毕业论文-托板复合模设计14878.doc

目 录冲裁模设计题目.3（一）冲裁件工艺分析.3（二） 确定工艺方案及模具结构形式.3（三） 模具设计计算.41排样 计算条料宽度及确定步距.42利用率计算.43计算总冲压力. . .54确定压力中心. . 65冲模刃口尺寸及公差的计算. . . .76. 确定各主要零件结构尺寸. . .9（1）凹模外形尺寸的确定. . . .9（2）凸模长度l1的确定. .9（3）凸模强度校核. . . .10（4）定位零件的设计.11（5）导料板的设计.11（6）卸料板的设计.11（四）冲压设备的选用11（五）设计并绘制总图、选取标准件11（六）设计绘制非标准零件图.13（七）模具主要零件加工工艺规程的制.13总装工艺. . .13垫板的加工工艺. . .13凸模固定板的加工工艺. . . .13落料凸模的加工工艺. . . .13导正销的加工工艺. . . .15冲孔凸模的加工工艺. . . . .15卸料板加工工艺. . . .15凹模加工工艺. . . .15导料板加工工艺. . . . .16始冲挡料销的加工工艺. . . . .16体会. . . . . . . . . . . . .18参考文献. . . . . . . . . . . . .19附图纸. . . . . . . . . . . .（见图纸）08f是优质碳素结构钢,其中f表示沸腾钢,08表示平均含碳量冲裁模设计题目如图1所示零件：托扳生产批量：大批量材料：08f t=2mm设计该零件的冲压工艺与模具 图1 托板零件图（一）冲裁件工艺分析1. 材料：08f钢板是优质碳素结构钢，具有良好的可冲压性能。2. 工件结构形状：冲裁件内、外形应尽量避免有尖锐清角，为提高模具寿命，建议将所有90尖锐清角改为r1的圆角。3. 凸模最小尺寸校核 ：查冷冲压技术表3-9无导向凸模冲孔的 最小尺寸；d=0.9t=0.92 =1.8mm由于 d3.5mm由于la1，所以j23-25压力机为所选压力机。其基本参数如下：最大闭合高度 270mm闭合高度调节量 55mm工作台尺寸（前后左右） 370mm560mm工作台孔尺寸（前后左右） 200mm290m垫板尺寸（厚度孔径） 50mm200mm模柄孔尺寸 直径40mm60mm最大倾角 30（五）设计并绘制总图、选取标准件 模板、卸料板、导料板、垫板、导柱、导套、模架和模柄都是从模具设计与制造简明手册有的是把标准件买回来加工，螺钉和销 在机械制图中选用标准件 ，模架选用标准中间导柱模架 标准是 gb/t2851.3-90 根据 模具技术标准应用参数如下：周界是 160mm125m最大闭合高度 190mm最小闭合高度 160mm上模座厚度 35mm下模座厚度 40mm模具的闭合高度校核：40+35+28+56+10=170mm该模具符合要求按已确定的模具形式及参数绘制模具总装图。如图4，单排冲孔落料连续模。图四总装图技术要求1.采用标准模架后侧导柱模架，标准是gb/t2851.1-902.冲模零件不 允许有裂痕，工作表面不允许有划痕，机械损伤，锈蚀等表面缺陷，3.冲模凹模工作孔不允许有 倒锥度4.冲裁的凸凹模刃口及侧刃等必须锋利不允许有崩刃和机械损伤，5.零件图上未标明的倒角尺寸，除刃口外所有的锐边都倒角1x45度或道圆角，表2 零件明细表（六）绘制非标准零件图，（略） 见零件图 (七) 模具主要零件加工工艺规程的编制1.备料2.将模柄装入9上模座后磨平，然后用手枪钻直径6mm的齐缝销孔配铰大 入12销3.将13导正销装入14落料凸模中，把再把落料凸模组和7冲孔凸模装入到6凸模固定板中然后铆紧磨平4.用等高块把9上模座支起，将8垫板，6固定板，调整后用4螺钉固定，配铰直径8mm的孔，大入10销5.把9上模座放下到一定高度，保证模架的 移动平稳，灵活，无泻止现象，让凸模刃口在凹模刃口下，调整间隙，保证图纸设计要求，用螺钉紧固，15卸料板，16导料板，19始冲档料销及17凹模。再用3螺钉紧固17凹模和1下模座然后配饺销孔大入销，6.试模7.调整到合格8.入库垫板的加工工艺1.备料（外购标准模块16014010）2.按图纸要求画线，3.在钻洗床上加工4.检验5.入库凸模固定板的加工工艺1.备料（外购标准模块16014018）2.按图纸要求画线，3.在钻洗床上加工四个凸模孔和两个销孔四个螺钉通孔4.攻4m8螺纹孔5.在电火花满走丝上加工落料凸模孔6.检验7.入库落料凸模的加工工艺1.备料2.锻造成683260的模块3.在刨床上先刨一平面4.以该面为基准按图纸要求画线5.在数控铣床上铣出图纸上的外形6.在钻铣床上钻出导正销的孔7.按图纸要求做热处理8.检验9.入库导正销的加工工艺1.备料2.锻造成直径860的胚料3.在数控车床上加工零件按图纸要求4.按图纸要求热处理5.检验6.入库冲孔凸模的加工工艺1.备料2.锻造成直径为1460的胚料3.在数控车床上加工零件按图纸要求4.按图纸要求热处理5.检验6.入库卸料板加工工艺1.备料（外购标准模块16014012）2.按图纸要求画线，3.在钻洗床上加工四螺钉通孔和两个销孔及四个通过凸模的孔4.在铣床上加工剩余的部分5.检验6.入库凹模加工工艺1.备料（外购标准模块16014028）2.按图纸要求画线，3.在钻洗床上加工两销孔和四螺纹孔4.攻丝5.用点火花加工工作刃口6.按图纸要求做热处理7.检验8.入库导料板加工工艺1.备料（外购标准模块1301408）在 标准模块上切割成两块1303582.按图纸要求画线，3.在刨床上把不平整的边刨床平及始冲挡料销的槽，在插床上加工始冲挡料销的剩余部分4.在钻铣床上加工两销孔和四个螺纹通孔5.攻螺纹丝4m86.检验7.入库始始挡料销的加工工艺1.备料2.锻造成55510的胚料3.在刨床上先刨一平面做基准4.在基准上划线5.在铣床上加工出零件图的样子6.按图纸要求做相应的热处理7.检验8.入库体会学习不仅仅是为了知道自己看了那些书，而是掌握书里面的知识这样才是自己的。课程设计就是这样一个让自己掌握上课学的和书本上的知识，要做出想要的一套模具就必须对他整个的设计、工艺编制和制造过程有比较熟悉的了解，只有各个阶段顺利的完成才有可能设计出能完成设计要求的模具。在大学里面的实践机会不是很多，也可以说是非常少，课程设计就成了我们少有的实践机会，通过从最初得到的任务书到完成说明书画出完整的零件图和装配图是一个辛苦的过程，这不仅仅是说对身体的考验，还是对知识结构的考验。一套模具的设计是要对整个系统的设计和校验，通过书本上各个零件的设计方法，经过自己的整理和具体的设计，最终完成任务书的要求。两周的专业课课程设计是这学期的总结，揉和了各种基础课，而基础课程的学习只是一个了解过程，通过课程设计不仅仅会用到我们学过的知识，还有部分知识需要通过收集的资料、查模具手册。课程设计中最重要的部分就是通过计算完成零件图和装配图的绘制，无论是模架还是定位的销钉都会有属于他们的计算，而书写说明书中的主要部分是模具零部件的校核，也只有拥有足够的强度才能够完成预定的设计要求。在两周的设计时间里，让我知道了即使很简单的事情要想做得仔细也困难，要的都是衡心。