JP2007050450A - Resistance welding equipment - Google Patents
Resistance welding equipment Download PDFInfo
- Publication number
- JP2007050450A JP2007050450A JP2005239174A JP2005239174A JP2007050450A JP 2007050450 A JP2007050450 A JP 2007050450A JP 2005239174 A JP2005239174 A JP 2005239174A JP 2005239174 A JP2005239174 A JP 2005239174A JP 2007050450 A JP2007050450 A JP 2007050450A
- Authority
- JP
- Japan
- Prior art keywords
- welding
- resistance
- electrode
- resistance welding
- current supply
- 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
- 238000003466 welding Methods 0.000 title claims abstract description 271
- 238000010586 diagram Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Resistance Welding (AREA)
Abstract
Description
本発明は抵抗溶接装置に関するものである。 The present invention relates to a resistance welding apparatus.
抵抗溶接装置には、片側からスポット溶接を行うものとしてシリーズスポット溶接と、インダイレクトスポット溶接がある。 Resistance welding devices include spot welding from one side and series spot welding and indirect spot welding.
シリーズスポット溶接は、図６に示すように、ワーク１００の片側から一対の溶接電極１０１、１０２を加圧接触させ、あらかじめ設定しておいた所定の加圧力に到達すると、溶接電流を供給する溶接電流供給装置１０３により通電を開始し、ワーク１００間の電気抵抗により金属を発熱させ、一対の溶接電極１０１、１０２で加圧した部位にそれぞれナゲット１０４、１０５を形成するものである。一対の溶接電極１０１、１０２は、図示は省略するが、例えば、ロボットアームの先端に、左右一対に取り付けたエアシリンダの先端に取り付けている。また、一般的に、シリーズスポット溶接では、左右の溶接電極の相互間で、通電させるエネルギのバランスを良くして、一対の溶接電極１０１、１０２で加圧した部位にそれぞれ均等なナゲット１０４、１０５を形成するため、溶接電流として交流電流を使用している。 In the series spot welding, as shown in FIG. 6, a pair of welding electrodes 101 and 102 are brought into pressure contact from one side of the workpiece 100, and when a predetermined pressurizing force set in advance is reached, a welding current is supplied. Energization is started by the current supply device 103, the metal is heated by the electrical resistance between the workpieces 100, and the nuggets 104 and 105 are formed in the portions pressurized by the pair of welding electrodes 101 and 102, respectively. Although not shown, the pair of welding electrodes 101 and 102 are attached, for example, to the tip of a robot arm and the tip of an air cylinder attached to the pair of left and right. Further, in general, in series spot welding, the balance of energy to be energized is improved between the left and right welding electrodes, and the nuggets 104 and 105 that are equal to the parts pressurized by the pair of welding electrodes 101 and 102 are respectively provided. Therefore, an alternating current is used as a welding current.
また、インダイレクトスポット溶接は、図７に示すように、溶接電極２０１をワーク２００が重なり、溶接をする部位に加圧接触させ、他方、アース２０２を設置する。そして、ワークを加圧した溶接電極２０１の加圧力が、あらかじめ設定しておいた所定の加圧力に到達すると、溶接電流供給装置２０３よりアース２０２と溶接電極２０１に溶接電流を通電する。これにより、溶接電極２０１で加圧した部位で金属を発熱させ、ナゲットを形成するものである。 Further, in indirect spot welding, as shown in FIG. 7, the welding electrode 201 is brought into pressure contact with the part to be welded and the workpiece 200 is welded, and the ground 202 is installed. When the applied pressure of the welding electrode 201 that pressurizes the work reaches a predetermined applied pressure set in advance, the welding current is supplied to the ground 202 and the welding electrode 201 from the welding current supply device 203. As a result, the metal is heated at the portion pressurized by the welding electrode 201 to form a nugget.
インダイレクトスポット溶接では、溶接用の電極が１つであるので、溶接負荷を低減し、溶接トランスの容量を小さくするため、直流電流で通電している。 In indirect spot welding, since there is one electrode for welding, in order to reduce the welding load and to reduce the capacity of the welding transformer, a direct current is applied.
