JPH039898Y2 - - Google Patents
Info
- Publication number
- JPH039898Y2 JPH039898Y2 JP1987031778U JP3177887U JPH039898Y2 JP H039898 Y2 JPH039898 Y2 JP H039898Y2 JP 1987031778 U JP1987031778 U JP 1987031778U JP 3177887 U JP3177887 U JP 3177887U JP H039898 Y2 JPH039898 Y2 JP H039898Y2
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- welding
- main body
- nozzle
- tip
- 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 99
- 239000000463 material Substances 0.000 claims description 14
- 239000011261 inert gas Substances 0.000 claims description 11
- 238000001125 extrusion Methods 0.000 claims description 6
- 210000000078 claw Anatomy 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Landscapes
- Arc Welding In General (AREA)
Description
【考案の詳細な説明】
考案の技術分野
本考案は、TIG溶接に用いられる溶接装置の改
良に関する。[Detailed Description of the Invention] Technical Field of the Invention The present invention relates to improvement of a welding device used for TIG welding.
従来技術
通常、TIG溶接用の電極は、溶接金属に対し最
適な問題で、ホルダーなどに固定されている。Prior Art Usually, electrodes for TIG welding are fixed in a holder, etc., which is optimal for the weld metal.
この状態で、溶接が連続的に行われると、、電
極の先端部分が摩耗するため、アークが不安定と
なり、溶接不良が発生する。したがつて、適当な
時期をみて、電極の先端を必要に応じ研磨し、再
び適当な距離でホルダーに固定するることにな
る。このため、溶接の効率が悪く、また溶接不良
の発生率も多くなつている。 If welding is performed continuously in this state, the tip of the electrode will wear out, making the arc unstable and causing welding defects. Therefore, at an appropriate time, the tip of the electrode is polished as necessary, and then fixed to the holder again at an appropriate distance. For this reason, welding efficiency is poor and the incidence of welding defects is increasing.
ところで、溶接の自動電圧調整装置が用いられ
ると、電極が摩耗したとき、溶接電圧が自動的に
調整されるため、溶接状態が比較的安定するもの
の、この場合にも、電極棒の突出量を調整する必
要がある。また、溶接電圧の自動調節装置との関
連で、電極を自動的に交換する方法もあるが、構
造が複雑でしかも高価であるため、それらの装置
は、専用の溶接工場以外にまだ普及していない。 By the way, when an automatic welding voltage adjustment device is used, the welding voltage is automatically adjusted when the electrode wears out, making the welding condition relatively stable. Need to adjust. In addition, there are methods for automatically replacing electrodes in connection with automatic welding voltage adjustment devices, but these devices are not yet widely used outside of dedicated welding factories due to their complex structures and high costs. do not have.
なお、電極のつき出し量を手動によつて調整す
るものとして、特公昭55−45312号または特公昭
56−1988号などの技術が存在する。これらのもの
は、いずれも自動化できるほどの構造でなく、し
たがつて、今日の自動溶接にそのまま梨用できな
いことになる。 In addition, for manually adjusting the amount of protrusion of the electrode, Japanese Patent Publication No. 55-45312 or
There are techniques such as No. 56-1988. None of these devices have a structure that can be automated, and therefore cannot be directly used in today's automatic welding.
考案の目的
ここに、本考案の目的は、電極のつき出し量を
外部から調整できるような支持構造および電極の
つき出しの自動的な制御手段を提供することであ
る。OBJECT OF THE INVENTION An object of the present invention is to provide a support structure that allows the amount of protrusion of the electrode to be adjusted from the outside, and a means for automatically controlling the protrusion of the electrode.
考案の解決手段および作用
上記目的の下に、本考案はトーチの本体内で棒
状の電極を保持部材によつて把持または解放可能
な状態で支持するとともに、溶接時にアークの形
成状態を制御装置により電気的に測定し、電極先
端の消耗時に、電極つき出し装置の押し出し部材
を動作させ、電極のつき出し量を外部から自動的
に調整できるようにしている。Solution Means and Effects of the Invention In view of the above-mentioned objectives, the present invention supports a rod-shaped electrode within the main body of a torch in a state in which it can be gripped or released by a holding member, and also controls the state of arc formation during welding by a control device. It is electrically measured, and when the electrode tip wears out, the extrusion member of the electrode extrusion device is operated, so that the amount of protrusion of the electrode can be automatically adjusted from the outside.
