With the development of science and technology, ordinary processing capacity can not meet the speed of product update in a short period of time, so rotary table machine in the machinery industry in a prominent position, has a special significance. rotary table machine is generally composed of input and output equipment, CNC device, servo unit, drive device, programmable controller PLC and electrical control device, auxiliary device, machine tool body and measurement feedback device. In this regard, China is in the direction of high-speed, efficient, high-precision and high-reliability development:

(1) High speed and high efficiency. The development of machine tools to the direction of high-speed, not only improve the processing efficiency, reduce costs, but also improve the surface processing quality and accuracy of parts. Through high speed, greatly shorten the cutting time, further improve its productivity. Ultra-high speed machining, especially ultra-high speed milling, is closely related to the development and application of a new generation of high-speed rotary table machines, especially high-speed machining centers. Relying on fast and accurate digital volume transfer technology, real-time processing of high precision and high response speed can meet its high speed and high efficiency.

(2) High precision. From precision machining to ultra-precision machining, it is the direction of development of the world's industrial powers. Its accuracy is from micron level to sub-micron level, and even nanometer level, and its application range is becoming more and more extensive. Ultra-precision machining mainly includes ultra-precision cutting (turning, milling), ultra-precision grinding, ultra-precision grinding and polishing, and ultra-precision special machining. With the development of modern science and technology, the emergence of new materials and new parts, and the proposal of higher precision requirements have promoted the improvement of ultra-precision machining technology, such as new ultra-precision machining machines, to adapt to the development of modern science and technology.

(3) High reliability. Its working environment is relatively harsh, and the fluctuation and interference of the voltage of the industrial power grid are extremely unfavorable to the reliability of the equipment, so the reliability requirements of CNC are better than that of the general computer. The machining parts are more complex, the processing cycle is long, the average trouble-free time is required to be more than 20,000 hours, and there are a variety of alarm and protection measures; When the fault occurs, it is possible not to damage the machine tool, tool and workpiece, and can understand the fault parts according to the alarm information, and eliminate the fault in time.

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