What is the upper die and lower die of the bending machine? Let's see how the molds are classified

Published on:2022-05-11　　　　 Browse times

1. Bending machine molds include L-type, R-type, U-type and Z-type molds

2. The upper die of the bending machine has different angles of 90 degrees, 88 degrees, 45 degrees, 30 degrees, 20 degrees and 15 degrees. The lower die is generally divided into 400 mm, 200 mm, 100 mm, 50 mm, 40 mm, 20 mm, 15 mm and 10 mm, with a total of 835 mm.

3. The lower die of the bending machine has 4 ~ 18V double groove and single groove, with different groove widths, as well as R lower die, acute angle lower die, flattening die, etc.

4. The upper and lower forms are divided into sections and whole: the upper form is generally divided into 300mm, 200mm, 100mm, 100mm, 50mm, 40mm, 20mm, 15mm and 10mm, and the whole is 835mm.

Six characteristics of bending machine die

1. Bending machine dies are made of steel and undergo special heat treatment. It has the characteristics of high hardness, not easy to wear and bear high pressure. But each set of mould has its limit pressure: T / m. Therefore, when using the mold, the length of the mold should be selected, that is, how much pressure should be added per meter, and the pressure should not exceed the pressure marked by the mold.

2. In order not to damage the mold, we stipulate that the upper and lower molds with a length greater than 300mm must be used for origin. After the origin correction, the upper and lower molds with the same height can be used. It is strictly prohibited to use separated small modules to perform the origin, and the origin must be based on the origin pressure in Amada machine.

3. When using molds, due to the different heights of various molds, molds with the same height can only be used in the machine, not molds with different heights.

4. When bending the acute angle or pressing the dead angle, select 30 degrees. First bend the acute angle, and then press the dead angle. When bending R angle, R upper die and R lower die shall be selected.

5. When bending a long workpiece, do not use the parting die to reduce the indentation of the tool, but choose a single groove, because the outer angle R of the V-shaped groove of the die under the single groove is large and it is not easy to produce indentation.

6. When selecting the upper die, we should know all the parameters of the die, and then decide what to use according to the shape of the product we need to form