そして、このTIG溶接用トーチは、溶接中に、
不活性ガスを溶接位置に噴射することによつて、
溶接金属の酸化や窒化などを防止するため、不活
性ガス通路を備えている。本考案は、上記保持部
材や押圧部材の存在にもかかわらず、この不活性
ガス通路をそれらの部材の動作に影響のない状態
で組み込んでいる。 During welding, this TIG welding torch
By injecting inert gas into the welding location,
Equipped with an inert gas passage to prevent oxidation and nitridation of weld metal. The present invention incorporates this inert gas passage without affecting the operation of these members, despite the presence of the holding member and the pressing member.
考案の構成 まず、第１図は、溶接装置１を示している。Structure of the idea First, FIG. 1 shows a welding device 1. As shown in FIG.
この溶接装置１はTIG溶接用トーチ２に溶接方
向の運動を与えるために、例えば直交座標型の溶
接用ロボツト３、上記TIG溶接用トーチ２に電気
的に接続され、TIG溶接用トーチ２の電極４と溶
接材料５との間にアークを発生させるための溶接
機６、溶接用ロボツト３の第１原点から離れた第
２原点位置に設けられ、電極４を所定の量だけつ
き出すための電極つき出し装置７、および溶接機
６からの信号を入力として溶接用ロボツト３およ
び電極つき出し装置７の動きを制御するために制
御装置８によつて組み立てられている。 This welding device 1 is electrically connected to, for example, an orthogonal coordinate type welding robot 3 and the TIG welding torch 2 in order to give movement to the TIG welding torch 2 in the welding direction. a welding machine 6 for generating an arc between the welding robot 3 and the welding material 5; It is assembled by a control device 8 in order to control the movements of the welding robot 3 and the electrode sticking device 7 by inputting signals from the sticking device 7 and the welding machine 6.
次に、第２図および第３図はTIG溶接用トーチ
２の具体的な構成を示している。このTIG溶接用
トーチ２は、本体１０によつて組み立てられてお
り、その一部の取り付け部１１によつて溶接用ロ
ボツト３のアーム９の部分に適切な傾きで取り付
けられる。そして、この本体１０は、、上下方向
に丸断面の収納孔１２を形成しており、その後端
および先端部分で、ねじ込みにより固定されたガ
イド１３および先細りのノズル１４を備えてい
る。上記ガイド１３は、中空状であり、その長手
方向中心位置で押し出し部材１５を軸線方向に摺
動自在に保持し、その一端を外部に突出させ、抜
け止め状態で収納している。また、上記本体１０
は、収納孔１２の内部で中空状のアダプター１
６、例えば２つ割りまたは４つ割り型のコレツト
爪３０を有する保持部材１７およびタングステン
製で棒状の電極４を同心的に保持している。上記
アダプター１６は、ナツト１８によつて収納孔１
２の内部に固定されており、収納孔１２に対する
はまり合い部分で螺旋状の冷却溝１９を形成して
おり、その各溝端部は、それぞれ冷却液２０を通
過させるために、本体１０側の通路２１，２２を
介し、入口ポート２３、出口ポート２４にそれぞ
れつながつている。また、上記保持部材１７は、
本体１０側の案内孔２５と交差する位置で、角断
面状の傾斜貫通孔２６を形成しており、この部分
でクランプ手段として同じ傾斜のクランプ片２７
に対し、滑り対偶をなしている。なお、前記電極
４は、クランプ片２７の移動方向の細長孔２８の
内部で交差し、後端部分で押し出し部材１５に当
たる関係にあり、また先端部分で保持部材１７の
コレツト爪３０に保持された状態で、ノズル１４
内を貫通し、その開口面から所定の量だけ露呈し
ている。この保持部材１７の内部は、、ナツト１
８の連通孔３１、収納孔１２の上部空間ととも
に、不活性ガス通路２９を形成しており、、不活
性ガス３２の接続ポート３３に達しており、また
コレツト爪３０の〓間から、保持部材１７の先端
孔３４を経てノズル１４の内部に達している。 Next, FIGS. 2 and 3 show a specific configuration of the TIG welding torch 2. This TIG welding torch 2 is assembled with a main body 10, and is attached to an arm 9 of a welding robot 3 at an appropriate inclination through a part of the attachment portion 11. The main body 10 has a storage hole 12 with a round cross section in the vertical direction, and is provided with a guide 13 fixed by screwing and a tapered nozzle 14 at the rear end and the tip. The guide 13 is hollow and holds the push-out member 15 slidably in the axial direction at its longitudinal center position, with one end protruding outside and housed in a manner that prevents it from coming off. In addition, the main body 10
is a hollow adapter 1 inside the storage hole 12.
