JPS5910990U - Welding machine drive device - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

第１図は従来の駆動装置による溶接状況を示すもので、
ａは側面図、ｂは正面図、第２図および第３図は本考案
の駆動装置による溶接状況を示すもので、第２図ａは側
面図、第２図すは正面図、第３図ａは要部を拡大した側
面図、第３図すは第３図ａのＡ−Ａ線矢視図である。 図面中、１および２は円筒管（被溶接物）、３は駆動装
置、３ａは溶接ヘッド、５は溶接開先面、６はチェーン
、７はスプロケット、８は展張用ホイール、９は展長機
構である。Figure 1 shows a welding situation using a conventional drive device.
a is a side view, b is a front view, and FIGS. 2 and 3 show welding conditions using the drive device of the present invention. FIG. 2a is a side view, FIG. 2 is a front view, and FIG. FIG. 3a is an enlarged side view of a main part, and FIG. 3 is a view taken along the line A--A in FIG. 3a. In the drawings, 1 and 2 are cylindrical tubes (objects to be welded), 3 is a drive device, 3a is a welding head, 5 is a welding groove surface, 6 is a chain, 7 is a sprocket, 8 is a wheel for expansion, and 9 is an expansion length. It is a mechanism.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 溶接ヘッドが固定された駆動装置内に溶接開先面に沿っ
て被溶接物を囲繞するチェーンへ外接し進行方向前後に
回転自在に支持される一対のスプロケットを設けるとと
もに、前記チェーンを前記被溶接物に固定するための張
力を与える展張用ホイールを前記前後一対のスプロケッ
ト間に前記チェーンへ内接させて回転自在に支持する一
方、前記展張用ホイールを前記被溶接物の径方向へ移動
させる展張機構を設けたことを特徴とする溶接機駆動装
置。A pair of sprockets are provided in a drive device to which a welding head is fixed, and are circumscribed along a welding groove surface to a chain that surrounds the workpiece and are supported rotatably in the forward and backward directions. A tensioning wheel that applies tension for fixing to an object is inscribed in the chain between the pair of front and rear sprockets and rotatably supported, and a tensioning wheel that moves the tensioning wheel in the radial direction of the object to be welded. A welding machine drive device characterized by being provided with a mechanism.