| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for grinding a roll, which is implemented by previously measuring an actual grindstone cutting quantity which takes the abrasion of a grindstone of a grinder into consideration, and characteristics of a load current value of a grindstone driving motor, and controlling the grindstone cutting quantity in process, according to the characteristics, thereby to shorten a grinding period. SOLUTION: According to the method, a roll is ground by the grinder by setting the employed grindstone and the item to be ground at an arbitrary grindstone circumferential speed, a roll circumferential speed, and a roll axial feeding speed, and an actual grinding quantity which is a reduced margin of a roll diameter before and after grinding, i.e., the actual grindstone cutting quantity, is measured, to thereby obtain a characteristic formula, from a grindstone driving motor load current value and the actual grindstone cutting quantity. Then, a target actual grindstone cutting quantity, which is a difference between the roll diameter before grinding and a finished roll diameter, is obtained, and a target grindstone driving motor load current value in process is calculated, by using the characteristic formula, from grinding conditions which are set for grinding the roll, and the target actual grindstone cutting quantity. Further, the cutting quantity of a grindstone cutting device is controlled so as to conform the calculated target grindstone driving motor load current value to an actual grindstone driving motor load current value in process. In this manner, a target roll shape is achieved. COPYRIGHT: (C)2004,JPO
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