JPH05335165A - Manufacture of electric equipment tank - Google Patents
Manufacture of electric equipment tankInfo
- Publication number
- JPH05335165A JPH05335165A JP16169392A JP16169392A JPH05335165A JP H05335165 A JPH05335165 A JP H05335165A JP 16169392 A JP16169392 A JP 16169392A JP 16169392 A JP16169392 A JP 16169392A JP H05335165 A JPH05335165 A JP H05335165A
- Authority
- JP
- Japan
- Prior art keywords
- bottom plate
- drive shaft
- plate
- tank
- tank body
- 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.)
- Granted
Links
Landscapes
- Transformer Cooling (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、油入変圧器等の電気
機器を収納するタンクを製造する方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a tank for housing electric equipment such as an oil-filled transformer.
【０００２】[0002]
【従来の技術】電気機器を収納するタンク１は、例えば
図１に示すように上端にフランジ２Ａを有するタンク胴
板２とタンク胴板２の下端２Ｂを閉じるように溶接によ
り取り付けた底板３とからなり、タンク１内に電気機器
を収納した後フランジ２Ａに図示しない蓋板が取り付け
られる。この様なタンク１を製造する従来の方法では、
予めタンク胴板２の下端２Ｂ付近に底板位置決め位置を
プレス加工にて形成しておきタンク胴板２の内側に底板
３を配置し位置決め位置に当接させる方法、またはタン
ク胴板２の内側に底板３を配置しタンク胴板２の下端２
Ｂ側に簡易な位置決め金具を添えて上方より位置調整を
し、タンク胴板２と底板３の接合部に数カ所仮付け溶接
にて仮固定する方法等にて底板３の位置決めをした後、
外側より手作業にて本溶接を施してタンク胴板２に底板
３を固定していた。2. Description of the Related Art A tank 1 for accommodating electric equipment includes a tank shell plate 2 having a flange 2A at its upper end and a bottom plate 3 attached by welding so as to close a lower end 2B of the tank shell plate 2 as shown in FIG. A cover plate (not shown) is attached to the flange 2A after the electric device is housed in the tank 1. In the conventional method of manufacturing such a tank 1,
A method for forming a bottom plate positioning position near the lower end 2B of the tank body plate 2 by pressing in advance and disposing the bottom plate 3 inside the tank body plate 2 and abutting the bottom plate 3 at the positioning position, or inside the tank body plate 2 The bottom plate 3 is arranged and the lower end 2 of the tank body plate 2 is arranged.
After positioning the bottom plate 3 by attaching a simple positioning bracket to the B side and adjusting the position from above, and temporarily fixing the joint parts of the tank body plate 2 and the bottom plate 3 at several places by temporary welding,
The bottom plate 3 was fixed to the tank body plate 2 by performing main welding manually from the outside.
【０００３】[0003]
【発明が解決しようとする課題】しかしながらこの様な
方法では、タンク胴板２に底板位置決め位置を形成する
為のプレス加工作業、またはタンク胴板２と底板３を仮
固定するための溶接作業に工数が掛かり、また底板３を
固定する為の本溶接作業を手作業で行っていた為、本溶
接作業に工数が掛かり製造加工費を低減することが出来
なかった。また、タンク胴板２と底板３の位置決めを溶
接により仮固定していた為、本溶接時に仮固定の部分と
その他の部分の溶接条件が異なり、溶接欠陥が生じる事
があった。そこで、この発明は、タンク胴板２への底板
３の取り付けを自動的に且つ能率良く行うことが出来る
ようにしたものである。However, according to such a method, the press working for forming the bottom plate positioning position on the tank body plate 2 or the welding work for temporarily fixing the tank body plate 2 and the bottom plate 3 is performed. Since it takes a lot of man-hours and the main welding work for fixing the bottom plate 3 is performed manually, the man-hours are required for the main welding work and the manufacturing processing cost cannot be reduced. Further, since the positioning of the tank body plate 2 and the bottom plate 3 is temporarily fixed by welding, the welding conditions of the temporarily fixed portion and other portions may be different during the main welding, and a welding defect may occur. Therefore, the present invention enables the bottom plate 3 to be attached to the tank body plate 2 automatically and efficiently.