なお、図７に示したインダイレクトスポット溶接を行う抵抗溶接装置は、治具を用いて多数のアース２０２を施工したものであるが、一対の溶接電極のうち、一方をアース電極とし、他方の溶接電極でインダイレクトスポット溶接を行うように構成してもよい。 In addition, although the resistance welding apparatus which performs indirect spot welding shown in FIG. 7 constructs many earth | grounds 202 using a jig | tool, one is made into an earth electrode among a pair of welding electrodes, and the other is carried out. You may comprise so that indirect spot welding may be performed with a welding electrode.
なお、シリーズスポット溶接については、例えば、特開２００２−２３９７４２号公報（特許文献１）に開示されており、インダイレクトスポット溶接については、例えば、２００２−２６３８４８号公報（特許文献２）に開示されている。
通常平板上に用いるシリーズスポット溶接では、２本の電極を平行に配しているため、それをそのまま用いると、屈曲した面では屈曲した一方の側面と他方の側面の両方同時に電極を当てることができず、屈曲した面の溶接を行う場合には、溶接ヘッドを取り替えるなどを行う必要が生じる。 In series spot welding, which is usually used on a flat plate, two electrodes are arranged in parallel, so if they are used as they are, it is possible to apply the electrode to both the bent side and the other side at the same time. However, when welding a bent surface, it is necessary to replace the welding head.
また、インダイレクトスポット溶接では、インダイレクトスポット溶接用電極を移動させて、多数、打点することができるが、この場合、アースが固定されていると、アースに多回数、電流が通電するため、鋼板に焼けが生じる場合がある。このため、インダイレクトスポット溶接用電極を移動させて、多数、打点する場合にはアースの数を増やすことが望ましいが、治具側でアースを施工するには作業工数が増え、作業性が悪くなる。 In indirect spot welding, the indirect spot welding electrode can be moved to make a large number of dots, but in this case, if the ground is fixed, the current is passed through the ground many times. The steel sheet may be burned. For this reason, it is desirable to increase the number of grounds when moving the indirect spot welding electrode to make a large number of dots. However, in order to perform grounding on the jig side, the number of work steps increases and workability is poor. Become.
また、ワークに片側溶接を行う場合において、通常のシリーズスポット溶接やインダイレクトスポット溶接を行う溶接装置で、シリーズスポット溶接やインダイレクトスポット溶接を行えない部位は限られているが、その限られた部位の溶接をするために特別な専用の溶接装置を設けるのは効率的ではない。 In addition, when performing single-side welding on a workpiece, there are limited parts that cannot perform series spot welding or indirect spot welding with a welding device that performs ordinary series spot welding or indirect spot welding. It is not efficient to provide a special dedicated welding device for welding the parts.
本発明に係る抵抗溶接装置は、溶接電極を備えた複数の抵抗溶接機と、複数の抵抗溶接機に溶接電流を供給する溶接電流供給装置と、複数の抵抗溶接機のうち、一の抵抗溶接機の溶接電極をインダイレクト溶接電極として用い、他の抵抗溶接機の溶接電極をアース電極として用いるように、複数の抵抗溶接機と溶接電流供給装置を制御する制御装置とを備えている。 A resistance welding apparatus according to the present invention includes a plurality of resistance welding machines provided with welding electrodes, a welding current supply apparatus that supplies welding current to the plurality of resistance welding machines, and one resistance welding machine among the plurality of resistance welding machines. A plurality of resistance welding machines and a control device for controlling the welding current supply device are provided so that the welding electrode of the machine is used as the indirect welding electrode and the welding electrode of another resistance welding machine is used as the ground electrode.
また、他の形態として、溶接電極と、溶接電極に対して溶接電流を供給する溶接電流供給装置とを備えた抵抗溶接機を複数備え、複数の抵抗溶接機のうち、一の抵抗溶接機の溶接電流供給装置を、他の抵抗溶接機の溶接電極にも溶接電流を供給できるように構成し、かつ、一の溶接電極をインダイレクト溶接電極として用い、他の溶接電極をアース電極として用いるように各抵抗溶接機および一の抵抗溶接機の溶接電流供給装置を制御する制御装置とを備えたものとしてもよい。 Moreover, as another form, it is equipped with two or more resistance welding machines provided with the welding electrode and the welding current supply apparatus which supplies a welding current with respect to a welding electrode, Of several resistance welding machines, one resistance welding machine The welding current supply device is configured so that the welding current can be supplied to the welding electrode of another resistance welding machine, and one welding electrode is used as an indirect welding electrode and the other welding electrode is used as a ground electrode. And a control device for controlling the welding current supply device of each resistance welder and one resistance welder.
