搭扣零件的冲压工艺与模具设计

搭扣零件的冲压工艺与模具设计,搭扣,零件,冲压,工艺,模具设计 Modern mold making I .The stamping die development history and status of technology In 1953, the Changchun First Automobile Works in China for the first time established a die shop, the car plant in 1958 began manufacturing automotive panel die. 60 years of the 20th century began producing fine blanking dies. Come a long road of development, China has formed about 300 billion (not including Hong Kong, Macao and Taiwan statistics.) Production capacity of various types of stamping dies. Formed, such as Ningbo and Zhejiang HUANGYAN region Die village; Guangdong Corporation and some large rapid rise of township enterprises, K el o n, M id e a, K on ka and other groups have established their own mold manufacturing center; joint ventures and wholly foreign-owned the mold companies now have thousands. With the pace with international standards continues to accelerate, increasing market competition, production and design of the mold has been growing recognition that product quality, cost, and new product development capacities. Mold manufacturing technology to measure a countrys manufacturing sector has become an important indicator of the level, and largely determine the survival space. At present, China stamping die, whether in quantity or in quality, technology and other capabilities have made significant progress, but with national needs and the world advanced level, the gap is still great. In the international competition situation, I had the mold industry has rapidly developed, many specialized research centers continue to die set up, mold steel of the structure and made significant achievements, but there is still a big gap. First, imports of high-tech mold most of the large precision molds, mold and exports most of the lower middle and low-tech die, so high-tech high-grade die stamping die market, the overall satisfaction rate is lower than satisfaction rate, which mold development has lagged behind the production of stamping parts, and low-technology market to meet the rate of middle and low die stamping die is higher than the overall market to meet the rate; second is due to the price of the mold is much lower than international market prices, has some competition force, so its prospects in the international market; third in recent years, Hong Kong-and Taiwan-owned, foreign-funded enterprises in China developed rapidly in a large number of these enterprises stamping dies produced for own use no precise statistics, it is not included in the figures being. II. Modern mold manufacturing technology development The development of modern technology should die mold products to meet the short delivery time, high precision, good quality, low price request for service. Urgent need to develop to meet this requirement as a number of (1) to comprehensively promote universal DBD / DBM / DBE technology Die DBD / DBM / DBE technology is the development direction of mold design and manufacturing. With the computer software development and progress, universal DBD / DBM / DBE technology, conditions are ripe, the businesses will increase DBD / DBM technical training and technical service efforts; further expand the scope of DBE technology. The development of computers and networks are making DBD / DBM / DBE technology trans-regional, cross-enterprise, campus-wide in the industry as possible to promote and achieve re-integration of technical resources to enable virtual manufacturing possible. (2) High-speed milling The development of foreign high-speed milling process in recent years, significantly improve the processing efficiency, and to get a high surface finish. In addition, the module can also be processed with high hardness, but also with low temperature rise, thermal deformation and so on. High-speed milling technology, automotive, home