【０００４】[0004]
【課題を解決するための手段】この発明は、両端が開口
し上端にフランジ２Ａを有するタンク胴板２と、タンク
胴板２の下端２Ｂを閉じるように設けられた底板３とか
らなる電気機器タンクを製造する方法であって、タンク
胴板２を保持する架台４と架台４の面に対し下部より直
角な方向に移動する下部駆動軸５と、下部駆動軸５の先
端に設けられた底板保持金具５Ａと、架台４の面に対し
上部より直角な方向に移動する上部駆動軸６と、上部駆
動軸６の先端に設けられた底板位置決め金具６Ａと、架
台４の面に対し水平方向に移動する横駆動軸７と横駆動
軸７の先端に設けられた可動締め付け治具７Ｂと、可動
締め付け治具７Ｂに相対して設けられた固定締め付け治
具７Ａを備えた位置決め装置と溶接装置を用いる。タン
ク胴板２をフランジ２Ａ面側が下方に向いた状態とし、
底板３をタンク胴板２内側の任意な位置に配置した後架
台４に保持させる。しかる後、上部駆動軸６を上部より
下部に移動させ、底板位置決め金具６Ａをタンク胴板２
の下端２Ｂに当接させ、その後下部駆動軸５を下部より
上部に移動させ底板保持金具５Ａで底板３を押し上げ、
底板位置決め金具６Ａとで挟み付け仮固定する。その後
横駆動軸７をタンク胴板２方向に移動させ、可動締め付
け治具７Ｂと固定締め付け治具７Ａでタンク胴板２と底
板３を締め付け仮固定する。その後、下部駆動軸５、上
部駆動軸６を移動させ底板保持金具５Ａ、底板位置決め
金具６Ａを所定位置に退避させ、次いで溶接装置により
底板３を上方からタンク胴板２に溶接にて固定する。According to the present invention, there is provided an electric device comprising a tank shell plate 2 having both ends open and a flange 2A at the upper end, and a bottom plate 3 provided so as to close a lower end 2B of the tank shell plate 2. A method for manufacturing a tank, comprising: a gantry (4) holding a tank body plate (2), a lower drive shaft (5) moving in a direction perpendicular to the lower surface of the gantry (4), and a bottom plate provided at the tip of the lower drive shaft (5). A holding metal fitting 5A, an upper drive shaft 6 which moves in a direction perpendicular to the surface of the gantry 4, a bottom plate positioning metal fitting 6A provided at the tip of the upper drive shaft 6, and a horizontal direction relative to the surface of the gantry 4. A positioning device and a welding device equipped with a moving horizontal driving shaft 7, a movable tightening jig 7B provided at the tip of the horizontal driving shaft 7, and a fixed tightening jig 7A provided opposite to the movable tightening jig 7B. To use. The tank body plate 2 is in a state in which the flange 2A surface side faces downward,
The bottom plate 3 is placed at an arbitrary position inside the tank body plate 2 and is held by the rear mount 4. After that, the upper drive shaft 6 is moved from the upper part to the lower part, and the bottom plate positioning fitting 6A is attached to the tank body plate 2.
The lower drive shaft 5 from the lower part to the upper part to push up the bottom plate 3 with the bottom plate holding metal fitting 5A,
It is sandwiched with the bottom plate positioning metal fitting 6A and temporarily fixed. After that, the lateral drive shaft 7 is moved in the direction of the tank body plate 2, and the tank body plate 2 and the bottom plate 3 are temporarily fixed by tightening the movable tightening jig 7B and the fixed tightening jig 7A. After that, the lower drive shaft 5 and the upper drive shaft 6 are moved to retract the bottom plate holding metal fittings 5A and the bottom plate positioning metal fittings 6A to predetermined positions, and then the bottom plate 3 is fixed to the tank body plate 2 by welding from above.