斯かる抵抗溶接装置によれば、一の抵抗溶接機の溶接電極をインダイレクト溶接電極として用い、他の抵抗溶接機の溶接電極をアース電極として用いるので、新たに治具にアースを施工することなく多種多様な箇所に片側溶接を施すことができ、新たな設備投資を抑えることができる。 According to such a resistance welding apparatus, since the welding electrode of one resistance welding machine is used as an indirect welding electrode and the welding electrode of another resistance welding machine is used as a grounding electrode, a new grounding is applied to the jig. One-side welding can be applied to a wide variety of locations, and new capital investment can be suppressed.
以下、本発明の一実施形態に係る抵抗溶接装置を図面に基づいて説明する。 Hereinafter, a resistance welding apparatus according to an embodiment of the present invention will be described with reference to the drawings.
この抵抗溶接装置１は、図１に示すように、複数（図示例では２つ）の抵抗溶接機２、３と、複数の抵抗溶接機２、３に対して溶接電流を供給する溶接電流供給装置４と、制御装置５を備えている。 As shown in FIG. 1, the resistance welding apparatus 1 includes a plurality (two in the illustrated example) of resistance welding machines 2 and 3 and a welding current supply that supplies a welding current to the plurality of resistance welding machines 2 and 3. A device 4 and a control device 5 are provided.
抵抗溶接機２、３はロボットアーム１１、１２の先端に左右一対のエアシリンダ１３〜１６を取り付け、エアシリンダ１３〜１６の先端にそれぞれ溶接電極１７〜２０を取り付けている。 In the resistance welders 2 and 3, a pair of left and right air cylinders 13 to 16 are attached to the tips of the robot arms 11 and 12, and welding electrodes 17 to 20 are attached to the tips of the air cylinders 13 to 16, respectively.
また、この実施形態では、抵抗溶接機２、３毎に溶接電流を供給する溶接電流供給装置２１、２２を備えている。溶接電流供給装置２１、２２は、図示は省略するが、タイマコンタクタやトランスなどを備えており、抵抗溶接機２、３の一対の溶接電極１７〜２０に所望の溶接電流を供給するようになっている。各抵抗溶接機２、３は、図２に示すように、それぞれ独立してシリーズスポット溶接を行えるように構成されており、この際、各抵抗溶接機２、３の溶接電流供給装置２１、２２はそれぞれ左右一対の溶接電極１７〜２０に溶接電流として交流を供給する。 Moreover, in this embodiment, the welding current supply apparatuses 21 and 22 which supply a welding current for each resistance welding machine 2 and 3 are provided. Although not shown, the welding current supply devices 21 and 22 include a timer contactor, a transformer, and the like, and supply a desired welding current to the pair of welding electrodes 17 to 20 of the resistance welding machines 2 and 3. ing. As shown in FIG. 2, each resistance welder 2, 3 is configured to perform series spot welding independently. At this time, the welding current supply devices 21, 22 of each resistance welder 2, 3 are configured. Supplies alternating current as a welding current to the pair of left and right welding electrodes 17-20.
また、この抵抗溶接装置１は、図１に示すように、別途、溶接電流供給装置４を備えている。溶接電流供給装置４は、複数の抵抗溶接機２、３に溶接電流を供給するものである。すなわち、溶接電流供給装置４は、タイマコンタクタ３１やトランス３２を備えており、異なる抵抗溶接機２、３の溶接電極１７〜２０に所望の溶接電流を供給するように構成している。また、この実施形態では、溶接電流供給装置４は、スイッチ３３を備えており、抵抗溶接機２、３に通電する際には、スイッチ３３により、溶接電流供給装置４と抵抗溶接機２、３を電気的に接続して通電を行うようになっている。なお、異なる抵抗溶接機２、３の溶接電極１７〜２０に溶接電流を供給する場合は、インダイレクトスポット溶接を行うため、この溶接電流供給装置４は直流電流を供給する。 Moreover, this resistance welding apparatus 1 is equipped with the welding current supply apparatus 4 separately, as shown in FIG. The welding current supply device 4 supplies a welding current to the plurality of resistance welders 2 and 3. That is, the welding current supply device 4 includes a timer contactor 31 and a transformer 32 and is configured to supply a desired welding current to the welding electrodes 17 to 20 of the different resistance welding machines 2 and 3. In this embodiment, the welding current supply device 4 includes a switch 33. When the resistance welding machines 2 and 3 are energized, the welding current supply device 4 and the resistance welding machines 2 and 3 are switched by the switch 33. Are electrically connected to each other. In addition, when supplying a welding current to the welding electrodes 17-20 of different resistance welding machines 2, 3, in order to perform indirect spot welding, the welding current supply device 4 supplies a direct current.
