JPS6293083A - Resistance welding method - Google Patents

Abstract

PURPOSE:To prevent welding defects, etc. by pressing the plate stock which is laminated by pinching a plate at the inner part from the both faces thereof and by deforming it plastically by crushing the space at both sides of the plate pinched between as well, then by performing the welding of a resistance welding, etc. CONSTITUTION:Plate stock 1, 1 are arranged by its laminating by pinching a plate 2. A hydraulic cylinder is actuated after performing the welding of the plate stock 1 upto the prescribed position at both sides of the plate 2. In this case, the electrode 5 fitted to a rod 6 presses the plate stock 1 from both faces, subjecting the plate stock 1 and plate 2 to plastic deformation and crushing the gap. Then, the resistance welding is performed by electrifying the electrode 5 and the gap 4 which was not crushed by the plastic deformation can be completely squashed by the pressure of the electrode 5 and the melting of the plate stock 1 and plate 2. In this way, the generation of welding defects is prevented and the operability can be improved as well.

Description

【発明の詳細な説明】 〔発明の利用分野〕 本発明は、抵抗溶接法に係り、特に、２板の板材の間に
少くとも１枚の巾のせまい板をはさみ、板の両側に空間
を残すことなく接続するのに好適な抵抗溶接法に関する
。[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a resistance welding method, in particular, a method in which at least one narrow plate with a width is sandwiched between two plates, and a space is left on both sides of the plate. This invention relates to a resistance welding method suitable for making connections without leaving any residue.

〔発明の背景〕[Background of the invention]

たとえば、と次ディングの屋上、ビルディング内部に形
成される川、池等、漏水対策の必要な場所では、コンク
リートの下に薄いステンルス製の板材を並べ、コンクリ
ートのひび割れによる漏水を防止している。For example, in places where water leakage prevention is required, such as the rooftop of Totsui Ding, rivers and ponds formed inside buildings, thin stainless steel plates are placed under the concrete to prevent water leakage due to cracks in the concrete.

このような漏水対策で使用されるステンレス製の板材は
、数１０ａ×数ｍの大きさであるため、板材の縁を折曲
げて抵抗浴接し、ＰＪｒ’ｈ￥の大きさに合せ布設して
いる。このとき、板材の四角では、少くとも３枚の板材
を接続するため、第２図に示−すように、２枚の板材↓
の間に、２枚の板２をはさんで、４枚同時に浴接する個
所がある。The stainless steel plates used to prevent water leakage are several tens of meters in size, so the edges of the plates are bent and connected to the resistance bath, and laid to fit the size of PJr'h. There is. At this time, in order to connect at least three plates at the square of the plate, as shown in Figure 2, two plates ↓
There is a place where two plates 2 are sandwiched between them, and four plates are brought into contact with the bath at the same time.

従来、このような個所は、第３図に示すように多数点の
点浴接を行なって接続していた。しかし、このような溶
接方法では、作業時間が多くかかる疋けでなく板２の両
側にすき間４が残り、このすき間４全通して水が流出し
て漏水の原因となっていた。Conventionally, such points have been connected by making point bath connections at multiple points, as shown in FIG. However, in such a welding method, gaps 4 are left on both sides of the plate 2 instead of welding, which takes a lot of time, and water flows out through the gaps 4, causing water leakage.

〔発明の目的〕[Purpose of the invention]

本発明の目的は、上記した従来技術の欠点をなくシ、す
き間ｆ！Ｉ：発生させることなく接続するための抵抗溶
接法を提供するにある。An object of the present invention is to eliminate the above-mentioned drawbacks of the prior art, and to eliminate the gap f! I: To provide a resistance welding method for connection without generation.

〔発明の概安〕[Summary of the invention]

上記目的を達成するため、本発明においては、板をはさ
んだ板材をその両面から加圧し、板の両−側のすき間を
押潰すように塑性変形させたのち、所定の電流全印加し
て浴接することを特徴とする、〔発明の実施例〕 以Ｆ１本発明の一実施例を図面ｌこしたがって説明する
。In order to achieve the above object, in the present invention, a plate material sandwiched between plates is pressurized from both sides to plastically deform it so as to crush the gaps on both sides of the plate, and then a full predetermined current is applied to bathe the plate material. [Embodiment of the Invention] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

第１図は、本発明の一実施例を示すもので、同図にｋい
て、第２図および第３図と同じものは、同し符号を付け
て示す。５は電極にして各々油圧ン・リング（図示せず
）のロンドロに取付られ、かつ溶接電源（図示せずンに
接続されている。FIG. 1 shows an embodiment of the present invention, and the same parts in FIG. 1 as in FIGS. 2 and 3 are designated by the same reference numerals. Reference numerals 5 and 5 serve as electrodes, each of which is attached to a hydraulic ring (not shown) and connected to a welding power source (not shown).

このような構成において、板２の両側の所足の位置まで
、板材１の溶接を行なったのち、油圧シリンダ″ｆｃ作
動させ、電極５で板材ｌの両面から加土して板材１、板
２を塑性変形させ、すき間４を押潰す。この状態で、電
極５に通電して抵抗溶接する。このとさ、塑性変形で押
潰しきれなかったすき間４も、板材ｌおよび板２の溶融
、あるいは電極の加圧力によって完全に潰すことができ
る。In such a configuration, after welding the plate material 1 to the required positions on both sides of the plate 2, the hydraulic cylinder "fc" is activated, and the electrodes 5 are used to fill soil from both sides of the plate material l, thereby welding the plate material 1 and the plate 2. is plastically deformed to crush the gap 4. In this state, the electrode 5 is energized to perform resistance welding. At this time, the gap 4 that could not be completely crushed due to plastic deformation is also melted by the melting of the plate l and plate 2, or It can be completely crushed by the pressure applied by the electrodes.

〔発明の効果〕〔Effect of the invention〕

以上述べた如く、本発明によれは、短時間で欠−陥のな
い溶接を行なうことがでさ、作業性や品質を向上させる
ことができる。As described above, according to the present invention, defect-free welding can be performed in a short time, and workability and quality can be improved.

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

第１図は、本発明の一実施例を示″ｒ浴接作業の工程図
、第２図は、溶接物の一例金示す平面図、第３図は、従
来の浴接状態を示す図で、（、ａつは正面図、（Ｂ）は
平面図である。 １・・・板材、　　２・・・板。 、・Ｊ：′″″−゛ （・ ｉＮｌ、二１Fig. 1 shows an embodiment of the present invention, a process diagram of bath welding work, Fig. 2 is a plan view showing an example of a welded product, and Fig. 3 is a diagram showing a conventional bath welding state. , (, a is a front view, (B) is a plan view. 1... Board material, 2... Board. ,・J:′″″−゛(・iNl, 21

Claims (1)

【特許請求の範囲】[Claims] 少くとも１枚の板をはさんで積層された板材を、その両
面から加圧し、間にはさまれた板の両側の空間を押潰す
ように塑性変形させたのち、所定の電流を印加して溶接
することを特徴とする抵抗溶接法。Pressure is applied to the laminated plates with at least one plate in between, causing plastic deformation so as to crush the space on both sides of the sandwiched plates, and then a predetermined electric current is applied. A resistance welding method characterized by welding using