What are the problems encountered in the production of automobile sheet metal parts?

2020-06-14 09:50:43

Automobile sheet metal parts die represents the generalization of the basic figure. First, search whether there is a stamping die that is completely common with the generalization and can be rushed out of the generalization with a stamping action. If there is such a die, the stamping die set under "select stamping die" will be neglected, and the searched stamping die will be directly used.

The system will select stamping dies according to the following criteria:

1. For the generalization that can be classified into the basic figure, first search whether there is a stamping die which is completely common with the generalization and can be produced by a stamping action in the stamping die library. If there is such a die, the stamping die set under "select stamping die" will be neglected, and the searched stamping die will be directly used.

2. For rectangle, when the long side is greater than or equal to 1.5 times of the short side, we will actively search whether there is a square stamping die which is common with the short side of rectangle; for long circular groove or circular groove, we will search whether there is a circular stamping die which has the same groove width, if there is, we will directly use the die. If the above two steps do not determine the stamping die, then consider using square or circular stamping die to step the straight line or arc.

3. First consider the punch set under "select stamping die", analyze whether the straight line to be punched is greater than or equal to 1.5 times of the side length of the punch for the set square die, and analyze whether the diameter of the arc to be punched is greater than the diameter of the punch for the inner side of the stamping curve of the circular punch. If so, use the set die.

If the designed die is not suitable, the system will search for square or circular die from small to large in the stamping die library, and use the straight line to be stamped with satisfaction to be greater than or equal to 1.5 times the side length of the die.

There are many problems encountered in the production of stamping die, one of which is the uneven cutting edge. What causes the uneven cutting edge of stamping die?

1： The unevenness of trimming can be caused by positioning offset. We just need to adjust the positioning.

2： Planning fault, forming uneven connection, need to cut edge inserts from scratch to deal with.

3： It can also be caused by forbidden feeding. We just need to adjust the feeder.

4： It can also be caused by the wrong feeding step accounting. At this time, we need to check the step from the beginning and reset the tool position.

The uneven cutting edge of stamping die can be formed by the above four reasons. We must find the right reason in the operation to deal with it in time.