| 摘要 |
PROBLEM TO BE SOLVED: To perform dimension management suited for the function of products reflecting importance in a workpiece, where importance in the dimension management differs depending on the site, such as a ball groove in the inner lace of a constant velocity joint. SOLUTION: A probe is moved along the ball groove to acquire a curve (a) for indicating the moving local of the probe at this time. Data on points on the curve (a) are acquired with a sampling period corresponding to the width of tolerance. For a range B having narrow tolerance width, data are acquired densely, while data are acquired roughly for ranges A, C having wide tolerance width. A sphere, where the acquired data are approximated, are obtained, and the radius is obtained. The radius is set to the precision management value of the ball groove. COPYRIGHT: (C)2005,JPO&NCIPI
|