制御装置５は、複数の抵抗溶接機２、３のうち、いずれか一の抵抗溶接機の溶接電極をインダイレクト溶接電極として用い、他の抵抗溶接機の溶接電極をアース電極として用いるように、複数の抵抗溶接機２、３と溶接電流供給装置４を制御するものである。 The control device 5 uses the welding electrode of any one of the plurality of resistance welders 2 and 3 as an indirect welding electrode, and uses the welding electrode of another resistance welding machine as a ground electrode. The plurality of resistance welders 2 and 3 and the welding current supply device 4 are controlled.
図３に示すように、通常のシリーズスポット溶接が行えない屈曲部位などを溶接する場合は、制御装置５により複数の抵抗溶接機２、３を一体的に機能させて、インダイレクトスポット溶接を行う。 As shown in FIG. 3, when welding a bent portion where normal series spot welding cannot be performed, a plurality of resistance welders 2 and 3 are integrally functioned by the control device 5 to perform indirect spot welding. .
この場合、制御装置５は、一の抵抗溶接機２について一方の溶接電極１７を開放し、他の抵抗溶接機３の溶接電極１９、２０をアース電極として用いワーク１０に設置させておく。そして、一の抵抗溶接機２の溶接電極１８を、ワーク１０の所望の溶接位置Ａに移動させ、ワーク１０を加圧させ、スイッチ３３により、溶接電流供給装置４を抵抗溶接機２、３に接続し、溶接電流供給装置４により直流電流を通電する。これにより、当該ワーク１０の溶接位置Ａにインダイレクトスポット溶接をすることができる。なお、直流電流を通電する際、インダイレクトスポット溶接を行う電極側の発熱量を高くするため、インダイレクトスポット溶接を行う電極側がプラス、アース側がマイナスになるように通電するとよい。 In this case, the control device 5 opens one welding electrode 17 for one resistance welding machine 2 and places it on the workpiece 10 using the welding electrodes 19 and 20 of the other resistance welding machine 3 as ground electrodes. Then, the welding electrode 18 of one resistance welding machine 2 is moved to a desired welding position A of the workpiece 10, the workpiece 10 is pressurized, and the welding current supply device 4 is switched to the resistance welding machines 2, 3 by the switch 33. Connected, and direct current is applied by the welding current supply device 4. Thereby, indirect spot welding can be performed at the welding position A of the workpiece 10. When a direct current is applied, in order to increase the amount of heat generated on the electrode side where indirect spot welding is performed, it is preferable that the electrode side where indirect spot welding is performed be positive and the ground side be negative.
このように、この抵抗溶接装置１によれば、図３に示すように、複数の抵抗溶接機２、３を一体的に機能させて、通常では片側溶接が難しかったワーク１０が屈曲した箇所などに、片側溶接を行うことができる。また、インダイレクトスポット溶接を行う抵抗溶接機２とは別の抵抗溶接機３の溶接電極１９、２０をアース電極としており、アースの数を複数箇所取ることができ、アース側での電流集中を緩和できる。 Thus, according to this resistance welding apparatus 1, as shown in FIG. 3, the plurality of resistance welders 2 and 3 are made to function integrally, and the work 10 that is normally difficult to weld on one side is bent. In addition, one-side welding can be performed. Moreover, the welding electrodes 19 and 20 of the resistance welding machine 3 different from the resistance welding machine 2 that performs indirect spot welding are used as ground electrodes, so that the number of grounds can be taken at a plurality of locations, and the current concentration on the ground side can be reduced. Can be relaxed.
