| 摘要 |
PROBLEM TO BE SOLVED: To improve sufficiently productivity of rotors 3(5) by heightening efficiency of a manufacturing work of a series of rotors 3(5) including dimension control of the rotors. SOLUTION: A setting tool 15 capable of setting the rotors 3(5) in the state where the axial center is set in parallel to the X-axis direction is provided on a base 7, and a moving table 27 movable in the X-axis direction is provided on the base 7, and a turning arm 39 turnable around theθ-axis orthogonal respectively to the X-axis and the Y-axis is provided on the moving table 27. The turning arm 39 is provided with a transmission type optical detection sensor 41 for detecting a blocking width of detection light LB blocked by the rotors 3(5), and a groove bottom operation means 49 is provided, for operating the radius and/or the diameter of the groove bottom of the rotors 3(5) based on the blocking width of the detection light LB detected by the transmission type optical detection sensor 41. COPYRIGHT: (C)2009,JPO&INPIT
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