Coaxial machine vision optical imaging system for laser processing head

Abstract

The present invention discloses a coaxial machine vision optical imaging system for a laser processing head. The system comprises a first biconvex mirror, a first biconcave mirror, an adjustable diaphragm, a second biconvex mirror, a third biconvex mirror, and a second biconcave mirror. The first biconvex mirror, the first biconcave mirror, the adjustable diaphragm, the second biconvex mirror, thethird biconvex mirror and the second biconcave mirror are spherical lenses; the first biconvex mirror, the first biconcave mirror, the adjustable diaphragm, the second biconvex mirror, the third biconvex mirror and the second biconcave mirror are circular and center axes of the first biconvex mirror, the first biconcave mirror, the adjustable diaphragm, the second biconvex mirror, the third biconvex mirror and the second biconcave mirror are coaxial. The coaxial machine vision optical imaging system employs a full spherical mirror optical path structure, is easy to process, easy for batch andconsistency based on the spherical mirrors, employs three optical materials and cooperatively uses focus lenses to obtain good optical imaging quality, is suitable for optical fiber output laser processing head coaxial machine vision optical imaging, and is especially suitable for all the optical fiber output laser processing head coaxial machine vision optical imaging by taking fused quartz as focus lens materials.

Description

technical field [0001] The invention relates to the technical field of industrial machine vision imaging, and more specifically, the invention relates to a coaxial machine vision optical imaging system for a laser processing head. Background technique [0002] Laser processing technology covers various laser processing technologies such as laser cutting, welding, quenching, drilling, micromachining, etc., and utilizes the basic characteristics of the interaction between laser and matter. Due to the advantages of non-contact between laser beam and processing materials, processing speed and quality, laser processing technology is an irreplaceable high-tech. [0003] At present, laser cutting occupies the main position of the entire laser processing industry, among which fiber output laser cutting is the most important. Fiber output lasers include fiber lasers and semiconductor fiber-coupled lasers. Due to the flexibility of fibers and good coupling output to near-infrared bea...

AI Technical Summary

Problems solved by technology

In laser processing, due to the large laser power, it is easy to reflect a large amount of laser light in the processing of the plate, even if it is equipped with a filter, it is easy to burn the optical lens or even the CCD / CMOS chip; the two are due to the coaxial machine vision imaging It is easier to locate and calibrate than the rangefinder application, and the optical effect is better in detecting the surface of the laser processing plate, so the rangefinder machine vision imaging is not commonly used

Images