用导正销定距的冲孔落料级进模

摘 要

在传统的工业生产中，工人生产的劳动强度大、劳动量大，严重影响生产效率的提高。随着当今科技的发展，工业生产中冲压模具的使用已经越来越引起人们的重视，而被大量应用到工业生产中来。冲压模具的自动送料技术也投入到实际的生产中，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。

本文介绍了级进模冷冲压成形过程，并且简要分析了坯料形状、尺寸，排样、裁板方案，冲压工序性质、数目和顺序的确定。进行了工艺力、压力中心、模具工作部分尺寸及公差的计算，并设计出模具。还具体分析了模具的主要零部件（如凸凹模、卸料装置、垫板、凸模固定板等）的设计与制造，冲压设备的选用，凸凹模间隙调整和编制一个重要零件的加工工艺过程。列出了模具所需零件的详细清单，并给出了合理的装配图。通过充分利用现代模具制造技术对传统机械零件进行结构改进、优化设计、优化工艺方法能大幅度提高生产效率，这种方法对类似产品具有一定的借鉴作用。

关键词：级进模具；冲压模具；模具设计；工艺

I

Abstract

In the traditional industrial production, the worker works very hard and there are too much work for them, so the efficiency is low. With the development of the science and technology nowadays, the use of punching die in the industrial production gain more attention, and be used in the industrial production more and more. Self-acting feed technology of punching die is also used in production, punching die could increase the efficiency of production and could alleviate the work burden，so it has significant meaning in technologic progress and economic value.

This article describes the anti-theft lock picks cold stamping process ，and a brief analysis of the blank shape, size, layout, the Conference Board, stamping processes in nature, number and sequence determination. For the process, the center of pressure, the die size and the tolerance of the calculation, design mold. Also analyzes the mold of the main components (such as punch and die and dump devices, slates, Punch plate, etc.) design and manufacturing, stamping equipment selection, punch-gap adjustment and establishment of a vital parts machining process. Die requirements set out a detailed list of parts, and gives a reasonable assembly. By fully utilizing modern manufacturing technology to mold traditional mechanical parts for structural improvements, design optimization, Process optimization methods can greatly enhance production efficiency, the method of similar products have some reference.

Key words: anti-theft lock picks；punching die；Mold design; process

II

目 录

1 综论 ....................................................................................................................... 1

1.1 冲压的定义和特点................................................ 1 1.2 冲压基本工序.................................................... 2 1.3 冲压模具........................................................ 3 1.3.1冲压模具的定义 ................................................ 3 1.3.2冲压模具的分类 ................................................ 4 1.4 我国冲压技术的现状.............................................. 4 1.5 冲压技术的发展趋势.............................................. 4 1.6 冲压模具的设计步骤.............................................. 6 1.6.1取得必要的资料 ................................................ 6 1.6.2确定工艺方案及模具结构形式 .................................... 6 1.6.3进行必要的工艺计算 ............................................ 6 1.6.4模具的总体设计 ................................................ 7 1.6.5模具主要零部件的结构设计 ...................................... 7 1.6.7选定冲压设备 .................................................. 7 1.6.8绘制模具总图 .................................................. 7 1.6.9绘制各非零件的零件图 .......................................... 7 1.7.0填写模具记录卡和编写冲压工艺文件 .............................. 8

2冲压工艺设计 ........................................................................................................ 8

2.1 冲压件的工艺性分析.............................................. 8 2.1.1结构工艺性 .................................................... 8 2.1.2尺寸精度与粗糙度 .............................................. 9 2.1.3冲裁件的材料 .................................................. 9 2.2 工艺方案的确定.................................................. 9

3 冲压模具总体结构设计 ................................................................................ 10

3.1 模具类型....................................................... 10 3.2 操作与定位方式................................................. 10 3.3 卸料与出件方式................................................. 10 3.4 模架类型及精度................................................. 11

4 模具设计工艺计算 ......................................................................................... 12

4.1 排样设计与计算................................................. 12 4.2 冲压力的计算................................................... 12 4.3 压力中心的确定................................................. 13 4.4 冲裁模间隙的确定............................................... 13 4.5 刃口尺寸的计算................................................. 14 4.5.1刃口尺寸计算的基本原则 ....................................... 14

5 模具零件的设计 .............................................................................................. 16

5．1 工艺零件的结构设计............................................ 16

III

5.1.1冲孔凸模的设计 ............................................... 16 5.1.2卸料板的设计 ................................................. 16 5.1.3导料板的设计 ................................................. 18 5.1.4导正销 ....................................................... 18 5.2 辅助零件的结构设计..... …… 此处隐藏：4583字，全部文档内容请下载后查看。喜欢就下载吧 ……