機(jī)械加工專業(yè)畢業(yè)設(shè)計(jì)外文資料翻譯--高速切削加工的發(fā)展及需求-其他專業(yè)-全文預(yù)覽
【正文】 ness characteristics. HSC reason at this stage to be successful, a very crucial factor is the dynamic characteristics of the master and processing capability. In order to better describe the machine spindle stiffness characteristics of the project presented new dimensionless parameter DN value, used for the evaluation of the machine tool spindle structure on the highspeed machining of adaptability. DN value of the socalled axis diameter per minute speed with the product. The newly developed spindle machining center DN values have been great over one million. To reduce the weight bearing, but also with an array of steel products than to the much more light ceramic ball bearings。 Such feed system has removed the motor from workstations to Slide in the middle of all mechanical transmission links, Implementation of Machine Tool Feed System of zero transmission. Because no linear motor rotating ponents, from the role of centrifugal force, can greatly increase the feed rate. Linear Motor Another major advantage of the trip is unrestricted. The linear motor is a very time for a continuous machine shop in possession of the bed. Resurfacing of the very meeting where a very early stage movement can go, but the whole system of up to the stiffness without any influence. By using highspeed screw, or linear motor can greatly enhance machine system of up to the rapid response. The maximum acceleration linear motors up to 210G (G for the acceleration of gravity), the largest feed rate of up to 60 200m/min or higher. 2021 worldrenowned Shanghai Pudong maglev train project of maglev track steel processing, Using the Shenyang Machine Tool Group Holdings Limited McNair friendship pany production plants into extralong highspeed system for largescale processing centers achieve . The machine feeding system for the linear guide and rack gear drive, the largest table feed rate of 60 m / min, Quick trip of 100 m / min, 2 g acceleration, maximum speed spindle 20210 r / min, the main motor power 80 kW. Xaxis distance of up to 30 m, 25 m cutting long maglev track steel error is less than mm. Maglev trains for the smooth pletion of the project provided a strong guarantee for technology In addition, the campaign machine performance will also directly affect the processing efficiency and accuracy of processing. Mold and the free surface of highspeed machining, the main wiring with small cut deep into methods for processing. Machine requirements in the feed rate conditions, should have highprecision positioning functions and highprecision interpolation function, especially highprecision arc interpolation. Arc processing is to adopt legislation or thread milling cutter mold or machining parts, the essential processing methods. Cutting Tools Tool Material development highspeed cutting and technological development of the history, tool material is continuous progress of history. The representation of highspeed cutting tool material is cubic boron nitride (CBN). Face Milling Cutter use of CBN, its cutting speed can be as high as 5000 m / min, mainly for the gray cast iron machining. Polycrystalline diamond (PCD) has been described as a tool of the 21st century tool, It is particularly applicable to the cutting aluminum alloy containing silica material, which is light weight metal materials, hig
畢業(yè)設(shè)計(jì)相關(guān)推薦
鄂ICP備17016276號(hào)-1