China cheap CNC plasma cutting machine is a device that uses the heat generated by high-temperature plasma arc to melt the metal part at the notch of the processed workpiece as a whole or locally, and uses the momentum of high-speed plasma to remove the molten metal for cutting. It has the characteristics of convenient operation and high cutting precision. CNC fiber laser cutting machine can be perfectly applicable to the cutting of non-ferrous metals, with smooth cutting surface and small deformation. Therefore, it is widely used in the cutting engineering of automobile, locomotive, chemical machinery, nuclear industry, general machinery, engineering machinery, steel structure and other industries.

In recent years, with the deepening of mechanization, the manufacturing process of plasma cutting machine is also improving. Modern NC plasma cutting machine is generally controlled by NC system. Its NC configuration is high, which can realize automatic arc striking, and the success rate of arc striking is more than 99%. And the system supports various design software, and can also use U disk to exchange processing files, which is very convenient to operate. In addition, the frame of the plasma cutting machine generally adopts the fully welded structure, which is relatively firm and durable, making its cutting speed fast, high precision and small cutting mouth without slag dropping, effectively avoiding secondary processing, and some can even be comparable to the CNC optical fiber laser cutting machine.

With the development of industrialization, plasma cutting machine is more and more widely used in industry. Today, let's introduce what preparations should be done before starting the NC plasma cutting machine?

1. Before the plasma cutting machine is powered on, check whether all switches on the equipment are in the off position and whether the rotary switch at the rear of the equipment is in the horizontal position.

2. Turn on the power supply of the main switch cabinet before starting up to make the two cables energized.

3. Move the circuit breaker in the electrical cabinet of plasma cutting machine to the on position.

4. Turn on the system control power supply with the key switch. At this time, the main interface of the display should appear.

5. Turn the rotary switch at the back of the plasma power supply 90 ° to the vertical position, and the equipment power indicator lights up.

6. Turn on the air compressor (compressor flow 1m3 / min), adjust the pressure control switch of the air compressor to make the output air pressure of the compressor at 6.1-8.2bar.

As a cutting tool, NC plasma cutting machine has been paid more and more attention by many people. How to operate NC plasma cutting machine? What should we do? Today, Xiaobian will give you a brief introduction.

1. The first step is to check whether the air inlet pressure of the plasma power supply meets the requirements and whether there is an alarm when the plasma power supply is started

2. Press to start cutting. Whether the plasma power supply gives an alarm after the cutting torch performs the positioning action. If there is an alarm, eliminate the fault according to the instructions of plasma power supply.

3. Turn on the switch controlling the numerical control in the power distribution cabinet in the upper room, turn on the main power supply of the cutting electromechanical cabinet, turn on the power supply of the dust removal controller, and start the dust remover.

4. After the CNC system is fully started, turn the emergency stop switch right and turn the button right to power up the drive

5. Customize the zero return of each axis, check and replace the plasma vulnerable parts, and close the plasma power circuit breaker.

6. Open oxygen and compressed air, and the pressure of each gas is 8.3bar + - 10%.

7. Call the cutting program and the corresponding database for correction

8. Save the program from the cutting starting point to the reference point, turn on the plasma power supply and adjust the gas setting

9. Start cutting. When pressing the start cutting button, check whether the cutting signals are normal according to the drawing

10. In case of any problem in the middle, press the stop button to stop cutting, and continue cutting after eliminating the problem.

11. After cutting, turn off the computer power supply, plasma power supply and gas valves of the machine.

12. Then clean the machine, keep the frame and guide rail, and add oil

The general cutting signal sequence is: press to start cutting; The NC system receives the external signal and then sends the cutting signal, or the NC system sends the cutting signal directly; After the plasma cutting torch is selected, the plasma torch of the control system is adjusted to perform the positioning action, and the cutting torch nozzle touches the steel plate and then rises to the height of the perforation. After the height adjustment control system completes the positioning action, it sends the start cutting switch signal to the plasma power supply to start arc striking and perforation. After the perforation is completed, the machine tool starts to move for workpiece cutting.