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1、 毕业设计用纸中文摘要中文摘要目前，我国经济仍处于高速发展阶段，国际上经济全球化发展趋势日趋明显，这为我国模具工业高速发展提供了良好的条件和机遇。对冲压生产而言，单工位模具结构单一，生产效率低，而且钣金零件不能过于复杂，否则就需要多副单工位模具才能实现。如果采用级进模进行冲压生产，就可以改变这些缺点。多工位级进模是在普通级进模的基础上发展起来的一种高精度、高效率、长寿命的模具，是技术密集型模具的重要代表，是冲模发展方向之一。这种模具除进行冲孔落料工作外，还可根据零件结构的特点和成形性质，完成压筋、冲窝、弯曲、拉深等成形工序，甚至还可以在模具中完成装配工序。冲压时，将带料或条料由模具入口端送进后
2、，在严格控制步距精度的条件下，按照成形工艺安排的顺序，通过各工位的连续冲压，在最后工位经冲裁或切断后，便可冲制出符合产品要求的冲压件。为保证多工位级进模的正常工作，模具必须具有高精度的导向和准确的定距系统，配备有自动送料、自动出件、安全检测等装置级进模的特点是生产效率高，生产周期短，占用的操作人员少，非常适合大批量生产。级进模设计的要点之一就是毛坯排样，排样方案对材料的利用率、冲压加工的工艺性以及模具的结构和寿命等有着显著的影响。本次的毕业设计课题来源于工厂的工作实践, 模具结构也较为常见，对于我们初学者是一种锻炼。在设计该模具的同时总结了以往模具设计的一般方法、步骤，模具设计中常用的公式、数
3、据、模具结构及零部件。把以前学过的基础课程融汇到这次毕业设计中来。在这次毕业设计中同时还用到了 CAD、UG 等软件。由于实际经验和理论技术有限，设计的错误和不足之处希望各位老师批评指正。关键词：关键词：级进模、排样、工艺分析、级进模、排样、工艺分析、模具制造毕业设计用纸ABSTRACTAt present, Chinas economy is still in stage of rapid development, the international trend of economic globalization is increasingly clear that rapid develo
4、pment of Chinas mold industry to provide good conditions and opportunities.For stamping, the single-station single die structure, low productivity, and sheet metal parts can not be too complicated, or need more single-station dies vice can be achieved. If the use of progressive die stamping producti
5、on, you can change these shortcomings. Multi-position progressive die progressive die in general developed on the basis of a high precision, high efficiency, long life of the mold, the mold is an important representative of technology-intensive, is one of the development die. The punching die blanki
6、ng addition to the work, but also the characteristics of part structure based on the nature and shape, complete beading, punching hole, bending, deep drawing forming process can even be completed in the mold assembly process. Stamping, it will be with the material or strip materials sent from the mo
7、ld after the entrance, step in the strictly controlled conditions, accuracy, forming process in accordance with the order arranged by the continuous pressing of the station, at the last station, or by punching cut off, the system can be washed to meet the requirements of stamping products. To ensure
8、 multi-position progressive die work, die must have a high-precision-oriented and accurate fixed pitch system, equipped with automatic feeding, automatic parts, safety testing and other devices is characterized by progressive die for high production efficiency, production short cycle, the operator t
9、akes less well suited for mass production. Progressive Die Design is one of the main points of the rough layout, layout program on the utilization of materials, stamping and mold processing technology of the structure and longevity have a significant impact.This time, the graduation project from the
10、 practice factory, the mold structure is also more common, is an exercise for us beginners. In the design of the mold die design were summarized in the past the general methods and procedures commonly used in mold design formula, data, die structure and components. The basis of previously learned to
11、 integrate the graduate design programs in the past. In this graduation design is also used in the CAD, UG and other software.Because the limited practical experience and theoretical techniques, design errors and deficiencies hope that teachers criticized the correction.Keywords: Progressive die, la
12、yout, process analysis, mold manufacturing毕业设计用纸目目 录录引言1 第一章 冲压件及其工艺分 析 41.1 冲压件的工艺分析 51.2 工件的精度和断面粗糙 度 51.3 冲压件工艺方案的确定5第二章 排样设计及工艺参数的计算62.1 排样方式的确定62.2 材料利用率的计 算72.3 提高材料利用率的方 法82.4 冲压力的计 算82.5 压力中心的确定及相关计 算92.6 模具凸凹模的刃口尺寸计 算 10第三章 工作零件结构设计及固 定装 订 线毕业设计用纸113.1 凸凹模的结构设计113.2 模具总体设计 133.3 凹凸模的线切割加工工艺 153.4 模具的装配 17 3.4.1 模具的装配工 艺17 3.4.2 模具总装 图17 3.5 冲压设备选 定18 总结 20致谢 21 参考文 献22装 订 线毕业设计用纸第一章第一章 冲压件及其工艺分析冲压件及其工艺分析工件名称：工件名称：U 形盖落料形盖落料工件简图：如图所示工件简图：如图所示生产批量：大批量生产批量：大批量材料：不锈钢材料：不锈钢 1cr18Ni9Ti材料厚度：材料厚度：1mm1mm
