Processing technology for preventing progressive die from deviating during hole flanging

The invention discloses a processing technology for preventing a progressive die from deviating during hole flanging, and relates to the field of die processing. The processing technology for preventing the progressive die from deviating during hole flanging comprises the following steps of pre-punching, hole-flanging, bending and cutting, wherein pre-punching and hole-flanging are carried out intwo step pitches; an avoidance structure is arranged on each process after hole flanging; each process is positioned by a positioning pin; and the diameter of each positioning pin is adjustable. The processing technology for preventing the progressive die from deviating during hole flanging provided by the invention is mainly used for effectively avoiding the occurrence of the unqualified phenomena such as the re-punching of a flanged hole and the deviation of the flanging height. 本发明公开了种防止连续模翻孔偏位的加工工艺，涉及模具加工领域。本发明包括如下工序：预冲孔、翻孔、折弯和切断，其中，预冲孔和翻孔位于两个步距内，且位于翻孔后的工序上均设置有避让结构，每个工序均由定位销进行定位，且该定位销的直径可调。本发明的主要用途是可有效避免翻边孔踩孔、翻边高度