The structure form of busbar mold, forming composite bending die is composed of three parts, the upper die under the mould and the lower mould transposition mechanism and hydraulic system composed of cable tray, combination mode mainly includes the main die 1, side die 4, reset spring 10 and pre pressure cylinder 2 parts etc.. The auxiliary pressing die is arranged in the main die guide groove, and the upper part of the upper die is arranged on the bending machine by the action of the reset spring and the pre pressing small oil cylinder. The lower die mainly comprises a lower die body 6, a ejector rod, a reset spring, a transposition plunger cylinder 13, a transposition base, a plurality of parts and a plurality of parts, such as a lower die body 5, a displacement base, a plurality of parts, and a plurality of parts, such as a displacement column, a displacement base, a plurality of parts, and a plurality of parts. The. Similarly, the installation form die transposition mechanism on the worktable bending machine installed with ordinary bending die is the same, while the lower die body can be moved in the transposition plunger cylinder under the action of the transposition precision positioning rod 12 by adjusting precise positioning.
The working principle, the combination of the first bending die, the lower die body in the work position, bending the first U shaped groove die to complete the main busbar of repression, die return, lower die ejector stroke sheet, second position sheet into the combination die down, side die first the compaction of sheet blank, the blank control one-way move then, forming the main die again to complete the second U grooves. Similarly, the sheet material into the next station to complete the U groove bending forming. Then, the cylinder transposition action to promote phantom transposition, the lower die body V groove is in the working position, at this time, the combination of deputy head in the reset reset mode under the action of the spring, the right angle side of the bending parts in order to complete the V shaped groove. The feeding distance of sheet metal can be controlled by the bending machine in order to ensure the precision of parts.