JPH0337822Y2 - - Google Patents
Info
- Publication number
- JPH0337822Y2 JPH0337822Y2 JP1985021431U JP2143185U JPH0337822Y2 JP H0337822 Y2 JPH0337822 Y2 JP H0337822Y2 JP 1985021431 U JP1985021431 U JP 1985021431U JP 2143185 U JP2143185 U JP 2143185U JP H0337822 Y2 JPH0337822 Y2 JP H0337822Y2
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- pair
- hole
- cylinder device
- supply member
- 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 36
- 239000004020 conductor Substances 0.000 claims description 19
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 21
- 229910052802 copper Inorganic materials 0.000 description 21
- 239000010949 copper Substances 0.000 description 21
- 238000000034 method Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000005493 welding type Methods 0.000 description 1
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は、ロボツト等により被溶接物の溶接部
まで移動させ、一対の電極間に被溶接物を挾持し
て溶接を行なうようにした溶接ガンユニツトに関
するものである。[Detailed description of the invention] (Field of industrial application) This invention is a welding method in which a robot or the like moves the workpiece to the welding part and holds the workpiece between a pair of electrodes to perform welding. It concerns the gun unit.
（従来の技術）
従来、この種の溶接ガンユニツトは、溶接トラ
ンスを内装した本体フレームに、一対の電極およ
び加圧機等を装備してなる可動フレームを、一対
のガイドバーを介して被溶接物へ向けて進退自在
に支持したものが用いられている。そして前記溶
接トランスの一対の２次側端子が、加圧シリンダ
装置の軸線の両側に配設され、この一対の２次側
端子とこれに対応する一対の電極とは、可撓性の
２次側導体であるオンス銅板を介して接続された
構造となつている。しかし、この構造では、一対
の２次側端子が加圧シリンダ装置の軸線の両側に
配設されているので、この溶接ガンユニツトの２
次側端子側のフトコロ寸法が大きくなるため、２
次側インピーダンスが大きくなる。これにより、
２次側の出力定格の低下、すなわち使用効率の低
下が余儀なくされるという問題が生じた。このよ
うな問題を解決するために、本願出願人より、実
願昭59−085410号に示すような溶接ガンユニツト
が案出されている。これは、第３図で示すよう
に、この溶接ガンユニツト１は可動フレーム２に
固着した一対の腕部材３の間に対向して配設した
一対の電極チツプ３，４と、この一対の電極チツ
プの一方３をシヤンク５を介して装着し、かつ可
動フレーム２に固着した加圧シリンダ装置６のピ
ストンロツドと連結した第１給電部材である給電
ホルダ７と、前記一対の電極チツプの他方４を装
着し、前記一対の腕部材３に支持された第２給電
部材であるＬ字状給電アーム８とを備え、前記給
電ホルダ７およびＬ字状給電アーム８とを溶接ト
ランス９の一側面に設けた一対の２次側端子１
０，１１にそれぞれ個々に接続する可撓性の２次
側導体であるオンス銅板１２，１３が設けられて
いる。そして、これら全ては、前記加圧シリンダ
装置の軸線を通る同一垂直面内に配置されること
によりフトコロ寸法を少さくし使用効率の低下を
防いでいる。(Prior art) Conventionally, this type of welding gun unit has a movable frame, which is made up of a main body frame containing a welding transformer and equipped with a pair of electrodes, a pressurizer, etc., to the workpiece through a pair of guide bars. Supports that can move forward and backward are used. A pair of secondary terminals of the welding transformer are arranged on both sides of the axis of the pressurizing cylinder device, and the pair of secondary terminals and the corresponding pair of electrodes are connected to a flexible secondary terminal. The structure is such that they are connected via an ounce copper plate as a side conductor. However, in this structure, the pair of secondary side terminals are arranged on both sides of the axis of the pressurizing cylinder device, so the two terminals of the welding gun unit are
Since the foot roller dimension on the next terminal side becomes larger, 2
Next-side impedance increases. This results in
A problem arose in that the output rating of the secondary side was forced to decline, that is, the usage efficiency was forced to decline. In order to solve these problems, the applicant of the present invention has devised a welding gun unit as shown in Utility Model Application No. 59-085410. As shown in FIG. 3, this welding gun unit 1 has a pair of electrode tips 3 and 4 disposed facing each other between a pair of arm members 3 fixed to a movable frame 2; 3 is attached via the shank 5, and a power supply holder 7, which is a first power supply member connected to the piston rod of the pressurizing cylinder device 6 fixed to the movable frame 2, and the other 4 of the pair of electrode chips are attached. and an L-shaped power supply arm 8 that is a second power supply member supported by the pair of arm members 3, and the power supply holder 7 and the L-shaped power supply arm 8 are provided on one side of the welding transformer 9. A pair of secondary side terminals 1
Ounce copper plates 12 and 13, which are flexible secondary conductors, are provided which are individually connected to terminals 0 and 11, respectively. All of these are arranged in the same vertical plane passing through the axis of the pressurizing cylinder device, thereby reducing the size of the armrest and preventing a decrease in usage efficiency.
