Sheet metal bending system provided with a press brake and a sheet metal support device and a method to prepare its control data and a computer readable storage medium that stores its control data

A computer readable recording medium which stores control data to control the action of a sheet metal bending system which is provided with a press brake and a sheet metal support device, where the press brake is provided with a punch and die which bends the sheet metal along the bending line by approaching to and parting from each other, and a back gauge to determine the position of the sheet metal against the punch and die, the sheet metal support apparatus is provided with a support arm which supports the sheet metal and may be rotated freely centered on the rotation axis which is parallel to the bending axis, the control data is a control data to control the bending process which includes a plurality of bending processes to produce sheet metal parts (parts) with a plurality of bending lines by the press brake and sheet metal support device by controlling the approach and parting motion of the punch and die and at least the rotational motion of the support arm, and the control data is related to the sheet metal parts ID, and the process number which specifies the ith bending process of the plurality of processes which is related to this ID and related to the process number, the D value which prescribes the target engagement position of the punch and die in the ith bending process and related to the process number, the L value which prescribes the target position of the back gauge in the ith bending process, and related to the process number and the target rotation position of the sheet metal support which corresponds to the D value which specifies the target engagement position of the punch and die and the V width of the die in the ith bending process.