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編號
無錫太湖學(xué)院
畢業(yè)設(shè)計(jì)（論文）
相關(guān)資料
題目：MMW7660臥式雙端面磨床改進(jìn)設(shè)計(jì)
信機(jī) 系 機(jī)械工程及自動化專業(yè)
學(xué) 號： 0923233
學(xué)生姓名： 趙 原
指導(dǎo)教師： 許菊若 （職稱：副教授 ）
（職稱： ）
2013年5月25日
目 錄
一、畢業(yè)設(shè)計(jì)（論文）開題報(bào)告
二、畢業(yè)設(shè)計(jì)（論文）外文資料翻譯及原文
三、學(xué)生“畢業(yè)論文（論文）計(jì)劃、進(jìn)度、檢查及落實(shí)表”
四、實(shí)習(xí)鑒定表
無錫太湖學(xué)院
畢業(yè)設(shè)計(jì)（論文）
開題報(bào)告
題目：MMW7660臥式雙端面磨床改進(jìn)設(shè)計(jì)
信機(jī) 系 機(jī)械工程及自動化 專業(yè)
學(xué) 號： 0923233
學(xué)生姓名： 趙 原
指導(dǎo)教師： 許菊若 （職稱：副教授 ）
（職稱： ）
2012年11月25日
課題來源
本課題來源于無錫開源機(jī)床集團(tuán)有限公司合作改造項(xiàng)目。
科學(xué)依據(jù)（包括課題的科學(xué)意義；國內(nèi)外研究概況、水平和發(fā)展趨勢；應(yīng)用前景等）
雙端面磨床是一種在現(xiàn)代工業(yè)中應(yīng)用非常廣泛的高效加工設(shè)備,它是平面磨削加工機(jī)床的一個重要分支。雙端面磨床的優(yōu)點(diǎn)是磨削效率高、自動化程度高、不用吸盤夾持和加工精度高,在諸如汽車制造、軸承、工具、壓縮機(jī)制造等行業(yè)有廣泛的應(yīng)用。
據(jù)有關(guān)文獻(xiàn)介紹,早在1894年美國的Gardner與Besly合伙制造了世界上第一臺端面磨床,1912年由Gardner公司制造出第一臺雙端面磨床。經(jīng)過近百年的發(fā)展與演變,使雙端面磨床成為許多行業(yè)中關(guān)鍵的高效加工設(shè)備。
雙端面磨床的工件兩端面同時(shí)被連續(xù)磨削,加工時(shí)間與工件上下料等輔助時(shí)間重合,加工效率高,適合于大批量生產(chǎn)。磨削工件時(shí),不必采用電磁吸盤夾持,這樣可以避免工件有剩磁。特別是在用吸盤進(jìn)行薄型工件磨削時(shí),由于工件易翹曲變形,必須進(jìn)行反復(fù)數(shù)次磨削。雙端面磨床適合加工薄型工件。此外,還適合磨削非磁性材料與非金屬材料。雙端面磨床能連續(xù)磨削工件,可以在機(jī)床上配置自動測量、自動補(bǔ)償、自動上下料等機(jī)構(gòu)。因此,雙端面磨床要比一般平面磨床自動化程度高,適宜在自動線上聯(lián)機(jī)生產(chǎn)，是一種有前途的具有生命力的機(jī)床。
研究內(nèi)容
1熟練掌握MMW7660臥式雙端面磨床的工作原理與結(jié)構(gòu)。
2熟悉掌握MMW7660臥式雙端面磨床進(jìn)給運(yùn)動過程中的結(jié)構(gòu)設(shè)計(jì)與受力分析并對進(jìn)給部分進(jìn)行改進(jìn)。
3將滑動導(dǎo)軌改進(jìn)為滾動導(dǎo)軌，采用伺服電機(jī)并對絲桿螺母部分進(jìn)行改進(jìn)。
擬采取的研究方法、技術(shù)路線、實(shí)驗(yàn)方案及可行性分析
總結(jié)本磨床的基本結(jié)構(gòu)，工作方式與原理。然后根據(jù)考察的結(jié)果，再查閱相關(guān)書籍，確定基本的設(shè)計(jì)參數(shù)。交由指導(dǎo)老師檢查，修改。完成后，再對主要載荷部件進(jìn)行校核。最后出主要零件的零件圖，編寫設(shè)計(jì)說明書。
研究方法：首先是根據(jù)砂輪架主軸的要求進(jìn)行軸的設(shè)計(jì)，然后再選取軸承，設(shè)計(jì)皮帶和皮帶輪等等。
研究計(jì)劃及預(yù)期成果
研究計(jì)劃：
2012年10月12日-2012年12月31日：按照任務(wù)書要求查閱論文相關(guān)參考資料，完成畢業(yè)設(shè)計(jì)開題報(bào)告書。
2013年1月1日-2013年1月27日：學(xué)習(xí)并翻譯一篇與畢業(yè)設(shè)計(jì)相關(guān)的英文材料。
2013年1月28日-2013年3月3日：畢業(yè)實(shí)習(xí)。
2013年3月4日-2013年3月17日：本磨床的的主要參數(shù)計(jì)算與確定。
2013年3月18日-2013年4月14日：本磨床總體結(jié)構(gòu)改造設(shè)計(jì)。
2013年4月15日-2013年4月28日：零件圖及二維畫圖設(shè)計(jì)。
2013年4月29日-2013年5月21日：畢業(yè)論文撰寫和修改工作。
預(yù)期成果：
