| 摘要 |
PURPOSE:To reduce the damage, and increase the life, of a grinding wheel and reduce a cycle time by providing means of obtaining the machining allowance of a workpiece and controlling the mill-scale grinding quantity of said workpiece in accordance with said machining allowance. CONSTITUTION:The inside diameter or outside diameter of a workpiece is detected by a work sensor 62, and the machining allowance, or the machining part of the workpiece is operated based on the detected value through a machining allowance operating means 63. The smaller the operated machining allowance is, the smaller the mill-scale grinding quantity is made by a mill-scale grinding quantity correcting signal, which is given to a cutting control means 61 through a mill-scale grinding quantity correcting means 64. Based on this mill-scale grinding quantity correcting signal, the optimum grinding of mill scale in accordance with the machining allowance, or the quantity of mill scale, is carried out by means of a grinding device 1, totally preventing any mill scale from remaining even in the case of a workpiece with a large quantity of mill scale, preventing the damage of a grinding wheel, while, in the case of a workpiece with a small quantity of mill scale, the cycle time can be reduced, improving machining efficiency. |