6. A holding member 17 having, for example, a two-split or quarter-split collector claw 30 and a rod-shaped electrode 4 made of tungsten are held concentrically. The adapter 16 is attached to the storage hole 1 by a nut 18.
2, and a spiral cooling groove 19 is formed at the part that fits into the storage hole 12, and each groove end is connected to a passage on the main body 10 side in order to allow the cooling liquid 20 to pass through. It is connected to an inlet port 23 and an outlet port 24 via ports 21 and 22, respectively. Further, the holding member 17 is
An inclined through hole 26 with a square cross section is formed at a position intersecting with the guide hole 25 on the main body 10 side, and a clamp piece 27 of the same inclination is used as a clamping means at this part.
In contrast, it forms a sliding counterpart. The electrodes 4 cross each other inside the elongated hole 28 in the moving direction of the clamp piece 27, are in contact with the push-out member 15 at the rear end, and are held by the collector claw 30 of the holding member 17 at the tip. state, nozzle 14
It penetrates through the inside and a predetermined amount is exposed from the opening surface. Inside this holding member 17, the nut 1
Together with the communication hole 31 of 8 and the upper space of the storage hole 12, an inert gas passage 29 is formed, which reaches a connection port 33 for the inert gas 32. It reaches the inside of the nozzle 14 through the tip hole 34 of 17.
一方、上記クランプ片２７はクランプ操作手段
として例えばピストン３５のピストンロツド３６
と一体的に形成されている。このピストン３５
は、本体１０の一部で形成されたエアシリンダ３
７の内部で電極４に対し交差する方向に摺動自在
に保持されている。なお、このエアシリンダ３７
の開口端は、栓３８によつて閉じられている。も
ちろん、このエアシリンダ３７の内部は、２つの
ポート３９，４０により駆動用空気４５を出し入
れできるようになつている。 On the other hand, the clamp piece 27 is used as a clamp operating means, for example, when the piston rod 36 of the piston 35 is used.
is integrally formed with. This piston 35
is an air cylinder 3 formed from a part of the main body 10
It is held inside the electrode 7 so as to be slidable in a direction crossing the electrode 4. Note that this air cylinder 37
The open end of is closed by a stopper 38. Of course, the inside of this air cylinder 37 is designed such that driving air 45 can be taken in and out through two ports 39 and 40.
次に、前記電極つき出し装置７は、、第４図に
示すように、溶接用ロボツト３の第１原点から離
れた位置で、その運動域内の第２原点の位置に設
けられており、この実施例によると、電極つき出
し用の駆動源として、シリンダ４１と、これのピ
ストンロツド４２と対向する位置に設けられた電
極受け４３によつて構成されている。これらのシ
リンダ４１および電極受け４３は、いずれもフレ
ーム４４などに位置決め状態で固定されている。 Next, as shown in FIG. 4, the electrode sticking device 7 is provided at a second origin within the motion range of the welding robot 3, which is located away from the first origin. According to the embodiment, the drive source for protruding the electrode is constituted by a cylinder 41 and an electrode receiver 43 provided at a position facing the piston rod 42 of the cylinder 41. Both the cylinder 41 and the electrode receiver 43 are fixed to a frame 44 or the like in a positioned manner.
