This paper analyzes the technical characteristics of the spring hook such as configuration dimension precision and the capability of the raw materials .There are including the difficulties of this production in the molding ,studying out the technics of the progressive die ,making sure the layout project and the die general structure. The progressive die could complete thirteen processes that include punching, blanking, bending and so on .It has finished all needed technical count ,including the  knife-edge of the  mold, the  force  of  ench process , punch  technical force  of  the all process  and  the  stress center of  the mold .It summarizes the method of designing this mold .It introduces the design and manufacture of the punch, the die, the stripping device, the pushing device, and the blanking holders in details.  And it also expatiates the working process of the die, the coordination about each motion of figurations. Besides it has a section about equipment choosing and proofreading. 

Keywords  bend product    progressive-die   technical analysis  

die design
目录
前言 1
第一章工艺设计 3
1.1零件介绍 3
1.2零件工艺性分析 3
1.3工艺方案的确定 6
第二章排样设计 7
2.11 毛坯排样设计 7
2.2材料的利用率 7
第三章工艺计算 9
3.1冲压工艺力的计算 9
3.1.1冲裁力计算 9
3.1.2卸料、顶件力的计算 10
3.2压力中心计算 11
第四章模具总体概要设计 12
4.1模具概要设计 12
4.2模具零件结构形式确定 13
4.2.1定位机构 14
4.2.2 14
4.2.3 15
第五章模具详细设计 16
5.1工作零件 16
5.1.1冲裁凸、凹模 17
5.1.2凸模高度设计 18
5.2定位零件 19
5.2.1导向零件 19
5.2.2挡料零件 20
5.3出件零件 20
5.3.1卸料零件 20
5.3.2顶件零件 21
5.4导向零件 21
5.5其他零件 22
第六章设备选择 23
6.1设备吨位确定 23
6.2设备校核 23
第七章结论 24
致谢 25
参考文献 26