High precision laser linkage platform to help precision processing

With the trend of industrial intelligence and precision processing, the demand for laser precision processing in precision 3C industry, machinery and equipment, new energy vehicles and other industries has developed rapidly, making the application of laser processing technology in the industrial field more comprehensive promotion.

Due to the inherent nonlinear characteristics between optics and scanners, there is distortion in the scanning process of the galvanometer. As the "leader of industrial laser 3D dynamic focusing system", FEELTEK has designed a new online compensation algorithm to eliminate optical distortion and other problems.

High precision laser linkage platform

Galvanometer platform linkage

This solution integrates the advantages of high acceleration of the galvanometer and the direction of size expansion of the platform. The 2D galvanometer (G-X, G-Y) and XY platform using linear motor (Stage-X, Stage-Y) are mixed into the same coordinate system for linkage control. In the meantime, the energy accumulation phenomenon of sharp corners or small features is optimized, and the scars or errors caused by secondary processing at the same position are reduced or eliminated, so that the processing efficiency is improved, the beat is shortened, and the yield is improved.

Linkage algorithm optimization

The moving speed of the galvanometer is fast, and the moving range of the platform is wide. The action of the galvanometer and platform is decomposed into the movement of the galvanometer and platform when the platform is linked, which requires both the fastest precision and speed of the beat. The frequency division control algorithm, also known as motion vector decomposition, makes the galvanometer play a maximum role, shares the work of the platform, and reduces the workload of the platform to a minimum; At the same time, the optimization algorithm makes the galvanometer work in the right place.

PWM control

The PWM pulse is generated by the controller, and after passing through the servo amplifier, the current loop of the Motor is controlled at the moment. At the same time, the grating ruler signal is directly fed back to the controller, and then the full closed-loop control is formed. Obtain higher control and real-time, shorten the control cycle.

Application areas (The solution can be applied to but is not limited to the following application areas)

Panel industry large-scale PI film cutting, panel cutting, PCB plate making and drilling, precision mold surface texture processing, fine marking of etched templates, etc.

When the laser has changed from a tool to an innovative tool, the dynamic focusing system with process connotation is among the contributors, and the teams and enterprises specializing in the development of dynamic focusing systems are given more expectations. Based on the strategy of being the leader of industrial laser 3D Dynamic focusing system, Feretech has deeply studied the application process of dynamic focusing system, and successively introduced the pre-focusing dynamic focusing system based on laser output beam, the post-focusing dynamic focusing system and the dynamic focusing unit DFM (Dynamic Focus Module) which can be customized flexibly.

In the future, Ferutec will continue to strengthen cooperation with equipment integrators, put more actions to achieve the complete landing of processing technology and process verification of key indicators, and provide more industry integrators with a complete closed-loop equipment process plan.

Source: Ferratek