软硬模辊式冲压模具设计及工艺优化

软硬模辊式冲压模具解决了传统钢质模辊冲装置存在的干涉问题,但在实际使用中仍存在诸多缺陷,如:上下辊的易调节操纵性差、板料冲裁加工变形大等。结合冲压模具的实际应用情况,对软硬模辊式冲压模具进行了结构改进和冲头优化设计。优化调整了下辊高度的楔形机构,保证冲压时的重叠量且更容易实现上下辊的水平度;将辊式冲压机上的平刃口圆柱冲头改为中空内斜刃冲头,减小了冲压后产生的塌陷深度,提高了板料的平整度。经计算仿真和实验验证,表明本文所提出的优化方案切实可行,能够有效提高冲压质量。

Design and process optimization on soft and hard die roller stamping die

The interference problem of traditional steel die roller stamping device has been solved by the soft and hard die roller stamping die, but there are still many defects in practice, such as the difficulty in adjusting upper and lower rollers and the large deformation in blan-king of the sheet metal. Therefore, combined with the actual application of stamping die, the structure of the soft and hard die roller stam-ping die was improved, and the design of punch was optimized. Then, the wedge mechanism of lower roller height was optimized and adjus-ted to ensure the amount of overlap and achieve the levelness of the upper and lower rollers easily. Furthermore, the cylindrical punch of the flat edge in the roller press was changed into a hollow inner inclined blade punch to reduce the collapse depth after stamping and improve the flatness of sheet metal. The simulation and experimental results show that the proposed optimization scheme is feasible and can effectively improve the quality of stamping.