JPH10167056A - Manufacturing method for structural body by hollow shape - Google Patents
Manufacturing method for structural body by hollow shapeInfo
- Publication number
- JPH10167056A JPH10167056A JP33659196A JP33659196A JPH10167056A JP H10167056 A JPH10167056 A JP H10167056A JP 33659196 A JP33659196 A JP 33659196A JP 33659196 A JP33659196 A JP 33659196A JP H10167056 A JPH10167056 A JP H10167056A
- Authority
- JP
- Japan
- Prior art keywords
- welding
- projection
- nozzle
- welding machine
- shapes
- 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.)
- Pending
Links
Landscapes
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、中空形材による構
体の製作方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a structure using a hollow profile.
【0002】[0002]
【従来の技術】鉄道車両の構体は、大きく分けて側・屋
根・妻・台枠より構成されており、一部のアルミ製車両
の構体の台枠に大形の中空形材が使用されている。この
中空形材の溶接は車両メーカーによっては自動化されて
いるが、溶接結合部の位置決めや、自動溶接機のセンサ
ー探照の位置決めに無駄な工数がかかっていた。2. Description of the Related Art The structure of a railway vehicle is roughly divided into a side, a roof, a wife, and an underframe. A large hollow profile is used for the underframe of some aluminum vehicle structures. I have. Welding of this hollow profile is automated by some vehicle manufacturers, but it takes time and effort to position the weld joint and to locate the sensor search of the automatic welding machine.
【0003】[0003]
【発明が解決しようとする課題】従来技術の方法は、先
ず、治具に形材を並設し固定する。その溶接箇所の位置
に溶接機のノズルを動かし、また、上下方向についても
調整が必要であるというものであり、この作業前の準備
作業の低減が望まれている。According to the prior art method, first, a profile is juxtaposed and fixed to a jig. It is necessary to move the nozzle of the welding machine to the position of the welding point, and also to make adjustments in the vertical direction, and it is desired to reduce the preparation work before this work.
【0004】本発明の目的は、比較的簡単に大形中空形
材同士の溶接結合部の位置決めを可能とし、自動溶接化
の容易化を図れる方法を提供することである。SUMMARY OF THE INVENTION An object of the present invention is to provide a method capable of relatively easily positioning a welded joint between large hollow members and facilitating automatic welding.
【0005】[0005]
【課題を解決するための手段】従来技術の課題を解決す
るために、大形中空形材の溶接部となる箇所の付近に突
起を設けた形材を用い、この突起を探照するセンサーを
有する自動溶接機により調整を自動化することにより、
溶接前の準備作業を比較的簡単に行うことができ、精度
の向上も見込める。SUMMARY OF THE INVENTION In order to solve the problems of the prior art, a sensor having a projection provided near a portion to be welded to a large hollow profile is used. By automating the adjustment with an automatic welding machine having
Preparation work before welding can be performed relatively easily, and improvement in accuracy can be expected.
【0006】[0006]
【発明の実施の形態】図1〜5を用いて本発明の詳細な
説明をする。DETAILED DESCRIPTION OF THE INVENTION The present invention will be described in detail with reference to FIGS.
【0007】図1は、構体を構成している大形中空形材
の接合部(溶接箇所)付近の断面図を示すものであり、
形材1と2の接合部である溶接箇所近傍に突起3を有し
ている。また、形材と形材間の溶接箇所は車体の長手方
向に伸びている。この様な構造を有する形材の溶接箇所
において自動溶接を行う場合について以下説明をする。FIG. 1 is a cross-sectional view showing the vicinity of a joint (welding point) of a large hollow material constituting a structure.
A projection 3 is provided in the vicinity of a welding portion, which is a joint between the profiles 1 and 2. Further, the welded portion between the shaped members extends in the longitudinal direction of the vehicle body. A case where automatic welding is performed at a welding position of a profile having such a structure will be described below.
