PURPOSE: To accurately and quickly measure deformation of flanges of a winding frame over the whole periphery by automatically acquiring measured values required for measuring the deformation of the flanges over the whole periphery.
CONSTITUTION: A measuring head 6 moved in the radial direction of a rotatable winding frame 10 is provided between flanges 1. The winding frame 10 is set to the origin position of rotation, a shift driving device 9 is controlled by a control device 13, the measuring head 6 is retreated in steps from a winding drum 2 to flange edges 12, and the shortest distances L, L' from the measuring head 6 to both flange faces 1a, 1b are measured. The position (r) in the winding frame radial direction of the measuring head 6 is measured by a position sensor 7, and the rotation angle θ of the winding frame 10 is measured by a rotation angle sensor 5. After the measurement, a rotation driving device 4 is controlled by the control device 13 to rotate the winding frame 10 by the prescribed angle, and measurement is repeated until the winding frame 10 is rotated once. The size between both flanges 1 and the perpendicularity of the flanges 1 against a rotary shaft 3 are calculated based on the position (r) in the winding frame radial direction, the shortest distances L, L', and the rotation angle θ thus obtained.
TOYODA YUICHI
OTA TAKAYUKI
