制件混排级进模设计(外文翻译).pdf

山东理工大学 毕业设计毕业设计论文论文 题目 题目 制件混排制件混排级进模设计级进模设计 宝宝制作宝宝制作 QQQQ 894746285894746285 学 院 工程技术学院 专 业 机械设计制造及自动化 学生姓名 学 号 指导教师 Chapter I General Die is mass produced products with the shape of the tools industrial production is the main process equipment Die industry is the foundation of the national economy industries Modern die industry is technology capital intensive industries Mold is a modern high tech background of the technology intensive industries high techtalent intensive industries It as an important production equipment for various industries in theservice industry while services directly to the high tech industries As mold to adopt a series of high tech such as CAD CAE CAM CAPP such as technology computer network technology laser technology reverse engineering and concurrent engineering rapid prototyping techniques and agile manufacturing technology ultra high speed processing and finishing fine Processing complex processing surface treatment technologies and so on so Die industrial high tech industries have become an important part Die technology to a large extent determined by the overall level of talent and mold the level of technology determines the quality effectiveness and capability to develop new products mould technology has become a national product to measure the level of the important manufacturing Signs China s mould industry has developed rapidly in recent years according to incomplete statistics China s 2004 production plants die at about 30 000 more than 800 000 employees who die industry in 2005 to maintain the good momentum of development mold sufficient on the whole enterprise Full mandate the sales of 61 billion yuan die than the 25 percent growth in 2004 at the same time China s mold production technology have greatly improved some have mold production levels close to or reached international standards Die imports in 2005 amounted to 2 068 billion U S dollars up 14 07 percent indicating high tech content die far failed to meet the domestic needs of the market 2005 China exported 738 million U S dollars die an increase of 50 31 percent 2005 import and export ratio of 2 8 1 in 2004 than the 3 69 1 more reasonable 2005 China s total imports and exports of 2 806 billion yuan die the net imports and exports reached 1 33 billion U S dollars of imports the net imports for the larger countries 2006 China will have more die industrial growth with high technical content in the mold is still the national development priorities 1 1 subject source purpose meaning This issue is for the mechanical engineering department to issue template blanking die design Use of CAD software stamping die design mold design all the parts to complete assembly use of the reference study and work out feasible size determine the parameters of Die designed by name out of the workpiece is a template 5 Template 5 45 steel material material thickness 5 0 0 1 120 die of the development of technology Mold is not mass produced products it has a single production and to rely on the characteristics of a particular user On the mold industry introducing advanced foreign technology not with the usual introduction of product licensing and transfer of technology but mainly has been the introduction of the commercialization of the CAD CAM CAE software and precision machining equipment the introduction of foreign advanced manufacturing mold Concepts the introduction of foreign advanced manufacturing talent Die Die joint use of Chinese and foreign design to employ foreign experts such as ways to develop their own national mold industries Die CAD CAE CAM and CAD CAE CAM integration involving a wide variety of disciplines engineering technology and in one integrated technology intensive products Modernization of the mold to achieve digital design digital manufacturing digital management digital production process the figures did not die there will be no modern mold Die CAD CAE CAM technology with each passing day the work is important for follow up With the continuous progress of science and technology and the rapid development of industrial production cold and die technology innovation and development mainly reflected in the following areas 1 Comprehensively promote CAD CAE technology Die CAD CAM CAE technology is the design and manufacture of molds the direction of development With the computer software development and progress popular CAD CAM CAE basic technical conditions have been mature enterprises will increase the CAD CAM technology training and technical service efforts and further expand the application of CAE technologies Computer and the Internet is making the development of CAD CAM CAE technology trans regional inter enterprise Kuayuan by the entire industry to promote it possible to achieve the re integration of technical resources so that the virtual manufacturing possible 2 High speed milling In recent years the rapid development of foreign milling processing substantially improve the efficiency and availability of high surface finish In addition the module can be processed high hardness but also a low temperature heat distortion small advantages High speed milling technology the automobile home appliances industry in large cavity mold manufacturing injected new vitality Currently it has more agile intelligent and integrated development 3 Die scanning and digital systems High speed scanner and scanning system provided a mold from the model or in kind to the scanning process to expect the model for many functions greatly reducing the mold in the development of the manufacturing cycle Some quick scan system for quick installation of the existing milling machine and processing center achieve rapid data collection and automatically generate the various CNC machining process the different format CAD data for the manufacturing sector Die Reverse engineering Die scanning system in the vehicles motorcycles and home appliances industries has been successfully applied I believe in the 10th Five