JP2677102B2 - Flash welding equipment - Google Patents
Flash welding equipmentInfo
- Publication number
- JP2677102B2 JP2677102B2 JP3621792A JP3621792A JP2677102B2 JP 2677102 B2 JP2677102 B2 JP 2677102B2 JP 3621792 A JP3621792 A JP 3621792A JP 3621792 A JP3621792 A JP 3621792A JP 2677102 B2 JP2677102 B2 JP 2677102B2
- Authority
- JP
- Japan
- Prior art keywords
- flash
- welding
- welding material
- electrode
- temperature sensor
- 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 - Lifetime
Links
Landscapes
- Resistance Welding (AREA)
- Control Of Resistance Heating (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、フラッシュ溶接装置に
関する。FIELD OF THE INVENTION The present invention relates to a flash welding apparatus.
【０００２】[0002]
【従来の技術】図４は例えば特公昭５９−１８１５６号
公報に示された従来の溶接装置を示す断面図である。図
において、１は固定台、２は移動台、５４は入側溶接
材、５５は出側溶接材、４４は入側電極、４５は出側電
極、５２はカッター、５３は剪断装置である。2. Description of the Related Art FIG. 4 is a sectional view showing a conventional welding apparatus disclosed in, for example, Japanese Patent Publication No. 59-18156. In the figure, 1 is a fixed base, 2 is a movable base, 54 is an input side welding material, 55 is an output side welding material, 44 is an input side electrode, 45 is an output side electrode, 52 is a cutter, and 53 is a shearing device.
【０００３】この構成においては、溶接準備の終了後、
入側電極４４と出側電極４５の間で電圧が印加され、入
側溶接材５４と出側溶接材５５間でフラッシュが発生し
（フラッシュ工程）、溶接が開始され、所定の制御が行
なわれ、フラッシュ量分だけ移動台２が固定台１に接近
したあと急速に、移動台２がアプセット量ｌｏだけ固定
台１に接近し（アプセット工程）、全溶接工程が終了す
る。In this structure, after the welding preparation is completed,
A voltage is applied between the input side electrode 44 and the output side electrode 45, a flash is generated between the input side welding material 54 and the output side welding material 55 (flash process), welding is started, and predetermined control is performed. After the movable table 2 approaches the fixed table 1 by the flash amount, the movable table 2 rapidly approaches the fixed table 1 by the upset amount lo (upset process), and the entire welding process is completed.
【０００４】上記アプセット工程を良好に行なうには、
図５の（ア）に示すように、フラッシュ工程においてア
プセット量に相当する溶接材の部分を温度ｔｏ以上にす
る必要があり、同図（イ）では入熱不足のため良好なア
プセット工程を行なえず、また、同図（ウ）では入熱過
剰のため無駄な電力と時間がかかる。In order to perform the upsetting process favorably,
As shown in FIG. 5A, in the flash process, the portion of the welding material corresponding to the upset amount needs to be at a temperature to or higher, and in FIG. 5A, a good upset process cannot be performed due to insufficient heat input. In addition, in the same figure (c), excessive heat input causes unnecessary power consumption and time.
【０００５】[0005]
【発明が解決しようとする課題】上記従来のものでは、
各種の溶接パラメータ例えば板厚、板巾、材質、移動台
の送り速度、印加電圧、通電時間等と入熱条件との関係
を測定することができず、溶接結果をコントロールする
ことができず、安定した溶接が行なえないという問題が
あった。SUMMARY OF THE INVENTION In the above prior art,
Various welding parameters such as plate thickness, plate width, material, feed rate of moving table, applied voltage, and the relationship between heat input conditions and heat input conditions cannot be measured, and the welding results cannot be controlled. There was a problem that stable welding could not be performed.
【０００６】本発明はこの問題を解消するためになされ
たもので、大きなクランプ力を受けて破損することのな
いように温度センサを設け、容易に安定した良好な溶接
を行なうことができるフラッシュ溶接装置を提供するこ
とを目的とする。The present invention has been made in order to solve this problem, and is a flash welding in which a temperature sensor is provided so as not to be damaged by a large clamping force, and stable and excellent welding can be easily performed. The purpose is to provide a device.
【０００７】[0007]
【課題を解決するための手段】本発明は上記目的を達成
するために、上部電極ホルダに保持された上部電極と、
下部電極ホルダに保持された下部電極とを備えるフラッ
シュ溶接装置において、ばねにより溶接材側へ付勢され
非クランプ時電極面から突出する温度センサを電極内の
溶接部から所定位置に設け、フラッシュ工程時に、予め
設定した溶接材の温度特性と上記温度センサの出力との
比較に基づきフラッシュ時間あるいはフラッシュ時印加
電圧あるいは送り速度が制御される構成とした。In order to achieve the above object, the present invention provides an upper electrode held by an upper electrode holder,
In a flash welding apparatus equipped with a lower electrode held by a lower electrode holder, a temperature sensor that is biased by a spring toward the welding material and protrudes from the electrode surface when not clamped is provided at a predetermined position from the welded portion in the electrode to perform a flash process. At this time, the flash time, the applied voltage during flash, or the feed rate is controlled based on the comparison between the preset temperature characteristics of the welding material and the output of the temperature sensor.