【０００５】[0005]
【作用】上記のようにタンク胴板２を架台４に保持して
から、タンク胴板２内側で底板３を底板位置決め部に移
動させ、可動締め付け治具７Ｂと固定締め付け治具７Ａ
で締め付け仮固定するようにすれば、底板３をタンク胴
板２に仮固定する為の仮付け溶接を行うこともなく、底
板３をその上方からタンク胴板２に直接本溶接すること
ができ、工数を削減することが出来る。またタンク胴板
２の位置決めは位置決め装置により自動的に行われるの
で、タンク胴板２に底板３を取り付ける作業の自動化が
可能であり、能率良く行うことが出来る。またタンク胴
板２と底板３を仮付け溶接により行っていた仮固定が不
要となる為、本溶接時の溶接条件がほぼ同一となり、溶
接欠陥を低減する事が出来る。After the tank body plate 2 is held on the mount 4 as described above, the bottom plate 3 is moved to the bottom plate positioning portion inside the tank body plate 2 to move the movable tightening jig 7B and the fixed tightening jig 7A.
If it is tightened and temporarily fixed, the bottom plate 3 can be directly main-welded to the tank body plate 2 directly from above without performing temporary welding for temporarily fixing the bottom plate 3 to the tank body plate 2. The man-hours can be reduced. Further, since the positioning of the tank body plate 2 is automatically performed by the positioning device, the work of attaching the bottom plate 3 to the tank body plate 2 can be automated and can be performed efficiently. Further, since the temporary fixing of the tank body plate 2 and the bottom plate 3 which is performed by the temporary welding is unnecessary, the welding conditions at the time of the main welding are almost the same and the welding defects can be reduced.
【０００６】[0006]
【実施例】以下図２から図４を参照して本発明の実施例
を説明する。図２及び図３は円筒形に形成されたタンク
胴板２に円盤状の底板３を溶接する場合の実施例を示し
たもので、図２はこの発明の方法においてタンク胴板２
を位置決めした状態を示す平面図、図３は図２のＣ−Ｃ
断面図である。この発明の方法で用いる位置決め装置
は、タンク胴板２を載せて保持し得る架台４を備えてい
る。この架台４のほぼ中央にはタンク胴板２の外径より
小さい穴が形成されており、その中央には上下動自在の
下部駆動軸５が配置されている。下部駆動軸５の先端に
は円盤状の底板保持金具５Ａが固定され、底板保持金具
５Ａの外径はタンク胴板２の内径より小さく設定されて
いる。また架台４の上部には支柱４Ａにより保持された
上下動自在の上部駆動軸６が配置されている。上部駆動
軸６の先端には円盤状の底板位置決め金具６Ａが固定さ
れ、底板位置決め金具６Ａはタンク胴板２の内径より小
さい円盤とタンク胴板２の外形より大きい円盤が段差を
持って形成されている。また架台４の支柱４Ａのほぼ中
央横には左右動自在の横駆動軸７が配置されている。横
駆動軸７の先端にはタンク胴板２の外径とほぼ同径で二
分割された可動締め付け治具７Ｂ固定されている。可動
締め付け治具７Ｂと相対する側には同形状の固定締め付
け治具７Ａが配置されている。この実施例では、上記架
台４、下部駆動軸５及び底板保持金具５Ａ、上部駆動軸
６及び底板位置決め金具６Ａ、横駆動軸７及び可動締め
付け治具７Ｂ、固定締め付け治具７Ａとにより位置決め
装置が構成されている。架台４の上方には溶接トーチ８
を備えた図示しない自動溶接装置が配置され、この自動
溶接装置は溶接トーチ８がタンク胴板−底板の接線部２
Ｃに沿って移動しつつ溶接を自動的に行うようになって
いる。また、架台４にタンク胴板２を着脱する際には、
前記溶接トーチ８が所定位置まで退避し得るようになっ
ている。本実施例では、先ず円筒形に成形加工されたタ
ンク胴板２をフランジ２Ａ面が下方をに向いた状態とし
た後、タンク胴板２内側の任意な位置に底板３を配置す
る。その後タンク胴板２を図示しない搬送装置により架
台４の位置まで搬送し架台４の上に置き、固定締め付け
治具７Ａにタンク胴板２の外側を当接させる。その後上
部駆動軸６を下方に移動させてタンク胴板２の下端２Ｂ
に底板位置決め金具６Ａを当接させる。この場合底板位
置決め金具６Ａのタンク胴板２の外径より大きい円盤部
分がタンク胴板の下端２Ｂに当接し、タンク胴板２の内
径より小さい円盤部分はタンク胴板２の内側に入る。こ
の内側に入った段差部分の厚さがタンク胴板２下端２Ｂ
より底板３までの位置決め寸法となる。次いで下部駆動
軸５を上方に移動させる。この時下部駆動軸５の先端に
固定されている底板保持金具５Ａが、タンク胴板２内側
の任意な位置に配置されていた底板３を押し上げ、底板
位置決め金具６Ａの小さい円盤部分に底板３が当接し、
底板３の位置が決まる。次いで横駆動軸７をタンク胴板
２方向に移動し、固定締め付け治具７Ａと可動締め付け
治具７Ｂとでタンク胴板２を締め付け底板３を仮固定す
る。この場合可動締め付け治具７Ｂはタンク胴板２方向
に向かって移動しタンク胴板２に当接して停止するの
