The weld seam tracking system of laser welding machine is a welding process management system manufactured based on laser vision sensing, which can inspect all aspects of the weld seam without direct contact, and also has good collar density and anti-electromagnetic interference capability, so it is now a major development direction for weld seam inspection. Here we will introduce the main components of the laser weld seam tracking system.

What are the important components of a laser weld seam tracking system?

1、Laser source

The laser source in a stable laser seam tracking system, which uses a semiconductor as the working medium, is not only small in size and simple in structure and high in efficiency, but also works very fast and has a wide wavelength range, and is able to start scanning the seam through a diode that emits light and transforms it into a linear laser strip through a column lens.

2、Camera and filter

The camera in the laser seam tracking system is an industrial camera, which has good reliability and stability and a high frame rate. The filter in the laser seam tracking system is a narrow band filter, which is mainly used to match the center band of the laser light source. The filter is installed in front of the camera lens to effectively eliminate the interference of the arc light emitted during welding, so as to prevent some characteristic signals of the weld seam from being drowned by the arc light and not captured by the laser weld seam tracking system.

3、Auxiliary device

The laser welding seam tracking system is supported by a cooling soot blower and a light baffle and anti-spatter transparent sheet. The cooling soot blower helps the laser work stably in a high heat environment and also prevents welding fumes from affecting the photography by blowing air between the torch and the sensor. Anti-spatter transparent sheet can block the welding arc and spatter into the shooting range.

Any device is made up of several components, and these devices introduced above are the main components in the laser weld seam tracking system. By working together, these components can make it a popular laser weld seam tracking system that can be more accurate in the inspection of weld seams.