参考文献： 1：冷冲压技术 翁其金主编 北京机械工业出版社 2000年11月版 2：互换性与测量技术基础（第四版）廖念钊 许金钊 主编 中国计量出版社 2008年2月版 3：现代工程制图 李丽 主编 高等教育出版社 2005年3月版4：模具设计与制造简明手册（第二版） 冯炳尧 韩泰来 蒋文森 主编 上海科学技术出版社 1998版5：模具设计与制造实训教程 李学峰 成虹 主编 化学工业出版社 2005年1月版6：冲压模具设计与制造 刘建超 张宝忠 主编 高等教育出版社 2004年6月版7：材料成形设备 王卫卫 主编 机械工业出版社 2009年6月版8：材料力学 (第四版) 北京科技大学和东北大学编 高等教育出版社 2008年1月版 08f中f表示是沸腾钢，08表示为含碳量为万分之八 它属于优质碳结构钢，是08f。 08f的化学成分：c%0.05-0.11, mn%0.25-0.50, si=%0.03, p=%0.035, s=%0.035, cr=%0.10, ni=%0.30, cu=%0.20. 这里除了锰的含量少低外，其他的化学成分都符合，因此可以认为它是08f。 强度、硬度很低，而塑性、韧性极高，具有良好的冷变形性和焊接性，正火后切削加工性尚可，退火后导磁率较高，剩磁较少，但淬透性、淬硬性极低 这种钢的塑性很好，主要用来制造冷冲压件。锰的在钢中起到增加弹性强度的作用，因此在符合要求的情况下，含量可以有偏差。 ag an employment tribunal clai emloyment tribunals sort out disagreements between employers and employees. you may need to make a claim to an employment tribunal if: you dont agree with the disciplinary action your employer has taken against you your employer dismisses you and you think that you have been dismissed unfairly. for more informu, take advice from one of the organisations listed underfur ther help. employment tribunals are less formal than some other courts, but it is still a legal process and you will need to give evidence under an oath or affirmation. most people find making a claim to an employment tribunal challenging. if you are thinking about making a claim to an employment tribunal, you should get help straight away from one of the organisations listed underfurther help. ation about dismissal and unfair dismissal, seedismissal. you can make a claim to an employment tribunal, even if you haventappealedagainst the disciplinary action your employer has taken against you. however, if you win your case, the tribunal may reduce any compensation awarded to you as a result of your failure to appeal. remember that in most cases you must make an application to an employment tribunal within three months of the date when the event you are complaining about happened. if your application is received after this time limit, the tribunal will not usually accept i. if you are worried about how the time limits apply to you if you are being represented by a solicitor at the tribunal, they may ask you to sign an agreement where you pay their fee out of your compensation if you win the case. this is known as adamages-based agreement. in england and wales, your solicitor cant charge you more than 35% of your compensationif you win the case. you are clear about the terms of the agreement. it might be best to get advice from an experienced adviser, for example, at a citizens advice bureau. to find your nearest cab, including those that give advice by e-mail, click onnearest cab. for more information about making a claim to an employment tribunal, seeemployment tribunals. the (lack of) air up there watch m cay man islands-based webb, the head of fifas anti-racism taskforce, is in london for the football associations 150th anniversary celebrations and will attend citys premier league match at chelsea on sunday. i am going to be at the match tomorrow and i have asked to meet ya ya toure, he told bbc sport. for me its about how he felt and