APPARATUS FOR ELECTRICALLY DRIVING A SHAFT AND METHOD FOR WORKING THE SAME

摘要

The present invention relates to an electric shaft driving device, capable of accurately controlling a chucking force of a processing machinery by separating a rotational motion and a linear motion of a shaft in various processing machineries such as a forming device or a cutting device, and independently generating the same by controlling a current applied to a clamping structure unit. A rotation member respectively rotating by a plurality of bearing structures on the outside of a linear moving shaft linearly moving is installed in a housing, and the rotational motion of the rotation member and the linear motion of the linear moving shaft separated and operated by an independent system. A clamping part requiring a large chucking force is independently separated from a simple transfer part in a linear transfer, and is operated; thus having high thrust density per unit volume.