挡钩的冷冲压模具设计.rar

挡钩的冷冲压模具设计

摘  要

本毕业论文是一台加工混凝土的强制式搅拌机的装配，主要完成对新型搅拌机的了解与认识，完成其装配工艺，进而熟悉其内部结构及工作原理。
根据SM430搅拌主机的装配，了解到该种搅拌机是在意大利先进搅拌机的基础上针对中国混凝土骨料大，连续工作时间长等特点，模块化、分体式设计系列搅拌主机，拥有三项意大利发明专利，其核心技术具备欧洲最先进的混凝土搅拌技术。搅拌驱动部分和搅拌主机本体是两个独立的部分，装卸非常方便，有效解决了传统搅拌机检修及更换配件多的问题。 液压部分配有一个手动备用泵，可在紧急情况下打开卸料门或动力系统保护壳。 卸料门双液压缸驱动，最大限度保证卸料门正常工作，卸料门轴承自动润滑，提高轴承使用寿命。 同步带采用国外进口多楔带，功率强，效率高，使用寿命长。采用意大利多普赛牌润滑油泵，稳定性强，使用寿命长。调心轴承全部采用世界三大品牌之一美国进口TIMKEN轴承，性能更加优越。采用意大利原装进口邦飞利、罗西减速机，噪音低、使用寿命长。减速机与搅拌主轴采用独特的软联接，有效解决了因卡料等因素引起的对减速机及电机的损害，大大加强整机的使用寿命。主机的保护罩除了保护主机外，更能让清凉气流持续进入罩内，冷却电机和减速机，以保障连续作业。
这些先进技术大大提高了搅拌机的质量及使用寿命，提高了在同行业中的竞争力。这些先进技术同时给予我国一些企业启发，改进技术，发展国民经济，同时也提高了建筑业的质量，促进建筑业的发展。

关键词：密封 拧紧 调整 拧紧力矩 规定要求 安装到位

Abstract

The rapid development of modern industry, cold stamping process of a wide range, with high efficiency and high precision, quality and utilization of materials, simple, suitable for mass production and implementation of manufacturing automation in the various sectors of the national economy, almost all Stamping from processed products. The design of the main parts linked to the stamping process analysis, data and the calculation based on selected parts of the stamping method and the convex and concave die other supporting parts design, but to focus on the design methods and needs attention. 20 era, the fabricated metal products, toys and hardware industries on the use of press, press, and other simple mechanical equipment and the      corresponding mold processed products, or some rough parts, which are used for blanking, punching the "knife-edge mold" For metal stretching the "dock workers mold." After the 1970s, using a gradient Die Cutting Machine processing, the punch (punch) and could die before quenching further cutting assembly to replace the original production of Die: heat treatment - assembly - deformation of the cumbersome amendment process . Die finish also a corresponding increase in levels up to 0.01 mm precision. Later, the professional mold factory, workshop die group has been widely used with Die Cutting Machine manufacture.
    Mold is a dedicated tool. Used for the various presses on. Through pressure on the metal or non-metallic materials as required by the shape of manufactured parts. This special tool referred to die. Die high and low levels of production, has become a measure of a country created an important indicator of the level of, but also to a large extent determine the quality and effectiveness of new product development capability. Therefore, the revitalization and development of China's mould industry has increasingly come under people's attention and concern.
Through pressure on the metal or non-metallic materials as required by the shape of manufactured parts. This special tool referred to die. Die high and low levels of production, has become a measure of a country created an important indicator of the level of, but also to a large extent determine the quality and effectiveness of new product development capability. Therefore, the revitalization and development of China's mould industry has increasingly come under people's attention and concern.
    Stamping as a processing industry in the national economy in the processing industry occupies an important position. According to statistics, stamping parts in various industries account for large proportion, particularly in the automotive, electrical, instrumentation, military industry, household electrical appliances, and other aspects of a greater proportion. Stamping processing of a broad range of applications, from sophisticated electronic components, instruments to guide the cover of heavy vehicles and beams, pressure vessel and the thunder of an aerospace craft, the skin, the body Quartermaster punching processing.
    Stamping parts in the shape and size of the interchangeability better precision, in normal circumstances, can meet the requirements of assembly and use. In addition, the stamping process because of a plastic material deformation, to improve the internal organization of metal,       mechanical strength has increased, so has the quality of light stamping parts, good stiffness, high precision and looks smooth, handsome features.
   Stamping processing is a high productivity of the processing methods, such as auto body and other large parts per minute can produce a few, and small parts of the high-speed stamping capacity of 1,000 per minute and above. Because of rough machining is stamping sheet or membrane, and in the general state of cold processing, it would be more easily achieved mechanization and automation, more appropriate allocation of the unmanned robot and the realization of production.

Key words: cold-stamping      single   process   mould

  目   录
1  绪论…………………………………………………………………………………1
1.1冲压加工的重要性及优点 …………………………………………………………1
1.1.1重要性 ……………………………………………………………………………1
1.1.2优点………………………………………………………………………………1
1.1.3 缺点 ……………………………………………………………………………2
1.2压加工的概念…………………………………………………………………………2
1.3 金属弹性变形与塑性变形…………………………………………………………4
2  落料凹模的加工……………………………………………………………………6
2.1工艺分析   ……………………………………………………………………………6
2.1.1冲裁件结构工艺性……………………………………………………………7
2.1.2冲裁件的精度和断面粗糙度…………………………………………………7
2.2工艺方案确定    ……………………………………………………………………8
 2.2.1单工序模的特点………………………………………………………………8
2.2.2复合模的特点…………………………………………………………………9
2.3级进模的设计点 ……………………………………………………………………10
2.3.1定位方式  ……………………………………………………………………10
2.3.2冷冲模类型和特点 ……………………………………………………………10
2.4三类模具的优缺点较  ……………………………………………………………11
2.4.1级进模特点 ……………………………………………………………………11
2.5模具结构形式的定…………………………………………………………………12
2.5.1冲孔落料复合模结构及特点 …………………………………………………12
2.6画排图…………………………………………………………………………………13
2.6.1搭边  ………………………………………………………………………….16
2.6.2步距   …………………………………………………………………………18
2.6.3条料宽度 ………………………………………………………………………18
2.7计算材料利用η    ………………………………………………………………21
2.8计算冲力………………………………………………………………………………21
2.9初选压力  ……………………………………………………………………………22
2.10计算压心 ……………………………………………………………………………23
2.11计算凸凹模刃口尺寸 ……………………………………………………………24
2.11.1间隙的重要性  ………………………………………………………………25
2.11.2间隙测量  ……………………………………………………………………26
2.11.3冲模的安装与调试……………………………………………………………26
2.11.4标准零部件的预制与储备 ……………………………………………………27    2.12各孔口尺寸的确定  ……………………………………………………………31
2.13模具结构设计 …………………………………………………………………………31
2.14工序排样原则  ………………………………………………………………………35
2.15校核压力机安装尺寸 ………………………………………………………………35
3设计小结 …………………………………………………………………………………36
4致谢…………………………………………………………………………………………37
5参考文献   ……………………………………………………………………………….38
6附录…………………………………………………………………………………………39