UG沖壓模具設計教程

目 錄
第1 章 沖壓模具的基本知識········································································.1
1.1 沖壓模具概述·················································································.1
1.1.1 基本概念·············································································.1
1.1.2 沖壓模具的分類····································································.2
1.2 沖壓模具模架·················································································.6
1.2.1 沖壓模具模架的結構······························································.6
1.2.2 沖壓模具模架的分類······························································.7
1.3 沖壓常用材料·················································································.8
第2 章 UG 鈑金設計基礎··········································································.10
2.1 UG 鈑金設計模式·········································································.10
2.1.1 創建新文件········································································.10
2.1.2 鈑金首選項········································································.10
2.2 突出塊························································································.12
2.2.1 底數特征···········································································.12
2.2.2 次要特征···········································································.13
2.3 折彎類························································································.14
2.3.1 彎邊·················································································.14
2.3.2 折彎·················································································.17
2.3.3 二次折彎···········································································.19
2.3.4 輪廓彎邊···········································································.21
2.3.5 折邊彎邊···········································································.24
2.4 沖孔···························································································.26
2.4.1 凹坑·················································································.26
2.4.2 百葉窗··············································································.27
2.4.3 沖壓開孔···········································································.29
2.4.4 筋····················································································.30
2.4.5 實體沖壓···········································································.30
2.4.6 加固板··············································································.31
2.5 實例···························································································.33
2.5.1 固定架··············································································.33
2.5.2 支架·················································································.38
第3 章 UG 沖壓模具模架設計····································································.44
3.1 上模座························································································.44
3.2 下模座························································································.48
3.3 模柄···························································································.48
3.4 導柱···························································································.50
3.5 導套···························································································.50
3.6 裝配模架·····················································································.50
第4 章 沖壓模具設計基礎·········································································.56
4.1 沖裁的基本知識············································································.56
4.1.1 落料·················································································.56
4.1.2 沖孔·················································································.56
4.1.3 沖裁間隙···········································································.57
4.2 凸模與凹模的刃口尺寸··································································.57
4.2.1 刃口尺寸的計算原則····························································.57
4.2.2 凸模與凹模尺寸分開計算法···················································.58
4.2.3 凸模與凹模的配作計算法······················································.61
4.3 沖裁模具的基本知識·····································································.62
4.3.1 搭邊·················································································.62
4.3.2 卸料板與凸模的間隙····························································.63
4.3.3 沖裁力··············································································.64
4.3.4 卸料力··············································································.65
4.3.5 推件力··············································································.65
4.3.6 頂件力··············································································.65
4.3.7 計算沖壓模具的壓力中心位置················································.67
第5 章 UG 落料模具設計··········································································.70
5.1 工藝分析·····················································································.70
5.2 UG 落料模具的建模過程································································.73
5.3 UG 沖孔模具裝配設計···································································.79
5.4 編輯裝配圖··················································································.83
第6 章 UG 沖壓模具工程圖設計·································································.85
6.1 創建模具零件工程圖·····································································.85
6.1.1 調出零件圖········································································.85
6.1.2 新建圖紙頁········································································.86
6.1.3 創建中心線········································································.87
6.1.4 標註尺寸···········································································.88
6.1.5 創建圖框···········································································.91
6.1.6 創建標題欄········································································.92
6.1.7 註釋文本···········································································.94
6.2 創建裝配圖的工程圖·····································································.95
6.2.1 新建圖紙頁········································································.95
6.2.2 創建標題欄········································································.98
6.2.3 創建零件明細表·································································.100
6.2.4 修改零件明細表·································································.102
6.2.5 在裝配圖上生成符號標註·····················································.105
6.2.6 創建註釋文本····································································.107