考案の作用
制御装置８は、、溶接材料５の溶接位置に応じ
て、予めTIG溶接用トーチ２の姿勢制御および運
動経路制御に必要なデータを格納しており、これ
を順次読み出すことによつて、溶接用ロボツト３
の運動をＸ−Ｙ−Ｚ軸毎に制御していく。一方、
溶接機６はTIG溶接用トーチ２の電極４と、溶接
材料５との間に所定の溶接電圧をかけ、それらの
間でアークを発生させ、溶接材料５または溶加材
を溶融できる状態に調整される。Effect of the invention The control device 8 stores in advance data necessary for posture control and movement path control of the TIG welding torch 2 according to the welding position of the welding material 5, and by sequentially reading out the data, , welding robot 3
The movement of is controlled for each X-Y-Z axis. on the other hand,
The welding machine 6 applies a predetermined welding voltage between the electrode 4 of the TIG welding torch 2 and the welding material 5, generates an arc between them, and adjusts the welding material 5 or filler metal to a state where it can be melted. be done.
そこで、まず、溶接に当たり、ピストン３５が
駆動用空気４５の圧力を受けて、矢印Ａの方向に
前進しているため、クランプ片２７は、保持部材
１７を下向きの方向に押し付けている。この結
果、コレツト爪３０は、先端部分で、先端孔３４
の先細り内周面に接し、縮径方向に変形して、電
極４を適当な突出量で把持状態としている。 First, during welding, since the piston 35 moves forward in the direction of arrow A under the pressure of the driving air 45, the clamp piece 27 presses the holding member 17 in a downward direction. As a result, the collet pawl 30 has a distal end portion that is aligned with the distal end hole 34.
The electrode 4 is in contact with the tapered inner circumferential surface of the electrode 4 and deformed in the diametrical direction to grip the electrode 4 with an appropriate protrusion amount.
溶接の初期の段階で、溶接機６は、電極４に適
当な溶接電圧を印加している。そこで、制御装置
８は、溶接機６から適切な溶接電圧を確認してか
ら、溶接用ロボツト３を駆動し、TIG溶接用トー
チ２を待機位置の第１原点位置から溶接材料５の
溶接位置まで案内する。このとき、TIG溶接用ト
ーチ２は、溶接材料５の溶接面に対し、適切な間
隔をおいて対向する。このあと、制御装置８は、
溶接プログラムを実行し、予め記憶しているTIG
溶接用トーチ２の運動経路やその姿勢制御のデー
タに基づいて、TIG溶接用トーチ２を溶接材料５
の溶接線に沿つて移動させることにより、連続的
に溶接を行うとともに、常にアークの形成状態例
えば溶接電圧すなわち電極４と溶接材料５とのア
ーク電圧を継続的に測定していく。この間に、不
活性ガス３２は、接続ポート３３から連続的に送
り込まれ、不活性ガス通路２９、つまり電極４と
保持部材１７との〓間、さらに先端孔３４および
ノズル１４の内部を通り、溶接位置に間断なく噴
射される。このようにして、溶接中に、溶接材料
５の溶接位置が不活性ガス３２によつて包囲され
るため、、溶接材料５の金属は、空気中の酸素や
窒素と化合せず、錆などの発生の恐れのない状態
で溶接される。 At the initial stage of welding, the welding machine 6 applies an appropriate welding voltage to the electrode 4. Therefore, after confirming the appropriate welding voltage from the welding machine 6, the control device 8 drives the welding robot 3 to move the TIG welding torch 2 from the first origin position in the standby position to the welding position of the welding material 5. invite. At this time, the TIG welding torch 2 faces the welding surface of the welding material 5 with an appropriate distance therebetween. After this, the control device 8
TIG that executes welding programs and stores them in advance
Based on the motion path of the welding torch 2 and data on its posture control, the TIG welding torch 2 is moved to the welding material 5.
