支架冲压工艺分析及多工位级进模设计.doc

设计论文题目:
支架冲压工艺分析及多工位级进模计
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材料成型
材料科学与工程学院
支架冲压工艺分析及多工位级进模设计
摘要
冲裁弯曲级进模广泛用于金属成形零件的生产。本文介绍了支架零件多工位级进模的设计,分析了支架的冲压工艺和冲压工序的组成,对载体和排样设计方案作了比较与选择,分析了产品外形合理的接边工艺,确定了条料的送进与导料方式及定距结构形式,并对模具的主要部件设计作了详细地说明。同时也包含了冲裁力计算,定距方法,冲裁间隙选择,压力中心计算的设计要点。模具上、下固定板具有高精度和长寿命,可快速更换凹模镶块,且重复装配精度高,简化了弯曲工艺,卸料板上安装了弯曲凹模,卸料板既可弹性压料又可刚性卸料。模具结构合理简单、制作容易、节省开支。使模具生产成本降低,提高经济效益,对此类零件的级进模设计有参考价值。
关键词:支架,冲裁弯曲,多工位级进模,工艺分析,排样图
Design of Blanking-Bending multi-position progressive die for Support
Abstract
Blanking-Bending multi-position progressive die were widely used in metal parts production. Though this paper, we could get the method of support design. And the technological process for stamping the part is analyzed and the layout designs pared, rational joint-edge process of products outline, decided the guiding of the bar stock and the form of the fixed distance , describes the key die parts in detail. At the same time, includes the main design point of stamping force calculation , fixed distance method, the selection of stamping clearance, compress force center an so on . The die plate are of high precision long service life. The die inserts can be replaced rapidly and the repeat assembling accuracy is high. The bending punch is installed on the stripping plate, which can clamp the work pieces flexibly and later strip them from the punch rigidly, The die structure is flexible and reliable and product quality can be guaranteed . It has an important reference value to this kinds of parts.
Keywords:Support, Blanking Bending , Multi-Position Progressive die,Forming Process analysis, Layout Design
目录
1 绪论 1
课题简介 1
选题背景 1
设计现状以及发展趋势 2
、目的和要求 6
6
6
6
2 对零件的综合分析 6
7
7
8
8
8
9
9
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12
A区冲裁力及卸料力的计算 14
B区冲裁力及卸料力的计算 14
C区冲裁力及卸料力的计算 14
D区冲裁力及卸料力的计算 14
E区冲裁力及卸料力的计算 15
H