机械5

摘要 本文是对垫片的冲孔及其落料及其落料模具的设计，通过对零件图形的结构和生产工艺性的分析，决定采取冲孔和落料在同一道工序完成的复合模。同时考虑到倒装式复合模的冲孔废料直接由冲孔凸模从凸凹模内孔推下，无顶件装置，结构简单，操作方便，故采用倒装式复合模具。 此倒装式复合模具的设计，包含：1、首先对零件的工艺性进行分析，然后选择了几个可行方案，接着对工艺方案进行演算和比较，最终确定采用倒装式复合冲裁模，2、制定工艺流程，选择排样图，对材料的利用率进行计算，3、初步确定冲模结构，包括：（1）模具的具体形式（2）定位装置（3）卸料装置（4）导向零件（5）模架4冲裁力计算5、模具刃口尺寸的计算6、冲裁模具主要零件的设计及计算，包括：（1）落料凹模（2）冲孔凸模（3）凸凹模7、标准零件的设计及计算，包括（1）模架（2）导柱、导套（3）上、下模座（4）卸料螺钉8、其它支撑零件，包括（1）模柄（2）固定板及垫板9、紧固件的选择。 关键词：链板片、冲压工艺、倒装复合模 Abstract This article is to pu
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nd the desig
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n the graphic structure a
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nalysis, decided to take a process with pu
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nd mould desig
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ng process, choose the layout diagram, the material utilizatio
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ng (1) (2) the guide pi
n, guide sleeve (3) (4) the upper a
nd lower die shoe dischargi
ng screw 8, other supporti
ng parts, i
ncludi
ng (1) (2) the ha
ndle fixed plate a
nd plate 9, selectio
n of faste
ners. Keywords:chai
n plate, stampi
ng process, flip composite modulus 目录 1.前言1 2.冲压件工艺分析5 3.冲裁方案的确定7 4模具总体结构的确定9 5模具设计工艺计算13 5.3冲压设备的选择17 5.3.1压力中心的确定17 5.3.3冲压设备的校核19 5.4.2刃口尺寸的计算及依据20 6主要零部件设计23 6.2凸模的设计24 6.2.1凸模结构的确定24 6.2.2凸模材料的确定25 6.3凸凹模的设计26 6.3.1凸凹模外形的确定26 6.3.3凸凹模精度的确定27 6.3.4凸凹模壁厚的确定27 6.4卸料装置的选用28 6.4.1卸料装置的选用28 6.4.2卸料板外型的设计28 6.4.3卸料板材料的选择30 6.4.5卸料板整体精度的确定30 6.5卸料橡胶的选用30 6.6固定板的设计31 6.6.1凸模固定板的设计31 6.6.2凸凹模固定板的设计32 6.7垫板的设计32 6.8上下模座、模柄、打杆的选用33 6.8.1上下模座的选用33 6.8.2模柄的选用33 结论35 致谢37 参考文献39