What problems will automobile sheet metal meet in production?

2019-09-06 16:43:14

The automotive sheet metal die represents the generalization that can be classified into the basic graphics. First, search the stamping die library to find out if there is a stamping die that is totally common with the generalization and can be punched out 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 die according to the following criteria:

1For the generalization that can be classified into the basic graphics, first go to the stamping die library to search whether there is a stamping die that is completely in common with the generalization and can punch out 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.

2. For rectangular generalization, when the long side is greater than or equal to 1.5 times of the short side, the active search will be whether there is a square stamping die common to the rectangular short side: whether there is a circular stamping die with the same groove width for the long groove or the circular groove, and if there is one, the die will be directly used. When the die has not been determined by the above two steps, think about using square or circular die to punch straight line or arc step by step.

3. Consider the die set under "Selecting Stamping Die". Analyse whether the line to be stamped is greater than or equal to 1.5 times the edge length of the stamping die and whether the arc diameter to be stamped is larger than the diameter of the stamping die when the inside of the stamping curve of the circular stamping die is inside. If so, use the set die.

4. If the set die is not suitable, the system will search the square or circular die in the stamping die library from small to large, and use the satisfactory straight line to be stamped is greater than or equal to 1.5 times the length of the die edge.

There are many problems encountered in the production of stamping dies. The uneven trimming is one of them. What can cause the uneven trimming of stamping dies?

First, uneven trimming can be caused by positioning offset. We just need to adjust the positioning.

Second: planning errors, the formation of uneven knives, the need to cut edge inserts from the head line to deal with.

Third: There may also be a result of the prohibition of feeding. We just need to adjust the feeder.

Fourth: There are also errors in the calculation of feeding step. At this time, we need to recalculate the step from scratch and reconnect 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 operation and deal with it in time.