【０００８】[0008]
【作用】本発明では、温度センサが、ばねにより溶接材
側へ付勢して電極内に設けられているので、当該温度セ
ンサが大きなクランプ力を受けて破損する危険はなく、
設定温度と溶接材の実温度との比較からフラッシュ工程
を制御するから、容易に安定した良好な溶接を行なうこ
とができる。In the present invention, since the temperature sensor is provided in the electrode by urging it toward the welding material side by the spring, there is no danger of the temperature sensor being damaged by a large clamping force.
Since the flash process is controlled based on the comparison between the set temperature and the actual temperature of the welding material, stable and excellent welding can be performed easily.
【０００９】[0009]
【実施例】以下、本発明の１実施例を図面を参照して説
明する。An embodiment of the present invention will be described below with reference to the drawings.
【００１０】図１において、６０は上部電極、６１は上
部電極６０の電極ホルダ、６２は下部電極、６３は下部
電極６２の電極ホルダである。６４は非接触式の温度セ
ンサであって、溶接部から距離ｌのところで、下部電極
６２内に上下動可能に収納されており、ばね６５で上向
きに付勢されて非溶接時には上端部が電極面より突出し
ている。ばね６５は電極ホルダ６３に設けた凹部に収納
されている。In FIG. 1, 60 is an upper electrode, 61 is an electrode holder for the upper electrode 60, 62 is a lower electrode, and 63 is an electrode holder for the lower electrode 62. Reference numeral 64 denotes a non-contact type temperature sensor, which is accommodated in the lower electrode 62 at a distance l from the welded portion so as to be movable up and down, and is biased upward by a spring 65 so that the upper end portion is the electrode when not welded. It protrudes from the surface. The spring 65 is housed in a recess provided in the electrode holder 63.
【００１１】この構成において、出側溶接材５５が固定
台１内にセットされると、上部電極６０と下部電極６２
で当該出側溶接材５５がクランプされる。このクランプ
動作に伴い温度センサ６４は出側溶接材５５に押されて
ばね６５の付勢力に抗して下降する。この後、入側溶接
材５４と出側溶接材５５間に電圧が印加され、フラッシ
ュ工程が開始され、温度センサ６４は溶接部から距離ｌ
ｏにある溶接材５４の温度を直接計測する。In this structure, when the welding material 55 on the outgoing side is set in the fixed base 1, the upper electrode 60 and the lower electrode 62 are placed.
Then, the outgoing welding material 55 is clamped. Along with this clamping operation, the temperature sensor 64 is pushed by the outgoing welding material 55 and moves down against the biasing force of the spring 65. After that, a voltage is applied between the inlet-side welding material 54 and the outlet-side welding material 55 to start the flushing process, and the temperature sensor 64 is separated from the welded portion by a distance l
The temperature of the welding material 54 at o is directly measured.
【００１２】図２は予め計測されたフラッシュ工程中の
溶接材の最適な温度曲線を示したものである。良好なア
プセットを行なうためには、ｌｏの位置で溶接材の温度
がｔｏになる必要があるが、これはｌ1 の位置でｔ1 の
温度になっているのと等価である。FIG. 2 shows a pre-measured optimum temperature curve of the welding material during the flash process. In order to perform good upset, the temperature of the welding material needs to be to at the lo position, which is equivalent to the temperature at t 1 at the l 1 position.
【００１３】図３のフロー図に示すように、温度センサ
で計測したフラッシュ工程中の溶接材の温度ｔと予め溶
接条件として設定された温度ｔ1 とを比較し、温度ｔが
温度ｔ1 とひとしくなるかもしくはそれ以上になるまで
フラッシュ時間を継続する。[0013] As shown in the flow diagram of Figure 3 compares the temperature t 1 which is set in advance as welding conditions and the temperature t of the welding material in the flash process measured by the temperature sensor, the temperature t is the temperature t 1 Continue flush time until equal or more.
【００１４】本実施例では、温度センサ６４を、ばねに
より溶接材側へ付勢し、非クランプ時電極面から若干突
出するようにしてあるので、当該温度センサ６４が大き
なクランプ力を受けて破損する危険はない。In this embodiment, the temperature sensor 64 is biased toward the welding material by a spring so that it slightly projects from the electrode surface when not clamped. Therefore, the temperature sensor 64 receives a large clamping force and is damaged. There is no danger to
【００１５】なお、温度センサ６４は上部電極６０内に
設けてもよい。The temperature sensor 64 may be provided in the upper electrode 60.
