Research on the Electromagnet Characteristics of Track-Change Interlocking Mechanism in Three-Dimensional Braiding Machine

In the three-dimensional braiding machine kinematics, to strengthen the stability of carrier base, the electromagnet is used in track-change kinematics, so as to increase the stability in track-change interlocking braiding. Design and analysis track-change interlocking mechanism, establish the mechanical model of electromagnet, establish the equilibrium equation under the stable state of carrier base. Using equivalent magnetic circuit to analysis magnetic characteristics, using COMSOL Multiphysics simulation software to analysis the electromagnetic force, magnetic flux density and magnetic induction line of electromagnet. Then simulate the statue that exchange carrier slider and carrier base crash to the chassis track, get the max impact force is 24.5 N during track-change process, when the velocity is 0.5 m/s. Finally, the experiment is carried out, the electromagnetic force is always higher than impact force, the simulation and experiment indicate electromagnet can play a good role in stabilize the track-change kinematics.