自行车前叉肩压形模设计

论文编号:JX684  论文字数:8050.页数:24 附任务书,开题报告,外文翻译,答辩PPT,CAD图纸

 【摘要】冲压制品已在工业、农业、国防和日常生活中的方面得到广泛应用。特别是在机械业中特别突出。机械产品的外壳大部分是冲压制品，产品性能的提高要求高性能的冲压模具。
 冲压制品的成型方法很多，其主要用于是冲孔、落料、弯曲、拉伸等。而冲压模约占成型总数的60%以上。如利用电气控制，可实现半自动化或自动化作业。冷冲压模主要用于金属制品的成型，它是冲压制品生产中十分重要的工艺装置。冲压模的基本组成是：上下模座、下模垫板、下模固定板、凸凹模镶块、抬料钉、导料板、卸料板、导柱导套、卸料板弹钉、卸料板等。
 目前，采用高速切削生产模具已经成为模具制造的大趋势，在国外一些模具生产厂家，高速机床大面积取代电火花机床，高速切削大大提高了模具生产效率。机床企业瞄准模具生产企业，有的加工中心生产厂机床的60%以上卖给模具加工企业。高速切削逐渐取代电火花精加工模具在国外的模具制造企业已经普遍采用，高速切削生产模具已经成为模具制造的大趋势，大大提高了模具生产效率和质量。采用高速切削替代电火花生产模具，可以明显提高效率、提高模具精度、使用寿命。
 【关键词】模具；冷冲模；凸凹模；板料
中文摘要
 
 

Bicycle front fork shoulder Pressing Die Design

 [Abstract]Stamping products has been extensively applied in the industry, agriculture, national defense and in the daily lives of area, especially in the machinery industry. Mechanical products is the most pressing housing products, and the improvement of molds ,stamping,process and product design.
 There are many ways of molding products of stamping. Piercing is mainly used for blanking, bending, stretching, etc. And Stamping molds almost  form more than 60 percent of the total number. For example ,Electrical Control can be realized as semi-automatic or automatic operation. Cold-metal stamping die mainly used for the molding products, and it is very important in the production of stamping technology devices. The basic component of stamping molds is block model from top to bottom, mould plate, fixed-plate of mould plate, die inserts, raising nails, I. plate, plate unloading I. Introduction sets column, unloading bombs nail plate, plate Discharge and so on.
 At present, used the high-speed cutting production mold already to become the major tendency which the mold made, produced the factory in the overseas some molds, the high speed engine bed area substitution electrical discharge machine, the high-speed cutting enhanced the mold production efficiency greatly. The engine bed enterprise aims at the mold production enterprise, above some processing center plant engine beds 60% sold to the mold processing enterprise. The high-speed cutting substituted for the electric spark precision work mold already generally to use gradually in the overseas mold manufacture enterprise, the high-speed cutting production mold already became the major tendency which the mold made greatly. Uses the high-speed cutting substitution electric spark production mold, may obviously enhance the efficiency, increase the mold precision, the service life is long.
 [Key words]Upper die；Under the model；Progressive Die；Sheet
 

目  录
 

前言 1
1 选题背景 2
1.1题目来源 2
1.2研究目的和意义 2
1.3 国内外模具发展趋势 2
2 模具设计及方案论证 5
2.1 分析零件的工艺性 5
2.2 确定工艺方案及模具型式 8
2.3模具设计工艺计算 10
2.4 模具主要零件的结构设计 11
3 选定冲压设备 16
4 毕业设计总结 19
参考文献 20
致  谢 21
附录 22

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