| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a plate bending method and its device capable of bending with a high precision by positioning a die into a highly precise bending position without using bend correcting data. SOLUTION: In the case of bending the plate along a marking line KL, the marking line KL is detected with marking line detecting devices 45R, 45L provide in bending press dies 27 (27L, 27R), and a coordinate value is obtained with a coordinate measuring device 47. The positional relation and angle between the detected marking line KL and bending press dies 27 are calculated with operation processor 49, if necessary, the positional relation, etc., between bending press dies 27 and the marking line KL are corrected with a correction commanding device 51.</p> |
