Laser High-speed Marking Motion Control System Design And Algorithm Research

As an emerging processing technology,laser marking has become one of the most extensive applications of laser processing.This article analyzes and studies the core algorithms of motion control,including acceleration and deceleration speed planning algorithms,interpolation algorithms,and speed forward planning algorithms.A speed forward interpolation algorithm based on continuous small line segment trajectories is proposed,and then the controller hardware architecture based on ARM+FPGA,The overall design of the laser marking high-speed motion control system was completed,and finally the speed-looking algorithm was simulated and experimentally verified and successfully applied to the laser marking control system.The main research work of this paper is as follows:(1)Interpolation algorithm and acceleration and deceleration control algorithm are studied.Due to the many segments of the S-type acceleration and deceleration speed curve,in order to simplify the calculation,an iterative search method is proposed to calculate the actual maximum speed.Be prepared for theory.(2)An adaptive speed look-ahead algorithm is proposed,focusing on the analysis of several key issues that need to be solved in speed look-ahead planning.First,a speedlooking planning method with two-way search is proposed to test the acceleration and deceleration conditions.Secondly,the analysis based on continuous small line segments is further analyzed.The corner transfer model and the corner transfer speed constraint model.Finally,the problem of fixed or dynamic determination of the number of look-ahead segments of the speed look-ahead is studied,and a speed look-ahead algorithm based on the number of self-adaptive look-ahead segments of continuous small line segments is designed and implemented.(3)According to the basic principle of galvanometer scanning laser processing and the working process of laser marking machine,based on the ARM+FPGA controller hardware architecture,the overall design of the laser marking high-speed motion control system is completed.(4)Selecting the typical continuous small line segment motion trajectory,the adaptive speed look-ahead algorithm proposed in this paper was simulated by MATLAB,and the actual processing experiment was carried out on the laser marking experiment platform.Simulation and experimental results show that the processing efficiency has increased by31.65%.In summary,the adaptive speed forward-looking algorithm proposed in this paper realizes the smooth transition of corners during processing,which can improve processing efficiency while satisfying the quality of motion processing.