數(shù)控、機(jī)械專業(yè)外文翻譯資料--高速銑削-數(shù)控設(shè)計(jì)(存儲版)
【正文】 prove the efficiency, quality improvement, streamline processes, investment and machine tool investment and maintenance costs rise, but prehensive, can significantly increase economic efficiency. 2 Highspeed milling Highspeed milling the main technical highspeed cutting technology is cutting the development direction of one of it with CNC technology, microelectronic technology, new materials and new technology, such as technology development to a higher level. Highspeed machine tools and highspeed tool to achieve highspeed cutting is the prerequisite and basic conditions, in highspeed machining in the performance of highspeed machine tool material of choice and there are strict requirements. Highspeed milling machine in order to achieve highspeed machining General use of highly flexible highspeed CNC machine tools, machining centers, and some use a dedicated highspeed milling, drilling. At the same time a highspeed machine tool spindle system and highspeed feeding system, high stiffness of the main characteristics of highprecision targeting and 5 highprecision interpolation functions, especially highprecision arc interpolation function. Highspeed machining systems of the machine a higher demand, mainly in the following areas: General use of highly flexible highspeed CNC machine tools, machining centers, and some use a dedicated highspeed milling, drilling. At the same time a highspeed machine tool spindle system and highspeed feeding system, high stiffness of the main characteristics of highprecision targeting and highprecision interpolation functions, especially highprecision arc interpolation function. Highspeed machining systems of the machine a higher demand, mainly in the following areas: Highspeed milling machine must have a highspeed spindle, the spindle speed is generally 10000 ~ 100000 m / min, power greater than 15 kW. But also with rapid speed or in designated spots faststopping performance. The main axial space not more than 0 .0 0 0 2 m m. Often using highspeed spindlehydrostatic bearings, air pressurebearing, mixed ceramic bearings, magic bearing structure of the form. Spindle cooling general use within the water or air cooled. Highspeed processing machinedriven system should be able to provide 40 ~ 60 m / min of the feed rate, with good acceleration characteristics, can provide m/s2 to 10 m/s2 acceleration and deceleration. In order to obtain good processing quality, highspeed cutting machines must have a high enough stiffness. Machine bed material used gray iron, can also add a highdamping base of concrete, to prevent cutting tool chatter affect the quality of processing. A highspeed data transfer rate, can automatically increase slowdown. Processing technology to improve the processing and cutting tool life. At present highspeed machine tool manufacturers, usually in the general machine tools on low speed, the feed of the rough and then proceed to heat treatment, the last in the highspeed machine on the halffinished and finished, in improving 6 the accuracy and efficiency at the same time, as far as possible to reduce processing Cost. Highspeed machining tool Highspeed machining tool is the most active one of the important factors, it has a direct impact on the efficiency of processing, manufacturing costs and product processing and accuracy. Tool in highspeed processing to bear high temperature, high pressure, friction, shock and vibration, such as loading, its hardness and wearresistance, strength and toughness, heat resistance, technology and economic performance of the basic highspeed processing performance is the key One of the factors. High
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