Linear electric machinery and shunt-wound machine tool: Example of innovation of machine tool technology

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Financial crisis is immersed in in global economy, have not cast off its of mixed effect today, people undertook reflection deep to prospective development, with what kind of attitude and appearance we will receive brand-new the arrival of the times? Can infer, after the crisis passes, world economy environment will produce tremendous and profound change, the development mode of technology and product also will repeat the past simply no longer, we are sure to bring up to be with new and high technology and innovation achievement prop up, be dominant with energy-saving environmental protection and low carbon economy, green and efficient contemporary and civilized times. Current extending the theme of the meeting is " period of the crisis after with science and technology innovation is received " , so, the general character that what your person fixes eyes upon, crucial technology does the machine tool of nowadays have? The reporter notices linear electric machinery and shunt-wound machine tool. Linear electric machinery: Ambitious bottleneck still puts the future a few days ago, association of industry of tool of Chinese machine tool tells a reporter about the personage: "Straight drive technology is the way that the industry develops, also be homebred machine tool is short board, in this domain, germany and Japan take chance of give first priority to. But, I understand recently, japan also encountered difficult problem on the development of straight drive technology, namely when high-power, big torque is machined inextricability medicinal powder hot issue. " company of Ingersoll of 　 United States is famous machine tool manufacturer, motor Corporation buys Kelaisile its machining center of 6 HVM600 horizontal, produce cylinder of advanced car engine to build with a future life. Rotate speed of main shaft of this machine tool 20 thousand R/min, 3 axes of X/Y/Z by the drive of linear electric machinery of GEFANUC. These 6 machining center produce 300 cylinder to build everyday, be equivalent to the output of 11 machining center that are not drive of linear electric machinery. Current, the famousest machine tool manufacturer on the world does not have the machine tool product that rolled out drive of linear electric machinery exceptionally almost, breed covered type of great majority machine tool. Home also began linear electric machinery to study in the application on the machine tool since 1995, if Guangdong project is big feed of machine tool of numerical control of the GD-3 of the drive of sharp reaction electric machinery of research and development high speed is unit, the long distance permanent magnetism that Tsinghua studies is linear servo is unit, the machining center of the drive of linear electric machinery of research and development of Beijing Electromechanical courtyard, the shunt-wound orgnaization coordinate of drive of the cylinder that Zhejiang university develops linear electric machinery measures machine and compressed permanent magnetism the grinder of drive of linear electric machinery, the electric spark forming machine of the drive of linear electric machinery of research and development of institute of Beijing machine tool bed, the piston blame of research and development of National University of Defense Technology uses the machine tool of cutting tool of drive of linear electric machinery and northing, Na Hang and research and development of concerned unit collaboration to wait in round cutting. In addition, a few enterprises if nimble of Inc. of machine tool of numerical control of much arris of group of Hangzhou machine tool, Jiangsu, Jinan strides city of numerical control company, Shenzhen greatly a group of things with common features company of quarto of Inc. of laser science and technology, Nanjing also part to underline machine of mill of machine, Laser Cutting machine, carve, machining center to wait in planar grinder, laser used, obtained better result. In last few years, to numerical control the machine tool uses linear electric machinery to appear particularly hot on international, investigate its reason is, the actuating device of traditional machine tool depends on filar lever drive, itself of filar lever drive has a series of adverse factors, be like: Quadrature of length limitation, mechanical clearance, attrition, torque, snail one periodic error, and linear electric machinery does not have this blemish not only, and structure simple, precision can be filar lever 10 times even 100 times, acceleration can be the 20 times above of traditional machine tool. The development of technology of linear electric machinery, experienced not short history develops with a few a few falling wave type, the new-style device that uses drive of linear electric machinery and blame are linear photograph of electric machinery drive is compared, the structure that it has is simple, without the contact, without wear away, noise low, speed fast, precision tall, combination is agile waiting for an advantage is apparent, but the Bian