弯曲模及复合模的设计_毕业设计论文

弯曲模及复合模的设计

中文摘要

冲压模具在实际工业生产中应用广泛。随着当今科技的发展，工业生产中模具的使用已经越来越引起人们的重视，而被大量应用到生产中来。冲压模具的自动送料技术也投入到了实际的生产中，冲压模具可以大大的提高劳动生产效率，减轻工人负担，具有重要的技术进步意义和经济价值。

所谓复合模，就是在压力机的一次行程下,可以同时完成多道工序的冲裁模。可获得更长的模具寿命，更好的金属丝圆度，并且高度可预测的模具磨损性能。复合模是一种具有表面光洁度，最小摩擦力的耐磨人工合成材料。模具寿命长，金属丝表面光洁度较好。它的优点是模具寿命长，故障时间短，效率高。可获得尺寸范围广。优秀的防裂纹和破损的性能。平滑，可预测的模具磨损性能。主要应用在非铁的金属丝，特别是在尺寸较大，磨损较大而表面光洁度无关紧要时。

所谓弯曲，就是将金属材料沿弯曲线弯成一定的角度和形状的工艺方法。弯曲模具的结构设计是在弯曲工序确定后的基础上进行的，设计时应考虑弯曲件的形状、精度要求、材料性能以及生产批量等因素。

本文设计的是铰链与芯夹的冷冲压模具设计，经过对这个题目的分析与研究，最终确定了以弯曲成形模一次弯曲成形和四工位复合模，此课题主要详细介绍了在铰链及芯夹冷冲压模具设计过程中，对各个工序的设计构想及具体实施方案，并且主要讲述模具设计工艺方案及工艺过程。我设计的模具的特点及原则是：首先得保证产品质量节约原材料，降低劳动强度，降低成本，提高劳动生产率，最后达到产品的要求。

关键词：冲压模具复合模弯曲

Abstract

In actual stamping widely used in industrial production. With the development of science and technology, industrial production in the use of mould has attracted people's attention, and are applied to production. The stamping technology and automatic feeding into the actual production, stamping mould can greatly improve labor productivity, reduce the burden of technological progress, it has important significance and economic value.

So-called composite modulus, is in the press trip, may also completed a number of processes to punch die.It can obtain more long life, better wire roundness, and highly predictable mould abrasion performance. Composite modulus is one kind that has the surface finish, minimum friction resistance synthetic materials. Die life long, the metal surface finish. Its advantages are long life, high efficiency, short time.It can obtain size range,excellent performance of cracks and prevent damage. Smooth, predictable mould abrasion performance. Mainly used in nonferrous metal wire, especially in large size is larger, wear and surface finish irrelevant.

So-called bending, metal material is the curved line will turn into a certain Angle and the shape of the technological process. The structure design of bending die bending process is determined based on the design of curved, should be considered when thinking about the shape, accuracy requirement, material properties such as

production batch.

This is the design of the hinge and core stamping mould design, through the analysis of this topic, and finally determined to study the bending modulus and four stations in once composite modulus,.This topic is introduced in detail.In the hinge and the core clip hinge cold stamping mould design process for all processes, it has designed the design idea and the concrete implementation plan, and mainly mold design program and process.The characteristics of the principle I designed the mould is: the first to ensure product quality, reduce the labor intensity of raw material saving, reduce cost, improve labor productivity, and finally achieve product requirements.

Key words: stamping，mould，composite modulus，bend