Real-time control system of magnetic suspension electric main shaft and magnetic suspension electric main shaft

Abstract

The invention discloses a real-time control system of a magnetic suspension electric main shaft and the magnetic suspension electric main shaft. The system comprises an upper debugging machine and a control circuit; the control circuit comprises a controller, a current driving module, a current sensor and a sampling module; an input end of the current sensor is used for acquiring coil current of the magnetic suspension electric main shaft; a first input end of the sampling module is connected to an output end of the current sensor, and a second input end is used for acquiring position signalsof the magnetic suspension electric main shaft; an input end of the controller is connected to an output end of the sampling module, a parameter input end is connected to a parameter output end of theupper debugging machine, and a state output end is connected to a state input end of the upper debugging machine; and an input end of the current driving module is connected to an output end of the controller, and an output end is used for driving a coil of the magnetic suspension electric main shaft. The system can improve the control instantaneity and reliability, realizes online testing and adjustment of internal parameters thereof, and meanwhile, guarantees low cost.

Description

technical field [0001] The invention belongs to the field of magnetic suspension bearing control technology and machine tool processing spindle, and more specifically relates to a real-time control system of a magnetic suspension electric spindle and a magnetic suspension electric spindle system. Background technique [0002] Magnetic suspension bearing is a new type of high-performance bearing that uses controllable electromagnetic force to stably suspend the rotor or shaft in space. Compared with traditional bearings, there is no contact between the relative moving surfaces of the magnetic suspension bearing, and the rotor can run to a very high speed. At the same time, it has the advantages of no friction, no lubrication, low power consumption, clean and pollution-free, so it is widely used in the field of machinery industry, such as various types of machine tools, turbomolecular pumps, high-speed centrifuges, turbo generators and other high-speed rotating machinery. [0...

AI Technical Summary

Problems solved by technology

Due to the complexity of the structure of the magnetic levitation electric spindle, the real-time monitoring and parameter adjustment efficiency of the state of the magnetic levitation electric spindle in the existing technology is relatively low, and the control effect is not good

The current real-time simulation control system on the market can improve efficiency, but these devices are expensive, and the cost of using these devices as a control system for a magnetic levitation electric spindle is relatively high

In addition, in the existing control system of the magnetic levitation electric spindle, the online test and adjustment of the internal parameters of the control system cannot be realized.

Images