For high-power laser-cut metal materials, there are many factors affecting the quality of cutting. In summary, there are mainly the geometrical accuracy of the equipment itself, such as the dynamic rigidity of the motion axis, acceleration, laser beam mode and quality, performance of optical components, The stability of the light guiding system, as well as the common power, speed, nozzle spacing, nozzle aperture, cutting aid gas purity and pressure, optical path distance, focal length and size of the focused spot, etc., of course, the subroutine when "starting the knife" And the programming path is also crucial; in addition, due to the difference in material, plate thickness and material surface state, there are many unpredictable variables in the laser cutting process, which will affect the stability and final quality during the cutting process. In view of some of the above unpredictable influencing factors, the real-time intelligent control system in the cutting process is studied, and no manual intervention in the cutting process is required (except for some accidental touch alarms), so as to improve the stability of the cutting process, cutting efficiency and The purpose of cutting quality.

Hardware composition of intelligent cutting system

(1) The intelligent cutting control system is used to timely analyze the data fed back by the cutting state monitor, and adjust the cutting parameters in real time, and control the cutting auxiliary gas component, and change the focus position to ensure the processing quality and improve the processing efficiency. When the cutting failure occurs, the processing can be terminated in time to reduce or even eliminate the occurrence of defective products.

(2) The cutting state monitor is used to monitor the position of the molten pool during the processing in real time, and obtain the raw data of the processing state, and feed back to the control system.

(3) The gas control system is used to control the path and composition of the cutting aid gas.

(4) The optical control system is used to control the beam divergence angle and focus position during laser processing.

Main functions and software development of intelligent cutting control system

(1) Focus search function Due to errors in materials and dimensions, optical lenses (including light source window mirrors, collimation beam expanders, mirrors, and focusing mirrors) have slight differences in processing, and these errors cause the same Different lens focus positions have different nuances. At the same time, when the laser cutting machine light guide system is installed, the various adjustment links and the type and cleanliness of the optical path gas will also cause the focus to drift, and the intelligent cutting control system can be automated and fast. Searching and determining the focus position is much more efficient than the previous manual adjustment method in terms of efficiency and accuracy. Accurate focus position is one of the key elements for achieving high quality and efficient cutting.

(2) High-speed perforation function Perforation is a necessary preparation before laser cutting is performed. For the traditional timed perforation process, there is a certain contradiction in efficiency and safety. To ensure that the perforation is completed quickly and reliably, a certain margin is usually left in the perforation time. In order to prevent the hole in the perforation process from exploding, the lens is contaminated. It also limits the punching power, but it also affects the piercing efficiency. In the intelligent cutting control system, since the perforation state can be monitored and controlled online, various process parameters can be predicted and controlled in advance before the occurrence of the molten pool blasting, and finally, the perforation can be completed at a high speed and high quality in a state of full power, and The end of the perforation process can be automatically judged, and the subsequent cutting is performed immediately after the end of the perforation, so the processing time is greatly shortened, the processing quality is ensured, and the influence of excess perforation energy on the ablation and thermal deformation of the bed is greatly reduced. .

(3) Cutting condition monitoring function When cutting thick metal materials, it is prone to bad cutting phenomenon such as burning or plasma cloud. This function can be used to detect real-time cutting metal radiation, focus brightness, plasma concentration and other information. Sampling analysis, automatically adjust the cutting parameters before the bad cutting or plasma cloud is generated, realize automatic deceleration and then accelerate, or automatically retreat and then execute the program to avoid material loss; before the failure or even failure, the processing can be terminated early. And can generate a large amount of monitoring data to provide a basis for process parameter improvement.

Conclusion

Intelligent cutting control system is the latest research result of Leading Laser Company. It integrates light, machine and electric technology. It is at the commanding height of laser cutting technology today, and the overall research and application is still in its infancy. The traditional timing and quantitative open-loop processing control mode is changed to the closed-loop control processing mode of online monitoring real-time analysis, which fully exploits the hardware potential of the existing laser processing platform, and stabilizes the processing quality without increasing the laser power and the machine speed. Increased processing efficiency and reduced energy loss and waste.

Air Levitation Centrifugal Blower

Air suspension centrifugal blower (single-stage high-speed centrifugal blower) is a new concept blower, which adopts three core high-end technologies of "super high speed direct motor", "air suspension bearing" and "high precision single-stage centrifugal impeller" A high efficiency, high performance, low noise, low energy consumption fan a new era. Is the use of aviation turbine design experience and painstaking research and development of a new generation of high-tech civilian products.

Folding single-stage centrifugal impeller

Impeller optional AL7075 (high-strength aviation aluminum), Ti, SUS and other materials, with excellent wear resistance, deformation resistance, the service life of 30 years. The impeller and the motor are connected in direct connection, the power transmission efficiency is 97%. Depending on the needs of the impeller casting, you can get the specific needs of the working conditions. The design adopts the frequency conversion adjustment mode to abandon the guide vane adjustment mode and make the adjustable range of the blower wider.

Folding oil-free air suspension bearings

Air-suspension bearings mainly include radial bearings and thrust bearings and other components. Before start-up there is a physical contact between the rotating shaft and the bearing. When starting, the rotating shaft and the bearing move relative to each other to form a hydrodynamic field where the hydrodynamic force forms a floating force. The floating force to make the rotary shaft in suspension and achieve the purpose of turning freely. This kind of bearing is different from the traditional ball bearing. There is no physical contact point between the rotary shaft and the bearing during operation, so there is no need for lubricating oil, and the energy loss is extremely low and the efficiency is very high. The utility model is suitable for various work environments. This technology can be applied to high-power high-speed machines up to 100,000 rpm. After rigorous testing, indicating that the number of starts up to 20,000 times the bearing, in full compliance with the design and practical requirements.