なお、図３に示すように、アースとして用いる他の抵抗溶接機３の溶接電極１９、２０は、予めシリーズスポット溶接で溶接した打点Ｂ、Ｃに設置するとよい。この場合、シリーズスポット溶接で溶接した打点Ｂ、Ｃは、シリーズスポット溶接を施したときに、溶接電極１９、２０の先端形状に合わせて窪んでいるから、アース電極として用いる溶接電極１９、２０との接触面積を広く取ることができる。これにより、各アース側での電流集中をさらに緩和でき、アース電極を接触させた部位におけるワークの発熱を低く抑えることができる。 In addition, as shown in FIG. 3, the welding electrodes 19 and 20 of the other resistance welding machine 3 used as the ground are preferably installed at the spot B and C which are previously welded by series spot welding. In this case, the striking points B and C welded by series spot welding are recessed in accordance with the tip shape of the welding electrodes 19 and 20 when the series spot welding is performed. The contact area can be widened. Thereby, current concentration on each ground side can be further alleviated, and the heat generation of the workpiece at the portion where the ground electrode is in contact can be kept low.
この抵抗溶接装置１によれば、一の抵抗溶接機２の溶接電極１８を、インダイレクト溶接を行う電極として用い、他の抵抗溶接機３の溶接電極１９、２０をアース電極として用いるので、治具側にアースを施工する必要がなく、屈曲した面など、通常のシリーズスポット溶接をし難い箇所であっても、特別な専用の溶接装置を設けことなく、インダイレクトスポット溶接を行うことができる。 According to this resistance welding apparatus 1, the welding electrode 18 of one resistance welding machine 2 is used as an electrode for performing indirect welding, and the welding electrodes 19 and 20 of other resistance welding machines 3 are used as ground electrodes. There is no need to install ground on the tool side, and indirect spot welding can be performed without providing a special dedicated welding device even in places where it is difficult to perform normal series spot welding such as bent surfaces. .
次に、本発明の他の実施形態に係る抵抗溶接装置を説明する。なお、図１に示す抵抗溶接装置１と同一の作用を奏する部材・部位には同じ符号を付して説明する。 Next, a resistance welding apparatus according to another embodiment of the present invention will be described. In addition, the same code | symbol is attached | subjected and demonstrated to the member and site | part which show | plays the same effect | action as the resistance welding apparatus 1 shown in FIG.
この抵抗溶接装置５０は、図４に示すように、抵抗溶接機２の溶接電流供給装置５１を、スイッチ５２で他の抵抗溶接機３に電気的に接続し、他の抵抗溶接機３に対して溶接電流を供給できるように構成し、供給する溶接電流として交流電流と直流電流を切り替えることができるようにしている。また、この抵抗溶接装置５０は、抵抗溶接機２、３、および、他の抵抗溶接機３に対して溶接電流を供給できるように構成した溶接電流供給装置５１を制御する制御装置５３を備えている。 As shown in FIG. 4, the resistance welding apparatus 50 electrically connects the welding current supply device 51 of the resistance welding machine 2 to another resistance welding machine 3 with a switch 52. The welding current can be supplied, and the alternating current and the direct current can be switched as the welding current to be supplied. The resistance welding device 50 also includes a control device 53 that controls a welding current supply device 51 configured to supply a welding current to the resistance welding machines 2 and 3 and the other resistance welding machine 3. Yes.
各抵抗溶接機２、３は、図５に示すように、通常はそれぞれシリーズスポット溶接が行える装置として用いることができる。この際、スイッチ５２は開いており、抵抗溶接機２の溶接電流供給装置５１は、抵抗溶接機２に対して溶接電流として交流電流を供給する。 As shown in FIG. 5, each resistance welder 2, 3 can normally be used as an apparatus that can perform series spot welding. At this time, the switch 52 is open, and the welding current supply device 51 of the resistance welding machine 2 supplies an alternating current as a welding current to the resistance welding machine 2.
通常のシリーズスポット溶接が行えない屈曲部位などを溶接する場合は、制御装置５３により複数の抵抗溶接機２、３を一体的に機能させる。この場合、制御装置５３は、図３に示すように、抵抗溶接機２について一方の溶接電極１８を開放し、他の抵抗溶接機３の溶接電極１９、２０をアース電極として用いワーク１０に設置させておく。そして、一の抵抗溶接機２の溶接電極１７を、ワーク１０の所望の溶接位置Ａに移動させる。そして、スイッチ５２（図示省略）を閉じ、溶接電流供給装置５１と他の抵抗溶接機３を電気的に接続し、溶接電流供給装置５１により直流電流を通電する。なお、直流電流を通電する際、インダイレクトスポット溶接を行う電極側の発熱量を高くするため、インダイレクトスポット溶接を行う電極１７側がプラス、アース側の電極１９、２０がマイナスになるように通電するとよい。これにより、当該ワーク１０の溶接位置Ａにインダイレクトスポット溶接をすることができる。 When welding a bent portion where normal series spot welding cannot be performed, the control device 53 causes the plurality of resistance welders 2 and 3 to function integrally. In this case, as shown in FIG. 3, the control device 53 opens one welding electrode 18 for the resistance welding machine 2 and installs the welding electrodes 19 and 20 of the other resistance welding machine 3 on the workpiece 10 as ground electrodes. Let me. Then, the welding electrode 17 of one resistance welding machine 2 is moved to a desired welding position A of the workpiece 10. Then, the switch 52 (not shown) is closed, the welding current supply device 51 and the other resistance welding machine 3 are electrically connected, and the welding current supply device 51 supplies a direct current. When applying a direct current, in order to increase the amount of heat generated on the electrode side where indirect spot welding is performed, the current is applied so that the electrode 17 side where indirect spot welding is performed is positive and the ground side electrodes 19 and 20 are negative. Good. Thereby, indirect spot welding can be performed at the welding position A of the workpiece 10.
この抵抗溶接装置５０によれば、一の抵抗溶接機２の溶接電流供給装置５１を、他の抵抗溶接機３にも通電できるように構成し、複数の抵抗溶接機２、３を一体的に機能させる際に用いるようにしたので、別途溶接電流供給装置を追加することがなく、設備コストを低く抑えることができる。 According to this resistance welding device 50, the welding current supply device 51 of one resistance welding machine 2 is configured to be able to energize other resistance welding machines 3, and a plurality of resistance welding machines 2, 3 are integrated. Since it was used when it was made to function, a separate welding current supply device was not added, and the equipment cost could be kept low.
以上、本発明の一実施形態に係る抵抗溶接装置を説明したが、本発明に係る抵抗溶接装置は上記に限定されるものではない。 As mentioned above, although the resistance welding apparatus which concerns on one Embodiment of this invention was demonstrated, the resistance welding apparatus which concerns on this invention is not limited above.
説明の便宜上、２つの抵抗溶接機を一体的に機能させる場合を例示したが、一体的に機能させる抵抗溶接機の数は、２つに限らず、２つ以上の複数の抵抗溶接機を一体的に機能させてもよい。 For convenience of explanation, the case where two resistance welders are made to function integrally has been illustrated, but the number of resistance welders to function integrally is not limited to two, and two or more resistance welders are integrated. May be functional.
また、一体的に機能させる複数の抵抗溶接機は、それぞれ通常はシリーズスポット溶接を行う抵抗溶接機であるものを例示したが、一体的に機能させる複数の抵抗溶接機の全てがシリーズスポット溶接を行う抵抗溶接機である必要は必ずしもなく、通常、インダイレクトスポット溶接を行う複数の抵抗溶接機を一体的に機能させるように構成してもよい。 In addition, the plurality of resistance welders that function integrally have been illustrated as resistance welders that normally perform series spot welding, but all of the plurality of resistance welders that function integrally perform series spot welding. It is not always necessary to be a resistance welding machine for performing, and a plurality of resistance welding machines for performing indirect spot welding may be configured to function integrally.
また、複数の抵抗溶接機を一体的に機能させる場合に、アースの数を多く確保し易いという点を考慮するとシリーズスポット溶接用の抵抗溶接機をアースとして用いるのが効率的である。 Further, in the case where a plurality of resistance welders are made to function integrally, it is efficient to use a resistance welder for series spot welding as the ground, considering that it is easy to ensure a large number of grounds.
