Regripping (RG) Stations
The way in which the gripper holds the part might need to be changed between some bends. The robot gripper releases the part, moves to the new orientation and re-grips the part.
During this time, the part can be secured by the regripping stations, or (if the part is small enough) clamped between the punch and die.
Such a clamped regripping can happen before the bend (part clamped in flat position), or after the bend (part clamped in post-bend position).
For example, the gripper might need to hold the part from the other side, or we might need to shift the grip position to avoid a collision with the machine table. This is done by a regrip operation.
Figure 1. Without Regripping
Figure 2. With Regripping
We will further discuss the Regripping options in detail from the below topics: