JPS63163291U

JPS63163291U -

Info

Publication number: JPS63163291U
Application number: JP1987052351U
Authority: JP
Priority date: 1987-04-07
Filing date: 1987-04-07
Publication date: 1988-10-25

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例に係るレーザ溶接用
ヘツドを適用した溶接状態の縦断面図、第２図は
本実施例に係る第１図―矢視の横断面図、第
３図は本実施例に係る第１図―矢視の横断面
図、第４図は従来のレーザ溶接用加工ヘツドの構
成を示す縦断面図である。１……レーザ光、２……集光レンズ、３，３Ｕ
，３Ｌ……保護ガス用ノズル、４，４Ｕ，４Ｌ…
…保護ガス、５，５Ｕ，５Ｌ……レーザ溶接用ヘ
ツド、６，６Ａ……先端ノズル、７……シールド
ガス、８……シールドガスノズル、９……サイド
アシストガス、１０……サイドアシストガスノズ
ル、１１……高さ調整装置、１２……シールドボ
ツクス、１３……加工対象物。 Fig. 1 is a longitudinal cross-sectional view of a welding state using a laser welding head according to an embodiment of the present invention, Fig. 2 is a cross-sectional view of the present embodiment taken from Fig. FIG. 1 is a cross-sectional view taken in the direction of arrows in FIG. 1 according to this embodiment, and FIG. 4 is a longitudinal cross-sectional view showing the structure of a conventional laser welding processing head. 1... Laser light, 2... Condensing lens, 3,3U
, 3L... Protective gas nozzle, 4, 4U, 4L...
...Protective gas, 5,5U,5L...Laser welding head, 6,6A...Tip nozzle, 7...Shield gas, 8...Shield gas nozzle, 9...Side assist gas, 10...Side assist gas nozzle, 11... Height adjustment device, 12... Shield box, 13... Workpiece.

Claims

[Scope of utility model registration request]

A shield box with a shield gas nozzle and a side assist gas nozzle with a height adjustment mechanism attached to shield the welding area from the atmosphere, and a tip nozzle fitted into the shield box screwed to the bottom.
A protective gas nozzle is installed near the top of the tip nozzle so as to be perpendicular to the direction of travel of the laser beam, and is attached to one end of the outer periphery, and a through hole is provided in the opposing side wall, and the inner surface is narrowed toward the tip nozzle. It is attached to the lower part of the welding head and extendable by sliding on the outer periphery of the upper cylindrical wall surface of the lower part of the head, and has a laser condensing lens at the top, and the laser beam travels to the lower part near the condensing lens. A protective gas nozzle provided perpendicular to the direction is attached to one end of the outer periphery, a through hole is provided in the opposing side wall, and the inner surface is provided with an upper part of the welding head having a cylindrical shape. Processing head for laser welding.