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 the stamping die library whether there is a stamping die which is completely common with the generalization and can punch out the generalization with one stamping action. If there is such a die, the stamping die set in 'select stamping die' will be ignored, 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, it will actively search whether there is a square stamping die common with the short side of the rectangle; for the long circular groove or circular groove, whether there is a circular stamping die with the same slot width, if so, the die will be directly used. If the stamping die is not determined through the above two steps, the square die or the circular die should be used to step punch the straight line or arc.
③ First of all, consider the die set in 'select the stamping die'. For the set square die, analyze whether the straight line to be punched is greater than or equal to 1.5 times of the side length of the die, and analyze whether the diameter of the arc to be punched is greater than the diameter of the die when the inner side of the circular die stamping curve is. If so, use the set die.
④ If the set die is not suitable, the system will search the square or circular die from small to large in the stamping die library, and the satisfied straight line to be punched is greater than or equal to 1.5 times of the die side length.
There are many problems encountered in the production of stamping dies. One of them is uneven trimming. What are the causes of uneven trimming of stamping dies? We list some causes of uneven trimming of stamping dies and corresponding treatment methods
1： Uneven trimming can be caused by positioning offset, we just need to adjust the positioning.
2： Planning fault, the formation of uneven knife, the need to cut the cutting edge insert from the head line to deal with.
3： It can also be caused by forbidden feeding. We just need to adjust the feeder.
4： In addition, it can be caused by the wrong calculation of feeding step. At this time, we need to check the step distance from the beginning and reset the cutter position.
The cutting edge of stamping die can be formed by the above four reasons, we must find the right reason in the operation, then we can deal with it in time.
