Patent ID: 9110458
Filing Date: 2015-08-18
Classification: G05B

Abstract:
1. A positioning control apparatus comprising: a moving body; a feed device having a guide mechanism for guiding the moving body in a predetermined feed-axis direction and a drive mechanism for moving the moving body; a structural body supporting the feed device; and a controller for controlling a moving position of the moving body with respect to a predetermined reference position by controlling an operation of the drive mechanism; wherein the positioning control apparatus has: the calculating section calculates the displacement amount x of the feed device in the feed-axis direction with respect to the reference position caused by displacement of the structural body using a following equation: where f is the force acting on the structural body and is also the reaction force against the force applied to the moving body, K is an elastic coefficient of the structural body, ω is a natural angular frequency of the structural body, and x″ is acceleration of the moving body.