Ultrasonic electric spindle and electromagnetic isolation structure thereof

Abstract

The invention relates to an ultrasonic electric spindle and an electromagnetic isolation structure thereof. The electromagnetic isolation structure comprises a rear end shell, wherein the rear end shell comprises a shell part and a partition plate part. During assembling, a wireless transmitting assembly and a wireless receiving assembly are arranged in an accommodating space jointly defined by the partition plate part and the shell part, and an induction head of an encoder is installed on the rear portion of the partition plate part, so that the induction head of the encoder, the wireless transmitting assembly and the wireless receiving assembly are located on the two different sides of the partition plate part respectively and are isolated by the partition plate part. Therefore during working, even if the wireless transmitting assembly and the wireless receiving assembly generate electromagnetism, the induction head of the encoder on the other side of the partition plate part is not interfered, so that the phenomenon that a signal of the encoder is unstable is effectively avoided.

Description

technical field [0001] The invention relates to the technical field of spindles, in particular to an ultrasonic electric spindle and its electromagnetic isolation structure. Background technique [0002] The spindle is one of the important parts of the machine tool, and its precision directly affects the machining precision. The ultrasonic electric spindle uses the high-frequency vibration of the tool in the axial direction to make the tool rotate at high speed to cut the workpiece, which can reduce the processing resistance, improve the processing efficiency, and obviously improve the roughness of the processed surface. It has the advantages of greatly extending tool life and small residual processing stress. It is suitable for the processing of parts such as strengthened glass and semiconductors, as well as the processing of hard and brittle materials such as quartz and alumina. [0003] The traditional ultrasonic electric spindle includes components such as wireless tran...

AI Technical Summary

Problems solved by technology

[0003] The traditional ultrasonic electric spindle includes components such as wireless transmitting components, wireless receiving components and encoders. Since the wireless transmitting components and wireless receiving components usually include magnetic cores and coils, they will generate electromagnetic waves during work, and these electromagnetics will affect the encoder. Interference is generated, causing the encoder signal to be unstable

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