三孔托板、固定垫板冲裁模设计
摘要
通过对冲裁工件工艺的正确分析,设计了一副落料模。本设计详细地叙述了模具成型零件包括凸模、凹模及其他零件如卸料板、固定板、垫板、导柱、导套等的设计与加工工艺过程,重要零件的工艺参数的选择与计算,冲裁机构与卸料装置以及其它结构的设计过程,并对着重对模具的设计部分作了详细介绍。
在冲压生产中,生产成本受材料利用率影响最大,材料支出占整个生产成本的75%。本文将介绍一种新的计算方法用于实现在冲压排样设计中的最佳规划方法,以便提高材料利用率。这种计算方法可以预示在带料中结构废料的位置及形状,以及工艺废料的位置和最佳宽度。
关键词:模具设计;冲孔模;落料模;模具结构类型
Abstract
Based o
n the bla
nki
ng process of the correct parts a
nalysis, desig
n of a
n i
ntersectio
n of a mold cavity
nesti
ng a bla
nki
ng die.This desig
n a detailed accou
nt of the mold formi
ng parts, i
ncludi
ng pu
nch a
nd die, a
nd other compo
ne
nts, such as discharge board, a fixed plate, plate, guide pillar, guide sleeve such as the desig
n a
nd machi
ni
ng process, it is importa
nt part of the process parameter selectio
n a
nd calculatio
n, bla
nki
ng age
ncies a
nd u
nloadi
ng devices, a
nd other structures of the desig
n process, a
nd focused o
n the desig
n of part of the mold are described i
n detail. I
n stampi
ng, operati
ng cost are domi
nated by raw material costs,which ca
n typically reach 75% of total costs i
n a stampi
ng facility. I
n this paper, a
new algorithm is described that determi
nes stampi
ng strip layouts for pairs of parts such that the layout optimizes material utilizatio
n efficie
ncy. This algorithm predicts the joi
ntly-optimal bla
nk orie
ntatio
n o
n the strip, relative positio
ns of the paired bla
nks a
nd the optimumwidth for the strip. Examples are give
n for pairi
ng the same parts togetherwith o
ne rotated 180, a
nd for pairs of differe
nt parts
nested together. This algorithm is ideally suited for i
ncorporatio
n i
nto die desig
n CAE systems. Keywords:mold desig
n;pierci
ng die;bla
nki
ng die; type of die structure 目录 引言1 1冲压模具概述2 1.1冲压的概念、特点及应用2 1.2冲压的基本工序及模具3 1.3冲压技术的现状及发展方向3 1.3.1冲压成形理论及冲压工艺方面4 1.3.3冲压设备和冲压生产自动化方面5 1.3.4冲压标准化及专业化生产方面6 1.4材料分析7 2冲裁模设计及步骤9 2.1冲裁工艺性分析9 2.2确定工艺方案10 2.3落料变形的三个阶段10 3冲裁制件排样及设计11 3.1毛坯排样11 3.2工序排样的意义和材料利用率12 3.3工序排样类型13 3.4工序排样样图13 3.5条料尺寸及步距精度15 3.5.1搭边值的确定16 3.5.2条料的宽度16 3.5.3产品零件材料成本16 4冲裁模具初步设计18 4.1冲裁模设计18 4.2冲裁间隙的选用18 4.3凸、凹模工作部分计算19 4.3.1凸、凹模刃口尺寸计算原则19 4.3.2刃口尺寸计算方法19 4.4凸凹模的刃口尺寸设计21 4.5凸模高度设计24 4.6模具零件结构的强度校核25 4.7载体设计25 4.8条料定位方式25 4.9导正方式25 5冲裁力的计算26 5.1冲裁力的计算步骤26 5.2压力中心的确定27 6结构概要设计28 6.1基本结构形式28 6.2基本尺寸28 6.3选模架29 6.4选冲床29 6.5选模柄29 7结构详细设计30 7.1工作单元结构30 7.2卸料机构设计30 7.3定距机构设计30 7.4导正销结构30 7.5送料机构与出件方式30 7.6模具零件的固定31 7.7安全装置31 8模具主要零件加工工艺的分析32 8.1加工过程和工艺32 8.2拟定工艺工艺路线的一般原则32 9结论35 谢辞36 参考文献37
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n the bla
nki
ng process of the correct parts a
nalysis, desig
n of a
n i
ntersectio
n of a mold cavity
nesti
ng a bla
nki
ng die.This desig
n a detailed accou
nt of the mold formi
ng parts, i
ncludi
ng pu
nch a
nd die, a
nd other compo
ne
nts, such as discharge board, a fixed plate, plate, guide pillar, guide sleeve such as the desig
n a
nd machi
ni
ng process, it is importa
nt part of the process parameter selectio
n a
nd calculatio
n, bla
nki
ng age
ncies a
nd u
nloadi
ng devices, a
nd other structures of the desig
n process, a
nd focused o
n the desig
n of part of the mold are described i
n detail. I
n stampi
ng, operati
ng cost are domi
nated by raw material costs,which ca
n typically reach 75% of total costs i
n a stampi
ng facility. I
n this paper, a
new algorithm is described that determi
nes stampi
ng strip layouts for pairs of parts such that the layout optimizes material utilizatio
n efficie
ncy. This algorithm predicts the joi
ntly-optimal bla
nk orie
ntatio
n o
n the strip, relative positio
ns of the paired bla
nks a
nd the optimumwidth for the strip. Examples are give
n for pairi
ng the same parts togetherwith o
ne rotated 180, a
nd for pairs of differe
nt parts
nested together. This algorithm is ideally suited for i
ncorporatio
n i
nto die desig
n CAE systems. Keywords:mold desig
n;pierci
ng die;bla
nki
ng die; type of die structure 目录 引言1 1冲压模具概述2 1.1冲压的概念、特点及应用2 1.2冲压的基本工序及模具3 1.3冲压技术的现状及发展方向3 1.3.1冲压成形理论及冲压工艺方面4 1.3.3冲压设备和冲压生产自动化方面5 1.3.4冲压标准化及专业化生产方面6 1.4材料分析7 2冲裁模设计及步骤9 2.1冲裁工艺性分析9 2.2确定工艺方案10 2.3落料变形的三个阶段10 3冲裁制件排样及设计11 3.1毛坯排样11 3.2工序排样的意义和材料利用率12 3.3工序排样类型13 3.4工序排样样图13 3.5条料尺寸及步距精度15 3.5.1搭边值的确定16 3.5.2条料的宽度16 3.5.3产品零件材料成本16 4冲裁模具初步设计18 4.1冲裁模设计18 4.2冲裁间隙的选用18 4.3凸、凹模工作部分计算19 4.3.1凸、凹模刃口尺寸计算原则19 4.3.2刃口尺寸计算方法19 4.4凸凹模的刃口尺寸设计21 4.5凸模高度设计24 4.6模具零件结构的强度校核25 4.7载体设计25 4.8条料定位方式25 4.9导正方式25 5冲裁力的计算26 5.1冲裁力的计算步骤26 5.2压力中心的确定27 6结构概要设计28 6.1基本结构形式28 6.2基本尺寸28 6.3选模架29 6.4选冲床29 6.5选模柄29 7结构详细设计30 7.1工作单元结构30 7.2卸料机构设计30 7.3定距机构设计30 7.4导正销结构30 7.5送料机构与出件方式30 7.6模具零件的固定31 7.7安全装置31 8模具主要零件加工工艺的分析32 8.1加工过程和工艺32 8.2拟定工艺工艺路线的一般原则32 9结论35 谢辞36 参考文献37
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