High-speed and high-precision electric spindle integrating three-dimensional vibration active control function

Abstract

The invention relates to the technical field of electric spindles, and particularly discloses a high-speed and high-precision electric spindle integrating a three-dimensional vibration active control function. The high-speed and high-precision electric spindle comprises a spindle body and a shell, and further comprises an actuator, a radial displacement sensor, an axial displacement sensor and a processor. The actuator comprises a radial control winding and an axial control winding, and the radial control winding and the axial control winding are arranged on the periphery of the spindle body in a non-contact mode. The processor is used for receiving three-dimensional vibration signals of the spindle body measured by the radial displacement sensor and the axial displacement sensor and guiding the actuator to apply axial control force and radial control force to the spindle body after real-time calculation of the processor, so that three-dimensional vibration of the spindle body is inhibited. According to the scheme, through the arrangement of the non-contact actuator and displacement sensor, real-time monitoring of the three-dimensional vibration of the spindle body is achieved, the purpose of inhibiting the three-dimensional vibration in real time is achieved, the machining precision of the electric spindle is improved, and high-precision machining of the high-speed electric spindle is facilitated.

Description

technical field [0001] The invention relates to the technical field of electric spindles, in particular to a high-speed and high-precision electric spindle integrating three-dimensional vibration active control functions. Background technique [0002] As a symbolic functional part of modern machine tools, high-speed precision electric spindle has been developed and improved rapidly in the past few years. At present, it has been used in various processing machine tools such as turning, milling, and grinding. It is the preferred component in high-end machining centers. The spindle will vibrate during the machining process, and the motorized spindle often needs to process complex parts, which also makes the vibration of the motorized spindle complex, and the complex vibration characteristics of the high-speed motorized spindle will directly affect the trajectory of the tool, causing machining superficial error. [0003] Although some domestic spindle manufacturers already have...

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Problems solved by technology

[0006] The present invention intends to provide a high-speed and high-precision electric spindle with integrated three-dimensional vibration active control function, so as to solve the problem in the prior art that the vibration of the electric spindle only realizes radial monitoring, which leads to incomplete monitoring and control of vibration

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