Uma máquina de marcação a laser , utilizada para gravar, gravar e marcar diversos materiais , é composta por vários componentes essenciais. Este artigo fornece uma visão geral dos principais componentes e acessórios que compõem uma máquina de marcação a laser, incluindo seus diferentes tipos e aplicações.
Introdução às máquinas de marcação a laser
Uma máquina de marcação a laser é um dispositivo versátil que utiliza feixes de laser para criar marcações em uma ampla gama de materiais. Essas marcações são produzidas pela vaporização do material da superfície, revelando as camadas subjacentes e resultando em padrões, logotipos e textos complexos. As máquinas de marcação a laser são categorizadas em vários tipos, incluindo máquinas de marcação a laser de CO2, máquinas de marcação a laser semicondutor, máquinas de marcação a laser de fibra e máquinas de marcação a laser YAG. Elas encontram aplicações em diversos setores, como eletrônicos, circuitos integrados (CI), telecomunicações, fabricação de hardware, joias, componentes automotivos e muito mais.
Types of Laser Marking Machines
The market primarily features CO2 and YAG laser marking machines, with semiconductor laser marking machines gradually replacing YAG models. Additionally, advanced options like end-pumped laser markers, fiber laser markers, and ultraviolet (UV) laser markers cater to specific requirements.
Advantages of Fiber Laser Marking Machines
As máquinas de marcação a laser de fibra estão ganhando popularidade, especialmente na indústria eletrônica, devido ao seu design integrado, tamanho compacto, baixo consumo de energia, vida útil prolongada, alta eficiência e requisitos mínimos de manutenção. Essas máquinas produzem feixes de laser de alta qualidade com tamanhos de ponto precisos, tornando-as ideais para diversas aplicações.
A laser marking machine comprises several core components and accessories, including:
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1. Galvo Scanner System
The galvo scanner system, also known as a galvanometer scanner, plays a crucial role in precisely controlling the laser beam's position and movement. It consists of two mirrors, the X-mirror and Y-mirror, responsible for directing the laser beam to specific locations on the workpiece. Modern fiber laser marking machines typically incorporate digital galvo scanners with a spot size typically around 10mm.
2. F-theta Scan Lens
The F-theta scan lens, also called a flat field focusing lens, is essential for focusing the laser beam onto a flat plane. It ensures consistent and accurate laser marking by converging the beam precisely on the workpiece surface.
3. Laser Locator (Laser Pointer)
Laser locators, emitting visible red or green light, guide the laser beam's path. Since the 1064nm laser beam is invisible, these locators align visible laser light (typically at 650nm) with the invisible laser beam, enabling operators to visualize the marking path accurately.
4. Laser Xenon Lamp and Laser Krypton Lamp
Laser xenon lamps and laser krypton lamps serve as light sources for various laser equipment. They emit intense light pulses used in applications such as laser welding, spectroscopy, and powering solid-state lasers. Laser xenon lamps are typically employed in pulsed applications, while laser krypton lamps provide continuous illumination for solid-state lasers.
The notation "8X125X270" refers to the specifications of these lamps, where "8" represents the outer diameter, "125" represents the arc length, and "270" represents the total length of the lamp.
In the event of lamp replacement, the following steps are recommended:
Close the water cooling system and the laser power supply, open the upper three-panel cover, remove the lamp or crystal to be replaced, install the new lamp or crystal, and adjust the laser power supply current to around (15~20) A. Place a small piece of wood or black paper between the front membrane and the beam expander to observe the laser's burning pattern.
If the pattern is not visible, make slight adjustments to the three knobs on the front membrane holder until the pattern becomes visible. Finally, turn off the laser power supply.
It's important to note that if a krypton lamp needs replacement, do so when the current value is adjusted to 25A and the laser still cannot function properly.
Conclusion
In conclusion, a laser marking machine consists of essential components and accessories that contribute to its precise marking capabilities. When selecting a laser marking machine, it's essential to consider the specific requirements of your application to ensure optimal results. These versatile machines continue to play a significant role in a wide range of industries, enabling high-precision marking and engraving on various materials.