Year Plan period will play a greater role 4 EDM Milling EDM milling technology known as electric spark into a processing technology which is an alternative to the traditional processing cavity electrode forming the new technology it is a high speed rotation of the tubular electrode for a simple three dimensional or two dimensional outline of processing like CNC milling the same it is no longer need to create complex forming electrode which is obviously EDM is a significant development in the area Abroad have been using this technology in the machine in the mold processing applications It is expected that this technology will be developed 5 Improve the level of standardization of mold Die level of standardization of China is constantly improving it is estimated that China s use of the standard mold coverage has reached 30 percent Developed countries is generally around 80 percent 6 High quality materials and advanced surface treatment technologies 7 Abrasive polishing will die automation intelligent Die die on the surface of the quality of life the appearance of quality and other parts in both a greater influence on automation intelligent grinding and polishing replace the existing manual methods to improve the quality of surface mold is an important trend of development 8 Mould the development of automated processing system This is China s long term development objectives Die automatic processing system should be rational combination of multiple machines accompanied with a jig or location positioning disk complete machines CNC tool library NC flexible and complete synchronization system quality monitoring control system China Die CAD CAM starting from the 1980s essentially duplicate low level development of the necessary infrastructure software also depend on the introduction of such as graphics software database software NC software etc the lack of practical and commercialization value because of the low quality of personnel Supporting the introduction of many CAD CAM system for the lack of secondary and development capabilities can not be significant benefits because the computer can not meet domestic use requirements the introduction of a large number of computer workstations and a wide range of expensive hardware and software maintenance and exchange are Difficulties To the early 1990s the country has nearly 10 000 Taiwan NC processing equipment the majority not equipped with automatic programming system machine utilization very low To address the above situation we think that we should first of all the existing CNC machine tools on the widespread adoption of automated programming reduce the manual programming and improve the operating rate of CNC equipment The next step should be to strengthen direct CAM technology Application of geometric process generate the required information and instructions Computer aided design efforts should be made to improve the standardization standardization and improve the mold parts of the standardized procedures improve the domestic computer functions step up personnel training especially in the mold of the popular computer technical staff knowledge strengthen the capacity of the secondary development of software set up Only databases and expert system introduced to stop blindly division of labour and vigorously develop China s national conditions suitable for CAD CAM system Die technology is an important basis for the manufacturing sector although China began very early design and manufacture die but do not form a long term industry The 20th century until the late 1980s China s industrial die before entering the fast track of development China s output in the world die Third the die was all the more widely the field The world die in a very good trend of development of a large and growing mold Second the precision molds will be getting higher and higher 10 years ago precision molds for the general accuracy of 5 microns now stands at 2 3 micron 1 micron precision molds will also be listed 3 multi functional complex mold will be further developed In addition to the new multi functional complex die stamping molding parts but also shoulder Dieya tapping riveting and assembly tasks such as locking the performance requirements for steel increasing 4 hot runner mold plastic mold in the proportion will gradually increase 5 with the plastic molding process of continuous improvement and development of gas assisted mold and adapt to high pressure injection molding process such as the development will subsequently die 6 the application of standards will become increasingly widespread Mould and Die ISO standard part of the application will greatly affect the manufacturing cycle Die Die can improve the quality and reduce mold manufacturing costs 7 rapid economic and very broad prospects for mold 8 with products such as motor vehicles and to the development of lightweight die casting mould the ratio will continue to improve At the same time die casting mould of the complexity of life and will also put increasing demands 9 plastic and steel plastic and wood to further accelerate the process plastic mold will continue to increase the ratio Because of the complexity of the mechanical parts and constantly improve the accuracy of the plastic mold of the increasingly high demand 10 Die in technology will continue to improve Although China has developed rapidly die but compared with the demand is clearly in short supply the gap is mainly focused on the sophisticated large scale complexity and longevity Die areas China in the mold accuracy life and production capacity in the manufacturing cycle and with the international average level of developed countries and there are still large gaps the main domestic plants die industry is Da Erquan and small but complete form of organization and in Die foreign enterprises are small and E small but excellent Thus found the mold industry in China s four major shortcomings 1 the system going the foundation is weak 2 scientific research and