By moving it along the welding line, welding is performed continuously, and the state of arc formation, for example, the welding voltage, that is, the arc voltage between the electrode 4 and the welding material 5 is continuously measured. During this time, the inert gas 32 is continuously fed from the connection port 33, passes through the inert gas passage 29, that is, between the electrode 4 and the holding member 17, and further through the tip hole 34 and the inside of the nozzle 14 for welding. It is sprayed continuously at the location. In this way, during welding, the welding position of the welding material 5 is surrounded by the inert gas 32, so the metal of the welding material 5 does not combine with oxygen and nitrogen in the air, and rust etc. Welding is carried out under conditions where there is no risk of occurrence.
溶接の途中で、電極４の消耗によりアーク電圧
が所定の値よりも大きくなると、溶接用ロボツト
３の位置を補正してアーク電圧を一定にする。 During welding, when the arc voltage becomes greater than a predetermined value due to wear of the electrode 4, the position of the welding robot 3 is corrected to keep the arc voltage constant.
これを繰り返して電極４の消耗が大きくなる
と、ノズル１４よりも電極４の先端が引つ込ん
で、ノズル１４が溶接材料５に当たつてしまい、
アーク電圧を一定にできなくなる。そこで、制御
装置８は、電極４の先端部分の消耗と判断し、溶
接機６に溶接の中断指令を発生し、溶接を一時的
に中断してから、電極調整プログラムに移り、溶
接用ロボツト３を駆動することにより、TIG溶接
用トーチ２を第２原点位置まで移動させ、次にピ
ストン３５を矢印Ｂの方向に後退させることによ
り、保持部材１７をアンクランプ方向に引き上
げ、コレツト爪３０を開くことによつて、電極４
を解放状態として電極４のつき出し操作に備えた
後、電極つき出し装置７を動作させる。TIG溶接
用トーチ２が第２原点位置まで案内されたとき、
TIG溶接用トーチ２のノズル１４の開口面と電極
受け４３の対向面とは一定の距離をおいて対向し
ている。そこで、電極つき出し装置７は、制御装
置８から動作指令を受けた時点で、シリンダ４１
を動作させ、そのピストンロツド４２を進出させ
て、押し出し部材１５とガイド１３の内部に押し
込むことにより、解放状態の電極４を突出させ、
その先端を電極受け４３に押し当てる。この結
果、電極４は、ノズル１４の開口面から所定の量
だけつき出ることになる。このようにして、電極
４のつき出し操作が完了した時点で、制御装置８
は、再びピストン３５を矢印Ａの方向に移動させ
て、電極４を把持し、固定状態とし、これを確認
してから、再び残りの溶接プログラムを実行して
いくことになる。 If this process is repeated and the electrode 4 becomes worn out, the tip of the electrode 4 will retract more than the nozzle 14, causing the nozzle 14 to hit the welding material 5.
The arc voltage cannot be kept constant. Therefore, the control device 8 determines that the tip of the electrode 4 is worn out, issues a command to the welding machine 6 to interrupt welding, temporarily interrupts the welding, moves to the electrode adjustment program, and starts the welding robot 3. By driving the TIG welding torch 2 to the second origin position, and then moving the piston 35 backward in the direction of arrow B, the holding member 17 is pulled up in the unclamping direction and the collet claw 30 is opened. Possibly electrode 4
After setting the electrode 4 in the released state to prepare for the pushing-out operation of the electrode 4, the electrode pushing-out device 7 is operated. When the TIG welding torch 2 is guided to the second origin position,
The opening surface of the nozzle 14 of the TIG welding torch 2 and the opposing surface of the electrode receiver 43 face each other with a certain distance therebetween. Therefore, when the electrode sticking device 7 receives an operation command from the control device 8, the electrode sticking device 7 moves the cylinder 41
by operating the piston rod 42 and pushing it into the pushing member 15 and the guide 13, thereby protruding the electrode 4 in the released state,
The tip is pressed against the electrode receiver 43. As a result, the electrode 4 protrudes from the opening surface of the nozzle 14 by a predetermined amount. In this way, when the operation of pushing out the electrode 4 is completed, the control device 8
Then, the piston 35 is moved in the direction of the arrow A again to grasp the electrode 4 and set it in a fixed state, and after confirming this, the remaining welding program is executed again.
