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畢業(yè)設計（論文）中期檢查表（指導教師） 指導教師姓名：曹泰山 　　 填表日期： 2014年 4 月 20 日 學生學號 1000110102 學生姓名 杜東駿 題目名稱 側抽芯計算器外殼注塑模具設計 已完成內(nèi)容 參觀調(diào)研,查閱資料； 到生產(chǎn)、制造企業(yè)調(diào)研,了解生產(chǎn)、制造、加工情況。結合本設計課題,查閱相關資料； 完成側抽芯計算器外殼外形尺寸設計； 完成模具整體結構及零部件尺寸設計； 繪制模具裝配圖及零件圖； 完成相關計算； 完成英文翻譯； 撰寫論文； 完成畢業(yè)設計。 檢查日期：2014-4-20 完成情況 t全部完成 □按進度完成 □滯后進度安排 存在困難 　模具零部件尺寸校核比較復雜。 解決辦法 　查閱相關資料，并且與指導老師和同學們一起討論解決方案。 預期成績 □優(yōu) 秀 t良 好 □中 等 □及 格 □不及格 建 議 教師簽名： 教務處實踐教學科制表 說明：1、本表由檢查畢業(yè)設計的指導教師如實填寫；2、此表要放入畢業(yè)設計（論文）檔案袋中； 3、各院(系)分類匯總后報教務處實踐教學科備案 編號： 　畢業(yè)設計(論文)任務書 題 目： 側抽芯計算器外殼 注塑模具設計 學　　院： 國防生學院 專 業(yè)： 機械設計制造及其自動化 學生姓名： 杜東駿 學 號： 1000110102 指導教師單位： 機電工程學院 姓 名： 曹泰山 職 稱： 講師 題目類型：¨理論研究 ¨實驗研究 t工程設計 ¨工程技術研究 ¨軟件開發(fā) 2013年12月9日 一、畢業(yè)設計（論文）的內(nèi)容 畢業(yè)設計內(nèi)容 1、查找相關的資料并閱讀消化，明確側抽芯計算器外殼注塑模設計要求，分析該塑料制品成型工藝及其可能性和經(jīng)濟性等因素，對零件圖紙進行結構和工藝分析，設計成型工藝； 2、掌握成型設備的技術規(guī)范，進行模具結構設計及模具設計的有關計算； 3、模具總體尺寸的設計與結構草圖的繪制，模具結構總裝圖和零件工作圖的設計繪制； 4、編制主要零件的制造工藝。 二、畢業(yè)設計（論文）的要求與數(shù)據(jù) 1、計算器上外殼形狀特點確定其注塑模的方案設計； 2、該塑料制品的設計難點是抽芯機構的設計； 3、確定其使用的材料為ABS； 4、制品的具體尺寸請測繪出圖； 5、塑件成型時無變形，注出的制件表面光滑，無氣泡和其它缺陷，無飛邊或少飛邊。 三、畢業(yè)設計（論文）應完成的工作 1、完成注塑模的總體方案設計，完成開題報告。 2、進行模具結構設計并選用標準件，完成零件間的配給選用及相關的設計計算。 3、用A0圖紙繪制裝配圖，采用CAD軟件繪制零件圖，繪圖工作量折合A0圖紙3張以上，其中必須包含兩張A3以上的計算機繪圖圖紙，用PRO/E 軟件對塑件和模具進行實體造型。 4、完成二萬字左右的畢業(yè)設計說明書（論文）；在畢業(yè)設計說明書（論文）中必須包括300-500個單詞詳細的英文摘要； 5、獨立完成與課題相關，不少于四萬字符的指定英文資料翻譯（附英文原文）； 6、完成導師所指定的其它工作。 四、應收集的資料及主要參考文獻 [1] 屈華昌.塑料成型工藝與模具設計[M].北京:機械工業(yè)出版社，2002. [2] 模具實用技術叢書編委會．模具實用技術注塑模具設計制造與應用實例[M]．北京:機械工業(yè)出版社，2002. [3] 顏智偉.塑料模具設計與機構設計[M].北京：國防工業(yè)出版社，2006. [4] 姜明艷.薄壁外殼注塑模設計[J].模具技術. 北京：機械工業(yè)出版社.2002. [5] 王文廣等.塑料注射模具設計技巧與實例[M].北京：化學工業(yè)出版社.2004. [6] 模具實用技術叢書編委會編.塑料模具設計制造與應用實例[M].北京：機械工業(yè)出版社.2002. [7] 李學鋒.塑料模設計及制造[M].北京：機械工業(yè)出版社 2002. [8]〔德〕G.曼格斯，李玉泉譯.塑料注射成型模具的設計和制造[J].北京輕工出版社,2005. [9]譚雪松, 林曉新, 溫麗編. 新編塑料模具設計手冊[M].北京：人民郵電出版社，2007. [10] Childs Peter R.N．Mechanical Design．Oxford :Butterworth-Heinemann[J]，2003. 五、試驗、測試、試制加工所需主要儀器設備及條件 計算機一臺 CAD設計軟件 任務下達時間： 2013年12月9日 畢業(yè)設計開始與完成時間： 2013年12月17日至 2014年05 月4日 組織實施單位： 教研室主任意見： 簽字： 2013年12月14日 院領導小組意見： 簽字： 2013 年12月16日 16 桂林電子科技大學畢業(yè)設計用紙 1 The historical development of mold David O.Kazmer.Injection mold design engineering. Hanser Gardner Publications The emergence of mold can be traced back thousands of years ago, pottery and bronze foundry, but the large-scale use is with the rise of modern industry and developed. The 19th century, with the arms industry (gun's shell), watch industry, radio industry, dies are widely used. After World War II, with the rapid development of world economy, it became a mass production of household appliances, automobiles, electronic equipment, cameras, watches and other parts the best way. From a global perspective, when the United States in the forefront of stamping technology - many die of advanced technologies, such as simple mold, high efficiency, mold, die and stamping the high life automation, mostly originated in the United States; and Switzerland, fine blanking, cold in Germany extrusion technology, plastic processing of the Soviet Union are at the world advanced. 50's, mold industry focus is based on subscriber demand, production can meet the product requirements of the mold. Multi-die design rule of thumb, reference has been drawing and perceptual knowledge, on the design of mold parts of a lack of real understanding of function. From 1955 to 1965, is the pressure processing of exploration and development of the times - the main components of the mold and the stress state of the function of a mathematical sub-bridge, and to continue to apply to on-site practical knowledge to make stamping technology in all aspects of a leap in development. The result is summarized mold design principles, and makes the pressure machine, stamping materials, processing methods, plum with a structure, mold materials, mold manufacturing method, the field of automation devices, a new look to the practical direction of advance, so that pressing processing apparatus capable of producing quality products from the first stage. Into the 70's to high speed, launch technology, precision, security, development of the second stage. Continue to emerge in this process a variety of high efficiency, business life, high-precision multi-functional automatic school to help with. Represented by the number of working places as much as other progressive die