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一、简介工件在拉深成型时,当材料相对厚度、材料性能等超过一定的拉深极限时,需增加压边装置,防止边沿出现皱褶。过去以气垫和弹性压边装置为主。气垫压边装置的附属设备投资较大;橡胶压边的特性曲线(随着压编量的增加,单位压力急剧上升)不理想,不适用于较大的拉深件,弹性压边也不适于较大的拉深件,并受到弹簧选用的限制。因此我们设计了新颖、实用的偏心轮压边装置。它主要适用于批量生产的小型封头及类似的拉深
First, the introduction of the workpiece in the deep drawing, when the relative thickness of the material, material properties over a certain drawing limit, the need to increase the pressure device to prevent edge wrinkles. In the past to air cushion and elastic blank holder device mainly. The investment of ancillary equipment of the cushion blank holder is large; the characteristic curve of the blank holder (the unit pressure increases sharply with the increase of the amount of the compaction) is not ideal, and it is not suitable for larger drawing parts. The elastic blank holder is not suitable Larger parts are subject to spring restrictions. Therefore, we designed a novel and practical eccentric wheel blanker. It is mainly suitable for mass production of small head and similar drawing