| 摘要 |
A method and an apparatus for executing a bending process on a workpiece plate is provided wherein a rear edge of the workpiece plate is place in contact with stop members of a back gauge unit. Simultaneous with input of target value of bending dimensions, a controller provides drive units of the stop members with operative amounts for achieving front/rear directional positioning of the stop members and a gradient angle of a horizontal surface a stop surface corresponding to the target value. In response to the effective value of the operative amount, the drive units are activated to cause stop members to be moved to predetermined positions. After executing a trial bending of a workpiece plate, bending dimensions at two arbitrary bent portions of the processed workpiece plate are measured. When the measured values differ from the target value are input, based on the input values and the target value, the controller computes corrective values for operative amounts of the drive units in order that the stop members can correctively be positioned based on the corrective values, and executes corrective positioning of the stop members based on the calculated values.
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