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摘 要

本设计是对给定的模具产品图进行冲压模工艺分析和模具设计，在综合考虑了经济性、零件的冲压工艺性以及复杂程度和精确度等诸多因素的基础上进行冲压工艺分析与计算的，并提出了合理的工艺方案和结构形式，介绍了模具设计中的排样与送料方式和卸料与导向方式，讨论了主要工作件间隙的确定和刃口尺寸及冲压力的计算，并选择合适的压力机，设计中主要对模具工作部分尺寸进行计算和主要零部件的设计以及加工工艺的制定。

该模具提高了制件质量和生产效率，降低了模具成本，制件质量符合生产要求。 关键词：复合模 工艺分析 冲孔 落料

Abstract

This design is to the product chart which assigns carries on flushes the die mold design and mold design process analysis. In the overall evaluation efficiency, the components ramming technology capability as well as the complex degree and accuracy and so on in many factor foundations carried on the ramming craft analysis and the computation, a reasonable process was proposed. The blanking layout and feeding styles, unloading way and guiding method were introduced, and the main components of the mold design and process technology development .The determination of the clearance between working parts and the calculation of punching and blanking compound die were expounded.

This compound die improved product qualities and production efficiency with lower costs. The reliable product quality is achieved.

Key words: Compound Die; Process Analysis; Punching; Blanking

目 录

引言 ................................................................................................................................................. 1 1止动片冲压工艺分析及模具设计 .............................................................................................. 9

1.1设计题目设计一止动片，零件图如下: .......................................................................... 9 1.2冲压件工艺分析 ............................................................................................................... 9 1.3冲压工艺方案的确定 ....................................................................................................... 9 1.4模具结构形式的确定 ..................................................................................................... 10 1.5排样设计 ......................................................................................................................... 10 1.6冲压力的计算 ................................................................................................................. 12

1.6.1冲压力 .................................................................................................................. 12 1.6.2卸料力 .................................................................................................................. 13 1.6.3顶件力 .................................................................................................................. 13 1.6.4模具总冲压力为 .................................................................................................. 13 1.7压力中心的计算 ............................................................................................................. 13 1.8初选压力机 ............................................................................................................................. 15 2模具总体设计 ............................................................................................................................ 16

2.1模具类型的选择 ............................................................................................................. 16 2.2定位方式的选择 ............................................................................................................. 16 2.3卸料方式的选择 ............................................................................................................. 16 2.4出件方式 ......................................................................................................................... 17 2.5确定送料方式 ................................................................................................................. 17 2.6导向方式的选择 ............................................................................................................. 17 3模具工作部分尺寸计算 ............................................................................................................ 18

3.1 工作零件刃口尺寸计算 ................................................................................................ 18

3.1.1冲载间隙分析 ...................................................................................................... 18 3.1.2 落料模具工作零件刃口尺寸计算 ..................................................................... 18 3.1.3冲孔模具工作零件刃口尺寸计算 ...................................................................... 19 3.2.卸料装置中弹性元件的计算 ......................................................................................... 20

3.2.1 卸料块的设计 ..................................................................................................... 20 3.2.2弹性元件橡胶的设计 .......................................................................................... 20

4主要零部件设计 ........................................................................................................................ 23

4.1工作零件的结构设计 ..................................................................................................... 23

4.1.1凸凹模 .................................................................................................................. 23 4.1.2落料凹模 .............................................................................................................. 24 4.1.3冲孔凸模 .............................................................................................................. 27 4.2其它模具零件结构尺寸 ................................................................................................. 29

4.2.1卸料板的设计 ...................................................................................................... 29 4.2.2垫板设计 .............................................................................................................. 30 4.2.3固定板设计 .......................................................................................................... 32 4.3 模架的选用 .................................................................................................................... 34

4.3.1上、下模座的设计 .............................................................................................. 34 4.3.2导柱、导套及模架的选用 .................................................................................. 35 4.4其它标准零件的选用 ..................................................................................................... 38

4.4.1模柄的选用 .......................................................................................................... 38