锁扣成形工艺及级进模设计+CAD图纸
毕业论文关键词：弯曲件；级续模；排样；结构设计
Design of Progressive Die for the Hasp Part
Abstract:Stamping is a kind of processing method which used the punch press motive power and through changing material’s physical condition to make article appearance.And mould is a necessary tool to proceed stamping.This article takes mould design as core to launch,describes the design process of cover cap forming cold stamping progressive mould,focus on workpiece forming technology and mould structure design. In this paper,the material of this part is high quality carbon steel(45),its thickness is 2mm.This material is a soft carbon steel,strength and hardness is low,but high toughness and plastic.It possesses excellent cold workability of blanking,drawing,curve and upsetting,etc,suitable for processing the sheet forming parts.This paper direct at the forming parts needed of the type of material.Use the equipment of press machine,auto-feeder and cold stamping progressive die to form the stamping network. Completed the basic elements of stamping requirement. The paper analyzes the parts technology firstly,the parts stamping project are determined; Then makes the process layout of the parts carrier,completes the mould parts distribution; Finally,completes the whole die design process.
Key words: Cover Cap；Progressive Mould；Layout；Physical Design
目 录
1 前言 1
1.1 课题研究的主要内容及意义 1
1.2 选题目的 1
1.3 国内外现状及发展趋势 2
2 冲压工艺设计 2
2.1 工艺分析 3
2.2 工艺方案 3
2.2.1 冲压工艺方案的设计 3
2.2.2 工艺方案的确定 4
2.3 弯曲展开计算 4
3 排样设计 5
3.1 载体的选择 5
3.2 带料排样设计准则 5
3.3 排样设计 6
3.3.1 排样 6
3.3.2 搭边 6
3.3 材料利用率计算 6
4 模具工艺尺寸设计 7
4.1 冲压力计算 7
4.1.1 冲裁力计算 7
4.1.2 卸料力及推件力计算 8
4.1.3 弯曲力的计算 8
4.2 压力中心计算 9
4.3 刃口尺寸计算 10
4.4 刃口尺寸的计算方法 11
5 模具零件结构设计 13
5.1 凸、凹模设计 13
5.1.1 凸模结构及其固定 14
5.1.2 凹模结构及其固定 15