appliance manufacturing industry in the large cavity mold injected new vitality. It currently has more agile, intelligent, integrated direction. (3) die scanning and digitizing system High-speed scanner provides scanning system and mold from the model or in kind to the processing of the scanned model of the desired number of features required, greatly reducing the manufacturing cycle in the development of mold. Some quick scan system can be quickly installed in existing CNC milling machine and machining center, for fast data acquisition, automatic generation of a variety of CNC machining process, the DBD data in different formats, for mold manufacturing reverse engineering . (4) the degree of standardization to improve die Degree of standardization of the mold is increasing, estimates that the current use of standard mold coverage has reached about 30%. Developed countries is generally about 80%. (6) high-quality materials and advanced surface treatment technology Application of high quality steel and the corresponding surface treatment technology to improve the life of the mold it is very necessary. Mold heat treatment and surface treatment can fully mold steel material properties play a key part. Direction of development of mold heat treatment is the use of vacuum heat treatment. In addition to the mold surface should improve the development of advanced technologies such as laser surface treatment. (7) Mold Polishing Automation, intelligent mold surface quality of mold life, the appearance of quality parts and so have a greater impact of automation and intelligence of the grinding and polishing methods replace the existing manual in order to improve the quality of the mold surface is important trends. (8) die development of automatic processing system This is our long-term development goals mold industry. Automatic mold machine processing system should be more than the rational combination; with accompanying plate positioning fixture or positioning; a complete equipment, tool CNC database; a complete CNC flexible synchronization system; a quality monitoring and control system. Of course, as the user to choose the right equipment, if the selection properly, not only can not make money but make the machine work into the bitter situation. III. Modern mold manufacturing technology trends Die technology is mainly towards the future development trend of information technology, high-speed high-precision production and development. Therefore, the design technology, the development focus is to promote DBD / DBE / DBM technology, and continue to improve efficiency, especially in sheet metal forming process of the computer simulation analysis. Die DBD, DBE technology should be declared human, integration, intelligence and network direction, and improve the mold DBD, DBM system-specific level. To improve the DBD, DBE, DBM technology, establish a complete database and development of the mold expert systems and improve software usability is very important. From the processing technology, the development focused on high-speed processing and precision machining. At present, the development of highly processed high-speed milling, high speed polishing and high-speed electronic processing and rapid tooling technologies. At present, the development of precision machining parts precision mold and the surface roughness of less 1m Pa 0.1m variety of precision machining. , I V. the modern mold manufacturing 1.CAD/CAE/CAM computer-aided design, simulation, manufacturing integration CAD / CAE / CAM integration, integration technology is the most advanced modern mold making the most reasonable mode of production. Use of computer-aided design, support engineering and manufacturing systems, according to the respective mold parts designed to prepare the NC machining of parts from design to manufacturing process