【0008】一般に鉄道車両構体は、側・屋根・台枠・
妻構体の4つのブロックに分けられる。この内、図2に
示すように、鉄道車両構体の側10・屋根20・台枠3
0の3ブロックを大形中空形材にて構成する場合、従来
通りそれぞれのブロックごとに溶接組立し、最後に各ブ
ロック同士を組立てることになる。この各ブロックの溶
接組立は、先ず治具に形材を並設し固定する。その際、
溶接線が溶接機のノズルと垂直になるようにする。その
次にセンサーにより、溶接箇所近傍の突起を探照させ、
ノズルの位置および溶接部よりの高さを合わせる。これ
らは予めすべての溶接箇所と突起の距離を一定になるよ
うに形材に突起を設け、この距離および突起とノズル先
端までの高さ方向の距離を自動溶接機にインップトして
おくことにより決定する。この様にして位置決めした
後、自動溶接機を車体長手方向に走らせて溶接を行う。
溶接を行わない部位については、予めその部位の突起を
取り除いておき、また、自動溶接機には突起を探照出来
ない部位については溶接を行わないようプログラムを組
んでおけば良い。[0008] In general, a railway vehicle structure has side, roof, underframe,
It is divided into four blocks of the wife structure. 2, the side 10, the roof 20, and the underframe 3 of the railway vehicle structure, as shown in FIG.
When the three blocks 0 are made of a large hollow material, they are welded and assembled for each block as before, and finally each block is assembled. In the welding assembly of each block, first, the members are arranged side by side on a jig and fixed. that time,
Ensure that the weld line is perpendicular to the welder nozzle. Next, the sensor is used to search for protrusions near the weld,
Adjust the nozzle position and height above the weld. These are determined by providing a projection on the profile in advance so that the distance between all the welding points and the projections is constant, and inputting this distance and the distance in the height direction from the projection to the nozzle tip into the automatic welding machine. I do. After positioning in this manner, welding is performed by running the automatic welding machine in the longitudinal direction of the vehicle body.
For a part where welding is not to be performed, the projection of the part is removed in advance, and a program should be set up in the automatic welding machine so that welding is not performed for a part where the projection cannot be detected.
【0009】以上述べた方法は、台枠のような全ての溶
接線の高さ方向の位置が水平となり、常に溶接機のノズ
ルが溶接線に対し垂直となる場合には問題ないが、側構
体や屋根構体の様に曲線を有する構体については、溶接
機のノズルが溶接線と垂直にならない可能性がある。The above-mentioned method has no problem when the position in the height direction of all the welding lines such as the underframe is horizontal and the nozzle of the welding machine is always perpendicular to the welding line. For structures having curved lines, such as roofs and roof structures, the nozzle of the welder may not be perpendicular to the weld line.
【0010】その垂直度を出すための一例を図3〜4に
示す。図3は屋根ブロック20を治具に固定した状態を
示し、図4は接合部22の拡大図である。図3に示すよ
うに、屋根ブロックは断面が曲線形状であるため接合部
21、22を溶接する際は溶接機のノズルNを傾ける必
要がある。そこで、この傾きをも自動化するため、図4
に示すように接合部近傍の両側に突起23,24を設け
る。前述同様この突起を探照させ、ノズルNの位置を決
めるためには、ノズルNは図4に示すように傾けること
が出来る構造を持ち、また、突起23と突起24の結ぶ
線分に対し垂直となるようにプログラムしておけば良
い。この方法によれば、曲線を有する側構体や屋根構体
についても自動溶接が可能となる。なお、自動溶接機が
探照するための突起は外観上切除しなければならない。
そこで、図5に示すように溶接ビードWに覆われる位置
に突起25,26を設ければ、溶接後のグラインダー仕
上げの際同時に突起も削られることになり、接合部より
離れた位置に突起を設けるよりも有利である。An example for obtaining the verticality is shown in FIGS. FIG. 3 shows a state in which the roof block 20 is fixed to a jig, and FIG. 4 is an enlarged view of the joint 22. As shown in FIG. 3, since the roof block has a curved cross section, it is necessary to incline the nozzle N of the welding machine when welding the joints 21 and 22. In order to automate this inclination, FIG.
As shown in (1), projections 23 and 24 are provided on both sides near the joint. As described above, in order to detect the projection and determine the position of the nozzle N, the nozzle N has a structure that can be tilted as shown in FIG. 4, and is perpendicular to the line connecting the projection 23 and the projection 24. It is good to program so that it becomes. According to this method, automatic welding can be performed on a side structure or a roof structure having a curve. In addition, the projection for the automatic welding machine to search must be cut off in appearance.
Therefore, if the projections 25 and 26 are provided at positions covered by the welding beads W as shown in FIG. 5, the projections are also cut at the same time as finishing the grinder after welding. It is more advantageous than providing.
【0011】[0011]
【発明の効果】以上説明したように本発明によれば、大
形中空形材により構成される鉄道車両構体の側・屋根・
台枠の溶接部となる箇所の近傍に、自動溶接機が探照す
るための突起を設けることにより、溶接作業前の位置決
め等の準備作業が簡単に行えるようになる。As described above, according to the present invention, the side, roof, and roof of a railway vehicle structure constituted by large hollow members are used.