１ 抵抗溶接装置
２、３ 抵抗溶接機
４ 溶接電流供給装置
５ 制御装置
１０ ワーク
１１ ロボットアーム
１３-１６ エアシリンダ
１７-２０ 溶接電極
２１ 溶接電流供給装置
３１ タイマコンタクタ
３２ トランス
３３ スイッチ
５０ 抵抗溶接装置
５１ 溶接電流供給装置
５２ スイッチ
５３ 制御装置
DESCRIPTION OF SYMBOLS 1 Resistance welding apparatus 2, 3 Resistance welding machine 4 Welding current supply apparatus 5 Control apparatus 10 Workpiece 11 Robot arm 13-16 Air cylinder 17-20 Welding electrode 21 Welding current supply apparatus 31 Timer contactor 32 Transformer 33 Switch 50 Resistance welding apparatus 51 Welding current supply device 52 Switch 53 Control device
Claims (4)
前記複数の抵抗溶接機に溶接電流を供給する溶接電流供給装置と、
前記複数の抵抗溶接機のうち、一の抵抗溶接機の溶接電極をインダイレクト溶接電極として用い、他の抵抗溶接機の溶接電極をアース電極として用いるように、前記複数の抵抗溶接機と前記溶接電流供給装置を制御する制御装置とを備えたことを特徴とする請求項１に記載の抵抗溶接装置。 A plurality of resistance welders with welding electrodes;
A welding current supply device for supplying a welding current to the plurality of resistance welders;
Among the plurality of resistance welders, the plurality of resistance welders and the weld are used so that the welding electrode of one resistance welding machine is used as an indirect welding electrode and the welding electrode of another resistance welding machine is used as a ground electrode. The resistance welding apparatus according to claim 1, further comprising a control device that controls the current supply device.
前記複数の抵抗溶接機のうち、一の抵抗溶接機の溶接電流供給装置を、他の抵抗溶接機の溶接電極にも溶接電流を供給できるように構成し、かつ、一の溶接電極をインダイレクト溶接電極として用い、他の溶接電極をアース電極として用いるように各抵抗溶接機および前記一の抵抗溶接機の溶接電流供給装置を制御する制御装置とを備えたことを特徴とする抵抗溶接装置。 A plurality of resistance welding machines including a welding electrode and a welding current supply device that supplies a welding current to the welding electrode are provided.
Among the plurality of resistance welders, a welding current supply device of one resistance welder is configured to supply a welding current to a welding electrode of another resistance welder, and one welding electrode is indirect A resistance welding apparatus comprising: a resistance welding machine and a control device for controlling a welding current supply device of the one resistance welding machine so that the other welding electrode is used as a ground electrode.
The resistance welding apparatus according to claim 1 or 2, wherein the resistance welding machine using the welding electrode as a ground electrode is a resistance welding machine for series spot welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005239174A JP4836515B2 (en) | 2005-08-19 | 2005-08-19 | Resistance welding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005239174A JP4836515B2 (en) | 2005-08-19 | 2005-08-19 | Resistance welding method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2007050450A true JP2007050450A (en) | 2007-03-01 |
| JP4836515B2 JP4836515B2 (en) | 2011-12-14 |
Family
ID=37915252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2005239174A Active JP4836515B2 (en) | 2005-08-19 | 2005-08-19 | Resistance welding method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4836515B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1844889A1 (en) * | 2006-04-13 | 2007-10-17 | KUKA Roboter GmbH | Method and device for spot welding on at least one workpiece using at least one robot |
| JP2010090440A (en) * | 2008-10-08 | 2010-04-22 | Jfe Steel Corp | High-strength steel having excellent one side spot weldability and one side spot welding method |
| ITUD20090050A1 (en) * | 2009-02-25 | 2010-08-26 | Tecnodinamica S R L | WELDING PLIERS |
| JP2019118922A (en) * | 2017-12-28 | 2019-07-22 | ダイハツ工業株式会社 | Welding method |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6135703B2 (en) * | 2014-05-29 | 2017-05-31 | Ｊｆｅスチール株式会社 | Resistance spot welding method for automobile and manufacturing method of welding joint for automobile |
| JP5991444B2 (en) * | 2014-07-23 | 2016-09-14 | Ｊｆｅスチール株式会社 | Resistance spot welding method |
| CN106112244A (en) * | 2016-07-07 | 2016-11-16 | 北汽福田汽车股份有限公司 | A kind of welder and welding method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5211944Y1 (en) * | 1974-04-18 | 1977-03-16 | ||
| JPS54115651A (en) * | 1978-02-28 | 1979-09-08 | Dengensha Mfg Co Ltd | Secondery circuit connecting method of multispot welding machine |
| JPS6142694Y2 (en) * | 1982-08-03 | 1986-12-03 | ||
| JPH04228272A (en) * | 1990-12-27 | 1992-08-18 | Nissan Motor Co Ltd | Method for assembling floor main in car |
