We must have a comprehensive understanding of bending machine for better usage, pay attention not only to the machine itself but also the matching bending die. The bending die of the bending machine generally adopts the upward forming method, which needn’t the upper plate and the upper pad.
Only when the mold is large, for example, when the height of the die is above 350mm, it will use the upper plate. If the components are small, the hole can be dug directly on the lower die of the press brake machines and then bent it by inserting the bending part. When the bending edge is long with the shape bent, the lower mould forming of the lower bending machine is set with inserts, milling the slot on the lower splint and the pinned, then the thickness of the lower splint is 25, the milling groove depth is 7, the insert width is not less than 30. When there is a longer internal bending, it can be referenced by the inner bending die structure.
There are also factors to be considered in the positioning process of the bending die, including the positioning stability, processing convenience, adjustment flexibility, etc., so the bending die usually chooses the edge positioning of the bending machine instead of the bending edge, and the two positioning distance in the same direction should be as far as possible to ensure the positioning accuracy. When the lower die of the bending machine is a bending block, the positioning block can be fixed on the side of the bending block, and the positioning block is made into a "7" shape.
This positioning method is convenient to adjust and fold. If one side molding, the upper die needs to be added a supporting knife, otherwise the forming angle will be unstable. Before the material starts to form, it must be pressed, so as to prevent the material from running in the molding process, otherwise the bending size will not increase. To reduce unnecessary errors, the bending angle of bending machine should be controlled to 4-6 times thicker of the material thickness, no less than 3 times.
Only when the mold is large, for example, when the height of the die is above 350mm, it will use the upper plate. If the components are small, the hole can be dug directly on the lower die of the press brake machines and then bent it by inserting the bending part. When the bending edge is long with the shape bent, the lower mould forming of the lower bending machine is set with inserts, milling the slot on the lower splint and the pinned, then the thickness of the lower splint is 25, the milling groove depth is 7, the insert width is not less than 30. When there is a longer internal bending, it can be referenced by the inner bending die structure.
There are also factors to be considered in the positioning process of the bending die, including the positioning stability, processing convenience, adjustment flexibility, etc., so the bending die usually chooses the edge positioning of the bending machine instead of the bending edge, and the two positioning distance in the same direction should be as far as possible to ensure the positioning accuracy. When the lower die of the bending machine is a bending block, the positioning block can be fixed on the side of the bending block, and the positioning block is made into a "7" shape.
This positioning method is convenient to adjust and fold. If one side molding, the upper die needs to be added a supporting knife, otherwise the forming angle will be unstable. Before the material starts to form, it must be pressed, so as to prevent the material from running in the molding process, otherwise the bending size will not increase. To reduce unnecessary errors, the bending angle of bending machine should be controlled to 4-6 times thicker of the material thickness, no less than 3 times.
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