Active magnetic levitation guide rail platform and control method

Abstract

The invention discloses an active magnetic levitation guide rail platform and a control method. A linear motor, a first normal support electromagnet and a second normal support electromagnet are arranged on the upper wall of a sliding box; a first guide electromagnet and a second guide electromagnet are arranged on the left side wall of the sliding box; a third guide electromagnet and a fourth guide electromagnet are arranged on the right side wall of the sliding box; a third normal support electromagnet and a fourth normal support electromagnet are arranged on the lower wall of the sliding box; the third normal support electromagnet is provided with a first displacement sensor; the fourth normal support electromagnet is provided with a second displacement sensor; the first displacement sensor is used for detecting the gap between a guide plate and the third normal support electromagnet; and the second guide electromagnet is used for detecting the gap between the guide plate and the fourth normal support electromagnet. Through a bracket designed for the active magnetic levitation guide rail platform, not only fluttering is solved, but also the bearing capacity is improved when fourconstraint point theoretical planes of the normal support electromagnets arranged on the bracket are fully close to an actual plane.

Description

technical field [0001] The invention relates to the technical field of active magnetic suspension, in particular to an active magnetic suspension guide rail platform and a control method. Background technique [0002] As we all know, the machine tool guide rail is the basic structural element of the machine tool. The machining accuracy, machining efficiency and service life of the machine tool depend largely on the quality of the machine tool guide rail. With the continuous advancement of technology, higher requirements are put forward for the guide rails of high-end CNC machine tools. It must not vibrate when feeding at high speeds and not crawl when feeding at low speeds; it must have higher response speed and be able to operate under heavy loads. Long-term continuous work; high wear resistance, good precision retention and other characteristics. For most existing machine tool guide rails, there are inevitably wear and tear problems under heavy load and high speed, and t...

AI Technical Summary

Problems solved by technology

For most existing machine tool guide rails, there are inevitably wear problems under heavy load and high speed, and there is a certain friction coefficient, and the feed speed cannot be maximized

[0003] The existing active magnetic levitation guide rail is difficult to become a practical machine tool guide rail, because when the load is close to the support point with small stiffness, it is easy to cause instability

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