根據(jù)提供的主要構(gòu)件參數(shù)而計(jì)算出的傳動構(gòu)件的參數(shù)，尺寸及機(jī)體等是合理的，并且通過對本磨床四桿螺母和進(jìn)給部分的改進(jìn)，最終提高本磨床的精度，效率及自動化程度。
特色或創(chuàng)新之處
本磨床在布置上有對稱的兩個模頭，拖板進(jìn)給機(jī)構(gòu)，并采用定程系統(tǒng)，進(jìn)給補(bǔ)償和修正均采用機(jī)動，一般能自動卸料，實(shí)現(xiàn)全自動化，較方便，納入自動線成本較低。通過對四桿螺母和進(jìn)給部分的改造，使該機(jī)床從精度，效率自動化程度來看是一種有前途的具有生命力的機(jī)床。
已具備的條件和尚需解決的問題
1 實(shí)驗(yàn)方案思路已經(jīng)非常明確，已經(jīng)具備使用CAD制圖的能力和了解MMW7660雙端面磨床的原理結(jié)構(gòu)等知識。
2 使用CAD制圖能力尚需加強(qiáng)。
3 準(zhǔn)確的計(jì)算校核有待完成。
指導(dǎo)教師意見
指導(dǎo)教師簽名：
年 月 日
教研室（學(xué)科組、研究所）意見
教研室主任簽名：
年 月 日
系意見
主管領(lǐng)導(dǎo)簽名：
年 月 日
英文原文
Digital system in the horizontal grinder application of the status quo and development
Raymond Cooper
Modern industrial production,small and large parts for the production of products of the increasing proportion of parts complexity and precision requirements rapidy increase , the traditional general machine tools has become increasingly difficult to met the requirements of modern production ,and a high-precision CNC machine tools,high-efficiency,the use of a manchine can complete comple type face processing characteristics ,in particular the rapid development of computer technology and the widespread use of digital systems,digital devices from almost all major software functions to achieve ,almost to a hardware ,thereby making it more flexible processing ,functional stronger.
Manufacturing competition from lower labour costs early, product cost and improve their overall efficiency and qualitiy of competition ,to meet customer demands comprehensive ,actively develop new products competitive ,will face knowledge—technical—updated products has become shorter and shorter, an increasing number of small products, and the quality ,performance requirements are higher ,Meanwhile community to environmental protection ,the growing awareness of green manufacturing .therefore advanced manufacturing technology will be quickly won the competition and survival of the enterprise ,the principal means of development .Computer information technology and manufacturing automation tas an important foundation for digital machine in the production of machine tools to share more. First digital Ping finds the status quo and digital systems primaril.
First, digital ping finds the status quo and digital systems primarily .
