JPS6217174Y2 - - Google Patents
Info
- Publication number
- JPS6217174Y2 JPS6217174Y2 JP14407082U JP14407082U JPS6217174Y2 JP S6217174 Y2 JPS6217174 Y2 JP S6217174Y2 JP 14407082 U JP14407082 U JP 14407082U JP 14407082 U JP14407082 U JP 14407082U JP S6217174 Y2 JPS6217174 Y2 JP S6217174Y2
- Authority
- JP
- Japan
- Prior art keywords
- base
- holding
- movable
- welding
- movable base
- 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 36
- 210000000078 claw Anatomy 0.000 description 7
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
Description
【考案の詳細な説明】
本考案は、単一の駆動装置により溶接ガンを直
線及び円弧に沿つて割出しできるようにした溶接
装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a welding device in which a welding gun can be indexed along straight lines and arcs by a single drive device.
従来のこの種溶接装置は、第1図に示すよう
に、溶接ガンの電極チツプa,bを溶接物Wの直
線l及び円弧rに沿つて移動させ、各溶接箇所P1
〜P4でスポツト溶接する場合、直線移動可能な可
動台上に、溶接ガンを保持した保持台を旋回可能
に設け、可動台を直動シリンダにより、また保持
台を別の旋回シリンダにより作動せしめていた。
即ち、2個の駆動装置により溶接ガンを直線及び
円弧に沿つて割出していたため、溶接装置が複雑
で大型化するという欠点があつた。 As shown in FIG. 1, this type of conventional welding equipment moves electrode tips a and b of a welding gun along a straight line l and an arc r of a workpiece W to weld each welding point P1.
~ When performing spot welding in P 4 , a holding table holding a welding gun is installed on a movable table that can be moved in a straight line so that it can rotate, and the movable table is operated by a linear cylinder and the holding table is operated by another rotating cylinder. was.
That is, since the welding gun was indexed along a straight line and a circular arc using two driving devices, the welding apparatus had the drawback of becoming complicated and large.
このため本考案は、溶接ガンの直線及び円弧に
沿つた割出しを単一の駆動装置により行なう様に
構成して溶接装置の簡素化、小形化を図り、上記
従来装置の欠点を解消することを目的とするもの
である。 Therefore, the present invention aims to simplify and downsize the welding device by configuring the welding gun to be indexed along straight lines and arcs by a single drive device, thereby solving the drawbacks of the conventional devices described above. The purpose is to
以下、本考案の実施例を添付図面に基づいて説
明する。第2図、第3図の如く、固定ベース1上
には支持体3,4間に架設された2本のパイロツ
トバー5に沿つて可動台2が摺動可能に装着され
ている。前記可動台2上には回転軸6により該軸
6の回りに旋回可能な如くに保持台7が支持され
ている。該保持台7の上方には支持ブロツク13
(第4図)を介して溶接ガン12が保持されてお
り、前記溶接ガン12には、先端部に一対の電極
チツプ8,9が装着されて開閉自在な如くに枢支
された一対の回動アーム10,11が設けられて
いる。前記電極チツプ8,9の中心は回転軸6の
中心に対して溶接物Wの円孤半径だけオフセツト
されている。 Embodiments of the present invention will be described below with reference to the accompanying drawings. As shown in FIGS. 2 and 3, a movable base 2 is mounted on a fixed base 1 so as to be slidable along two pilot bars 5 installed between supports 3 and 4. A holding table 7 is supported on the movable table 2 so as to be rotatable about a rotating shaft 6. Above the holding table 7 is a support block 13.
A welding gun 12 is held through the welding gun 12 (FIG. 4), and the welding gun 12 has a pair of rotary tips attached to the distal end thereof and pivoted so as to be openable and closable. Movable arms 10, 11 are provided. The centers of the electrode tips 8 and 9 are offset from the center of the rotating shaft 6 by the arc radius of the workpiece W to be welded.
また前記一対の回動アーム10,11のそれぞ
れの下端には加圧用シリンダ14とピストンロツ
ド16のそれぞれの先端部がピン10a,11a
によつて枢着されている。前記シリンダ14内に
は油圧室(図示せず)が形成され、該油圧室に油
圧を送ることによりピストン16とシリンダ14
とが軸方向に互いに相対移動するため回動アーム
10,11がピン15a,15bの軸心回りにそ
れぞれ互いに逆方向に回動することとなり電極チ
ツプ8,9の開閉運動がなされる。 Further, at the lower ends of the pair of rotating arms 10 and 11, the tip ends of the pressure cylinder 14 and the piston rod 16 are attached to pins 10a and 11a, respectively.