and dozens of multi-station transfer station module. On this basis, has developed both a continuous pressing station there are more slide forming station of the press - bending machine. In the meantime, the Japanese stand to the world's largest - the mold into the micron-level precision, die life, alloy tool steel mold has reached tens of millions of times, carbide steel mold to each of hundreds of millions of times p minutes for stamping the number of small presses usually 200 to 300, up to 1200 times to 1500 times. In the meantime, in order to meet product updates quickly, with the short duration (such as cars modified, refurbished toys, etc.) need a variety of economic-type mold, such as zinc alloy die down, polyurethane rubber mold, die steel skin, also has been very great development. From the mid-70s so far can be said that computer-aided design, supporting the continuous development of manufacturing technology of the times. With the precision and complexity of mold rising, accelerating the production cycle, the mold industry, the quality of equipment and personnel are required to improve. Rely on common processing equipment, their experience and skills can not meet the needs of mold. Since the 90's, mechanical and electronic technologies in close connection with the development of NC machine tools, such as CNC wire cutting machine, CNC EDM, CNC milling, CNC coordinate grinding machine and so on. The use of computer automatic programming, control CNC machine tools to improve the efficiency in the use and scope. In recent years, has developed a computer to time-sharing by the way a group of direct management and control of CNC machine tools NNC system. With the development of computer technology, computers have gradually into the mold in all areas, including design, manufacturing and management. 。 International Association for the Study of production forecasts to 2000, as a means of links between design and manufacturing drawings will lose its primary role. Automatic Design of die most fundamental point is to establish the mold standard and design standards. To get rid of the people of the past, and practical experience to judge the composition of the design center, we must take past experiences and ways of thinking, for series, numerical value, the number of type-based, as the design criteria to the computer store. Components are dry because of mold constitutes a million other differences, to come up with a can adapt to various parts of the design software almost impossible. But some products do not change the shape of parts, mold structure has certain rules, can be summed up for the automatic design of software. 如 If a Japanese company's CDM system for progressive die design and manufacturing, including the importation of parts of the figure, rough start, strip layout, determine the size and standard templates, assembly drawing and parts, the output NC program (for CNC machining Center and line cutting program), etc., used in 20% of the time by hand, reduce their working hours to 35 hours; from Japan in the early 80s will be three-dimensional cad / cam system for automotive panel die. Currently, the physical parts scanning input, map lines and data input, geometric form, display, graphics, annotations and the data is automatically programmed, resulting in effective control machine tool control system of post-processing documents have reached a high level; computer Simulation (CAE) technology has made some achievements. At high levels, CAD / CAM / CAE integration, that data is integrated, can transmit information directly with each other. Achieve network. Present. Only a few foreign manufacturers ca 2 Stamping Stamping is a kind of plastic forming process in which a part is produced by means of the plastic forming of the material under the action of a die．