空调内机挡风板冲压工艺分析及模具设计（本科毕业论文设计）.doc

摘 要
空调内机挡风板是空调内部一个重要的组成件，它位于风扇的上侧与蒸发器的下侧之间。挡风板尺寸较大，板体两侧有孔、周边有多处缺口和竖边。要求制件的高度差不可过大，以保证与空调机身的配合。挡风板的这些特点决定了其成形的复杂性和工艺方案的多样性。
论文分析了空调内机挡风板产品特点及冲压工艺性。根据冲压理论知识，对挡风板冲压工艺方案进行了分析比较。利用数值模拟技术对挡风板成形过程进行了模拟，通过模拟结果的分析，预测了可腀@鱿值娜毕荩员闶导噬胁扇」ひ沾胧┍苊馊毕莶＠媚＞呱杓频南喙刂抖缘卜绨宄尚文＞吆颓斜叱蹇赘春夏＞呓辛松杓疲欢怨丶ひ詹问跋嘤ぷ鞒叽缃辛思扑悖煌瓿闪四＞咦茏巴技肮丶慵牧慵蓟嬷啤Ⅻbr>
关键词：空调内机挡风板、数值模拟、工艺方案、模具设计





















ABSTRACT
The wind-board of air-conditioner is an important component inside the air-conditioner, it is between the upper side of the fan and the lower side of the plate body. The wind-board is a litter larger; there are some holes on both sides of the body panel. A number of gaps and vertical edges surrounding the wind-board. It demands that the high-low deflection of its periphery not too big. These features of the wind-board make the forming process complicated and the processing plans various.
This paper analyses the features and the stamping process of the wind-board of air-conditioner. According to the theoretical knowledge of stamping, this paper analyzes and compares its forming processes plans. Use of numerical simulation, wind-board forming process is simulated. According to the analysis of the simulation results, this paper forecasts possible vulnerabilities, so as to take measures to avoid defects in the actual production process. The paper designs forming die and blanking-piercing compound die use of the knowledge of mould design. calculates the key process parameters and corresponding working size, accomplishes assembly drawing of forming die and blanking-piercing compound die, as well as part drawing of key accessories in the dies.

Key words： Wind-board of Air-conditioner, Numerical Simulation, Processes Plans, Mould Design



目 录
摘 要 I
ABSTRACT II
目 录 III
1 绪论 1
1.1课题研究背景 1
1.2 国内外研究现状 1
1.3 研究内容 2
1.3.1 空调内机挡风板冲压工艺性分析 2
1.3.2 空调内机挡板板冲压成形过程数值模拟 2
1.3.3 空调内机挡风板冲压模具设计 2
1.4 研究的目的及意义 2
1.5 研究的可行性 3
2 空调内机挡风板冲压工艺性分析 4
2.1零件结构分析 4
2.2零件材料分析 4
2.3零件成形特点及工艺重、难点分析 4
2.4分析并初步确定工艺方案 5
3 空调内机挡风板冲压成形过程数值模拟 6
3.1数值模拟技术概述 6
3.2有限元模型建立 7
3.3 ETA/DYNAFORM模拟过程 7
3.3.1 前处理 7
3.3.2 模拟设置（自动设置） 8
3.3.3 后处理 9
3.4数值模拟结果及缺陷分析 10
3.5参数优化及工艺设计 11
4 空调内机挡风板冲压模具设计 7
4.1概述 7
4.1.1 冲压模具 7
4.1.2 模具材料 7
4.2成形模具设计 8
4.2.1成形力计算 8
4.2.2选择冲压设备 9
4.2.3模具零件设计 10
4.2.4模具结构设计 11
4.3切边冲孔模具设计 12
4.3.1冲裁力计算 12
4.3.2选择冲压设备 13
4.3.3计算模具压力中心 13
4.3.4刃口尺寸计算 21
4.3.5模具零件设计 25
4.3.6 模具结构设计 27
5 结论 28
致谢 29
参考文献 30