i would like to speak to him first to find out what his experience was. uefa hasopened disciplinary proceedings against cskafor the racist behaviour of their fans duringcitys 2-1 win. michel platini, president of european footballs governing body, has also ordered an immediate investigation into the referees actions. cska said they were surprised and disappointed by toures complaint. in a statement the russian side added: we found no racist insults from fans of cska. age has reached the end of the beginning of a word. may be guilty in his seems to passing a lot of different life became the appearance of the same day; may be back in the past, to oneself the paranoid weird belief disillusionment, these days, my mind has been very messy, in my mind constantly. always feel oneself should go to do something, or write something. twenty years of life trajectory deeply shallow, suddenly feel something, do it.一字开头的年龄已经到了尾声。或许是愧疚于自己似乎把转瞬即逝的很多个不同的日子过成了同一天的样子；或许是追溯过去，对自己那些近乎偏执的怪异信念的醒悟，这些天以来，思绪一直很凌乱，在脑海中不断纠缠。总觉得自己似乎应该去做点什么，或者写点什么。二十年的人生轨迹深深浅浅，突然就感觉到有些事情，非做不可了。the end of our life, and can meet many things really do?而穷尽我们的一生，又能遇到多少事情是真正地非做不可？ during my childhood, think lucky money and new clothes are necessary for new year, but as the advance of the age, will be more and more found that those things are optional; junior high school, thought to have a crush on just means that the real growth, but over the past three years later, his writing of alumni in peace, suddenly found that isnt really grow up, it seems is not so important; then in high school, think dont want to give vent to out your inner voice can be in the high school children of the feelings in a period, but was eventually infarction when graduation party in the throat, later again stood on the pitch he has sweat profusely, looked at his thrown a basketball hoops, suddenly found himself has already cant remember his appearance. baumgartner the disappointing news: mission aborted. r plays an important role in this mission. starting at the ground, conditions have to be very calm - winds less than 2 mph, with no precipitation or humidity and limited cloud cover. the balloon, with capsule attached, will move through the lower level of the atmosphere (the troposphere) where our day-to-day weather lives. it will climb higher than the tip of mount everest (5.5 miles/8.85 kilometers), drifting even higher than the cruising altitude of commercial airliners (5.6 miles/9.17 kilometers) and into the stratosphere. as he crosses the boundary layer (called the tropopause),e can expect a lot of turbulence. we often close ourselves off when traumatic events happen in our lives; instead of letting the world soften us, we let it drive us deeper into ourselves. we try to deflect the hurt and pain by pretending it doesnt exist, but although we can try this all we want, in the end, we cant hide from ourselves. we need to learn to open our hearts to the potentials of life and let the world soften us.生活发生不幸时，我们常常会关上心门；世界不仅没能慰藉我们，反倒使我们更加消沉。我们假装一切仿佛都不曾发生，以此试图忘却伤痛，可就算隐藏得再好，最终也还是骗