Automatic Tool Change spindles are applicable to woodworking CNC,and are widely used in wood processing, plastic workingand other areas
1.P4grade angular contact bearings or ceramic ball bearings are used. With such bearings, the strength and stiffness of electric spindles are greatly improved and the RPM can reach 24000r/min.
2.High precision dynamic balancing testing is conducted on all rotable parts, with the tolerance value of less than G0.4.
3.The airtight shaft bracket made of extruded aluminum raises the protection class of electric spindles to be IP54 and protects internal parts from the threat of dust.
4.Independent electric fans are equipped and used as active cooling devices. In such case, even when electric spindles stop running, independent electric fans can still provide adequate air amount required for cooling and keeps noise at a rather low level.
The overheating of the spindle motor may be due to insufficient cooling air flow. Check if the air vents are blocked by dust or debris. Another possible reason is continuous high - speed operation for an extended period without proper rest. The motor should be given appropriate cooling time intervals during heavy - duty operations. Also, if the load on the spindle is too high, such as when machining hard materials with excessive cutting parameters, it can cause overheating. Adjust the cutting parameters according to the material and the capabilities of the spindle motor.
Regularly clean the air vents to ensure unobstructed air flow. Use compressed air to blow away dust and debris. Check the motor bearings periodically for any signs of wear or noise. Lubricate the bearings as per the manufacturer's recommendations. Also, monitor the spindle's running temperature. If it exceeds the normal range frequently, it may indicate a problem that needs to be addressed. In addition, keep the electrical connections clean and tight to prevent electrical issues.
Abnormal noises can be caused by several factors. First, check if there are any loose parts in the spindle assembly. Tighten all the screws and connections. If the noise is a high - pitched whining sound, it may be due to bearing problems. Replace the bearings if they are worn out. Another possibility is that there is foreign matter in the spindle. Stop the motor and carefully inspect for any debris or chips that may have entered. If the problem persists, it may be a problem with the motor's stator or rotor, and professional maintenance may be required.
Yes, the speed of the spindle motor can usually be adjusted. Most ATC spindle motors are equipped with a variable - frequency drive (VFD). The VFD allows you to change the frequency of the electrical power supplied to the motor, which in turn changes the rotational speed. The speed adjustment can be done through the control panel of the machine tool. However, it is important to note that the speed should be adjusted within the rated speed range of the spindle motor to ensure proper performance and prevent damage.
The lifespan of the spindle motor depends on various factors such as the quality of the motor, operating conditions, and maintenance. Under normal operating conditions with proper maintenance, an ATC air - cooled spindle motor can last for 5 - 10 years. However, if it is operated in harsh environments, with high loads and without regular maintenance, the lifespan may be significantly reduced. Regular inspection and timely replacement of worn - out parts can help extend the lifespan of the motor.