端盖落料拉深冲孔切边复合模设计

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1、端盖落料拉深冲孔切边复合模设计序言随着中国工业不断地发展，模具行业也显得越来越重要。冲压模具是一种少废料、高效率、高精度的生产方式，在工业生产中得到了广泛地应用并占有重要的地位。随着工业产品质量的不断提高，冲压产品正呈现多品种、少批量、复杂、大型、精密、更新换代速度快等变化特点，冲压模具正向高效、精密、长寿命、大型化方向发展。高效，就是模具向级进模具、复合模具等方向发展，这样不但节约了模具的制造成本，还大大的提高了模具的生产效率；现在发达国家所设计制造出来的模具精度可以达到0.2。为适应市场变化，随着计算机技术和制造技术

2、的迅速发展，冲压模具设计与制造技术正由手工设计、依靠人工经验和常规机械加工技术向以计算机辅助设计（CAD）、数控切削加工、数控电加工为核心的计算机辅助设计与制造（CAD/CAM）技术转变。目前我国模具工业与发达国家相比还相当落后，主要原因是我国在模具标准化、模具制造工艺及设备等方面与工业发达国家相比差距很大。本专业以培养学生从事模具设计与制造工作能力的核心，将模具成型加工原理、设备、工艺、模具设计与制造有机结合在一起，实现理论与实际相结合，突出实用性、综合性、先进性。正确掌握并运用冲压工艺参数和模具工作部分的几何形状和尺

3、寸的综合应用，以提高学生的模具设计与制造能力的综合应用。本文针对两底孔圆筒的冲裁工艺性和拉深工艺性，分析比较了成形过程的三种不同冲压工艺（单工序、复合工序和连续工序），确定用一幅复合模完成落料、拉深、冲孔和切边的工序过程。介绍了两底孔圆筒冷冲压成形过程，经过对工件的批量生产、零件质量、零件结构以及使用要求的分析、研究，按照不降低使用性能为前提，将其确定为冲压件，用冲压方法完成零件的加工，且简要分析了坯料形状、尺寸，排样、裁板方案，拉深次数，冲压工序性质、数目和顺序的确定。进行了工艺力、压力中心、模具工作部分尺寸及公差的计

4、算，并设计出模具。还具体分析了模具的主要零部件（如凸凹模、卸料装置、拉深凸模、垫板、凸模固定板等）的设计与制造，冲压设备的选用，凸凹模间隙调整和编制一个重要零件的加工工艺过程。列出了模具所需零件的详细清单，并给出了合理的装配图。通过充分利用现代模具制造技术对传统机械零件进行结构改进、优化设计、优化工艺方法能大幅度提高生产效率，这种方法对类似产品具有一定的借鉴作用。I目录1设计任务及零件的工艺性分析··························································11.1设

5、计任务··············································································································11.2零件的工艺性分析······························································································12确定工艺方案····································

6、······················································32.1计算毛坯尺寸······································································································32.2确定是否要压边圈·····················································································

7、········42.3计算拉深次数·····································································································42.4确定工艺方案·····································································································43主要工艺参数的计算······················

8、························································53.1确定排样、裁板方案·························································································5