Horizontal grinder compared to the lathe,milling machine,using digital systems later,the special requirements because of its digital sustems.In the past decade,with the technical facility,grinder,the grinding wheel for repair,automatic compensation,automatic exchange grinding wheel,and more workstations,such as automatic transmission and Zhuangjia working inoperable realized,and digital technology in the horizontal grinder ,gradually spread.In recent Hanover,Tokyo,Chicago,and other large domestic machine tool exhibition,CNC grinder throughout the grinder,for the majority of the exhibits,such as Germany Blohm company ELB conpanies such famous grinder factories no longer proudce ordinary grinder Japanese Forces,Japan,low digital ping himself.
German production company a few years ago ELB brilliant series two Coordinates facility shaped grinder,the vertical and horizontal axis for digital,vertical for hydraulic control,grinding wheel repair work platform installed in a roller diamonds,the application of brodader;SUPER-BRILLIANT series is one-dimensional and shaped grinder Ssnzuobiao facility,the beds are manufactured using natural granite,high geometric accuracy,slide away from straight rolling guide,driving without recoiling machinery,thus ensuring a better working surface smoothness;BRILIANT-FUTURE series of improvements to the above two products,using artificial granite bed was produced by static pressure vertical guide,Chixing belt transmission,vertical and horizontal guide for pre reinforced straight rolling guide,Gunzhusigang transmission,three-axis CNC control AC servo electrical,measuring 0.5m 16ug image.ELB company has also developed the latest
Technology grinder contemporary products,and integration with computer and technology-based series of soft skills CAM-MASTER processing modules CAD-MASTER series and COMPACT-MASTER series grinding processing center,a maximum of up to 24 axis control axis,As the full implementation of modular
Design and anufacture of dedicated grinder cycle shortened ELB company has also developed a variety of highly efficient dedicated grinder ,such as SFVG100/2 dedicated grinder ,which will tilt Motou ,continuous improvements, toease into ,processing center . British and Amrrican companies JONES&SHIPMAN A-B company developed A-B8600 digital systems for igital FORMAT5 type ping himself form the facility hydraulic control valves ,driven vertical movement can be governor, to the use of horizontal and Motou into Gunzhusigang deputy ,Electrical DC servo –driven, intermittent style grinding wheel repair ,CRT graphics simulation showed .Also be used with other types of digital systems to meet different user requirements.
Currently ,the semiconductor master degrees continual incrase in the newly introduced system in the appearance of smaller ,more compact strccture functions increased distance ommuications ,remote diagnosis ,multiple plane networking etc ;Interface to the Window operating system to increase the mouse .remote operation of vehicles .Fanuc major company this year launched 18,16I,20I,21Isystem Siemens is 840D,810D,802D are tight structure type system .There are a number of manufacturers such as : Taiwan Precision CNC controls on the use of the window operating system of NC ,and NT immediate multi-processing core ,single-section procedures for processing speed 2000 pieces /s,single-section pre-1000 time to deal with a few pieces ,with Aart (pre –adaptation technologies) and the parameters of the best learing function would follow error convergence to zero , the software processing path filter to reduce maching process generated by the acceleration changes excessive mechanical resonance ,thereby improving surface roughness ; with the use of servo flexible ,with+, -10v analogy servo interface It also provides international standards SERCOS digital servo communications interface design Tixingtu ；PLC procedures ,structure expressions, functional pieces ,instructions code ,flowcharts , five facilitate design, communication and maintenance; long-range communications with the computer, instant remote maintenance functions; control can be extended to a maximum axle and spindle axis 64. I/O points which can be expanded to 792/528 point, the introduction of Pentium processors, high-speed Plc processing speed to 25K.
Apart from the world famous Siemens, Fanuc digital systems, such as professional development and production of the plant has been applied to many horizontal or shaped grinding system, a number of production plants Ping finds itself actively developed application in the digital grinder system. Notably: Siemens SINUMERIK 840D of the system, the system has more than 20 roots servo axis, the coordinates for the trip control, manual data entry or imported through external computer, remote diagnosis may reduce the grinding wheel diameter change itinerary, grinding wheel repair of automatic compensation Gunzhusigang gap error compensation, Siemens 3G system is specifically for grinding and processing development, for both dialogue with the presentation devices operate in axis tilt, can also be straight and arc widely in grinding, recurring operational cycle, such as the main axis swing, and use external signal interruption implementation procedures, grinding wheel cut, grinding wheel repair, and other special functions for the preparation of a fixed cycle procedures. Not only can use its external measurement devices (switches signal), but when connected to a suitable time to first measurement and control devices directly to the ultimate size comparison.
