冲压模具毕业设计说明书范例

ocusing on ways and means of improving and upgrading work further development of three to split A fully grasp no unauthorised created The township no unauthorised created the existing building one household one document survey and file storage work must be unconditional and full coverage Main corridor leading to the town road river village the Central built up area of the town on both sides must be to create a no unauthorised village According to five hundred villages created and shanty towns villages old houses reconstruction of old plant expand create upgrading creates files the real no unauthorised village created into the benefit of the people of very good thing B to strictly manage count as unauthorised controls Promoting the new control work to move the center of gravity management measures to the front and earnestly pipes effectively A strict new unauthorised network responsibility Sectors such as land housing and basic stations stations and the Township of grid accountability mechanisms must be strictly in accordance with the new regulatory requirements effective implementation of the area of responsibility of the new inspections suppression demolition work to ensure that the new zero tolerance Second public security water electricity water oceans and fisheries tourism collaboration market supervision departments should strictly enforce the illegal construction of disposal of relevant provisions of the regulations effective fulfilment of responsibilities particularly in electricity and water supply and other units may not be new illegal buildings to supply water and electricity supply While more regulation to prevent personal privacy violations Illicit trading in illegal construction in the Ministry of public security sector to strictly from the blow Three is to create additional offence reporting system of incentives According to building law and covers an area of nature to report timely degree divided report grade effective after the removal of certain incentives C integrated implementation building demolition modification use combination Demolition is the means and purpose built is To adhere to the building demolished combination of construction and demolition waste demolished with combined efforts to improve the scientific level of three to split second we must pay attention to three to split and five hundred and five water treatment three of the four sides the shackDistrict transformation and dangerous old room transformation and two road sides series work organic combined up active do River and along demolition work and manpower advance village in the and old residential demolition work to improved masses housing conditions and live environment three to put three modified a split as traditional low and small and bulk industry structure transformation upgrade of important initiatives to caught speed up advance industry Park effective optimization park environment and improve idle land of utilization real achieved environment improved and productivity development mutual promoting total win Five firmly implement promoting work ahead to create highlights Third deployment implementation of seven then it is imperative to strengthen responsibility and improve the mechanisms and implementation All localities and departments must be convinced that goals going all out mustering spirit work together to ensure that this year s objectives carry out tasks at the forefront First we must strengthen the leadership to implement Departments at all levels should always work and rural five water treatment three to split in an important