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1、有全套图纸，需要的联系 QQ3154375291摘要摘要本毕业设计为灶盘冲压工艺及模具设计。灶盘是中型件，大批量生产。结构为大致对称试，材料为 TA3 钢，为合金钢，具有较好的可冲压性能，厚度为 1mm，成型工艺包括落料冲孔、拉深、翻边翻孔。由于该件为 U 形弯曲工件，回弹较小，经计算满足冲压工艺要求。次件精度要求不高，不需较高的公差等级，属于一般冲裁弯曲精度。模具为普通冲裁弯曲模具就可达到生产要求。通过对工件的结构、材料、厚度等因素的分析，和对模具设计进行了具体论证，确定了该工件需要三道冲压工序完成。所需模具分别为落料拉深复合模、冲孔模、翻边翻孔复合模具。第一套模具为落料拉深模具，第二套为冲
2、孔模具，第三套为翻边翻孔复合模具，经过计算先进行落料拉深再冲孔修边最后翻边翻孔不会影响孔的尺寸精度及位置精度，并且能够满足经济要求。关键词关键词：位置精度，尺寸精度，性能有全套图纸，需要的联系 QQ3154375292AbstractAbstractDesigned to focus the graduation plate stamping process and die design. Medium-sized pieces, high-volume production. More or less symmetrical structure of test materials for t
3、he TA3 steel, for alloy steel, has a good punch to the performance of a thickness of 1mm, molding process, including blanking punching, deep drawing, flanging over-hole. As the pieces of work for the U-bending, springback small stamping process is calculated to meet the requirements. Times items do
4、not ask for much accuracy without a higher level of tolerance, of a general bending precision blanking. Blanking die as an ordinary bending dies to achieve production requirements. Workpiece through the structure, material, thickness and other factors analysis and design of the mold concrete proof o
5、f the workpiece to determine the need for the completion of three stamping process. Were required blanking die drawing compound die, punching die, die flanging over pore complex. The first set of blanking dies for deep drawing dies, punching dies for the second and third sets of holes for the flange
6、 over mold compound, after calculating the first drawing and then blanking punching edge over the final hole flanging not affect the accuracy of hole size and location accuracy, and able to meet the economic requirements.KeyKey wordswords：Positional accuracy, size, precision, performance有全套图纸，需要的联系
7、QQ3154375293目录目录1.概述 .411 我国模具技术的现状.41.1.1 冲模.51.1.2 塑料模.61.1.3 压铸模.61.1.4 模具 CAD/CAM 技术.61.1.5 快速经济制模技术.71.1.6 模具标准件.81.1.7 模具材料与热处理.81.1.8 模具制造的相关技术.91.2 国外模具企业带来的启示.91.3 欧美模具企业的管理经验值得借鉴.101.4 冷冲压.111.4.1 冲压加工的含义.111.4.2 冲压工艺的分类.111.4.3 冲压工艺与其它加工方法相比的特点.112灶盘的工艺分析.122.1 冲压件的工艺分析.122.2 确定冲裁工艺方案.132.3 冲裁工艺的计算.162.3.1 排样设计.162.3.2 毛坯尺寸的确定.172.4 冲裁模工艺计算.182.4.1 冲裁力的计算.182.4.2 拉深工艺.192.4.3 确定模具的压力中心.192.5 冲压设备的选择.202.6 凸凹模刃口尺寸的确定.212.6.1 凸、凹模刃口尺寸的计算原则.212.6.2 凸、凹模刃口尺寸的计算方法.212.7 设计选用模具
