JPS6158991U

JPS6158991U -

Info

Publication number: JPS6158991U
Application number: JP1984141520U
Authority: JP
Priority date: 1984-09-20
Filing date: 1984-09-20
Publication date: 1986-04-21

Description

[Brief explanation of drawings]

第１図は本考案の実施例の加工ヘツドの断面図
、第２図は他の実施例の加工ヘツドの断面図、第
３図は従来例の加工ヘツドの断面図である。図において、１は加工ヘツド、２はレンズ、３
，６，７，８はガス導入管、４は点火プラグ、５
は点火コイル、Ｗは被加工物である。なお、各図
中同一符号は同一または相当部分を示す。 FIG. 1 is a sectional view of a machining head according to an embodiment of the present invention, FIG. 2 is a sectional view of a machining head of another embodiment, and FIG. 3 is a sectional view of a conventional machining head. In the figure, 1 is the processing head, 2 is the lens, and 3
, 6, 7, 8 are gas introduction pipes, 4 is a spark plug, 5
is an ignition coil, and W is a workpiece. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims

[Scope of Claim for Utility Model Registration] (1) In a device that performs processing such as drilling or cutting on a workpiece such as a metal by condensing a laser beam with a lens and moving near the focus position, the lens and the workpiece A pulse laser machining device characterized in that an ignition device is provided so that an explosive atmosphere of assist gas is sent into a space between a focal point on a workpiece and a spark discharge gap projects into a machining head. (2) The tip nozzle part below the lens of the processing head has a double structure, and the ignition device is installed so that the spark discharge gap faces into the outer nozzle chamber,
2. The pulse laser processing apparatus according to claim 1, wherein an assist gas having an explosive atmosphere is fed into the outer nozzle chamber, and _O2 gas is fed into the inner nozzle chamber.