（考案が解決しようとする問題点）
しかし、このような構成の溶接ガンユニツトで
は、上記構成部品を組立手順に従つて順次組立て
られ構成されているために、給電ホルダ７と溶接
トランスの一対の２次側端子の一方１０とを接続
するオンス銅板１２は、前記構成部品の奥まつた
狭いフトコロ内に配設されることとなり、一旦組
立ててしまうと、他の部品を除去しなければ、こ
のオンス銅板を取り外すことができず、オンス銅
板の取り外し作業が困難なものとなつている。こ
れにより時間が多くかかり、溶接ガンユニツトの
維持費が高くなるという問題が生じていた。(Problem to be Solved by the Invention) However, in the welding gun unit having such a configuration, since the above-mentioned components are assembled sequentially according to the assembly procedure, the power supply holder 7 and the pair of welding transformers are The ounce copper plate 12 that connects to one of the next terminals 10 is placed in a narrow foot space deep inside the component, and once assembled, unless other parts are removed, the ounce copper plate 12 The copper plate cannot be removed, making it difficult to remove the ounce copper plate. This has caused problems in that it takes a lot of time and increases the maintenance cost of the welding gun unit.
本考案は、上記問題点を解消し、他の構成部品
に影響を及ぼすことなく極めて容易にオンス銅板
を着脱することのできる溶接ガンユニツトを提供
することを目的とするものである。 The object of the present invention is to solve the above-mentioned problems and provide a welding gun unit in which an ounce copper plate can be attached and detached extremely easily without affecting other components.
（問題点を解決するための手段）
本考案は、上記問題点を解決するための手段と
して、溶接トランスを固着した固定フレームと、
該固定フレームに摺動自在に支持され、一対の電
極が相対向して配設された可動フレームと、該可
動フレームに固着した加圧シリンダ装置と、前記
一対の電極の一方を装着し、かつ前記加圧シリン
ダ装置のピストンロツドと絶縁部材を介して連結
した第１給電部材と、前記一対の電極の他方を装
着し、かつ前記加圧シリンダ装置のシリンダ本体
に腕部材を介して固着した第２給電部材とを備
え、前記溶接トランスの一側面に前記加圧シリン
ダ装置の軸線を通る垂直面内に上下方向に互いに
相対するように配設した一対の２次側端子の下側
端子と前記第２給電部材とを可撓性の２次側導体
を介して接続し、前記一対の２次側端子の上側端
子にねじ孔を設け、前記第１給電部材にドライバ
ー挿入可能な貫通孔を設け、該貫通孔と前記ねじ
孔とは前記シリンダ装置の軸線を通る同一垂直面
内で同一方向にそれぞれ穿設されると共に可撓性
の２次側導体の一端を前記ねじ孔を介して前記上
側端子に電気的に接続し、他端を前記貫通孔を介
して第１給電部材に電気的に接続したことを特徴
とするものである。(Means for Solving the Problems) The present invention provides a fixed frame to which a welding transformer is fixed, as a means for solving the above problems.