position and carry the main responsibility main leader personally leaders arrested and layers of responsibility rank transmission pressure established hierarchical accountability and work together to promote the work of the mechanism a concerted effort pay attention to implementation County nongban flood three to one down to further play a leading catch total integrated and coordinated role of all kinds is long Sheriff Inspector to effectively fulfill their responsibilities formed the alignment on the fire line and management a lively situation Second we must strengthen the test implementation of the Governor Role play the Governor got the baton for agricultural and rural focus and five water treatment three to split work refine improve assessment methods and evaluation system accurate assessment Combined with dare play tree benchmark style building five major operations carry on and gain firsthand experience of supervision in particular to strengthen the focus on the long signs go left names such as supervision urged all levels longer on duty in place Through the supervisory assessment to promote habits stimulating power Third we must strengthen implementation style Departments at all levels to work in rural areas and five water treatment three to split as training cadres for major platforms compete against large examination room inspection cadres work performance of the ring water control and the Japanese pulled a workout training discovery and selection of cadres Than good catch up first to excellence oriented Party members and cadres at all levels must adhere to the rural water control and the Japanese pulled a grass roots put down the shelf leaned pragmatic style the spirit of play become a benchmark model Four we must strengthen propaganda implementation Comprehensive utilization of micro credit micro blogging new media mining summarizing good publicity work in the countryside and five water treatment three to split advanced models point to gather positive energy for the community to see the results of our work in time increase public awareness participation rates satisfaction and support Play gongqingfu a mass organization and grass roots such as schools communityThe role of XXXX 工业大学继续教育学院工业大学继续教育学院 学生毕业设计 毕业论文 学生毕业设计 毕业论文 题题 目目冲冲压压模模具具毕毕业业设设计计 专专 业业机械工程及自动化机械工程及自动化 班班 级级机本机本 081081 姓姓 名名 XXXXXX 学学 号号 指导教师指导教师 XXXXXX 起讫日期起讫日期 2011 02 21 2011 5 282011 02 21 2011 5 28 20112011 年年 0505 月月 1818 日日 ocusing on ways and means of improving and upgrading work further development of three to split A fully grasp no unauthorised created The township no unauthorised created the existing building one household one document survey and file storage work must be unconditional and full coverage Main corridor leading to the town road river village the Central built up area of the town on both sides must be to create a no unauthorised village According to five hundred villages created and shanty towns villages old houses reconstruction of old plant expand create upgrading creates files the real no unauthorised village created into the benefit of the people of very good thing B to strictly manage count as unauthorised controls Promoting the new control work to move the center of gravity management measures to the front and earnestly pipes effectively A strict new unauthorised network responsibility Sectors such as land housing and basic stations stations and the Township of grid accountability mechanisms must be strictly in accordance with the new regulatory requirements effective implementation of the area of responsibility of the new inspections