Distance and beam splitting energy adjustable three-light-spot laser welding optical system

A laser welding and optical system technology, applied in laser welding equipment, welding equipment, metal processing equipment, etc., can solve the problems of high price, limited optical fiber core diameter difference, and difficult processing of mirror surface, so as to improve the quality of weld seam and structural design Novelty, the effect of meeting the needs of processing in all directions

Inactive Publication Date: 2017-09-15
SHANGHAI EMPOWER AUTOMATION TECH CO LTD
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  • Application Information

AI Technical Summary

Problems solved by technology

The former scheme, the optical fiber laser splitting scheme represented by IPG, the direction of the three light spots after focusing through the conventional external optical path is often random, and there are many restrictions on the direction of laser welding, and the high-power special optical fiber is very expensive. The light splitting energy of the three spots and the distance between the spots are not adjustable; for the latter plan, there is a splitting plan represented by Laserline, through arraying and splitt

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  • Distance and beam splitting energy adjustable three-light-spot laser welding optical system
  • Distance and beam splitting energy adjustable three-light-spot laser welding optical system
  • Distance and beam splitting energy adjustable three-light-spot laser welding optical system

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Embodiment Construction

[0021] Such as figure 1 , figure 2 and image 3 As shown, this specific embodiment adopts the following technical solution: a three-spot laser welding optical system with adjustable spacing and splitting energy, including: fiber laser self-exit point 1 and focal plane 8, and also includes aberration-eliminating collimating lens group 2 , the first circular wedge mirror 3, the second circular wedge mirror 4, the first three-beam splitting prism 5, the second three-beam splitting prism 6 and the aberration-elimination focusing lens group 7; 1. Aberration-eliminating collimating lens group 2. The first circular wedge mirror 3. The second circular wedge mirror 4. The first three-beam splitting prism 5. The second three-beam splitting prism 6. Aberration-eliminating focusing mirror The group 7 and the focal plane 8 are arranged in a spaced manner from top to bottom and are concentric with each other; the first circular wedge mirror 3 and the second circular wedge mirror 4 are pa...

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PUM

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Abstract

The invention discloses a three-spot laser welding optical system with adjustable spacing and splitting energy. The invention has a novel structural design, and adopts a combination of a circular wedge mirror and a three-beam splitting prism, based on the beam caused by the adjustable spacing of the double circular wedge mirror. Translational characteristics, based on the beam splitting characteristics and edge angle characteristics of the double-chip three-beam splitting prism, and based on the rotation characteristics of the central axis of the circular wedge mirror and the three-beam splitting prism, a focusing three-spot optical system is realized. The three-spot spacing, energy and direction All can be adjusted, suitable for fiber laser laser welding applications with any fiber core diameter, especially helpful to improve the weld seam quality of welded parts in laser brazing.

Description

Technical field: [0001] The invention relates to the field of laser welding, in particular to a three-spot laser welding optical system with adjustable spacing and light splitting energy. Background technique: [0002] The industrial laser processing industry includes laser cutting, welding, marking, drilling, micromachining, cladding, quenching, surface treatment, 3D printing, etc., covering laser processing of various commonly used metal or non-metal materials, especially Laser welding, marking, 3D printing and other laser processing industries have more representative requirements for laser beam diversity. [0003] Laser welding, from the initial single-focus welding, to the later derived bi-focus welding, tri-focus welding, etc., aims to obtain better welding effect and quality. Bi-focus welding is a process in which the laser beam is specially shaped to focus two beams of the same energy and the same size, which fall symmetrically on both sides of the weld for processi...

Claims

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Application Information

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IPC IPC(8): B23K26/06B23K26/24
CPCB23K26/0665B23K26/24
Inventor 邵华江
Owner SHANGHAI EMPOWER AUTOMATION TECH CO LTD
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