【００１６】また、温度センサ６４は固定台１側にある
が、移動台２側、または固定台と移動台の両者にに設け
てもい。Although the temperature sensor 64 is provided on the fixed base 1 side, it may be provided on the movable base 2 side or on both the fixed base and the movable base.
【００１７】また、温度センサ６４は複数個、例えば、
図２に示す溶接部からｌ1 、ｌ2 、ｌ3 の位置にそれぞ
れ配置し、各位置でのｔｏに対応した等価温度ｔ1 、ｔ
2 、ｔ3 を全て満足までフラッシュを継続するようにし
ても良い。A plurality of temperature sensors 64, for example,
Equivalent temperatures t 1 and t corresponding to to are respectively arranged at positions l 1 , l 2 and l 3 from the welded portion shown in FIG.
The flush may be continued until all of 2 and t 3 are satisfied.
【００１８】また、図３では、溶接条件のうち、フラッ
シュ時間を制御しているが、移動台送り速度またはフラ
ッシュ時印加電圧を制御するようにしてもよい。Further, in FIG. 3, the flashing time is controlled among the welding conditions, but the moving table feed speed or the voltage applied during flashing may be controlled.
【００１９】[0019]
【発明の効果】本発明は以上説明した通り、温度センサ
を、ばねにより溶接材側へ付勢して電極内に設けたの
で、当該温度センサが大きなクランプ力を受けて破損す
る危険はなく、設定温度と溶接材の実温度との比較から
フラッシュ工程を制御できるので、安定した良好な溶接
を行なうことができる。As described above, according to the present invention, since the temperature sensor is provided in the electrode by urging it toward the welding material side by the spring, there is no risk that the temperature sensor receives a large clamping force and is damaged. Since the flash process can be controlled by comparing the set temperature with the actual temperature of the welding material, stable and good welding can be performed.
【図１】本発明の実施例を示す部分断面図である。FIG. 1 is a partial sectional view showing an embodiment of the present invention.
【図２】溶接材の最適温度特性図である。FIG. 2 is an optimum temperature characteristic diagram of a welding material.
【図３】本発明の実施例におけるフラッシュ時間制御フ
ロー図である。FIG. 3 is a flowchart of flash time control in the embodiment of the present invention.
【図４】従来の溶接装置の断面図である。FIG. 4 is a sectional view of a conventional welding device.
【図５】溶接材の温度分布を説明するための図である。FIG. 5 is a diagram for explaining a temperature distribution of a welding material.
５４ 入側溶接材 ５５ 出側溶接材 ６０ 上部電極 ６１ 上部電極ホルダ ６２ 下部電極 ６３ 下部電極ホルダ ６４ 温度センサ ６５ ばね ６６、６７ ばね押さえ 54 Input Side Welding Material 55 Output Side Welding Material 60 Upper Electrode 61 Upper Electrode Holder 62 Lower Electrode 63 Lower Electrode Holder 64 Temperature Sensor 65 Spring 66, 67 Spring Presser
Claims (1)
と、下部電極ホルダに保持された下部電極とを備えるフ
ラッシュ溶接装置において、ばねにより溶接材側へ付勢
され非クランプ時電極面から突出する温度センサを電極
内の溶接部から所定位置に設け、フラッシュ工程時に、
予め設定した溶接材の温度特性と上記温度センサの出力
との比較に基づきフラッシュ時間あるいはフラッシュ時
印加電圧あるいは送り速度が制御されることを特徴とす
るフラッシュ溶接装置。1. A flash welding apparatus comprising an upper electrode held by an upper electrode holder and a lower electrode held by a lower electrode holder, and is urged toward a welding material by a spring to project from an electrode surface when not clamped. A temperature sensor is installed at a predetermined position from the welded part in the electrode, and during the flash process,
A flash welding apparatus characterized in that a flash time, an applied voltage during flash or a feed rate is controlled based on a comparison between a preset temperature characteristic of a welding material and an output of the temperature sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3621792A JP2677102B2 (en) | 1992-02-24 | 1992-02-24 | Flash welding equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3621792A JP2677102B2 (en) | 1992-02-24 | 1992-02-24 | Flash welding equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05228639A JPH05228639A (en) | 1993-09-07 |
| JP2677102B2 true JP2677102B2 (en) | 1997-11-17 |
Family
ID=12463599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3621792A Expired - Lifetime JP2677102B2 (en) | 1992-02-24 | 1992-02-24 | Flash welding equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2677102B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101689172B1 (en) * | 2016-05-12 | 2016-12-26 | (주)신화웰텍 | A method of estimating welding quality in flash buttwelding process |
| CN106513963B (en) * | 2016-12-09 | 2018-11-23 | 珠海启世机械设备股份有限公司 | A kind of method and system of flash welding |
-
1992
- 1992-02-24 JP JP3621792A patent/JP2677102B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05228639A (en) | 1993-09-07 |
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