High-speed electric spindle of ball

Abstract

The invention discloses a high-speed electric spindle of a ball. The high-speed electric spindle of the ball comprises a machine body, an aluminum water jacket, a bearing seat, a rotor spindle, a motor, a tool changing system and an air cooling system, wherein the machine body is provided with a first containing cavity, a second containing cavity is defined by the machine body and the bearing seat, a third containing cavity is defined by the bearing seat and the aluminum water jacket, the rotor spindle penetrates through the first containing cavity, the second containing cavity and the third containing cavity, the air cooling system comprises a fan and a cooling air channel, the cooling air channel comprises a plurality of air inlets, a plurality of air outlets and a first ventilating duct, and the fan is located in the third containing cavity and rotates along with the rotor spindle under the driving of the motor. According to the high-speed electric spindle of the ball, due to the fact that the fan which rotates at a high speed along with the rotor spindle is arranged on the rotor spindle, heat generated by the motor can be taken away. According to the radiating method, the structure is simple, energy is saved, and pollution is reduced. An air sealing system is arranged in the high-speed electric spindle of the ball, a lower bearing component can be cooled, impurities such as cutting fluid and greasy dirt are prevented from entering the machine body, and therefore the service life of the lower bearing component is prolonged.

Description

[0001] technical field [0002] The invention relates to a ball high-speed electric spindle, in particular to a ball high-speed electric spindle with an air cooling system. [0003] Background technique [0004] The electric spindle is a new technology that integrates the machine tool spindle and the spindle motor in the field of CNC machine tools in recent years. Since the electric spindle integrates the motor into the spindle unit, and the speed is very high, a large amount of heat will be generated during operation, which will cause the temperature rise of the electric spindle, deteriorate the thermal and dynamic characteristics of the electric spindle, and affect the normal operation of the electric spindle. [0005] Contents of the invention [0006] Aiming at the deficiencies of the prior art, the object of the present invention is to provide a ball high-speed electric spindle with an air cooling system. [0007] To achieve the above object, the present invention ...

AI Technical Summary

Problems solved by technology

Since the electric spindle integrates the motor into the spindle unit, and the speed is very high, a large amount of heat will be generated during operation, which will cause the temperature rise of the electric spindle, deteriorate the thermal characteristics and dynamic characteristics of the electric spindle, and affect the normal operation of the electric spindle.

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