冲压弯曲件冲压模具设计论文

冲压弯曲件冲压模具设计

摘要

随着中国工业不断地发展，模具行业也显得越来越重要。本文针对支架弯曲件的冲裁工艺性和弯曲工艺性，分析比较了成形过程的三种不同冲压工艺（单工序、复合工序和连续工序），确定用一幅级进模完成落料、冲孔和一幅单工序模完成弯曲的工序过程。介绍了支架弯曲件冷冲压成形过程，经过对支架的批量生产、零件质量、零件结构以及使用要求的分析、研究，按照不降低使用性能为前提，将其确定为冲压件，用冲压方法完成零件的加工，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（如冲孔凸模、落料凸模、卸料装置、弯曲凸模、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：支架，模具设计，级进模，冲孔落料，弯曲

Stamping Bending Stamping Mold Design

ABSTRACT

With China's industrial developing constantly, mold industry is becoming more and more important. Based on the stent bending blanking process and bending process, Comparative analysis of the process of forming three different stamping process (single processes, complex processes and continuous processes) confirm completion of the blanking, punching and a single procedure completed the bending modulus processes. On the cover of the cold bending stents，right after the cover of the mass production, quality components, and the use of structural components of the analysis, research, in line with lower performance prerequisite to the identification of stampings, Stamping method used to complete the processing components, 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 mould, punch hole punch, unloader device, punch, plate, bending 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: stents，mold design，progressive die，punching blanking, bending

目录

前言 (1)

第1章对加工零件的工艺分析 (5)

1.1零件分析 (5)

1.1.1 冲压件的工艺分析 (5)

1.1.2 分析比较和确定工艺方案 (6)

1.1.3 弯曲件的工艺分析 (7)

第2章冲裁模 (8)

2.1 冲压模具的工艺分析与设计计算 (8)

2.2 工作力的计算 (10)

2.2.1 落料力 (10)

2.2.2 冲孔力 (11)

2.2.3 卸料力 (11)

2.2.4 推料力 (11)

2.2.5 冲侧刃缺口的力 ........................ 错误!未定义书签。

2.2.6 总冲压力 (12)

2.3 确定模具压力中心 (12)

2.4确定凸、凹模刃口尺寸 (15)

2.4.1 冲孔部分 (16)

2.4.2 落料部分 (17)

2.5 成型零部件的结构设计 (18)

2.5.1冲孔凸模结构设计 (18)

2.5.2冲孔凸模结构设计 (19)

2.5.3凹模结构设计 (19)

2.6 模具的整体设计 (20)

2.6.1选择模具结构形式 (20)

2.6.2操作方式 (20)

2.6.3模架类型 (21)

2.6.4定位方式的选择 (21)