Application of motion control system in laser cutting industry

In the field of material processing, laser technology has gradually become the preferred choice for industrial processing. Whether metal or non-metal materials, lasers can efficiently and accurately complete processing tasks, and achieve no deformation, small thermal reactions, and smooth edges. At present, laser processing tasks include cutting, carving, marking, welding, cleaning, etc. It is widely used in many industries such as clothing, footwear, accessories, furniture, sheet metal, and automobiles.

The core equipment of laser equipment includes lasers, laser heads, and motion control systems. If lasers and machine tools are the hands and bodies of workers, then the motion control system is the brain, the control assembly that controls every move of the laser machine.

The main function of the motion control system is to control the speed, torque, and motion position of the electric motor. With the development of science and technology, the functions of motion control systems continue to enhance and can be interconnected with the outside world, gradually evolving into precise control systems suitable for various complex processing.

At present, the mainstream control system solution for laser machines is motion control cards, which are upper level control units based on PCs and industrial PCs, used in various motion control scenarios (including displacement, speed, acceleration, etc.). It can emit continuous, high-frequency pulse trains, control the speed of the motor by changing the frequency of the pulses emitted, and control the position of the motor by changing the number of pulses emitted.

In the laser processing field, the motion control system must not only solve the axial motion problem of the machine tool, but also accurately control the laser output. Many data, such as laser power, focus, motion speed, auxiliary gases, material absorption, etc., require the operation and output of motion control systems. It is very accurate for controlling the motion trajectory of the laser beam. No data parameters will be lost. Otherwise, the processing of the workpiece cannot be completed normally. The edges of the burrs will have burrs. If the workpiece is damaged, it wastes the material. Therefore, for lasers and technicians, choosing the appropriate motion control system is very important.

Advanced laser control systems typically come with sensor modules that can monitor changes in temperature, pressure, height, air pressure, and other factors during the machining process based on the sensors on the laser machine. Real time calculations and adjustments are made to keep the machining action of the machine tool at the ideal setting.