a movable frame that is slidably supported by the fixed frame and has a pair of electrodes disposed opposite to each other, a pressurizing cylinder device fixed to the movable frame, and one of the pair of electrodes mounted thereon; a first power supply member connected to the piston rod of the pressure cylinder device via an insulating member; and a second power supply member to which the other of the pair of electrodes is attached and fixed to the cylinder body of the pressure cylinder device via an arm member. a lower terminal of a pair of secondary terminals disposed on one side of the welding transformer so as to face each other in the vertical direction in a vertical plane passing through the axis of the pressurizing cylinder device; A second power supply member is connected via a flexible secondary conductor, a screw hole is provided in the upper terminal of the pair of secondary terminals, and a through hole into which a screwdriver can be inserted is provided in the first power supply member, The through hole and the screw hole are respectively bored in the same direction in the same vertical plane passing through the axis of the cylinder device, and one end of the flexible secondary conductor is inserted through the screw hole into the upper terminal. It is characterized in that the other end is electrically connected to the first power supply member through the through hole.
（作 用）
このような構成とすれば、第１給電部材と上側
端子とを接続している２次側導体を取り外す場合
は、まず、第１給電部材に貫通孔を介して接続し
ている２次側導体をはずして除去し、第１給電部
材と２次側導体の接続を解除する。次に、加圧シ
リンダのピストンロツドを手動にて移動させて貫
通孔が上側端子のねじ孔の真上にくるようにす
る。貫通孔をねじ孔の真上きたら、この貫通孔か
らドライバーを挿入して上側端子と２次側導体の
接続を解除する。このように第１給電部材の貫通
孔を利用すれば溶接ガンユニツトへの２次側導体
の着脱が可能となる。(Function) With this configuration, when removing the secondary conductor that connects the first power supply member and the upper terminal, first remove the secondary conductor that is connected to the first power supply member through the through hole. The secondary conductor is disconnected and removed, and the connection between the first power supply member and the secondary conductor is released. Next, manually move the piston rod of the pressurizing cylinder so that the through hole is directly above the screw hole of the upper terminal. Once the through hole is directly above the screw hole, insert a screwdriver through the through hole to disconnect the upper terminal and the secondary conductor. In this way, by using the through hole of the first power supply member, it becomes possible to attach and detach the secondary conductor to and from the welding gun unit.
（実施例）
以下、本考案の一実施例を第１図及び第２図に
基づいて説明する。(Example) Hereinafter, an example of the present invention will be described based on FIGS. 1 and 2.
１４は溶接ガンユニツト、１５は溶接ガンユニ
ツト１４の固定フレームで、この固定フレーム１
５には、溶接トランス１６が固着している。固定
フレーム１５の前方側（第１図におけるＡ方向
側）には可動フレーム１７が配設されている。こ
の可動フレーム１７は、固定フレーム１５Ａ−
A′方向に摺動自在に嵌合した一対のガイドバー
１８，１８に固着、支持されている。１９は加圧
シリンダ本体で可動フレーム１７に固着してい
る。また、加圧シリンダのピストンロツド２０に
は、絶縁部材を介して給電ホルダ（第１給電部
材）２１の一端を連結し、かつこの給電ホルダ２
１の他端にはアジヤスタ２２を介してシヤンク２
３が装着しており、このシヤンク２３の先端には
一対の電極チツプ２４，２５の一方の電極チツプ
２４が装着している。また、他方の電極チツプ２
５は、可動フレーム１７に固着した一対のヨーク
（腕部材）２６を介して設けられているＬ字状給
電アーム（第２給電部材）２７の先端に装着して
いる。 14 is a welding gun unit, 15 is a fixed frame of the welding gun unit 14, and this fixed frame 1
A welding transformer 16 is fixed to 5. A movable frame 17 is disposed in front of the fixed frame 15 (in the direction A in FIG. 1). This movable frame 17 is a fixed frame 15A-
It is fixed and supported by a pair of guide bars 18, 18 fitted so as to be slidable in the A' direction. Reference numeral 19 denotes a pressurizing cylinder body which is fixed to the movable frame 17. Further, one end of a power supply holder (first power supply member) 21 is connected to the piston rod 20 of the pressurizing cylinder via an insulating member, and this power supply holder 2
A shank 2 is connected to the other end of 1 via an adjuster 22.