American companies ALLEY-BRANDLY production 8400CNC digital series apply lathe, milling machine and grinder, 8400CNC up to 6 roots servo axis control, the Section 2 axle may drain, the three axis may helix spaced, six axle straight drain. 8600CNC series of coordinates to control 17, including eight in the drain axle, eight spaces control axle and one allegation that a graphic shown that the expansion of branch procedures that processing time, high-speed access procedures, cutlery life monitoring function .
Japanese companies developed FANUC OG high-speed high –performance digital system, which 0-GSG applicable to horizontal grinder ,the grinding parts under different shapes ,four different methods of grinding ,a grinding wheel axle angle cycle of grinding wheel flow position after finishing compensation function .Compared to repair vehicles were repaired round noemal line direction control functional grinding wheel shape graphics and grinding parameters show that the functional ,system smallest unit set 0.116ugm, a “tight ” –type digital systems, lower prices .
There are also companies such as Germany and University jointly developed by ELB UNICON system Japanese big cove ironworker OSP5000G-G,OSP30-NF such as self –development and shaped grinding digital print system ,the maximum control OSP5000G-G nine coordinates ,which can be linked six coordinates a 12-inch hall ,intractive programming, automatic identification of cutting factor used dikrttes imported ,into automated systems .the smallest pulse equivalent ,the mobile equivalent and testing equivalent 16ug are 0.1 m ,Ping himself also used simultaneously by the entire loop detectors.
Although there is the ping himself factory using digital Zhujichang system ,but self –development of software ,use it more suitable for horizontal and shaped grinding ,such as German company Siemens SINUMERIK 810 Jung based ,the company specialized software used by Jung Kontur programming language for a shaped grinding wheel repair, and graphics supporting operational functions. Japan sincerely companies in Fanuc digital systems hardware companies ,the OPL development language for grinding processing ,and so on .The liner electrical ,balance ,technology ,the growing due process,and greatlt enhance the efficacy of achine tools ,the application of appropriate measurement techniques for the development.
Since the start of production digital horizontal grinder 1980s, the development of manufactures have developed separately, the development of cooperation with universities and research units direct to introduce mature digital systems development . For example:Hangzhou Machine Tool Plant is a history of 50 yearsof professional graphic grinder of factory production, which began production in the mid-1980s from digital ping hisself ,has developed a production MGK7132 straight axle rule Taiwan high-precision ping himself into , MGK 7120 ,MK7163,MK7150 straight axle rule Taiwan digital ping himself , MKY7760 vertical shaft digital HZ-K2010,HZ-050CNC,HZ-KD2010,HZ-K3015,HZ-K3020,such as dedicated digital Dragon Gate Type HZ-K4020 horizontal grinder and guide .The development and application of systems,developed in cooperation with universities and scientfic research units in Shanbanji system ,but also for self-development to the mainframe Chanpianji the simple control system ,and the use of digital Zhujichang mature digital production system .
Ping fidns its production MGK 7120 high-precision ,the company introduced Japan Fanuc MATE-D purchased digital recording system to control Motou chin,chin to the smallest volume 0.1 16ug m ,a complete automatic grinding cycle functions.
MKY7650/0101 carry noodles grinder is fully automatic digital double technical cooperation with Iralian company Viotto products using Sinmens Simatic S5-115U programmable controller control CRT display ,machine tools left .right Motou driven by the two axis DC servo electrical, machine tools capable of manual and automatic grinding cycle of adjustment options .Equipped with Italian Maerbosi E9-measurement systems , the first two measurements , a measurement grinding wheel ,grinding wheel wear and tear of feedback to the control system , Abrasive Wheels compensation; Another measure after her first measuremrnts gringing, and measurements grinding ,s and measutements of the control system into the servo compensation for electrical; Left and right Motou used for position measurement Viotto raster control ,Having achieved a whole sets from the expected completion of the entire loop gringding and fully automatic processing.
