Bilinear permanent magnet synchronous motor horizontally-feeding platform capable of offsetting influence of gravity

Abstract

The invention discloses a bilinear permanent magnet synchronous motor horizontally-feeding platform capable of offsetting the influence of gravity, comprising a movement-input linear drive module and a movement-output worktable movement module, wherein the linear drive module is a linear feeding module which is driven by two inclined flat type permanent magnet linear synchronous motors, and the linear movement shaft thereof is parallel to the linear movement shaft of the worktable movement module. The bilinear permanent magnet synchronous motor horizontally-feeding platform capable of offsetting the influence of gravity has reasonable structure, achieves zero component force offset of the two permanent magnet linear synchronous motors along the horizontal direction of a normal magnetic attraction force, with the component force along the vertical direction offsetting partial gravity of the worktable, reduces the friction force between a slide block and a linear guide rail, and leads the dynamic performance of a numerical control machine to be better.

Description

Technical field: [0001] The invention relates to a dual linear permanent magnet synchronous motor horizontal feed platform which can offset the influence of gravity. Background technique: [0002] CNC machine tools are the processing mother machine of the manufacturing industry and the important foundation of the national economy. It provides equipment and means for all sectors of the national economy, and has unlimited economic and social effects. [0003] The linear motor drive system is currently recognized internationally as the most promising high-speed, high-precision machine tool feed system. With the continuous development of high-speed and ultra-high-speed machining, linear motors are more and more widely used in various machine tools and machining centers. Among them, permanent magnet linear motors are the most widely used. [0004] In addition to generating electromagnetic thrust parallel to the direction of movement, the permanent magnet linear motor also generates a ...

AI Technical Summary

Problems solved by technology

However, most of the linear motors used in CNC machine tools cannot be made into double-sided type, which puts forward higher requirements for the structural rigidity of CNC machine tools. Therefore, this normal magnetic attraction must be considered when designing the machine tool structure.

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