| JPH06328264A (en) * | 1993-05-21 | 1994-11-29 | Amada Metrecs Co Ltd | Spot welding machine for direct/series combination |
| JPH10128551A (en) * | 1996-10-24 | 1998-05-19 | Miyachi Technos Corp | Method and equipment for resistance welding |
| JPH11333569A (en) * | 1998-05-26 | 1999-12-07 | Toyota Auto Body Co Ltd | Method and device for series spot welding |
-
2005
- 2005-08-19 JP JP2005239174A patent/JP4836515B2/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5211944Y1 (en) * | 1974-04-18 | 1977-03-16 | ||
| JPS54115651A (en) * | 1978-02-28 | 1979-09-08 | Dengensha Mfg Co Ltd | Secondery circuit connecting method of multispot welding machine |
| JPS6142694Y2 (en) * | 1982-08-03 | 1986-12-03 | ||
| JPH04228272A (en) * | 1990-12-27 | 1992-08-18 | Nissan Motor Co Ltd | Method for assembling floor main in car |
| JPH06328264A (en) * | 1993-05-21 | 1994-11-29 | Amada Metrecs Co Ltd | Spot welding machine for direct/series combination |
| JPH10128551A (en) * | 1996-10-24 | 1998-05-19 | Miyachi Technos Corp | Method and equipment for resistance welding |
| JPH11333569A (en) * | 1998-05-26 | 1999-12-07 | Toyota Auto Body Co Ltd | Method and device for series spot welding |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1844889A1 (en) * | 2006-04-13 | 2007-10-17 | KUKA Roboter GmbH | Method and device for spot welding on at least one workpiece using at least one robot |
| JP2010090440A (en) * | 2008-10-08 | 2010-04-22 | Jfe Steel Corp | High-strength steel having excellent one side spot weldability and one side spot welding method |
| ITUD20090050A1 (en) * | 2009-02-25 | 2010-08-26 | Tecnodinamica S R L | WELDING PLIERS |
| JP2019118922A (en) * | 2017-12-28 | 2019-07-22 | ダイハツ工業株式会社 | Welding method |
| JP7058064B2 (en) | 2017-12-28 | 2022-04-21 | ダイハツ工業株式会社 | Welding method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4836515B2 (en) | 2011-12-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4836515B2 (en) | Resistance welding method | |
| JP5411792B2 (en) | Resistance welding method and apparatus | |
| JP5427074B2 (en) | Resistance welding method and apparatus | |
| KR101149733B1 (en) | Clamping jig for spot welding | |
| KR20180011319A (en) | Resistance spot welding method | |
| KR20120101335A (en) | Methods and systems for resistance spot welding using direct current micro pulses | |
| WO2018043738A1 (en) | Resistance-welding equipment | |
| JP4139375B2 (en) | Resistance welding electrode and resistance welding method | |
| JP4535739B2 (en) | Spot welding equipment | |
| WO2015033537A1 (en) | Indirect spot welding device | |
| JP2019051523A (en) | Resistance-welding method and resistance-welding device | |
| JP2010247191A (en) | Multi-point spot welding machine | |
| JP5991444B2 (en) | Resistance spot welding method | |
| JP4753411B2 (en) | Energization control method for spot resistance welding | |
| JP2014113617A (en) | Resistance welding method and resistance welding apparatus | |
| JP3996737B2 (en) | Spot welding apparatus and spot welding method | |
| JP2007050449A (en) | Electric resistance welding machine | |
| CN110948098B (en) | Indirect spot welding device and welding method | |
| JP2016059937A (en) | Spot weld device | |
| JP2019147187A (en) | Spot welding method | |
| JP6049512B2 (en) | Spot welding method and spot welding apparatus | |
| KR102602613B1 (en) | Cutter for dressing electrode tip and cutter assembly including the same | |
| JP2005319485A (en) | Spot welding equipment | |
| JPH11245050A (en) | Method and device for multi-spot welding | |
| JP2013169590A (en) | One side spot welding equipment and one side spot welding method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20080612 |
|
| RD04 | Notification of resignation of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7424 Effective date: 20091111 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20110113 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20110119 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20110926 |
|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20110927 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20141007 Year of fee payment: 3 |
|
| R150 | Certificate of patent or registration of utility model |
Ref document number: 4836515 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |