In order to meet the needs of the market, the sudden emergence of numerical control system technology has also provided conditions for the technological advancement of CNC machine tools. Modern manufacturing technology puts forward higher requirements for numerical control technology. Here we will introduce some of the world's numerical control technology and its equipment development. Mainly reflected in the following aspects of technical characteristics:
High reliability With the development of the networked application of CNC machine tools, the high reliability of CNC machine tools has become the goal pursued by CNC system manufacturers and CNC machine tool manufacturers. For an unmanned factory that works two shifts per day, if a continuous operation is required within 16 hours and the failure rate is above P(T)=99%, the MTBF of the CNC machine tool must be greater than 3000 hours. . We only deal with a CNC machine tool, such as the failure rate of the host and the CNC system is 10:1 (the reliability of the CNC is an order of magnitude higher than the host). At this time, the deMTBF of the CNC system must be greater than 33333.3 hours, and the deMTBF of the CNC device, spindle, and drive must be greater than 100,000 hours.
At present, the deMTBF value of foreign numerical control devices has reached more than 6,000 hours, and the drive device has reached more than 30,000 hours. However, it can be seen that there is still a gap from the ideal goal.
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