毕业论文移动版

摘要：对于一些大批量零件的生产，级进模是一个很好的选择。它的优点有生产效率高，生产周期短，生产所需要的人员少。同时随着CAD/CAE/CAM技术在模具中的运用，推使得模具设计更加准确、高效。本文基于NX软件平台对一汽车连接件进行级进模设计，诠释了此类软件对于目前模具设计行业上有着巨大的帮助与提升。此次设计中确定了产品的工艺性能，并据此设计各类冲压过程中的装置。该模具通过导正钉定位，进行切料、落料、折弯、冲孔、成型、零件分离等步骤。最后根据三维装配图完成加工二维图。介绍了多工位级进模的排样和总体结构设计，并对冲压过程中的的设计计算进行了论述。通过本次实践，充分证明了该模具具有结构好，生产效率高等优点，及CAD/CAE/CAM技术对设计模具上的巨大帮助。对同类型零件的多工位级进模具有详细的参考价值。70171

毕业论文关键词：级进模；汽车连接件；模具设计；排样设计；

Design of Progressive Die for Automobile Connection

Abstract:For some high-volume parts of the production, progressive die is a good choice. Its advantages are high production efficiency, short production cycle, the production of fewer people required. At the same time with the CAD / CAE / CAM technology in the use of mold, pushing the mold design more accurate and efficient. This article based on the NX software platform for a car connector progressive die design, interpretation of such software for the current mold design industry has a huge help and enhance. The design of the product to determine the process performance, and accordingly design various types of stamping process devices. The mold through the lead nail positioning, cutting materials, blanking, bending, punching, forming, parts separation and other steps. Finally, according to the three-dimensional assembly diagram to complete processing two-dimensional map. The layout and overall structure design of the multi - station progressive die are introduced, and the design calculation in the process of stamping is discussed. Through this practice, fully proved that the mold has a good structure, high production efficiency, and CAD / CAE / CAM technology on the design of a great help on the mold. The same type of parts of the multi-station progressive die with a detailed reference value.

Keywords:Progressive Die Wizard；Automotive Connector；Mold Design；Layout Design；

目  录

1绪论1

1.1  课题来源1

1.2  多工位级进模及其特点1

1.3  多工位级进模国内现状及发展趋势2

1.4  毕业设计的目的2

1.5  毕业设计所涉及的软件简介3

2产品结构及工艺性分析4

2.1  零件的结构分析4

2.2  零件的工艺分析5

2.3  材料成型性能分析5

2.4  零件CAE分析6

2.5  工艺方案确认6

2.6  排样方案选择7

2.7  冲压工序方案拟定8

3主要参数的计算9

3.1  毛胚展开尺寸9

3.2  排样方案初步确定9

3.3  步距、料宽确定10

3.4  冲裁间隙确定11

3.5  材料利用率确定11

3.6  排样图最终确定12

4冲压工艺力计算13

4.1  冲裁力计算13

4.2  卸料力计算14

4.3  弯曲力计算15

4.4  冲压设备选择15

5模具结构设计16

5.1  凸凹模设计16

5.2.1  冲裁凸凹模设计16

5.2.2  成型凸凹模设计17

5.2.3  弯曲凸凹模设计18

5.2  导正结构设计18

5.3  卸料装置设计20

5.4  导柱及导套设计20