Duan effect that opens place to cause as a result of the magnetic circuit that place of itself of linear electric machinery has and installation air gap are bigger wait for a problem, reason is in the device of a few sharp movement or system, whether to use new-style linear electric machinery to come drive, want balance advantages and disadvantages, the linear sportswear that chooses to be able to produce advantage of oneself of linear electric machinery adequately develops application in buy or system. Develop at full speed in science and technology today, in a few rotate helpless or servo electric machinery or other actuating device are loath payable place, search linear report function to develop the seat of the advantage adequately, the development of oneself is gotten in the process that satisfying human demand and desire of perfect mankind happiness, foreground is capacious, but the alternative wants discretion. Shunt-wound machine tool: The concept is original 20 centuries of open to question also 　 appeared on the world at the beginning of 70 time the first batch of electric robots, in the working domain of a few extremely only harmonic danger, be used to replace human body labor. Of this kind of robot application is series connection technology, its technology advantage is working terminal can move to each direction, have enough dynamic property and flexibility, can reach the work area of the requirement, but its precision and tigidity are poorer. All the time since, the developer of machine tool manufacturing industry people the dream is worn good the flexibility of the robot, work area is large as high as precision of traditional machine tool, tigidity good point is united in wedlock together. In 20 years of in the past, people all the time machine tool of paralell connection of motion of with a view to (PKM) develop. Since its come out, the research and development of shunt-wound machine tool, still be in phase of research, trial-produce, try out on the whole, the research content such as rule of influence of the kinetic character to shunt-wound machine tool and its treatment precision still lies start level. With sacrifice working space and nimbleness are cost, try to acquire tall stiffness, high carrying capacity, good motion character, but so far, the shunt-wound machine tool that develops domestic and internationally did not reach the precision capacity of an expectation. Standing vice-president Wu Bailin tells association of industry of tool of Chinese machine tool the reporter: "I do not value the progress of shunt-wound machine tool. An academician holds same point of view with me, he asks me, what is having to machine to must use what ability of shunt-wound machine tool comes true? " 　 but the impulse that this not cloggy enterprise tries. September 2009, inc. of numerical control of power sea Hua Dong (the following abbreviation " Hua Dong numerical control " ) with company of Swedish Ike Si Kang (EXECHON) (the following abbreviation " Ike Si Kang " ) sign " the production license agreement of EIM-01 " . The paralell connection of whole set series that Hua Dong numerical control recommends company of Ike Si Kang through making permissive way moves machine tool technology, by the company production is made, sale series paralell connection moves machine tool of numerical control of 5 axes linkage. The machine tool product that company of Ike Si Kang assures to with its the technology is produced checks and accept qualification in the factory of the user. Shunt-wound machine tool, had begun to enter essence to run level, present many competition situation. Liang Xun of director of reputation of association of industry of tool of Chinese machine tool thinks, shunt-wound machine tool is OK " work ingeniously is replaced work energetically " . As a result of the high flexibility of this kind of machine tool, can machine to what weigh large work to undertake personate, be equivalent to going up on the function ten million yuan planer-type milling machine; Next, its applied limits potential is greater. Actually, group of Harbin measure cutting tool (the following abbreviation " haing quantity " ) at was opposite first 2006 paralell connection of Ike Si Kang moves of the machine tool introduce, also Liang Xun is run single-handed. As the expert, he is more than the promotion that has had shunt-wound machine tool in a kind of circumstance, its reason is him namely hold to the future of this kind of technology and to this kind of type value. Machine tool of China International of previous term or session is exhibited (CIMT2009) on, the person that regard home as the earliest transfer of technology, haing quantity also exhibited and the prototype of online bed. Liang Xun says, home introduces Ike Si Kang and 3 enterprises of online bed are on product standards somewhat difference. Breath out a quantity to basically do 700mm norms (the business that this one norms also transferred Korea at the same time) ; Hua Dong numerical control basically does 900mm, 1000mm, the shunt-wound machine tool of norms of 1100mm, 1300mm; Long march basically does 300mm, 500mm from tribute. CNC Milling CNC Machining