By providing a projection near the welded portion of the underframe for the automatic welding machine to search, it is possible to easily perform a preparation operation such as positioning before the welding operation.
【図1】構体を構成している大形中空形材の接合部付近
の断面図である。FIG. 1 is a cross-sectional view of the vicinity of a joint portion of a large hollow member constituting a structure.
【図2】大形中空形材による構体の構成を示す図であ
る。FIG. 2 is a diagram showing a configuration of a structure made of a large hollow member.
【図3】屋根構体20を治具に固定した状態を示す図で
ある。FIG. 3 is a diagram showing a state where the roof structure 20 is fixed to a jig.
【図4】溶接部22の拡大図である。FIG. 4 is an enlarged view of a welding portion 22.
【図5】溶接部他の一例である。FIG. 5 is another example of a welded portion.
【符号の説明】 1,2…形材、3…突起、10…側構体、20…屋根構
体、30…台枠、21,22…接合部(溶接部)、23
〜26…突起。[Description of Signs] 1,2: Shaped material, 3: Projection, 10: Side structure, 20: Roof structure, 30: Underframe, 21, 22, ... Joint (weld), 23
26 to protrusions.
フロントページの続き (72)発明者 奥野 澄生 山口県下松市大字東豊井794番地 株式会 社日立製作所笠戸工場内Continued on the front page (72) Inventor Sumio Okuno 794, Higashi-Toyoi, Kazamatsu City, Yamaguchi Prefecture Inside the Kasado Plant of Hitachi, Ltd.
Claims (2)
設し、長手方向に溶接により結合して構体を製作する構
造において、該構体溶接結合部近傍に自動溶接機のセン
サーが探照するための突起を設けたことを特徴とする構
体の製作方法。1. A structure in which large hollow sections are juxtaposed along the longitudinal direction of a vehicle body and joined by welding in the longitudinal direction to produce a structure. A method of manufacturing a structure, comprising a projection for searching.
めの突起は、予め中空形材の一部の形状として組み込ん
でおくことを特徴とする請求項1記載の構体の製作方
法。2. A method according to claim 1, wherein said projection for detecting by a sensor of said automatic welding machine is incorporated in advance as a part of a hollow member.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP33659196A JPH10167056A (en) | 1996-12-17 | 1996-12-17 | Manufacturing method for structural body by hollow shape |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP33659196A JPH10167056A (en) | 1996-12-17 | 1996-12-17 | Manufacturing method for structural body by hollow shape |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH10167056A true JPH10167056A (en) | 1998-06-23 |
Family
ID=18300742
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP33659196A Pending JPH10167056A (en) | 1996-12-17 | 1996-12-17 | Manufacturing method for structural body by hollow shape |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH10167056A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005329412A (en) * | 2004-05-18 | 2005-12-02 | Kawasaki Heavy Ind Ltd | Laser welding method, laser weld joint, outer plate panel, and rolling stock body structure |
KR100792721B1 (en) | 2006-03-28 | 2008-01-11 | 가부시끼가이샤 히다치 세이사꾸쇼 | Rail vehicle, manufacturing method thereof, and hollow member in use therefor |
US8124908B2 (en) | 2004-05-18 | 2012-02-28 | Kawasaki Jukogyo Kabushiki Kaisha | Laser welding method, laser-welded joint, outside sheathing panel, and body structure for rolling stock |
-
1996
- 1996-12-17 JP JP33659196A patent/JPH10167056A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005329412A (en) * | 2004-05-18 | 2005-12-02 | Kawasaki Heavy Ind Ltd | Laser welding method, laser weld joint, outer plate panel, and rolling stock body structure |
US8124908B2 (en) | 2004-05-18 | 2012-02-28 | Kawasaki Jukogyo Kabushiki Kaisha | Laser welding method, laser-welded joint, outside sheathing panel, and body structure for rolling stock |
US8530782B2 (en) | 2004-05-18 | 2013-09-10 | Kawasaki Jukogyo Kabushiki Kaisha | Laser welding method, laser-welded joint, outside sheathing panel, and body structure for rolling stock |
KR100792721B1 (en) | 2006-03-28 | 2008-01-11 | 가부시끼가이샤 히다치 세이사꾸쇼 | Rail vehicle, manufacturing method thereof, and hollow member in use therefor |
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