设计简介
摘 要
冷挤压是精密塑性体积成型技术中的一个重要组成部分。冷挤压是指在冷态下将金属毛坯放入模具模腔内，在强大的压力下和一定的速度作用下，迫使金属从模具中挤出，从而获得所需的形状、尺寸以及具有一定力学性能的挤压件。显然，冷挤压加工是靠模具来控制金属流动，考金属体积的大量转移来形成零件的。本设计介绍了30万辊套网格零件结构分析、挤压工艺过程、挤压设备选择、模具结构的设计、凹凸模设计、挤压件质量分析、30万辊套网格模芯的结构、凸模加工工艺及模具各部件造型进行论述。与常规的辊套网格加工工艺相比，冷挤压成型的辊套网格具有强度高、网格尺寸精度高、表面耐磨度高、材料利用率高、生产效率高、设备投资少等优势。
关键词：冷挤压；辊套网格；正挤压； 凸缘
Abstract
Cold extrusion molding technology precise plastic volume is one of the important component. Cold extrusion is to point to in the cold metal blank in the mold cavity inside, in strong pressure and a certain speed function, forced out of metal from a mold, and obtain the shape, size and has some mechanical properties of extrusion parts. Obviously, cold extrusion processing is to rely on the mold to control the flow, take an examination of a large volume of metal parts of the transfer to form. This paper introduced the design of roller set of grid structure parts, extrusion process analysis process, extrusion equipment selection, die structure design, mold design, extrusion bump a quality analysis, 300000 roller set of grid punch structure, the punch processing technology and die parts modelling is described. And the conventional roller set of grid than processing technology, cold extrusion of roller set of grid has high strength, mesh size high precision, high degree of exterior wear-resisting, material utilization high, high production efficiency, equipment less investment and other advantages.
Keywords: Cold extrusion，Roller set of grid，Are squeezing，flange
目 录
摘 要 I
Abstract II
目 录 I
1、冷挤压的概述 1
1.1冷挤压的概念 1
1.1.1冷挤压加工的特点 1
1.1.2冷挤压模具的基本结构 1
1.1.3冷挤压模具分类 2
2、工艺分析及模具结构设计 2
2.1制件的工艺性分析及工艺计算 2
2.1.1工艺分析 2
3、模具总体设计及主要部件设计 2
3.1径向尺寸算法 2
3.2模板尺寸的确定 4
3.2.1择模板材料 4
3.2.2确定模板尺寸 5
3.2.3挤压凸模与凸凹模结构尺寸确定 5
3.3凸模刚度（细长杆失稳）校核 6
3.4模具总体结构设计 6
3.4.1送料定位机构设计 7
3.4.2压块的卸除 7
3.4.3模具主要零件的一般要求 7
4、压力机的规格 7
5、模具结构细节 8
5.1设计构思 8
5.2螺钉的安装 8
5.3干涉检验 8
6、模具装配图 8
致 谢 10
参考文献 11
冷挤压是精密塑性体积成型技术中的一个重要组成部分。冷挤压是指在冷态下将金属毛坯放入模具模腔内，在强大的压力下和一定的速度作用下，迫使金属从模具中挤出，从而获得所需的形状、尺寸以及具有一定力学性能的挤压件。显然，冷挤压加工是靠模具来控制金属流动，考金属体积的大量转移来形成零件的。本设计介绍了30万辊套网格零件结构分析、挤压工艺过程、挤压设备选择、模具结构的设计、凹凸模设计、挤压件质量分析、30万辊套网格模芯的结构、凸模加工工艺及模具各部件造型进行论述。与常规的辊套网格加工工艺相比，冷挤压成型的辊套网格具有强度高、网格尺寸精度高、表面耐磨度高、材料利用率高、生产效率高、设备投资少等优势。
关键词：冷挤压；辊套网格；正挤压； 凸缘
Abstract
Cold extrusion molding technology precise plastic volume is one of the important component. Cold extrusion is to point to in the cold metal blank in the mold cavity inside, in strong pressure and a certain speed function, forced out of metal from a mold, and obtain the shape, size and has some mechanical properties of extrusion parts. Obviously, cold extrusion processing is to rely on the mold to control the flow, take an examination of a large volume of metal parts of the transfer to form. This paper introduced the design of roller set of grid structure parts, extrusion process analysis process, extrusion equipment selection, die structure design, mold design, extrusion bump a quality analysis, 300000 roller set of grid punch structure, the punch processing technology and die parts modelling is described. And the conventional roller set of grid than processing technology, cold extrusion of roller set of grid has high strength, mesh size high precision, high degree of exterior wear-resisting, material utilization high, high production efficiency, equipment less investment and other advantages.
Keywords: Cold extrusion，Roller set of grid，Are squeezing，flange
目 录
摘 要 I
Abstract II
目 录 I
1、冷挤压的概述 1
1.1冷挤压的概念 1
1.1.1冷挤压加工的特点 1
1.1.2冷挤压模具的基本结构 1
1.1.3冷挤压模具分类 2
2、工艺分析及模具结构设计 2
2.1制件的工艺性分析及工艺计算 2
2.1.1工艺分析 2
3、模具总体设计及主要部件设计 2
3.1径向尺寸算法 2
3.2模板尺寸的确定 4
3.2.1择模板材料 4
3.2.2确定模板尺寸 5
3.2.3挤压凸模与凸凹模结构尺寸确定 5
3.3凸模刚度（细长杆失稳）校核 6
3.4模具总体结构设计 6
3.4.1送料定位机构设计 7
3.4.2压块的卸除 7
3.4.3模具主要零件的一般要求 7
4、压力机的规格 7
5、模具结构细节 8
5.1设计构思 8
5.2螺钉的安装 8
5.3干涉检验 8
6、模具装配图 8
致 谢 10
参考文献 11