考案の変形例
電極４の送り量は、実施例にようにノズル１４
と電極受け４３との間隔に限らず、比例制御によ
つても実現できる。例えば、TIG自動電圧調整装
置が溶接機６の内部に組み込まれているとき、そ
の出力電圧は、比例的なアナログ量のつき出し量
に変換される。そして、このアナログ量のつき出
し信号は、例えば送りモータなどの回転量に変換
され、その回転量に応じて、送りねじ機構などを
用い、電極４をつき出し方向に移動させるように
してもよい。この場合、電極４の移動量は、直接
出力電圧と関係しているため、電極受け４３は、
不必要となる。Modified Example of the Invention The feed amount of the electrode 4 is adjusted to the nozzle 14 as in the embodiment.
This can be realized not only by controlling the distance between the electrode receiver 43 but also by proportional control. For example, when the TIG automatic voltage regulator is installed inside the welding machine 6, its output voltage is converted into a proportional analog amount of welding. The analog ejecting signal may be converted into the amount of rotation of a feed motor, for example, and the electrode 4 may be moved in the ejecting direction using a feed screw mechanism or the like according to the amount of rotation. . In this case, since the amount of movement of the electrode 4 is directly related to the output voltage, the electrode receiver 43 is
becomes unnecessary.
さらに、上記TIG溶接用トーチ２は、電極４の
把持（アンクランプ）状態で、外部から押圧力を
取り入れて、電極４をつき出している。しかし、
このつき出しのための制御は、シヤープペンシル
のノツク方式のように、つき出し方向の動きをカ
ム機構によつて変換し、１回の押し出し操作で、
一定の量だけ押し出すような形式のものであつて
もよい。その場合の押し出し量は、ノツク数によ
つて規制できることになる。もちろん、そのノツ
クのための手段は、第２原点などに取り付けられ
ている必要はなく、本体１０の上方部分に直接取
り付けられていれば足りる。また、押し出し部材
１５の押圧は、手動で行つてもよい。 Further, in the TIG welding torch 2, the electrode 4 is pushed out by applying a pressing force from the outside while the electrode 4 is in a gripped (unclamped) state. but,
This pushing out control converts the movement in the pushing direction using a cam mechanism, similar to the knock method of a sharp pencil, and with a single pushing operation,
It may be of a type that extrudes only a certain amount. In that case, the amount of extrusion can be regulated by the number of notches. Of course, the means for the notch does not need to be attached to the second origin or the like, and it is sufficient if it is attached directly to the upper part of the main body 10. Further, the pushing member 15 may be pressed manually.
考案の効果 本考案では、下記の特有の効果が得られる。Effect of invention The present invention provides the following unique effects.
本体内で電極が保持部材によつて把持または解
放可能な状態で保持されており、溶接中にアーク
の形成状態が制御装置により電気的に測定されて
いて、電極先端の消耗時に電極つき出し装置の押
し出し部材の動作によつて、電極のつき出し量が
自動的に調整できるため、電極と溶接材料との間
のアークが安定し、品質のよい溶接が連続的に可
能となり、しかもそのつき出し量が自動化されて
いるため、TIG溶接の連続的な効率が良くなる。 The electrode is held within the main body in a gripping or releasable state by a holding member, the state of arc formation is electrically measured by a control device during welding, and an electrode sticking device is provided when the electrode tip wears out. The amount of protrusion of the electrode can be automatically adjusted by the operation of the extrusion member, so the arc between the electrode and the welding material is stabilized, making continuous high-quality welding possible. The continuous efficiency of TIG welding is improved because the quantity is automated.
また保持部材や押し出し部材などが電極に対し
交差する状態で設けられており、これらの動きに
かかわらず、TIG溶接に必要な不活性ガスが本体
のガス通路を利用して、ノズルの先端までに安定
に導かれる。 In addition, holding members and extruding members are installed to cross the electrode, and regardless of their movements, the inert gas necessary for TIG welding is delivered to the tip of the nozzle using the gas passage in the main body. guided by stability.
しかも、この電極のつき出し量の調整がトーチ
の本体部分を分解しないまま外部から簡単に行え
るため、溶接の一時的な中断後のつき出し量の調
整によつて、短時間の後に同じ再現性で、TIG溶
接が継続的に行える。 Moreover, since the amount of protrusion of the electrode can be easily adjusted from the outside without disassembling the torch main body, the same reproducibility can be achieved after a short period of time by adjusting the amount of protrusion after a temporary interruption of welding. TIG welding can be performed continuously.
第１図は溶接装置の側面図、第２図はTIG溶接
用トーチの平面図、第３図は同トーチの垂直断面
図、第４図は電極つき出し装置の側面図である。
１…溶接装置、２…TIG溶接用トーチ、３…溶
接用ロボツト、４…電極、５…溶接材料、６…溶
接機、７…電極つき出し装置、８…制御装置、１
０…本体、１４…ノズル、１５…押し出し部材、
１７…保持部材、２９…不活性ガス通路、３０…
コレツト爪、３３…接続ポート、３７…エアシリ
ンダ、４１…シリンダ、４３…電極受け。
FIG. 1 is a side view of a welding device, FIG. 2 is a plan view of a TIG welding torch, FIG. 3 is a vertical sectional view of the torch, and FIG. 4 is a side view of an electrode sticking device. 1... Welding device, 2... TIG welding torch, 3... Welding robot, 4... Electrode, 5... Welding material, 6... Welding machine, 7... Electrode sticking device, 8... Control device, 1
0... Main body, 14... Nozzle, 15... Extrusion member,
17... Holding member, 29... Inert gas passage, 30...
Collet claw, 33... Connection port, 37... Air cylinder, 41... Cylinder, 43... Electrode holder.
Claims (1)
し先端が露呈した棒状の電極、本体内に設け、、
進退により電極の把持、解放をする電極の保持部
材、および本体よりノズルに至る不活性ガス通路
からなるTIG溶接用トーチと、 TIG溶接用トーチの本体後方に進退自在に設け
た電極の押し出し部材および押し出し部材のつき
出し用駆動源を有する電極つき出し装置と、 電極と溶接材料との間に形成されるアークの状
態を電気的に測定し、電極先端の消耗を検出する
とともに、上記電極先端の消耗を検出したときに
上記つき出し用駆動源を動作させて電極を所定量
だけつき出させる制御装置と、 からなることを特徴とする溶接装置。[Claims for Utility Model Registration] A nozzle provided at the front of the main body, a rod-shaped electrode that passes through the nozzle and has an exposed tip, provided inside the main body,
A TIG welding torch consisting of an electrode holding member that grips and releases the electrode by moving forward and backward, and an inert gas passage from the main body to the nozzle; An electrode extrusion member that is provided at the rear of the main body of the TIG welding torch so that it can move forward and backward; An electrode pushing device that has a driving source for pushing out the pushing member, and electrically measures the state of the arc formed between the electrode and the welding material, detects wear on the tip of the electrode, and detects wear on the tip of the electrode. A welding device comprising: a control device that operates the ejecting drive source to eject the electrode by a predetermined amount when wear is detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987031778U JPH039898Y2 (en) | 1987-03-06 | 1987-03-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987031778U JPH039898Y2 (en) | 1987-03-06 | 1987-03-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63138976U JPS63138976U (en) | 1988-09-13 |
| JPH039898Y2 true JPH039898Y2 (en) | 1991-03-12 |
Family
ID=30837824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987031778U Expired JPH039898Y2 (en) | 1987-03-06 | 1987-03-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH039898Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL1024169C2 (en) * | 2003-08-27 | 2005-03-01 | Prolyte Vastgoed B V | Welding device and welding torch. |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59223164A (en) * | 1983-06-03 | 1984-12-14 | Fujikura Ltd | Continuous welding of long metallic tube seam and arc torch for tig welding of seam part |
-
1987
- 1987-03-06 JP JP1987031778U patent/JPH039898Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59223164A (en) * | 1983-06-03 | 1984-12-14 | Fujikura Ltd | Continuous welding of long metallic tube seam and arc torch for tig welding of seam part |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63138976U (en) | 1988-09-13 |
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