ケーブル５８を介して給電すれ
ば、可動ガンアーム５３と固定ガンアーム５２との間に
中間電極６と打点部とを介して溶接電流が流れ、打点部
がスポット溶接される。The intermediate electrodes 6 are provided in a pair corresponding to two hit points on a holder 61 mounted on the clamp arm 34, and each of the intermediate electrodes 6 is slidably mounted on the holder 61 and a spring 62. The movable gun arm 53 is pushed by the closing operation of the movable gun arm 53 to contact the intermediate electrode 6 with the striking portion, and the striking portion is positioned between the intermediate electrode 6 and the fixed gun arm 52. Was pinched. Thus, when power is supplied to each of the welding guns 5 via the power supply cable 58, a welding current flows between the movable gun arm 53 and the fixed gun arm 52 via the intermediate electrode 6 and the spot, and the spot is spot-welded. You.
【００１５】以上、サイドパネルＷ１のリヤドア用開口
部の凹入段差部Ｗ１ａに補強板Ｗ２を溶接する実施例に
ついて説明したが、溶接治具１の治具本体側から見て打
点部の手前に上記実施例の開口フランジＷ１ｂに対応す
る幅広の屈曲部を有するワークの溶接に本考案は広く適
用できる。While the embodiment in which the reinforcing plate W2 is welded to the recessed step W1a of the rear door opening of the side panel W1 has been described above, the welding jig 1 is located just before the striking point when viewed from the jig body side. The present invention can be widely applied to welding of a work having a wide bent portion corresponding to the opening flange W1b of the above embodiment.
【００１６】[0016]
【考案の効果】以上の説明から明らかなように、本考案
によれば、手前に屈曲部を有するワークの打点部を開閉
ストロークの小さな小型の溶接ガンでスポット溶接でき
るため、溶接治具に搭載する他の機器に対する溶接ガン
の干渉を回避でき、溶接治具の設計が容易になる。[Effects of the Invention] As is clear from the above description, according to the present invention, the spot of a work having a bent portion in front can be spot-welded with a small welding gun having a small opening / closing stroke, so that it is mounted on a welding jig. Therefore, interference of the welding gun with other equipment can be avoided, and the design of the welding jig becomes easy.
【図１】 本案装置の一例の正面図FIG. 1 is a front view of an example of the device of the present invention.
【図２】 図１のII−II線から見た図FIG. 2 is a view taken along line II-II in FIG.
【図３】 図１のIII−III線から見た図FIG. 3 is a view taken along line III-III in FIG. 1;
【図４】 図２のIV−IV線から見た図FIG. 4 is a view taken along line IV-IV in FIG. 2;
１ 溶接治具 ３ クランプ手段 ３４ クランプアーム ５ 溶接ガン ６ 中間電極 DESCRIPTION OF SYMBOLS 1 Welding jig 3 Clamp means 34 Clamp arm 5 Welding gun 6 Intermediate electrode
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 実開 平１−10375（ＪＰ，Ｕ) 実公 昭62−13744（ＪＰ，Ｙ２) (58)調査した分野(Int.Cl.6，ＤＢ名) B23K 11/11──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model 1-10375 (JP, U) Japanese Utility Model 62-13744 (JP, Y2) (58) Fields surveyed (Int. Cl. 6 , DB name) B23K 11/11
Claims (1)
クランプ手段と、ワークの所定の打点部を挾圧する溶接
治具のクランプ手段の取付面の法線方向と直交方向に開
閉自在な溶接ガンとを搭載し、該溶接ガンにより前記打
点部のスポット溶接を行うようにした溶接装置であっ
て、ワークが溶接治具の前記取付面から見て前記打点部
の手前に前記法線方向と直交方向に屈曲する屈曲部を有
し、該屈曲部の前記取付面側の面を受けるワーク受け
と、該ワーク受けとの間に屈曲部を挟圧固定する開閉自
在なクランプアームとで前記クランプ手段を構成するも
のにおいて、前記クランプアームに、該クランプアーム
を閉じたときに前記打点部に対向する中間電極を前記溶
接ガンの開閉方向に摺動自在に、且つ、ばねで前記打点
部から離間する方向に付勢して設け、前記溶接ガンを該
中間電極を介して前記打点部を挟圧するように構成した
ことを特徴とする溶接装置。1. A welding gun which can be freely opened and closed in a direction perpendicular to a normal direction of a mounting surface of a clamping means of a welding jig which clamps a predetermined hitting point of the work on a welding jig. mounting the door orthogonal to a welding apparatus that performs spot welding of the strike portion by the welding gun, and the normal direction in front of the impact point portion workpiece when viewed from the mounting surface of the welding jig Clamping means comprising a work receiver having a bent portion bent in the direction and receiving the surface of the bent portion on the mounting surface side, and an openable and closable clamp arm for clamping and fixing the bent portion between the work receiver and the work receiver. In the clamp arm, when the clamp arm is closed, the intermediate electrode facing the hit point is slidable in the opening and closing direction of the welding gun, and is separated from the hit point by a spring. Attached to direction A welding device, wherein the welding gun is configured so as to squeeze the hitting point via the intermediate electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1993062163U JP2579156Y2 (en) | 1993-11-18 | 1993-11-18 | Welding equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1993062163U JP2579156Y2 (en) | 1993-11-18 | 1993-11-18 | Welding equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0733468U JPH0733468U (en) | 1995-06-20 |
| JP2579156Y2 true JP2579156Y2 (en) | 1998-08-20 |
Family
ID=13192180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1993062163U Expired - Fee Related JP2579156Y2 (en) | 1993-11-18 | 1993-11-18 | Welding equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2579156Y2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0343880Y2 (en) * | 1985-07-10 | 1991-09-13 | ||
| JPS6410375U (en) * | 1987-07-08 | 1989-01-19 |
-
1993
- 1993-11-18 JP JP1993062163U patent/JP2579156Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0733468U (en) | 1995-06-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |