| 摘要 |
PURPOSE:To detect accurately and easily whether a workpiece is already worked or not, by measuring preliminarily the weight of the workpiece before working and setting this weight as a reference value and measuring the weight of each work at the working time and comparing this measured weight with said reference value. CONSTITUTION:A weight measurer 3 is provided in a conversion position of a subloader 2, and a saucer 3a and the surface of the subloader 2 are leveled. Before discriminating whether a work 4 is already worked or not, the measured value measured by the weight measurer 3 is stored preliminarily as the reference value in a register of a controller. At the discrimination time, works 4 worked by a hobbing machine are carried to the subloader 2 and are placed on the saucer 3a successively at a certain timing. The weight of the work 4 is measured by the weight measurer 3 and is compared with the preliminarily stored reference value by the controller. If the reference value is larger than the measured value, it is discriminated that the work 4 is already worked. If it is discriminated that the work 4 is not worked yet, the work 4 is worked again. |