で、タンク胴板２は自動溶接装置に対して常に一定の位
置関係をもって自動的に位置決めされる。次いで仮固定
後、下部駆動軸５、上部駆動軸６を移動させ底板保持な
金具５Ａ及び底板位置決め金具６Ａを所定位置まで退避
させる。次いで自動溶接装置の溶接トーチ８を上方から
底板３と底板位置決め部との接合部に指向させ、タンク
胴板−底板の接線部２Ｃに沿って移動させつつタンク胴
板２及び底板３の溶接を行い、タンク胴板２に底板３を
固定してタンク１を完成する。しかる後横駆動軸７を移
動させ、可動締め付け治具７Ｂを所定位置に退避させ図
示しない搬送装置によりタンク１を搬出する。上記の実
施例では、タンク胴板２が円筒形に形成されていたが、
図４に示したように、断面が略矩形状を呈する角形のタ
ンク胴板２に略矩形状板の底板３を溶接にて固定する場
合にも同様にこの発明を適用することが出来る。この場
合底板３を締め付け仮固定する為の可動締め付け治具７
Ｂは一方向からだけではなく、二方向または三方向から
締め付けるような構成ににしても差し支えない。更に固
定締め付け７Ａ及び可動締め付け治具７Ｂにタンク胴板
２の長さに合わせて上下に移動する縦方向の駆動機構を
付加すれば、段取り時間の低減及び自動化が促進され
る。Embodiments of the present invention will be described below with reference to FIGS. 2 and 3 show an embodiment in which a disc-shaped bottom plate 3 is welded to a tank body plate 2 formed in a cylindrical shape, and FIG. 2 shows the tank body plate 2 in the method of the present invention.
FIG. 3 is a plan view showing a state in which the is positioned, and FIG.
FIG. The positioning device used in the method of the present invention comprises a pedestal 4 on which the tank shell 2 can be placed and held. A hole smaller than the outer diameter of the tank body plate 2 is formed at substantially the center of this gantry 4, and a vertically movable lower drive shaft 5 is arranged at the center thereof. A disk-shaped bottom plate holding fitting 5A is fixed to the tip of the lower drive shaft 5, and the outer diameter of the bottom plate holding fitting 5A is set to be smaller than the inner diameter of the tank body plate 2. Further, an upper drive shaft 6 which is held by a column 4A and is vertically movable is arranged above the gantry 4. A disc-shaped bottom plate positioning member 6A is fixed to the tip of the upper drive shaft 6, and the bottom plate positioning member 6A is formed with a disc smaller than the inner diameter of the tank body plate 2 and a disc larger than the outer shape of the tank body plate 2 with a step. ing. Further, a lateral drive shaft 7 which is movable left and right is arranged substantially in the center of the column 4A of the gantry 4. At the tip of the lateral drive shaft 7, a movable tightening jig 7B, which is divided into two parts having substantially the same diameter as the outer diameter of the tank body plate 2, is fixed. A fixed tightening jig 7A having the same shape is arranged on the side opposite to the movable tightening jig 7B. In this embodiment, a positioning device is constituted by the gantry 4, the lower drive shaft 5 and the bottom plate holding fitting 5A, the upper drive shaft 6 and the bottom plate positioning fitting 6A, the lateral drive shaft 7, the movable tightening jig 7B and the fixed tightening jig 7A. It is configured. A welding torch 8 is provided above the gantry 4.
