JPH0415431Y2

JPH0415431Y2 -

Info

Publication number: JPH0415431Y2
Application number: JP14097887U
Authority: JP
Priority date: 1987-09-17
Filing date: 1987-09-17
Publication date: 1992-04-07
Also published as: JPS6449394U

Description

【考案の詳細な説明】（産業上の利用分野）本考案は、仮付溶接された二輪車車体を本溶接
する際に使用する溶接用治具装置に関する。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a welding jig device used when performing main welding of a two-wheeled vehicle body that has been tack welded.

（従来の技術）本願出願人は、先にこの種装置として、水平軸
線を中心とする円環状又は円弧状のガイドレール
に、二輪車車体の適宜複数箇所を把持する複数の
把持部材を取付けた車長方向に長手の治具を、該
治具の長手方向が該ガイドレールの直径方向に沿
うような姿勢で該ガイドレールの水平軸線回りに
公転自在に支持させ、該治具の公転で二輪車車体
を水平姿勢や倒立姿勢に姿勢変化させつ車体各部
の溶接を行なうようにしたものを提案したが、こ
のものでは治具をその長手方向両端部に取付けた
ホルダにおいてガイドレールに支持させ、一端の
ホルダにガイドレールに沿わせて設けたラツクに
咬合する出力軸上のピニオンを有する駆動モータ
を搭載し、該モータの作動で治具を公転させるよ
うにしている。(Prior Art) The applicant of the present application has previously developed a device of this type for a vehicle in which a plurality of gripping members for gripping multiple locations on a two-wheeled vehicle body are attached to an annular or arc-shaped guide rail centered on a horizontal axis. A longitudinally elongated jig is supported such that it can freely revolve around the horizontal axis of the guide rail in a posture such that the longitudinal direction of the jig is along the diameter direction of the guide rail, and the revolution of the jig causes the two-wheeled vehicle body to move. We have proposed a method in which various parts of the car body are welded while changing the position of the jig to a horizontal position or an inverted position.In this method, the jig is supported by a guide rail in a holder attached to both longitudinal ends of the jig, and one end of the jig is supported by a guide rail. A drive motor having a pinion on an output shaft that engages with a rack provided along a guide rail is mounted on the holder, and the jig is caused to revolve by the operation of the motor.

（考案が解決しようとする問題点）上記のものでは、駆動モータの作動で治具の一
端側が公転方向に押されたとき、治具の他端側が
つんのめる様な状態になり易く、治具が円滑に公
転しないことがある。(Problem to be solved by the invention) In the above device, when one end of the jig is pushed in the direction of revolution by the operation of the drive motor, the other end of the jig tends to be stuck, and the jig is It may not rotate smoothly.

本考案は、かかる問題点を解決した装置を提供
することをその目的とする。 An object of the present invention is to provide a device that solves these problems.

（問題点を解決するための手段）本考案は、上記目的を達成すべく、水平軸線を
中心とする円環状又は円弧状のガイドレールに、
二輪車車体の適宜複数箇所を把持する複数の把持
部材を取付けた車長方向に長手の治具を、該治具
の長手方向が該ガイドレールの直径方向に沿うよ
うな姿勢で該ガイドレールの水平軸線回りに公転
自在に支持させるものにおいて、該ガイドレール
に沿つて回動自在な円弧状の可動枠を設け、該可
動枠の両端に取付けたホルダに該治具の長手方向
両端部を支持させると共に、該可動枠の略中央に
該ガイドレールに沿わせて設けたラツクに咬合す
る出力軸上のピニオンを有する駆動モータを搭載
したことを特徴とする。(Means for Solving the Problems) In order to achieve the above object, the present invention provides an annular or arcuate guide rail centered on a horizontal axis.
A jig that is longitudinally extending in the vehicle length direction and has a plurality of gripping members that grip multiple locations on the two-wheeled vehicle body is held horizontally on the guide rail in a posture such that the longitudinal direction of the jig is along the diameter direction of the guide rail. In a device that is supported so that it can freely revolve around an axis, an arc-shaped movable frame that can freely rotate along the guide rail is provided, and both longitudinal ends of the jig are supported by holders attached to both ends of the movable frame. Additionally, a drive motor having a pinion on an output shaft that engages with a rack provided along the guide rail is mounted approximately in the center of the movable frame.

