Classification and selection of spindle motor of woodworking engraving machine

The spindle motor is an important component of the woodworking engraving machine, and its performance has a crucial impact on the performance of the woodworking engraving machine. The quality of the spindle motor not only affects the accuracy and quality of the engraving machine, but also directly affects the overall work efficiency. The following editor will introduce the classification of the spindle motor of wood cnc router 1325 and how to choose a suitable spindle motor for the engraving machine:

1. Classification of Spindle Motors

Spindle motors of engraving machines are usually divided into two categories: fine machining spindles and high-power cutting spindle motors.

(1) The characteristics of the fine machining spindle motor are low noise, high speed and high precision, and it is suitable for processing particularly fine work pieces, such as seals, nameplates, badges and gifts. This motor is usually a high-speed variable frequency motor with low power, generally below 250W. The disadvantage is that the ability to cut thicker materials is relatively poor, and it is not suitable for cutting thicker materials.

(2) The high-power cutting spindle motor is mainly used for cutting and high-power engraving. It is characterized by high power and strong cutting ability. It is especially suitable for cutting fonts and three-dimensional characters. Of course, it can also make badges, nameplates, seals, etc. High-power spindle motors can generally be divided into brushless variable frequency high-speed AC motors and brushed AC motors according to the characteristics of the motor. The main differences are: A. The brushless variable frequency motor has a high speed and a variable speed range of 700-60000 rpm, while the general Brushed AC motor speed does not exceed 24000 rpm. B. The brushless frequency conversion motor has high rotation precision, small wear and low noise, and its noise is much lower than that of the brushed AC motor. C. The brushless variable frequency motor has good blocking characteristics. Due to the special current limiting circuit on the inverter, the short-term blocking will not burn the motor, while the brushed AC motor will soon emit smoke when it is overloaded or blocked. Burnt and irreparable. D. The brushless frequency conversion motor adopts frequency conversion control technology to adjust the speed and has a long service life. The manufacturer provides a free replacement for 1 year. In the future, the motor can be maintained by replacing the high-speed bearing. The brushless AC motor has a motor life of about 300 hours. The carbon brushes of the motor and motor have to be replaced, so the carbon brush AC motor is usually not guaranteed for one day.

2. How to choose the spindle motor

The spindle motor of wood cnc machine is an important part of the engraving machine. We can generally measure the selection of the spindle motor from our own engraving process.

(1) If the processing demand is high speed and the knife is deep, at least the power needs to be guaranteed, and a larger power is selected as the guarantee.

(2) Whether the radial direction of the spindle motor is stressed. The main reference is whether hard materials can be cut at high speed. Some spindle motors can only cut hard materials at very low speeds, otherwise the spindle motor performance will be seriously lost, and the accuracy of the spindle motor will be affected after a period of time.

(3) Choose air cooling or water cooling according to the power consumption of the spindle motor and the length of the engraving time. Overheating will easily cause deformation and affect the service life.

(4) For other correlations, choose according to your own workmanship, and generally speaking, there will be no problems.

At present, there are not many types of spindle motors for woodworking engraving machines on the market. Most of them are frequency conversion brushless motors. High-speed spindle motor units mainly include high-speed spindle motors, pneumatic spindle motors and hydraulic spindle motors. It is one of the more critical components in high-speed machining. At present, most spindle motor structures integrate the machining spindle motor and the motor shaft to achieve zero rotation. At the same time, the motor shell is equipped with a cooling system. The high-speed spindle motor mainly consists of a shell with a cooling system, a stator, a rotor, a bearing and other parts. The speed can be increased or decreased by changing the frequency of the current during operation.

Superstar CNC Recommended Products：Superstar CX-1325 Automatic Woodworking Cutting Machine