Splice design and electromagnetic analysis of a long-stroke maglev guideway for machine tools

This paper explores a new structural design of armature splicing to reduce the machining requirements of maglev guideways. The paper presents the magnetically supported structure and working principle of magnetic levitation worktable machine tools. Rectangular tooth splicing structures for extended long-stroke maglev guideways are designed, and corresponding finite element analysis models are established. After calculating the static three-dimensional magnetic field with the help of ANSYS software, the electromagnetic force produced by the magnetic levitation electromagnet group decreases linearly with increasing splice clearance of the armature and increases linearly with the increasing number of splice teeth. The smaller the number of teeth is or the larger the clearance value is, the more pronounced the change is. When the number of teeth, the width of the teeth and the clearance of the splice are kept constant, the electromagnetic force increases with increasing tooth depth, and a change in the tooth width has little effect on the electromagnetic force.