Market Application Background
With the rapid development of key industries such as semiconductors, 3C electronics, automobiles, and precision manufacturing in my country, the quality, efficiency, and environmental friendliness of industrial cleaning are receiving increasing attention. Laser cleaning, as a green technology that eliminates the need for chemical cleaning agents, generates no secondary waste, and consumes low energy, is rapidly becoming a hot topic in the industrial cleaning field.
Laser cleaning uses a high-energy continuous or pulsed laser beam to instantly focus on contaminants on the substrate surface, achieving a highly efficient "ablation" cleaning process that greatly reduces damage to the substrate material and environmental pollution.
Laser cleaning has a wide range of applications; almost all common pollutants in production and daily life can be treated with laser cleaning technology.
Traditional industrial cleaning solutions:
Traditional industrial cleaning processes mainly rely on mechanical and chemical cleaning, which often face problems such as low efficiency, high cost, and environmental pollution.
Chemical cleaning: This method uses chemical reactions to remove surface contaminants. While highly efficient, the chemicals can be harmful to the environment and workers, and often require additional treatment to minimize chemical residue.
Mechanical cleaning: Removes surface dirt using physical methods such as abrasion or brushing. It is direct but may damage the substrate surface, especially when dealing with thinner materials, limiting its application.
Positive motion technology solutions:
In response to existing market demands, Zhengdong has developed a laser cleaning solution based on an open laser galvanometer motion controller. This solution can be used in conjunction with equipment such as feeders, conveyor belts, and robotic arms to achieve large-scale and high-precision cleaning operations.
This solution eliminates the need for chemical cleaning solutions, abrasion, stress, and consumables, enabling non-contact, high-speed laser galvanometer cleaning of contaminants on substrate surfaces. It also supports multiple cleaning trajectory controls, primarily employing a laser marking-style scanning-filling mode. The spiral scanning path mode reduces the occurrence of un-ablated and re-ablated areas, improving overall cleaning uniformity and efficiency, and providing users with a sustainable and environmentally friendly laser cleaning solution.
01. Application of Open-Type Laser Galvanometer Motion Controller in Laser Cleaning
Schematic diagram of laser cleaning process
Pain points of traditional laser cleaning solutions
• Independent control of the PLC and laser galvanometer board makes application software development complex and cumbersome.
Traditional motion control cards and galvanometer cards rely on industrial PCs, resulting in relatively high control costs.
The application scenarios for multi-vibration lenses and multi-laser devices have poor scalability.
Design of a positive motion laser cleaning solution
Laser Cleaning Application Demonstration Case
It was developed using third-party configuration software and the RTSys programming platform for positive motion. It supports bus or pulse servo control, laser power control, and various cleaning trajectory controls.
1. Operating Procedures:
2. Laser cleaning effect diagram:
●Left side: After laser cleaning, the surface is smoother and the color is more uniform, with no damage to the substrate.
●Right side: Untreated raw rusted metal sheet, with a large number of rust spots on the surface.
Advantages of the solution
The embedded laser galvanometer motion controller integrates motion control, galvanometer control, and laser control functions.
• Supports interaction with third-party HMI configurations via the standard MODBUS protocol, facilitating rapid development and delivery by equipment system vendors;
• Flexible laser power adjustment allows for free adjustment of laser parameters based on laser type and wiring configuration;
• Supports dual-galvanometer, dual-laser control, improving cleaning and processing efficiency;
• Supports synchronous control function, which adjusts laser power and movement speed in real time to ensure optimal cleaning effect, avoid over- or under-ablation, and improve overall cleaning quality;
• It requires no chemical cleaning solutions, no consumables, and does not generate secondary pollutants, making it safe and environmentally friendly.
Solution Hardware Configuration
02. Open-type laser galvanometer motion controller ZMC408SCAN-V22
The stand-alone laser galvanometer motion controller integrates laser control, galvanometer control, and bus axis/pulse axis control, helping you achieve a highly efficient and precise EtherCAT bus motion control + laser galvanometer solution.
• 4. 16-axis motion control, supporting point-to-point and multi-axis synchronous control;
• Onboard 4-channel differential pulse axis interface + 1-channel dedicated handwheel interface;
• Two laser galvanometer interfaces with feedback, one dedicated laser power supply interface for LASER and one for FIBER;
• The integration of laser galvanometer control and motion control allows for the flexible construction of laser processing systems with multi-axis linkage and other methods;
• Supports 1D/2D/3D PSO functions, enabling visual imaging, precision dispensing, and laser energy control;
• Onboard 24 general purpose inputs and 20 general purpose outputs, including 4 high-speed color mark latches, 4 PSOs and 8 PWM outputs;
The integration of laser galvanometer control and motion control allows for the flexible construction of laser processing systems with multi-axis linkage and other methods.