An automatic welding device (not shown) equipped with a welding torch 8 is provided in the tank body plate-bottom plate tangential portion 2 of the automatic welding device.
Welding is performed automatically while moving along C. Also, when attaching or detaching the tank body plate 2 to or from the mount 4,
The welding torch 8 can be retracted to a predetermined position. In the present embodiment, first, the tank body plate 2 formed into a cylindrical shape is placed in a state in which the surface of the flange 2A faces downward, and then the bottom plate 3 is arranged at an arbitrary position inside the tank body plate 2. After that, the tank shell plate 2 is transported to the position of the gantry 4 by a transport device (not shown) and placed on the gantry 4, and the outer side of the tank shell plate 2 is brought into contact with the fixed tightening jig 7A. After that, the upper drive shaft 6 is moved downward to move the lower end 2B of the tank body plate 2
The bottom plate positioning fitting 6A is brought into contact with. In this case, a disk portion of the bottom plate positioning member 6A that is larger than the outer diameter of the tank shell plate 2 contacts the lower end 2B of the tank shell plate, and a disk portion that is smaller than the inner diameter of the tank shell plate 2 enters the inside of the tank shell plate 2. The thickness of the step portion that enters the inside is the lower end 2B of the tank body plate 2
The positioning dimension up to the bottom plate 3 is obtained. Next, the lower drive shaft 5 is moved upward. At this time, the bottom plate holding metal fitting 5A fixed to the tip of the lower drive shaft 5 pushes up the bottom plate 3 arranged at an arbitrary position inside the tank body plate 2, and the bottom plate 3 is placed on the small disk portion of the bottom plate positioning metal fitting 6A. Abut,
The position of the bottom plate 3 is determined. Next, the lateral drive shaft 7 is moved in the direction of the tank shell plate 2, and the tank shell plate 2 is tightened by the fixed tightening jig 7A and the movable tightening jig 7B to temporarily fix the bottom plate 3. In this case, since the movable tightening jig 7B moves toward the tank shell plate 2 and comes into contact with the tank shell plate 2 to stop, the tank shell plate 2 is automatically kept in a fixed positional relationship with the automatic welding device. Positioned. Next, after temporary fixing, the lower drive shaft 5 and the upper drive shaft 6 are moved to retract the bottom plate holding metal fitting 5A and the bottom plate positioning metal fitting 6A to predetermined positions. Next, the welding torch 8 of the automatic welding device is directed from above to the joint between the bottom plate 3 and the bottom plate positioning portion, and is moved along the tangent portion 2C of the tank body plate-bottom plate to weld the tank body plate 2 and the bottom plate 3. Then, the bottom plate 3 is fixed to the tank body plate 2 to complete the tank 1. After that, the horizontal drive shaft 7 is moved, the movable tightening jig 7B is retracted to a predetermined position, and the tank 1 is unloaded by a carrying device (not shown). In the above embodiment, the tank shell plate 2 was formed in a cylindrical shape,
As shown in FIG. 4, the present invention can be similarly applied to the case where the bottom plate 3 having a substantially rectangular plate is fixed to the rectangular tank body plate 2 having a substantially rectangular cross section by welding. In this case, a movable tightening jig 7 for tightening and temporarily fixing the bottom plate 3
B may be configured not only from one direction but also from two or three directions. Furthermore, by adding a vertical drive mechanism that moves up and down according to the length of the tank body plate 2 to the fixed tightening 7A and the movable tightening jig 7B, reduction of setup time and automation can be promoted.
