The structure form and working principle of the busbar groove die

The cable bridge forming combination bending die is composed of three parts: the combination upper die, the lower die and the lower die transposition mechanism and the hydraulic system. The combination upper die mainly includes the main press die 1, the auxiliary press die 4, the reset spring 10 and the prepressure small oil cylinder 2。The auxiliary die is installed in the guide groove of the main die, which is sliding up and down by the action of the reset spring and the pre-pressed small oil cylinder. The installation form of the upper die on the bending machine is the same as that of the ordinary bending die。The lower die mainly includes the lower die body 5, ejector rod 6, return spring 9, transposition plunger cylinder 13, transposition base 7 and other parts。Similarly, the installation of the lower die transposition mechanism on the bending machine workbench is the same as that of the ordinary bending lower die, and the lower die body can be moved under the action of the transposition plunger cylinder, and the transposition accuracy can be adjusted by the positioning rod 12。

The working principle of the combined bending die，首先，The lower mold body is in the working position of the diagram，The main die completes the bending and pressing of a U-shaped slot of the busbar groove，Upper die return，Lower die ejector rod ejector plate，The sheet material enters the second station，Combination upper die down，The auxiliary die first presses down to achieve the blanking of sheet metal，Control the unidirectional movement of its sheet material，然后，The main die again completes the forming of the second U-shaped groove。Similarly, the sheet material enters the next station in turn to complete the bending of each U-shaped slot。Then, the transposition of the lower die body is driven by the action of the transposition cylinder, and the V-shaped groove of the lower die body is in the working position. At this time, the pressure head of the combined upper die pair is reset under the action of the reset spring, and the bending of each right Angle edge of the workpiece is completed in sequence in the V-shaped groove。The feeding distance of the sheet material in the forming process can be controlled by the baffle of the bending machine to ensure the accuracy of the workpiece