側(cè)板落料沖孔復(fù)合模設(shè)計(jì),側(cè)板落料,沖孔,復(fù)合,設(shè)計(jì) 桂林電子科技大學(xué) 第 1 頁(yè) 共 19 頁(yè) 原文一 Digital system in the horizontal grinder application of the status quo and development trend Modern industrial production small and large parts for the production of products of the increasing proportion of parts complexity and precision requirements rapidly increase the traditional general machine tools has become increasingly difficult to meet the requirements of modern production and a high precision CNC machine tools high efficiency the use of a machine can complete complex 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 quality 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 technology more closely integrated flexible production automation as 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 systems 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 companies such famous grinder factories no longer produce ordinary grinder Japanese Forces Japan the company also Hing bulk production facility wide functional ping himself in the development of high grade digital ping himself while actively developing 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 broader SUPER BRILLIANT series is one 桂林電子科技大學(xué) 第 2 頁(yè) 共 19 頁(yè) dimensional and shaped grinder Sanzuobiao 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 BRILLIANT 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 5 m 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 manufacture 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 to ease into ramps while grinding function with 11 root axis CNC control as one finds processing center British and American companies JONES Interface to the Windows operating system to increase the mouse remote operation of vehicles Fanuc major company this year launched 18I 16I 20I 21I system Siemens is 840D 810D 802D are tight structure type system There are a number of manufacturers such as Taiwan Precision Machinery Research and Development Center developed PA8000NT series CNC controls on the use of the Windows operating system of NC and NT immediate multi processing core single section procedures for processing speed 2 000 pieces s single section pre 1000 time to deal with a few pieces with Aart pre adaptation technologies and the parameters of the best learning function would follow error convergence to zero the software processing path filter to reduce machining 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 grammar 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 桂林電子科技大學(xué) 第 3 頁(yè) 共 19 頁(yè) 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 8600CNC 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 systems which O GSG applicable to horizontal grinder the grinding parts under different shapes four different methods of grinding a grinding wheel axle angle control function shortage grinding Cumo Jingmo no spark grinding a grinding cycle of grinding wheel flow position after finishing compensation function Compared to repair vehicles were repaired round normal line direction control functions roller outer arc radius compensation for the rehabilitation of the functional grinding wheel shape graphics and grinding parameters show that the functional system smallest unit set 0 1 16ug m a tight type digital systems lower prices There are also companies such as Germany and the 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 interactive programming automatic identification of cutting factor used diskettes 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 桂林電子科技大學(xué) 第 4 頁(yè) 共 19 頁(yè) 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 linear electrical balance technology the growing due process and greatly enhance the efficacy of machine tools the application of appropriate measurement techniques for the development and use of digital systems machine tools and electrical automatic control functions to redouble their might Second the development of domestic digital Ping finds Since the start of production digital horizontal grinder 1980s the development of the manufacturers 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 years of professional graphic grinder of factory production which began production in the mid 1980s from digital ping himself has developed a production MGK7132 straight axle rule Taiwan high precision ping himself MK7130 series ordinary digital ping himself MLK7140 digital relief to shape himself into MGK7120 MK7163 MK7150 straight axle rule Taiwan digital ping himself MKY7760 vertical shaft digital double carry noodles himself MKY7660 MKY7650 101 straight axle digital double carry noodles himself and HZ K1610 HZ K2010 HZ 050 CNC HZ KD2010 HZ K3015 HZ K3020 such as dedicated digital Dragon Gate Type HZ K4020 horizontal grinder and guide The development and application of digital systems developed in cooperation with universities and scientific research units in the 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 finds its production MGK7120 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 101 carry noodles grinder is fully automatic digital double technical cooperation with the Italian company Viotto products using Siemens 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 measurements grinding and measurements 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 grinding 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 functional and shaped grinding flat grinding function and it has adopted the U S company A B 桂林電子科技大學(xué) 第 5 頁(yè) 共 19 頁(yè) 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 grinding wheel or gap type grinding wheel to repair such automatic processing into compensation HZ KD2010 six axle double Motou Dragon Gate digital graphic grinder using FANUC 0MC digital systems using four roots CNC axis control two separate horizontal and vertical into Motou to use a PMC peripheral Motou 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 machine tools Third I look at the development of digital grinder I plant digital grinder development to the present already has considerable strength as mainframe production plant our digital systems have developed have come from totally dependent on the system vendor to its initial capacity of a general development process but the application of digital systems is increasing mechanical transmission chain performance alternative mechanical hand round simple processing cycle stage Compared with the advanced level there are a lot of gaps in the precision machine tools automation functions processing efficiency reliability etc have many needs improvement a breakthrough issue to be resolved I think we should all types of plants currently produce the product structure the use of technology to products summary analysis of its length or how products can compete to achieve automatic functions and how to gradually develop a plan to facilitate the learning and work To digital software development technology or conditional assignment learning with the development trend hardware on the market will manufacture products in new technologies new functional itemized practice applications to narrow the gap with advanced world levels With digital systems to improve performance and reliability reasonable prices so that digital grinder and ordinary grinder pricing acceptable to the vast number of users and with advanced manufacturing technology and automation in production demands increase the use of digital grinder will be more extensive Ping digital processing soft skills and other grinder will be better and more efficient high grade mill processing center dedicated digital grinder direction We believe accompanied by computer in depth information technology revolution digital grinder in its intelligence and information control the system will be great progress How to keep the advance of history finding suitable for the characteristics of our own path of development the breakthrough in the search for technological progress is the focus of our work which is related to the future development and survival of key enterprises 桂林電子科技大學(xué) 第 6 頁(yè) 共 19 頁(yè) 原文二 The Effect of a Viscous Coupling Used as a Front Wheel Drive Limited Slip Differential on Vehicle Traction and Handling 1 ABCTRACT The viscous coupling is known mainly as a driveline component in four wheel drive vehicles Developments in recent years however point toward the probability that this device will become a major player in mainstream front wheel drive application Production application in European and Japanese front wheel drive cars have demonstrated that viscous couplings provide substantial improvements not only in traction on slippery surfaces but also in handing and stability even under normal driving conditions This paper presents a serious of proving ground tests which investigate the effects of a viscous coupling in a front wheel drive vehicle on traction and handing Testing demonstrates substantial traction improvements while only slightly influencing steering torque Factors affecting this steering torque in front wheel drive vehicles during straight line driving are described Key vehicle design parameters are identified which greatly influence the compatibility of limited slip differentials in front wheel drive vehicles Cornering tests show the influence of the viscous coupling on the self steering behavior of a front wheel drive vehicle Further testing demonstrates that a vehicle with a viscous limited slip differential exhibits an improved stability under acceleration and throttle off maneuvers during cornering 2 THE VISCOUS COUPLING The viscous coupling is a well known component in drivetrains In this paper only a short summary of its basic function and principle shall be given The viscous coupling operates according to the principle of fluid friction and is thus dependent on speed difference As shown in Figure 1 the viscous coupling has slip controlling properties in contrast to torque sensing systems This means that the drive torque which is transmitted to the front wheels is automatically controlled in the sense of an optimized torque distribution In a front wheel drive vehicle the viscous coupling can be installed inside the differential or externally on an intermediate shaft The external solution is shown in Figure 2 This layout has some significant advantages over the internal solution First there is usually enough space available in the area of the intermediate shaft to provide the required viscous characteristic This is in contrast to the limited space left in today s front axle differentials Further only minimal modification to the differential carrier and transmission case is required In house production of differentials is thus only slightly affected Introduction as an option can be made easily especially when the shaft and the viscous 桂林電子科技大學(xué) 第 7 頁(yè) 共 19 頁(yè) unit is supplied as a complete unit Finally the intermediate shaft makes it possible to provide for sideshafts of equal length with transversely installed engines which is important to reduce torque steer shown later in section 4 This special design also gives a good possibility for significant weight and cost reductions of the viscous unit GKN Viscodrive is developing a low weight and cost viscous coupling By using only two standardized outer diameters standardized plates plastic hubs and extruded material for the housing which can easily be cut to different lengths it is possible to utilize a wide range of viscous characteristics An example of this development is shown in Figure 3 3 TRACTION EFFECTS As a torque balancing device an open differential provides equal tractive effort to both driving wheels It allows each wheel to rotate at different speeds during cornering without torsional wind up These characteristics however can be disadvantageous when adhesion variations between the left and right sides of the road surface split limits the torque transmitted for both wheels to that which can be supported by the low wheel With a viscous limited slip differential it is possible to utilize the higher adhesion potential of the wheel on the high surface This is schematically shown in Figure 4 When for example the maximum transmittable torque for one wheel is exceeded on a split surface or during cornering with high lateral acceleration a speed difference between the two driving wheels occurs The resulting self locking torque in the viscous coupling resists any further increase in speed difference and transmits the appropriate torque to the wheel with the better traction potential It can be seen in