How to recognize the difference between the spindle motor of woodworking engraving machine and how to choose
As people's use of CNC engraving machines has generally increased, awareness and understanding have become higher and higher. In the eyes of many people, it may be felt that the CNC woodworking engraving machine is very magical, and all kinds of embossed crafts can be carved out in full automation. In fact, I really understand the working principle of the engraving machine, and I understand it. CNC woodworking engraving machine is mainly composed of machine tool, spindle, gantry, control system, transmission system, etc. Among them, spindle motor is especially important. The spindle motor of the CNC engraving machine is also divided into a precision machining spindle and a high power cutting spindle. According to the customer's processing conditions, the difference between the spindle motor is also very large. Today, the Xike CNC woodworking engraving machine manufacturers will introduce the selection and division of the spindle motor in detail.
1. The fine machining spindle of CNC woodworking engraving machine is characterized by low noise, high speed and height, and is suitable for processing particularly fine workpieces such as seals, nameplates and badge gifts. Such woodworking engraving machine spindle motors are usually high-speed variable frequency motors with low power, generally below 250W. The disadvantage is that the ability to cut thick materials is poor and does not cut off thicker materials.
2, CNC woodworking engraving machine high power cutting spindle, mainly used for cutting, high power engraving, characterized by high power, strong cutting ability, especially suitable for cutting the universe, three-dimensional characters, of course, you can also make badges, nameplates, seals and so on. The high-power spindles of such CNC engraving machines can be generally divided into brushless high-speed AC motors and brushed AC motors according to the characteristics of the motors. The main differences are:
A. The speed of the brushless variable frequency motor is high, the shifting range is 70060000 rpm, and the high speed of the brush AC motor is not more than 24000 rpm:
B. The brushless variable frequency motor has high rotation precision, low wear and low noise, and the noise is much lower than that of the brushed AC motor;
C. The brushless inverter motor has good blocking characteristics. Because there is a special current limiting circuit on the inverter, the short-time blocking will not burn the motor, and the brushed AC will smoke quickly when it is overloaded or blocked. Burnt and not repairable;
D. The brushless variable frequency motor adopts the frequency conversion control technology to adjust the speed. It is a professional grade product with long service life. The CNC engraving machine manufacturer provides one year free replacement. In the future, the motor can be maintained by replacing the high speed bearing, and the brushed AC motor is It is necessary to replace the motor or motor carbon brush with a life of about 300 hours, so the carbon brush AC motor is usually not guaranteed for one day.
Therefore, before the customer prepares to purchase the CNC woodworking engraving machine, it is necessary to clarify the purpose of purchasing the CNC engraving machine, so that the CNC engraving machine can be selected according to the purpose to determine the spindle size of the CNC engraving machine. Then according to the specific processing needs, choose the corresponding other configuration, reasonable configuration, in order to give greater play to the real performance of woodworking engraving machine.
