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Welding laser head coaxial vision lens group and welding laser coaxial system

A laser head and laser focusing mirror technology, applied in welding equipment, laser welding equipment, metal processing equipment, etc., can solve the problems of the welding surface cannot be observed in real time, cannot be inspected in real time, and the welding quality cannot be judged, so as to reduce the influence of heat, The effect of improving welding accuracy and efficiency and increasing welding strength

Pending Publication Date: 2021-03-05
UNITED WINNERS LASER CO LTD
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Problems solved by technology

[0002] In laser welding, the laser welding head is often given a preset walking track according to the characteristics of the weld seam, and then the welding head completes the welding operation after walking according to the preset walking track. During the walking process, the welding surface (the surface of the welded workpiece) cannot be observed in real time , making it impossible to check and judge welding quality in real time

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  • Welding laser head coaxial vision lens group and welding laser coaxial system
  • Welding laser head coaxial vision lens group and welding laser coaxial system

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Embodiment Construction

[0023] The following examples are further explanations and supplements to the present invention, and will not constitute any limitation to the present invention.

[0024] Such as figure 1 Shown, a kind of welding laser head coaxial visual lens group, comprises: the imaging objective lens 7 that is made up of the first positive and negative lens group, the imaging eyepiece 9 that is made up of the second positive and negative lens group and variable diaphragm 8; The imaging objective lens 7 and the imaging eyepiece 8 are symmetrical with respect to the iris 9 ; imaging light enters the imaging eyepiece 9 from the imaging objective 7 and the iris 8 in sequence.

[0025] This design adopts mirror groups with symmetrical achromatic structure, that is, the first positive and negative lens groups and the second positive and negative lens groups are symmetrical with respect to the variable diaphragm, and the positive lens in the positive and negative lens groups produces negative sph...

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Abstract

The invention discloses a welding laser head coaxial vision lens group and a welding laser coaxial system. The welding laser head coaxial vision lens group comprises an imaging objective lens composedof a first positive and negative lens group, an imaging eyepiece composed of a second positive and negative lens group and an iris diaphragm, wherein the imaging objective lens and the imaging eyepiece are symmetrical relative to the iris diaphragm; and imaging light sequentially enters the imaging eyepiece from the imaging objective lens and the iris diaphragm. According to the design, the lensgroup with a symmetrical achromatic structure is adopted, that is, the first positive and negative lens group and the second positive and negative lens group are symmetrical relative to the iris diaphragm, so that the positive lenses in the positive and negative lens groups generate negative spherical aberration, the negative lenses generate positive spherical aberration, and thus, the spherical aberration can be well corrected by combining the positive and negative lenses.

Description

【Technical field】 [0001] The invention relates to the field of laser welding, in particular to a welding laser head coaxial visual mirror group and a welding laser coaxial system. 【Background technique】 [0002] In laser welding, the laser welding head is often given a preset walking track according to the characteristics of the weld seam, and then the welding head completes the welding operation after walking according to the preset walking track. During the walking process, the welding surface (the surface of the welded workpiece) cannot be observed in real time , resulting in the inability to check and judge the welding quality in real time. 【Content of invention】 [0003] To sum up, in order to solve the above technical problems, the present invention has the following technical solutions: In order to overcome at least one defect (deficiency) described in the above-mentioned prior art, the present invention provides a welding laser head coaxial visual mirror assembly ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/21B23K26/046
CPCB23K26/21B23K26/046
Inventor 韩笑周航牛增强韩金龙
Owner UNITED WINNERS LASER CO LTD
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