suppression demolition work to ensure that the new zero tolerance Second public security water electricity water oceans and fisheries tourism collaboration market supervision departments should strictly enforce the illegal construction of disposal of relevant provisions of the regulations effective fulfilment of responsibilities particularly in electricity and water supply and other units may not be new illegal buildings to supply water and electricity supply While more regulation to prevent personal privacy violations Illicit trading in illegal construction in the Ministry of public security sector to strictly from the blow Three is to create additional offence reporting system of incentives According to building law and covers an area of nature to report timely degree divided report grade effective after the removal of certain incentives C integrated implementation building demolition modification use combination Demolition is the means and purpose built is To adhere to the building demolished combination of construction and demolition waste demolished with combined efforts to improve the scientific level of three to split second we must pay attention to three to split and five hundred and five water treatment three of the four sides the shackDistrict transformation and dangerous old room transformation and two road sides series work organic combined up active do River and along demolition work and manpower advance village in the and old residential demolition work to improved masses housing conditions and live environment three to put three modified a split as traditional low and small and bulk industry structure transformation upgrade of important initiatives to caught speed up advance industry Park effective optimization park environment南京工业大学本科生毕业设计 论文 and improve idle land of utilization real achieved environment improved and productivity development mutual promoting total win Five firmly implement promoting work ahead to create highlights Third deployment implementation of seven then it is imperative to strengthen responsibility and improve the mechanisms and implementation All localities and departments must be convinced that goals going all out mustering spirit work together to ensure that this year s objectives carry out tasks at the forefront First we must strengthen the leadership to implement Departments at all levels should always work and rural five water treatment three to split in an important position and carry the main responsibility main leader personally leaders arrested and layers of responsibility rank transmission pressure established hierarchical accountability and work together to promote the work of the mechanism a concerted effort pay attention to implementation County nongban flood three to one down to further play a leading catch total integrated and coordinated role of all kinds is long Sheriff Inspector to effectively fulfill their responsibilities formed the alignment on the fire line and management a lively situation Second we must strengthen the test implementation of the Governor Role play the Governor got the baton for agricultural and rural focus and five water treatment three to split work refine improve assessment methods and evaluation system accurate assessment Combined with dare play tree benchmark style building five major operations carry on and gain firsthand experience of supervision in particular to strengthen the focus on the long signs go left names such as supervision urged all levels longer on duty in place Through the supervisory assessment to promote habits stimulating power Third we must