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System Components Of Laser Cutting Machine

Views: 0     Author: Site Editor     Publish Time: 2019-10-24      Origin: Site

1. The main part of the machine tool: the machine part of the laser cutting machine, the mechanical part that realizes the movement of the X, Y, and Z axes, including the cutting work platform. It is used to place the workpiece to be cut and can move it correctly and accurately according to the control program, usually driven by a servo motor.

2. Laser generator: a device that generates a laser light source. For the purpose of laser cutting, except for a few occasions that use YAG solid-state lasers, most of them use CO2 gas lasers with higher electrical-optical conversion efficiency and higher output power. Because laser cutting requires high beam quality, not all lasers can be used for cutting. The Gaussian mode is suitable for less than 1500W, low-order mode carbon dioxide lasers 100W-3000W, and multimode above 3000W.

3. External optical path: Refractive mirror, used to guide the laser in the required direction. In order to prevent the beam path from malfunctioning, all mirrors must be protected by a protective cover, and a clean positive pressure protective gas should be introduced to protect the lens from contamination. A set of lenses with good performance will focus a beam with no divergence angle into an infinitely small spot. Generally, a lens with a focal length of 5.0 inches is used. The 7.5-inch lens is only used for >12mm thick materials.

4. Numerical control system: control the machine tool to realize the movement of X, Y, Z axis, and also control the output power of the laser.

5. Regulated power supply: connected between the laser, CNC machine tool and the power supply system. Mainly play a role in preventing external grid interference.

6. Cutting head: It mainly includes parts such as cavity, focusing lens holder, focusing lens, capacitive sensor and auxiliary gas nozzle. The cutting head driving device is used to drive the cutting head to move along the Z axis according to the program, and is composed of a servo motor and a screw or gear and other transmission parts.

7. Operating table: used to control the working process of the entire cutting device.

8. Water chiller: used to cool the laser generator. A laser is a device that converts electrical energy into light energy. For example, the conversion rate of a CO2 gas laser is generally 20%, and the remaining energy is converted into heat. The cooling water takes away the excess heat to keep the laser generator working normally. The chiller also cools the external light path reflector and focusing mirror of the machine tool to ensure stable beam transmission quality and effectively prevent the lens from being deformed or broken due to excessive temperature.

9. Gas cylinders: Including the working medium gas cylinders and auxiliary gas cylinders of the laser cutting machine, which are used to supplement the industrial gas for laser oscillation and supply auxiliary gas for the cutting head.

10. Air compressor, air storage tank: provide and store compressed air.

11. Air cooling dryer, filter: used to supply clean and dry air to the laser generator and beam path to keep the path and reflector working normally.

12. Ventilation dust collector: extract the smoke and dust produced during processing, and filter it, so that the exhaust gas can meet environmental protection standards.

13. Slag discharge machine: remove the leftover material and waste generated during processing.


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