【０００７】[0007]
【発明の効果】この発明によれば、上述したようにタン
ク胴板を架台に保持してから、タンク胴板内側で底板を
タンクの底板位置決め部に移動させて、固定締め付け治
具及び可動締め付け治具にて仮固定することにより、底
板をその上方からタンク胴板に直接本溶接することが可
能となり、仮固定の為の仮付け溶接作業を削除すること
ができ、更にタンク胴板にプレス加工にて底板の位置決
め位置を形成することが不要となりプレス加工工数が削
減出来る。また底板の位置決めは位置決め装置により自
動的に行われるので、タンク胴板に底板を取り付ける作
業の自動化が可能であり、能率良く行うことが出来る。
またタンク胴板と底板を溶接により行っていた仮固定が
不要となるため、本溶接時の溶接条件が同一となり溶接
欠陥を低減する事が出来る。As described above, according to the present invention, after holding the tank shell plate on the frame as described above, the bottom plate is moved to the bottom plate positioning portion of the tank on the inner side of the tank shell plate, and the fixed tightening jig and the movable tightening jig are used. By temporarily fixing with a jig, the bottom plate can be directly welded to the tank body plate directly from above, and the temporary welding work for temporary fixing can be eliminated. Since it is unnecessary to form the positioning position of the bottom plate by processing, the number of press working steps can be reduced. Further, since the positioning of the bottom plate is automatically performed by the positioning device, the work of attaching the bottom plate to the tank body plate can be automated and can be performed efficiently.
In addition, since the temporary fixing, which was performed by welding the tank body plate and the bottom plate, is not necessary, the welding conditions during the main welding are the same and welding defects can be reduced.
【図１】この発明の方法により製造するタンクの一例を
示した断面図である。FIG. 1 is a cross-sectional view showing an example of a tank manufactured by the method of the present invention.
【図２】この発明を実施する装置の構成例を示した平面
図である。FIG. 2 is a plan view showing a configuration example of an apparatus for carrying out the present invention.
【図３】図２のＣ−Ｃ断面図である。FIG. 3 is a sectional view taken along line CC of FIG.
【図４】この発明を実施する装置の他の構成例を示した
平面図である。FIG. 4 is a plan view showing another configuration example of an apparatus for carrying out the present invention.
【符号の説明】 １ タンク ２ タンク胴板 ２Ａ フランジ ２Ｂ タンク胴板の下端 ２Ｃ タンク胴板−底板の接線部 ３ 底板 ４ 架台 ４Ａ 支柱 ５ 下部駆動軸 ５Ａ 底板保持金具 ６ 上部駆動軸 ６Ａ 底板位置決め金具 ７ 横駆動軸 ７Ａ 固定締め付け治具 ７Ｂ 可動締め付け治具 ８ 溶接トーチ[Explanation of symbols] 1 tank 2 tank body plate 2A flange 2B lower end of tank body plate 2C tank body plate-bottom plate tangent portion 3 bottom plate 4 frame 4A column 5 lower drive shaft 5A bottom plate holding bracket 6 upper drive shaft 6A bottom plate positioning bracket 7 Horizontal drive shaft 7A Fixed tightening jig 7B Movable tightening jig 8 Welding torch
Claims (1)
ンク胴板と、タンク胴板の下端を閉じるように設けられ
た底板からなる電気機器タンクを製造する方法におい
て、タンク胴板を保持する架台と、架台の面に対し下部
より直角な方向に移動する下部駆動軸と、下部駆動軸の
先端に設けられた底板保持金具と、架台の面に対し上部
より直角な方向に移動する上部駆動軸と、上部駆動軸の
先端に設けられた底板位置決め金具と、架台の面に対し
水平方向に移動する横駆動軸と、横駆動軸の先端に設け
られた可動締め付け治具と、可動締め付け治具に相対し
て設けられた固定締め付け治具を備えた位置決め装置
と、溶接装置を用意し、タンク胴板をフランジ面が下方
に向いた状態とし、底板をタンク胴板内側の任意な位置
に置いた状態で架台に保持した後、上部駆動軸を下方に
移動させ底板位置決め金具をタンク胴板下端に当接さ
せ、その後下部駆動軸を上方に移動させ底板保持金具で
底板を押し上げ底板位置決め金具とで挟み付け仮固定し
た後、横駆動軸をタンク胴板方向に移動させ可動締め付
け治具と固定締め付け治具でタンク胴板と底板を締め付
け仮固定させた後、下部駆動軸、上部駆動軸を移動させ
底板保持金具、底板位置決め金具を所定位置に退避さ
せ、次いで前記溶接装置により底板を上方からタンク胴
板に溶接することを特徴とする電気機器タンクの製造方