development and technical research to invest too little 3 the low level of technology and equipment and support of the poor low utilization rate 4 mold and die materials related to technological backwardness Chapter II die design and calculation 2 1 Die manufacturing process Die manufacturing process including estimates of stamping parts mold design drawings prepared mold manufacturing process planning production organization ready to die parts of the processing and heat treatment mold assembly commissioning and testing and packaging and other content 2 11 analysis estimates Die Manufacturing in the commission the first under the stamping of drawings or in kind analysis of what kind of programmes forming process and then determine Taoshuo die mould and die structure of the main processing methods and estimate costs and delivery time and so die 2 12 mold design drawings Die die design manufacturing process design is the most critical work is usually completed by the technology sector Die design drawings of the general assembly including mold and mold parts map plans drawings in addition to the structure should have shape size accuracy surface roughness the need to make the necessary technical requirements such as parts materials heat treatment and processing such as the use of With the requirement Once the mold pattern established the regulations on the production of technical documentation whether it is prepared to die of raw materials processing technology development or die assembly and acceptance are based to carry out this work 2 13 develop a point of order processing Determine die size to die in the calculation of the edge on the basis of size and then calculate the thickness of the die to determine the outline of storage die die thickness in determining when to pay attention to three issues The first to consider die on Luokong pin hole layout second pressure center should die with the geometric center basic coincidence of the third national standards should be selected according to die of Dimension According outline of the die size and punching requirements from the standard die in the die elect suitable type and identify the corresponding standards to draw on the template guided chu guided sets of die parts Painting Dies assembly Painting Dies Parts Preparation of technical documents 2 14 parts processing In accordance with the processing of order or parts of the card use of machinery processing processing and other means were prepared for rough rough semi finished heat treatment and finishing polishing or repair Institute created with the design requirements of the drawings Dies Components 2 2 parts and stamping process of analysis and In this paper designed by blanking parts of the template the figure blanking of the 45 steel materials for ordinary carbon steel stamping may have a better performance The blanking of the simple structure and in a corner of R2 fillet more suitable for punching Parts on all outstanding note of the size of tolerance freedom of size can IT14 grade determine the size of the workpiece tolerance Figure visible from the workpiece the simple appearance stamping parts precision Yaoqiubugao only need a punching processing can forming stamping parts for mass production light weight small size to simplify the mold manufacturing process to reduce production costs and a single Processes This paper design to the blanking part layout design through inspection stamping die design and manufacture Table 2 5 2 First make sure the workpiece ride boundary Workpiece ride side a 4mm Workpiece edge ride side a 4 5mm Step S 45 a 49mm Of the expected width B D 2 a 60 2 4 5 69mm Blanking of area A 1200 平方毫米 A step away from the utilization of materials A BS 100 1200 69 49 100 35 5 Check sheet standards the election to the 900 mm 1000mm plate each plate out for 224 plate 55 mm 69mm Therefore the utilization rate for each sheet n A L B 100 224 1200 55 69 100 70 8 2 21 pressure and pressure center calculation 1 Pressure on the centre of calculation Calculation of pressure on the centre to draw Au model mouth map know from the map as part X direction of symmetry the pressure on the Centre for the optional Xo 0 As part of the symmetry in the y direction symmetrical so pressure on the Centre for the optional Yo 0 Calculation ignores the edge 4 R2 fillet shows stampings pressure center coordinates 0 0 2 Chong pressure on the calculation Project results of the project formula Remarks Chong pressure blanking of the F F KLt 1 3 210 5 440 600 6KN L 210 440 mpa Discharge of Fx Fx KxF 0 04 600 6 24 024KN look up table 2 6 1 Kx 0 04 Pushing pieces of Ft Ft nKtF 1 6 0 045 600 6 5 3KN n h t 8 5 1 6 Kt 0 45 ibid The pressure Fo Fo F F F 600 6 24 024 5 3 630 224KN discharge under a rigid pieces 1 Size of 2 22 parts edge computing 2 Blanking part of the blanking die as a benchmark the punch by blanking gap value of preparation Parts of the structure size Au template size blanking Die thickness H Kb 15 mm look up table 2 9 5 in the K 0 27 H 0 27 60 16 2mm Die thickness C 1 5 2 H 1 5 to 2 16 2 24 39 32 4 mm is from C 25mm Au template side L b 2 c 60 2 25 110mm Check standards JB T 6743 1 94 Au B 90mm wide template Au is determined to shape the template 125 125 18 mm Au will form the template to create thin and hollow Dianban increase after it is admitted to 110 14 mm 2 Tuao Size Tuao length L h h h 16 10 24 50 mm Of which h increase in length including punch into the die depth highly flexible components to install etc h Tuao fixed plate thickness h rigid unloading plate thickness Tuao edge between inside and outside wall thickness check According to blanking of the structure inside and outside Tuao edge minimum thickness of 7 mm according to strength requirements of inspection stamping die design and manufacture of Table 2 9 6 known for wall thickness to 10 mm the The Tuao lateral strength enough Die Design 1 Die type choice 2 By stamping process analysis indicates that the parts of simple structure known