JPH02144277U

JPH02144277U -

Info

Publication number: JPH02144277U
Application number: JP5117689U
Authority: JP
Priority date: 1989-04-28
Filing date: 1989-04-28
Publication date: 1990-12-06

Description

[Brief explanation of drawings]

第１〜５図は本考案を具体化した一実施例を示
し、第１図は突合せ抵抗溶接機の部分正面図、第
２図は同じく部分側面図、第３図は位置決めレバ
ーに端部を当接して位置決めを行つた状態を示す
概略説明図、第４図はワーク端部同志を当接させ
た状態を示す概略説明図、第５図は突合せ溶接さ
れたワーク端部の部分正面図、第６〜９図は従来
技術を示し、第６図はワーク端部の当接面を左右
両電極間の中央位置に配置した状態を示す概略説
明図、第７図はワーク端部の当接面を左右両電極
間の中央位置からずれた位置に配置した状態を示
す概略説明図、第８図はワーク端部同志が当接さ
れないまま電極で挟持した状態を示す概略説明図
、第９図は第７図の状態で突合せ溶接を行つた場
合のワーク端部の部分正面図である。１，２……電極、７……位置決め手段としての
位置決めレバー、１６，１７……端部、Ｗ……ワ
ーク。 1 to 5 show an embodiment embodying the present invention, FIG. 1 is a partial front view of a butt resistance welding machine, FIG. 2 is a partial side view of the same, and FIG. A schematic explanatory diagram showing a state in which the ends of the workpieces are in contact with each other for positioning; FIG. 4 is a schematic explanatory diagram showing a state in which the ends of the workpieces are in contact with each other; FIG. 5 is a partial front view of the ends of the workpieces butt-welded; Figures 6 to 9 show the prior art, Figure 6 is a schematic explanatory diagram showing a state in which the contact surface of the workpiece end is placed at the center position between the left and right electrodes, and Figure 7 shows the contact of the workpiece end. A schematic explanatory diagram showing a state in which the surface is placed at a position offset from the center position between the left and right electrodes, FIG. 8 is a schematic explanatory diagram showing a state in which the workpiece ends are held between the electrodes without contacting each other, and FIG. 9 7 is a partial front view of the end of the workpiece when butt welding is performed in the state shown in FIG. 7. FIG. 1, 2... Electrode, 7... Positioning lever as positioning means, 16, 17... End, W... Work.

Claims

[Claims for Utility Model Registration] A pair of end portions 16 and 17 of the workpiece W are arranged opposite each other, and each end portion 16 and 17 is sandwiched between electrodes 1 and 2, and the electrodes are placed in contact with each other while pressing both end portions 16 and 17 together. In a butt resistance welding machine that welds both ends 16 and 17 of a workpiece W by supplying current to the electrodes 1 and 2, both ends 1 of the workpiece W are connected between the electrodes 1 and 2.
6 and 17 are arranged facing each other, and a positioning means 7 is provided which comes into contact with the end faces of these ends and comes out from between the ends 16 and 17 when both ends 16 and 17 are pressed against each other. Butt resistance welding machine.