（作用）可動枠をガイドレールに沿つて回動させると、
該可動枠の両端のホルダ間に架設される治具がガ
イドレールの水平軸線回りに公転し、該治具に把
持される二輪車車体の姿勢が変化する。(Function) When the movable frame is rotated along the guide rail,
A jig installed between holders at both ends of the movable frame revolves around the horizontal axis of the guide rail, and the posture of the two-wheeled vehicle body gripped by the jig changes.

ここで、可動枠は、その中央部に搭載した駆動
モータの出力軸上のピニオンの回転によりガイド
レールに沿つて回動されるもので、回動方向の推
力が該可動枠の中央部にバランス良く作用し、該
可動枠の回動、従つて治具の公転が円滑に行なわ
れる。 Here, the movable frame is rotated along the guide rail by the rotation of a pinion on the output shaft of a drive motor mounted in the center of the movable frame, and the thrust in the rotation direction is balanced by the center of the movable frame. It works well, and the rotation of the movable frame and therefore the revolution of the jig are performed smoothly.

（実施例）図面は、第９図に示す如く、ヘツドパイプWa
と各種クロスメンバWbとから成るセンターメン
バと、メインアツパフレームWcとリヤアツパフ
レームWdとダウンチユーブWeとリヤステーWf
とブラケツトWg等のサイドフレームメンバから
成る左右のサイドフレームとを溶接して二輪車車
体Ｗを組立てるようにした実施例を示し、組立ラ
インに、第１図及び第２図に示す如く、前方に向
つて順にセツトステーシヨン１、結合ステーシヨ
ン２、本溶接ステーシヨン３を配置し、該組立ラ
インに沿つて敷設した軌道４上のレール４ａ，４
ａに台車５を載架し、該台車５に該レール４ａ，
４ａ間の固定ラツク４ｂに咬合するピニオン５ａ
と、該ピニオン５ａをベベルギア５ｂを介して駆
動するモータ５ｃとを取付けて、該台車５を該モ
ータ５ｃによりセツトステーシヨン１から結合ス
テーシヨン２を経て本溶接ステーシヨン３に移動
自在とし、該台車５上に各種センターメンバを位
置決め保持する保持部材６ａの複数個を取付けた
セツト治具６を搭載した。(Example) As shown in Fig. 9, the drawing shows the head pipe Wa
and various cross members Wb, a main atsupa frame Wc, a rear atsupa frame Wd, a down tube We, and a rear stay Wf.
An embodiment is shown in which a motorcycle body W is assembled by welding left and right side frames consisting of side frame members such as a bracket Wg and the like. The set station 1, the joining station 2, and the main welding station 3 are arranged in this order, and the rails 4a and 4 are placed on the track 4 laid along the assembly line.
A trolley 5 is mounted on the trolley 5, and the rails 4a,
Pinion 5a engages with fixing rack 4b between 4a.
and a motor 5c that drives the pinion 5a via a bevel gear 5b, so that the trolley 5 can be freely moved from the set station 1 to the main welding station 3 via the coupling station 2 by the motor 5c. A setting jig 6 is mounted on which a plurality of holding members 6a for positioning and holding various center members are attached.