HZ-050CNC digital linear rolling guide dedicated grinder is the Shanghai Science and Technology for the production of key industrial projects in the third research and development project dedicated grinder . Both fuctional and shaped grinding flat grinding fuction , and it has adopted the U.S.company A-B 8400MP digital production system ,a seven-kan digital axis machine tools ,X,Y,Z into three roots Motou to axle and U,V,W 3 root grinding wheel repair axle direct control by the system ,Another Q for the horizontal grinding wheel horizontal axis into the (one-dimensional with grinding)through SLC programmable controller plus wife positioning module , the mainframe system I/O imported 8400MP control its position , with continuous improvements in the grinding gringding , grinding wheel or gap-type grinding wheel to repair such automatic processing int compensation.
HZ –KD2010 sis-axle double –Motou Dragon Gate digital graphic grinder , using FANUC-OMC digital systems ,using four roots CNC axis control two separate horizontal and vertical into Motou to use a PMC peripheral Moutou control of the grinding wheel axle repair vehicles lords-chin to the other roots PMC axis control Almighty Motou sub-degree rotation . Take full advantage of the system performance, reduce production costs and enhance the Xingjiabi of machines tool .
This paper presents an alternative centerless grinding machine technology, that is, through feed surface grinder centerless grinder. In the new method, a compact centerless grinder units, guides, ultrasonic crawler, a blade of their respective holders, mounted in a surface grinder table at the workpiece is fed into and through feed centerless grinding machine operation is performed guides the space between the grinding wheel and the ultrasonic crawler. Ultrasonic crawler, the metal elastic body is bonded to the piezoelectric ceramic production, inclined at a small angle in order to provide sufficient strength to control the rotational movement of the workpiece, and feed the ultrasonic elliptical vibration of the workpiece along its axis. In this article, the movement of the workpiece control we must first ensure that the workpiece speed and feed rate can completely control the ultrasonic crawler, which is a high-precision grinding operation is essential. Then, the main process parameters, such as the eccentric angle of the workpiece, the cutting, the ultrasonic crawler inclination angle of the machining accuracy of the applied voltage amplitude (i.e., the roundness of the cylindrical workpiece and the workpiece) were clarified experiment. The results obtained show that: (1) the workpiece rotational speed can be adjusted by changing the amplitude of the applied voltage, by feedrate can be changed by applying a voltage magnitude and the ultrasonic crawler inclination angle of adjustment; (2) the top of the eccentric angle of 6 °, a larger cutting a smaller inclination angle, or the higher the applied voltage is better for higher machining accuracy; (3) and roundness of cylindrical workpiece from the initial value 16.63μm 14.86μm improvement Finally, the optimum grinding conditions under 1.49 microns and 0.74 microns.
Keywords: centerless grinding surface grinding machine ultrasonic vibration track runs through the feed roundness 1 Introduction
Centerless grinding machine, high efficiency of the manufacturing process, has been widely used in high-precision, high productivity machining cylindrical parts, such as bearing raceways, ingots, acupuncture device and catheter. In the manufacturing industry, the two types of centerless grinding machine can be purchased: one is to adjust the rollers and track. They are different from one another workpiece is how to support and how to control the workpiece speed grinding. Self-adjusting wheel type centerless grinding machine of the invention by the 1915 Anaheim (yonetsu, 1966), a lot of research has been committed to improve the precision and efficiency. Rowe and Barash (1964) proposed a computer survey methodology inherent the centerless grinder accuracy, taking into account the geometric factors and elastic deflection machine. Rowe et al. (1965) the processing of the experimental elastic parameters. Rowe and koenigsberger (1965), describe a chart and discussion of the method of analysis of a derived stable threshold Working recycled corrugated workpiece in centerless grinding encountered dynamic machine characteristics and geometric effects in the the abrasive operating system configuration. Miyashita
Deformation of the contact area and the establishment of conditions of freedom of choice of the dynamic model chatter, Experimental study of high removal rate grinding process and optimize the grinding conditions. Wu et al. (1996) to clarify the effects of grinding parameters by computer simulation methods roundness error. study the geometry of the center rounded below the center centerless grinding machine, in order to assist in the choice of setting conditions. Gold (2003) describes a 3-D grinder model takes into account the contact line between the grinding wheel and the workpiece survey through feed centerless cylindrical formation mechanism of the grinding process. krajnik et al. (2008) developed an analytical