Stamping is usually carried out under cold state, so it is also called cold stamping. Heat stamping is used only when the blank thickness is greater than 8-100mm. The blank material for stamping is usually in the form sheet or strip, and therefore it is also called sheet metal forming. Some non-metal sheets (such as plywood, mica sheet, asbestos, leather) can also be formed by stamping. Stamping is widely used in various metalworking industry, and it plays a crucial role in the industries for manufacturing automobiles, instruments, military parts and household electrical appliances, etc. The process，equipment and die are the three foundational problems that needed to be studied in stamping.The characteristics of the sheet metal forming are as follows: (1) High material utilization. (2) Capacity to produce thin-walled parts of complex shape. (3) Good interchangeability of stamping parts precision in shape and dimension. (4) Parts with lightweight，high strength and fine rigidity can be obtained. (5) High productivity, easy to operate and to realize mechanization and automatization. The manufacture of the stamping die is costly, and therefore it only fits to mass production. For the manufacture of products in small batch and rich variety, the simple stamping die and the new equipment such as a stamping machining center, are usually adopted to meet he market demands. The materials for sheet metal stamping include mild steel, copper, aluminum, magnesium alloy and high-plasticity alloy steel, etc. Stamping equipment includes plate shear and punching press. The former shears plate into strips with a definite width, which would be pressed later. The later can be used both in shearing and forming. There are various processes of stamping forming with different working patterns and names, but these processes are similar to each other in plastic deformation．There are following conspicuous characteristics in stamping： (1) The force per unit area perpendicular to the blank surface is not large but is enough to cause the material plastic deformation. It is much less than the inner stresses on the plate plane directions．In most cases stamping forming can be treated approximately as that of the plane stress state to simplify vastly the theoretical deformation mechanics analysis and the calculation of the process parameters. (2) Due to the small relative thickness，the anti-instability capability of the blank is weak under compressive stress．As a result，the stamping process is difficult to proceed successfully without using the anti-instability device (such as blank holder)．Therefore the variety of the stamping processes dominated by tensile stress are more than those dominated by compressive stress． (3) During stamping forming，the inner stress of the blank is equal to or sometimes less than the yield stress of the material．In this point，the stamping is different from the bulk forming. During stamping forming，the influence of the hydrostatic pressure of the stress state in the deformation zone to the forming limit and the deformation resistance is not so important as to the bulk forming．In some circumstances，such influence may be neglected．Even in the case when this influence should be considered，the treating method is also different from that of bulk forming. (4) In stamping forming，the restrain action of the die to the blank is not severe as in the case of the bulk forming(such as die forging)．In bulk forming, the constraint forming is proceeded by the die with exactly the same shape of the part．Whereas in stamping，in most cases，the blank has a certain degree of freedom, only one surface of the blank contacts with the die．In some extra cases, such as the forming of the suspended region of sphere or cone，and curling at the end of tube, neither sides of the blank on the deforming zone contact with the die. The deformation in these regions are caused and controlled the die applying an external force to its adjacent area. Due to the characteristics of stamping deformation and mechanics mentioned above，the stamping technique is different from the bulk metal forming： (1) The importance of the strength and rigidity of the die in stamping forming is less than that in bulk forming because the blank can be formed without applying large pressure unit area on its surface．Instead，the techniques of the simple die and the pneumatic and hydraulic forming are developed. (2) Due to the plane stress or simple strain state in comparison with bulk forming，more research on deformation or force and power parameters has been done, stamping forming can be performed by more reasonable scientific methods．