How to use the bending die?
Bending dies include L-type, R-type, U-type, Z-type and other types of bending. The upper die mainly includes 90°, 88°, 45°,
30°, 20°, 15° and other different angles. The lower die has double grooves and single grooves with different groove widths from 4 to 18V, as well as R lower dies, acute angle lower dies, flattening dies, etc. The upper and lower molds are divided into sections and wholes: the upper mold sections are generally 300mm, 200mm, 100mm, 100mm, 50mm, 40mm, 20mm, 15mm, 10mm, and the whole is 835mm. The lower mold is generally divided into 400mm, 200mm, 100mm, 50mm, 40mm, 20mm, 15mm, 10mm, and the overall size is 835mm.
① The bending die is made of high-quality steel through special heat treatment. It has the characteristics of high hardness, not easy to wear, and high pressure. However, each set of dies has its ultimate pressure: tons/m, so when using the die Correctly select the length of the mold, that is, how much pressure should be added per meter, and must not exceed the pressure marked on the mold. ② In order not to damage the mold, we stipulate that when aligning the origin, the upper and lower molds with a length of more than 300mm must be used to align the origin. Only after the origin is aligned can the upper and lower molds of the same height be used. It is strictly forbidden to use split small molds to align the origin, and the origin must be based on the origin pressure inside the AMADA machine. ③ When using molds, because the heights of various molds are inconsistent, when selecting molds on one machine, only molds of the same height can be used, and molds of different heights cannot be used.
④ When using the mold, it is necessary to select the appropriate upper and lower molds according to the material hardness, thickness and length of the metal sheet. Generally, the lower mold is used according to the standard of 5~6T, and the length should be longer than the sheet metal. When the material is harder 1. For materials with greater thickness, lower molds with wider grooves should be used.
⑤ When bending an acute angle or pressing a dead angle, the angle above 30 degrees should be selected, and the acute angle should be bent first, and then the dead edge should be pressed. When bending the R angle, the R upper die and the R lower die should be selected.
⑥ When bending a long workpiece, it is best not to use a segmented mold to reduce the indentation of the tool, and it is best to use a single groove, because the outer angle R of the V groove of the lower mold of the single groove is large, and it is not easy to produce bending indentations .
⑦ When selecting the upper mold, which upper mold to use, we should understand the parameters of all the molds, and then decide which upper mold to use according to the shape of the product to be formed.
⑧ When bending products with extremely hard hardness or too thick sheets, it is not allowed to use molds to bend steel bars or other cylindrical products.
⑨ When using the mold, you should be clear-headed. After the machine finishes aligning the origin, you should lock the upper and lower molds. Don’t let the mold fall down, hurt people or the mold. During the operation, pay attention to the pressure, and don’t apply too much pressure at once. , Pay attention to the data changes displayed on the screen.
⑩ After the mold is used up, put it back on the mold rack in time, and put it away according to the label, clean the dust on the mold frequently, and apply anti-rust oil to avoid rust and reduce the precision of the mold.