3 is attached, and one electrode tip 24 of a pair of electrode tips 24, 25 is attached to the tip of this shank 23. Also, the other electrode chip 2
5 is attached to the tip of an L-shaped power supply arm (second power supply member) 27 provided via a pair of yokes (arm members) 26 fixed to the movable frame 17.
前記溶接トランス１６の一側面には、一対の２
次側端子２８，２９が上下位置になるように設け
られている。３０，３１は、この２次側端子２
８，２９と給電ホルダ２１およびＬ字状給電アー
ム２７をそれぞれ接続するオンス銅板（可撓性の
２次側導体）である。 On one side of the welding transformer 16, a pair of two
The next terminals 28 and 29 are provided in vertical positions. 30 and 31 are this secondary side terminal 2
8 and 29, the power supply holder 21, and the L-shaped power supply arm 27, respectively, are ounce copper plates (flexible secondary conductors).
ここでオンス銅板３０，３１の接続構造につい
て説明する。溶接トランス１６の２次側端子２８
および給電ホルダ２１には、加圧シリンダのピス
トンロツド２０の軸線を通る垂直面内の鉛直方向
に、ネジ孔３２および貫通孔３３が設けられてい
る。このネジ孔３２には、オンス銅板３０の一端
の貫通孔３４に挿入したボルト３５を螺着させ
る。給電ホルダ２１に設けられた貫通孔３３に
は、ボルト３６を挿入し、オンス銅板３０の他端
に固着したブツシユ３７の内側に刻設されたネジ
部に螺着させる。こうしてオンス銅板３０は、溶
接トランス１６の２次側端子２８と給電ホルダ２
１の接続をすることになる。 Here, the connection structure of the ounce copper plates 30 and 31 will be explained. Secondary terminal 28 of welding transformer 16
The power supply holder 21 is provided with a screw hole 32 and a through hole 33 in a vertical direction within a vertical plane passing through the axis of the piston rod 20 of the pressurizing cylinder. A bolt 35 inserted into the through hole 34 at one end of the ounce copper plate 30 is screwed into the screw hole 32 . A bolt 36 is inserted into the through hole 33 provided in the power supply holder 21 and screwed into a threaded portion carved inside a bush 37 fixed to the other end of the ounce copper plate 30. In this way, the ounce copper plate 30 connects the secondary terminal 28 of the welding transformer 16 and the power supply holder 2.
1 connection will be made.
同様に、溶接トランス１６の２次側端子２９に
はネジ孔（図示せず）を、またＬ字状給電アーム
２７の２次側導体取付部３８には貫通孔（図示せ
ず）を加圧シリンダのピストンロツド２０の軸線
を通る垂直面内の水平方向にそれぞれ設け、この
ネジ孔には、オンス銅板３１の一端に設けられた
貫通孔（図示せず）に挿入したボルト３９を螺着
させる。また２次側導体取付部３８に設けた貫通
孔には、ボルト４０を挿入し、オンス銅板３１の
他端に固着したブツシユ４１の内側に刻設された
ネジ部に螺着させる。これによりオンス銅板３１
も、溶接トランス１６の２次側端子２９とＬ字状
給電アーム２７とを接続することになる。 Similarly, a screw hole (not shown) is provided in the secondary terminal 29 of the welding transformer 16, and a through hole (not shown) is provided in the secondary conductor attachment portion 38 of the L-shaped power supply arm 27. A bolt 39 inserted into a through hole (not shown) provided at one end of the ounce copper plate 31 is screwed into each screw hole, which is provided horizontally in a vertical plane passing through the axis of the piston rod 20 of the cylinder. Further, a bolt 40 is inserted into a through hole provided in the secondary conductor attachment portion 38 and screwed into a threaded portion carved inside a bush 41 fixed to the other end of the ounce copper plate 31. As a result, the ounce copper plate 31
Also, the secondary side terminal 29 of the welding transformer 16 and the L-shaped power supply arm 27 are connected.
