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墊板沖孔落料級進(jìn)模設(shè)計
摘要：通過分析制件的工藝性可確定制件的成形加工需要一副模具完成。在這副級進(jìn)模中，可以完成包括沖孔、落料兩道沖壓工序。首次沖孔采用始用擋料銷定位；落料采用固定擋料銷和導(dǎo)正銷定位。相對其他冷沖壓模具而言，它具有以下一些優(yōu)點：
① 模具壽命較長；
②生產(chǎn)效率高；
③成本低。
關(guān)鍵詞：級進(jìn)模、始用擋料銷、固定擋料銷、導(dǎo)正銷
Backing plate——Piercing and blanking
progressive die design
Abstract：backing plate——Piercing and blanking progressive die design .Through the analysis of the piece,make sure that one mold can produce the baking plate we need. In this progressive die,it includues piercing and blanking –two working procedures.When we first cut the hole,the work piece holded by starting stop ;when blanking ,the material are loated by the pilote and stop pin.Comparing to other press methods, it has some chracteristices fellowing:
First,the life of the mold is long ;
Second,the efficiency of the mold is high.
Third,the cost of the mold is low.
Keys words: progressive die; starting stop; the pilote ;stop pin.