System and method for processing dynamic focusing scanning spot track of optical fiber laser or disk laser

A dynamic focusing, fiber laser technology, used in laser welding equipment, metal processing equipment, manufacturing tools, etc., can solve the problems of unstable welding spot energy, limited working range, cumbersome equipment integration, etc., to improve welding quality, The effect of large processing range and wide application value

Inactive Publication Date: 2010-12-15
SHANGHAI INST OF LASER TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a fiber laser or disc laser to overcome the defects of the existing laser scanning welding technology, such as slow welding speed, lim

Method used

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  • System and method for processing dynamic focusing scanning spot track of optical fiber laser or disk laser
  • System and method for processing dynamic focusing scanning spot track of optical fiber laser or disk laser
  • System and method for processing dynamic focusing scanning spot track of optical fiber laser or disk laser

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Embodiment Construction

[0019] Depend on figure 1 and figure 2 As shown, a fiber laser or disc laser dynamic focusing scanning point track processing system includes a laser 1, a collimator beam expander 2, a scanning head 21, a PC control system 16, and an object stage 20, wherein the The laser 1 is a fiber laser or a disk laser, the fiber output head of the fiber laser or the disk laser is connected to the collimating beam expander 2, and the collimating beam expander 2 is connected to the scanning head 21; the scanning The head 21 is composed of a Z-axis dynamic focus module 3, an X-axis mirror 7, an X-axis digital servo motor 8, a Y-axis mirror 9, and a Y-axis digital servo motor 10. The X-axis mirror 7 is installed on the X-axis digital On the rotating shaft of the servo motor 8, the Y-axis mirror 9 is installed on the rotating shaft of the Y-axis digital servo motor 10, and the light beam output by the fiber laser or the disk laser is successively passed through the collimating beam expander...

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Abstract

The invention discloses a system and a method for processing dynamic focusing scanning spot track of optical fiber laser or disk laser. Aiming at the defects in scanning technology of the current laser scanning welding system, an optical fiber laser or a disk laser, a PSD displacement sensor, and a dynamic focusing fast scanning head driven by a high-accuracy hollow-shaft linear motor are adopted for implementing loop closing and real-time control of a dynamic focusing module, in order to perform spot scanning processing of fast spot track on workpiece. The system and the method have the advantages of large processing scope, high quality, fast welding or spotting speed and high efficiency, in addition, accuracy and welding quality of the system are enhanced effectively, 3D welding can be realized, and extensive application value in the field of advanced manufacture is achieved.

Description

technical field [0001] The invention relates to a fiber laser or disc laser dynamic focusing scanning point track processing system and method thereof, belonging to the technical field of laser processing. Background technique [0002] Taking laser scanning welding as an example, laser scanning welding (Scanner Welding), also known as laser remote welding (Remote Welding), is a processing technology that uses a scanning mirror group to obtain light spot offset to achieve welding. Conventional laser welding systems mainly use fixed beams, workpiece displacement or robotic hand-held laser welding heads for welding processing. Compared with the conventional laser welding process, the biggest advantage of laser scanning welding is that the production efficiency is greatly improved. The laser beam moves through the rapid deflection of the scanning mirror, the light spot moves rapidly, the time for positioning is significantly reduced, and the processing time is greatly reduced. ...

Claims

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Application Information

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IPC IPC(8): B23K26/20B23K26/02B23K26/04B23K26/42B23K26/082B23K26/21
Inventor 沈可余王又良姜兆华郁德明潘涌张伟陈俊
Owner SHANGHAI INST OF LASER TECH
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