It is pivoted by. A hydraulic chamber (not shown) is formed in the cylinder 14, and by sending hydraulic pressure to the hydraulic chamber, the piston 16 and the cylinder 14 are
Since these move relative to each other in the axial direction, the rotating arms 10 and 11 rotate in opposite directions about the axes of the pins 15a and 15b, respectively, thereby opening and closing the electrode tips 8 and 9.
固定ベース1の端部には、第2図、第3図の如
く単一の駆動装置である駆動シリンダ17の一端
が支持ブラケツト18に揺動可能に枢支されてい
る。該駆動シリンダ17内には軸方向に滑動自在
にピストン(図示せず)が組込まれ、該ピストン
と一体的に固着されたピストンロツド19の先端
部は連結杆20、ピン21を介して保持台7にそ
の旋回中心より偏倚した位置に枢着されている。 At the end of the fixed base 1, as shown in FIGS. 2 and 3, one end of a drive cylinder 17, which is a single drive device, is swingably supported on a support bracket 18. A piston (not shown) is built into the drive cylinder 17 so as to be able to slide freely in the axial direction, and the tip of the piston rod 19, which is integrally fixed to the piston, is connected to the holding base 7 via a connecting rod 20 and a pin 21. It is pivoted at a position offset from the center of rotation.
また固定ベース1には、前記駆動シリンダ17
の作動時に保持台7の旋回動を拘束するガイド部
材22が固定されている。そして該ガイド部材2
2には前記パイロツトバー5に平行な直線状で一
端開口の長溝22aが形成され、該長溝22aに
は保持台7に軸支されたローラ23が摺接せしめ
られている。また前記可動台2には拘束リンク2
4がその後端をピン25により枢支されており、
前端には爪部24a(第3図)が形成され、その
略中央には、保持台7に固設されたカム部材26
と接触作用するローラ27が軸支されている。 The fixed base 1 also includes the drive cylinder 17.
A guide member 22 is fixed to restrain the pivoting movement of the holding base 7 during operation. and the guide member 2
2 is formed with a linear long groove 22a parallel to the pilot bar 5 and open at one end, and a roller 23 pivotally supported by the holding table 7 is brought into sliding contact with the long groove 22a. In addition, the movable base 2 has a restraint link 2.
4 is pivotally supported at its rear end by a pin 25,
A claw portion 24a (FIG. 3) is formed at the front end, and a cam member 26 fixed to the holding base 7 is provided approximately at the center of the claw portion 24a (FIG. 3).
A roller 27 that comes into contact with is pivotally supported.
一方、可動台2にはスプリング保持台28が固
着され、該保持台28にはスプリング29によつ
て付勢された押圧子30が装着されており、該押
圧子30の先端面が前記スプリング29の付勢力
を受けつつ拘束リンク24の端面を押圧している
ため、前記ローラ27はカム部材26のカム面に
当接する方向に付勢力を受けている。 On the other hand, a spring holding stand 28 is fixed to the movable stand 2, and a presser 30 biased by a spring 29 is attached to the holding stand 28. Since the end face of the restraining link 24 is pressed while receiving the biasing force, the roller 27 receives a biasing force in the direction of contacting the cam surface of the cam member 26.
第3図の如く可動台2上にはストツパ31が固
着されており、第5図の如くに保持台7が旋回作
動したときに該保持台7の突片7aが前記ストツ
パ31に当接することによつて保持台7の旋回動
が規制される。またベース1上の一端部に固定さ
れている支持体3には係合ブロツク32が固定さ
れ、このブロツク32の端部には爪部32a(第
3図)が形成されて第5図のように保持台7が作
動したときに既述の爪部24aと係合する。 As shown in FIG. 3, a stopper 31 is fixed on the movable table 2, and when the holding table 7 rotates as shown in FIG. The pivoting movement of the holding table 7 is restricted by this. Further, an engagement block 32 is fixed to the support 3 fixed to one end of the base 1, and a claw portion 32a (Fig. 3) is formed at the end of the block 32 as shown in Fig. 5. When the holding base 7 is activated, it engages with the previously described claw portion 24a.
以上の如き構成において、第2図、第3図に示
す“原位置状態”より溶接すべく、駆動シリンダ
17内に油圧を送つてピストンロツド19をc方
向(第2図)に移動せしめると、保持台7の旋回
動がローラ23とガイド部材22の長溝22aと
の係合により拘束されているため、保持台7を介
して伝達されるピストンロツド19の牽引力によ
つて可動台2はa方向(第2図)に直線移動す
る。 In the above configuration, in order to weld from the "in-place state" shown in FIGS. 2 and 3, when hydraulic pressure is sent into the drive cylinder 17 to move the piston rod 19 in the direction c (FIG. 2), the piston rod 19 is held. Since the turning movement of the table 7 is restrained by the engagement between the roller 23 and the long groove 22a of the guide member 22, the movable table 2 is moved in the a direction (the direction a) by the traction force of the piston rod 19 transmitted via the holding table 7. Move in a straight line to Figure 2).
