HANS GS laser cutting machine conventional accessories servo motor

In communicating with customers, some people may question: Why are your prices expensive? Why is the price of laser cutting machine different? And so on.Laser cutting machine is mainly composed of laser source, cutting head, chiller, lathe and CNC system of these five components. Different manufacturers of product configuration is also different, the quality of each component determines the final price of laser cutting machine.Take the lathe as an example, the material structure of the lathe, the way of processing, the accuracy of the beam guide, the servo motor brand, these are the key factors that determine the quality of the lathe. Here to introduce the HANS GS laser cutting machine conventional accessories servo motor.

At present, HANS GS laser cutting machine servo motor brand for Yaskawa, Fuji.

For laser cutting machine, whether it is flat cutting or pipe cutting, you want the equipment in accordance with the established graphics processing, the key is involved in the processing of the dynamic response of the various axes of the level and the coordination between each other. If the overall response of each axis is too slow during processing, or if there is a situation where the axis deviation is small and the other axis is large, the deformation of the contour will occur. There are many reasons for the occurrence of such inconsistencies, mechanical, external, servo response, control system and other factors, or multi-factor superposition. Therefore, the key to solving such problems is that each axis has good dynamic response and coordination between each other, so that it can be more strictly in accordance with established goals for processing action. Servo motor as a mechanical and control system to undertake the middle of the implementing agencies, to a certain extent, make up, optimize and coordinate the action of each system to achieve a more perfect control purposes.

Factors affecting the normal operation of servo motors:

1. mechanical factors

Mechanical problems are relatively common, mainly reflected in the design, transmission methods, installation, material, mechanical wear and so on.

2.mechanical resonance

The biggest influence of the mechanical resonance problem on servo is that it can not continue to improve the response of the servo motor, so that the whole equipment is running in a relatively low response state. Such problems are common in synchronous belt drive machines, and in other cases long distance ball screws. The main reason is that the rigidity of the synchronous belt is low, the resonance frequency is low, and the long distance of the screw itself has a larger inertia, and there is more deformation, especially when the motor capacity is too small, it is easier to start vibration. At the same time, the assembly process and the quality of the material will also affect the resonance of the machine.

3. mechanical jitter

The real problem is the natural frequency of mechanical dither, usually more appear in the single end fixed beam structure, especially in the deceleration stage performance is particularly evident. Low frequency jitter in the workpiece will show a large wave like shape, higher frequency jitter will have serrated shape.

4. mechanical internal stress, external force and other factors

Due to the difference of mechanical materials and installation, the mechanical internal stress and static friction force of each transmission shaft on the equipment may be inconsistent. If the equipment involved in a shaft stress axis interpolation control of static friction or greater, will to some extent consume servo torque caused by the shaft speed is slow, resulting in machining deformation. Usually we can observe the internal stress of the transmission shaft by the waveform curve generated by the servo driver feedback.

The force acting on the shaft is similar. General plate cutting machine, the shaft and the workpiece is non-contact, and may be limited by the external force. But some pipe cutting machines, the shaft will participate in the interpolation when cutting, while the other axis is generally non-contact. At this point, due to the impact of the fixture, the tube will produce a reverse force, so that the two axis force involved in the interpolation control is inconsistent, the effect of cutting will certainly be affected.

5. CNC system factors

In some cases, the servo debugging effect is not obvious, at this time may be involved in the regulation of the control system. In laser cutting machines, the line speed is usually constant, and the speed is the same at both the straight line and the curve. This is not a big problem in linear motion, but in the curve, especially in the processing of small size arc, it may be caused by excessive acceleration resulting in deformation of the contour.

Servo motor is a very important component in laser cutting machine. Its quality decides the stability of equipment, especially the deformation of machining contour. Therefore, in choosing the laser cutting machine, do not always pay attention to the appearance and price of the machine, we should also understand the "internal" of the machine".