Linear Motors and Motor Platforms

Abstract

The invention discloses a linear motor and a motor platform. The magnet array of the linear motor is arranged on the stator, and the coil is arranged on the mover. The polarities of the multiple magnets in the magnet array are the same in the X direction and alternately changed in the Y direction. When the mover moves in the X direction, the magnet array basically does not exert force on the coil, but when the coil is energized, the magnet array produces a force in the Y direction on the coil. In the motor platform, the above-mentioned linear motor is used as the Y-direction motor component. The driving force exerted by the motor assembly in the Y direction through its mover roughly passes through the center of mass of its driven object. The driving force applied by the X-direction motor assembly through its mover passes through the change range of the center of mass of its driving object. Thereby, it is possible to easily set the driving forces in both directions to pass or substantially pass the center of mass of the driven object, thereby reducing the adverse effect of the additional moment.

Description

technical field [0001] The invention relates to a linear motor and a motor platform. Background technique [0002] When driving an object with force, it is better that the direction of the driving force can be aligned with the center of mass of the driven object. [0003] Such as Figure 1A As shown, when the driving force F just passes through the center of mass C, the motion of the object is stable and reliable, and the driving force F will not generate additional torque. [0004] Conversely, if Figure 1B As shown, when there is a relatively large deviation between the direction of the driving force F and the center of mass C of the object, the driving force F will generate an additional torque M relative to the center of mass C of the object, which will affect the stability and reliability of the object's motion, and make the object withstand additional torque. [0005] This problem also exists in the working process of the X-Y motor platform. [0006] In the design ...

AI Technical Summary

Problems solved by technology

However, in the actual design of the X-Y-Theta platform, due to the limitations of the motor's motion form and the design and installation space of the platform, it is difficult to meet the requirement that the driving force is consistent with the motion center of mass or as consistent as possible

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