| 摘要 |
PROBLEM TO BE SOLVED: To reduce the working time of a work. SOLUTION: The grinding wheels 74 and 76 on two wheel spindle stocks 54 and 62 work their charging working positions. When they finish the working in charge, it is decided whether the other side grinding wheel is being corrected (abraded or exchanged) or not, and when the other side grinding wheel is being corrected, the grinding wheel not being corrected works the working position charged by the grinding wheel in the correction. As a result, two wheel spindle stocks are operated efficiently, so as to reduce the processing time.
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