Strategies to Optimize the Part Transport in Crossbar Transfer Presses

In order to keep the production of wide body components profitable, even in high-wage countries, the technology of crossbar transfer presses has been implemented into the stamping plants of automobile companies. In particular with large compliant parts, dynamic problems during the transportation have to be seen as one of the limiting factors for the production stroke rate. So far, there are no tools to investigate these problems in order to optimize the material handling. Based on the interaction of different simulation systems, a solution has been developed to predict these problems as early as during the construction process of a die. It becomes possible to calculate the ideal positions for the part holding suction-cups and to analyze the dynamic behavior of the stamping part during transportation, in order to enhance the productivity of the production plant. The results of the generic methodology have been verified by experimental research on compliant sheet metal parts of automotive industry.