is an inevitable process, which is from CAD / CAE / CAM system carried out, The processing line cable input directly from the processing machine, can be used in the preparation of procedures of processing the system analog functions, will be part tool, tool holder, fixture, platform and tool speed, path, etc. are displayed, to check the program prepared correctness. In short the CAD / CAE / CAM system development and simulation of processing can not fully understand the problems identified, resulting in processing prior to prepare the complete set of processing change work, which for the efficient and accurate processing of the mold has a very important part . 2. Advanced equipment in the modern mold making role The inevitable trend of modern mold making, machining is possible to replace the manual process, especially now that CNC lathes, multi-axis machine tools, CNC mold engraving machine, EDM machine, CNC precision grinding machines, coordinate measuring machines, scanners and other modern equipment widely used in factories, but most of these devices are basically the application of the procedures used CAD / CAE / CAM system to produce, the operator of work procedures in accordance with the provisions of work piece clamping, with a cutting tool and operation of the machine will be able to automatically complete the processing tasks, and created the ideal mold parts or complete the processing operation for the next part. 3. Die materials and surface treatment technology Due to improper selection and use of materials, resulting in premature failure of the mold, which accounts for more than 45% die failure. Price structure throughout the mold, the materials, the proportion of small, generally 20% to 30%, therefore, the choice of high quality steel and application of surface treatment technology to improve the life of the mold it is very necessary. For tool steel, the ESR technique to be used, such as the use of powder metallurgy high speed steel powders manufactured. Variety of different specifications tool steel, refined products, products of, try to shorten the delivery time is also an important trend. Mold heat treatment of the main trends: the infiltration of a single element to the multi-element penetration, complex permeability (such as TD method) development; by the general spread of the CVD, PVD, PCVD, ion penetration, ion implantation and other direction; addition, the current laser enhanced glow plasma technology and electroplating (plating) and other anti-corrosion technology to strengthen more and more attention. V.reverse engineering Reverse engineering is the first of the parts (the processing of the product) to scan the CAD data generated in multiple formats, and then in the other CAD / CAE / CAM software in the modified design, the technology is the most popular modern mold manufacturing mold manufacturing technology. mold manufacturing company dedicated to development and production of the scanning system, it can be successfully applied to reverse engineering, mold manufacturing, it can not only improve the performance of CNC machine tools, expanding the function of CNC machine tools, CNC machine tools but also improve efficiency., Renscan200, Cyclone high-speed scanner has been Qingdao H a I e r, Jinan Q I n g q i, national mold center and other units started. V I .Summary and Outlook With the development and progress of computer software, CAD / CAE / CAM technology is getting more mature, and its application in the modern mold will become more widespread. Can be expected in the near future, mold manufacturing to separate from the machine manufacturing industry, and independent national economy to become an indispensable pillar industries, while also further promote the integration of the mold manufacturing technology, intelligence, beneficiary , efficient direction. 毕业设计任务书 毕业设计题目 搭扣零件的冲压工艺与模具设计 学生姓名 专业班级 学 号 指导教师 教 研 室 机械设计 起止时间 毕业设计的任务、目的与要求 毕业设计是整个教学过程中极为重要的环节。其目的是通过毕业设计提高学生综合运用所学知识分析与解决工程实际问题的能力，培养求是、创新的科学态度，养成严肃、认真、细致地从事技术工作的优良作风。 本毕业设计的任务是对给定零件搭扣（见附图）进行冲压工艺性分析，提出各种可能的冲压工艺方案，经过分析与论证确定适合于给定生产条件的最佳工艺方案。进行详细的工艺计算，选择冲压设备，编制出工艺文件。然后设计出指定的冲压模具。要求使用三维造型软件（Pro/E，UG，CATIA）进行模具的造型设计，优先使用三维造型软件进行工程图绘制，在整个设计中要注意设计理念，设计方法与手段的创新。 本毕业设计的具体要求如下： 1. 作好设计的前期准备，收集必要的原始资料，了解冲压工艺及模具技术发展新动态。要求查阅与本课题有关的资料10篇以上，其中外文资料不少于一篇，要求翻译英文文献一篇，英文字符在1.2万字以上。 2. 结合课题进行实习和调研，写出开题报告。主要内容：课题的目的、意义、国内外研究动态；课题的主要内容和创新之处，设计方案及实施计划。 3. 制定工艺规程，完成冲压工艺过程卡一份。 4. 绘制指定工序的冲压模具图纸1～2套（含完整的装配图、零件图，工作量不少于3A0），图纸应符合国家标准，符合工厂生产用图的要求。 5. 撰写毕业设计说明书，字数在1.5万字以上。中文摘要350字以内，外文摘要与中文摘要对应。全部设计文件及附件符合规范化要求，祥见本院毕业设计（论文）工作手册。 6. 生产条件：按中型企业。生产类型：大量 主要参考文献与资料： [1] [2] 中国机械工程学会. 中国模具设计大典[M]. 南昌：江西科学技术出版社，2003 [3] 许发樾. 模具设计与制造手册[M]. 北京：机械工业出版社，2000 [4] 《冲压模具手册》编写组. 冲模设计手册[M]. 北京：机械工业出版社，1999 [5] 冯柄尧等. 模具设计与制造简明手册[M]. 上海：上海科学技术出版社，1998 [6] 马正元等. 冲压工艺与模具设计[M]. 北京：机械工业出版社，2000 [7] 肖景容等. 冲压工艺学[M]. 北京：机械工业出版社，2000 [8] 李云程等. 模具制造工艺学[M]. 北京：机械工业出版社，2000 [9] 黄费哲等. 冷冲压工艺与模具设计指导[M]. 常德：湖南文理学院，2005 [10] 通过校园网维普中文期刊数据库检索模具设计方面的论文10篇以上。 毕业设计(论文)进度安排： 1. 毕业实习与毕业设计调研阶段：（2011.1.18～2.25） 2. 毕业设计开题报告阶段：（2010.11.15～12.15） 3. 毕业设计主要工作阶段：（2011.2.26～5.21） （1） 分析比较和确定工艺方案； （2） 工艺计算、选择设备和制定工艺规程； （3） 确定模具类型和结构型式，绘制方案设计图； (4) 绘制零件模具零件工组图； (5) 绘制模具装配图； (6) 完成设计说明书初稿； (7) 修改设计图纸及设计说明书； (8) 准备毕业设计答辩； 毕业设计答辩阶段：（2011.5.21～5.29） 题 申 报 与 审 查 指导教师（签名）： 年 月 日 教研室主任（签名）： 年 月 日 系教学主任（签名）： 年 月 日 II 机械工程学院2009年毕业设计资料＿4 本科生毕业设计开题报告书 题 目 搭扣零件的冲压工艺与模具设计 学生姓名 ＿ ＿ ＿＿＿ ＿＿ 学 号 ＿＿ 200715010327＿ ＿ 专业班级 ＿ ＿机自07103＿＿ ＿＿ 指导老师 ＿ ＿王鹏飞＿＿ ＿＿＿＿ 机　械　工　程　学　院 2010年 12月 10日 论文（设计）题目 搭扣的冲压工艺与模具设计 课题目的、意义及相关研究动态： 课题目的: 毕业设计是整个教学过程中极为重要的环节。其目的是通过毕业设计提高学生综合运用所学知识分析与解决工程实际问题的能力，培养求是、创新的科学态度，养成严肃、认真、细致地从事技术工作的优良作风。 本毕业设计的任务是对给定零件搭扣（见附图）进行冲压工艺性分析，提出各种可能的冲压工艺方案，经过分析与论证确定适合于给定生产条件的最佳工艺方案。进行详细的工艺计算，选择冲压设备，编制出工艺文件。然后设计出指定的冲压模具。要求使用三维造型软件（Pro/E，UG，CATIA）进行模具的造型设计，优先使用三维造型软件进行工程图绘制，在整个设计中要注意设计理念，设计方法与手段的创新。 课题的意义及研究动态: 提高劳动生产率、产品质量、降低成本、扩大冲压工艺应用范围；提高冲压零件精度、减少制造周期、提高模具寿命；模具的标准化及专业化、管理的统一化及等级化；提高专业人员的技术水平。 冲压是利用安装在冲压设备上的模具对材料施加压力，使其产生分离或塑性变形，从而获得所需零件的一种压力加工方法[5]。由于冲压加工具有许多突出的优点，因此在工业生产中，尤其是大批量生产中得到广泛应用。从精细的电子元件、仪表指针到汽车的覆盖件、高压容器封头以及航空航天器的蒙皮、机身等均需冲压加工。随着工业产品的不断发展和生产技术水平不断提高，不少过去用铸造、锻造、切削加工方法制造的零件，已被质量轻、刚度好的冲压件所代替[6]。 我国冲压模具无论在数量上，还是在质量、技术和能力等方面都已有了很大发展，但与国民经济需求和世界先进水平相比，差距仍很大，一些大型、精密、复杂、长寿命的高档模具每年仍大量进口，特别是中高档轿车的覆盖件模具，目前仍主要依靠进口。一些低档次的简单冲模，已趋供过于求，市场竞争激烈[7]。我国冲压模具产品质量水平低主要表现在精度、表面粗糙度、寿命及模具的复杂程度上；生产工艺水平低则主要表现在加工工艺、加工装备等方面[8]。 虽然近年来我国模具行业发展迅速，但是离国内的需要和国际水平还有很大的差距。制造产业是一个国家的综合国力及技术水平的体现，而模具行业的发展是制造产业的关键。针对这种情况，国家出台了相应的政策，正积极发展模具制造产业。 课题的主要内容（观点）、创新之处： 本毕业设计的任务是对给定零件搭扣（见附图）进行冲压工艺性分析，提出各种可能的冲压工艺方案，经过分析与论证确定适合于给定生产条件的最佳工艺方案。进行详细的工艺计算，选择冲压设备，编制出工艺文件。然后设计出指定的冲压模具。要求使用三维造型软件（Pro/E，UG，CATIA）进行模具的造型设计，优先使用三维造型软件进行工程图绘制，在整个设计中要注意设计理念，设计方法与手段的创新。 本毕业设计的具体要求如下： 1.作好设计的前期准备，收集必要的原始资料，了解冲压工艺及模具技术发展新动态。要求查阅与本课题有关的资料10篇以上，其中外文资料不少于一篇，要求翻译英文文献一篇，英文字符在1.2万字以上。 2.结合课题进行实习和调研，写出开题报告。主要内容：课题的目的、意义、国内外研究动态；课题的主要内容和创新之处，设计方案及实施计划。 3.制定工艺规程，完成冲压工艺过程卡一份。 4.绘制指定工序的冲压模具图纸1～2套（含完整的装配图、零件图，工作量不少于3A0），图纸应符合国家标准，符合工厂生产用图的要求。 5.撰写毕业设计说明书，字数在1.5万字以上。中文摘要350字以内，外文摘要与中文摘要对应。全部设计文件及附件符合规范化要求，祥见本院毕业设计（论文）工作手册。 6.生产条件：按中型企业。生产类型：大量 完成期限和预期进度： 1. 毕业设计课题开题报告； 1周 2. 科技英语翻译； 1周 3. 编制冲压工艺规程； 0.5周 4. 设计成形工艺及模具；方案及合理性，可靠性论证； 1周 5. 设计及绘图。模具装配图和非标零件图； 6.5周 6. 编制模具主要零件的加工工艺规程； 0.5周 7. 编制其中一套模具装配说明书； 1周 8. 撰写毕业论文； 1周 9. 准备答辩。 0.5周 主要参考资料： [1] 中国机械工程学会. 中国模具设计大典[M]. 南昌：江西科学技术出版社，2003 [2] 许发樾. 模具设计与制造手册[M]. 北京：机械工业出版社，2000 [3] 《冲压模具手册》编写组. 冲模设计手册[M]. 北京：机械工业出版社，1999 [4] 冯柄尧等. 模具设计与制造简明手册[M]. 上海：上海科学技术出版社，1998 [5] 马正元等. 冲压工艺与模具设计[M]. 北京：机械工业出版社，2000 [6] 肖景容等. 冲压工艺学[M]. 北京：机械工业出版社，2000 [7] 李云程等. 模具制造工艺学[M]. 北京：机械工业出版社，2000 [8] 黄费哲等. 冷冲压工艺与模具设计指导[M]. 常德：湖南文理学院，2005 [9] 通过校园网维普中文期刊数据库检索模具设计方面的论文10篇以上。 指导教师意见： 签名： 年 月 日 开 题 报 告 会 纪 要 时 间 地 点 与 会 人 员 姓 名 职务（职称） 姓 名 职务（职称） 姓 名 职务（职称） 会议记录摘要： 会议主持人： 记 录 人： 年 月 日 教研室意见 教研室主任签名： 年 月 日