又、結合ステーシヨン２の左右各側に、第３図
に示す如く、スライドベース７上のレール７ａ，
７ａに沿つてシフトシリンダ８ａにより横方向に
進退されるスライド台８を設けて、該スライド台
８上に下端の軸９ａを中心にして起伏自在な治具
ホルダ９を設け、該ホルダ９にサイドフレームを
保持するサイド治具１０を取付けて、該サイド治
具１０を倒伏姿勢で横方向外方のセツト場所２ａ
と内方の溶接場所２ｂとに移動自在とし、該セツ
ト場所２ａで該サイド治具１０上にサイドフレー
ムメンバをセツトした後、該溶接場所２ｂでサイ
ドフレームメンバ同士をその前後に配置した溶接
トーチ１１ａ付きの溶接ロボツト１１，１１によ
り溶接してサイドフレームを組立てるようにし
た。 Furthermore, as shown in FIG. 3, rails 7a,
7a, a slide table 8 is provided which is moved laterally forward and backward by a shift cylinder 8a, and a jig holder 9 is provided on the slide table 8, which can be raised and lowered freely around a shaft 9a at the lower end. Attach the side jig 10 that holds the frame, and set the side jig 10 in a laid down position at the laterally outward setting location 2a.
and an inner welding location 2b, and after setting the side frame member on the side jig 10 at the setting location 2a, the welding torch is arranged to place the side frame members in front and behind each other at the welding location 2b. The side frame is assembled by welding using welding robots 11, 11 equipped with 11a.

そして、セツトステーシヨン１でセツト治具６
にセンターメンバをセツトした後、これを台車５
の移動で結合ステーシヨン２に投入し、次いで両
側のサイド治具１０，１０を起立させて、セツト
治具６に保持されるセンターメンバに該各サイド
治具１０に保持されるサイドフレームを側方から
接合し、この状態で前記溶接ロボツト１１により
各サイド治具１０の枠組み空間を通してセンター
メンバと各サイドフレームとを仮付溶接し、次い
で仮付溶接された車体Ｗを本溶接ステーシヨン３
に配置した治具装置１２に移載して、該ステーシ
ヨン３の左右両側に配置した前後各１対の溶接ト
ーチ１３ａ付きの溶接ロボツト１３，１３により
車体Ｗの本溶接を行なうようにした。 Then, set jig 6 at set station 1.
After setting the center member, move it to trolley 5.
Then, the side jigs 10, 10 on both sides are erected, and the side frame held on each side jigs 10 is moved sideways to the center member held on the setting jig 6. In this state, the center member and each side frame are tack welded by the welding robot 11 through the framework space of each side jig 10, and then the tack welded vehicle body W is transferred to the main welding station 3.
The main welding of the vehicle body W is carried out by welding robots 13, 13 each equipped with a pair of welding torches 13a located at the left and right sides of the station 3.

該治具装置１２は、第４図及び第５図に示す如
く、横方向の水平軸線（以下Ｙ軸と記す）を中心
とする円環状のガイドレール１４を、その周囲を
囲繞する筒状の固定枠１５に複数の支持片１５ａ
を介して取付けると共に、該ガイドレール１４に
沿つて回動自在な円弧状の可動枠１６を設けて、
該可動枠１６の両端に外側方に張出した１対の第
１第２ホルダ１７₁，１７₂を取付け、該両ホルダ
１７₁，１７₂間に、メインアツパレフームWcと
リヤアツパフレームWdとその尾端のテールゲー
トとを把持する複数の把持部材１８ａを取付けた
車長方向に長手の治具１８をその長手方向がガイ
ドレール１４の直径方向に沿うような姿勢で架設
して、該可動枠１６の回動により該治具１８にＹ
軸回りの公転を与えられるようにすると共に、該
治具１８の長手方向両端部を該両ホルダ１７₁，
１７₂に軸支させて、該治具１８にガイドレール
１４の直径方向の軸線（以下Ｘ軸と記す）回りの
自転を与えられるように構成して成るものとし
た。 As shown in FIGS. 4 and 5, the jig device 12 has an annular guide rail 14 centered on a lateral horizontal axis (hereinafter referred to as the Y axis), and a cylindrical guide rail surrounding the guide rail 14. A plurality of support pieces 15a are provided on the fixed frame 15.
At the same time, an arc-shaped movable frame 16 that can be freely rotated along the guide rail 14 is provided.
A pair of first and second holders 17 ₁ and 17 2 extending outward are attached to both ends of the movable frame 16, and a main upper frame Wc and a rear upper frame Wd _are installed between the holders 17 ₁ and 17 ₂ . A longitudinal jig 18 with a plurality of gripping members 18a attached thereto for gripping the tailgate and the tailgate is installed in such a position that its longitudinal direction runs along the diameter direction of the guide rail 14. The rotation of the movable frame 16 causes the jig 18 to
The jig 18 is made to rotate around the axis, and both ends of the jig 18 in the longitudinal direction are connected to the holders 17 ₁ ,
17 ₂ so that the jig 18 can be given rotation about the axis (hereinafter referred to as the X-axis) in the diametrical direction of the guide rail 14.

