JPH026191U

JPH026191U -

Info

Publication number: JPH026191U
Application number: JP8482988U
Authority: JP
Priority date: 1988-06-27
Filing date: 1988-06-27
Publication date: 1990-01-16

Description

[Brief explanation of drawings]

図面の第１図ないし第５図は、この考案の一実
施例に用いるもので、第１図は心棒と裏当て金を
示す材料受軸の分解斜視図、第２図は自動溶接装
置の正面図、第３図は同自動溶接装置の側面図、
第４図は箱状の被加工物を溶接する状態を示す材
料受軸の正面図、第５図は円筒状の被加工物を溶
接する状態を示す同材料受軸の正面図である。第
６図および第７図は従来の材料軸受に係り、第６
図は心棒と裏当て金を示す材料受軸の分解図、第
７図はコーナー用裏当て金と円筒用裏当て金の溶
接基準面高さの差を示す材料受軸の正面図である
。Ａ……自動溶接装置、Ａ′……本体、Ｂ……材
料受軸、２０……心棒、２０ｂ……収嵌部、２０
ｃ……バツクガス送気用溝部、２１……平板突合
用裏当て金、２１ａ，２３ｂ，２５ｂ……シール
ド用溝部、２１ｂ，２３ｃ，２５ｃ……噴出孔、
２２……箱状の被加工物、２３……コーナー用裏
当て金、２３ａ……傾斜面、２４……円筒状の被
加工物、２５……円筒用裏当て金。 Figures 1 to 5 of the drawings are used for one embodiment of this invention, in which Figure 1 is an exploded perspective view of the material bearing shaft showing the mandrel and backing metal, and Figure 2 is a front view of the automatic welding device. Figure 3 is a side view of the automatic welding equipment,
FIG. 4 is a front view of the material bearing shaft showing a state in which a box-shaped workpiece is welded, and FIG. 5 is a front view of the same material receiving shaft showing a state in which a cylindrical workpiece is welded. Figures 6 and 7 relate to conventional material bearings.
The figure is an exploded view of the material bearing shaft showing the mandrel and the backing metal, and FIG. 7 is a front view of the material bearing shaft showing the difference in welding reference surface height between the corner backing metal and the cylindrical backing metal. A...Automatic welding device, A'...Main body, B...Material bearing shaft, 20...Mandrel, 20b...Fitting part, 20
c...Groove for back gas supply, 21...Backing metal for flat plate butting, 21a, 23b, 25b...Groove for shielding, 21b, 23c, 25c...Ejection hole,
22... Box-shaped workpiece, 23... Corner backing metal, 23a... Inclined surface, 24... Cylindrical workpiece, 25... Cylindrical backing metal.

Claims

[Scope of utility model registration request]

In an automatic welding device that welds the workpiece using shielding gas and is equipped with a cantilever-supported material bearing shaft consisting of a backing metal and a mandrel that support the workpiece, the mandrel is formed to have an inverted fan shape in cross section, and , a fitting part for attaching the backing metal is formed on the top of the fitting part, the upper sides of both sides thereof are made to be stable surfaces that are flush with the inclined surfaces on both sides of the corner backing metal, and a fitting part is formed at the bottom of the fitting part in the longitudinal direction. A groove for feeding the back gas of the shielding gas is formed over the backing metal, and the backing metal is provided with a material receiving shaft in which ejection holes for the back gas communicating in the height direction are formed at appropriate intervals in the longitudinal direction of the backing metal. A material bearing shaft for automatic welding equipment.