How to evaluate the quality of CNC Router?

It can cut workpieces with complex shapes, and has the advantages of fast cutting speed, high efficiency, good cutting surface quality, accurate cutting size, and small thermal deformation of the workpiece. Cut parts can be welded and applied directly without machining. However, the CNC plasma cutting machine uses plasma arc for cutting. Compared with oxygen cutting, it still has certain defects, mainly reflected in the large inclination of the cutting surface, and the finish is not as good as oxygen cutting. The main criteria for evaluating the quality of CNC plasma cutting are: the inclination of the cutting surface, the depth of the cutting line, and the amount of slag.

The inclination of a good cutting surface should be less than 30, the depth of the cutting lines should be less than 0.15mm, and the slag should be less and easy to remove. Under the condition of stable voltage and current, in addition to the quality of the electrode and the nozzle itself, there are two main factors that affect the cutting quality: one is the height and stability of the cutting nozzle; the other is the matching of cutting speed and working air pressure. When the height of the cutting nozzle from the steel plate is controlled by the arc voltage height controller, because the dynamic positioning accuracy can reach ±0.013, it can ensure that the height of the cutting nozzle and the steel plate remains unchanged, so the inclination of the cutting surface is small and uniform. And the finish is good. When manually adjusting the height of the cutting tip from the steel plate. The steel plate to be cut should be as flat as possible to reduce the adjustment times of the cutting torch. Ensure the stability of the torch cutting process. In this paper, the manual adjustment method is used to control the height of the cutting nozzle from the steel plate at 6-8.

Through a series of cutting tests, the relationship between cutting speed, working air pressure (P) and cutting quality is expounded.

Through analysis and summary, the optimal cutting parameters for cutting steel plates of different thicknesses with different powers are obtained. Provide reference for improving the cutting quality of CNC plasma cutting machine.

haopin CNC cutting machine is a kind of advanced mechatronics equipment for blanking and cutting of metal sheets, which has been applied in shipbuilding, machinery manufacturing and other industries. There are many factors that affect the cutting quality of CNC plasma cutting machine. In addition to the design parameters of the cutting machine, it is also related to operation control and cutting process. In order to improve the cutting quality, we have carried out a comprehensive cutting test, analyzed and sorted out the test data, and obtained some optimal working parameters of the CNC plasma cutting machine. It is described as follows:

How to evaluate the quality of CNC cutting machine?

Test method: The test equipment is one for each of four air plasma cutting machines with different powers, and each model has six sets of electrodes and nozzles. Install the cutting torches of the four air plasma cutting machines on the cutting trolley of the CNC cutting machine in sequence. Each type of air plasma cutting machine has to complete the whole process of all experiments individually, that is, cutting 'A3 steel plates of different thicknesses (cooled with tap water) with different cutting speeds and different air pressures. The cutting is carried out gradually from low air pressure to high air pressure, and from low speed to high speed. The air pressure is regulated by the filter control valve, and the cutting speed is controlled by the CNC cutting machine. The cut parts are square parts of 100×100 mm. When the cutting speed is too high and the air pressure is too low, the inclination of the cutting surface is large. This is because the speed is too fast, the arc column is seriously tilted back, and the melting speed of the lower half of the kerf cannot keep up. Therefore, the plane size of the cut parts is small. The lower plane is large in size, especially when cutting right-angled parts. The bottom kerf at the corners is rounded rather than right-angled. If the cutting speed is too low and the air pressure is too high, the slag will be serious, it will be difficult to remove, and the finish will be poor. If the cutting speed is appropriate and the working air pressure is too high, the stiffness and smoothness of the arc column will be damaged, the cutting ability will be reduced, and the cutting finish will be poor. Therefore, when cutting steel plates with different thicknesses, it is necessary to reasonably select different cutting power, cutting speed and working air pressure in order to obtain a good cutting effect. According to the test results of four different power models, the optimal cutting parameters of different power cutting machines for cutting steel plates with different thicknesses are shown. According to these data, we have carried out practical application cutting in some manufacturers, the effect is very good, and the cutting quality is greatly improved.

We know that there are many factors that affect the cutting quality of CNC plasma cutting machines. In addition to the parameters mentioned above, there are also many factors such as cutting process, cutting method, and the quality of electrode nozzles. But in the actual cutting process. As long as the cutting is performed according to the cutting parameters provided above, and the cutting speed, the working air pressure and the height of the cutting torch are well controlled, the cutting quality requirements can be met. Under the condition of stable cutting voltage and cutting current, the service life of electrodes and nozzles can be doubled.

Haopin Equipment focuses on the research and development and production of flame cutting machines, CNC cutting machines, portable cutting machines, and plasma cutting machines. Welcome to consult at any time, we will serve you wholeheartedly.