(数控模具设计)挤压模建筑铝合金型材(窗用)的模具设计

（数控模具设计）挤压模建筑

铝合金型材(窗用)的模具设

计

建筑铝合金型材（窗用）的模具设计摘 要

为了适应不同的地区、不同系列、不同用途的门窗结构以及其他的建筑结构需要，

建筑铝合金型材的品种繁多，规格的范围也是十分的宽广。据不完全的统计，世界上已

经出现了上万种建筑型材。建筑铝合金型材一般采用挤压的方法得到，而挤压工模具对

于实现整个的挤压过程是有着十分重要意义的。

工具和模具结构的合理性是实现任何挤压的工艺过程的基础。因为工模具结构是传

递挤压力以及使金属产生挤压变形的关键部件；模具是使产品成形，并保证正确的形状、

尺寸以及精度的基本部分；同时模具是保证挤压产品的内外表面质量中最重要因素之一；

并且在一定程度上，模具可以控制产品的力学性能和内部组织。因此，合理的挤压模具

设计可以说是实现挤压生产中高产、低耗、优质的最重要保证之一。

本文论述了铝合金挤压模具设计的现状与发展趋势，介绍了挤压模具设计的步骤和

关键点。结合型材的特点设计了模具的分流孔、分流桥、模芯、焊合室、模孔、工作带

和空刀的结构与尺寸。

关键词：建筑铝合金型材；挤压模具设计；平面分流模

Design of extrusion die for aluminum alloy section for

windows of buildingsAbstract

In order to adapt to different regions, different series and different

uses of doors ,windows and other architectural structures’ needs,

architectural aluminum profiles and the range of specifications is very

wide. According to incomplete statistics, the world has been out of the

tens of thousands kind of building profiles. Architectural aluminum

profiles generally are used by extrusion, and extrusion tooling is great

significance to the whole of extrusion process.

The consistency of tool and die structure is the basis of achieving any

foundation extrusion process. Because the die structure is the key

components of passing extrusion pressure and producing metal extrusion;

Mold is the essential part of ensuring product’s correct shape, size and

precision; The same time, mold is the most important factors to ensure the

surface quality of the inner and outer of extrusion product ; The mold can

control the mechanical properties and internal organization. Therefore,

reasonable extrusion die design is one of the most important assurance of

achieving extrusion production high yield, low cost and high quality.

This paper discusses the situation and development trend of aluminum

extrusion die design, and introduces the steps and key points of extrusion

die design. The paper design the structure and size of mold sections’

diversion hole, split bridge, mold cores, welding chamber, the die hole,

working part and empty knife.

Key Words: Architectural aluminum profile；Design of extrusion die；Planar porthole die

目 录摘 要...................................................................IAbstract.................................................................II第一章 绪论...............................................................11.1 概述...............................................................11.2 模具在铝合金挤压生产中的重要作用与特殊地位.........................11.3 国内外铝合金挤压模具技术的现状与发展趋势...........................21.3.1铝合金挤压模具设计的现状......................................2 1.3.2铝合金挤压模具技术的发展与趋势................................3 1.3.3国内外模具设计水平比较........................................71.4 建筑型材的模具设计.................................................71.4.1铝合金民用建筑型材的特点......................................81.4.2民用建筑型材模具设计特点......................................81.4.3 建筑铝合金型材模具设计重点与难点.............................8第二章 铝型材挤压工艺....................................................102.1 铝型材模具的设计原则..............................................102.1.1挤压模具设计时应考虑的因素...................................102.1.2模具设计的原则与步骤.........................................102.1.3模具设计的技术条件及基本要求.................................122.2 确定采用平面分流模的原则..........................................122.3 模具材料的选择....................................................132.3.1产品性能分析.................................................132.3.2挤压模具的工作条件...........................................142.3.3模具材料的合理选择...........................................15第三章 铝型材挤压模具设计................................................173.1 制品的分析........................................................173.1.1 制品尺寸分析................................................173.1.2 制品结构分析................................................173.2 挤压设备的选择....................................................183.2.1 挤压系数....................................................183.2.2 填充系数....................................................193.2.3 挤压力的计算................................................193.3 型材模具结构......................................................193.3.1 模具外径....................................................203.3.2 模具厚度....................................................203.4 上模设计..........................................................203.4.1分流孔的设计.................................................203.4.2 分流桥的设计................................................223.4.3 模芯的设计..................................................22

3.5 下模设计..........................................................233.5.1焊合室的设计.................................................233.5.2模孔尺寸的设计...............................................253.5.3模孔工作带的长度确定.........................................283.5.4模孔空刀结构设计.............................................293.6 定位的设计........................................................293.6.1凸台的设计...................................................293.6.2定位销的选择.................................................303.6.3螺钉的选择...................................................303.7 强度校核..........................................................303.7.1分流桥弯曲应力校核...........................................303.7.2分流孔道抗剪应力校核.........................................31第四章 零件图和装配图....................................................324.1上模...........................................................324.2下模...........................................................334.3装配图.........................................................34结 论...................................................................35致 谢...................................................................36参考文献.................................................................37