冲压件生产的自动化说明书毕设论文.doc

摘 要 随着制造业的发展，现在模具设计应满足自动化、精密化等要求。级进模比单工序模具和复合模更有利于实现冲压件生产的自动化，大大的提高了生产率。而级进模的好坏依然取决于模具的结构。多工位级进模要求具有高精度、长寿命，模具的主要工作零件常采用高强度的高合金工具钢、高速钢或硬质合金等材料。模具的精加工常采用慢走丝线切割加工或成形磨削。在多工位级进模中，常有很精细的小凸模，必须对这些小凸模进行精确导向和保护。因此要求卸料板能对小凸模提供导向和保护功能。卸料板上相应的孔必须采用高精度加工，其尺寸及相互位置应准确无误。 本模具的细小冲头采用了快换结构，凹模采用镶拼式结构，更有利于模具的维护和维修；模具采用导料板导料，用侧刃及侧刃挡块进行粗定位，导正销进行精定位，有效的保证了制件的精度。采用弹压卸料板，以此保证制件的平整度。如此设计出的结构可确保模具工作运行可靠和冲压产品大批量生产的要求。 关键词：级进模；排样；导正销；冲孔；弯曲 Abstract Summary with the development of manufacturing, mold now design automation, precision requirements to be met. Than a single process of progressive die mold and more conducive to the realization of the compound die stamping production automation, significantly increases productivity. Is good or bad depending on the mould of the progressive die structure. Multi-position progressive die for requiring high precision, long life, major parts of the mold usually made of high alloy tool steel, high-speed steel or carbide material. Finishing often used wire cutting processing of mold or mold grinding. Multi-position progressive die, there is often a fine little punch must be precise guidance and protection for these small punch. Therefore asked the small punch stripper plate to provide guidance and protection. Corresponding holes on the stripper plate must be in high precision machining, its size and their location should be accurate This small punch using the quick change mold structure, die insert-type structure, more conducive to mold maintenance and repair; mould plate Guide material, with a side blade and rough position of side blade block, pilot punches for precision positioning, effectively guarantee the precision of parts. Flick-pressure reposition stripper plate, in order to ensure that flatness of the products. So design the structure ensures die working requirements for reliable operation and stamping products in large quantities. Keywords: progressive die; layout; pilot punches; punches; bend