JPH0228362U

JPH0228362U -

Info

Publication number: JPH0228362U
Application number: JP1988106400U
Authority: JP
Priority date: 1988-08-11
Filing date: 1988-08-11
Publication date: 1990-02-23

Description

[Brief explanation of drawings]

第１図は本考案の第１実施例で用いる光学系の
原理図、第２図は本考案の第１実施例による光学
系を組込んだブレージングロボツトの全体斜視図
、第３図は同ブレージングロボツトの光学系を示
す断面図、第４図は同ブレージングロボツトのブ
ロツク線図、第５図は第１実施例のビード巾とス
ポツト径との関係を示す線図、第６図は本考案の
第２実施例で用いる光学系の原理図、第７図は本
考案の第３実施例で用いる光学系の原理図、第８
図は従来のレーザ・ブレージング装置の要部拡大
斜視図、第９図は同レーザ・ブレージング装置の
光学系の原理説明図である。１１，１１Ａ…コンデンサレンズ、１１ｃ…非
収束面、１４…ブレージングワイヤ、１８…ブレ
ージング面、１９…貫通孔、２０…放物面ミラー
、２０ｂ…平面反射面。 Fig. 1 is a principle diagram of the optical system used in the first embodiment of the present invention, Fig. 2 is an overall perspective view of a brazing robot incorporating the optical system according to the first embodiment of the present invention, and Fig. 3 is a diagram of the same brazing robot. 4 is a block diagram of the brazing robot, FIG. 5 is a diagram showing the relationship between the bead width and spot diameter of the first embodiment, and FIG. 6 is a diagram of the brazing robot according to the present invention. Fig. 7 is a principle diagram of the optical system used in the second embodiment, and Fig. 8 is a principle diagram of the optical system used in the third embodiment of the present invention.
The figure is an enlarged perspective view of the main parts of a conventional laser brazing device, and FIG. 9 is a diagram explaining the principle of the optical system of the same laser brazing device. 11, 11A... Condenser lens, 11c... Non-converging surface, 14... Brazing wire, 18... Brazing surface, 19... Through hole, 20... Parabolic mirror, 20b... Planar reflective surface.

Claims

[Scope of utility model registration request]

In an optical system of a laser brazing device that heats a brazing surface and melts a brazing wire by converging a laser beam guided in a substantially coherent state by a condensing means, the laser beam is transmitted or reflected. An optical system for a laser brazing device, characterized in that a non-convergent portion is formed in a portion corresponding to the center of a laser beam of an optical means.