High speed motor technology: Electric spindles are products of motors and spindles. The rotor of an electric motor is the rotating part of the main shaft. In theory, an electric spindle can be regarded as a high-speed motor. The key technology is high-speed dynamic balancing.

High speed bearing technology: Electric spindles usually use composite ceramic bearings, which are wear-resistant and heat-resistant. The service life is several times longer than that of traditional bearings; Sometimes it uses electromagnetic suspension bearings or static bearings, with the inner and outer rings not in contact, and the theoretical lifespan is infinitely long. Static and Static

Lubrication: The lubrication of the electric spindle is usually carried out using timed oil air lubrication; You can also use grease lubrication, but the corresponding speed will be affected.

The so-called timing is to regularly inject oil. The so-called quantification refers to the control of the oil quantity of each lubricant through a device called a metering valve.

Oil air lubrication refers to blowing lubricating oil into ceramic bearings carried by compressed air. Oil quantity control is very important, too little does not provide lubrication; Too much, when the bearing rotates at high speed, it will heat up due to its oil resistance. Precision electric spindle

Built in pulse encoder: In order to achieve automatic tool changing and rigid tapping, the electric spindle is equipped with a pulse encoder to achieve precise phase control and coordination with feed.

Cooling device: In order to dissipate the heat of the high-speed electric spindle as soon as possible, the outer wall of the electric spindle is usually circulated with coolant. The function of the cooling device is to maintain the temperature of the coolant.

Automatic tool changing device: In order to be suitable for machining centers, the electric spindle is equipped with a device that can automatically change tools, including a disc spring pull cylinder.

High speed tool loading: Familiar BT ISO tools have been proven unsuitable for high-speed machining. In this case, high-speed tool holders such as HSK SKI may appear.

High frequency frequency conversion device: In order to achieve a speed of tens or even hundreds of thousands of revolutions per minute for the electric spindle, it is necessary to use a high-frequency frequency conversion device to drive the electric built-in high-speed motor spindle. The output frequency of the inverter even needs to reach several kilohertz.