1.毕业论文,毕业设计
防火栓垫片复合模设计论文编号:JX464 有设计图,论文字数:9429,页数:30摘要:随着模具的迅速发展,在现代工业生产中,模具已经成为生产各种工业产品不可缺少的重要工艺设备,为了扩展在工艺方面的知识面为了适应社会的要求,学校举行了课程设计,这次课程设计是在学习完冲模、模具制造等课程的基础上进行的,是对我综合能力的考核,是对我所学知识的综合运用,也是对我所学知识的回顾与检查。通过实例,分析了零件的冲压工艺方案,阐述了模具结构特点及工作过程,最后提出了模具设计应该注意的问题。关键词:冲模;冲压工艺;模具设计Abstract: Through an example, the stamping process for forming the multi-direction bent parts is analyzed .The structure characteristics and working process of the die for stamping the multi-direction bent parts are presented .Theparts needing attention in the design of the die are put forward .key words: die; stamping process ; die design 目录摘要 1Abstract 1前 言 3绪 论 3第1章 冲压件工艺的分析 6第2章 主要工艺参数的计算 72.1 确定冲压的基本工序 82.2 确定基本工序的尺寸公差 82.3 排样及材料的利用率 82.4 计算工序压力 82.5 冲压设备的的选择 92.6确定压力中心 102.7 冲模刃口尺寸及公差的计算: 102.8 确定个主要零件的结构尺寸: 11第3章 确定工艺方案及模具结构形式 123.1 工艺方案的确定 133.2 模具结构形式选择的基本原则: 14第4章 模具设计 144.1 凹模板外形尺寸的确定 154.2 凸模固定板外形尺寸的确定 154.3凸凹模垫板外形尺寸确定 154.4.卸料橡胶的选用: 16第5章 固定机构的设计 185.1 模板类零件的固定: 185.2 凸模的固定: 185.3 凹模镶块的固定: 18第6章 设计并绘制总装配图、选取标准件(附图) 206.1 下模座的选用 206.2 上模座的选用 21第7章 绘制非标准零件图(附模具零件图) 22第8章 本模具的工作过程及特点 238.1 工作过程: 238.2 本模具结构特点: 23第9章 模具零件加工工艺的编制 259.1 卸料板 259.2 挡料销 26结束语 27致谢 28参考文献 29以上回答来自:
祝您早日找到满意的答案!
2.
Characters in The Age of InnocenceMajor Characters * Newland Archer: The story's protagonist is a young, popular, successful lawyer living with his mother and sister in an elegant New York City house. Since childhood, his life has been shaped by the customs and expectations of upper class New York City society. His engagement to May Welland is one in a string of accomplishments. At story's start, he is proud and content to dream about a traditional marriage in which he will be the husband-teacher and she the wife-student. His life changes when he meets Countess Ellen Olenska. Through his relationship with her — first friendship, then love — he begins questioning the values on which he was raised. He sees the sexual inequality of New York society and the shallowness of its customs, and struggles to balance social commitment to May with love for Ellen. * Mrs. Manson Mingott: The fat, feisty matriarch of the powerful Mingott family, and grandmother to Ellen and May. She controls her family: at Newland's request, she has May and Mrs. Welland agree to an earlier wedding date; she controls the money — withholding Ellen's living allowance (when the family is angry with Ellen), and having niece Regina Beaufort ask for money when in financial trouble. Mrs. Mingott is a maverick in the polite world of New York society, at times pushing the boundaries of acceptable behavior; receiving guests in her house's ground floor, though society associates that practice with prostitutes. Her welcoming Ellen is viewed skeptically, and insists the rest of the family support Ellen. * Mrs. Welland: May's mother, has raised her daughter to be a proper society lady. May's dullness, lack of imagination, and rigid views of appropriate and inappropriate behavior are consequence of her influence. Mrs. Welland is the driving force behind May's commitment to a long engagement. Without her mother's influence, May might have agreed earlier to Newland's request for an earlier wedding date. After few years of marriage, Newland Archer perceives in his mother-in-law what May will become — stolid, unimaginative, and dull. * May Welland: Newland Archer's fiancée, then wife. Raised to be a perfect wife and mother, she follows and obeys all of society's customs, perfectly. Mostly, she is the shallow, uninterested and uninteresting young woman that New York society requires. * Ellen Olenska: She is May's cousin and Mrs. Manson Mingott's granddaughter. She became a Countess by marrying Polish Count Olenski, a European nobleman who never appears in the story. When the story begins, Ellen has fled her unhappy marriage, lived in Venice with her husband's secretary, and has returned to her family in New York City, in America. She is a free spirit who helps Newland Archer see beyond narrow New York society. * New York City Society: Composed of powerful, wealthy families. These people follow and impose a strict, rigid code of social custom and behavior, and judge as unacceptable and disposable the people who do not follow their rules. Ellen has difficulty adapting to the behavior that such a society thinks appropriate for a woman separated from her husband. New York society's judgement is clear; almost everyone refuses to attend the dinner party honoring Ellen's return.。
转载请注明出处众文网 » 发光童鞋毕业论文(毕业论文,毕业设计)