そして、第1図に示す溶接物Wの直線部分lの
第1溶接個所P1を図示していないリミツトスイツ
チで検出した状態で駆動装置17を停止させ、溶
接ガン12を第1溶接個所P1に位置決めする。こ
の位置にて、加圧シリンダ(第4図)内への油圧
によつて作動する回動アーム10,11が閉作動
し、電極チツプ8,9が相接近して溶接物Wを挟
圧し所定時間通電することによりP1点にスポツト
溶接を行なう。そして該個所の溶接が完了すると
電極チツプ8,9が互いに離れる方向に解放され
る。次いで可動台2の直線移動に伴い第2溶接個
所P2が同様に検出され溶接される。 Then, the drive device 17 is stopped while the first welding point P1 of the straight line portion l of the workpiece W shown in FIG. 1 is detected by a limit switch not shown, and the welding gun 12 is moved to the first welding point P1. Position. At this position, the rotating arms 10 and 11 operated by the hydraulic pressure in the pressure cylinder (Fig. 4) are operated to close, and the electrode tips 8 and 9 approach each other to pinch the workpiece W to a predetermined position. Spot welding is performed at point P by applying current for a certain period of time. When welding at that location is completed, the electrode tips 8 and 9 are released in a direction that separates them from each other. Next, as the movable table 2 moves linearly, the second welding point P2 is similarly detected and welded.
そして再び駆動装置17が作動しピストンロツ
ド19がc方向に動くと、可動台2がさらにa方
向に動き、第5図の如き動きの終端に達する。こ
の終端に達すると同時にローラ23がガイド部材
22の長溝22aから外れ、保持第7はなおもピ
ストンロツド19からの力を受けるため該保持台
7は第3図において反時計方向に旋回し始める。 When the drive device 17 operates again and the piston rod 19 moves in the direction c, the movable base 2 further moves in the direction a, reaching the end of the movement as shown in FIG. As soon as this end is reached, the roller 23 is disengaged from the long groove 22a of the guide member 22, and the holder 7 is still subjected to the force from the piston rod 19, so that the holder 7 begins to pivot counterclockwise in FIG.
この保持台7の旋回により、溶接物Wの円弧部
分rの第3溶接個所P3、第4溶接個所P4が前記直
線部分lの第1、第2溶接個所P1,P2と同様に検
出され溶接される。 Due to this rotation of the holding table 7, the third welding point P 3 and the fourth welding point P 4 of the circular arc portion r of the workpiece W are moved in the same manner as the first and second welding points P 1 and P 2 of the straight line portion l. Detected and welded.
保持台7が旋回終了時に達すると拘束リンク2
4上のローラ27が保持台7のカム部材26のカ
ム面から外れ、スプリング29の付勢力により爪
部24aが係合ブロツク32の爪部32aに係合
して可動台2の移動が拘束され(第5図の状
態)、同時に保持台7の突片7aがストツパ31
に当接して旋回動が拘束され、この旋回端で第4
溶接個所P4が溶接される。 When the holding base 7 reaches the end of rotation, the restraint link 2
The roller 27 on the movable base 2 is disengaged from the cam surface of the cam member 26 of the holding base 7, and the claw portion 24a engages with the claw portion 32a of the engagement block 32 due to the biasing force of the spring 29, and the movement of the movable base 2 is restrained. (the state shown in FIG. 5), and at the same time, the protrusion 7a of the holding base 7 is pressed against the stopper 31.
The turning movement is restrained by contacting the
Welding point P 4 is welded.
このように溶接物Wの直線部分l及び円弧部分
rに沿つて保持台7上の溶接ガン12が移動する
際にP1〜P4の溶接個所の溶接がなされる。そして
駆動装置17の逆作動により、保持台7が第5図
の状態から時計方向に旋回し、その旋回終了時に
カム部材26が拘束リンク24上のローラ27と
当接し、そのカム作用により拘束リンク24がピ
ン25の軸心回りに揺動するため両爪部24a,
32aの係合が外れる。この係合解除によつて稼
動台2はb方向(第2図)へ移動できる状態とな
り、従つて保持台7の旋回が阻止された後はピス
トンロツド19の押圧作用により可動台2が保持
台7と一体にb方向に直線移動して前記“原位置
状態”に復帰する。 In this manner, when the welding gun 12 on the holding table 7 moves along the straight line portion l and the circular arc portion r of the workpiece W, welding is performed at the welding points P 1 to P 4 . Then, by the reverse operation of the drive device 17, the holding base 7 turns clockwise from the state shown in FIG. 24 swings around the axis of the pin 25, both claws 24a,
32a is disengaged. By this disengagement, the movable base 2 becomes in a state where it can move in direction b (FIG. 2), and after the rotation of the holding base 7 is prevented, the movable base 2 is moved to the holding base 7 by the pressing action of the piston rod 19. It then moves linearly in the b direction together with the above-mentioned "original position state".