これを更に詳述するに、可動枠１６の両端部と
中央部との計３箇所の内側面に、第６図に示す如
く、ガイドレール１４の内周側と外周側とに位置
する各１対のブラケツト１６ａ，１６ａを突設し
て、該各ブラケツト１６ａに該ガイドレール１４
の両側面と周面とに当接する複数のローラ１６ｂ
を枢支し、更に該可動枠１６の中央部外側面に、
第７図に示す如く、該ガイドレール１４に沿わせ
て設けたラツク１９に咬合する出力軸上のピニオ
ン２０を有する駆動モータ２１を搭載し、該駆動
モータ２１の作動により該ピニオン２０を介して
該可動枠１６の中央部に回動方向の推力がバラン
ス良く作用されるようにし、かくて該可動枠１６
を介して前記治具１８にＹ軸回りの円滑な公転が
与えられるようにした。 To explain this in more detail, as shown in FIG. A pair of brackets 16a, 16a are provided protrudingly, and the guide rail 14 is attached to each bracket 16a.
A plurality of rollers 16b that come into contact with both side surfaces and the circumferential surface of
furthermore, on the outer surface of the central part of the movable frame 16,
As shown in FIG. 7, a drive motor 21 having a pinion 20 on an output shaft that engages with a rack 19 provided along the guide rail 14 is mounted, and the operation of the drive motor 21 causes the motor to move through the pinion 20. Thrust in the rotating direction is applied to the center of the movable frame 16 in a well-balanced manner, and thus the movable frame 16
The jig 18 is given smooth revolution around the Y-axis through the .

又、前記両ホルダ１７₁，１７₂に、治具１８を
その両端のＸ軸上の軸部１８ｂ，１８ｂにおいて
軸支すると共に、一端の第１ホルダ１７₁に、第
４図及び第８図に示す如く、自転用のモータ２２
と、該モータ２２にギア列２３を介して連結され
るハーモニツクドライブ型の減速機２４とを搭載
して、該減速機２４と治具１８の一端の軸部１８
ｂとをベベルギア２５を介して連結し、かくて該
モータ２２の作動により治具１８にＸ軸回りの自
転を与えられるようにした。 In addition, the jig 18 is pivotally supported on the two holders 17 ₁ and 17 ₂ at shaft portions 18 b and 18 b on the X axis at both ends thereof, and the first holder 17 ₁ at one end is provided with the support shown in FIGS. 4 and 8. As shown in the figure, a motor 22 for rotation
and a harmonic drive type reducer 24 connected to the motor 22 via a gear train 23.
b are connected to each other via a bevel gear 25, so that the jig 18 can be rotated about the X-axis by the operation of the motor 22.

前記セツト治具６は、その下側の治具ベース６
ｂの前端のレバー６ｃに横設した枢軸６ｄにおい
て前記台車５上に起伏自在に支持されて、該レバ
ー部６ｃの先端に連結される該台車５上のシリン
ダ６ｅにより起伏動作されるようにし、該台車５
を本溶接ステーシヨン３側に移動させた状態で該
セツト治具６を起立させると共に、前記治具１８
をこの起立状態のセツト治具６に対向するように
予めＹ軸回りの公転動作で起立させておき、この
状態で該セツト治具６から該治具１８に車体Ｗを
受渡し、次いで該治具１８にＹ軸回りの公転とＸ
軸回りの自転とを与えて、車体Ｗの姿勢を二元的
に可変制御しつつ前記溶接ロボツト１３による本
溶接を行なうよにした。 The setting jig 6 has a jig base 6 below it.
It is supported on the truck 5 so as to be able to rise and fall freely on a pivot shaft 6d installed horizontally on a lever 6c at the front end of the lever part 6c, and is raised and lowered by a cylinder 6e on the truck 5 connected to the tip of the lever part 6c. The trolley 5
While moving the setting jig 6 to the main welding station 3 side, the setting jig 6 is erected, and the jig 18
is raised in advance by revolving motion around the Y axis so as to face the setting jig 6 in the upright state, and in this state, the vehicle body W is delivered from the setting jig 6 to the jig 18, and then the jig 18, revolution around the Y axis and X
The main welding by the welding robot 13 is performed while the attitude of the vehicle body W is dually and variably controlled by giving rotation about the axis.