Fold super high speed FM motor

BLDCM permanent magnet brushless super high speed motor is the latest motor in the world with the development of permanent magnet material technology, semiconductor technology and control technology. Rotary shaft in operation at high speed of 20,000 - 200,000 revolutions, the efficiency of the engine up to 97%. Permanent magnet brushless super high speed motor is also equipped with digital control speed control device, the system control is simple. High speed, no vibration, low noise, small size, simple structure, high efficiency and energy saving, small electromagnetic radiation, is the most energy-saving green motor.

Folding fully automatic oil-free cooling system

Air suspension blowers feature a patented combination of oil-free, air-cooled, and water-cooled technology. The fin material is made of a very thermally conductive aluminum alloy (AL) material with no additional energy loss and simple construction. The air blower below 150HP using air self-cooling technology, air flow channel design is reasonable and ingenious, and excellent aerospace mechanical design and manufacturing technology supporting the design of the motor cooling wings. Large models above 200HP are equipped with a water-cooling medium internal circulation system, so there is no need for a separate cooling fan or supplementary cooling water. This cooling design ensures that the blower retains its outstanding and reliable performance during the hot summer months.

Noise reduction technology and internal vent valve

Blower internal vent bypass pipe with a vent valve and muffler, the shell made of carbon steel, the interior with sound-absorbing material. The air blower adopts pneumatic air venting valve in the airframe to ensure that the air blower has no effect on the safe shutdown under power off or abnormal conditions and is beautiful and generous. They are connected directly to the blower via flexible connections to reduce pressure losses and noise from the inlet lines. Filter and silencer for the steel shell, equipped with silencer material. Square or rectangular replaceable filter installed in the air inlet, with a good sound-absorbing material made of flaky structure of the overall import muffler, installed in the blower body between the air inlet and filter to reduce the import noise. Due to the high-tech air-suspension bearing technology, mechanical friction and vibration are completely avoided. After rigorous testing to prove that the machine at a distance of 1 meter from the machine noise level <80dB.

Folding high efficiency inverter and control system

Air suspension centrifugal blower itself has integrated local control and frequency conversion system in one, there is no need to set up a separate frequency control cabinet and operating cabinet. Through the fan's own control panel can be set to achieve a variety of functions and fluid temperature, motor speed, air pressure, air volume, power consumption parameters such as query. The system also supports digital remote control, monitoring functions, can be controlled by the central control room.

main feature

1, energy efficient

Air suspension centrifugal blower air bearings, direct technology, high efficiency impeller, permanent magnet brushless DC motor, no additional friction. Fan according to the output (adjustable volume 40-100%) automatically adjust the power consumption of the motor to maintain the high efficiency of equipment operation.

2, no vibration, low noise

Air bearings and direct connection technology, no vibration, fans do not need to set the sound insulation device; equipment, light weight, without setting a special foundation, the installation layout is simple and flexible.

3, no oil

Air blower uses air bearing technology, the system does not require lubricating oil system, to provide clean air to the special industries such as electronics, medicine, foodstuffs. Air bearing temperature reached 600 degrees, all the drawbacks of oil-bearing system has been successfully resolved.

4, no maintenance

There is no need for traditional fan gearbox and oil bearings, we use a series of high-tech impeller and motor do not use the coupling, direct connection, intelligent control system, the key components using AL7075 (aviation aluminum) These technologies ensure that the equipment is No maintenance, reducing the user's maintenance costs and improve the stability of the gas supply system.

5, operation and control convenience

Self-test and constant pressure operation, load / no-load operation, overload control, anti-surge control, etc. can be realized on the personal computer for fan speed, pressure, temperature and flow rate. The fan adjusts the flow by adjusting the number of revolutions of the impeller. According to the inhaled air temperature and pressure changes, adjust the number of revolutions can easily adjust the flow. Traffic can be adjusted automatically and manually.

6, equipment installation space is small

Air suspension centrifugal blower equipment, light weight, small size, easy installation, users can save a lot of construction and auxiliary electrical control system investment.

Collapse edit this section main advantage

High reliability, easy maintenance

Due to the adoption of two core high-tech technologies, "High-speed direct-coupled motors" and "air-suspension bearings", the system of growth gears, couplings, lubrication systems and cooling fans necessary for conventional single-stage high speed turbine blowers is discarded Greatly improve the product's process performance and reliability, to avoid noise, vibration and waste oil and other secondary pollution caused by the environment, greatly reducing the equipment maintenance workload, saving equipment maintenance costs

air suspension centrifugal blower

The main advantage

High reliability, easy maintenance

Due to the adoption of two core high-tech technologies, "High-speed direct-coupled motors" and "air-suspension bearings", the system of growth gears, couplings, lubrication systems and cooling fans necessary for conventional single-stage high speed turbine blowers is discarded Greatly improving the process performance and operation reliability of the product, avoiding the secondary pollution caused by noise, vibration and discarded lubricating oil on the environment, greatly reducing the equipment maintenance workload and saving the equipment maintenance cost.

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Air Levitation Centrifugal Blower

Air Levitation Centrifugal Blower,Small Centrifugal Blower,Fan For Industrial Dust Removal,Fan For Air Cooling Equipment

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