第7 章 UG 沖孔模具設計·········································································.109
7.1 工藝分析····················································································.109
7.1.1 零件產品分析····································································.109
7.1.2 計算壓力中心····································································.109
7.1.3 選用壓力機·······································································.110
7.1.4 計算沖孔模具工作部件的尺寸···············································.111
7.2 UG 沖孔模具結構簡圖··································································.112
7.2.1 創建沖孔模具零件結構簡圖··················································.112
7.2.2 裝配沖孔模具零件······························································.113
第8 章 彎曲模具設計基礎········································································.115
8.1 彎曲模具的基本知識····································································.115
8.1.1 彎曲模具的基本概念···························································.115
8.1.2 應變和中性層概念······························································.115
8.2 彎曲件的展開尺寸計算·································································.117
8.2.1 中性層圓角半徑R＞0.5t 時的彎曲件········································.117
8.2.2 中性層圓角半徑R＜0.5t 時的彎曲件········································.118
8.2.3 運用繪圖軟件計算彎曲件中性層展開長度································.119
8.3 彎曲模具的壓力計算····································································.122
8.3.1 自由彎曲力·······································································.122
8.3.2 校正彎曲力·······································································.123
8.3.3 頂件力·············································································.123
8.3.4 公稱壓力··········································································.124
8.4 回彈值·······················································································.127
8.4.1 凸模圓角半徑回彈值···························································.127
8.4.2 凹模圓角半徑回彈值···························································.128
8.4.3 模具深度對回彈值的影響·····················································.128
8.5 彎曲模具的凸模與凹模的間隙························································.129
8.6 彎曲90°時凸模和凹模的尺寸計算···················································.130
第9 章 UG 彎曲模具設計·········································································.132
9.1 工藝分析····················································································.132
9.1.1 計算彎曲件展開長度···························································.132
9.1.2 確定凸模圓角半徑和凹模圓角半徑·········································.133
9.1.3 確定凹模深度····································································.133
9.1.4 計算凸模和凹模的單邊間隙··················································.133
9.1.5 計算凸模和凹模的尺寸························································.133
9.1.6 計算彎邊角度回彈值···························································.134
9.1.7 計算自由彎曲力·································································.134
9.1.8 設計橡膠塊尺寸·································································.134
9.1.9 選用壓力機·······································································.134
9.2 UG 彎曲模具結構簡圖··································································.134
第10 章 拉深模具設計基礎······································································.138
10.1 拉深模具的基本知識···································································.138
10.2 拉深次數的計算方法···································································.140
10.2.1 根據公式計算拉深次數·······················································.140
10.2.2 根據拉深相對高度確定拉深次數···········································.140
10.3 常用拉深方法············································································.141
10.4 修邊余量··················································································.142
10.5 壓料力·····················································································.143
10.6 拉深力·····················································································.143
10.7 拉深模具間隙············································································.145
10.8 拉深模具的凹模和凸模尺寸計算····················································.145
10.9 拉深模具的凹模圓角和凸模圓角半徑計算········································.146
10.10 各次拉深時的拉深件高度計算·····················································.146
10.11 毛坯尺寸計算···········································································.147
第11 章 UG 拉深模具設計·······································································.152
11.1 工藝分析··················································································.152
11.1.1 計算修邊余量···································································.152
11.1.2 計算毛坯尺寸···································································.152
11.1.3 確定拉深次數···································································.153
11.1.4 計算各次拉深對應的拉深直徑··············································.153
11.1.5 計算各次拉深對應的凸模圓角半徑········································.154
11.1.6 計算各次拉深對應的拉深高度··············································.154
11.1.7 繪制各個工序對應的工件結構簡圖········································.154
11.1.8 橡膠塊尺寸計算································································.155
11.1.9 計算各工序的凸模和凹模尺寸··············································.156
11.2 UG 拉深模具結構簡圖·································································.157
第12 章 翻邊模具設計基礎······································································.160
12.1 翻邊模具基礎知識······································································.160
12.2 內緣翻邊··················································································.161
12.2.1 圓孔翻邊·········································································.161
12.2.2 非圓孔翻邊······································································.164
12.2.3 翻孔力、翻邊力和壓料力····················································.166
12.2.4 翻孔模具設計···································································.166
12.3 外緣翻邊··················································································.168
12.3.1 平面伸長翻邊···································································.169
12.3.2 平面壓縮翻邊···································································.170
第13 章 滑塊與斜頂結構設計···································································.174
13.1 外滑塊結構···············································································.174
13.2 內滑塊結構···············································································.175
13.3 斜頂結構··················································································.177
參考文獻································································································.179