strengthen implementation style Departments at all levels to work in rural areas and five water treatment three to split as training cadres for major platforms compete against large examination room inspection cadres work performance of the ring water control and the Japanese pulled a workout training discovery and selection of cadres Than good catch up first to excellence oriented Party members and cadres at all levels must adhere to the rural water control and the Japanese pulled a grass roots put down the shelf leaned pragmatic style the spirit of play become a benchmark model Four we must strengthen propaganda implementation Comprehensive utilization of micro credit micro blogging new media mining summarizing good publicity work in the countryside and five water treatment three to split advanced models point to gather positive energy for the community to see the results of our work in time increase public awareness participation rates satisfaction and support Play gongqingfu a mass organization and grass roots such as schools communityThe role ofIII 目录 摘要 I ABSTRACT II 1 绪论 1 2 零件的工艺性分析 14 2 1 零件的工艺性分析 14 2 2 冲裁件的精度与粗糙度 16 2 3 冲裁件的材料 16 3 冲压模具总体结构设计 18 3 1 模具类型 18 3 2 操作与定位方式 18 3 3 模架的类型与精度 18 4 冲压模具工艺与设计 19 4 1 样设计与计算 19 4 2 设计冲力与压力中心 21 5 模具的总张图与零件图 25 5 1 级进模具的总张图 25 5 2 冲压模具的零件图 26 5 3 压力机的校核 39 6 冲压模具零件加工工艺的编制 41 6 1 凹模加工工艺过程 41 6 2 凸模加工工艺过程 42 6 3 卸料板模加工工艺过程 43 6 4 凸模固定板加工工艺过程 44 结 论 46 参考文献 47 致 谢 48 南京工业大学本科生毕业设计 论文 I 摘摘 要要 冲压模具在实际工业生产中应用广泛 在传统的工业生产中 工人生产的 劳动强度大 劳动量大 严重影响生产效率的提高 随着当今科技的发展 工 业生产中模具的使用已经越来越引起人们的重视 而被大量应用到工业生产中 来 冲压模具的自动送料技术也投入到实际的生产中 冲压模具可以大大的提 高劳动生产效率 减轻工人负担 具有重要的技术进步意义和经济价值 本文对冷冲压技术的分类 特点及发展方向作了简略概述 论述了冲压零 件的形成原理 基本模具结构与运动过程及其设计原理 对典型的冲压件模具 进行了设计 大直径三通管冲压复合模设计解决了大直径三通管的加工难题 带有浮动凸凹模的拉伸冲孔复合模设计 适力压边式落料拉伸切边复合模设计 消音器后补碗落料 拉深 冲孔 翻边复合模设计 一模两件落料拉伸冲孔翻 边复合模设计 环形弯曲件的模具设计 铰链卷圆成形工艺及模具设计 半自 动送料切角装置设计 滑板式送料拉深 冲孔 翻边模设计实现自动送料 长 管多孔冲模设计 带凸缘台阶方盒形零件拉深模和盒形件侧壁小孔翻孔模 冲 压模具的设计充分利用了机械压力机的功用特点 在室温的条件下对坯件进行 冲压成形 生产效率提高 济效益显著 本文介绍的模具实例结构简单实用 使用方便可靠 对类似工件的大批量 生产具有一定的参考作用 ABSTRACT II Abstract Punching die has been w 1ff8 idely used in industrial production In thethe traditional industrial production the worker work very hard and there are too much work so the efficiency is low With the development of the science and technology nowadays the use of punching die in the industial production gain more attention and be used in the industrial production more and more Self acting feed technology of punching die is also used in production punching die could increase the efficience of production and could alleviate the work burden so it has significant meaning in technologic progress and economic value The article mainly discussed the classification feature and the developmental direction of the pnnching technology Elaborated the punching components formation principle the basic dies structure and the rate process and the principle of design and designed some conventional punching die the die for big diameter three direction pipe which solved the problom of traditional machining the drawing and punching compound die with float punch matrix the drawing and cutting compound dies with unaltered press the compound die for the back bowl of the noise keeper the design of the compound die which could produce two workpieces in one punching the bending die for the ring shape part the bending die which used the gemel automate loading die for cutting the drawing punching and burring compound dies with sliding automated loading the punching die for the long pipe with two row of hole the drawing die for the square box shape workpiece and the burring die for the box