| 摘要 |
PURPOSE:To permit the centering with high precision, eliminating the need of a skilled operator, by instaling a unidimensional sensor with catches the image due to the light supplied from an optical system and an image processing part which calculates the eccentricity quantity between the inside diameter of a sleeve-shaped metal fitting and the revolution center of a spindle from the signal supplied from the unidimensional sensor and the signal supplied from an encoder. CONSTITUTION:The image of a sleeve-shaped metal fitting 3 at each revolution angle is taken into a unidimensional sensor 5 according to the synchronous signal (c) supplied from an image processing part 10 during one revolution of a spindle 6. The sensor 5 returns the taken-in image as an image signal (a) into the image processing part 10. Further, the pulse signal (b) is sent as the value of the angle in the case when each image is taken in, into the image processing part 10 from an encoder 9. In the image processing part 10, the deflection quantity between the center of the inside diameter of the sleeve metal fitting 3 and the revolution center of the spindle 6 is calculated from the both input signals (a) and (b). At the initial position of revolution of the spindle 6, the sleeveshaped metal fitting 3 is shifted in the X and Y directions by a position adjustor mechanism 7 according to the above-described deflection quantity, and center adjustment is carried out.
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