| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a press brake that can bend a workpiece accurately. <P>SOLUTION: The press brake 1 includes: a lower table 3; an upper table 5 movable in both directions of approaching to and separating from the lower table 3; a deflection amount measuring unit 7 for measuring a deflection amount of the upper table 5 and a deflection amount of the lower table 3; a crowning unit 9 for correcting the deflection of the lower table 3; and a control unit 23 for controlling the crowning unit 9 to correct the deflection of the lower table 3 based on the deflection amount measured by the deflection amount measuring unit 7. <P>COPYRIGHT: (C)2013,JPO&INPIT |
