JPH0426686U

JPH0426686U -

Info

Publication number: JPH0426686U
Application number: JP1990065275U
Authority: JP
Priority date: 1990-06-20
Filing date: 1990-06-20
Publication date: 1992-03-03

Description

[Brief explanation of the drawing]

第１図は本考案の第１実施例を示す断面側面図
、第２図はレーザ溶接用ロボツトの全体外観図、
第３図はレーザ溶接用ロボツトの光学系説明図、
第４図は第２実施例を示すノズル部分の断面側面
図である。７……ノズル、８……トーチ、５……放物面鏡
、１７……ビーム導入口、２９……ノズル先端口
、３３……仕切部材、３４……ビーム通過孔、３
８……ガス案内路。 FIG. 1 is a cross-sectional side view showing the first embodiment of the present invention, FIG. 2 is an overall external view of a laser welding robot,
Figure 3 is an explanatory diagram of the optical system of a laser welding robot.
FIG. 4 is a cross-sectional side view of a nozzle portion showing a second embodiment. 7... Nozzle, 8... Torch, 5... Parabolic mirror, 17... Beam introduction port, 29... Nozzle tip opening, 33... Partition member, 34... Beam passing hole, 3
8...Gas guideway.

Claims

[Claims for Utility Model Registration] The laser beam introduced from the beam inlet provided in the torch is condensed by the condensing action of the built-in condensing optical element and passed through the nozzle to form the nozzle tip opening. In a laser welding torch that irradiates from the side and spouts processing auxiliary gas from the nozzle tip opening side, the nozzle has a diameter slightly larger than the laser beam optical path diameter and a diameter that gradually decreases in the laser beam passing direction. A partition member is provided with a beam passage hole, and a processing auxiliary gas supply section is provided on the condensing optical element side so that the processing auxiliary gas flows into the nozzle from the condensing optical element side. Characteristic nozzle structure of laser welding torch.