shape workpiece The punching dies that utilized the feature of the normal punch shaped the workpiece in the room temperature and its efficiency and economic situation is excellent The dies here discussed can be easily made conveniently used and safely operated And it could be used as the reference in the large scale production of similar workpieces Key word punching die machincal manufacture die design punching bending drawing 南京工业大学本科生毕业设计 论文 1 冲压模具毕业设计 1 1 绪论绪论 1 11 1 冲压的概念 特点及应用冲压的概念 特点及应用 冲压是利用安装在冲压设备 主要是压力机 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 俗称冲压或冲压件 的一种压力加工方法 冲压通常是在常温下对材料进行冷变形加工 且主 要采用板料来加工成所需零件 所以也叫冷冲压或板料冲压 冲压是材料 压力加工或塑性加工的主要方法之一 隶属于材料成型工程术 冲压所使用的模具称为冲压模具 简称冲模 冲模是将材料 金属或 非金属 批量加工成所需冲件的专用工具 冲模在冲压中至关重要 没有 符合要求的冲模 批量冲压生产就难以进行 没有先进的冲模 先进的冲 压工艺就无法实现 冲压工艺与模具 冲压设备和冲压材料构成冲压加工 的三要素 只有它们相互结合才能得出冲压件 与机械加工及塑性加工的其它方法相比 冲压加工无论在技术方面还是经济 方面都具有许多独特的优点 主要表现如下 1 冲压加工的生产效率高 且操作方便 易于实现机械化与自动化 这是 因为冲压是依靠冲模和冲压设备来完成加工 普通压力机的行程次数为每分 钟可达几十次 高速压力要每分钟可达数百次甚至千次以上 而且每次冲压 行程就可能得到一个冲件 2 冲压时由于模具保证了冲压件的尺寸与形状精度 且一般不破坏冲压件 的表面质量 而模具的寿命一般较长 所以冲压的质量稳定 互换性好 具有 一 模一样 的特征 3 冲压可加工出尺寸范围较大 形状较复杂的零件 如小到钟表的秒表 大 到汽车纵梁 覆盖件等 加上冲压时材料的冷变形硬化效应 冲压的强度和刚 度均较高 4 冲压一般没有切屑碎料生成 材料的消耗较少 且不需其它加热设备 因 而是一种省料 节能的加工方法 冲压件的成本较低 但是 冲压加工所使用的模具一般具有专用性 有时一个复杂零件需要数 套模具才能加工成形 且模具制造的精度高 技术要求高 是技术密集形产品 所以 只有在冲压件生产批量较大的情况下 冲压加工的优点才能充分体现 从而获得较好的经济效益 冲压地 在现代工业生产中 尤其是大批量生产中应用十分广泛 相当多 的工业部门越来越多地采用冲压法加工产品零部件 如汽车 农机 仪器 仪 表 电子 航空 航天 家电及轻工等行业 在这些工业部门中 冲压件所占 的比重都相当的大 少则 60 以上 多则 90 以上 不少过去用锻造 铸造和切 削加工方法制造的零件 现在大多数也被质量轻 刚度好的冲压件所代替 因 此可以说 如果生产中不谅采用冲压工艺 许多工业部门要提高生产效率和产 品质量 降低生产成本 快速进行产品更新换代等都是难以实现 的 1 21 2 冲压的基本工序及模具冲压的基本工序及模具 由于冲压加工的零件种类繁多 各类零件的形状 尺寸和精度要求又各不相 同 因而生产中采用的冲压工艺方法也是多种多样的 概括 绪论 4 起来 可分为分离工序和成形工序两大类 分离工序是指使坯料沿一定的轮廓 线分离而获得一定形状 尺寸和断面质量的冲压 俗称冲裁件 的工序 成形 工序是指使坯料在不破裂的条件下产生塑性变形而获得一定形状和尺寸的冲压 件的工序 上述两类工序 按基本变形方式不同又可分为冲裁 弯曲 拉深和成形四种基 本工序 每种基本工序还包含有多种单一工序 在实际生产中 当冲压件的生产批量较大 尺寸较少而公差要求较小时 若用 分散的单一工序来冲压是不经济甚至难于达到要求 这时在工艺上多采用集中 的方案 即把两种或两种以上的单一工序集中在一副模具内完成 称为组合的 方法不同 又可将其分为复合 级进和复合 级进三种组合方式 复合冲压 在压力机的一次工作行程中 在模具的同一工位上同时完成两种 或两种以上不同单一工序的一种组合方法式 级进冲压 在压力机上的一次工作行程中 按照一定的顺序在同一模具的不 同工位上完面两种或两种以上不同单一工序的一种组合方式 复合 级进 在一副冲模上包含复合和级进两种方式的组合工序 冲模的结构类型也很多 通常按工序性质可分为冲裁模 弯曲模 拉深模和成 形模等 按工序的组合方式可分为单工序模 复合模和级进模等 但不论何种 类型的冲模 都可看成是由上模和下模两部分 组成 上模被固定在压力机工作台或垫板上 是冲模的固定部分 工作时 坯 料在下模面上通过定位零件定位 压力机滑块带动上模下压 在模具工作零件 即凸模 凹模 的作用下坯料便产生分离或塑性变形 从而获得所需形状与 尺寸的冲件 上模回升时 模具的卸料与出件装置将冲件或废料从凸 凹模上 卸下或推 顶出来 以便进行下一次冲压循环 1 31 3 冲压技术的现状及发展方向冲压技术的现状及发展方向 随着科学技术的不断进步和工业生产的迅速发展 许多新技术 新工艺 新 设备 新材料不断涌现 因而促进了冲压技术的不断革新和发展 其主要表现 和发展方向如下 1 冲压成形理论及冲压工艺方面 冲压成形理论的研究是提高冲压技术的基础 目前 国内外对冲压成形理论的 研究非常重视 在材料冲压性能研究 冲压成形过程应力应变分析 板料变形 规律研究及坯料与模具之间的相互作用研究等方面均取得了较大的进展 特别 是随着计算机技术的飞跃发展和塑性变形理论的进一步完善 近年来国内外已 开始应用塑性成形过程的计算机模拟技术 即利用有限元 FEM 等有值分析方 法模拟金属的塑性成形过程 根据分析结果 设计人员可预测某一工艺方案成 形的可行性及可能出现的质量问题 并通过在计算机上选择修改相关参数 可 实现工艺及模具的优化设计 这样既节省了昂贵的试模费用 也缩短了制模具 周期 研究推广能提高生产率及产品质量 降低成本和扩大冲压工艺应用范围的各 种压新工艺 也是冲压技术的发展方向之一 目前 国内外相继涌现出精密冲 压工艺 软模成形工艺 高能高速成形工艺及无模多点成形工艺等精密 高效 经济的冲压新工艺 其中 精密冲裁是提高冲裁件质量的有效方法 它扩大了 冲压加工范围 目前精密冲裁加工零件的厚度可达 25mm 精度可达 IT16 17 级 用液体 橡胶 聚氨酯等作柔性凸模或凹模的软模成形工艺 能加工出用普通 加工方法难以加工的材料和复杂形状的零件 在特定生产条件下具有明显的经 南京工业大学本科生毕业设计 论文 5 济效果 采用爆炸等高能效成形方法对于加工各种尺寸在 形状复杂 批量小 强度高和精度要求较高的板料零件 具有很重要的实用意义 利用金属材料的 超塑性进行超塑成形 可以用一次成形代替多道普通的冲压成形工序 这对于 加工形状复杂和大型板料零件具有突出的优越性 无模多点成形工序是用高度 可调的凸模群体代替传统模具进行板料曲面成形的一种先进技术 我国已自主 设计制造了具有国际领先水平的无模多点成形设备 解决了多点压机成形法 从而可随意改变变形路径与受力状态 提高了材料的成形极限 同时利用反复 成形技术可消除材料内残余应力 实现无回弹成形 无模多点成形系统以 CAD CAM CAE 技术为主要手段 能快速经济地实现三维曲面的自动化成形 2 冲模是实现冲压生产的基本条件 在冲模的设计制造上 目前正朝着以下两 方面发展 一方面 为了适应高速 自动 精密 安全等大批量现代生产的需要 冲模正向高效率 高精度 高寿命及多工位 多功能方向发展 与此相比适应 的新型模具材料及其热处理技术 各种高效 精密 数控自动化的模具加工机 床和检测设备以及模具 CAD CAM 技术也在迅速发展 另一方面 为了适应产品 更新换代和试制或小批量生产的需要 锌基合金冲模 聚氨酯橡胶冲模 薄板 冲模 钢带冲模 组合冲模等各种简易冲模及其制造技术也得到了迅速发展 精密 高效