摘要：冲压成形是模具中最重要的加工方法之一。本次设计是在对零件进行分析的基础上对其进行设计和加工制造的全过程。本次设计中包括对照相机零件的结构，尺寸，精度和材料性能进行分析，制定出有效的成形方案，然后决定采用多工位级进模进行加工。接着进行工艺计算，制定符合要求的工序排样图。从而确定了该模具包括冲孔，弯曲，压印，切边，落料在内的10个工位。最后进行模具总体结构设计、成形零部件设计和冲压设备的选择，绘制了模具总装图及其主要零件图。

在本次设计中采用了导料板、侧刃、导正销和浮顶销相结合的送料定距方式，采用了弹压卸料板、弹簧和卸料螺钉相结合的卸料机构。文中还详细介绍了该模具凸模、凹模、出料装置、模架、模柄等的设计，简述了模具开闭模的过程以及模具装配图。

关键词：多工位级进模；冲裁；弯曲；模具设计

Abstract：Stamping forming is one of the most important processing methods in die. This design is a series of design and manufacturing process for mass production on the basis of processing workpiece. Including the camera parts of the structure, size, accuracy and material performance analysis to develop effective forming program, and then decided to use multi station progressive die processing. Then the calculation process, formulated to meet the requirements of the process layout. The 10 positions of the die, including punching, bending, coining, trimming and blanking, are determined. Finally, the overall structure of the mold design, forming parts design and stamping equipment selection, drawing the assembly drawing and the main parts of the drawing.

In this design using the guide plate, side blade, guide pin and floating pin combination feeding distance, the pressure unloading mechanism, stripper plate spring and unloading screw combination. The design of the die, punch, die, material, die frame and die handle is introduced in detail. The process of die opening and closing die and the assembly drawing of die are described briefly.

Keywords： multi-position progressive die ; blanking ; bend; mold design

目 录

第一章 绪论 1

1.1选题的目的和意义 1

1.2多工位级进模的简介 2

1.3冲压模具的发展现状 3

1.4本文主要内容 4

第二章 工艺设计 5

2.1零件图 5

2.2冲裁的工艺性分析 7

2.3弯曲的工艺性分析 7

2.4工艺方案的选择确定 7

第三章 排样设计 8

3.1零件毛坯尺寸的计算 8

3.2排样方式的选择和搭边确定 8

3.3进距和进距精度 9

3.4利用率的计算 9

3.5排样图的设计 10

第四章 工艺计算 12

4.1冲压工艺力的计算 12

4.1.1冲裁力的计算 12

4.1.2弯曲力的计算 15

4.1.3卸料力的计算