このように本考案は、固定ベース上に直線運動
自在に支持された可動台と、該可動台上に旋回可
能に支持され一対の電極チツプを有する溶接ガン
を保持した保持台と、該保持台に連結した単一の
駆動装置と、前記固定ベースに設置され前記駆動
装置の往動時に前記保持台の旋回動を拘束して該
保持台と一体的に前記可動台を一定距離だけ直線
運動させかつ可動台の摺動端で前記保持台の旋回
動を許容するガイド部材と、前記駆動装置の復動
時に前記可動台の直線運動を拘束しかつ前記保持
台の旋回端で前記可動台の拘束を解除する拘束リ
ンクとによつて構成したものであるから、従来の
2個の駆動装置からなる溶接装置に比べ、簡素
化、小型化できるという効果がある。 In this way, the present invention comprises: a movable table supported on a fixed base for linear movement; a holding table rotatably supported on the movable table and holding a welding gun having a pair of electrode tips; a single drive device connected to the fixed base; and a single drive device installed on the fixed base, which restrains the rotational movement of the holding stand when the drive device moves forward, and allows the movable stand to linearly move a certain distance integrally with the holding stand. and a guide member that allows rotation of the holding base at the sliding end of the movable base, and a guide member that restrains the linear movement of the movable base when the drive unit moves back, and restrains the movable base at the rotating end of the holding base. Since the welding device is constructed by a restraint link that releases the welding device, it has the effect of being simpler and smaller than a conventional welding device consisting of two drive devices.
第1図は本考案装置に係る溶接物Wの溶接説明
図、第2図は本考案装置の正面図、第3図は第2
図の−線矢視断面図、第4図は第2図の−
線矢視拡大断面図、第5図は作動状態説明図で
ある。
1……固定ベース、2……可動台、7……保持
台、12……溶接ガン、17……駆動装置、22
……ガイド部材、24……拘束リンク。
Fig. 1 is an explanatory diagram of welding a workpiece W according to the device of the present invention, Fig. 2 is a front view of the device of the present invention, and Fig. 3 is a
A sectional view taken along the - line in the figure, Fig. 4 is a - of Fig. 2.
FIG. 5 is an enlarged sectional view taken along the line and is an explanatory diagram of the operating state. DESCRIPTION OF SYMBOLS 1... Fixed base, 2... Movable stand, 7... Holding stand, 12... Welding gun, 17... Drive device, 22
...Guide member, 24...Restriction link.
Claims (1)
台と、該可動台上に旋回可能に支持され一対の電
極チツプを有する溶接ガンを保持した保持台と、
該保持台に連結した単一の駆動装置と、前記固定
ベースに設置され前記駆動装置の往動時に前記保
持台の旋回動を拘束して該保持台と一体的に前記
可動台を一定距離だけ直線運動させかつ可動台の
摺動端で前記保持台の拘束を解除するガイド部材
と、前記駆動装置の復動時に前記可動台の直線運
動を拘束しかつ前記保持台の旋回端で前記可動台
の拘束を解除する拘束リンクとから成ることを特
徴とする溶接装置。 a movable base supported on a fixed base for linear movement; a holding base rotatably supported on the movable base and holding a welding gun having a pair of electrode tips;
a single drive device connected to the holding base; and a single drive unit installed on the fixed base, which restrains the rotational movement of the holding base when the drive unit moves forward, and moves the movable base integrally with the holding base by a certain distance. a guide member that causes the movable base to move linearly and releases the restraint of the holding base at the sliding end of the movable base; and a guide member that restrains the linear motion of the movable base when the drive unit moves back and at the turning end of the retaining base; A welding device comprising: a restraint link for releasing the restraint of the welding device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14407082U JPS5949481U (en) | 1982-09-22 | 1982-09-22 | welding equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14407082U JPS5949481U (en) | 1982-09-22 | 1982-09-22 | welding equipment |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5949481U JPS5949481U (en) | 1984-04-02 |
JPS6217174Y2 true JPS6217174Y2 (en) | 1987-04-30 |
Family
ID=30321386
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14407082U Granted JPS5949481U (en) | 1982-09-22 | 1982-09-22 | welding equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5949481U (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5381961B2 (en) * | 2010-11-10 | 2014-01-08 | 株式会社豊田中央研究所 | Seam welding apparatus and seam welding method |
-
1982
- 1982-09-22 JP JP14407082U patent/JPS5949481U/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5949481U (en) | 1984-04-02 |
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