冷辗凸模的反击冷校

Cold straightening by inverted hit for the cold spreading punch

为了解决生产中出现的凸模弯曲报废的问题,分析了冷辗凸模制造工艺,探讨了对冷辗凸模反击冷校的方法,详细介绍了校直的工具和过程,并从理论上分析了校直机理。把校直后的凸模应用在实际生产中取得了满意的结果。实践证明,反击校直不仅可以校直小直径的工件,也可以校直大直径的杆类以及带有简单阶台、有一定长度的轴类工件。

To deal with the bending obsolescence of the punch,the manufacturing process of the cold spreading punch is analyzed,and the straightening method with inverted hit is dis-cussed in detail.The tools and process of straightening are introduced,and the straightening mechanismis theoretically analyzed in this paper.The punch after straightening can satisfy the demands in practical application.It has proved that not only the small diameter work-pieces but also the bars with large diameters and the shafts with certain distances and simple steps can be straightened.