Aplanatic light path control device of laser cutter

A laser cutting machine and control device technology, applied in laser welding equipment, manufacturing tools, welding equipment, etc., can solve the problems of complex structure, high cost, low precision, etc., and achieve stable movement, improved cutting quality, and compact installation space Effect
CN101537535AInactive Publication Date: 2009-09-23WUHAN FARLEY LASERLAB CUTTING WELDING SYST ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
WUHAN FARLEY LASERLAB CUTTING WELDING SYST ENG CO LTD
Publication Date
2009-09-23
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides an aplanatic light path control device of a laser cutter. The device comprises a laser source, a compensation reflector mechanism on the light path and a compensation mechanism driver thereof, a reflector on a laser cutting head, and the laser cutting head and a driver thereof. The compensation reflector mechanism and the laser cutting head share a linear guide rail pair on a cross beam, and the compensation mechanism driver and the laser cutting head driver share a transmission pair on the cross beam; and the motion direction of the compensation reflector mechanism is corresponding to that of the laser cutting head and the motion begins and stops at the same time, and the ratio of the motion velocity V1 of the compensation reflector mechanism on the cross beam linear guide rail pair and the motion velocity V2 of the laser cutting head on the cross beam linear guide rail pair is as follows: V1:V2=1:2. The motion distance of the compensation reflector mechanism is Y when the motion distance of the laser cutting head along the Y axis is 2Y, thus ensuring constant light path length.
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Description

technical field

[0001] The invention relates to an optical path control device for a laser cutting machine. The device is a matching device for the laser cutting machine, and is used to keep the transmitted optical path length constant during the laser cutting process, so as to ensure the same cutting effect within the effective processing range. quality. Background technique

[0002] During the laser cutting process, due to the influence of the beam divergence angle of the laser itself, the change of the optical path length will lead to the change of the diameter of the beam before focusing. The larger the diameter of the incident beam, the smaller the diameter of the focal spot. In order to reduce the change of the focus spot size caused by the change of the beam size before focusing, the method of adding an equal optical path device is adopted to compensate the optical path, that is, when the optical path increases due to remote processing, the compensation optical path i...

Claims

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