| 摘要 |
PROBLEM TO BE SOLVED: To machine, while efficiently and highly precisely controlling the dimension of machine components required high dimension precision. SOLUTION: A work is ground with its intermediate part 4 set to the reference diameter D0, the reference diameter D0 is highly precisely measured, and the outer diameter machining part 30 except for the intermediate part 4 is ground. In parallel to the grinding work, a measuring element 9 is oscillated between the reference position P' on the intermediate part 4 and the work diameter measuring position Q on the outer diameter machining part 30 so that the level differenceΔR is measured at real time, and when the level differenceΔR reaches the minor level differenceΔR0, the grinding work of the work is completed.
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