次に、給電ホルダ２１と溶接トランス１６の上
側の２次側端子２８とを接続しているオンス銅板
３０の取り外し方法について説明する。 Next, a method for removing the ounce copper plate 30 connecting the power supply holder 21 and the upper secondary terminal 28 of the welding transformer 16 will be described.
まず、加圧シリンダ１９の作動油を停止し、加
圧シリンダのピストンロツド２０をフリーの状態
にする。次にドライバーにてボルト３６をはずし
て除去し、給電ホルダ２１とオンス銅板３０の接
続を解除する。給電ホルダ２１からボルト３６を
除去すると、手動にて加圧シリンダのピストンロ
ツド２０を動かして給電ホルダ２１の貫通孔３３
がボルト３５の真上になるようにする。貫通孔３
３がボルト３５の真上になると、この貫通孔３３
からドライバーを挿入してボルト３５をはずして
除去し、オンス銅板３０と溶接トランス１６の上
側の２次側端子２８の接続を解除する。最後に、
溶接ガンユニツト１４のフトコロからオンス銅板
３０を取り出せばよい。また、オンス銅板３０を
取り付ける場合には、上記の手順を逆に行なえば
よい。 First, the hydraulic oil in the pressurized cylinder 19 is stopped, and the piston rod 20 of the pressurized cylinder is made free. Next, the bolt 36 is removed using a screwdriver to disconnect the power supply holder 21 and the ounce copper plate 30. When the bolt 36 is removed from the power supply holder 21, the piston rod 20 of the pressure cylinder is manually moved to open the through hole 33 of the power supply holder 21.
so that it is directly above the bolt 35. Through hole 3
3 is directly above the bolt 35, this through hole 33
The bolt 35 is removed by inserting a screwdriver, and the connection between the ounce copper plate 30 and the upper secondary terminal 28 of the welding transformer 16 is released. lastly,
The ounce copper plate 30 can be taken out from the foot of the welding gun unit 14. Moreover, when attaching the ounce copper plate 30, the above procedure may be performed in reverse.
（考案の効果）
本考案は、以上説明したように構成したものな
ので、第１給電部材と、一対の２次側端子の上側
端子とを接続している２次側導体を取り外す際
は、第１給電部材と２次側導体の接続を解除した
後に表れる第１給電部材のドライバー挿入可能な
貫通孔から上側端子と２次側導体の接続を解除す
ることができる。したがつて、フトコロ寸法を小
さくして２次側インピーダンスの低減を図つた溶
接ガンユニツトにおいても狭いフトコロに配設さ
れている２次側導体を、他の部品をはずすことな
く容易に着脱することができる。また、このよう
に着脱が容易になるとメンテナンスも容易となり
溶接ガンユニツトの維持費を低減さすこともでき
る。(Effects of the invention) Since the invention is configured as explained above, when removing the secondary conductor connecting the first power feeding member and the upper terminal of the pair of secondary terminals, the The connection between the upper terminal and the secondary conductor can be disconnected from the through hole in the first power supply member that appears after the connection between the first power supply member and the secondary conductor can be inserted, into which a driver can be inserted. Therefore, even in a welding gun unit that aims to reduce the secondary impedance by reducing the diameter of the arm, the secondary conductor disposed in the narrow arm can be easily attached and removed without removing other parts. can. Furthermore, when the welding gun unit is easily attached and detached, maintenance is also facilitated, and maintenance costs for the welding gun unit can be reduced.
