JPH03116281U

JPH03116281U -

Info

Publication number: JPH03116281U
Application number: JP1990022155U
Authority: JP
Priority date: 1990-03-07
Filing date: 1990-03-07
Publication date: 1991-12-02

Description

[Brief explanation of drawings]

第１図は本考案に係る溶接パイプのレーザ切断
装置の１実施例の概略斜視図、第２図は第１図の
要部中央線縦断面図、第３図は切断ノズル部の概
略断面図である。図面中、１……リング状の回転体、２……第３
反射鏡、３……切断ノズル、３ａ……集束レンズ
、３ｂ……アシストガス導入口、３ｃ……アシス
トガスノズル、４……レーザ発振機側リング状の
回転体、５……第２反射鏡、６……レーザ発振機
、７……第１反射鏡、８……駆動装置、９……移
動架台、９ａ……レール、１０……移動装置、１
１……駆動装置、１２……造管装置、Ｐ……溶接
パイプ、Ｌ……レーザビーム。 Fig. 1 is a schematic perspective view of one embodiment of the welded pipe laser cutting device according to the present invention, Fig. 2 is a longitudinal sectional view along the center line of the main part of Fig. 1, and Fig. 3 is a schematic sectional view of the cutting nozzle part. It is. In the drawing, 1...ring-shaped rotating body, 2...3rd...
Reflector, 3... Cutting nozzle, 3a... Focusing lens, 3b... Assist gas inlet, 3c... Assist gas nozzle, 4... Laser oscillator side ring-shaped rotating body, 5... Second reflecting mirror, 6...Laser oscillator, 7...First reflecting mirror, 8...Driving device, 9...Moving frame, 9a...Rail, 10...Moving device, 1
1... Drive device, 12... Pipe making device, P... Welded pipe, L... Laser beam.

Claims

[Scope of utility model registration request]

A third reflecting mirror 2 is located at the welded pipe discharge position of the pipe making device 12 and reflects the laser beam L, and a cutting nozzle 3 is provided to irradiate the outer surface of the welded pipe P with the reflected laser beam L. a ring-shaped rotating body 1 with which a welded pipe P coincides with its axis and passes through the ring-shaped rotating body 1; a drive device 8 that rotates the ring-shaped rotating body 1 at a constant speed; A second reflector 2 that reflects the laser beam L toward a third reflecting mirror 2 provided on the ring-shaped rotating body 1, which is located at a position away from the rotating body 1 and where the cut welded pipe P does not come into contact with it. Laser oscillation in which a reflecting mirror 5 is provided, its axis coincides with the ring-shaped rotating body 1, and the laser oscillation is rotated by a drive device 11 in synchronization with the ring-shaped rotating body 1. It is provided at the axial center position of the ring-shaped rotating body 4 on the machine side and the ring-shaped rotating body 4 on the laser oscillator side, and rotates integrally with the ring-shaped rotating body 4 on the laser oscillator side to generate a laser beam. A first reflecting mirror 7 that reflects a laser beam L emitted from an oscillator 6 onto a second reflecting mirror 5, a ring-shaped rotating body 1 provided with the cutting nozzle 3, and a driving device 8 are mounted. A welded pipe laser cutting device comprising a moving device 10 that moves a movable frame 9 in the discharge direction at the same speed as the discharge speed of the welded pipe P.