锤上模锻说明书 3.doc

热锻模设计——传动叉锻造工艺及模具设计 摘要 传动叉一般用于汽车传动轴的端部。它的主要作用：一是传递扭矩，使汽车获得前进的动力，鉴于它是重要的受力零件，所以要求他要有很好的力学性能。因此必须选用锻造的方法来生产制造。通过对零件的分析，首先确定工艺方案，确定冷锻件的尺寸，通过计算锻件基本数据，确定锻锤吨位，绘制计算毛坯图，选择制坯工步，完成各制坯型腔，锻模结构以及切边模的设计。通过本次毕业设计我们可以学习模具设计的一般方法，了解和掌握常用模具整体设计、零部件的设计过程和计算方法，培养正确的设计思想和分析问题、解决问题的能力，特别是总体设计和计算的能力；综合运用热锻模课程和其它有关选修课程的理论及生产实践的知识去分析和解决模具设计问题，使所学专业知识得到进一步巩固和深化；通过计算和绘图，学会运用标准、规范、手册、图册和查阅有关技术资料等，培养模具设计的基本技能；同时掌握锻造工艺，熟悉各种锻造设备，掌握计算机操作以及相关软件的应用，并具有机械设计及制造等综合知识。 关键词： 力学性能，锻造，工艺，锻模结构，锻造设备 HOT FORGING DIE DESIGN—TRANSMISSION FORK FORGING PROCESS ANG DIE DESIGN Abstract Transmission fork is generally used for the end of automobile transmission shaft. Its main functions: one is the transmission of torque, giving the car forward momentum, given that it is important to stress parts, so he must have good mechanical properties. Methods must therefore choose forging to manufacture. Through to the components analysis, first determine the process scheme, determine the cold forging size, by calculating the forging basic data, determine the hammer tonnage calculation, drawing a blank map, select performing step, complete the blank cavity, die structure and design of trimming die. Through the graduation design, we can learn the general method of mould design, design process and calculation method to understand and grasp the common mould overall design, spare parts, training the correct design and analysis problem, problem-solving ability, especially the ability of overall design and calculation; curriculum integrated use of hot forging die and other elective courses related to the theory and practice of knowledge to analyze and solve problems in the mold design, professional knowledge has been further consolidated and deepened; through calculating and drawing, learn to use the standard, specifications, manuals, books and access to relevant technical information, training of basic skills mold design; at the same time to master the forging process, familiar with all kinds of forging equipment, application mast