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摘 要
防護(hù)罩——落料拉深沖孔復(fù)合模設(shè)計。通過分析制件的工藝性可確定制件的成形加工需要二副模具完成。即一套復(fù)合模和單工序拉深模。復(fù)合模是指沖床在一次行程中，完成落料、沖孔等多個工序的一種模具結(jié)構(gòu)。相對其他冷沖壓模具結(jié)構(gòu)而言，它具有以下一些優(yōu)點：①工件同軸度較好，表面平直，尺寸精度較高； ②生產(chǎn)效率高，受條料外形尺寸的精度限制較小。但需考慮的問題是：模具零部件加工制造比較困難，成本較高，并且凸凹模容易受到最小壁厚的限制。
單工序彎曲模的通用性能好，且制造簡單。容易保證制件精度。
該制件形狀較簡單、對稱。材料為優(yōu)質(zhì)08鋼。工藝性好。
關(guān)鍵詞：復(fù)合模 工藝性能 凸凹模 模具制造
Abstract
summary: Shield-blanking tensile punching compound die stamping design .The craft that passes the analysis system piece can make sure to make the piece to take shape to process to need two molding tools to complete .Namely a set of compound mold and the single work preface bent mold .The compound mold mean the punching machine is in a route of travel, completing to fall to anticipate, a kind of molding tool structure of several work prefaces of etc. of blunt bore .Opposite and other cold hurtle to press the molding tool structure but speeches, it has following some advantageses :The ① work piece is together the stalk degree is better, the surface is straight and even, the size accuracy is higher; The ② produces the efficiency high, be subjected to the anticipates the shape size of accuracy limit smaller .But need the problem of the consideration is :The molding tool zero partses process the manufacturing more difficulty, the cost is higher, and the convex and cave mold is subjected to the thick restrict of minimum wall easily.
The single work preface curves the in general use function of the mold good, and the manufacturing is in brief .An accuracy of easy assurance system.
Should make a shape to compare simple, symmetry .The material is high-quality 08 steelses .Craft good.
Keyword: compound die craft function The convex and cave mold molding tool manufacturing