Based on the real time measurement and analysis on the sheet metal properties and stamping parameters, by means of computer and some modem testing apparatus research on the intellectualized control of stamping process is also in proceeding. (3) It is shown that there is a close relationship between stamping forming and raw material. The research on the properties of the stamping forming，that is，forming ability and shape stability, has become a key point in stamping technology. The research on the properties of the sheet metal stamping not only meets the need of the stamping technology development，but also enhances the manufacturing technique of iron and steel industry, and provides a reliable foundation for increasing sheet metal quality． 3 China's mold industry and its development trend 。 Due to historical reasons for the formation of closed, "big and complete" enterprise features, most enterprises in China are equipped with mold workshop, in factory matching status since the late 70s have a mold the concept of industrialization and specialization of production. Mold production industry is small and scattered, cross-industry, capital-intensive, professional, commercial and technical management level are relatively low. According to incomplete statistics, there are now specialized in manufacturing mold, the product supporting mold factory workshop (factory) near 17 000, about 600 000 employees, annual output value reached 20 billion yuan mold. However, the existing capacity of the mold and die industry can only meet the demand of 60%, still can not meet the needs of national economic development. At present, the domestic needs of large, sophisticated, complex and long life of the mold also rely mainly on imports. According to customs statistics, in 1997 630 million U.S. dollars worth of imports mold, not including the import of mold together with the equipment; in 1997 only 78 million U.S. dollars export mold. 發(fā) 。 At present the technological level of China Die & Mould Industry and manufacturing capacity, China's national economy in the weak links and bottlenecks constraining sustainable economic development. 3.1 Research on the Structure of industrial products mold In accordance with the division of China Mould Industry Association, China mold is divided into 10 basic categories, which, stamping die and plastic molding two categories accounted for the main part. Calculated by output, present, China accounts for about 50% die stamping, plastic molding die about 20%, Wire Drawing Die (Tool) about 10% of the world's advanced industrial countries and regions, the proportion of plastic forming die die general of the total output value 40%. Most of our stamping die mold for the simple, single-process mode and meet the molds, precision die, precision multi-position progressive die is also one of the few, die less than 100 million times the average life of the mold reached 100 million times the maximum life of more than accuracy 3 ~ 5um, more than 50 progressive station, and the international life of the die 600 million times the highest average life of the die 50 million times compared to the mid 80s at the international advanced level. China's plastic molding mold design, production technology started relatively late, the overall level of low. Currently a single cavity, a simple mold cavity 70%, and still dominant. 。A sophisticated multi-cavity mold plastic injection mold, plastic injection mold has been able to multi-color preliminary design and manufacturing. Mould is about 80 million times the average life span is about, the main difference is the large deformation of mold components, excess burr side of a large, poor surface quality, erosion and corrosion serious mold cavity, the mold cavity exhaust poor and vulnerable such as, injection mold 5um accuracy has reached below the highest life expectancy has exceeded 20 million times, the number has more than 100 chamber cavity, reaching the mid 80s to early 90s the international advanced level. 3.2 mold Present Status of Technology Technical level of China's mold industry currently uneven, with wide disparities. Generally speaking, with the developed industrial countries, Hong Kong and Taiwan advanced level, there is a large gap. The use of CAD / CAM / CAE / CAPP and other technical design and manufacture molds, both wide application, or technical level, there is a big gap between both. In the application of CAD technology design molds, only about 10% of the mold used in the design of CAD, aside from drawing board still has a long way to go; in the application of CAE design and analysis of mold calculation, it was just started, most of the game is still in trial stages and animation; in the application of CAM technology manufacturing molds, first, the lack of advanced manufacturing equipment, and second, the existing process equipment (including the last 10 years the introduction of advanced equipment) or computer standard (IBM PC and compatibles, HP workstations, etc.) different, or because of differences in bytes, processing speed differences, differences in resistance to electromagnetic interference, networking is low, only about 5% of the mold manufacturing equipment of recent work in this task; in the application process planning CAPP technology, basically a blank state, based on the need for a lot of standardization work; in the mold common technology, such as mold rapid prototyping technology, polishing, electroforming technologies, surface treatment technology aspects of CAD / CAM technology in China has just started. Computer-aided technology, software development, is still at low level, the accumulation of knowledge and experience required. Most of our mold factory, mold processing equipment shop old, long in the length of civilian service, accuracy, low efficiency, still use the ordinary forging, turning, milling, planing, drilling, grinding and processing equipment, mold, heat treatment is still in use salt bath, box-type furnace, operating with the experience of workers, poorly equipped, high energy consumption. Renewal of equipment is slow, technological innovation, technological progress is not much intensity. Although in recent years introduced many advanced mold processing equipment, but are too scattered, or not complete, only about 25% utilization, equipment, some of the advanced functions are not given full play. Lack of technology of high-quality mold design, manufacturing technology and skilled workers, especially the lack of knowledge and breadth, knowledge structure, high levels of compound talents. China's mold industry and technical personnel, only 8% of employees 12%, and the technical personnel and skilled workers and lower the overall skill level. Before 1980, practitioners of technical personnel and skilled workers, the aging of knowledge, knowledge structure can not meet the current needs; and staff employed after 80 years, expertise, experience lack of hands-on ability, not ease, do not want to learn technology. In recent years, the brain drain caused by personnel not only decrease the quantity and quality levels, and personnel structure of the emergence of new faults, lean, make mold design, manufacturing difficult to raise the technical level. 3.3 mold industry supporting materials, standard parts of present condition Over the past 10 years, especially the "Eighth Five-Year", the State organization of the ministries have repeatedly Material Research Institute, universities and steel enterprises, research and development of special series of die steel, molds and other mold-specific carbide special tools, auxiliary materials, and some promotion. However, due to the quality is not stable enough, the lack of the necessary test conditions and test data, specifications and varieties less, large molds and special mold steel and specifications are required for the gap. In the steel supply, settlement amount and sporadic users of mass-produced steel supply and demand contradiction, yet to be effectively addressed. In addition, in recent years have foreign steel mold set up sales outlets in China, but poor channels, technical services support the weak and prices are high, foreign exchange settlement system and other factors, promote the use of much current. Mold supporting materials and special techniques in recent years despite the popularization and application, but failed to mature production technology, most still also in the exploratory stage tests, such as die coating technology, surface treatment technology mold, mold guide lubrication technology Die sensing technology and lubrication technology, mold to stress technology, mold and other anti-fatigue and anti-corrosion technology productivity has not yet fully formed, towards commercialization. Some key, important technologies also lack the protection of intellectual property. China's mold standard parts production, the formation of the early 80s only small-scale production, standardization and stand