尚、上記実施例では、ガイドレール１４を円環
状としたが、周方向の一部を切欠いた円弧状に形
成することも可能である。 In the above embodiment, the guide rail 14 has an annular shape, but it can also be formed into an arc shape with a part of the circumference cut out.

（考案の効果）以上の如く本発明によるときは、可動枠の中央
部に搭載した駆動モータの作動により、該可動枠
を介して治具をガイドレールの水平軸線回りに円
滑に公転させることができ、治具の公転方向の位
置精度が高められ、二輪車車体を正確に溶接でき
る効果を有する。(Effect of the invention) As described above, according to the present invention, the jig can be smoothly revolved around the horizontal axis of the guide rail via the movable frame by the operation of the drive motor mounted in the center of the movable frame. This has the effect of increasing the positional accuracy of the jig in the revolving direction and allowing accurate welding of motorcycle bodies.

[Brief explanation of the drawing]

第１図は本案装置を具備する二輪車車体の組立
ラインの側面図、第２図はその平面図、第３図は
第１図の−線から見た結合作業時の結合ステ
ーシヨンの正面図、第４図は第２図の−線か
ら見た車体受渡し時の本溶接ステーシヨンの拡大
側面図、第５図は第４図の左方から見た治具装置
の正面図、第６図乃至第８図は夫々第４図の−
線乃至−線拡大截断面図、第９図は二輪車
車体の斜視図である。Ｗ……二輪車車体、１２……治具装置、１４…
…ガイドレール、１６……可動枠、１７₁，１７₂
……ホルダ、１８……治具、１８ａ……把持部
材、１９……ラツク、２０……ピニオン、２１…
…駆動モータ。 Fig. 1 is a side view of an assembly line for two-wheeled vehicle bodies equipped with the proposed device, Fig. 2 is a plan view thereof, Fig. 3 is a front view of the joining station during the joining operation as seen from the - line in Fig. 1; Figure 4 is an enlarged side view of the main welding station during vehicle body delivery as seen from the - line in Figure 2, Figure 5 is a front view of the jig device seen from the left side of Figure 4, and Figures 6 to 8. The figures are shown in Figure 4-
FIG. 9, which is an enlarged cross-sectional view taken from line to line, is a perspective view of the two-wheeled vehicle body. W...Motorcycle body, 12...Jig device, 14...
...Guide rail, 16...Movable frame, 17 ₁ , 17 ₂
...Holder, 18...Jig, 18a...Gripping member, 19...Rack, 20...Pinion, 21...
...Drive motor.

Claims

[Scope of utility model registration request]

A jig extending in the longitudinal direction of the vehicle is attached to an annular or arc-shaped guide rail centered on a horizontal axis, and a plurality of gripping members for gripping a plurality of appropriate locations on the two-wheeled vehicle body are attached. In a device that supports the guide rail so as to be able to revolve freely around the horizontal axis of the guide rail in a posture along the diameter direction of the guide rail, an arc-shaped movable frame that can freely rotate along the guide rail is provided, and both ends of the movable frame are provided. Both ends of the jig in the longitudinal direction are supported by holders attached to the movable frame, and a drive motor having a pinion on an output shaft that engages with a rack provided along the guide rail is mounted approximately in the center of the movable frame. A jig device for welding a motorcycle body, which is characterized by: