JPH07164147A - Device for changing contact chip - Google Patents

Device for changing contact chip

Info

Publication number
JPH07164147A
JPH07164147A JP35138893A JP35138893A JPH07164147A JP H07164147 A JPH07164147 A JP H07164147A JP 35138893 A JP35138893 A JP 35138893A JP 35138893 A JP35138893 A JP 35138893A JP H07164147 A JPH07164147 A JP H07164147A
Authority
JP
Japan
Prior art keywords
contact tip
tip
welding torch
welding
socket
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
Application number
JP35138893A
Other languages
Japanese (ja)
Inventor
Akihiro Saito
昭博 斎藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to JP35138893A priority Critical patent/JPH07164147A/en
Publication of JPH07164147A publication Critical patent/JPH07164147A/en
Pending legal-status Critical Current

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  • Arc Welding In General (AREA)

Abstract

PURPOSE:To automatically change a contact chip by cutting a tip of welding wire, reversely carrying the wire behind a contact chip attaching screw of a welding torch barrel, rotating the contact chip, unscrewing, and pulling out it from the welding torch barrel. CONSTITUTION:The tip of welding wire 4 is pulled back behind a contact chip attaching screw 2 of a welding torch barrel 3, then a contact chip 1 is detached and attached, and the welding wire is returned to the original position. Therefore, a robot moves the welding torch to a cutting mechanism 13 part, and reversely carries the tip of the welding wire behind the contact chip attaching screw 2 of the welding torch barrel 3. Next, the robot moves the welding torch to pull out the contact chip by an attaching mechanism 31. Further, the robot moves the welding torch to attach a new contact chip inserted preliminarily in a socket 28 by the attaching mechanism, and moves again the welding torch to the cutting mechanism 13 to cut the wire.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、CO溶接やマグ溶接
等ワイヤアーク溶接のロボットによる無人化された連続
溶接において、消耗する溶接トーチ先端のコンタクトチ
ップを自動的に取換える装置に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for automatically exchanging a contact tip of a consumable welding torch in continuous unmanned welding by a robot for wire arc welding such as CO 2 welding and mag welding. is there.

【0002】[0002]

【従来の技術】図6に示すものは、本発明にも適用する
汎用のワイヤ溶接トーチ先端部で、導電性円柱形状のコ
ンタクトチップ1はその上部のネジ部2により溶接トー
チの銃身3に螺合固定されており、該銃身3とコンタク
トチップ1の軸心には溶接ワイヤ4を挿通する細孔5が
形成されている。また、上記コンタクトチップ1の外周
面は先端部に向かって先細りのテーパ形状に形成され、
その上部の外周面1aはコンタクトチップを螺合させる
スパサ掛用の多角形、図面では6角形に形成されてい
る。6はコンタクトチップ1の同心外周に設けられた円
筒形状のガスノグルで、上記溶接ワイヤと母材との間に
アークを発生して溶接する過程に、ガスノズル6から保
護ガスを噴出して上記溶接部を空気から遮断している。
2. Description of the Related Art FIG. 6 shows a tip portion of a general-purpose wire welding torch which is also applied to the present invention. A conductive cylindrical contact tip 1 is screwed onto a barrel 3 of a welding torch by a screw portion 2 on the upper portion thereof. The barrel 3 and the contact tip 1 are fitted and fixed, and a pore 5 through which the welding wire 4 is inserted is formed in the axial center of the barrel 3. Further, the outer peripheral surface of the contact chip 1 is formed in a taper shape tapering toward the tip end,
The outer peripheral surface 1a at the upper part thereof is formed in a polygonal shape for hanging a contactor into which a contact tip is screwed, that is, a hexagonal shape in the drawing. Reference numeral 6 denotes a cylindrical gas nogle provided on the concentric outer circumference of the contact tip 1, and in the process of welding by generating an arc between the welding wire and the base material, a protective gas is ejected from the gas nozzle 6 to cause the welding portion. Is isolated from the air.

【0003】コンタクトチップ1は溶接ワイヤの4の案
内ガイドと溶接ワイヤへの給電を目的としているが、コ
ンタクトチップ1の溶接ワイヤ4が通る細孔5と溶接ワ
イヤ4とは滑りながらの給電となるため、摩耗と電食と
でコンタクトチップ1の損傷が激しく、適時これを取換
えなければならない。
The contact tip 1 is intended to guide the welding wire 4 and to supply electric power to the welding wire, but the pore 5 through which the welding wire 4 of the contact tip 1 and the welding wire 4 slide while supplying electric power. Therefore, the contact tip 1 is severely damaged by abrasion and electrolytic corrosion, and the contact tip 1 must be replaced in a timely manner.

【0004】従来コンタクトチップを交換する場合に
は、手動によりガスノズル6を一旦取り外してコンタク
トチップ1を露出せしめた後、溶接ワイヤ4を10cm
程度送り出し溶接ワイヤ4の先端に形成されるワイヤ径
より大きな球状凝固部をニッパ等で切断し、スパナ等で
コンタクトチップ1を回動して銃身3から取り外し、銃
身3に新しいコンタクトチップ1を螺合して固定した
後、溶接ワイヤを若干送りだし先端を適長さに切り落と
し再びガスノズル6を取り付けていた。
Conventionally, in the case of replacing the contact tip, the gas nozzle 6 is temporarily removed by hand to expose the contact tip 1, and then the welding wire 4 is 10 cm.
The spherical solidified portion formed at the tip of the welding wire 4 that is larger than the wire diameter is cut with a nipper or the like, the contact tip 1 is rotated with a spanner or the like to remove it from the barrel 3, and the new contact tip 1 is screwed onto the barrel 3. After they were fixed together, the welding wire was slightly fed out, the tip was cut to an appropriate length, and the gas nozzle 6 was attached again.

【0005】[0005]

【発明が解決しようとする問題点】以上のように、従来
損耗の激しいコンタクトチップの交換は手動によらなけ
ればならず、ロボットによる自動溶接においてもコンタ
クトチップの交換のために度々人手を必要とし、無人化
率を低下させるばかりでなく、コンタクトチップを交換
する過程で溶接トーチ自体を動かしてしまい、溶接線の
位置ずれによるトラブルを発生させる場合もあった。
As described above, the contact tip, which has been conventionally worn down, must be replaced manually, and even in automatic welding by a robot, it is often necessary to manually replace the contact tip. In addition to lowering the unmanned rate, the welding torch itself may be moved in the process of replacing the contact tip, causing troubles due to displacement of the welding line.

【0006】[0006]

【問題点を解決するための手段】本発明は、上記のよう
な諸問題を解決するために成されたもので、コンタクト
チップの交換を全自動で行い得る装置を提供することを
目的とする。その要旨は、溶接ワイヤ先端を切断する工
程/該ワイヤを溶接トーチ銃身のコンタクトチップ取り
付けネジ以降まで逆送する工程/コンタクトチップを回
転させ螺合を外して溶接トーチ銃身から抜き取る工程/
新しいコンタクトチップのネジ部先端を溶接トーチ銃身
のネジ部に当接しながら回転させ螺合し取り付ける工程
からなる構成による。
SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide an apparatus capable of fully automatically changing contact tips. . The gist is the process of cutting the tip of the welding wire, the process of feeding the wire backward to the contact tip mounting screw of the welding torch barrel, and the process of rotating the contact tip to remove the screw and pulling it out of the welding torch barrel.
It consists of the process of rotating and screwing the tip of the screw part of a new contact tip to the screw part of the welding torch barrel while abutting it.

【0007】又、基台に固定した固定カットダイスと回
転する可動カットダイスとにより溶接ワイヤを切断する
回転軸と、コンタクトチップの多角形外周と同形でノズ
ル内径より小いさな外径のソケットを配したコンタクト
チップ抜き取り用回転軸と、抜き取り用と同形の装着用
回転軸とを、直接及び歯車で連結してエアー駆動揺動ア
クチュエータで駆動させてなる機構による。
Further, a rotary shaft for cutting the welding wire by a fixed cutting die fixed to the base and a rotating movable cutting die, and a socket having the same outer shape as the polygonal outer periphery of the contact tip and having an outer diameter smaller than the inner diameter of the nozzle are provided. The contact tip extraction rotary shaft and the mounting rotary shaft of the same shape as the extraction are connected directly and by a gear and driven by an air-driven swing actuator.

【0008】さらに、コンタクトチップの多角形外周と
取り外すソケットの多角形穴を嵌合させるため、コンタ
クトチップと同形でノズル内径より小いさな外径のソケ
ットを右ねじれはすば歯車の歯車軸に配する手段と、該
歯車軸を軸方向に弾発保持する手段と、該歯車軸を左ね
じれ角はすば歯車を介してエアー駆動揺動アクチュエー
タで駆動させるコンタクトチップの抜き取り機構とから
構成したことを特徴とするコンタクトチップ取換え装置
である。
Further, in order to fit the polygonal outer periphery of the contact tip and the polygonal hole of the socket to be removed, a socket having the same shape as the contact tip but having an outer diameter smaller than the inner diameter of the nozzle is mounted on the gear shaft of the right-hand helical gear. And a means for elastically holding the gear shaft in the axial direction, and a contact tip extracting mechanism for driving the gear shaft by an air-driven rocking actuator via a left-handed helical gear. This is a contact tip changing device.

【0009】[0009]

【実施例】図において、7は平面視長方形状の基台で、
上下一対の基板7A,7Bをパイプスペーサー8を介し
てネジ9で一体に連結して構成されている。10はエア
ー駆動の揺動アクチュエータで、前記下部基坂7Bの裏
面に固定されており、上下の基坂7A,7B間に突き出
しているその駆動軸11には、大径の平歯車12が固定
され、その上端には溶接ワイヤ4の切断機構13が設置
されている。
DESCRIPTION OF THE PREFERRED EMBODIMENTS In the drawings, reference numeral 7 is a rectangular base in plan view,
A pair of upper and lower substrates 7A and 7B are integrally connected by a screw 9 via a pipe spacer 8. An air-driven swing actuator 10 is fixed to the back surface of the lower base slope 7B, and a large diameter spur gear 12 is fixed to the drive shaft 11 protruding between the upper and lower base slopes 7A and 7B. The cutting mechanism 13 for the welding wire 4 is installed at its upper end.

【0010】前記切断機構13は、下面が開口した円筒
形状のケース部14と可働部15とから構成されてお
り、前記駆動軸11と同心においてネジ16により上部
基坂7A上に固定されていると共に、該ケース部14の
天面部にはその偏心位置に固定カットダイス17が設け
られている。この固定カットダイス17には中心に溶接
ワイヤ4が楽に挿入可能な小孔18が設けられており、
該小孔18と固定カットダイス17の下周縁が切断刃を
形成している。
The cutting mechanism 13 is composed of a cylindrical case portion 14 having an opened lower surface and a movable portion 15. The cutting mechanism 13 is concentric with the drive shaft 11 and fixed on the upper base slope 7A by a screw 16. In addition, a fixed cut die 17 is provided at the eccentric position on the top surface of the case portion 14. The fixed cutting die 17 is provided with a small hole 18 at the center through which the welding wire 4 can be easily inserted.
The small hole 18 and the lower peripheral edge of the fixed cutting die 17 form a cutting blade.

【0011】一方、上記可働部15は、前記ケース部1
4の内部において回転可能な円柱形状のもので、その下
端は前記駆動軸11の上端に固定されており、可動部1
5の天面部にはその偏心位置に前記ケース部14の固定
カットダイス17と同一形状の可動カットダイス19が
逆向きに固定されている。そして非可動時には、前記ケ
ース部14と可動部15の両カットダイス17,19の
小孔18,20は各々同軸上に密着しており、可動部1
5の回転により上下小孔18,20内に挿入された溶接
ワイヤが切断される。
On the other hand, the movable portion 15 corresponds to the case portion 1.
4 has a columnar shape that is rotatable inside, the lower end of which is fixed to the upper end of the drive shaft 11,
A movable cutting die 19 having the same shape as that of the fixed cutting die 17 of the case portion 14 is fixed in an eccentric position on the top surface portion 5 in the opposite direction. When not movable, the small holes 18 and 20 of both the cutting dies 17 and 19 of the case portion 14 and the movable portion 15 are coaxially in close contact with each other, and the movable portion 1
The welding wire inserted into the upper and lower small holes 18, 20 is cut by the rotation of 5.

【0012】31はコンタクトチップ1の取り外し機構
で、上部基坂7Aから突き出した取り外し中空回転軸2
8の先端部に固定部32とネジ33により固定されてお
り、前記固定部32の上面には円筒状のソケット34が
直立している。このソケット34は外形がガスノズル6
の内径より小さく、その内径がコンタクトチップ1を挿
入可能な大きさであり、又このソケット34の内面上部
はコンタクトチップ1の上部多角形外周部1aが嵌合で
きる多角形穴が形成されている。
Reference numeral 31 is a mechanism for removing the contact tip 1, which is a detachable hollow rotary shaft 2 protruding from the upper base slope 7A.
A fixing portion 32 and a screw 33 are fixed to the tip of the fixing member 8, and a cylindrical socket 34 stands upright on the upper surface of the fixing portion 32. The outer shape of this socket 34 is the gas nozzle 6
The inner diameter of the socket 34 is smaller than the inner diameter of the contact tip 1, and the inner surface of the socket 34 is formed with a polygonal hole into which the upper polygonal outer peripheral portion 1a of the contact tip 1 can be fitted. .

【0013】取り外し中空回転軸28には、右ねじれは
すば歯車29が配してある。該はすば歯車29は、大径
の左ねじれはすば歯車27と噛み合って、その歯車軸2
4に一体的に取り付けられた小径の平歯車26と、アク
チュエータ10の駆動軸11に取り付けられた大径の平
歯車12と噛み合っている。取り外し中空回転軸28は
又、スプリング受け30及びスプリング受け板21との
間に介装したスプリング36により上方向に付勢されて
いる。
A right-handed helical gear 29 is arranged on the removable hollow rotary shaft 28. The helical gear 29 meshes with a large-diameter left-handed helical gear 27, and its gear shaft 2
The small-diameter spur gear 26 integrally attached to the gear 4 and the large-diameter spur gear 12 attached to the drive shaft 11 of the actuator 10 mesh with each other. The detached hollow rotary shaft 28 is also biased upward by a spring 36 interposed between the spring bearing 30 and the spring bearing plate 21.

【0014】37はコンタクトチップの取り付け機構で
構造は前記取り外し機構31と同形で、上部基坂7Aか
ら突き出した取り付け回転軸48の先端部にネジ33で
固定されている。回転軸48は一部中空で押し上げピン
23をスプリング25で上方向に付勢させている。取り
付け回転軸48には、前記はすば歯車29と同じ右ねじ
れはすば歯車50が付してあり、上記同様左ねじれはす
ば歯車27と噛み合っている。
Reference numeral 37 denotes a contact tip attachment mechanism, which has the same structure as the detachment mechanism 31 and is fixed by a screw 33 to the tip of the attachment rotation shaft 48 protruding from the upper base slope 7A. The rotary shaft 48 is partially hollow, and the push-up pin 23 is biased upward by a spring 25. The mounting rotary shaft 48 is provided with a right-handed helical gear 50, which is the same as the helical gear 29, and meshes with the left-handed helical gear 27 as described above.

【0015】次に、上記実施例の作用について説明す
る。動作順序としてはコンタクトチップの脱着時に障害
とならないように、まず、溶接ワイヤ4の先端を溶接ト
ーチの銃身3のコンタクトチップ取り付けネジ2以降に
引き戻し、コンタクトチップ1の取り外し及び取り付け
をし、溶接ワイヤ4を元に戻す順序となる。したがっ
て、ロボットで溶接トーチを切断機構13部に移動さ
せ、溶接ワイヤ先端に形成された球状凝固部を切断除去
し、溶接ワイヤの先端を溶接トーチの銃身3のコンタク
トチップ取り付けネジ2以降まで逆送する。次に、溶接
トーチを移動し、取り外し機構部31でコンタクトチッ
プを抜き取る。さらに溶接トーチを移動し、取り付け機
構部37で予めソケット28に挿入されてある新規のコ
ンタクトチップを取り付け、再度溶接トーチを切断機構
13部に移動し溶接ワイヤ先端をコンタクトチップ先端
より若干長めに送りだし切断して作業は終了する。コン
タクトチップ取り付け後溶接トーチを直接溶接場所に移
動して溶接作業に入り、ワイヤ先端の送りだし切断工程
を省略してもよい。
Next, the operation of the above embodiment will be described. As for the operation sequence, first, the tip of the welding wire 4 is pulled back to the contact tip attaching screw 2 and after of the barrel 3 of the welding torch, the contact tip 1 is removed and attached, and the welding wire is attached so as not to cause an obstacle when the contact tip is attached and detached. It becomes the order of returning 4 to the original. Therefore, the robot moves the welding torch to the cutting mechanism 13, cuts and removes the spherical solidified portion formed at the tip of the welding wire, and feeds the tip of the welding wire back to the contact tip mounting screw 2 and beyond of the barrel 3 of the welding torch. To do. Next, the welding torch is moved and the contact tip is pulled out by the removal mechanism section 31. Further, the welding torch is moved, a new contact tip previously inserted into the socket 28 is attached by the attachment mechanism section 37, the welding torch is again moved to the cutting mechanism section 13 and the tip of the welding wire is sent out slightly longer than the tip of the contact tip. Cut and finish the work. After attaching the contact tip, the welding torch may be moved directly to the welding place to start the welding operation, and the step of feeding and cutting the wire tip may be omitted.

【0016】溶接ワイヤ4の先端部を切断するには、ワ
イヤ切断機構13の上下のカットダイス17,19の小
孔18,20に溶接ワイヤ4の先端部を挿入した後、エ
アー駆動の揺動アクチュエータ10の駆動軸11を回動
すると、上下のカットダイス17,19の小孔18,2
0がクロスすることにより切断される。切断後、前記揺
動アクチュエータ10が逆回転して可動カットダイス1
9は元の位置に戻る。この場合、可動部15は揺動アク
チュエータ10の駆動軸11に固定されているため、元
位置での停止が確実に確保され、元位置での上下両カッ
トダイス17,19の各々の小孔18,20が正確に一
致する。
In order to cut the tip of the welding wire 4, the tip of the welding wire 4 is inserted into the small holes 18 and 20 of the upper and lower cutting dies 17 and 19 of the wire cutting mechanism 13, and then air driven swinging is performed. When the drive shaft 11 of the actuator 10 is rotated, the small holes 18, 2 of the upper and lower cut dies 17, 19 are formed.
It is cut when 0 crosses. After cutting, the swing actuator 10 rotates in the reverse direction to move the movable cutting die 1.
9 returns to the original position. In this case, since the movable portion 15 is fixed to the drive shaft 11 of the swing actuator 10, the stop at the original position is reliably ensured, and the small holes 18 of each of the upper and lower cutting dies 17 and 19 at the original position. , 20 exactly match.

【0017】銃身3からコンタクトチップ1を取り外す
には、コンカクトチップ1を抜き取り機構31のソケッ
ト34内に挿入し、スプリング36を圧縮するように押
し下げる。この押し下げにより右ねじれはすば歯車29
も押し下げられるが左ねじれ歯車27と噛み合っている
ため、右回転しながら押し下げられソケット部34が回
転して多角形穴がコンタクトチップ1の多角形外周部1
aと合一した時点で、スプリング36の弾発力により押
し上げられコンタクトチップ1にソケット部34が嵌合
される。押し下げによる嵌合が不十分な場合でも右ねじ
れはすば歯車29が回転させられる過程で生ずる軸方向
分力が上方向に作用し、スプリング36の弾発力に積算
されソケットは嵌合は確実になされる。このようにして
ソケット34を回転させればコンタクトチップ1は回動
してネジ部2が銃身3から外れ自重で中空孔35を通っ
て排出される。
To remove the contact tip 1 from the barrel 3, the contact tip 1 is inserted into the socket 34 of the extracting mechanism 31 and the spring 36 is pushed down so as to be compressed. By this pushing down, the right-hand helical gear 29
Although it is also pushed down, since it meshes with the left-hand helical gear 27, it is pushed down while rotating clockwise, the socket 34 rotates, and the polygonal hole forms the polygonal outer peripheral portion 1 of the contact tip 1.
When united with a, it is pushed up by the elastic force of the spring 36 and the socket portion 34 is fitted into the contact tip 1. Even if the fitting by pushing down is insufficient, the axial component force generated in the process of rotating the right-hand helical gear 29 acts upward, and is integrated with the elastic force of the spring 36, so that the socket is securely fitted. Done When the socket 34 is rotated in this manner, the contact tip 1 is rotated so that the screw portion 2 is disengaged from the barrel 3 and discharged through the hollow hole 35 by its own weight.

【0018】次に、上記古いコンタクトチップ1が除去
された銃身3に新しいコンタクトチップを取り付けるに
は、取り付け機構37のソケット38に新しいコンタク
トチップ1をそのネジ部2を上にしてに入れる。中空の
ソケット38の内部には押し上げピン23がスプリング
25により付勢されてあり、コンタクトチップ1を入れ
た時そのネジ部2がソケット38の先端より高くなるよ
うにしてある。そこで、該ソケット38上に溶接トーチ
を移動させ、ソケット38にガスノズル6を被嵌し、ガ
スノズル6内の銃身3の下端をソケット38内のコンタ
クトチップ1のネジ部2にスプリング25に坑して圧着
する。継いで回転軸48を締め付け方向に回転すると、
コンタクトチップ1のネジ部2が銃身3に螺合固定され
る。回転軸48は右ねじれはすば歯車50により前記歯
車29と同様に揺動アクチュエータ10により駆動され
るが軸方向には基台7a,7b間の回転軸48を太径に
してあるので動かない。
Next, in order to attach a new contact tip to the barrel 3 from which the old contact tip 1 has been removed, the new contact tip 1 is put into the socket 38 of the attachment mechanism 37 with its screw portion 2 facing upward. A push-up pin 23 is biased inside the hollow socket 38 by a spring 25 so that when the contact tip 1 is inserted, its screw portion 2 is higher than the tip of the socket 38. Therefore, the welding torch is moved onto the socket 38, the gas nozzle 6 is fitted into the socket 38, and the lower end of the barrel 3 in the gas nozzle 6 is recessed into the screw portion 2 of the contact tip 1 in the socket 38 by the spring 25. Crimp. Continuing on, if the rotating shaft 48 is rotated in the tightening direction,
The screw portion 2 of the contact tip 1 is screwed and fixed to the barrel 3. The rotary shaft 48 is driven by the right-handed helical gear 50 by the swing actuator 10 like the gear 29, but does not move in the axial direction because the rotary shaft 48 between the bases 7a and 7b has a large diameter. .

【0019】コンタクトチップ1を取り付けた後溶接ト
ーチを退去させ、揺動アクチュエータ10を元位置に戻
した時ソケット38の多角形穴の角位置が同位置になる
ため、ソケット38に新しいコンタクトチップ1を自動
的に入れ場合(本説明では省略)コンタクトチップ1の
多角形外周部1aの嵌合が容易である。
When the welding torch is withdrawn after mounting the contact tip 1 and the swing actuator 10 is returned to the original position, the angular position of the polygonal hole of the socket 38 becomes the same position, so that a new contact tip 1 is inserted in the socket 38. When the contact tip 1 is automatically inserted (this description is omitted), it is easy to fit the polygonal outer peripheral portion 1a of the contact tip 1.

【0020】[0020]

【発明の効果】本発明に係るコンタクトチップ取換え装
置は、溶接ワイヤ先端のワイヤ径より大きな球状凝固部
を切断削除し/コンタクトチップの取り付けネジ以降ま
で溶接ワイヤを逆送し/コンタクトチップを取り外し/
新しいコンタクトチップを取り付け/溶接ワイヤを送り
出す工程による。又、ワイヤ切断、コンタクトチップの
取り外し、取り付けをエアー駆動の揺動アクチュエータ
で行うため装置を小形にでき設置スペースを取らない。
さらに、コンタクトチップの多角形外周にソケットを装
着させるのにソケット回転用歯車をはすば歯車として回
転と軸方向の動きを活用したため、簡略で確実に装着で
きコンタクトチップ取換えの信頼を向上させた。以上の
ように本発明によればガスノズルを取り外すことなくコ
ンタクトチップの着脱を自動的に行うことができるので
ロボットによる連続溶接の無人化率を向上させる効果が
ある。
The contact tip changing device according to the present invention cuts and removes a spherical solidified portion having a diameter larger than the wire diameter at the tip of the welding wire, reversely feeds the welding wire up to the contact tip mounting screw and removes the contact tip /
By the process of attaching a new contact tip / sending out the welding wire. Also, since the wire cutting, contact tip removal, and attachment are performed by an air-driven swing actuator, the device can be made compact and does not occupy any installation space.
Furthermore, the socket rotation gear is used as a helical gear to mount the socket around the polygonal outer circumference of the contact tip, and the rotation and axial movement are utilized, so that the contact tip can be mounted easily and reliably and the reliability of contact tip replacement is improved. It was As described above, according to the present invention, the contact tip can be automatically attached and detached without removing the gas nozzle, so that there is an effect of improving the unmanned rate of continuous welding by the robot.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明コンタクトチップ取換え装置の正面図。FIG. 1 is a front view of a contact tip changing device of the present invention.

【図2】図1のIII−III線断面図。FIG. 2 is a sectional view taken along line III-III in FIG.

【図3】ワイヤ切断機構の説明図。FIG. 3 is an explanatory view of a wire cutting mechanism.

【図4】図1のII−II線断面図。FIG. 4 is a sectional view taken along line II-II of FIG.

【図5】コンタクトチップ着脱ソケットの斜視図。FIG. 5 is a perspective view of a contact tip attachment / detachment socket.

【図6】ワイヤ溶接トーチの先端部断面図。FIG. 6 is a sectional view of the tip of the wire welding torch.

【符号の説明】[Explanation of symbols]

1 コンタクトチップ 2 ネジブ 3 銃身 4 溶接ワイヤ 5 溶接ワイヤの通る細孔 6 ガスノズル 7 基台.取り付けボルト 10 エアー駆動の揺動アクチュエータ 11 駆動軸 12 大径の平歯車動 13 切断機構 14 ケース部 15 可働部 17 固定カットダイス 18 小孔 19 可動カットダイス 20 小孔 21 スプリング受板 22 排出孔 23 押し上ピン 24 歯車軸 25 スプリング 26 小径の平歯車 27 左ねじれはすば歯車 28 取り外し中空回転軸 29 右ねじれはすば歯車 30 スプリング受 31 取り外し機構 32 固定部 33 固定ネジ 34 ソケット部 35 中空孔 36 スプリング 37 取り付け機構 38 ソケット部 48 取り付け回転軸 50 右ねじれ角はすば歯車 1 Contact Tip 2 Screw Bushing 3 Barrel 4 Welding Wire 5 Pore Through Which Welding Wire 6 Gas Nozzle 7 Base. Mounting bolt 10 Air-driven swing actuator 11 Drive shaft 12 Large diameter spur gear movement 13 Cutting mechanism 14 Case part 15 Working part 17 Fixed cutting die 18 Small hole 19 Movable cutting die 20 Small hole 21 Spring receiving plate 22 Discharging hole 23 push-up pin 24 gear shaft 25 spring 26 small diameter spur gear 27 left-handed helical gear 28 hollow hollow rotating shaft 29 right-handed helical gear 30 spring receiver 31 removal mechanism 32 fixing part 33 fixing screw 34 socket part 35 hollow Hole 36 Spring 37 Attachment mechanism 38 Socket part 48 Attachment rotary shaft 50 Right helix angle Helical gear

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】溶接ワイヤ先端を切断する工程/該ワイヤ
を溶接トーチ銃身のコンタクトチップ取り付けネジ以降
まで逆送する工程/コンタクトチップを回転させ螺合を
外して溶接トーチ銃身から抜き取る工程/新しいコンタ
クトチップのネジ部先端を溶接トーチ銃身のネジ部に当
接しながら回転させ螺合し取り付ける工程からなるコン
タクトチップ取換え装置。
1. A step of cutting a tip of a welding wire / a step of feeding the wire backward to a contact tip mounting screw of a welding torch barrel / a step of rotating a contact tip to remove a screw from the welding torch barrel / a new contact A contact tip replacement device that consists of rotating and screwing the tip of the tip of the tip into contact with the thread portion of the barrel of the welding torch to attach the tip.
【請求項2】基台に固定した固定カットダイスと回転す
る可動カットダイスとにより溶接ワイヤを切断する回転
軸/コンタクトチップの多角形外周と同形の穴とノズル
内径より小いさな外径のソケットを有する、コンタクト
チップ抜き取りソケット用回転軸/抜き取り用と同形の
ソケットを有するコンタクトチップ装着用回転軸/とを
直接及び歯車で連結し、エアー駆動揺動アクチュエータ
で駆動させてなるコンタクトチップ取換え装置。
2. A socket having the same shape as a polygonal outer periphery of a rotating shaft / contact tip for cutting a welding wire by a fixed cutting die fixed to a base and a rotating movable cutting die and an outer diameter smaller than an inner diameter of a nozzle. Contact tip exchanging device having a rotary shaft for contact tip extracting socket / a rotary shaft for mounting contact tip / having a socket of the same shape as for extracting / connecting with a gear and driven by an air-driven swing actuator .
【請求項3】コンタクトチップの多角形外周が嵌合する
穴とノズル内径より小いさな外径のコンタクトチップ抜
き取りソケットを配した回転軸に、右ねじれ角はすば歯
車を配し、該歯車軸を軸方向に弾発保持する手段と、該
歯車を左ねじれ角はすば歯車を介してエアー駆動揺動ア
クチュエータで駆動させる手段とよりなるコンタクトチ
ップ抜き取り機構によるコンタクトチップ取換え装置。
3. A right-hand helix helical gear is arranged on a rotary shaft having a hole into which a polygonal outer periphery of a contact tip fits and a contact tip extracting socket having an outer diameter smaller than an inner diameter of a nozzle. A contact tip exchanging device using a contact tip extracting mechanism, which comprises means for elastically holding the shaft in the axial direction and means for driving the gear by an air-driven swing actuator via a helical gear having a left-handed helix angle.
JP35138893A 1993-12-15 1993-12-15 Device for changing contact chip Pending JPH07164147A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP35138893A JPH07164147A (en) 1993-12-15 1993-12-15 Device for changing contact chip

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP35138893A JPH07164147A (en) 1993-12-15 1993-12-15 Device for changing contact chip

Publications (1)

Publication Number Publication Date
JPH07164147A true JPH07164147A (en) 1995-06-27

Family

ID=18416954

Family Applications (1)

Application Number Title Priority Date Filing Date
JP35138893A Pending JPH07164147A (en) 1993-12-15 1993-12-15 Device for changing contact chip

Country Status (1)

Country Link
JP (1) JPH07164147A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007504003A (en) * 2003-08-29 2007-03-01 トレガスキス リミテッド Contact tip placement tool for welding devices
CN103286428A (en) * 2012-03-05 2013-09-11 株式会社神户制钢所 Contact pad replacement device and contact pad replacement method
JP6063014B1 (en) * 2015-08-31 2017-01-18 ファナック株式会社 Chuck device and robot for exchanging welding tips and nozzles
JP2022057238A (en) * 2020-09-30 2022-04-11 株式会社チップマン Contact tip fitting device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007504003A (en) * 2003-08-29 2007-03-01 トレガスキス リミテッド Contact tip placement tool for welding devices
CN103286428A (en) * 2012-03-05 2013-09-11 株式会社神户制钢所 Contact pad replacement device and contact pad replacement method
JP2013180343A (en) * 2012-03-05 2013-09-12 Kobe Steel Ltd Contact chip exchange device and contact chip exchange method
CN103286428B (en) * 2012-03-05 2015-10-21 株式会社神户制钢所 Contact chip is changing device and contact chip replacing options more
JP6063014B1 (en) * 2015-08-31 2017-01-18 ファナック株式会社 Chuck device and robot for exchanging welding tips and nozzles
US10005148B2 (en) 2015-08-31 2018-06-26 Fanuc Corporation Chuck device and robot for changing welding tip and nozzle
JP2022057238A (en) * 2020-09-30 2022-04-11 株式会社チップマン Contact tip fitting device

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