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焊片沖壓成形工藝及模具設計
摘要：本設計題目為復合模具設計，體現(xiàn)了典型復合模具設計的要求，內(nèi)容與方向。通過工藝分析，工藝方案的確定，確定了模具設計的方向， 對毛坯尺寸的確定，計算沖裁力，來計算壓力中心，選擇壓力機和壓力機的噸位。復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構。相對其他冷沖壓模具結構而言，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。
本設計運用了沖裁工藝及模具設計的基礎知識。首先，分析了板材的性能要求，為選去模具的類型做了準備，同時，也為凸，凹模的材料有了依據(jù)。后分析沖裁件的特征，確定了模具設計參數(shù)，選擇其他零件及卸料裝置。也為凸，凹模尺寸的計算有了根據(jù)。還有零件的加工工藝。
關鍵詞: 復合模 工藝性能 凸凹模 模具制造
Soldering lug ramming superposable die design
Abstract: This design topic designs for The piercing die design of the dunnage backup plate, body now typical model The piercing die design of request, contents and direction.Pass the craft analysis, the craft project really settles, making sure the direction of The piercing die design, really settling to the blank product size, computing to the blanking pressure, compute the pressure center, choose the tonnage of the pressure machine and the pressure machine. 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.
This design made use of to hurtle foundation knowledge of blanking craft and The piercing die design. First, Analyzed the function request of the plank material, did preparation for the type that chooses to the die, is also convex, in the meantime, the material of punch and cavitydie had a basis.Analyze to hurtle a characteristic of cut the piece behind, make sure the molding tool design parameter, choose other spare partses and unload to anticipate device.Is also convex, the calculation of the cave mold size had a basis.Still there is spare parts to process a craft.
Keywords:Compound mold craft function The convex and cave mold molding tool manufacturing