法。1. A method of manufacturing an electric equipment tank comprising a tank shell plate having both ends open and a flange at the upper end, and a bottom plate provided so as to close the lower end of the tank shell plate. And a lower drive shaft that moves in a direction perpendicular to the plane of the gantry, a bottom plate holding bracket provided at the tip of the lower drive shaft, and an upper drive shaft that moves in a direction perpendicular to the plane of the gantry. And a bottom plate positioning fitting provided at the tip of the upper drive shaft, a horizontal drive shaft that moves in the horizontal direction with respect to the surface of the gantry, a movable tightening jig provided at the end of the horizontal drive shaft, and a movable tightening jig. Prepare a positioning device equipped with a fixing and tightening jig that is installed opposite to the welding device, place the tank body plate with the flange surface facing downward, and place the bottom plate at any position inside the tank body plate. Stored in a stand After holding it, move the upper drive shaft downward to bring the bottom plate positioning bracket into contact with the lower end of the tank shell plate, and then move the lower drive shaft upward to push the bottom plate up with the bottom plate holding bracket and sandwich it with the bottom plate positioning bracket to temporarily fix it. After that, the horizontal drive shaft is moved in the direction of the tank body plate, the tank body plate and the bottom plate are temporarily fixed by the movable tightening jig and the fixed tightening jig, and then the lower drive shaft and the upper drive shaft are moved to move the bottom plate holding bracket. A method for manufacturing an electric equipment tank, characterized in that the bottom plate positioning metal fitting is retracted to a predetermined position, and then the bottom plate is welded to the tank body plate from above by the welding device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16169392A JP2748290B2 (en) | 1992-05-29 | 1992-05-29 | Manufacturing method of electric equipment tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16169392A JP2748290B2 (en) | 1992-05-29 | 1992-05-29 | Manufacturing method of electric equipment tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05335165A true JPH05335165A (en) | 1993-12-17 |
| JP2748290B2 JP2748290B2 (en) | 1998-05-06 |
Family
ID=15740072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16169392A Expired - Lifetime JP2748290B2 (en) | 1992-05-29 | 1992-05-29 | Manufacturing method of electric equipment tank |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2748290B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104867664A (en) * | 2015-06-02 | 2015-08-26 | 国家电网公司 | U-shaped cushion block used on transformer and fabrication method thereof |
| CN109285688A (en) * | 2018-09-11 | 2019-01-29 | 南京机电职业技术学院 | A kind of transformer device automatic positioning clamping mechanism |
-
1992
- 1992-05-29 JP JP16169392A patent/JP2748290B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104867664A (en) * | 2015-06-02 | 2015-08-26 | 国家电网公司 | U-shaped cushion block used on transformer and fabrication method thereof |
| CN109285688A (en) * | 2018-09-11 | 2019-01-29 | 南京机电职业技术学院 | A kind of transformer device automatic positioning clamping mechanism |
| CN109285688B (en) * | 2018-09-11 | 2020-06-19 | 南京机电职业技术学院 | Automatic positioning and clamping mechanism for transformer assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2748290B2 (en) | 1998-05-06 |
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