支撑板冷冲压工艺及级进模设计论文

优秀通过答辩本科毕业设计（论文）

摘 要

冲压工艺分析主要考虑产品的冲压成形工艺，最主要的是包括经济和技术两方面内容。在经济方面，主要根据冲压件的生产批量，分析产品成本，阐明采用冲压生产可以取得的经济效益；在技术方面，根据产品图纸，主要分析零件的结构特点、尺寸大小、精度要求和材料性能等因素是否符合冲压工艺的要求。因此工艺分析，主要是讨论在不影响零件使用的前提下，能否使零件以最简单最经济的方法冲压出来。

由于产品没有特殊要求，故模具结构采用冲孔、落料的工序设计，并采用正装方式设计模具结构，即凹模装在下模部分。由于料不厚，冲压速度较快，卸料采用刚性卸料结构。废料和产品均采用在凹模（下模）向下推出。因本冲裁件生产批量大故采用条料。。

在冲压零件中，材料费用占60%以上，排样的目的就在于合理利用原材料，因此材料的利用率是决定产品成本的重要因素，必须认真计算，确保排样相对合理，以达到较好的材料利用率。

冲压是高效的生产方式，采用复合模，尤其是多工位的级进模，可在一台压力机上完

成多道冲压工序，实现由带料开卷、矫平、冲裁到成形、精整的全自动生产。生产效率高，

关键词：冲压工艺；排样；模具结构；级进模

Abstract

Stamping process analysis mainly consider product stamping forming process, the main is including two aspects of economic and technical content. On the economic front, mainly according to the stamping parts of the production batch, analyzing the product cost, clarify the stamping production can achieve economic benefit; In terms of technology, according to the product drawings, analysis the main parts of structure, size, accuracy requirements and materials performance factors such as whether accord with the requirement of stamping process. Process analysis, therefore, is mainly discussed in does not affect the parts use premise, can make the easiest and most economical way to stamping out.

Because the product has no special requirements, so the mold structure with punching and blanking process design, and USES the way of dress design of mould structure, namely the female die is installed in the mould parts. Because the material is not thick, stamping speed faster, discharging discharging using rigid structures. Waste materials and products are used in the die (mould) down. Production batch die blanking pieces for this article using the material.

In stamping parts, material costs accounted for more than 60%, the purpose of the layout is reasonable use of raw materials, so the utilization rate of materials is an important factor to decide the product cost, must be calculated carefully, to ensure that the line sheet for reasonable, in order to achieve a better material utilization.

Stamping is efficient production mode, adopting the composite die, especially the

multi-station progressive die, stamping can be completed in a pressure on the multichannel working procedure, to achieve the pick-up uncoiling, leveling, cutting to the forming and finishing automatic production. High production efficiency, good working conditions production cost is low, general can produce hundreds of pieces per minute.

Key words:Stamping process;Layout ;The mould structure ; Progressive die