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河南機(jī)電高等?？茖W(xué)校畢業(yè)設(shè)計說明書
摘 要
本設(shè)計題目為油箱蓋沖壓模設(shè)計，體現(xiàn)了拉深類零件的設(shè)計要求、內(nèi)容及方向，有一定的設(shè)計意義。通過對該零件模具的設(shè)計，進(jìn)一步加強(qiáng)了設(shè)計者復(fù)合模設(shè)計的基礎(chǔ)知識，為設(shè)計更復(fù)雜的復(fù)合模具做好了鋪墊和吸取了更深刻的經(jīng)驗。
通過分析制件的工藝性可確定制件的成形加工需要一副復(fù)合模具完成。復(fù)合模是指沖床在一次行程中，完成落料、拉深、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
關(guān)鍵詞：復(fù)合模 工藝性能 凸凹模 模具制造
Abstract
The requirement ，content and direction of the design of the deep thin wall plastic parts are embodied on this injection mould design of the plastic parts of long pipe box. The designer’s foundation knowledge of the injection mould design is reinforced and is able to design more complex injection mould through the design.
Through analyzes the workpiece the technology capability to bepossible to determine the workpiece the formed processing needs acompound mold to completeThe 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.
Keyword:Compound mold craft function The convex and cave mold Molding tool manufacturing