第１図は、本考案の一実施例を示す一部切欠き
正面図、第２図は、第１図の左側面図、第３図
は、従来の溶接ガンユニツトの一例を示す正面図
である。
１４……溶接ガンユニツト、１５……固定フレ
ーム、１６……溶接トランス、１７……可動フレ
ーム、１９……加圧シリンダ、２１……給電ホル
ダ、２４，２５……電極チツプ、２６……ヨーク
（腕部材）、２７……Ｌ字状給電アーム、２８，２
９……２次側端子、３０，３１……オンス銅板、
３２……ネジ孔、３３，３４……貫通孔、３５，
３６，３９，４０……ボルト、３７，４１……ブ
ツシユ。
Fig. 1 is a partially cutaway front view showing an embodiment of the present invention, Fig. 2 is a left side view of Fig. 1, and Fig. 3 is a front view showing an example of a conventional welding gun unit. . 14... Welding gun unit, 15... Fixed frame, 16... Welding transformer, 17... Movable frame, 19... Pressure cylinder, 21... Power supply holder, 24, 25... Electrode chip, 26... Yoke ( arm member), 27... L-shaped power supply arm, 28, 2
9...Secondary side terminal, 30,31...oz copper plate,
32...Screw hole, 33, 34...Through hole, 35,
36, 39, 40... Bolt, 37, 41... Butsuyu.
Claims (1)
定フレームに摺動自在に支持され、一対の電極が
相対向して配設された可動フレームと、該可動フ
レームに固着した加圧シリンダ装置と、前記一対
の電極の一方を装着し、かつ前記加圧シリンダ装
置のピストンロツドと絶縁部材を介して連結した
第１給電部材と、前記一対の電極の他方を装着
し、かつ前記加圧シリンダ装置のシリンダ本体に
腕部材を介して固着した第２給電部材とを備え、
前記溶接トランスの一側面に前記加圧シリンダ装
置の軸線を通る垂直面内に上下方向に互いに相対
するように配設した一対の２次側端子の下側端子
と前記第２給電部材とを可撓性の２次側導体を介
して接続し、前記一対の２次側端子の上側端子に
ねじ孔を設け、前記第１給電部材にドライバー挿
入可能な貫通孔を設け、該貫通孔と前記ねじ孔と
は前記シリンダ装置の軸線を通る同一垂直面内で
同一方向にそれぞれ穿設されると共に可撓性の２
次側導体の一端を前記ねじ孔を介して前記上側端
子に電気的に接続し、他端を前記貫通孔を介して
第１給電部材に電気的に接続したことを特徴とす
る溶接ガンユニツト。 a fixed frame to which a welding transformer is fixed; a movable frame slidably supported by the fixed frame and having a pair of electrodes facing each other; a pressure cylinder device fixed to the movable frame; a first power supply member to which one of the electrodes of the pair is attached and connected to the piston rod of the pressurizing cylinder device via an insulating member; and a first power feeding member to which the other of the pair of electrodes is attached and connected to the cylinder body of the pressurizing cylinder device and a second power supply member fixed via the arm member,
A pair of lower terminals of a pair of secondary terminals disposed on one side of the welding transformer to face each other in the vertical direction in a vertical plane passing through the axis of the pressurizing cylinder device and the second power supply member are connected to each other. A screw hole is provided in the upper terminal of the pair of secondary terminals, a through hole into which a screwdriver can be inserted is provided in the first power supply member, and the through hole and the screw are connected via a flexible secondary conductor. The holes are two flexible holes that are bored in the same direction in the same vertical plane passing through the axis of the cylinder device.
A welding gun unit characterized in that one end of the next conductor is electrically connected to the upper terminal through the screw hole, and the other end is electrically connected to the first power supply member through the through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985021431U JPH0337822Y2 (en) | 1985-02-18 | 1985-02-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985021431U JPH0337822Y2 (en) | 1985-02-18 | 1985-02-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61138475U JPS61138475U (en) | 1986-08-28 |
| JPH0337822Y2 true JPH0337822Y2 (en) | 1991-08-09 |
Family
ID=30512818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985021431U Expired JPH0337822Y2 (en) | 1985-02-18 | 1985-02-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0337822Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS614886B2 (en) * | 1981-08-20 | 1986-02-14 | Kawasaki Steel Co |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS614886U (en) * | 1984-06-08 | 1986-01-13 | 鬼頭工業株式会社 | welding gun unit |
-
1985
- 1985-02-18 JP JP1985021431U patent/JPH0337822Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS614886B2 (en) * | 1981-08-20 | 1986-02-14 | Kawasaki Steel Co |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61138475U (en) | 1986-08-28 |
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