| 摘要 |
The present invention relates to a rotation indexing device using a dual motor comprising a rotatable indexing table supporting a laminated core; a servo motor driving the rotation of the indexing table; a decelerator controlling a rotation speed between the indexing table and the servo motor through gear connection; a motor driver controlling driving of the servo motor; an optical sensor unit installed below the indexing table and measuring a variation in a control position due to backlash of the indexing table; and a correction DC motor unit receiving a control position variation signal measured by the operation sensor unit, and generating a control position correction command signal to drive correction controlling through the decelerator. According to the present invention, a control error with respect to a gear backlash, or the like, generated in the decelerator and the rotatable indexing table can be precisely detected and the detected control error is fed back to perform precise and rapid correction through the DC motor, thereby providing the rotation indexing device using a dual motor ensuring precise controlling. |
